CN217101773U

CN217101773U - High-efficient intelligent sludge purification treatment production line

Info

Publication number: CN217101773U
Application number: CN202021462088.6U
Authority: CN
Inventors: 黄俊超; 史熙; 黄美华; 徐华进; 胡伟峰; 王春香; 申文平
Original assignee: Jiangsu Hualiang Machinery Co ltd
Current assignee: Jiangsu Hualiang Machinery Co ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2022-08-02
Anticipated expiration: 2030-07-22

Abstract

The utility model discloses a high-efficient intelligent sludge purification treatment production line, include the sludge drying equipment that comprises drying unit and heat pump set, by the drainage conveyer that the drainage conveyer casing that includes the fixed ring piece of a plurality of alternate settings and activity ring piece constitutes, utilize heat pump set to make coaxial two auger accuse temperature conveyers that the heat source carries out material heating and carries, the blendor, sludge drying equipment, divide the material conveyer, and have the scraper conveyor of clearance scraper blade, dry mud feed bin, the accuse temperature screw conveyer who utilizes the comdenstion water cooling of heat pump set exhaust to arrange in proper order, constitute from the sludge transport production line of the sludge cooling output after moisture sludge drainage carries final mummification, adopt the utility model discloses a high-efficient intelligent sludge purification treatment production line enables sludge drying equipment to keep the unblocked of conveyer chain, drainage conveyer can avoid the jam of drainage in-process, mesh, The scraper conveyor can clean the adhesive on the side wall of the material groove in time, and has obvious energy-saving effect and high production efficiency.

Description

High-efficient intelligent sludge purification treatment production line

Technical Field

The utility model relates to a stoving conveying equipment especially relates to a mud mummification handles transfer chain.

Background

The sludge drying treatment is an environment-friendly and reproducible sludge treatment mode, and the dried sludge can be recycled as a raw material of building materials such as cement, glass ceramics and the like or as an auxiliary fuel, and is an advanced technology for replacing the traditional treatment modes such as landfill, incineration and the like. The sludge drying treatment system is composed of a sludge drying treatment device as a main body, a front sludge water filtering device, a conveying feeding device and a rear conveying device.

In the sludge drying equipment, the heat pump is utilized to dehumidify and dry the sludge material, which has the advantages of energy saving, environmental protection and the like, in the working process, wet sludge materials run in a closed drying unit shell by using a net chain type conveyor, dry hot air provided by a heat pump unit penetrates through a conveying net chain to evaporate moisture in the sludge materials on the conveying net chain, the temperature of the dry hot air is reduced and the humidity of the dry hot air is increased after the dry hot air absorbs the moisture in the sludge materials, the dry hot air enters the heat pump unit from a return air channel, is cooled and dehumidified by an evaporator in the heat pump unit to become dry air, the temperature of the heat in the return air absorbed by a refrigeration medium in the heat pump unit is increased after the heat in the return air is compressed by a compressor and then enters a condenser, the dry air flows through the condenser to be heated to become dry hot air, and the dry hot air is conveyed into the drying unit again by a fan to continuously dry the sludge materials. Therefore, the air medium for drying the wet materials is recycled all the time, the emission of waste gas is avoided, the heat pump realizes the heat transfer through the refrigerant, the energy-saving effect is obvious, and the whole operation cost is greatly reduced. Because the hot air as the drying medium needs to penetrate through the conveying net chain to contact the sludge material for drying, the meshes of the conveying net chain must be smooth, but for the material such as sludge, the meshes of the conveying net chain are easy to be blocked, which causes the reduction of the drying efficiency.

For sludge with extremely high water content, water filtration treatment is required before the sludge enters drying treatment equipment for drying treatment, the water filtration of the sludge by using the filtering equipment is a common mode, but a filter screen is extremely easy to block when the filtering equipment is used for filtering water, the cleaning is troublesome, and the water filtration and the conveying are carried out step by step, which inevitably results in low efficiency.

In order to ensure the drying efficiency of the sludge drying equipment, sludge materials entering the drying equipment need to have certain looseness, the moisture content of the sludge conveyed by the water filtering equipment is relatively high and cannot reach a loose state, the common solution is that a part of the sludge materials is taken out from the dried sludge and is stirred with the sludge after water filtration, the total moisture content of the stirred sludge materials is reduced, the looseness is improved, and the sludge drying equipment can be conveniently and efficiently dried, so that a plurality of conveying equipment are required to convey the sludge output by the water filtering equipment and the dried sludge used for stirring, the sludge drying treatment system has more equipment and occupies more land, the production management and the equipment maintenance are inconvenient, in addition, the temperature of the conveyed materials cannot be effectively controlled by the conventional conveying equipment, the sludge entering the drying equipment is in a normal temperature state, which is not beneficial to improving the drying efficiency.

After the sludge drying is handled, need carry the dry mud feed bin, this transportation process adopts scraper conveyor to go on usually, can guarantee the close transport of longer distance, scraper conveyor is used for carrying loose granule material usually, can leave the clearance between the transport scraper blade on the scraper chain and the silo lateral wall, in order to guarantee to carry and produce between scraper blade and the silo lateral wall and bump the friction, and its clearance also can not influence the transport of loose granule material, but if be used for carrying like this sticky material of taking of mud, then this type of material often can adhere on the silo inner wall, bring very big resistance to scraper chain's operation, also can influence scraper conveyor's conveying efficiency.

The dried sludge entering the dry sludge bin needs to be conveyed to a dry sludge utilization place, the dried sludge discharged from the sludge drying equipment is hermetically conveyed into the dry sludge bin through a scraper conveyor and keeps a higher temperature, when the dried sludge is conveyed from the dry sludge bin to the dry sludge utilization place, the higher temperature of the dried sludge cannot meet the use requirement and is often required to be cooled, and the common conveying equipment cannot meet the cooling requirement and needs to consume certain energy or an appropriate place or equipment.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned not enough that prior art exists, the utility model aims to solve the technical problem that a high-efficient intelligent sludge purification treatment production line is provided. The device can keep the meshes of the conveying net chain in the sludge drying equipment smooth, can also realize the water filtering function of the water filtering conveyor in the conveying process, can avoid the blockage in the water filtering process, can also ensure that the feeding conveying equipment of the sludge drying equipment can effectively control the temperature of each conveyed material while conveying different materials, can ensure that a scraper conveyor after the sludge drying equipment discharges can timely clean the adhesive on the side wall of the material tank, and can also control the temperature of finally output dry sludge; meanwhile, the whole drying treatment conveying line has obvious energy-saving effect and high production efficiency.

In order to solve the technical problem, the utility model discloses a high-efficient intelligent sludge purification treatment production line, including sludge drying equipment, sludge drying equipment includes heat pump set and the drying unit who communicates with each other with heat pump set, and the operation has the net chain conveyer in the drying unit, the net chain conveyer is equipped with at least three groups, and each net chain conveyer is staggered arrangement from top to bottom at interval, and the direction of delivery of adjacent net chain conveyer is opposite, and the stoving feed inlet of drying unit corresponds with the feed end of the net chain conveyer of the superiors, and the stoving discharge gate of drying unit corresponds with the discharge end of the net chain conveyer of the lowest floor; a cleaning roller is rotatably supported on the net chain conveyor and is positioned at the inner side of the discharge end of the net chain conveyor, a plurality of cleaning convex columns are arranged on the surface of the cleaning roller, the cleaning convex columns are inserted into corresponding meshes on a conveying net chain in the net chain conveyor, and the cleaning roller is driven to rotate by the conveying net chain through the meshes and the cleaning convex columns; a hot air input hopper is arranged below a drying shell of the drying unit, the hot air input hopper is communicated with a hot air output port of the heat pump unit, a return air collecting hopper is arranged above the drying shell of the drying unit, the return air collecting hopper is communicated with a return air suction inlet of the heat pump unit, and an opening of the hot air input hopper and an opening of the return air collecting hopper are opposite to the net chain conveyor; the heat pump unit comprises a heat pump unit shell, an evaporator, a compressor, an expansion valve, a condenser and a fan, wherein the evaporator, the compressor, the expansion valve and the condenser form a refrigerant working loop; a return air auxiliary suction inlet, a hot air auxiliary output port and a condensate water outlet communicated with a condensate water tank are also arranged on a heat pump unit shell of the heat pump unit;

the drying feed port is communicated with a material mixing discharge port of the material mixing machine, the material mixing machine is provided with two material mixing feed ports, and the two material mixing feed ports are respectively communicated with an outer auger discharge port and an inner auger discharge port on the coaxial double auger temperature control conveyor; the drying discharge port is communicated with the feed port of the distributing conveyor, one discharge port of the distributing conveyor is communicated with the outer auger feed port of the coaxial double auger temperature control conveyor, and the other discharge port of the distributing conveyor is communicated with the feed port of the scraper conveyor;

the coaxial double-auger temperature-control conveyor comprises an auger casing fixedly connected on a base, an outer auger is arranged in the auger casing, an outer auger blade of the outer auger is arranged at the periphery of the auger barrel, the two ends of the auger casing are provided with outer auger end covers, the auger barrel is movably inserted in the outer auger end covers in a sealing manner, the two ends of the auger casing are respectively provided with an outer auger feed inlet and an outer auger discharge outlet, an inner auger is also arranged in the auger casing, the two ends of the auger barrel are movably connected with the inner auger end covers, the inner auger end covers are fixedly connected on the base, the outer auger shaft of the inner auger is rotatably supported on the inner auger end covers, the outer auger and the inner auger are respectively in transmission connection with corresponding driving devices, the outer auger blade is of a hollow structure, and the two ends of the outer auger blade of the hollow structure are provided with outer auger blade end covers, an outer auger communicating hole communicated with the outer blade hollow cavity of the outer auger blade is formed in the outer auger blade end cover, the outer auger blade end cover is in sealed movable connection with the outer auger end cover at the corresponding end of the auger casing, an outer auger liquid communicating cavity is formed between the outer auger blade end cover and the outer auger end cover at the corresponding end of the auger casing, an outer auger liquid communicating joint is arranged on the outer auger end cover, and the outer auger liquid communicating joint is communicated with the outer auger liquid communicating cavity; the inner auger blade on the inner auger is of a hollow structure, inner auger blade end covers are arranged at two ends of the inner auger blade of the hollow structure, an inner auger communication hole communicated with the hollow cavity of the inner blade of the inner auger blade is formed in each inner auger blade end cover, each inner auger blade end cover is movably connected with the inner auger end cover at the corresponding end of the auger cylinder in a sealing manner, an inner auger liquid communicating cavity is formed between each inner auger blade end cover and the inner auger end cover at the corresponding end of the auger cylinder, an inner auger liquid communicating joint is arranged on each inner auger end cover, and each inner auger liquid communicating joint is communicated with the corresponding inner auger liquid communicating cavity; the outer auger liquid-passing joint and the inner auger liquid-passing joint which are positioned at the discharge end are communicated with a hot air auxiliary output port of the heat pump unit, and the outer auger liquid-passing joint and the inner auger liquid-passing joint which are positioned at the feed end are communicated with a return air auxiliary suction inlet of the heat pump unit; the feed inlet of the inner auger is communicated with the discharge hopper of the water filtering conveyor;

the water filtration conveyor comprises a feed hopper, the feed hopper is arranged on a water filtration conveyor shell, the water filtration conveyor shell comprises a feeding fixed ring piece and a discharging fixed ring piece, the feeding fixed ring piece is used for installing the feed hopper, the discharging fixed ring piece is positioned at the output end, a plurality of fixed ring pieces and movable ring pieces are alternately arranged between the feeding fixed ring piece and the discharging fixed ring piece, the inner side surface of the feeding fixed ring piece, the inner side surface of the discharging fixed ring piece and the two side surfaces of the fixed ring pieces are all attached to the side surfaces of the opposite movable ring pieces, the feeding fixed ring piece, the discharging fixed ring pieces and the fixed ring pieces are connected through connecting rods, the movable ring pieces are connected with a movable ring piece driving device, and the inner hole shape of the movable ring pieces corresponds to the inner hole shape of the fixed ring pieces; the feeding fixed ring piece, the discharging fixed ring piece and the inner hole of each fixed ring piece form a working cavity of the water filtering conveying machine shell, a conveying pressing plate is arranged in the working cavity, the shape of the conveying pressing plate corresponds to the shape of the working cavity, and the conveying pressing plate is driven by a conveying driving device to reciprocate; the discharging fixing ring piece is hinged with a discharging end cover, and the discharging end cover is tightly attached to the outer side of the discharging fixing ring piece through an elastic device; the feeding fixing ring piece and the discharging fixing ring piece are fixedly connected to a water filtering and conveying rack, a water collecting hopper is arranged on the water filtering and conveying rack, the opening of the water collecting hopper faces the lower part of the water filtering and conveying machine shell, and the water collecting hopper is communicated with a water delivery pipe; the discharging hopper is arranged below the discharging fixed ring sheet;

the scraper conveyor comprises a trough and a scraper chain, wherein conveying scrapers are arranged on the left side and the right side of the scraper chain, a cleaning scraper is arranged at the extending end of the conveying scraper on the scraper chain, the cleaning scraper is hinged to a cleaning scraper connecting seat, the cleaning scraper connecting seat is connected with the conveying scrapers, the extending direction of the cleaning scraper is the advancing direction of the scraper chain, a spring is arranged between the cleaning scraper and the cleaning scraper connecting seat, and the extending end of the cleaning scraper is attached to the side wall of the trough through the spring; the discharge hole of the scraper conveyor is communicated with a dry mud bin;

the discharge gate of dry mud feed bin and accuse temperature screw conveyer's feed inlet lead to, accuse temperature screw conveyer includes casing and conveying screw, conveying screw includes the screw axis and sets up the helical blade on the screw axis, this helical blade is hollow structure, hollow structure's helical blade both ends are provided with the blade end cover, be equipped with the intercommunicating pore that leads to with helical blade's cavity spiral chamber on the blade end cover, the sealed swing joint of casing end cover that the blade end cover corresponds the end with the casing, form logical liquid chamber between the casing end cover that blade end cover and casing correspond the end, be equipped with logical liquid joint on the casing end cover, this leads to liquid joint and leads to liquid chamber and leads to, the logical liquid joint that is located accuse temperature screw conveyer discharge end leads to with the comdenstion water outlet on the heat pump unit and leads to.

By adopting the structure, the sludge to be dried on the upper-layer net chain conveyor in the drying unit in the sludge drying equipment is conveyed to the discharge end and then falls into the feed end of the adjacent lower-layer net chain conveyor, the sludge to be dried entering the drying unit is conveyed by each net chain conveyor in sequence and then is output from the drying discharge port of the drying unit, in the process, the dried sludge on each net chain conveyor is dried by the dry hot air from the heat pump unit entering the drying unit, in addition, the dried sludge on the upper-layer net chain conveyor can automatically generate one-time stirring and scattering in the process that the dried sludge falls into the feed end of the adjacent lower-layer net chain conveyor from the discharge end, the dried sludge after the scattering is more favorable for the infiltration of the dry hot air, the drying process is easier to realize, at least three groups of net chain conveyors can perform one-time stirring and scattering operation more when one group is added, the drying efficiency will be higher. The cleaning convex columns on the cleaning roller are inserted into the meshes of the conveying net chain, sludge embedded into the meshes can be ejected out, the meshes are smooth, the conveying net chain in operation stirs the cleaning convex columns through the meshes to generate a meshing effect similar to a rack and pinion, the cleaning roller can continuously rotate, the cleaning convex columns on the cleaning roller can be sequentially inserted into the meshes of the corresponding conveying net chain, all the meshes are cleaned, the cleaning process does not need additional power drive, as long as the conveying net chain is in operation, the cleaning process is continuously carried out, and each operation of the conveying net chain is one circle, each mesh can be cleaned once, the cleaning effect is obvious, the efficiency is high, the smoothness of the meshes of the conveying net chain is ensured, the air permeability of the net chain conveyor is good, the contact area of hot air and materials is increased, and the heat exchange efficiency is high. The heat pump unit in the sludge drying equipment can ensure that moisture-containing air recovered from the drying unit can be dehumidified and dried in time through the evaporator, and then is heated by the condenser and is conveyed into the drying unit in time by the fan, the fan provides circulating operation power for the air serving as a drying medium, the condensate water tank can collect all moisture condensed from the moisture-containing air, the whole layout is reasonable, the sludge drying equipment adopts a closed treatment mode, no external energy (steam, heat conduction oil and hot air) needs to be introduced, no waste gas is discharged, no tail gas treatment system is needed, no waste heat is discharged, the energy is fully utilized, the energy consumption is the power consumption input by the compressor, and the energy-saving effect is obvious.

In the adopted coaxial double-auger temperature-control conveyor, an outer auger liquid-through joint and an inner auger liquid-through joint which are positioned at the discharge end are communicated with a hot air auxiliary output port of a heat pump unit, and an outer auger liquid-through joint and an inner auger liquid-through joint which are positioned at the feed end are communicated with a return air auxiliary suction inlet of the heat pump unit, so that hot wind energy generated in the heat pump unit circulates through an outer blade hollow cavity of an outer auger blade and an inner blade hollow cavity of an inner auger blade, the hot wind energy can exchange heat with sludge after water filtration conveyed by the inner auger through the inner auger blade, the temperature of the sludge after water filtration is improved in the conveying process, and the hot wind energy can insulate the dried sludge with certain temperature conveyed by the outer auger through the outer auger blade, thus the dried sludge after water filtration and the sludge which are hermetically conveyed by the coaxial double-auger temperature-control conveyor can enter sludge drying equipment at higher temperature, the sludge can be dried quickly, and the drying efficiency is improved; the heat pump unit provides a heating heat source for the sludge to be dried, and additional heating energy and equipment are not needed.

In the adopted water filtering conveyor, in a water filtering conveyor shell consisting of a fixed ring sheet, a movable ring sheet, a feeding fixed ring sheet and a discharging fixed ring sheet at two ends, the fixed ring sheet and the movable ring sheet are mutually spaced and attached to form a certain water filtering gap, so that water in water-containing sludge can pass through the water filtering gap in the conveying process, solid components in the sludge are conveyed from the water filtering conveyor shell to the discharging end and then are output from a discharging hopper, the movable ring sheet is driven by a movable ring sheet driving device to continuously move relative to the fixed ring sheet, the solid components in the sludge embedded between the two fixed ring sheets are ejected into an inner hole, the sludge cannot be blocked due to increase of embedded sludge, and the water filtering function can be realized and the blockage can be avoided in the conveying process; the sludge is conveyed by a conveying pressing plate which reciprocates in the working cavity, and the conveying pressing plate reciprocates once to finish the water filtering conveying of the sludge from the feeding end to the discharging end; the discharging end cover is tightly attached to the discharging fixing ring piece at the discharging end through the elastic device, so that the discharging opening in the discharging fixing ring piece can be opened to output the filtered sludge after the discharging end cover is pushed open by pushing the discharging opening to reach a certain pressure; the water filtered out in the sludge water filtering and conveying process is discharged from the water conveying pipe through the water collecting hopper, so that the cleaning of the conveying environment and the smooth proceeding of the water filtering and conveying process are ensured.

In the adopted scraper conveyor, the arrangement of the cleaning scraper can be arranged on the conveying scraper through the cleaning scraper connecting seat without influencing the original structure of the scraper conveyor, thereby being beneficial to the improvement of the existing scraper conveyor; the cleaning scraper keeps attaching to the side wall of the trough under the action of the elastic force of the spring, so that the cleaning scraper can clean the side wall of the trough more thoroughly, and under the condition that the side wall of the trough is firmly adhered to an adhered object, the resistance force borne by the cleaning scraper can also enable the cleaning scraper to overcome the elastic force of the spring to avoid temporarily, and the subsequent cleaning scrapers clean continuously to ensure the normal operation of the conveyor; the cleaning work of the cleaning scraper can be carried out in the running process of the scraper chain without additionally arranging a cleaning power device, and the cleaning work can be carried out simultaneously in the dried sludge conveying process to reduce the possibility of the dried sludge adhering to the side wall of the trough, so that the adhered matters on the side wall of the trough can be cleaned in time, and the normal running of the scraper chain is ensured.

Among the accuse temperature screw conveyer who adopts, the logical liquid joint that is located accuse temperature screw conveyer discharge end leads to with the comdenstion water export on the heat pump set, make in the heat pump set to the moisture-containing air of retrieving in the drying unit through the hollow spiral intracavity that the produced comdenstion water of evaporimeter dehumidification can enter into hollow structure's helical blade through leading to the liquid joint, the comdenstion water has lower temperature, can cool down the higher mummification mud of the temperature of accuse temperature screw conveyer airtight transport when carrying, be convenient for the production and processing of later process, its cooling process utilizes the comdenstion water realization of abandonment emission originally, need not extra temperature transmission power.

The sludge containing water is fed into a water filtering conveyor through a feed hopper of the water filtering conveyor, the water is filtered by a conveying press plate and conveyed to a discharge end, the water enters an inner auger feed inlet of a coaxial double-auger temperature-controlled conveyor from the discharge hopper, the outer auger feed inlet of the coaxial double-auger temperature-controlled conveyor inputs part of dried sludge output from a discharge port of a material distribution conveyor below a drying discharge port, the sludge after water filtering and the part of the dried sludge are simultaneously sealed and heated by the coaxial double-auger temperature-controlled conveyor according to a certain proportion and conveyed to the discharge end, and simultaneously enter a material mixer for mixing, so that the sludge to be dried and uniformly mixed into the sludge to be dried with proper water content is timely fed into a sludge drying device for drying treatment by a heat pump unit, the dried sludge is output from the drying discharge port to the material distribution conveyor, and a small part of the sludge is returned to the coaxial double-auger temperature-controlled conveyor by a discharge port of the material distribution conveyor, most of the dry mud is conveyed to a dry mud bin for temporary storage by a scraper conveyor and then is cooled and output by a temperature control screw conveyor.

The whole drying treatment conveying process can keep the meshes of the conveying net chain in the sludge drying equipment smooth, can also enable a water filtering conveyor to realize a water filtering function in the conveying process, can avoid blockage in the water filtering process, can enable the feeding conveying equipment of the sludge drying equipment to effectively control the temperature of each conveyed material while conveying different materials, can enable the scraper conveyor after the sludge drying equipment discharges materials to timely clean adhesive substances on the side wall of the material tank, and can also control the temperature of finally output dry mud; meanwhile, the whole drying treatment conveying line has the advantages of obvious energy-saving effect and high production efficiency.

In a preferred embodiment of the present invention, the cleaning convex columns on the cleaning roller are uniformly distributed and arranged in a plurality of rows along the circumferential direction, and the distance between two adjacent rows of cleaning convex columns corresponds to the distance between two adjacent rows of mesh holes along the length direction of the conveying net chain; the number and the positions of the cleaning convex columns in each row of cleaning convex columns correspond to the number and the positions of meshes in the width direction of the conveying net chain. By adopting the embodiment, each mesh on the conveying net chain can be ensured to be cleaned by the corresponding cleaning convex column.

The utility model discloses a another kind of preferred embodiment be equipped with the transition hopper between net chain conveyor's the discharge end and the adjacent net chain conveyor's in below feed end. By adopting the embodiment, the sludge subjected to drying treatment can be more accurately conveyed in place between two adjacent net chain conveyors.

The utility model discloses a still another preferred embodiment, outer auger blade includes outer auger main blade and outer auger auxiliary blade, and outer auger main blade periphery is sealed with outer auger auxiliary blade periphery and is linked to each other, and the interior periphery of outer auger main blade and the interior periphery of outer auger auxiliary blade all are sealed with the auger barrel and are linked to each other, form outer blade cavity between outer auger main blade, outer auger auxiliary blade and the auger barrel; the inner auger blade comprises an inner auger main blade and an inner auger auxiliary blade, the outer periphery of the inner auger main blade is hermetically connected with the outer periphery of the inner auger auxiliary blade, the inner periphery of the inner auger main blade and the inner periphery of the inner auger auxiliary blade are hermetically connected with an inner auger shaft, and an inner blade hollow cavity is formed among the inner auger main blade, the inner auger auxiliary blade and the inner auger shaft. By adopting the embodiment, the hollow structure of the outer auger blade and the hollow structure of the inner auger blade can be conveniently formed, the structure is simple, and the manufacture is convenient.

In a further preferred embodiment of the present invention, an annular groove is formed on the inner side surface of the outer auger end cover, a convex ring corresponding to the annular groove is formed on the outer auger blade end cover, sealing oil seals are respectively installed on the inner hole and the outer circle of the convex ring, and the convex ring is movably inserted into the annular groove through the sealing of the sealing oil seal; an annular groove is formed in the inner cavity of the inner auger end cover, a convex ring corresponding to the annular groove is arranged on the inner auger blade end cover, sealing oil seals are respectively arranged on the inner hole and the outer circle of the convex ring, and the convex ring is movably inserted into the annular groove in a sealing mode through the sealing oil seals. By adopting the embodiment, the annular groove arranged on the inner side surface of the outer auger end cover can conveniently form the outer auger liquid through cavity and is also conveniently and movably connected with the outer auger blade end cover through the corresponding convex ring in a sealing manner; the annular groove arranged in the inner cavity of the inner auger end cover can form a liquid through cavity of the inner auger conveniently and is also in sealing and movable connection with the inner auger blade end cover through the corresponding convex ring.

In another preferred embodiment of the present invention, four connecting holes are formed in the peripheries of the inner holes of the feeding fixed ring plate, the discharging fixed ring plate and the fixed ring plate, the diameter of each connecting hole corresponds to the diameter of the connecting rod, four waist-shaped holes are formed in the periphery of the inner hole of the movable ring plate, the positions of the waist-shaped holes correspond to the positions of the connecting holes, the width of each waist-shaped hole corresponds to the diameter of the connecting rod, the length direction of each waist-shaped hole is parallel to the left and right sides of the movable ring plate, and the connecting rods are inserted into the connecting holes and the waist-shaped holes; the driving device of the movable ring plate comprises an eccentric shaft, wherein the left side edge and the right side edge of the movable ring plate are provided with rectangular grooves, the eccentric shaft is arranged in the rectangular grooves, two ends of the eccentric shaft are respectively and rotatably supported on the feeding fixed ring plate and the discharging fixed ring plate through eccentric shaft supporting seats, and one end of the eccentric shaft is connected with a driving motor of the movable ring plate. By adopting the embodiment, the feeding fixed ring piece, the discharging fixed ring piece and the fixed ring piece can be well connected into a whole through the four connecting rods with the diameters corresponding to the connecting holes, the fixed ring piece cannot generate radial displacement, the stability of a working cavity is ensured, the movable ring piece can move in a certain range relative to the fixed ring piece along the length direction of the waist-shaped hole under the limitation of the connecting rods, and the movable ring piece can play a corresponding anti-blocking function; the eccentric shaft can be driven to rotate by the movable ring piece driving motor, so that the movable ring piece is driven to move up and down by the rectangular groove in the movable ring piece, the movable stroke of the movable ring piece is determined by the eccentricity of the eccentric shaft, the movable ring piece can continuously move, and blockage is avoided.

The utility model discloses still further preferred embodiment, carry drive arrangement to include the screw rod that links firmly mutually with carrying the clamp plate, the nut that matches with the screw rod rotates the support on the nut seat, and the nut seat is installed in drainage transport frame, and the nut is connected with carrying the driving motor transmission. By adopting the embodiment, the conveying pressing plate driving device is simple in structure and convenient to manufacture.

In a further preferred embodiment of the present invention, the elastic device comprises a torsion spring, the torsion spring is mounted on the discharging fixing ring plate through a torsion spring seat, one end of the torsion spring is adjustably fixed on the torsion spring seat, and the other end of the torsion spring is pressed on the discharging end cover; and a sealing ring is arranged on the inner side surface of the discharging end cover tightly attached to the outer side of the discharging fixed ring piece. By adopting the embodiment, the elastic device has a simple structure, can adapt to the opening and closing of the discharging end cover, can adjust the acting force of the elastic device on the discharging end cover, is convenient to use and adjust, can prevent the material from seeping out from the gap between the discharging end cover and the discharging fixed ring piece by the sealing ring arranged on the inner side surface of the discharging end cover, ensures the pressure in the material conveying process and ensures the water filtering function.

The utility model discloses another still further preferred embodiment, helical blade includes main blade and assists the blade, and main blade periphery links to each other with assisting the blade periphery is sealed, and main blade's interior periphery and the interior periphery of assisting the blade all link to each other with the screw axis is sealed, form hollow spiral chamber between main blade, the supplementary blade and the screw axis. By adopting the embodiment, the hollow structure of the helical blade can be conveniently formed, the structure is simple, and the manufacture is convenient.

The utility model discloses still a further preferred embodiment establish at the annular groove on the casing end cover medial surface be equipped with the bulge loop corresponding with the annular groove on the blade end cover, install the skeleton oil blanket on the hole of bulge loop and the excircle respectively, this bulge loop passes through the sealed activity of skeleton oil blanket and pegs graft in the annular groove. By adopting the embodiment, the annular groove arranged on the inner side surface of the end cover of the shell can conveniently form a liquid through cavity and is also conveniently and movably connected with the end cover of the blade through the corresponding convex ring in a sealing manner.

Drawings

The following describes the efficient intelligent sludge purification treatment production line in detail with reference to the accompanying drawings and specific examples.

FIG. 1 is a schematic structural view of a specific embodiment of the high-efficiency intelligent sludge purification treatment production line of the present invention;

FIG. 2 is a schematic illustration of the construction of the drainage conveyor of FIG. 1;

FIG. 3 is a schematic diagram of the construction of the drainage conveyor housing of the construction of FIG. 2;

FIG. 4 is a cross-sectional view taken at location A-A of the structure shown in FIG. 3;

FIG. 5 is an enlarged partial view of portion I of the structure of FIG. 2;

FIG. 6 is a schematic view of the coaxial double-auger temperature-controlled conveyor in the structure shown in FIG. 1;

FIG. 7 is a schematic structural view of an outer auger blade in the structure shown in FIG. 6;

FIG. 8 is a schematic view of the construction of the inner auger blade of the construction of FIG. 6;

FIG. 9 is an enlarged partial view of region II of the structure of FIG. 6;

FIG. 10 is a schematic view of the sludge drying apparatus of the configuration shown in FIG. 1;

FIG. 11 is an enlarged partial view of section III of the structure of FIG. 10;

FIG. 12 is a top view of FIG. 11;

FIG. 13 is a schematic illustration of the construction of the scraper conveyor of the construction shown in FIG. 1;

FIG. 14 is a view of a portion of the scraper chain and trough portion of the structure of FIG. 13 in the direction B;

FIG. 15 is a cross-sectional view taken at the point C-C in FIG. 14;

FIG. 16 is a schematic view of the temperature controlled screw conveyor of the construction of FIG. 1;

FIG. 17 is a schematic view of the construction of the feed screw of the construction of FIG. 16;

fig. 18 is an enlarged partial view of the IV site of the configuration of fig. 16.

In the figure: 1-a water filtering conveyor, 2-a coaxial double-auger temperature control conveyor, 3-a material distribution conveyor, 4-a material mixer, 5-a sludge drying device, 6-a scraper conveyor, 7-a temperature control screw conveyor and 8-a dry sludge bin.

101-water pipe, 102-screw, 103-water filtering conveying rack, 104-conveying driving device, 105-nut, 106-conveying driving motor, 107-nut seat, 108-water filtering conveying shell, 109-movable ring piece driving device, 110-feed hopper, 111-feeding fixed ring piece, 112-movable ring piece, 113-fixed ring piece, 114-conveying pressure plate, 115-water collecting hopper, 116-discharging fixed ring piece, 117-elastic device, 118-discharging end cover, 119-sealing ring, 120-discharging hopper, 121-movable ring piece driving motor, 122-eccentric shaft supporting seat, 123-eccentric shaft, 124-connecting rod, 125-connecting hole, 126-waist round hole, 127-rectangular groove, 128-torsion spring seat, 104-conveying driving device, 129-torsion spring.

201-base, 202-inner packing auger end cover, 203-inner packing auger liquid through joint, 204-inner packing auger liquid through cavity, 205-inner packing auger blade end cover, 206-inner packing auger communication hole, 207-inner packing auger feed inlet, 208-packing auger cylinder body, 209-packing auger casing, 210-outer packing auger feed inlet, 211-casing heat preservation layer, 212-outer packing auger, 213-outer packing auger blade, 214-inner packing auger, 215-inner packing auger blade, 216-inner packing auger shaft, 217-outer packing auger discharge port, 218-outer packing auger liquid through joint, 219-outer packing auger blade end cover, 220-outer packing auger communication hole, 221-outer packing auger liquid through cavity, 222-outer packing auger end cover, 223-sealing oil seal, 224-inner packing auger discharge port, 225-inner blade hollow cavity, 226-inner packing auger auxiliary blade hollow cavity, 227-inner auger main blade, 228-outer auger auxiliary blade, 229-outer blade hollow cavity and 230-outer auger main blade.

501-drying feed inlet, 502-drying machine set, 503-drying discharge outlet, 504-net chain conveyor, 505-return air collecting hopper, 506-hot air input hopper, 507-wind guide partition board, 508-cleaning roller, 509-transition hopper, 510-drying shell, 511-compressor, 512-heat pump set shell, 513-heat pump set, 514-hot air output port, 515-fan, 516-evaporator, 517-hot air auxiliary output port, 518-condenser, 519-return air suction port, 520-condensate tank, 521-return air auxiliary suction port, 522-expansion valve, 523-condensate water outlet, 524-conveying net chain, 525-mesh and 526-cleaning convex column.

601-trough, 602-scraper chain, 603-conveying scraper, 604-cleaning scraper connecting seat, 605-spring, 606-isolation cover, 607-cleaning scraper, 608-set screw, 609-connecting clamping groove, 610-cleaning scraper hinged support and 611-hinge pin.

701-casing end cover, 702-liquid passing joint, 703-communicating hole, 704-liquid passing cavity, 705-blade end cover, 706-casing, 707-conveying screw, 708-screw shaft, 709-screw blade, 710-insulating layer, 711-framework oil seal, 712-main blade, 713-auxiliary blade and 714-hollow screw cavity.

Detailed Description

In the efficient intelligent sludge purification treatment production line shown in fig. 1, a water filtration conveyor 1, a coaxial double-auger temperature control conveyor 2, a mixer 4, a sludge drying device 5, a material distribution conveyor 3, a scraper conveyor 6, a dry sludge bin 8 and a temperature control screw conveyor 7 are sequentially connected to form a sludge drying treatment conveying production line for conveying water-containing sludge from water filtration to sludge output after final drying.

Wherein, the water filtering conveyor 1 is shown in fig. 2, and comprises a feed hopper 110, the feed hopper 110 is installed on a water filtering conveyor shell 108, the water filtering conveyor shell 108 comprises a feed fixed ring sheet 111 for installing the feed hopper 110 and a discharge fixed ring sheet 116 positioned at an output end, a plurality of fixed ring sheets 113 and movable ring sheets 112 are alternately arranged between the feed fixed ring sheet 111 and the discharge fixed ring sheet 116, so that the water filtering conveyor shell 108 forms a hollow cylindrical shell member, referring to fig. 3 and 4, the fixed ring sheets 113 and the movable ring sheets 112 are rectangular ring sheets, the inner side surfaces of the feed fixed ring sheets 111, the inner side surfaces of the discharge fixed ring sheets 116 and the two side surfaces of the fixed ring sheets 113 are respectively attached to the side surfaces of the opposite movable ring sheets 112, the feed fixed ring sheets 111, the discharge fixed ring sheets 116 and the fixed ring sheets 113 are connected by a connecting rod 124 and nuts at the rod ends, the connecting rod 124 can adopt a structure similar to an axial bolt, the middle part is an optical axis, the length of the optical axis part ensures that the movable ring piece 112 is jointed with the adjacent member, has a proper water filtering gap, can move freely and is not pressed axially, as a preferred embodiment, four connecting holes 125 are arranged on the periphery of the inner holes of the feeding fixed ring piece 111, the discharging fixed ring piece 116 and the fixed ring piece 113, the diameter of the connecting hole 125 corresponds to that of the connecting rod 124, four waist-round holes 126 are arranged on the periphery of the inner hole of the movable ring plate 112, the positions of the waist-round holes 126 correspond to the positions of the connecting holes 125, the width of each waist-round hole 126 corresponds to the diameter of the connecting rod 124, the length direction of each waist-round hole 126 is parallel to the left side and the right side of the movable ring plate 112, and each connecting rod 124 is inserted into the corresponding connecting hole 125 and each waist-round hole 126, so that the connecting hole 125 and the connecting rod 24 are kept in a centering connection state, and the movable ring plate 112 can move up and down in the length range of the waist-round holes 126; the movable ring plate 112 is connected to the movable ring plate driving device 109. in a preferred embodiment, the movable ring plate driving device 109 includes an eccentric shaft 123, rectangular slots 127 are formed on left and right sides of the movable ring plate 112, the eccentric shaft 123 is installed in the rectangular slots 127, two ends of the eccentric shaft 123 are rotatably supported on the feeding fixed ring plate 111 and the discharging fixed ring plate 116 through an eccentric shaft supporting seat 122, respectively, and one end of the eccentric shaft 123 is connected to a movable ring plate driving motor 121.

The feeding fixed ring sheet 111, the discharging fixed ring sheet 116 and the inner holes of the fixed ring sheets 113 form a working cavity of the water filtering and conveying machine shell 108, the shape of the inner hole of the movable ring sheet 112 corresponds to the shape of the inner hole of the fixed ring sheet 113, the size is slightly larger, to ensure that the movable ring plate 112 does not interfere with the transport platen 114 in the working chamber during up and down movements, a conveying pressure plate 114 is arranged in the working cavity, the shape of the conveying pressure plate 114 corresponds to the shape of the working cavity, the conveying pressure plate 114 is driven by a conveying driving device 104 to reciprocate, the conveying driving device 104 comprises a screw 102 fixedly connected with the conveying pressure plate 114, the nut 105 matched with the screw 102 is rotatably supported on a nut seat 107, the nut seat 107 is arranged on the water filtering conveying frame 103, and the nut 105 is in transmission connection with a conveying driving motor 106 through a transmission mechanism such as a chain transmission pair, a gear transmission pair or a toothed belt transmission pair.

The discharging fixing ring piece 116 is hinged with a discharging end cover 118, the discharging end cover 118 is attached to the outer side of the discharging fixing ring piece 116 through an elastic device 117, referring to fig. 5, the elastic device 117 comprises a torsion spring 129, the torsion spring 129 is installed on the discharging fixing ring piece 116 through a torsion spring seat 128, one end of the torsion spring 129 is adjustably fixed on the torsion spring seat 128, and the other end of the torsion spring 129 presses on the discharging end cover 118; and a sealing ring 119 is arranged on the inner side surface of the discharging end cover 118, which is tightly attached to the outer side of the discharging fixing ring piece 116.

The feeding fixing ring sheet 111 and the discharging fixing ring sheet 116 are fixedly connected to the water filtration conveying frame 103, so that the water filtration conveying machine shell 108 is mounted and supported on the water filtration conveying machine frame 103, a water collecting hopper 115 is arranged in the water filtration conveying machine frame 103, an opening of the water collecting hopper 115 faces to the lower part of the water filtration conveying machine shell 108, and the water collecting hopper 115 is communicated with the water delivery pipe 101; a discharge hopper 120 is installed on the water filtering and conveying frame 103, and the discharge hopper 120 is positioned below the discharge fixing ring piece 116.

The coaxial double-auger temperature-control conveyor 2 is shown in fig. 6 and comprises an auger casing 209 fixedly connected on a base 201, a casing heat-insulating layer 211 is arranged on the periphery of the auger casing 209, an outer auger 212 is arranged in the auger casing 209, an outer auger blade 213 of the outer auger 212 is arranged on the periphery of an auger cylinder 208, outer auger end covers 222 are arranged at two ends of the auger casing 209, the auger cylinder 208 is movably inserted in the outer auger end covers 222 in a sealing manner, an outer auger feed inlet 210 and an outer auger discharge outlet 217 are respectively arranged at two ends of the auger casing 209, an inner auger 214 is also arranged in the auger cylinder 208, two ends of the auger cylinder 208 are movably connected with the inner auger end covers 202, inner auger end covers 202 at two ends are fixedly connected on the base 201, an inner auger feed inlet 207 and an inner auger discharge outlet 224 are respectively arranged on the side walls of the peripheries of the two inner auger end covers 202, an inner auger shaft 216 of the inner auger 214 is rotatably supported on the inner auger end covers 202, the outer auger 212 is in transmission connection with a driving motor through a transmission part fixedly connected on the auger cylinder 208, one end of the inner packing auger shaft 216 is connected with an output shaft of the driving motor, so that the outer packing auger 212 and the inner packing auger 214 are respectively in transmission connection with corresponding driving devices, the rotating speeds of the outer packing auger shaft and the inner packing auger shaft can be respectively adjusted, and the conveying speed of the outer packing auger shaft 216 and the conveying speed of the inner packing auger 214 can be controlled.

Referring to fig. 7 and 9, the outer auger blade 213 is of a hollow structure, the outer auger blade 213 comprises an outer auger main blade 230 and an outer auger auxiliary blade 228, the outer periphery of the outer auger main blade 230 is connected with the outer periphery of the outer auger auxiliary blade 228 in a welding and sealing manner, the inner periphery of the outer auger main blade 230 and the inner periphery of the outer auger auxiliary blade 228 are connected with the auger cylinder 208 in a welding and sealing manner, an outer blade hollow cavity 229 is formed between the outer auger main blade 230, the outer auger auxiliary blade 228 and the auger cylinder 208, outer auger blade end covers 219 are arranged at two ends of the outer auger blade 213 of the hollow structure, an outer auger communication hole 220 communicated with the outer blade hollow cavity 229 of the outer auger blade 213 is arranged on the outer auger blade end cover 219, the outer auger blade end cover 219 is connected with the outer auger main blade 230, the outer auger auxiliary blade 228 and the auger cylinder 208 in a welding and sealing manner, the outer auger blade end cover 219 is connected with the outer end cover 222 at the corresponding end of the auger housing 209 in a sealing and movable manner, as a preferred embodiment, an annular groove is arranged on the inner side surface of the outer auger end cover 222, a convex ring corresponding to the annular groove is arranged on the outer auger blade end cover 219, sealing oil seals 223 are respectively arranged on the inner hole and the outer circle of the convex ring, the convex ring is movably inserted into the annular groove in a sealing mode through the sealing oil seals 223, and the sealing oil seals 223 can adopt universal framework oil seals. An outer auger liquid through cavity 221 is formed between the outer auger blade end cover 219 and an outer auger end cover 222 at the end corresponding to the auger casing 209, an outer auger liquid through joint 218 is arranged on the outer auger end cover 222, and the outer auger liquid through joint 218 is communicated with the outer auger liquid through cavity 221.

Referring to fig. 8 and 9, the inner auger blade 215 on the inner auger 214 is of a hollow structure, the inner auger blade 215 includes an inner auger main blade 227 and an inner auger auxiliary blade 226, the outer periphery of the inner auger main blade 227 is hermetically connected with the outer periphery of the inner auger auxiliary blade 226, the inner periphery of the inner auger main blade 227 and the inner periphery of the inner auger auxiliary blade 226 are hermetically connected with the inner auger shaft 216, an inner blade hollow cavity 225 is formed between the inner auger main blade 227, the inner auger auxiliary blade 226 and the inner auger shaft 216, inner auger blade end covers 205 are arranged at two ends of the inner auger blade 215 of the hollow structure, an inner auger communication hole 206 communicated with the inner blade hollow cavity 225 of the inner auger blade 215 is arranged on the inner auger blade end cover 205, the inner auger blade end cover 205 is fixedly connected with the inner auger main blade 227, the inner auger auxiliary blade 226 and the inner auger shaft 216 by welding and sealing, the inner auger blade end cover 205 is hermetically and movably connected with the inner end cover 202 at the corresponding end of the auger cylinder 208, as a preferred embodiment, an annular groove is arranged in the inner cavity of the inner auger end cover 202, a convex ring corresponding to the annular groove is arranged on the inner auger blade end cover 205, sealing oil seals 223 are respectively arranged on the inner hole and the outer circle of the convex ring, the convex ring is movably inserted into the annular groove in a sealing manner through the sealing oil seals 223, the sealing oil seals 223 can adopt universal framework oil seals, and a bearing is further arranged in the inner hole of the convex ring on the inner auger blade end cover 205 at the tail end of the inner auger shaft 216, so that the tail end of the inner auger shaft 216 is supported by the inner auger end cover 202. An inner auger liquid through cavity 204 is formed between the inner auger blade end cover 205 and the inner auger end cover 202 at the end corresponding to the auger cylinder 208, an inner auger liquid through joint 203 is arranged on the inner auger end cover 202, and the inner auger liquid through joint 203 is communicated with the inner auger liquid through cavity 204.

The outer auger liquid-passing joint 218 and the inner auger liquid-passing joint 203 at the discharge end are communicated with a hot air auxiliary output port 517 of the heat pump unit 513 through air pipes, the outer auger liquid-passing joint 218 and the inner auger liquid-passing joint 203 at the feed end are communicated with a return air auxiliary suction port 521 of the heat pump unit 513 through air pipes, and the inner auger feed port 207 is communicated with the discharge hopper 120 of the water filtration conveyor 1.

Blendor 4 can choose the structure of the blendor as adopting in the utility model patent "high-efficient transport compounding machine group" that patent number is CN201821767332.2 for use, and blendor 4 is equipped with two compounding feed inlets, and two compounding feed inlets lead to with outer auger discharge gate 217 and interior auger discharge gate 224 on the coaxial two auger accuse temperature conveyer 2 respectively and link to each other, and the compounding discharge gate of blendor 4 leads to with the stoving feed inlet 501 of sludge drying equipment 5 and links to each other.

As shown in fig. 10, the sludge drying apparatus 5 includes a heat pump unit 513 and a dryer unit 502 connected to the heat pump unit 513, a mesh chain conveyor 504 runs in the dryer unit 502, the mesh chain conveyor 504 has at least three groups, four groups are shown in the figure, each mesh chain conveyor 504 is staggered up and down at intervals, the conveying directions of adjacent mesh chain conveyors 504 are opposite, a transition hopper 509 is arranged between the discharge end of the upper mesh chain conveyor 504 and the feed end of the lower adjacent mesh chain conveyor 504, the drying feed inlet 501 of the dryer unit 502 corresponds to the feed end of the uppermost mesh chain conveyor 504, and the drying discharge outlet 503 of the dryer unit 502 corresponds to the discharge end of the lowermost mesh chain conveyor 504.

A cleaning roller 508 is rotatably supported on the mesh chain conveyor 504, the cleaning roller 508 is positioned on the inner side of the discharge end of the mesh chain conveyor 504, referring to fig. 11 and 12, a plurality of cleaning convex columns 526 are arranged on the surface of the cleaning roller 508, the cleaning convex columns 526 on the cleaning roller 508 are uniformly distributed and arranged in a plurality of rows along the circumferential direction, and the distance between two adjacent rows of cleaning convex columns 526 corresponds to the distance between two adjacent rows of mesh holes 525 on the conveying mesh chain 524 along the length direction; the number and the positions of the cleaning convex columns 526 in each row of the cleaning convex columns 526 correspond to the number and the positions of the meshes 525 in the width direction of the conveying net chain 524, the cleaning convex columns 526 are inserted into the corresponding meshes 525 on the conveying net chain 524 in the net chain conveyor 504, and the cleaning rollers 508 are driven to rotate by the conveying net chain 524 through the meshes 525 and the cleaning convex columns 526.

A hot air input hopper 506 is arranged below a drying shell 510 of the drying unit 502, the hot air input hopper 506 is communicated with a hot air output port 514 of the heat pump unit 513, an air return collecting hopper 505 is arranged above the drying shell 510 of the drying unit 502, air guide partition plates 507 which enable air flow to be uniformly distributed are arranged in the hot air input hopper 506 and the air return collecting hopper 505, the air return collecting hopper 505 is communicated with an air return suction inlet 519 of the heat pump unit 513, and an opening of the hot air input hopper 506 and an opening of the air return collecting hopper 505 are opposite to the net chain conveyor 504.

The heat pump unit 513 comprises a heat pump unit shell 512, an evaporator 516, a compressor 511, an expansion valve 522, a condenser 518 and a fan 515, wherein the evaporator 516, the compressor 511, the expansion valve 522 and the condenser 518 form a refrigerant working loop, a condensed water tank 520 is arranged below the evaporator 516, an air return suction inlet 519 is arranged on the heat pump unit shell 512 and is opposite to the evaporator 516, the fan 515 is adjacent to the condenser 518, and a hot air outlet 514 is arranged on the heat pump unit shell 512 and is communicated with an air outlet of the fan 515; the return air auxiliary suction inlet 521 and the hot air auxiliary output 517 are both arranged on a heat pump unit shell 512 of the heat pump unit 513, the return air auxiliary suction inlet 521 is adjacent to the return air suction inlet 519, the hot air auxiliary output 517 is adjacent to the hot air output 514, and a condensed water outlet 523 communicated with the condensed water tank 520 is further arranged on the heat pump unit shell 512.

The material distributing conveyor 3 can be composed of a material distributing device in a pushing material distributing scraper conveyor set of the utility model with the patent number of CN201821767631.6, a material distributing driving device drives a material distributing block arranged in a material distributing box to move left and right, the materials to be distributed are respectively conveyed to two discharge holes, of course, other forms of material distributing and conveying device can be adopted, the feed inlet of the material distributing and conveying device 3 is communicated with the drying discharge outlet 503, one discharge outlet of the material distributing and conveying device 3 is communicated with the outer packing auger feed inlet 210 of the coaxial double packing auger temperature control conveyor 2, according to the layout of a production site, one discharge port of the material distribution conveyor 3 can be directly communicated with the outer auger feed port 210 of the coaxial double auger temperature control conveyor 2, a scraper conveyor or a temperature-controllable spiral conveyor can also be utilized for communication, and the other discharge port of the material distribution conveyor 3 is communicated with the feed port of the scraper conveyor 6.

As shown in fig. 13, the scraper conveyor 6 includes a trough 601 and a scraper chain 602, the scraper chain 602 is driven by a scraper conveyor motor through a scraper chain sprocket to run in the trough 601, conveying scrapers 603 are provided on the left and right sides of the scraper chain 602, see fig. 14 and 15, a cleaning scraper 607 is provided at the extended end of the conveying scraper 603 on the scraper chain 602, the cleaning scrapers 607 are provided at intervals on each conveying scraper 603 of the scraper chain 602, a cleaning scraper 607 can be provided at intervals of five to ten conveying scrapers 603, and the cleaning scrapers 607 are provided at the extended ends of the left and right conveying scrapers 603 at the same position in the length direction of the scraper chain 602; the cleaning scraper 607 is hinged on the cleaning scraper connecting seat 604, as a preferred embodiment, a cleaning scraper hinged support 610 is arranged on the cleaning scraper connecting seat 604, and the cleaning scraper 607 is hinged on the cleaning scraper hinged supports 610 at the upper end and the lower end of the cleaning scraper connecting seat 604 through a hinge pin 611; the cleaning scraper connecting seat 604 is connected with the conveying scraper 603, as a preferred embodiment, a connecting clamping groove 609 is arranged on the cleaning scraper connecting seat 604, the width of the connecting clamping groove 609 corresponds to the thickness of the conveying scraper 603, a set screw 608 is arranged on the side wall of the connecting clamping groove 609, so that the cleaning scraper connecting seat 604 is inserted and connected with the conveying scraper 603 through the clamping groove 609 and is firmly connected through the set screw 608, and the extending direction of the cleaning scraper 607 is the advancing direction of the scraper chain 602; a spring 605 is arranged between the cleaning scraper 607 and the cleaning scraper connecting seat 604, the extending end of the cleaning scraper 607 is attached to the side wall of the trough 601 through the spring 605, as a preferred embodiment, the spring 605 is a torsion spring, the torsion spring is sleeved on the lock chain pin 611, one extending end of the torsion spring is propped against the cleaning scraper connecting seat 604, the other extending end is clamped on the cleaning scraper 607, and the acting force of the torsion spring enables the cleaning scraper 607 to be outwards opened and attached to the side wall of the trough 601; an isolation cover 606 is arranged on the outer side of the spring 605, and the isolation cover 606 is arranged on a cleaning scraper 607; the discharge hole of the scraper conveyor 6 is communicated with a dry mud bin 8.

The dry mud bin 8 can be a conventional hopper-shaped container with a cover, and a discharge hole at the lower part of the dry mud bin 8 is communicated with a feed inlet of the temperature-controlled screw conveyor 7.

As shown in fig. 16, the temperature-controlled screw conveyor 7 includes a casing 706 and a conveying screw 707, an insulating layer 710 is disposed on the outer periphery of the casing 706, the conveying screw 707 includes a screw shaft 708 and a screw blade 709 disposed on the screw shaft 708, referring to fig. 17 and 18, the screw blade 709 is a hollow structure, the screw blade 709 includes a main blade 712 and an auxiliary blade 713, the outer periphery of the main blade 712 is hermetically connected to the outer periphery of the auxiliary blade 713 by welding, the inner periphery of the main blade 712 and the inner periphery of the auxiliary blade 713 are both hermetically connected to the screw shaft 708, a hollow screw cavity 714 is formed between the main blade 712, the auxiliary blade 713 and the screw shaft 708, blade end caps 705 are disposed at two ends of the hollow screw blade 709, a communication hole 703 communicated with the hollow screw cavity 714 of the screw blade 709 is disposed on the blade end caps 705, the blade end caps 705 are hermetically connected to the main blade 712, the auxiliary blade 713 and the screw shaft 708 by welding, the blade end cover 705 is connected with the casing end cover 701 at the corresponding end of the casing 706 in a sealing and movable manner, as a preferred embodiment, an annular groove is formed on the inner side surface of the casing end cover 701, a convex ring corresponding to the annular groove is arranged on the blade end cover 705, a framework oil seal 711 is respectively arranged on the inner hole and the outer circle of the convex ring, the convex ring is inserted into the annular groove in a sealing and movable manner through the framework oil seal 711, and a bearing is further arranged in the inner hole of the convex ring on the blade end cover 705 at the tail end of the screw shaft 708, so that the tail end of the screw shaft 708 is supported by the casing end cover 701. A liquid through cavity 704 is formed between the blade end cover 705 and the casing end cover 701 at the corresponding end of the casing 706, a liquid through joint 702 is arranged on the casing end cover 701, the liquid through joint 702 is communicated with the liquid through cavity 704, the liquid through joint 702 at the discharge end of the temperature-controlled screw conveyor 7 is communicated with a condensed water outlet 523 on the heat pump unit 513, according to the layout of a production field, the condensed water outlet 723 and the liquid through joint 702 can be directly connected through a pipeline or can be communicated through a pressurizing pump, and the liquid through joint 702 at the feed end of the temperature-controlled screw conveyor 7 can be directly discharged or returned to the liquid through joint 702 at the discharge end of the temperature-controlled screw conveyor 7 through the pressurizing pump for recycling.

The sludge containing water is fed into the water filtering conveyor 1 through the feed hopper 110 of the water filtering conveyor 1, the water is filtered by the conveying press plate 114, the water is conveyed to the discharge end, the water enters the inner auger feed inlet 207 of the coaxial double auger temperature control conveyor 2 from the discharge hopper 120, the outer auger feed inlet 210 of the coaxial double auger temperature control conveyor 2 inputs part of dried sludge output from a discharge port of the material distribution conveyor 3 below the drying discharge port 503, the sludge after water filtering and part of the dried sludge are simultaneously sealed and heated by the coaxial double auger temperature control conveyor 2 according to a certain proportion and conveyed to the discharge end, and simultaneously enter the material mixer 4 for mixing, so that the sludge to be dried, which is uniformly mixed into the sludge to be dried and has proper water content, is dried by the heat pump unit 513, the dried sludge is output from the drying discharge port 503 and enters the material distribution conveyor 3, except that a small part is returned from a discharge port of the material separating conveyor 3 and conveyed to the coaxial double-auger temperature control conveyor 2, the large part is conveyed to a dry sludge bin 8 by a scraper conveyor 6 for temporary storage, and then is cooled and output by a temperature control screw conveyor 7, thereby realizing the drying of the water-containing sludge.

In the whole process flow, the water filtering conveyor 1 can realize the water filtering function in the conveying process and can avoid the blockage in the water filtering process, the coaxial double-auger temperature control conveyor 2 can simultaneously convey the sludge after water filtering and the dried sludge for adjusting the water content of the sludge to be dried, and can effectively increase the temperature of the two conveyed materials by utilizing a heat source in the heat pump unit 513, so that the sludge to be dried can enter the sludge drying equipment at higher temperature, thereby improving the drying efficiency, having high temperature control efficiency and good energy-saving effect, the sludge drying equipment 5 can utilize the heat pump unit 513 to realize the environmental protection and energy saving of the sludge drying process, can keep smooth mesh 525 in the conveying net chain 524 and improve the drying efficiency, the scraper conveyor 6 can timely clear up the adhesive on the side wall of the material tank 601, ensure the efficient normal operation of the scraper chain 602, and the temperature control screw conveyor 7 can utilize the condensate water discarded in the heat pump unit 513 to control the temperature of the finally output dry sludge, the whole drying treatment conveying line has obvious energy-saving effect and high production efficiency.

While the preferred embodiments of the present invention have been illustrated and described, it is not intended to limit the invention to the particular embodiments shown, and modifications and variations are possible. Any improvement and change made on the basis of the basic principle of the present invention should be considered as falling within the protection scope of the present invention.

Claims

1. The utility model provides a high-efficient intelligent sludge purification treatment production line, includes sludge drying equipment (5), its characterized in that: the sludge drying equipment (5) comprises a heat pump unit (513) and a drying unit (502) communicated with the heat pump unit (513), wherein a net chain conveyor (504) runs in the drying unit (502), at least three groups of net chain conveyors (504) are arranged, each net chain conveyor (504) is vertically arranged at intervals in a staggered mode, the conveying directions of adjacent net chain conveyors (504) are opposite, a drying feed inlet (501) of the drying unit (502) corresponds to the feed end of the net chain conveyor (504) on the uppermost layer, and a drying discharge outlet (503) of the drying unit (502) corresponds to the discharge end of the net chain conveyor (504) on the lowermost layer; a cleaning roller (508) is rotatably supported on the net chain conveyor (504), the cleaning roller (508) is positioned on the inner side of the discharge end of the net chain conveyor (504), a plurality of cleaning convex columns (526) are arranged on the surface of the cleaning roller (508), the cleaning convex columns (526) are inserted into corresponding meshes (525) on a conveying net chain (524) in the net chain conveyor (504), and the cleaning roller (508) is driven to rotate by the conveying net chain (524) through the meshes (525) and the cleaning convex columns (526); a hot air input hopper (506) is arranged below a drying shell (510) of the drying unit (502), the hot air input hopper (506) is communicated with a hot air output port (514) of the heat pump unit (513), an air return collecting hopper (505) is arranged above the drying shell (510) of the drying unit (502), the air return collecting hopper (505) is communicated with an air return suction inlet (519) of the heat pump unit (513), and an opening of the hot air input hopper (506) and an opening of the air return collecting hopper (505) are opposite to the net chain conveyor (504); the heat pump unit (513) comprises a heat pump unit shell (512), an evaporator (516), a compressor (511), an expansion valve (522), a condenser (518) and a fan (515), wherein the evaporator (516), the compressor (511), the expansion valve (522) and the condenser (518) form a refrigerant working loop, a condensate water tank (520) is arranged below the evaporator (516), an air return suction inlet (519) is arranged on the heat pump unit shell (512) and is opposite to the evaporator (516), the fan (515) is adjacent to the condenser (518), and a hot air outlet (514) is arranged on the heat pump unit shell (512) and is communicated with an air outlet of the fan (515); a return air auxiliary suction inlet (521), a hot air auxiliary output port (517) and a condensed water outlet (523) communicated with a condensed water tank (520) are also arranged on a heat pump unit shell (512) of the heat pump unit (513);

the drying feed port (501) is communicated with a material mixing discharge port of the material mixing machine (4), the material mixing machine (4) is provided with two material mixing feed ports, and the two material mixing feed ports are respectively communicated with an outer auger discharge port (217) and an inner auger discharge port (224) on the coaxial double auger temperature control conveyor (2); the drying discharge port (503) is communicated with a feed port of the distributing conveyor (3), one discharge port of the distributing conveyor (3) is communicated with an outer auger feed port (210) of the coaxial double auger temperature control conveyor (2), and the other discharge port of the distributing conveyor (3) is communicated with a feed port of the scraper conveyor (6);

the coaxial double-auger temperature-control conveyor (2) comprises an auger casing (209) fixedly connected on a base (201), an outer auger (212) is arranged in the auger casing (209), outer auger blades (213) of the outer auger (212) are arranged at the periphery of an auger cylinder body (208), outer auger end covers (222) are arranged at the two ends of the auger casing (209), the auger cylinder body (208) is sealed and movably inserted in the outer auger end covers (222), outer auger feed inlets (210) and outer auger discharge outlets (217) are respectively arranged at the two ends of the auger casing (209), an inner auger (214) is also arranged in the auger cylinder body (208), the two ends of the auger cylinder body (208) are movably connected with the inner auger end covers (202), the inner auger end covers (202) are fixedly connected on the base (201), inner auger feed inlets (207) and inner auger discharge outlets (224) are respectively arranged on the peripheral side walls of the two inner auger end covers (202), an inner packing auger shaft (216) of the inner packing auger (214) is rotatably supported on the inner packing auger end cover (202), the outer packing auger (212) and the inner packing auger (214) are respectively in transmission connection with corresponding driving devices, the outer auger blade (213) is of a hollow structure, the two ends of the outer auger blade (213) of the hollow structure are provided with outer auger blade end covers (219), an outer auger communication hole (220) communicated with an outer blade hollow cavity (229) of an outer auger blade (213) is arranged on an outer auger blade end cover (219), the outer auger blade end cover (219) is in sealed movable connection with an outer auger end cover (222) at the end corresponding to the auger casing (209), an outer auger liquid through cavity (221) is formed between the outer auger blade end cover (219) and the outer auger end cover (222) at the end corresponding to the auger casing (209), an outer auger liquid through joint (218) is arranged on the outer auger end cover (222), the outer auger liquid-passing joint (218) is communicated with an outer auger liquid-passing cavity (221); the inner auger blade (215) on the inner auger (214) is of a hollow structure, inner auger blade end covers (205) are arranged at two ends of the inner auger blade (215) of the hollow structure, inner auger communication holes (206) communicated with the inner blade hollow cavity (225) of the inner auger blade (215) are formed in the inner auger blade end covers (205), the inner auger blade end covers (205) are movably connected with the inner auger end covers (202) at the corresponding ends of the auger cylinder body (208) in a sealing manner, inner auger liquid communication cavities (204) are formed between the inner auger blade end covers (205) and the inner auger end covers (202) at the corresponding ends of the auger cylinder body (208), inner auger liquid communication connectors (203) are arranged on the inner auger end covers (202), and the inner auger liquid communication connectors (203) are communicated with the inner auger liquid communication cavities (204); the outer auger liquid-passing joint (218) and the inner auger liquid-passing joint (203) at the discharge end are communicated with a hot air auxiliary output port (517) of the heat pump unit (513), and the outer auger liquid-passing joint (218) and the inner auger liquid-passing joint (203) at the feed end are communicated with a return air auxiliary suction port (521) of the heat pump unit (513); the feed inlet (207) of the inner auger is communicated with the discharge hopper (120) of the water filtration conveyor (1);

the water filtering conveyor (1) comprises a feed hopper (110), the feed hopper (110) is arranged on the water filtering conveyor shell (108), the water filtering and conveying machine shell (108) comprises a feeding fixed ring sheet (111) arranged on the feeding hopper (110) and a discharging fixed ring sheet (116) positioned at the output end, a plurality of fixed ring pieces (113) and movable ring pieces (112) are alternately arranged between the feeding fixed ring piece (111) and the discharging fixed ring piece (116), the inner side surface of the feeding fixed ring piece (111), the inner side surface of the discharging fixed ring piece (116) and the two side surfaces of the fixed ring pieces (113) are respectively attached to the side surfaces of the opposite movable ring pieces (112), the feeding fixed ring piece (111), the discharging fixed ring piece (116) and each fixed ring piece (113) are connected through a connecting rod (124), the movable ring pieces (112) are connected with a movable ring piece driving device (109), and the inner hole shapes of the movable ring pieces (112) correspond to the inner hole shapes of the fixed ring pieces (113); the feeding fixed ring piece (111), the discharging fixed ring piece (116) and the inner holes of all the fixed ring pieces (113) form a working cavity of the water filtering and conveying machine shell (108), a conveying pressing plate (114) is arranged in the working cavity, the shape of the conveying pressing plate (114) corresponds to the shape of the working cavity, and the conveying pressing plate (114) is driven by the conveying driving device (104) to reciprocate; a discharging end cover (118) is hinged on the discharging fixed ring piece (116), and the discharging end cover (118) is tightly attached to the outer side of the discharging fixed ring piece (116) through an elastic device (117); the feeding fixing ring sheet (111) and the discharging fixing ring sheet (116) are fixedly connected to the water filtering conveying rack (103), a water collecting hopper (115) is arranged on the water filtering conveying rack (103), the opening of the water collecting hopper (115) faces to the lower part of the water filtering conveying machine shell (108), and the water collecting hopper (115) is communicated with the water conveying pipe (101); the discharging hopper (120) is arranged below the discharging fixed ring piece (116);

the scraper conveyor (6) comprises a trough (601) and a scraper chain (602), conveying scrapers (603) are arranged on the left side and the right side of the scraper chain (602), the outward extending ends of the conveying scrapers (603) on the scraper chain (602) are provided with cleaning scrapers (607), the cleaning scrapers (607) are hinged to a cleaning scraper connecting seat (604), the cleaning scraper connecting seat (604) is connected with the conveying scrapers (603), the outward extending direction of the cleaning scrapers (607) is the advancing direction of the scraper chain (602), a spring (605) is arranged between the cleaning scrapers (607) and the cleaning scraper connecting seat (604), and the outward extending ends of the cleaning scrapers (607) are attached to the side wall of the trough (601) through the spring (605); a discharge hole of the scraper conveyor (6) is communicated with a dry mud bin (8);

the discharge hole of the dry sludge bin (8) is communicated with the feed inlet of the temperature-control screw conveyor (7), the temperature-control screw conveyor (7) comprises a machine shell (706) and a conveying screw (707), the conveying screw (707) comprises a screw shaft (708) and a screw blade (709) arranged on the screw shaft (708), the screw blade (709) is of a hollow structure, blade end covers (705) are arranged at two ends of the screw blade (709) of the hollow structure, a communicating hole (703) communicated with a hollow screw cavity (714) of the screw blade (709) is arranged on each blade end cover (705), the blade end covers (705) are in sealed movable connection with the machine shell end cover (701) at the corresponding end of the machine shell (706), a liquid communicating cavity (704) is formed between each blade end cover (705) and the machine shell end cover (701) at the corresponding end of the machine shell (706), and a liquid communicating joint (702) is arranged on each machine shell end cover (701), the liquid connection joint (702) is communicated with the liquid connection cavity (704), and the liquid connection joint (702) at the discharge end of the temperature control screw conveyor (7) is communicated with a condensed water outlet (523) on the heat pump unit (513).

2. The efficient intelligent sludge purification treatment production line according to claim 1, which is characterized in that: the cleaning convex columns (526) on the cleaning roller (508) are uniformly distributed and arranged in a plurality of rows along the circumferential direction, and the distance between every two adjacent rows of cleaning convex columns (526) corresponds to the distance between every two adjacent rows of meshes (525) of the conveying net chain (524) along the length direction; the number and the positions of the cleaning convex columns (526) in each row of cleaning convex columns (526) correspond to the number and the positions of the meshes (525) in the width direction of the conveying net chain (524).

3. The efficient intelligent sludge purification treatment production line according to claim 1, which is characterized in that: a transition hopper (509) is arranged between the discharge end of the net chain conveyor (504) and the feed end of the adjacent net chain conveyor (504) below.

4. The efficient intelligent sludge purification treatment production line according to claim 1, which is characterized in that: the outer auger blade (213) comprises an outer auger main blade (230) and an outer auger auxiliary blade (228), the outer periphery of the outer auger main blade (230) is hermetically connected with the outer periphery of the outer auger auxiliary blade (228), the inner periphery of the outer auger main blade (230) and the inner periphery of the outer auger auxiliary blade (228) are hermetically connected with the auger cylinder (208), and an outer blade hollow cavity (229) is formed among the outer auger main blade (230), the outer auger auxiliary blade (228) and the auger cylinder (208); the inner packing auger blade (215) comprises an inner packing auger main blade (227) and an inner packing auger auxiliary blade (226), the outer periphery of the inner packing auger main blade (227) is hermetically connected with the outer periphery of the inner packing auger auxiliary blade (226), the inner periphery of the inner packing auger main blade (227) and the inner periphery of the inner packing auger auxiliary blade (226) are hermetically connected with an inner packing auger shaft (216), and an inner blade hollow cavity (225) is formed among the inner packing auger main blade (227), the inner packing auger auxiliary blade (226) and the inner packing auger shaft (216).

5. The efficient intelligent sludge purification treatment production line according to claim 1, which is characterized in that: an annular groove is formed in the inner side face of the outer auger end cover (222), a convex ring corresponding to the annular groove is arranged on the outer auger blade end cover (219), sealing oil seals (223) are respectively arranged on an inner hole and an outer circle of the convex ring, and the convex ring is movably inserted into the annular groove in a sealing mode through the sealing oil seals (223); an annular groove is formed in an inner cavity of the inner auger end cover (202), a convex ring corresponding to the annular groove is arranged on the inner auger blade end cover (205), sealing oil seals (223) are respectively arranged on an inner hole and an outer circle of the convex ring, and the convex ring is movably inserted into the annular groove in a sealing mode through the sealing oil seals (223).

6. The efficient intelligent sludge purification treatment production line according to claim 1, which is characterized in that: four connecting holes (125) are formed in the peripheries of inner holes of the feeding fixed ring piece (111), the discharging fixed ring piece (116) and the fixed ring piece (113), the diameter of each connecting hole (125) corresponds to the diameter of the connecting rod (124), four waist circular holes (126) are formed in the periphery of the inner hole of the movable ring piece (112), the positions of the waist circular holes (126) correspond to the positions of the connecting holes (125), the width of each waist circular hole (126) corresponds to the diameter of the connecting rod (124), the length direction of each waist circular hole (126) is parallel to the left side edge and the right side edge of the movable ring piece (112), and the connecting rods (124) are inserted into the connecting holes (125) and the waist circular holes (126); the movable ring piece driving device (109) comprises an eccentric shaft (123), a rectangular groove (127) is formed in the left side edge and the right side edge of the movable ring piece (112), the eccentric shaft (123) is installed in the rectangular groove (127), two ends of the eccentric shaft (123) are rotatably supported on the feeding fixed ring piece (111) and the discharging fixed ring piece (116) through eccentric shaft supporting seats (122), and one end of the eccentric shaft (123) is connected with a movable ring piece driving motor (121).

7. The efficient intelligent sludge purification treatment production line according to claim 1, which is characterized in that: the conveying driving device (104) comprises a screw rod (102) fixedly connected with a conveying pressing plate (114), a nut (105) matched with the screw rod (102) is rotatably supported on a nut seat (107), the nut seat (107) is installed on the water filtering conveying rack (103), and the nut (105) is in transmission connection with a conveying driving motor (106).

8. The efficient intelligent sludge purification treatment production line according to claim 1, which is characterized in that: the elastic device (117) comprises a torsion spring (129), the torsion spring (129) is installed on the discharging fixing ring piece (116) through a torsion spring seat (128), one end of the torsion spring (129) is adjustably fixed on the torsion spring seat (128), and the other end of the torsion spring (129) is pressed on the discharging end cover (118); and a sealing ring (119) is arranged on the inner side surface of the discharging end cover (118) which is tightly attached to the outer side of the discharging fixing ring piece (116).

9. The efficient intelligent sludge purification treatment production line according to claim 1, which is characterized in that: the spiral blade (709) comprises a main blade (712) and an auxiliary blade (713), the outer periphery of the main blade (712) is hermetically connected with the outer periphery of the auxiliary blade (713), the inner periphery of the main blade (712) and the inner periphery of the auxiliary blade (713) are hermetically connected with the spiral shaft (708), and a hollow spiral cavity (714) is formed among the main blade (712), the auxiliary blade (713) and the spiral shaft (708).

10. The efficient intelligent sludge purification treatment production line according to claim 1, which is characterized in that: the inner side surface of the shell end cover (701) is provided with an annular groove, the blade end cover (705) is provided with a convex ring corresponding to the annular groove, the inner hole and the outer circle of the convex ring are respectively provided with a framework oil seal (711), and the convex ring is movably inserted into the annular groove in a sealing mode through the framework oil seal (711).