CN106927650B - Portable canal desilting sludge treatment system - Google Patents

Abstract

The invention belongs to the technical field of municipal sludge treatment, and particularly relates to a movable pipe duct desilting sludge treatment system. The treatment system comprises a flat car, and a vacuum automatic mud suction unit, an air pressure automatic mud discharge unit, a mud vibration screening unit, a sand and stone classification washing unit, a washing liquid recovery treatment unit and a whole system program operation monitoring unit which are arranged on the flat car. The invention has the beneficial effects that: the treatment system can treat the sludge generated by regional dispersion into municipal waste, organic impurities, sand and tail water on site, thereby realizing the reduction and harmless treatment of the sludge in a sludge production place.

Description

Portable canal desilting sludge treatment system

Technical Field

The invention belongs to the technical field of environment-friendly municipal sludge treatment, and particularly relates to urban drainage

A movable treatment system for pipeline dredging sludge and black and odorous water dredging sludge.

Background

The drainage pipeline is an important component of the urban drainage system, bears the functions of collecting and conveying urban domestic sewage, industrial wastewater and rainwater, and is one of important urban infrastructures for guaranteeing normal production, life and flood control of cities.

The Chinese drainage system is designed by mainly using a shallow pipe network system in the former Soviet Union, and only individual cities such as local urban areas of Qingdao adopt European underground gallery systems. Because the former Su Union storm intensity in the northern temperate and cold regions of the continental Eurasia is low, the urban drainage system begins with shallow-buried and small-diameter drainage pipelines with relatively low manufacturing cost.

Most of China in the east of the continental Eurasia is covered by the east Asia monsoon, the intensity of rainstorm in summer is high, and the shallow buried drainage pipeline has the limitations of low inherent gradient and small pipe diameter, so that the urban drainage capacity and the capability of resisting rainstorm flood are limited.

Domestic sewage, rainwater or industrial sewage inevitably flows into a sewage pipeline, a rainwater pipeline or a rainwater and sewage mixed flow pipeline and enters the pipeline together with a certain amount of domestic garbage, kitchen garbage, ground silt or industrial waste residues, accumulation or blockage occurs in the pipeline, and the effective conveying capacity of the pipeline is reduced.

The sewage in the pipeline is seriously blocked, the sewage can overflow from the inspection well cover, and the foul smell accompanied by the sewage flooding influences the life and work of surrounding residents; in a rainy day, silt accumulated in the pipeline can enter a river channel along with rainwater, so that water body pollution is caused, and even urban waterlogging is caused when the blockage is serious. In the coming years, along with the acceleration of the urbanization process, the construction and maintenance of drainage pipe networks are relatively lagged, the frequency and the damage degree of urban waterlogging in summer are increased year by year, and serious influence is brought to urban production, life and property safety of people.

Routine maintenance and management of drainage pipelines includes two aspects:

1. the urban drainage pipeline is patrolled, repaired and dredged, so that the normal smoothness of a pipe network is guaranteed;

2. the dredging sludge of the pipeline is cleaned and treated, and secondary pollution sources are avoided.

In the former, most cities are equipped with professional pipeline maintenance construction teams, so that the pipeline blockage rate is basically lower than 20%, and the normal smoothness of pipelines is guaranteed; in the latter case, the disposal of the dredging sludge fished out from the pipeline is still basically in the states of original airing and disordered management.

Currently, the current situation of pipeline dredging sludge disposal is:

1. airing in situ

The dredged sludge manually dredged from the inspection well has high water content and cannot be transported for a long distance, and the dredged sludge is basically transported to a relatively remote area of a city by a human-powered vehicle, an electric tricycle or a small-sized sludge automobile and is discharged on site. The method directly causes secondary pollution in urban areas, has the spread of odor and toxic germs emitted by concealed sludge, directly harms the daily life, physical and mental health of nearby residents, and is also the main reason for complaints caused by sludge disturbing residents and increase of group visiting events in recent years.

2. Sunning in the outskirts

The water content of the desilting sludge fished by the special dredging machine from the inspection well is lower than that of the manual dredging, but the landfill requirement of a sludge landfill can not be met. Therefore, most of the sludge is transported to the open space of the suburb of the city by a large-scale sludge truck or ship for natural airing, and finally, the soil is covered on the site for greening or the sludge is transported to a municipal sludge landfill. According to the method, a large amount of desilting sludge is transported to the suburb in a long distance, on one hand, dripping leakage and odor pollution are generated in the transportation process to pollute the road surface and the surrounding environment; on the other hand, the desilting sludge is piled up in the open air without sanitary treatment, heavy metals in the sludge permeate into farmlands, so that the safety of agricultural production and underground water resources are seriously threatened, the serious secondary pollution is caused by large-area diffusion of malodorous gas, and a large amount of land resources are wasted.

3. Centralized disposal in urban area

And (4) building a desilting sludge treatment station in the urban area. And (4) intensively transporting the sludge which is fished out in the peripheral local area to a treatment station by a special vehicle, and treating the desilting sludge into a large amount of municipal refuse, organic impurities, gravels and residual organic tail water. The garbage and the organic impurities are uniformly transported to a garbage landfill site for landfill, the sandstone building materials are utilized or buried, and the residual organic tail water is discharged into a municipal underground pipeline and flows into a sewage treatment plant for uniform treatment. The method has the following disadvantages:

⑴ the processing station relates to the construction of land acquisition, capital construction, electromechanical equipment installation and operation, and the construction of access roads, and the like, and the investment is high once.

⑵ service radius is limited, because the desilting sludge has complex components and high water content, and is not suitable for long-distance transportation, the service radius of the treatment station is limited to a certain extent, for example, the service radius of the Shanghai Pudong treatment station is only 9 km.. Beijing Qinghe treatment station has a designed treatment capacity of 100t/d, and only 50-60 t/d is actually treated every day, and no sufficient amount of sludge is transported through the ditch.

⑶ the processing station is difficult to select the site, and the processing station site is difficult to be implemented in urban areas, especially old urban areas, taking the processing station in the Haihong district as an example, the trial operation is established in 2013, and the social harmony and instability factors are caused due to noise, odor and the like, so that the group visit events are caused.

⑷ the residual organic tail water in the treatment station is discharged into the underground pipe network for fixation, and is easy to block the pipeline at the place, such as the tail water discharged during the trial run of the treatment station in the iridescence area blocks the underground pipeline, and the tail water discharged by the Guangdong branch is blocked to the Wen waterway, such as the Pudong treatment station discharges the tail water containing particulate matter below 0.2mm, although depending on the high-tech No. 2 sewage pump station, the problem of precipitation and blockage often occurs.

Disclosure of Invention

According to the characteristics of the dispersed desilting sludge analyzed by the background technology, the technical problem in the background technology is solved, and the invention provides a movable pipe canal desilting sludge treatment system. The sludge treatment system can treat the sludge generated by regional dispersion into municipal waste, organic impurities, sand and tail water on site, thereby realizing the reduction and harmless treatment of the sludge in a sludge production place.

The technical scheme of the invention is specifically introduced as follows.

The invention provides a movable pipe canal desilting sludge treatment system, which comprises a flat car and a device

The system comprises a vacuum automatic mud sucking unit, an air pressure automatic mud discharging unit, a mud vibration screening unit, a sand grading washing unit, a washing liquid recycling unit and a whole system program operation monitoring unit which are arranged on a flat car; wherein:

the vacuum automatic sludge suction unit is used for sucking the dredging sludge of the pipe duct;

the pneumatic automatic sludge discharge unit is used for discharging the dredging sludge of the pipe canal sucked by the vacuum automatic sludge suction unit and sending the dredging sludge to the sludge vibration screening unit;

the sludge vibration screening unit is used for separating a large amount of domestic garbage from the sludge and sending the residual body sludge to the sand grading washing unit;

the sand and stone grading washing unit is used for separating coarse sand and stone and organic matters from the residual sludge

Sundries; the fine sand and stone enter a washing liquid recovery processing unit along with water;

the washing liquid recovery processing unit is used for separating fine sand and purified water;

the whole system program operation monitoring unit comprises a P L C program control cabinet and a power distribution cabinet and is used for carrying out preset program control or manual control on the whole system and realizing automatic operation of the system under the monitoring of a monitor meter and a sensor.

In the invention, the vacuum automatic mud sucking unit comprises a universal mechanical arm, a vacuum pump, a steam-water separator and two mud sucking units

A sludge storage tank; a mud suction pipeline is arranged on the universal mechanical arm, an electric control valve is arranged on the mud suction pipeline, and two ends of the mud suction pipeline are respectively connected with a pipe channel and a mud storage tank; the vacuum pump is connected with the steam-water separator, the steam-water separator is respectively connected with the two sludge storage tanks through vacuum pipelines, and the vacuum pipelines at the inlets of the two sludge storage tanks are respectively provided with an electric control valve.

In the invention, the pneumatic automatic sludge discharge unit comprises an air compressor and an air storage tank; the air compressor is connected with the air storage tank, the air storage tank is respectively connected with an air inlet at the top and an air inlet at the lower part of the sludge storage tank through a compressed air pipeline, and an electric control valve is arranged at an outlet at the bottom of the sludge storage tank; the bottom outlet of the sludge storage tank is connected with the sludge vibration screening unit through a sludge conveying pipeline.

In the invention, the sludge vibration screening unit comprises a double-layer vibration screen, a clear water spraying pipeline, a water pump, conveying equipment and a garbage storage barrel; the double-layer vibrating screen is provided with an upper double-layer screen surface and a lower double-layer screen surface, clear water spraying pipelines are oppositely arranged above and below the upper layer screen surface, and the clear water spraying pipelines are connected with the clear water tank; the discharge port on the upper layer of the double-layer vibrating screen is connected with the garbage storage barrel through a conveying device, and the discharge port on the lower layer of the double-layer vibrating screen is connected with the gravel grading washing unit. The output end below the lower layer screen surface of the double-layer vibrating screen is connected with the pit through a pipeline.

In the invention, the sand and stone grading and washing unit comprises a hydraulic sand and stone grading and washing machine, a conveying device, a coarse sand and stone storage barrel, an organic impurity vibration screening machine and an organic impurity storage barrel; the bottom of the hydraulic sand and stone grading washing machine is sequentially connected with a static dehydration device, a conveying device and a coarse sand and stone storage barrel through pipelines; the top of the hydraulic sand and stone grading washing machine is connected with an organic sundries vibrating screening machine, and a screen surface material outlet of the organic sundries vibrating screening machine is connected with an organic sundries storage barrel through conveying equipment.

In the invention, the washing liquid recovery processing unit comprises a centrifugal dehydrator, a pipeline pump, a clear water tank, a detergent storage tank, a detergent pump and a physical and chemical washer; the detergent storage tank is connected with the physical and chemical washer through a pipeline, and a detergent pump is connected to the pipeline; the output end of the organic sundries vibrating screening machine below the screen surface is sequentially connected with a physical chemical washer and a centrifugal dehydrator through pipelines, an electric control valve is arranged at the inlet of the centrifugal dehydrator, the liquid outlet of the centrifugal dehydrator is connected with a clear water tank through a return pipeline, and a pipeline pump is arranged on the return pipeline; the discharge port of the centrifugal dehydrator is connected with the fine sand storage barrel through a conveying device.

In the invention, the washing liquid recovery processing unit comprises a slurry pump, a primary cyclone, a secondary cyclone, a centrifugal dehydrator, a pipeline pump and a clean water tank; the lower output end of the screen surface of the organic sundries vibrating screening machine is respectively connected with the primary cyclone and the secondary cyclone through a water screening pipeline, and a slurry pump and an electric control valve are arranged on the pipeline; the bottoms of the first-stage cyclone and the second-stage cyclone are respectively connected with a centrifugal dehydrator through pipelines; the top of the first-stage cyclone and the top of the second-stage cyclone are respectively connected with the inspection well through pipelines, the liquid outlet of the centrifugal dehydrator is connected with the clear water tank through a return pipeline, and the discharge port of the centrifugal dehydrator is connected with the fine sand storage barrel through a conveying device.

In the invention, the washing liquid recovery processing unit comprises a centrifugal dehydrator, a pipeline pump, a clear water tank and a sand storage barrel; replacing a coarse gravel storage barrel in the gravel grading washing unit with a gravel storage barrel; organic debris shale shaker bottom output end is continuous with the compounding bucket through pipeline and automatically controlled valve, and compounding bottom of the drum portion is connected with centrifugal dehydrator feed inlet, and the centrifugal dehydrator liquid outlet links to each other through return line and clear water tank, and the centrifugal dehydrator discharge gate links to each other through conveying equipment and grit storage bucket.

In the invention, the conveying equipment consists of a chute and a spiral conveyor connected with the chute.

In the invention, water of a clear water spraying pipeline in the sludge vibration screening unit and water of the sand and stone grading washing unit are provided by a clear water tank.

In the invention, the system power can be provided by a diesel generator arranged on the flat car, or can be provided by the flat car after being transformed or directly externally connected with the field power.

The invention can overcome the technical problems of energy waste and environment pollution caused by the fact that a large-volume sludge storage tank on the traditional sewage suction truck transports high-water-content sludge to pass through an urban area, and is suitable for treating sludge in a pipe duct and the sludge obtained by dredging black and odorous water. Compared with the prior art, the invention has the following advantages:

the movable treatment vehicle treats the sludge into a large amount of domestic garbage, organic impurities, coarse sand, fine sand and organic tail water in a sludge production place. And returning the organic tail water to the inspection well and flowing to a professional sewage treatment plant for harmless treatment. The household garbage, the organic sundries and the sand and stones are respectively stored in special barrel containers, and the household garbage or the organic sundries are collected by a professional transport vehicle and then respectively sent to a garbage incineration plant or a landfill; the sand and stone materials are collected by a professional transport vehicle and then sent to a building material factory or a landfill factory; the problems of land resource occupation of a sludge pond and odor pollution can be avoided by establishing the black and odorous water body desilting sludge.

Drawings

FIG. 1 is a general structure diagram of a vehicle-mounted mobile desilting sludge treatment system.

FIG. 2 is the desilting sludge treatment system of example 1.

FIG. 3 shows a sludge treatment system according to example 2.

FIG. 4 is a desilting sludge treatment system of example 3.

Fig. 5 is a schematic view of the opening operation of the vacuum automatic mud suction universal mechanical arm.

The device comprises a 1, 2-mud storage tank, a 3-steam-water separation tank, a 4-vacuum pump, a 5-double-layer vibrating screen, a 6, 9, 13, 15-screw conveyor, a 7-hydraulic sand and stone grading washing machine, an 8-organic impurity vibrating screening machine, a 10-garbage storage barrel, an 11-centrifugal dehydrator, a 12-organic impurity storage barrel, a 14-fine sand and stone storage barrel, a 16-coarse sand and stone storage barrel, a 17-pipeline pump, an 18-water pump, a 19-clear water tank, a 20, 21-cellar well, a 22-carriage, a 23, 24-clear water spraying pipeline, a 25-air storage tank, a 26-air compressor, a 27-diesel generator, a 28-flat car, a 29-vacuum automatic mud sucking unit, a 30-air pressure automatic mud discharging unit, a 31-sludge vibrating screening unit, a 32-sand and stone grading washing unit, a 33-cleaning solution recycling processing unit, a 34-full system program operation monitoring unit, a 35-universal mechanical arm, a 36-vacuum pipeline, a 37-compressed air pipeline, a 38-sludge conveying pipeline, a 39, a 40, a 47-organic cleaning solution pipeline, a 19-water distribution cabinet, a 19-concrete pump, a 40-overflow tank, a 54-40-concrete pump, a concrete pump.

Detailed Description

The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and examples.

Example 1

As shown in fig. 1 and 2, the onboard mobile pipe dredging sludge treatment system is integrated on a flat car 28. The following systems are sequentially arranged from the tail end to the head end of the vehicle: the device comprises a vacuum automatic mud suction unit 29, an air pressure automatic mud discharge unit 30, a mud vibration screening unit 31, a sand grading washing unit 32, a washing liquid recycling processing unit 33 and a whole system program operation monitoring unit 34.

⑴ vacuum automatic mud suction unit 29, including universal mechanical arm 35, mud storage tank 1,2, vacuum pipe 36, steam-water separation tank 3 and vacuum pump 4. the universal mechanical arm 35 is installed with mud suction pipe, the mud suction pipe is installed with electric control valves F4, F5, one end of mud suction pipe is connected with mud storage tank 1,2, the other end is inserted into the box 22 with mud or into the inspection shaft 21 with collected mud, the vacuum pump 4 is started, the mud storage tank 1,2 is alternatively pumped into vacuum negative pressure by steam-water separation tank 3, vacuum pipe 36 and controlling the electric control valves F3 and F7 on the vacuum pipe 36 to open and close, and then dredged mud is alternatively sucked into mud storage tank 1,2, the retraction state of universal mechanical arm 35 is shown in figure 1, the opening state of universal mechanical arm 35 is shown in figure 5 when working;

⑵ an air pressure automatic mud discharging unit 30, which comprises an air compressor 26, an air storage tank 25, a compressed air pipeline 37, an electric control valve F6, F8 and F11, a stop valve F9, a pressure reducing valve F10 and a mud conveying pipeline 38. the air compressor 26 is started, compressed air passes through the air storage tank 25, the compressed air pipeline 37, the electric control valve F6 and F8 are opened and closed, the compressed air is alternately sent into the mud storage tanks 1 and 2, then the mud in the mud storage tanks 1 and 2 is alternately sent to the mud vibration screening unit 31, and the electric control valve F11 is opened and closed to blow up the mud deposited at the bottoms of the mud storage tanks 1 and 2, so that the mud is convenient to discharge.

⑶ sludge vibration screening unit 31, including double-deck shale shaker 5, clear water spray pipe way 23 and 24, water pump 18 and chute 39, screw conveyer 6 and garbage storage bucket 10. double-deck shale shaker 5 sets up two-layer screen surface, and the upper screen surface is the round hole flat screen surface, sieve pore diameter 8~12mm, and the lower floor screen surface is 200 meshes or 325 meshes stainless steel welded screen cloth, the bulk domestic waste that the upper screen surface was sieved washes clean through clear water spray pipe way 23 and 24 that the lower floor set up on the screen surface, falls into screw conveyer 6 through chute 39 that the double-deck shale shaker 5 discharge end set up, and discharges into garbage storage bucket 10 again, the material on the screen surface of lower floor flows into grit classification washing unit 32 through the pipeline 45 by oneself, the organic tail water under the screen surface of lower floor flows back in inspection shaft 20 through pipeline 46 by oneself after collecting, finally flows to sewage treatment plant and does the professional innoxious processing.

⑷ gravel classification washing unit 32, including hydraulic sand classification washing machine 7, chute 40, screw conveyor 9, 15, coarse sand storage barrel 16, organic sundries pipeline 41, organic sundries vibration screening machine 8 and organic sundries storage barrel 12. the material from the lower layer screen surface of the double-layer vibration screen 5 enters the hydraulic sand classification washing machine 7 through pipeline 45, the classification particle size is about 0.1-2 mm, coarse sand larger than 0.1-2 mm sinks into the lower part of the hydraulic sand classification washing machine 7, high pressure clear water is fed through the pipeline 52 to form coarse sand liquid-solid fluidized bed, organic fine mud adhered on the sand is fully washed, then, the washed coarse sand is sent to the chute 40 through static dehydration device attached to the hydraulic sand classification washing agent 7, and falls into the screw conveyor 15, then discharged into the coarse sand storage barrel 16, organic sundries floating on the upper water surface of the classification washing machine and fine sand of 0.1-2 mm, the overflow weir is pushed by a large amount of washing water filled into the screen, the overflow water, the organic sundries classification washing machine 41 enters the organic sand classification screening machine 8, the organic sand liquid-solid fluidized bed is set as a spiral screen 12, the organic sand liquid-solid fluidized bed is set to be capable of being welded into the sieve, the organic sand screen 12, the organic sand is set as the organic sand 2mm, the organic sand is set as the organic sand 2, the organic sand is set to be welded into the.

⑸ washing liquid recycling unit 33, includes organic sundries vibrating screen 8 screen drain pipe 42, electric control valve F14, centrifugal dehydrator 11, return pipe 43, pipe pump 17, clean water tank 19, detergent storage tank 48, detergent pump 49, detergent pipe 50 and physical chemical scrubber 51. clean water tank 19 is provided with overflow pipe 44, organic sundries vibrating screen drain water flows into physical chemical scrubber 51 through screen drain pipe 42, enters centrifugal dehydrator 11 through valve F14 for solid-liquid separation, centrifugal liquid returns to clean water tank 19 through return pipe 43 and pipe pump 17 for reuse, fine sand and stone separated by centrifugal dehydrator 11 falls into screw conveyor 13 through chute, and then discharges into fine sand and stone storage barrel 14. detergent pump 49 automatically supplements the detergent in detergent storage tank 48 into physical chemical scrubber 51 through detergent pipe 50.

⑹ full system program operation monitoring unit 34, including P L C program control cabinet 57, switch board 58, electric control valve, monitor meter and sensor, to the equipment of vehicle work system and electric control valve, to realize the orderly, accurate and safe operation of the system sludge pipeline, water channel, gas channel, hydraulic station and electric circuit.

A diesel generator 27 is also included in the system. The diesel generator 27 is provided to power the system independent of the vehicle engine without modification to the dedicated vehicle. In addition, system power may also be provided by the flat car 28 after being modified or directly externally connected to the field power.

Example 2

Fig. 3 shows a schematic structural diagram of example 2, which is different from example 1 in that the washing liquid recovery processing unit 33 includes a screen water pipe 42 of the organic impurity vibrating screen 8, a slurry pump 56, an electrically controlled valve F16, a primary cyclone 54, a secondary cyclone 53, a centrifugal dehydrator 11, a return pipe 43, a pipe pump 17 and a clean water tank 19. The screened water of the organic impurity vibrating screen classifier 8 enters the first-stage cyclone 54 and the second-stage cyclone 53 through the screened water pipeline 22, the slurry pump 56 and the electric control valve F16, and the bottom flows of the two cyclones enter the centrifugal dehydrator 11 through the pipeline 55. The overflow of the cyclone is converged with the pipeline 46 and flows back into the inspection well 20, and finally flows to a sewage and sewage treatment plant for professional harmless treatment. After the centrifugal dehydrator 11 is subjected to solid-liquid separation, the centrifugal liquid returns to the clean water tank 19 through the return pipeline 43 and the pipeline pump 17 for repeated use, and the fine gravel separated by the centrifugal dehydrator 11 falls into the screw conveyor 13 through the chute and is discharged into the fine gravel storage barrel 14. The advantage of this embodiment lies in that the organic mud of extremely fine particle flows back to the inspection shaft in the washing liquid, promotes centrifugal dehydrator 11's solid-liquid separation effect, fully reduces fine grit material moisture content, the fine grit transportation of being convenient for, storage and resource utilization.

Example 3

Example 3 is shown in figure 4, which is different from example 1 and example 2 in that the coarse sand storage barrel 16 in the sand classification washing unit 32 is replaced by a sand barrel 59; the washing liquid recycling and processing unit 33 comprises a water screening pipeline 42 of the organic sundries vibrating screening machine 8, an electric control valve F14, a centrifugal dehydrator 11, a return pipeline 43, a pipeline pump 17 and a clean water tank 19. The screened water of the washed organic sundries vibrating screening machine 8 enters a mixing barrel 60 through a valve F14 and a screened water pipeline 42, enters a centrifugal dehydrator 11 together with coarse gravels for solid-liquid separation, the centrifugal liquid returns to a clean water tank 19 through a return pipeline 43 and a pipeline pump 17 for repeated use, and the gravels separated by the centrifugal dehydrator 11 fall into a screw conveyor through a chute and then are discharged into a gravels storage barrel 59. The advantage of this embodiment lies in that the thick and thin grit is unified to have centrifugal dehydrator 11 to retrieve in the washing liquid, simplifies process system simultaneously, and the grit of being convenient for is transported, is stored, is buried and resource utilization.

Claims (9)

1. The movable pipe canal dredging sludge treatment system is characterized by comprising a flat car (28) and

the system comprises a vacuum automatic mud suction unit (29), an air pressure automatic mud discharge unit (30), a mud vibration screening unit (31), a sand grading washing unit (32), a washing liquid recovery processing unit (33) and a whole system program operation monitoring unit (34) which are arranged on a flat car (28); wherein:

the vacuum automatic sludge suction unit (29) is used for sucking sludge in the pipe canal;

the pneumatic automatic sludge discharge unit (30) is used for discharging the sewage in the pipe channel sucked by the vacuum automatic sludge suction unit (29)

The sludge is discharged and sent to a sludge vibration screening unit (31);

the sludge vibration screening unit (31) is used for separating bulk domestic garbage from sludge and removing the rest

The sludge is sent to a sand grading washing unit (32), and tail water after screening flows back to the inspection well (20);

the sand-grading washing unit (32) is used for separating coarse sand and organic matters from the residual sludge

Sundries; the fine sand and stone enter a washing liquid recovery processing unit (33) along with water;

the washing liquid recovery processing unit (33) is used for separating fine sand and purified water;

the whole-system program operation monitoring unit (34) comprises a P L C program control cabinet (57), a power distribution cabinet (58),

The system is used for carrying out preset program control or manual control on the whole system and realizing automatic operation of the system under the monitoring of a monitor meter and a sensor; wherein:

the sand grading and washing unit (32) comprises a hydraulic sand grading and washing machine (7), conveying equipment, a coarse sand storage barrel (16), an organic impurity vibrating screening machine (8) and an organic impurity storage barrel (12); the static dehydration device at the bottom of the hydraulic sand and stone grading washing machine (7) is connected with the conveying equipment and the coarse sand and stone storage barrel (16); the top of the hydraulic sand and stone grading washing machine (7) is connected with an organic impurity vibrating screening machine (8), and the discharge port of the organic impurity vibrating screening machine (8) is connected with an organic impurity storage barrel (12) through conveying equipment.

2. The mobile canal desilting sludge treatment system of claim 1, wherein the system is a true one

The automatic air sludge suction unit (29) comprises a universal mechanical arm (35), a vacuum pump (4), a steam-water separator (3) and two sludge storage tanks (1, 2); a mud suction pipeline is arranged on the universal mechanical arm (35), electric control valves (F4 and F5) are arranged on the mud suction pipeline, and two ends of the mud suction pipeline are respectively connected with a pipe channel and mud storage tanks (1 and 2); the vacuum pump (4) is connected with the steam-water separator (3), the steam-water separator (3) is respectively connected with the two sludge storage tanks (1, 2) through a vacuum pipeline (36), and the vacuum pipelines (36) at the inlets of the two sludge storage tanks (1, 2) are respectively provided with an electric control valve (F3, F7).

3. The mobile canal desilting sludge treatment system of claim 1, wherein the pneumatic automation is

The movable sludge discharging unit (30) comprises an air compressor (26) and an air storage tank (25); the air compressor (26) is connected with the air storage tank (25), the air storage tank (25) is respectively connected with the top inlets and the lower air inlets of the sludge storage tanks (1, 2) through a compressed air pipeline (37), and the lower air inlets of the sludge storage tanks (1, 2) are provided with electric control valves (F11); the bottom outlets of the sludge storage tanks (1, 2) are connected with a sludge vibrating screening unit (31) through a sludge conveying pipeline (38).

4. The mobile pipe canal desilting sludge treatment system of claim 1, characterized in that the sludge vibration screening unit (31) comprises a double-layer vibrating screen (5), clear water spraying pipelines (23, 24), a water pump (18), a conveying device and a garbage storage barrel (10); the double-layer vibrating screen (5) is provided with an upper layer screen surface and a lower layer screen surface, clear water spraying pipelines (23, 24) are oppositely arranged above and below the upper layer screen surface, and the clear water spraying pipelines (23, 24) are connected with a washing liquid recovery processing unit (33); the discharge port at the upper part of the double-layer vibrating screen (5) is connected with the garbage storage barrel (10) through a conveying device, and the output end at the lower part of the double-layer vibrating screen (5) is respectively connected with the sand and stone grading washing unit (32) and the pit (20) through pipelines.

5. The mobile canal desilting sludge treatment system according to claim 1, wherein the washing liquid recovery treatment unit (33) comprises a centrifugal dehydrator (11), a pipe pump (17), a clear water tank (19), a detergent storage tank (48), a detergent pump (49), and a physicochemical scrubber (51); the detergent storage tank (48) is connected with the physical and chemical scrubber (51) through a pipeline (50), and the pipeline (50) is connected with a detergent pump (49); the output end of the sand grading washing unit (32) is sequentially connected with the physicochemical washer (51) and the centrifugal dehydrator (11) through a screen sewer pipeline (42), an electric control valve (F14) is arranged at the inlet of the centrifugal dehydrator (11), the centrifugal dehydrator (11) is connected with the clear water tank (19) through a return pipeline (43), and a pipeline pump (17) is arranged on the return pipeline (43); the centrifugal dehydrator (11) is connected with the fine sand storage barrel (14) through a conveying device.

6. The mobile canal dredging sludge treatment system of claim 1, wherein the washing liquid recovery processing unit (33) comprises a slurry pump (56), a primary cyclone (54), a secondary cyclone (53), a centrifugal dehydrator (11), a pipe pump (17) and a clean water tank (19); the output end of the sand grading washing unit (32) is respectively connected with a first-stage swirler (54) and a second-stage swirler (53) through a screen sewer pipeline (42), the bottoms of the first-stage swirler (54) and the second-stage swirler (53) are respectively connected with a centrifugal dehydrator (11) through a pipeline (55), and a slurry pump (56) and an electric control valve (F16) are arranged on the pipeline (55); the tops of the primary cyclone (54) and the secondary cyclone (53) are connected with the inspection well (20) through a top pipeline and a pipeline (46) in a converging manner; the liquid outlet of the centrifugal dehydrator (11) is connected with the clear water tank (19) through a return pipeline (43), and the discharge port of the centrifugal dehydrator (11) is connected with the fine sand storage barrel (14) through a conveying device.

7. The mobile canal dredging sludge treatment system of claim 1, wherein the coarse sand storage barrel (16) in the sand grading washing unit (32) is replaced with a sand storage barrel (59); the washing liquid recovery processing unit (33) comprises a centrifugal dehydrator (11), a pipeline pump (17), a clear water tank (19) and a sand storage barrel (59); an organic sundries vibrating screen classifier (8) of the sand grading washing unit (32) is connected with a mixing barrel (60) through an electric control valve (F14), the bottom of the mixing barrel (60) is connected with a feed inlet of a centrifugal dehydrator (11), a liquid outlet of the centrifugal dehydrator (11) is connected with a clear water tank (19) through a return pipeline (43), and a discharge outlet of the centrifugal dehydrator (11) is connected with a sand storage barrel (59) through a conveying device.

8. The mobile canal dredging sludge treatment system of any one of claims 4-7, wherein the conveying apparatus is comprised of a chute and an associated screw conveyor.

9. The mobile pipe canal desilting sludge treatment system of claim 1, wherein the system power can be provided by a diesel generator (27) arranged on a flat car (28), or can be provided by the flat car after being modified or directly externally connected with site power.

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