CN108187409A - A kind of multilayer gravitational settling dust-precipitator - Google Patents

A kind of multilayer gravitational settling dust-precipitator Download PDF

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Publication number
CN108187409A
CN108187409A CN201810234984.8A CN201810234984A CN108187409A CN 108187409 A CN108187409 A CN 108187409A CN 201810234984 A CN201810234984 A CN 201810234984A CN 108187409 A CN108187409 A CN 108187409A
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CN
China
Prior art keywords
expansion chamber
dust
partition board
housing
wind shield
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Pending
Application number
CN201810234984.8A
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Chinese (zh)
Inventor
赵红霞
仝军锋
李妙玲
侯洪海
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Luoyang Institute of Science and Technology
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Luoyang Institute of Science and Technology
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Priority to CN201810234984.8A priority Critical patent/CN108187409A/en
Publication of CN108187409A publication Critical patent/CN108187409A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D45/00Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/02Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising gravity
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D45/00Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/18Cleaning-out devices

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separating Particles In Gases By Inertia (AREA)

Abstract

A kind of multilayer gravitational settling dust-precipitator, including the housing at least provided with an expansion chamber, air inlet is offered on housing wherein side side wall, air outlet is offered on housing opposite side side wall, air inlet and air outlet are connected with expansion chamber, and the partition board of several equidistantly distributeds is provided in the expansion chamber in housing.According to processing air quantity, it will can increase the demarcation strip number of plies, processing air quantity can meet technological requirement, simultaneously as gap is small between adjacent separator plates, dust-collecting efficiency is high by multilayer insulating panel expansion chamber being separated inside expansion chamber in the present apparatus.

Description

A kind of multilayer gravitational settling dust-precipitator
Technical field
The present invention relates to a kind of dust arrester installation to be gathered dust with gravity, more particularly, to a kind of multilayer gravitational settling dust-precipitator.
Background technology
So-called gravitational settling is:A kind of process that the solid particle of suspension in a fluid is made to sink and be detached with fluid. It is the effect by earth gravitational field, using the density variation of particle and fluid, is allowed to that relative motion occurs and settles, i.e., heavy Power settles.Gravitational settling is the most straightforward procedure that grit is isolated from air-flow.Only particle is larger, when gas velocity is smaller, gravity The effect of sedimentation is just more apparent.
The dispersion particle in the medium of suspending will be acted on by gravity and buoyancy, suffered by resulting net force be:
V is the volume of single particle in F=V (ρ-ρ 0) g formulas;ρ and ρ 0 is respectively the density of particle and medium;G accelerates for gravity Degree.If ρ>ρ 0, then particle sinking;It is on the contrary then float.Therefore, as long as the density of particle and medium differs, particle is made in gravitational field Concentration or it will be sunken to the bottom of container in one direction or float on the upper strata of medium under.But then, due to particle Concentration, there is concentration difference in system, thus generates diffusion.Diffusion is two relatively anti-processes with sedimentation.Sedimentation makes particle edge The concentration of sedimentation direction;Diffusion is then on the contrary, make particle be uniformly distributed in the medium.Particle hour, diffusion play a major role, thus Dispersion is being kinetically stable.When particle is big, sedimentation plays a major role, and particle settles in gravitational field, and system is not Stablize, coarse dispersion system belongs to such case.In intermediate state, settle and diffuse into balance, particle in the medium concentration with Height difference has a balanced distribution.
Dust-precipitator is a kind of more extensive cleaner of application.Dust-precipitator includes bag filter, impulse bag gathers dust Device, cottrell, wet scrubber, electrostatic fabric filter etc..
Dust-precipitator is collected for particle dirt, and exhaust-gas treatment amount, resistance is small, high dust collection efficiency.Suitable for grain, metallurgy, change The dedusting of the industries such as work, steel, coking, building materials.
There are two types of dust-precipitator main applications:A kind of is the dust removed in air, improves environment, pollution is reduced, so again The dust collection device of this purposes is called cleaner, such as the dust collection device that uses of exhaust emissions of factory;Another purposes It is to screen to collect powder product by dust collection device, as cement system extracts the collection of finished cement.
Bag filter drives dusty gas to enter dirt room inside dust-precipitator with dust collecting fan, and air after filter bag by becoming Cleaning is discharged by dust collecting fan, and dust is then prevented from, and is adsorbed in the outer surface of filter bag, is then controlled from pulse valve into filter bag Portion is blown high pressure gas, and dust is shaken off, into aggregate bin, by locking wind blanking device(There are star device for discharging and flap valve Two kinds of airlocks, it is specifically used which kind of depending on specifically used environment).
At present, it is mainly gravity settling chamber using the device that gravity gathers dust, because its is simple in structure, movement-less part, institute Can be used in some occasions of less demanding of gathering dust.But because it takes up a large area, dust-collecting efficiency is low to influence its use scope.
Invention content
The purpose of the present invention is to solve the problems, such as that existing gravity settling device efficiency is low, provide a kind of multilayer gravity and sink Dust-precipitator drops.
The deficiency of the present invention to solve above-mentioned technical problem, used technical solution are:
A kind of multilayer gravitational settling dust-precipitator, including the housing at least provided with an expansion chamber, on housing wherein side side wall Air inlet is offered, air outlet is offered on housing opposite side side wall, air inlet and air outlet are connected with expansion chamber, air inlet Center line identical and the two with outlet air open area overlaps, and the bottom that each expansion chamber is located on housing is both provided with ash hole, The partition board of several equidistantly distributeds is provided in expansion chamber in housing, is sunk if the expansion chamber in housing is divided into dried layer by partition board Drop channel, partition board is obliquely installed and partition board is fixed on apart from the larger one end of expansion chamber distance from bottom in housing sidewall, partition board away from From the freely hanging setting of the smaller one end of expansion chamber distance from bottom, partition board is more than the powder waited to gather dust and detached with the angle of mounting plane The angle of repose of dirt material, expansion chamber are provided with wind shield on one end close to air inlet, and wind shield is set perpendicular to mounting plane It puts, the upper end of wind shield is fixed in the inner walls of top of settling chamber, and the lower end of wind shield is fixed on the shell of expansion chamber bottom On internal wall, wind shield wherein side is fixed in expansion chamber close to housing of the partition board apart from the smaller one end of expansion chamber distance from bottom On inner wall, another lateral partition board of wind shield extends up to partition board free end apart from the direction of the larger one end of expansion chamber distance from bottom and hides Gear is at wind shield rear.
The partition board and the angle of mounting plane are 3-5 ° bigger than the angle of repose for the particulate dust detached of waiting to gather dust.
Flue-dust retainer is provided between the ash hole and housing, is connected at the top of flue-dust retainer with expansion chamber.
Dust-precipitator is separated into the different space of multiple functions even dried layer and settles channel by the partition board in the application, is passed through Partition board in height divides settlement space so that dust particles settling height becomes smaller, in the situation of identical dust-collecting efficiency Under so that dust-precipitator volume becomes smaller, and in the situation for keeping expansion chamber height dimension constant, expansion chamber becomes smaller in longitudinal size.
Partition board slant setting, gradient are more than material angle far more than naturally, the dust being deposited on partition board, along hang plate, by Eminence slides into lower, after leaving inclined plate, falls on flue-dust retainer under the effect of gravity, then enters ash hole discharge by flue-dust retainer.
The structure effectively reduces distance of the dust in the indoor sedimentation of sedimentation, reduces the longitudinal size of expansion chamber, improves Dust-collecting efficiency, the structure size of the expansion chamber of reduction.Because partition board slant setting solves the collection for being deposited to dust on partition board Grey problem.The structure is because improve dust-collecting efficiency, and in the case where keeping identical dust-collecting efficiency, the overall volume of dust chamber subtracts Small, the gas and the extraneous area to exchange heat that dust chamber is passed through in equipment reduce, so as to which the heat dissipation area for making dust collecting system subtracts It is few, so as to reduce dust collecting system heat dissipation.
The beneficial effects of the invention are as follows:In the present apparatus, will by multilayer insulating panel expansion chamber being separated inside expansion chamber, According to processing air quantity, the demarcation strip number of plies can be increased, processing air quantity can meet technological requirement, simultaneously as adjacent separator plates it Between gap it is small, dust-collecting efficiency is high.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the sectional view in A-A directions in Fig. 1 of the present invention.
Diagram label:1st, air inlet, 2, air outlet, 3, ash hole, 4, housing, 401, wind shield, 402, partition board, 403, heavy Channel drops, and 5, flue-dust retainer.
Specific embodiment
Shown in figure, specific embodiment is as follows:
A kind of multilayer gravitational settling dust-precipitator, including the housing 4 at least provided with an expansion chamber, the wherein side side wall of housing 4 On offer air inlet 1, air outlet 2 is offered on 4 opposite side side wall of housing, air inlet 1 and air outlet 2 are connected with expansion chamber And air inlet 1 is identical with 2 area of air outlet and the center line of the two overlaps, the bottom that each expansion chamber is located on housing 4 is all provided with It is equipped with ash hole 3, the partition board 402 of several equidistantly distributeds is provided in the expansion chamber in housing 4, partition board 402 will be in housing If expansion chamber is divided into dried layer sedimentation channel 403, partition board 402 is obliquely installed and partition board 402 is larger apart from expansion chamber distance from bottom One end be fixed on 4 side wall of housing, partition board 402 is apart from the freely hanging setting of the smaller one end of expansion chamber distance from bottom, partition board 402 are more than the angle of repose for the particulate dust detached of waiting to gather dust, and the angle of partition board 402 and mounting plane with the angle of mounting plane It is 3-5 ° bigger than the angle of repose of the particulate dust of separation to be gathered dust.Expansion chamber is provided with wind shield on one end close to air inlet 1 401, wind shield 401 is set perpendicular to mounting plane, and the upper end of wind shield 401 is fixed on 4 inner wall of housing of top of settling chamber, The lower end of wind shield 401 is fixed on 4 inner wall of housing of expansion chamber bottom, and the wherein side of wind shield 401 is fixed in expansion chamber In inner walls of the partition board 402 with the smaller one end of expansion chamber distance from bottom, another lateral partition board 402 of wind shield 401 is with sinking The direction of the larger one end of drop room distance from bottom extends up to 402 free end of partition board and blocks at 401 rear of wind shield.
Flue-dust retainer 5 is provided between the ash hole 3 and housing 4,5 top of flue-dust retainer is connected with expansion chamber.
Dust under the effect of gravity, is dropped on partition board 402, due to 402 slant setting of partition board, is deposited on partition board 402 Dust, moved from high to low along partition board 402, subsequently depart from partition board 402 and discharged under the effect of gravity by ash hole 3.By Small in every adjacent interlamellar spacing, also small with regard to settling height, when wind speed is identical, dust-collecting efficiency is high;Inside housing 4, such as Fig. 1 institutes Show, equipped with wind shield 401,401 installation position of wind shield is in 1 position of air inlet.Because the effect of this wind shield 401 so that contain Wind speed of the dust and gas body on wind cross section is crossed is different, and the wind band at partition board 402 is small leaving for dust, and the dust after sedimentation will not be by Wind takes up, and the dust after sedimentation can smoothly land lower flue-dust retainer 5.
The partition board 402 is parallel, uniformly distributed, tilts and places.These partition boards 402, by dusty gas be divided into Several channels.Partition board 402 be also dust collection plate, the dust being deposited on partition board 402, under the effect of gravity, collect every Dust on plate 402 moves from high to low, finally leaves partition board (such as Fig. 2);
The partition board wants slant setting, is greater than 3-5 ° of particulate dust angle of repose with horizontal direction angle.Note:It is obliquely installed Purpose be to facilitate the dust of gravitational settling convenient for being discharged under the effect of gravity along lower face plate by ash hole.
401 purpose of wind shield is to reduce the wind speed that each partition board dust leaves partition position, prevent dust again It has been eaten.
Technical solution and embodiment cited by the present invention and non-limiting, with the technical solution cited by the present invention and Embodiment is equivalent or effect same approach is all in the range of the present invention protects.

Claims (3)

1. a kind of multilayer gravitational settling dust-precipitator, it is characterised in that:Including the housing at least provided with an expansion chamber, housing its Air inlet is offered on middle side side wall, offers air outlet on housing opposite side side wall, air inlet and air outlet with sedimentation Room connects, and air inlet is identical with outlet air open area and the center line of the two overlaps, and the bottom that each expansion chamber is located on housing is equal It is provided with ash hole, is provided with the partition board of several equidistantly distributeds in the expansion chamber in housing, partition board is by the expansion chamber in housing If being divided into dried layer sedimentation channel, partition board is obliquely installed and partition board is fixed on housing apart from the larger one end of expansion chamber distance from bottom On side wall, partition board is freely vacantly set apart from the smaller one end of expansion chamber distance from bottom, and the angle of partition board and mounting plane is more than The angle of repose of the particulate dust of separation to be gathered dust, expansion chamber are provided with wind shield on one end close to air inlet, and wind shield hangs down It is directly set in mounting plane, the upper end of wind shield is fixed in the inner walls of top of settling chamber, and the lower end of wind shield is fixed on In the inner walls of expansion chamber bottom, wind shield wherein side is fixed in expansion chamber close to partition board apart from expansion chamber distance from bottom In the inner walls of smaller one end, another lateral partition board of wind shield is straight apart from the extension of the direction of expansion chamber distance from bottom larger one end It is blocked to partition board free end at wind shield rear.
2. a kind of multilayer gravitational settling dust-precipitator according to claim 1, it is characterised in that:The partition board is flat with installation The angle in face is 3-5 ° bigger than the angle of repose of the particulate dust of separation to be gathered dust.
3. a kind of multilayer gravitational settling dust-precipitator according to claim 1, it is characterised in that:The ash hole and housing Between be provided with flue-dust retainer, connected at the top of flue-dust retainer with expansion chamber.
CN201810234984.8A 2018-03-21 2018-03-21 A kind of multilayer gravitational settling dust-precipitator Pending CN108187409A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109516461A (en) * 2018-12-31 2019-03-26 江苏丽鑫环保科技有限公司 A kind of active carbon defluorinate system
CN112263878A (en) * 2020-11-13 2021-01-26 北京京诚科林环保科技有限公司 Multi-settling high-temperature flue gas particle separation device
CN113092189A (en) * 2021-05-18 2021-07-09 河北省地质调查院 Device suitable for connecting atmosphere to subside on flat table top

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CN107469527A (en) * 2017-07-31 2017-12-15 广西力源宝科技有限公司 The ash hopper device and dedusting recovery method of a kind of deduster
CN208145621U (en) * 2018-03-21 2018-11-27 洛阳理工学院 A kind of multilayer gravitational settling dust-precipitator

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109516461A (en) * 2018-12-31 2019-03-26 江苏丽鑫环保科技有限公司 A kind of active carbon defluorinate system
CN109516461B (en) * 2018-12-31 2023-12-26 江苏丽鑫环保科技有限公司 Activated carbon defluorination system
CN112263878A (en) * 2020-11-13 2021-01-26 北京京诚科林环保科技有限公司 Multi-settling high-temperature flue gas particle separation device
CN113092189A (en) * 2021-05-18 2021-07-09 河北省地质调查院 Device suitable for connecting atmosphere to subside on flat table top

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Application publication date: 20180622

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