CN114832533A - Dust-containing waste gas treatment device of animal feed production plant - Google Patents
Dust-containing waste gas treatment device of animal feed production plant Download PDFInfo
- Publication number
- CN114832533A CN114832533A CN202210789423.0A CN202210789423A CN114832533A CN 114832533 A CN114832533 A CN 114832533A CN 202210789423 A CN202210789423 A CN 202210789423A CN 114832533 A CN114832533 A CN 114832533A
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- dust
- filter plate
- plate
- folding
- ventilation pipeline
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- 239000000428 dust Substances 0.000 title claims abstract description 120
- 239000002912 waste gas Substances 0.000 title claims abstract description 59
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 238000009423 ventilation Methods 0.000 claims abstract description 70
- 238000001914 filtration Methods 0.000 claims abstract description 43
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 230000000712 assembly Effects 0.000 claims abstract description 26
- 238000000429 assembly Methods 0.000 claims abstract description 26
- 239000007789 gas Substances 0.000 claims abstract description 22
- 239000002245 particle Substances 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 13
- 238000007664 blowing Methods 0.000 claims description 11
- 238000004146 energy storage Methods 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 8
- 230000001737 promoting effect Effects 0.000 claims description 6
- 238000003825 pressing Methods 0.000 description 14
- 238000004140 cleaning Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
- B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/74—Regeneration of the filtering material or filter elements inside the filter by forces created by movement of the filter element
- B01D46/76—Regeneration of the filtering material or filter elements inside the filter by forces created by movement of the filter element involving vibrations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention relates to the technical field of gas filtration, in particular to a dust-containing waste gas treatment device for an animal feed production plant. A dust-containing waste gas treatment device of an animal feed production plant comprises a ventilation pipeline and two filtering mechanisms. One end of the ventilation pipeline is an air inlet, the other end of the ventilation pipeline is an air outlet, and dust-containing waste gas is blown to the air outlet from the air inlet. Two filter mechanisms are symmetrically arranged in the ventilation pipeline and used for filtering dust particles in dust-containing waste gas, and each filter mechanism comprises a folding filter plate component, a clamping component, a vibration component and an ash removal component. When the acting force of the dust-containing waste gas on the folding filter plate assembly exceeds a first preset value, the folding filter plate assembly overcomes the limit of the clamping and stopping assembly and starts to fold. And when the acting force of the dust-containing waste gas on the folding filter plate assembly is less than a second preset value, the folding filter plate assembly resets. When the times of reciprocating folding of the two folding filter plate assemblies reach the preset times, the tension of the first tension spring begins to be released, so that the two folding filter plate assemblies are straightened. Dust attached to the filter mechanism is shaken off.
Description
Technical Field
The invention relates to the technical field of gas filtration, in particular to a dust-containing waste gas treatment device for an animal feed production plant.
Background
In animal feed processing factories, mainly for producing granulated feeds, a lot of dust is generated and dispersed in the air when producing the granulated feeds, if the production waste gas is not treated and directly discharged, the air is seriously polluted, the prior treatment mode mostly adopts a bag type dust collector, a cyclone dust collector and the like, and the dust collection effect is better through the matching use with the subsequent treatment procedures such as spraying purification and the like; however, because this kind of dust collector has all adopted and has blown into filterable structure of realization in the sealed container with dust gas, consequently can't grasp in real time to the jam condition of filter plate, more can't carry out timely effectual filter plate clean to make the filter effect weaken gradually along with the increase of time, and when the filter plate blockked, the continuous of dust is blown in and can be leaded to container internal pressure to increase, produces the dust easily and flows backward or through the circumstances of row's cinder notch blowout, still probably makes fan equipment produce the damage because of the load is too high. In addition, the filter plate cleaning operation of this type of device generally requires the use of special equipment for back flush cleaning, for example, application publication No. CN108654225A discloses an air purification filter plate assembly, which not only interrupts the dust filtering process, but also increases the extra equipment cost, and the filter plate cannot be used immediately after cleaning, and needs to be dried by blowing or hot drying, otherwise the dust will adhere to the surface of the filter plate to form mud and dirt which is difficult to remove, and the cleaning is time-consuming and labor-consuming.
Disclosure of Invention
The invention provides a dust-containing waste gas treatment device for an animal feed production plant, which aims to solve the problem that the existing dust-containing waste gas treatment device wastes time and labor when cleaning dust.
The invention relates to a dust-containing waste gas treatment device for an animal feed production plant, which adopts the following technical scheme:
a dust-containing waste gas treatment device of an animal feed production plant comprises a ventilation pipeline and two filtering mechanisms. The ventilation pipeline is a square pipe, one end of the ventilation pipeline is an air inlet, the other end of the ventilation pipeline is an air outlet, and dust-containing waste gas is blown to the air outlet from the air inlet; the two filtering mechanisms are symmetrically arranged in the ventilation pipeline and are used for filtering dust particles in dust-containing waste gas, and each filtering mechanism comprises a folding filter plate component, a clamping component, a vibrating component and an ash removal component; the folding filter plate assemblies can rotate around a vertical axis and can be arranged in a sliding way along the extending direction of the ventilating duct, and when the two folding filter plate assemblies of the two filter mechanisms can rotate around a vertical axis and can slide along the extending direction of the ventilating duct, the folding action is performed; the clamping and stopping component is used for limiting the folding filter plate components to rotate and slide, and further limiting the folding of the two folding filter plate components.
When the acting force of the dust-containing waste gas on the folding filter plate assembly exceeds a first preset value, the folding filter plate assembly overcomes the limit of the clamping and stopping assembly and starts to fold; when the acting force of the dust-containing waste gas on the folding filter plate assembly is smaller than a second preset value, resetting; the first preset value is greater than the second preset value.
The vibration assembly is configured to cause the two folded filter plate assemblies to vibrate during folding. The ash removal component comprises a first tension spring and an energy storage component, wherein the energy storage component is configured to convert each folding of the two folding filter plate components into energy storage of the first tension spring, and when the times of reciprocating folding of the two folding filter plate components reach preset times, the tensile force of the first tension spring begins to be released to promote the two folding filter plate components to be straightened.
Furthermore, the folding filter plate assembly comprises filter plates and baffle plates which are arranged in the front and back direction of the flowing direction of the dust-containing waste gas, and each filter plate comprises a grating plate, a connecting plate, an exhaust plate and a stretching assembly; the grating plate is provided with a plurality of first filtering holes, the connecting plate and the exhaust plate are positioned at two sides of the grating plate, and the grating plate is connected with the connecting plate and the exhaust plate through spring columns; the air exhaust plate is arranged on one side of the grid plate close to the middle part of the ventilating duct, a plurality of air vents are arranged on the air exhaust plate, and the two air exhaust plates of the two folding filter plate assemblies are rotatably connected with each other; the baffle plates are provided with second filter holes, and the ends, close to each other, of the two baffle plates of the two folding filter plate assemblies are rotationally connected with each other; the stretching assembly comprises a stretching column and a second tension spring, the stretching column is slidably arranged in the ventilation pipeline along one side perpendicular to the ventilation pipeline, one end of the stretching column is connected with the wall of the ventilation pipeline through the second tension spring, the other ends of the connecting plate and the baffle are rotatably arranged at the other end of the stretching column, and the stiffness coefficient of the second tension spring is greater than that of the first tension spring; in the initial state, first filter holes on the filter plate and second filter holes on the baffle plate which are arranged in a front-back corresponding manner are in one-to-one correspondence, and dust-containing waste gas is allowed to pass through; along with the accumulation of time, dust particles attached to the filter plate are gradually increased, and the resistance of the filter plate to the dust-containing waste gas is gradually increased; the folding filter plate component reaches a first state from an initial state and then reaches a second state in the folding process, the first state is that the filter plates and the baffle plates which are correspondingly arranged in the front and the back are staggered, the first filter holes are blocked, the second state is that the two filter plates which correspond in the front and the back are further staggered, and the first filter holes are overlapped with the second filter holes at the other positions of the baffle plates which correspond in the front and the back; the vibration component is used for promoting the folded filter plate component to change from the first state to the second state in a sudden change way and promoting the folded filter plate component to generate vibration in the sudden change way.
Furthermore, a fixing frame is further mounted on the side wall of the ventilation pipeline, a mounting cavity is arranged in the fixing frame, the mounting cavity is communicated with the inside of the ventilation pipeline, the stretching column is located in the mounting cavity in an initial state, and one end of a second tension spring is connected with the fixing frame; a clamping groove is formed in the stretching column, the clamping and stopping assembly comprises a clamping block and a first connecting spring, the clamping block is located in the clamping groove in an initial state, and one end, far away from the stretching column, of the clamping block is connected to the fixing frame through the first connecting spring; when the acting force of dust-containing waste gas on the folding filter plate assembly exceeds a preset value, the stretching column is separated from the limit of the fixture block and moves to one side close to the middle part of the ventilation pipeline.
Furthermore, the vibration assembly comprises a limiting tooth, a first limiting elastic block and a second limiting elastic block; the limiting teeth are fixedly arranged on the grating plate; the first limiting elastic block is connected to the baffle through a second connecting spring, the second limiting elastic block is connected to the baffle through a third connecting spring, and the stiffness coefficient of the second connecting spring is larger than that of the third connecting spring; the first limiting elastic block and the second limiting elastic block are both in a ratchet shape and are used for being matched with limiting teeth, an inclined surface and a stopping surface are arranged on the first limiting elastic block and the second limiting elastic block respectively, the stopping surfaces of the first limiting elastic block and the second limiting elastic block deviate from each other, when the folding filter plate assembly is in a first state, the limiting teeth abut against the stopping surface of the first limiting elastic block, when the limiting teeth break through the limitation of the stopping surface of the first limiting elastic block, the elastic force of the spring column can be overcome, the elastic force quickly reaches a state abutting against the stopping surface of the second limiting elastic block, the state is a second state, then the resistance of the second limiting elastic block is overcome by the filtering mechanism under the action of a second tension spring, and the filtering mechanism is in a circular reciprocating mode.
Further, the energy storage assembly comprises a limiting piece, a transmission piece and an unlocking piece; the bottom wall in the ventilation pipeline is provided with a sliding rail, the sliding rail extends along one side vertical to the ventilation pipeline, the lower end of the connecting plate is provided with a sliding block, and the sliding block is arranged in a sliding manner along the sliding rail in the horizontal direction; the limiting piece comprises a limiting ratchet plate and a ratchet block, the ratchet plate is slidably mounted on the bottom wall in the ventilation pipeline along the vertical direction through a fourth connecting spring, a first boss and a second boss are arranged on the ratchet plate, the height of the first boss is higher than that of the second boss, and the second boss is used for stopping the sliding block; the ratchet block is meshed with the ratchet plate, one end of a first tension spring is connected with the ratchet block, and the other end of the first tension spring is connected with the fixing frame; the transmission part is configured to drive the ratchet block to move towards one side close to the middle part of the ventilation pipeline along the ratchet plate when the filtering mechanism is folded each time; the ratchet block is fixedly provided with a pressing plate, the first boss is used for stopping the pressing plate, when the reciprocating folding times of the two folding filter plate assemblies reach the preset times, the pressing plate presses the ratchet plate under the driving of the ratchet block, so that the resistance of the second boss is overcome by the sliding block after the two folding filter plate assembly mechanisms reach the second state again, the ratchet plate is further pushed to move downwards, and the ratchet plate is separated from the ratchet block.
Further, the transmission part comprises a first gear, a second gear, a transmission shaft, a first rack and a second rack; the first rack is fixedly arranged on the stretching column; the second rack is fixedly arranged on the pressure plate; the vertical setting of axis of transmission shaft, the transmission shaft is rotationally installed in fixed frame around self axis, and first gear and second gear set up respectively in the upper and lower both ends of transmission shaft, first gear and first rack toothing, second gear and second rack toothing, first gear and second gear one-way fit, the second gear configuration becomes only when tensile post moves to being close to air pipe middle part along with first gear revolve.
Further, the radius of rotation of the first gear is greater than the radius of rotation of the second gear.
Furthermore, the first filtering holes and the second filtering holes are strip-shaped holes extending along the vertical direction in the opposite direction, and the first filtering holes and the second filtering holes are the same in size and shape.
The dust collecting hopper is arranged below the ventilating pipeline and is positioned on the windward side of the filter plate; the dust collecting hopper is communicated with the inside of the ventilating duct; the blowing mechanism is arranged on the ventilation pipeline and is used for blowing dust into the dust collecting hopper.
Furthermore, the two sides of each limiting tooth are inclined planes, and the slope of the inclined plane of each limiting tooth close to one side of the ventilation pipeline is larger than the slope of the inclined plane of each limiting tooth far away from one side of the ventilation pipeline.
The invention has the beneficial effects that: the dust-containing waste gas treatment device of the animal feed production plant provided by the invention utilizes the reciprocating movement of the filtering mechanism to carry out multi-frequency cleaning on dust on the filtering mechanism. And the two folding filter plate components can vibrate in the reciprocating folding process to shake off dust attached to the filter mechanism. Through setting up the deashing subassembly, the pulling force of first extension spring begins to release when the number of times that two folding filter plate subassemblies are reciprocal folding reaches preset number of times, makes the filter assembly straight, and the vibrations degree increases, further improves the clearance effect to attaching to the dust on folding filter plate subassembly.
The dust-containing waste gas treatment device of the animal feed production plant can automatically shake and clean the filter plate in the process of filtering the dust-containing waste gas, does not need manual auxiliary operation, saves manpower and material resources, does not need to add an additional cleaning mechanism, has low cost, does not influence the emission of the dust-containing waste gas, and has high working efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a front view of an embodiment of a dust-laden waste gas treatment apparatus of an animal feed production plant of the present invention;
FIG. 2 is a schematic structural view of an embodiment of a dust-containing exhaust gas treatment apparatus of an animal feed production plant according to the present invention;
FIG. 3 is a partial cross-sectional view of FIG. 2;
FIG. 4 is a schematic structural view of a filter mechanism of an embodiment of a dust-containing exhaust gas treatment device of an animal feed production plant of the present invention;
FIG. 5 is an enlarged view taken at A in FIG. 4;
FIG. 6 is a schematic view of a folded filter plate assembly of an embodiment of a dust-laden waste gas treatment apparatus of an animal feed production plant of the present invention;
FIG. 7 is a schematic view of a pleated filter plate assembly of an embodiment of a dust-laden waste gas treatment device of an animal feed production plant of the present invention in a second state;
FIG. 8 is an enlarged view of FIG. 7 at B;
FIG. 9 is a schematic view showing a state where the first tension spring starts to be released in the embodiment of the dust-containing exhaust gas treatment device of the animal feed production plant of the present invention;
fig. 10 is an enlarged view of fig. 9 at C.
In the figure: 100. an air inlet; 200. an air outlet; 300. a ventilation duct; 310. a blowing mechanism; 320. a fixing frame; 331. a second tension spring; 332. stretching the column; 333. a clamping block; 334. a first tension spring; 335. a ratchet plate; 336. pressing a plate; 337. a first gear; 338. a drive shaft; 339. a second rack; 340. filtering the plate; 341. a baffle plate; 3411. a second filter hole; 342. a vent panel; 3421. a vent hole; 343. a first boss; 344. a spring post; 345. a grid plate; 3451. a first filter hole; 346. a connecting plate; 347. a second boss; 351. limiting teeth; 352. a first limit spring block; 353. a second limit spring block; 400. a dust collecting hopper; 500. a ratchet block; 501. a first connecting spring; 502. a second gear; 503. a second connecting spring; 504. and a third connecting spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 10, an embodiment of the apparatus for treating dust-containing exhaust gas from an animal feed production plant of the present invention includes a ventilation duct 300 and two filtering mechanisms. The ventilation duct 300 is a square tube, one end of the ventilation duct 300 is an air inlet 100, the other end of the ventilation duct 300 is an air outlet 200, and dust-containing waste gas is blown to the air outlet 200 from the air inlet 100. Two filter mechanisms are symmetrically arranged in the ventilation pipeline 300 and used for filtering dust particles in dust-containing waste gas, and each filter mechanism comprises a folding filter plate component, a clamping component, a vibration component and an ash removal component. The pleated filter plate assemblies are rotatable about a vertical axis and slidably disposed along the direction of extension of the vent conduit 300, and perform a folding action when the two pleated filter plate assemblies of the two filter mechanisms are rotatable about a vertical axis and slidably disposed along the direction of extension of the vent conduit 300. The clamping and stopping assembly is used for limiting the folding filter plate assemblies to rotate and slide so as to limit the folding of the two folding filter plate assemblies, and when the acting force of dust-containing waste gas on the two folding filter plate assemblies exceeds a first preset value, the two folding filter plate assemblies overcome the limitation of the clamping and stopping assembly and start to fold; when the acting force of the dust-containing waste gas on the two folding filter plate assemblies is smaller than a second preset value, resetting; the first preset value is greater than the second preset value, and the movement of the folding filter plate assembly in the process can shake off dust on the folding filter plate assembly. The vibration component is configured to enable the folding filter plate components to generate vibration in the folding process of the two folding filter plate components, so that the cleaning effect on dust on the folding filter plate components is improved. The ash removal component comprises a first tension spring 334 and an energy storage component, the energy storage component is configured to convert each folding of the two folding filter plate components into energy storage of the first tension spring 334, when the times of reciprocating folding of the two folding filter plate components reach preset times, the tension of the first tension spring 334 starts to be released, so that the two folding filter plate components are straightened, the vibration degree is increased, and the cleaning effect on dust attached to the folding filter plate components is further improved.
In the present embodiment, the folding filter plate assembly includes filter plates 340 and baffles 341 arranged in tandem in the flow direction of the dust-laden exhaust gas, and each filter plate 340 includes a grid plate 345, a connecting plate 346, a vent plate 342, and a tension assembly. The grid plate 345 is provided with a plurality of second filtering holes 3451, the connecting plate 346 and the exhaust plate 342 are positioned at two sides of the grid plate 345, and the grid plate 345 is connected with the connecting plate 346 and the exhaust plate 342 through the spring columns 344. The air exhaust plate 342 is disposed on one side of the grid plate 345 near the middle of the ventilation duct 300, a plurality of vent holes 3421 for allowing dust-containing exhaust gas to pass through are disposed on the air exhaust plate 342, and the two air exhaust plates 342 of the two pleated filter plate assemblies are rotatably connected to each other. The baffle 341 is provided with a second filter hole 3411, and the ends of the two baffles 341 of the two pleated filter plate assemblies close to each other are rotatably connected to each other. The stretching component comprises a stretching column 332 and a second tension spring 331, the stretching column 332 is slidably disposed in the ventilation duct 300 along a side perpendicular to the ventilation duct 300, one end of the stretching column 332 is connected with the ventilation duct 300 through the second tension spring 331, the connecting plate 346 and the other end of the baffle 341 are rotatably mounted at the other end of the stretching column 332, and the stiffness coefficient of the second tension spring 331 is smaller than that of the first tension spring 334. In the initial state, the second filter holes 3451 of the filter sheet 340 and the second filter holes 3411 of the baffle 341 are arranged in one-to-one correspondence in the front-rear direction, and allow the dust-containing exhaust gas to pass therethrough.
As time goes up, dust particles attached to the filter plates 340 gradually increase, the resistance of the filter plates 340 to the dust-containing waste gas gradually increases, and since the flow speed of the dust-containing waste gas in the middle of the duct is greater than the speed of the dust-containing waste gas near the peripheral wall of the duct 300 due to the wall resistance of the duct 300 when the dust-containing waste gas flows in the duct 300, the two filter plates 340 have a tendency to fold under the push of the dust-containing waste gas. The folding filter plate assembly reaches a first state from an initial state in the folding process and then reaches a second state, the first state is that the filter plate 340 and the baffle 341 which are correspondingly arranged in the front and back are staggered, the second filter holes 3451 are blocked, the acting force of the dust-containing waste gas on the folding filter plate assembly reaches the maximum, the folding filter plate assembly has the tendency of continuing to fold under the action of the dust-containing waste gas, and when the filter plate 340 is in the first state, the dust-containing waste gas acts on the grid plate 345 and can blow off the dust attached to the grid plate 345 or the dust is gathered to one side close to the middle of the folding filter plate assembly, so the resistance of the folding filter plate assembly to the dust-containing waste gas is reduced, and the second tension spring 331 can drive the folding filter plate assembly to reset through the stretching column 332. In the second state, the two filter plates 340 corresponding to the front and rear parts are further displaced, the second filter holes 3451 are overlapped with the second filter holes 3411 at the other positions of the baffle 341 corresponding to the front and rear parts, and then the filter assembly is reset. The vibration component is used for promoting the folding filter plate component to change from the first state to the second state in a sudden change mode, and promoting the folding filter plate component to generate vibration in the sudden change process, so that the dust cleaning effect is improved.
In this embodiment, a fixing frame 320 is further installed on the side wall of the ventilation duct 300, an installation cavity is provided in the fixing frame 320, the installation cavity is communicated with the inside of the ventilation duct 300, the stretching post 332 is located in the installation cavity in the initial state, and one end of the second tension spring 331 is connected to the fixing frame 320. The stretching post 332 is provided with a clamping groove, the clamping component comprises a clamping block 333 and a first connecting spring 501, the clamping block 333 is located in the clamping groove in an initial state, and one end of the clamping block 333, which is far away from the stretching post 332, is connected to the fixing frame 320 through the first connecting spring 501. When the force of the dust-containing exhaust gas exceeds a predetermined value, the extension rod 332 is restricted from moving to a side close to the middle of the ventilation duct 300 by the latch 333, which indicates that the amount of dust attached to the folded filter plate assembly is excessive.
In this embodiment, the vibration assembly includes a limit tooth 351, a first limit spring block 352, and a second limit spring block 353. The spacing teeth 351 are fixedly mounted on the grid plate 345. The first limit elastic block 352 is connected to the baffle 341 through the second connection spring 503, the second limit elastic block 353 is connected to the baffle 341 through the third connection spring 504, and the stiffness coefficient of the second connection spring 503 is larger than that of the third connection spring 504. The first limiting elastic block 352 and the second limiting elastic block 353 are both in a ratchet shape and are used for being matched with the limiting teeth 351, the first limiting elastic block 352 and the second limiting elastic block 353 are both provided with an inclined surface and a stopping surface, the stopping surfaces of the first limiting elastic block 352 and the second limiting elastic block 353 are deviated, when the folding filter plate assembly is in a first state, the limiting teeth 351 are abutted against the stopping surface of the first limiting elastic block 352, when the limiting teeth 351 break through the limitation of the stopping surface of the first limiting elastic block 352, the elastic force of the spring columns 344 can be overcome to quickly reach a state of being abutted against the stopping surface of the second limiting elastic block 353, the state is a second state, in the process, the limiting teeth drive the grid plate 345 to move quickly relative to the baffle 341, the collision between the limiting teeth 351 and the second limiting elastic block 353 is utilized, so that vibration is generated between the grid plate and the baffle 341, and then the folding filter plate assembly overcomes the resistance of the second limiting elastic block 353 under the action of the second tension spring 331 and is reset, the device is circulated repeatedly, and the dust attached to the folding filter plate assembly is cleaned for multiple times.
In this embodiment, the energy storage assembly includes a limiter, a transmission member, and an unlocking member. The bottom wall within the vent conduit 300 is fitted with slide rails that extend along a side perpendicular to the vent conduit 300, and the lower end of the web 346 is fitted with a slide block that is slidably disposed along the slide rails in a horizontal direction when the pleated filter plate assembly is collapsed (not shown). The limiting member comprises a limiting ratchet plate 335 and a ratchet block 500, the ratchet plate 335 is slidably mounted on the bottom wall of the ventilation duct 300 in the up-down direction through a fourth connecting spring, a first boss 343 and a second boss 347 are arranged on the ratchet plate 335, the height of the first boss 343 is higher than that of the second boss 347, and the second boss 347 is used for stopping the slider. The ratchet block 500 is engaged with the ratchet plate 335, one end of the first tension spring 334 is connected with the ratchet block 500, and the other end of the first tension spring 334 is connected with the fixing frame 320. The transmission is configured to drive the ratchet block 500 along the ratchet plate 335 to a side adjacent the middle of the vent conduit 300 upon each folding of the folded filter plate assembly. The ratchet block 500 is fixedly provided with a pressing plate 336, the first boss 343 is used for stopping the pressing plate 336, when the number of times of reciprocating folding of the folded filter plate assembly reaches a preset number of times, the pressing plate 336 presses the ratchet plate 335 under the driving of the ratchet block 500, so that the slider overcomes the resistance of the second boss 347 after the folded filter plate assembly reaches the second state again, the slider further pushes the ratchet plate 335 downwards to move downwards, the ratchet plate 335 is separated from the ratchet block 500, then the ratchet block 500 resets under the action of the first tension spring 334, and the ratchet block 500 pulls the folded filter plate assembly to be quickly straightened through the transmission member and keeps the folded filter plate assembly at the original position.
In this embodiment, the transmission comprises a first gear 337, a second gear 502, a drive shaft 338, a first rack and a second rack 339. The first rack is fixedly mounted to the tension column 332 (not shown). Second rack 339 is fixedly mounted to pressure plate 336. The axis of transmission shaft 338 sets up vertically, transmission shaft 338 rotatably installs in fixed frame 320 around self axis, first gear 337 and second gear 502 set up respectively in the upper and lower both ends of transmission shaft 338, first gear 337 and first rack toothing, second gear 502 and second rack 339 meshing, first gear 337 and second gear 502 one-way cooperation, second gear 502 configures into and rotates along with first gear 337 only when tensile post 332 moves to being close to air pipe 300 middle part, drive first rack and move to one side that is close to air pipe 300 through tensile post 332 when folding filter plate assembly, first rack removes and drives first gear 337 and rotate, first gear 337 drives second gear 502 through transmission shaft 338 and rotates, second gear 502 rotates and drives ratchet block 500 through the second rack and moves to one side that is close to air pipe 300 middle part for ratchet plate 335.
In this embodiment, the radius of rotation of the first gear 337 is greater than the radius of rotation of the second gear 502, and the pressure plate 336 is driven to move toward the side close to the middle of the ventilation duct 300 less each time the foldable filter plate assembly is folded, i.e., the second tension spring 331 needs to be folded back and forth a plurality of times each time the foldable filter plate assembly is triggered.
In this embodiment, the second filtering holes 3451 and the second filtering holes 3411 are strip-shaped holes extending in the vertical direction, and the second filtering holes 3451 and the second filtering holes 3411 have the same size and shape, so that the second filtering holes 3451 and the second filtering holes 3411 overlap and block the holes.
In this embodiment, the apparatus for treating dust-containing waste gas from an animal feed production plant further comprises a dust collecting hopper 400 and a blowing mechanism 310, wherein the dust collecting hopper 400 is installed below the ventilation duct 300 and is located on the windward side of the filter plate 340. The dust hopper 400 communicates with the inside of the ventilation duct 300 for collecting falling dust. The blowing mechanism 310 is installed to the ventilation duct 300 for blowing dust into the dust hopper 400.
In this embodiment, the two sides of each limiting tooth 351 are inclined surfaces, and the slope of the inclined surface of the limiting tooth 351 close to one side of the ventilation duct 300 is greater than the slope of the inclined surface away from one side of the ventilation duct 300, so that the folding filter plate assembly can be reset by pulling the second tension spring 331 after being folded.
During operation, dust-containing waste gas flows from the air inlet 100 to the air outlet 200, dust particles in the dust-containing waste gas are attached to the filter plate mechanism, resistance of the dust particles to the dust-containing waste gas is gradually increased along with the increase of time, so that acting force of the dust-containing waste gas to the filter plate mechanism is increased, when acting force of the dust-containing waste gas on the two folding filter plate assemblies exceeds a first preset value, the two folding filter plate assemblies overcome limitation of the clamping block 333 and start folding, in the process, each grid plate 345 pulls the stretching rod to move towards one side close to the middle part of the ventilation duct 300 through the connecting plate 346, the stretching column 332 drives the first rack to synchronously move towards one side close to the ventilation duct 300, the first rack drives the second gear 502 to rotate through the first gear 337 and the transmission shaft 338, when the second gear 502 rotates, the second rack 339 drives the pressing plate 336 to move towards one side close to the middle part of the ventilation duct 300, when the pressing plate 336 moves towards one side close to the ventilation duct 300, the first tension spring 334 is pulled to stretch, the first tension spring 334 stores energy, and when the pressing plate 336 moves, the pressing plate 336 drives the ratchet block 500 to move towards one side close to the middle part of the ventilation duct 300 along the ratchet plate 335. And the ratchet block 500 cannot be reset under the restriction of the ratchet plate 335.
Because the grid plate 345 moves towards the side far away from the middle part of the ventilation pipeline 300 relative to the baffle 341 and drives the limit teeth 351 to move synchronously when the folding filter plate assembly is folded, when the limit teeth 351 move to abut against the stop surface of the first limit elastic block 352, the filter plate 340 cannot move relative to the baffle 341, and at the moment, the second filter holes 3451 and the second filter holes 3411 are blocked, the acting force of dust-containing waste gas on the filter plate is the largest, so the folding filter plate assembly still has a folding tendency, when the dust-containing waste gas acts on the folding filter plate assembly, the dust-containing waste gas can be converged towards the middle part of the ventilation pipeline 300 along the surface of the filter plate 340, and part of dust attached to the filter plate 340 is blown off, and the burden of the filter plate 340 is reduced.
When the acting force of the dust-containing exhaust gas on the filter plate 340 exceeds a second preset value, the limiting teeth 351 break through the limitation of the stop surface of the first limiting elastic block 352, and rapidly move to the side close to the second limiting elastic block 353 to abut against the stop surface of the second limiting elastic block 353, until the slide block mounted on the connecting plate 346 moves to the position abutting against the second boss 347, and at this time, the second filtering holes 3451 on the grid plate 345 are aligned with the second filtering holes 3411 on the baffle 341 again. Since a portion of dust on the folded filter plate assembly has fallen, the second tension spring 331 can pull the filter plate to return by the tension rod, and the limit teeth 351 break through the limits of the second limit elastic block 353 and the first limit elastic block 352 to return to the initial position.
After the folded filter plate assembly reciprocates for a predetermined number of times, the pressing plate 336 moves over the first boss 343 and presses the ratchet plate 335 downward, and then the slider breaks the restriction of the second boss 347 and presses the ratchet plate 335 downward again when the folded filter plate assembly is folded again, so that the ratchet plate 335 is separated from the ratchet block 500, and after the ratchet block 500 is separated from the ratchet plate 335, the first tension spring 334 pulls the ratchet block 500 and the pressing plate 336 to move to the side away from the middle of the ventilation duct 300. The pressing plate 336 drives the folding filter plate assembly to be quickly stretched and tightened through the transmission part and the stretching rod, and shakes off dust on the folding filter plate assembly.
Meanwhile, the blowing mechanism 310 is opened to blow out the ash ejected from the folding filter plate assembly, and a one-time ash removal process is completed.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A dust-containing waste gas treatment device of an animal feed production plant is characterized by comprising a ventilation pipeline (300) and two filtering mechanisms; the ventilation pipeline (300) is a square pipe, one end of the ventilation pipeline (300) is an air inlet (100), the other end of the ventilation pipeline is an air outlet (200), and dust-containing waste gas is blown to the air outlet (200) from the air inlet (100); the two filtering mechanisms are symmetrically arranged in the ventilation pipeline (300) and are used for filtering dust particles in dust-containing waste gas, and each filtering mechanism comprises a folding filter plate component, a clamping component, a vibrating component and an ash removal component; the folding filter plate assemblies are rotatable around a vertical axis and are arranged in a sliding way along the extending direction of the ventilating duct (300), and the folding action is realized when the two folding filter plate assemblies of the two filter mechanisms are rotatable around a vertical axis and are arranged in a sliding way along the extending direction of the ventilating duct (300); the clamping and stopping component is used for limiting the folding filter plate components to rotate and slide, and further limiting the folding of the two folding filter plate components;
when the acting force of the dust-containing waste gas on the folding filter plate assembly exceeds a first preset value, overcoming the limitation of the clamping and stopping assembly and starting folding; when the acting force of the dust-containing waste gas on the folding filter plate assembly is smaller than a second preset value, resetting; the first preset value is larger than the second preset value;
the vibration component is configured to cause the folding filter plate components to generate vibration during the folding process of the two folding filter plate components;
the ash removal assembly includes a first tension spring (334) and an energy storage assembly configured to convert each folding of the two folded filter plate assemblies into a storage of energy by the first tension spring (334), the tension of the first tension spring (334) beginning to release when the number of reciprocal folds of the two folded filter plate assemblies reaches a predetermined number of times, causing the two folded filter plate assemblies to straighten.
2. A dusty exhaust gas treatment device of an animal feed production plant according to claim 1, characterized in that the folded filter plate assembly comprises filter plates (340) and baffles (341) arranged one behind the other in the flow direction of the dusty exhaust gas, each filter plate (340) comprising a grid plate (345), a connection plate (346), a vent plate (342) and a tension assembly; a plurality of first filtering holes (3451) are formed in the grid plate (345), the connecting plate (346) and the exhaust plate (342) are located on two sides of the grid plate (345), and the grid plate (345) is connected with the connecting plate (346) and the exhaust plate (342) through spring columns (344); the air exhaust plate (342) is arranged on one side of the grid plate (345) close to the middle part of the ventilation pipeline (300), a plurality of vent holes (3421) are arranged on the air exhaust plate (342), and the two air exhaust plates (342) of the two folding filter plate assemblies are mutually rotatably connected; the baffle (341) is provided with a second filtering hole (3411), and the ends of the two baffles (341) of the two folding filter plate assemblies close to each other are rotationally connected with each other; the stretching assembly comprises a stretching column (332) and a second tension spring (331), the stretching column (332) is slidably arranged in the ventilation pipeline (300) along one side perpendicular to the ventilation pipeline (300), one end of the stretching column (332) is connected with the wall of the ventilation pipeline (300) through the second tension spring (331), the connecting plate (346) and the other end of the baffle (341) are rotatably arranged at the other end of the stretching column (332), and the stiffness coefficient of the second tension spring (331) is greater than that of the first tension spring (334); in the initial state, first filter holes (3451) on the filter plates (340) which are arranged in a front-back corresponding mode correspond to second filter holes (3411) on the baffle (341) one by one, and dust-containing waste gas is allowed to pass through; as time is accumulated, dust particles attached to the filter plate (340) are gradually increased, and the resistance of the filter plate (340) to dust-containing waste gas is gradually increased; the folding filter plate assembly reaches a first state from an initial state and then reaches a second state in the folding process, the first state is that the filter plates (340) and the baffles (341) which are correspondingly arranged in the front and back are staggered, the first filter holes (3451) are blocked, the second state is that the two filter plates (340) which correspond to the front and back are further staggered, and the first filter holes (3451) are superposed with the second filter holes (3411) at the other positions of the baffles (341) which correspond to the front and back; the vibration component is used for promoting the folded filter plate component to change from the first state to the second state in a sudden change way and promoting the folded filter plate component to generate vibration in the sudden change way.
3. The apparatus for treating dust-containing exhaust gas from an animal feed production plant according to claim 2, wherein: the side wall of the ventilation pipeline (300) is further provided with a fixing frame (320), a mounting cavity is arranged in the fixing frame (320), the mounting cavity is communicated with the inside of the ventilation pipeline (300), the stretching column (332) is located in the mounting cavity in an initial state, and one end of the second tension spring (331) is connected with the fixing frame (320); a clamping groove is formed in the stretching column (332), the clamping and stopping assembly comprises a clamping block (333) and a first connecting spring (501), the clamping block (333) is located in the clamping groove in an initial state, and one end, far away from the stretching column (332), of the clamping block (333) is connected to the fixing frame (320) through the first connecting spring (501); when the acting force of dust-containing waste gas on the folding filter plate assembly exceeds a preset value, the stretching column (332) is separated from the fixture block (333) and limited to move towards one side close to the middle part of the ventilation pipeline (300).
4. The apparatus for treating dust-containing exhaust gas from an animal feed production plant according to claim 3, wherein: the vibration assembly comprises a limiting tooth (351), a first limiting elastic block (352) and a second limiting elastic block (353); the limiting teeth (351) are fixedly arranged on the grating plate (345); the first limiting elastic block (352) is connected to the baffle (341) through a second connecting spring (503), the second limiting elastic block (353) is connected to the baffle (341) through a third connecting spring (504), and the stiffness coefficient of the second connecting spring (503) is larger than that of the third connecting spring (504); the first limiting elastic block (352) and the second limiting elastic block (353) are both in a ratchet shape and are used for being matched with limiting teeth (351), an inclined surface and a stop surface are arranged on the first limiting elastic block (352) and the second limiting elastic block (353), the stop surfaces of the first limiting elastic block (352) and the second limiting elastic block (353) are deviated, when the folding filter plate assembly is in a first state, the limiting teeth (351) are abutted to the stop surface of the first limiting elastic block (352), when the limiting teeth (351) break through the limit of the stop surface of the first limiting elastic block (352), the elastic force of the spring column (344) can be overcome to rapidly reach a state of being abutted to the stop surface of the second limiting elastic block (353), the state is a second state, then the resistance of the second limiting elastic block (353) is overcome by the filter mechanism under the action of the second tension spring (331), and the filter mechanism is reset in a circulating reciprocating mode.
5. The apparatus for treating dust-containing exhaust gas from an animal feed production plant according to claim 4, wherein: the energy storage assembly comprises a limiting piece, a transmission piece and an unlocking piece; a sliding rail is mounted on the bottom wall in the ventilation pipeline (300), the sliding rail extends along one side perpendicular to the ventilation pipeline (300), a sliding block is mounted at the lower end of the connecting plate (346), and the sliding block is slidably arranged along the sliding rail in the horizontal direction; the limiting piece comprises a limiting ratchet plate (335) and a ratchet block (500), the ratchet plate (335) is slidably mounted on the bottom wall in the ventilation pipeline (300) along the up-down direction through a fourth connecting spring, a first boss (343) and a second boss (347) are arranged on the ratchet plate (335), the height of the first boss (343) is higher than that of the second boss (347), and the second boss (347) is used for stopping the sliding block; the ratchet block (500) is meshed with the ratchet plate (335), one end of the first tension spring (334) is connected with the ratchet block (500), and the other end of the first tension spring (334) is connected with the fixing frame (320); the transmission part is configured to drive the ratchet block (500) to move towards one side close to the middle part of the ventilation pipeline (300) along the ratchet plate (335) when the filtering mechanism is folded; fixed mounting has clamp plate (336) on ratchet piece (500), first boss (343) are used for backstop clamp plate (336), and clamp plate (336) are pressed ratchet board (335) under the drive of ratchet piece (500) when the number of times of reciprocating folding of two folding filter plate assembly reaches preset number of times, and then make two folding filter plate assembly construct make the slider overcome the resistance of second boss (347) after reaching the second state again, further push up ratchet board (335) and move down, make ratchet board (335) break away from with ratchet piece (500).
6. The apparatus for treating dust-containing exhaust gas from an animal feed production plant according to claim 5, wherein: the drive comprises a first gear (337), a second gear (502), a drive shaft (338), a first rack, and a second rack (339); the first rack is fixedly arranged on the stretching column (332); the second rack (339) is fixedly arranged on the pressure plate (336); the axis of transmission shaft (338) is vertical to be set up, transmission shaft (338) are rotationally installed in fixed frame (320) around self axis, first gear (337) and second gear (502) set up respectively in the upper and lower both ends of transmission shaft (338), first gear (337) and first rack toothing, second gear (502) and second rack (339) meshing, first gear (337) and second gear (502) one-way cooperation, second gear (502) are configured into and rotate along with first gear (337) only when tensile post (332) moves to being close to air pipe (300) middle part.
7. The apparatus for treating dust-containing exhaust gas from an animal feed production plant according to claim 6, wherein: the radius of rotation of the first gear (337) is greater than the radius of rotation of the second gear (502).
8. The apparatus for treating dust-containing exhaust gas from an animal feed production plant according to claim 2, wherein: the first filtering holes (3451) and the second filtering holes (3411) are strip-shaped holes extending along the vertical direction in the opposite direction, and the first filtering holes (3451) and the second filtering holes (3411) are the same in size and shape.
9. The apparatus for treating dust-containing exhaust gas from an animal feed production plant according to claim 2, wherein: the filter plate is characterized by also comprising an ash collecting hopper (400) and an air blowing mechanism (310), wherein the ash collecting hopper (400) is arranged below the ventilation pipeline (300) and is positioned on the windward side of the filter plate (340); the dust collecting hopper (400) is communicated with the inside of the ventilating duct (300); the blowing mechanism (310) is mounted on the ventilation duct (300) and used for blowing dust into the dust collecting hopper (400).
10. The apparatus for treating dust-containing exhaust gas from an animal feed production plant according to claim 4, wherein: the two sides of each limiting tooth (351) are inclined planes, and the gradient of the inclined plane of each limiting tooth (351) close to one side of the ventilation pipeline (300) is larger than the gradient of the inclined plane of each limiting tooth departing from one side of the ventilation pipeline (300).
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Inventor after: Sun Mingzhu Inventor after: Ou Wenbo Inventor after: Jiao Ruonan Inventor before: Ou Wenbo Inventor before: Jiao Ruonan |