CN117582749B - Air filtering equipment - Google Patents
Air filtering equipment Download PDFInfo
- Publication number
- CN117582749B CN117582749B CN202410073178.2A CN202410073178A CN117582749B CN 117582749 B CN117582749 B CN 117582749B CN 202410073178 A CN202410073178 A CN 202410073178A CN 117582749 B CN117582749 B CN 117582749B
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- Prior art keywords
- air
- filter bag
- pipe
- cylinder
- ring
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- 238000001914 filtration Methods 0.000 title claims abstract description 29
- 239000000428 dust Substances 0.000 claims abstract description 54
- 238000007664 blowing Methods 0.000 claims abstract description 50
- 238000004140 cleaning Methods 0.000 claims abstract description 36
- 238000009423 ventilation Methods 0.000 claims description 18
- 238000005192 partition Methods 0.000 claims description 16
- 230000002093 peripheral effect Effects 0.000 claims description 16
- 230000005389 magnetism Effects 0.000 claims description 13
- 238000011010 flushing procedure Methods 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 230000000903 blocking effect Effects 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 210000003437 trachea Anatomy 0.000 claims description 2
- 238000009825 accumulation Methods 0.000 abstract description 7
- 238000009826 distribution Methods 0.000 abstract description 4
- 229920000742 Cotton Polymers 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000004753 textile Substances 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 241000208202 Linaceae Species 0.000 description 2
- 235000004431 Linum usitatissimum Nutrition 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
Classifications
-
- 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
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
-
- 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
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention relates to the field of filters, in particular to air filtering equipment. The air filtering device comprises a shell, a filtering device and a cleaning device, wherein the filtering device comprises a supporting frame and a filter bag, the cleaning device comprises an air blowing cylinder, a piston, an air pipe, a backflushing group, a driving piece and an adjusting piece, when dust is excessive on the filter bag, the air pressure in a lower cavity is increased, the filter bag is concave, the air blowing quantity through the backflushing pipe is adjusted by a driving flow adjusting structure, the more dust on the surface of the filter bag is located, the concave degree of the filter bag is larger due to the air pressure, the larger the air blowing quantity of the backflushing pipe is located correspondingly, dust on the filter bag is cleaned rapidly, self-adaptive distribution of the flow of high-pressure air is realized according to the difference of dust accumulation quantities on the surface of the filter bag, and more high-pressure air flows are used for backflushing and cleaning the dust accumulation places, so that the air filtering device is more energy-saving and environment-friendly.
Description
Technical Field
The invention relates to the field of filters, in particular to air filtering equipment.
Background
An air filter is a device that traps dust from a gas-solid two-phase flow by the action of a porous filter material and allows the gas to be purified. In textile production, air in textile production workshops is often required to be filtered and purified so as to filter and remove more plant dust such as cotton, flax fibers and the like in the air. If the dust diffused in the air is not filtered and removed in time, cotton dust diseases of workers can be caused, and the health of the workers is threatened. The bag filter is suitable for capturing fine, dry and dust and is applied to air filtering and purifying equipment so as to filter and remove plant dust such as cotton, flax fiber and the like in a production workshop. The common bag filter mainly comprises a filter bag, wherein the filter bag is mostly made of woven filter cloth or non-woven filter felt, and the dust-containing gas is filtered by utilizing the filtering effect of fiber fabrics.
The prior art is Chinese patent with an improved cloth bag filter with publication No. CN110354591B, wherein a baffle plate is fixedly connected with the inside of a shell, a pressure storage mechanism is fixedly connected with the upper end of the baffle plate, the pressure storage mechanism stores high-pressure gas through a permanent magnet, when the ash on the surface area of the bag is more, the air filtering efficiency is increased, the air filtering plug is separated from the constraint of a permanent magnet ring to reversely blow the high-pressure gas from the inside of the bag after the air filtering efficiency is reduced, so that dust on the surface of the bag is blown off and removed, but the high-pressure gas flow cannot be adjusted according to the difference of the dust on the surface area of the bag, so that the bag is not convenient and energy-saving and environment-friendly.
Disclosure of Invention
The invention provides air filtering equipment, which solves the problem that the high-pressure air flow of the existing air purifying equipment cannot be adjusted adaptively according to the difference of ash amount on the surface area of a filter bag.
The invention relates to air filtering equipment, which adopts the following technical scheme: an air filtering device comprises a shell, a filtering device and a cleaning device; the shell is in a cylinder shape which is arranged up and down; a baffle is arranged in the shell; the baffle is fixedly connected to the shell to divide the interior of the shell into an upper cavity and a lower cavity; the baffle plate is provided with a vent hole for communicating the upper cavity with the lower cavity; the upper cavity is provided with an air outlet, and the lower cavity is provided with an air inlet; the filter device is positioned in the lower cavity and comprises a bracket and a filter bag; the bracket is fixed on the partition board; the filter bag is sleeved on the supporting frame, and the upper end of the filter bag is fixed on the partition board;
the cleaning device comprises a blowing cylinder, a piston, an air pipe, a recoil group, a driving piece and an adjusting piece; the blowing cylinder is vertically arranged in the shell and is positioned above the partition plate; the upper end of the air blowing cylinder is fixedly arranged on the shell and communicated with the outside; the piston is slidably arranged in the air blowing cylinder; the air pipe is vertically arranged, the upper end of the air pipe is fixedly arranged at the lower end of the air blowing pipe and communicated with the air blowing pipe, and the lower end of the air pipe passes through the vent hole and is arranged in the filter bag; the recoil groups are arranged in a plurality of ways and are arranged up and down at intervals along the air pipe; the recoil group comprises a plurality of recoil pipes which are uniformly distributed along the circumferential direction of the air pipe; the back flushing pipe is arranged along the radial direction of the air pipe, is fixed on the air pipe and is communicated with the air pipe; the driving piece is used for driving the piston to move downwards to compress air in the air blowing cylinder when excessive dust is on the filter bag, and blowing air to the filter bag from inside to outside through the back flushing pipe; the adjusting piece comprises an adjusting plate and a flow adjusting structure; the adjusting plate is fixed at the lower end of the filter bag; an adjusting spring is arranged between the adjusting plate and the air pipe and used for tensioning the filter bag; the flow regulating structure is arranged between the recoil pipe and the filter bag; the adjusting piece is configured to compress the adjusting spring to drive the adjusting plate to drive the lower end of the filter bag to move upwards when excessive dust is on the filter bag to increase the air pressure in the lower cavity, so that the filter bag is concave to drive the flow adjusting structure to adjust the air blowing amount of the backflushing pipe, and the more the dust is on the surface of the filter bag, the greater the concave degree of the corresponding position of the filter bag is, so that the air blowing amount of the backflushing pipe at the corresponding position is greater.
Further, the piston has magnetism; the driving piece comprises an upper electromagnetic ring, a lower electromagnetic ring and a triggering structure; the upper electromagnetic ring is fixed at the upper end of the air blowing cylinder; the lower electromagnetic ring is fixed at the lower end of the air blowing cylinder; the triggering structure is used for enabling the piston to be separated from the upper electromagnetic ring when excessive dust is on the filter bag, and rapidly extruding air in the air blowing cylinder under the driving of the lower electromagnetic ring.
Further, the triggering structure comprises a baffle ring and a button; the baffle ring is arranged in the upper cavity and is positioned above the vent hole; the baffle ring is sleeved on the air pipe in a sliding way; a trigger spring is connected between the baffle ring and the baffle plate and used for driving the baffle ring to move downwards when excessive dust is on the filter bag, so as to realize the blocking of the vent hole; the outside of the baffle ring is provided with a guide cylinder; the guide cylinder is funnel-shaped; the guide cylinder is coaxially sleeved outside the air pipe; the small end of the guide cylinder is fixed on the baffle; the guide cylinder is communicated with the vent hole; the button is arranged between the baffle plate and the baffle ring, and is arranged at the bottom of the guide cylinder in a vertically sliding manner; a reset spring is connected between the button and the guide cylinder, and the reset spring enables the button to move up to a preset distance; the button is a single-pole double-throw switch, and the upper electromagnetic ring is electrified when the button is moved up by a preset distance, and the lower electromagnetic ring is electrified when the button is moved down by a preset distance.
Further, the support frame comprises a plurality of support rod groups which are arranged at intervals up and down along the trachea;
the stay bar group comprises a plurality of long bars; a plurality of long rods are uniformly distributed along the circumferential direction of the air pipe; the long rod is arranged along the radial direction of the air pipe; the inner end of the long rod is fixed on the air pipe, and the outer end is provided with a supporting ring; the supporting ring is sleeved outside the air pipe and fixedly arranged at the outer end of the long rod; the filter bag is sleeved on the supporting ring.
Further, the flow regulating structure comprises a slide bar, a push rod and a baffle plate group; the baffle plate group is arranged in the back flushing pipe and comprises a fixed plate and a movable plate; the number of the fixing plates is three, and the fixing plates are distributed at intervals along the circumferential direction of the recoil pipe; the fixed plate is fan-shaped, and the large end of the fixed plate is fixed on the inner peripheral wall of the backwash tube; the movable plates are three and are distributed at intervals along the circumferential direction of the recoil pipe; the movable plate is in a fan shape; the movable plate is abutted with the fixed plate, the large end is rotatably arranged on the inner peripheral wall of the backwash tube, and the small end is provided with a matching cylinder; the matching cylinder and the recoil pipe are coaxially arranged; the peripheral wall of the matching cylinder is fixedly connected with the small end of the movable plate; spiral bulges are arranged on the inner peripheral wall of the matching cylinder; the sliding rod is vertically arranged between two adjacent long rods, and is abutted against the inner wall of the filter bag in the initial state; the sliding rod is slidably arranged on the long rod; the push rod is arranged along the axial line of the recoil tube and is positioned between the slide rod and the air tube; one end of the push rod is fixedly connected to the slide rod, and the other end of the push rod is inserted into the matching cylinder; the peripheral wall of the push rod is provided with a spiral groove; the spiral protrusion is slidably mounted in the spiral groove.
Further, a T-shaped chute is arranged on the long rod; the two ends of the sliding rod are fixed with T-shaped sliding blocks; the sliding block is slidably arranged in the sliding groove.
Further, a plurality of vent holes are formed and uniformly distributed along the circumferential direction of the shell; the plurality of filtering devices are uniformly distributed along the circumferential direction of the shell and correspond to the ventilation holes one by one; the cleaning device is provided with a plurality of cleaning devices which are uniformly distributed along the circumferential direction of the shell and are in one-to-one correspondence with the vent holes.
Further, the upper end of the shell is provided with a plurality of through holes; the through hole is arranged on the upper side of the air blowing cylinder.
Further, the lower section of the shell is funnel-shaped with the small end facing downwards.
Further, a collecting cylinder is arranged at the lower end of the shell; the collecting cylinder and the shell are detachably arranged.
The beneficial effects of the invention are as follows: the adjusting spring is used for tensioning the filter bag, when dust is too much on the filter bag, when the air pressure in the lower cavity is increased, the adjusting spring is compressed to drive the adjusting plate to drive the lower end of the filter bag to move upwards, so that the filter bag is concave, the flow adjusting structure is driven to adjust the blowing amount through the backwash tube, the more dust on the surface of the filter bag is located, the greater the concave degree of the filter bag is caused by the air pressure, the greater the blowing amount of the backwash tube is, the dust on the filter bag is cleaned rapidly, the self-adaptive distribution of the flow of high-pressure gas is realized according to the difference of dust accumulation amounts on the surface of the filter bag, and more high-pressure air flows are used for backflushing and cleaning the places with more dust accumulation, so that the filter bag is more energy-saving and environment-friendly.
Further, when dust on the surface of the filter bag is blown off, the ventilation volume of the filter bag is increased, the air pressure of the lower cavity is reduced, the adjusting spring drives the adjusting plate to reset rapidly, the filter bag is rapidly tensioned and supported, so that dust remained on the filter bag is shaken off, and the cleaning effect is further improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic illustration of an apparatus of an embodiment of an air cleaning device of the present invention;
FIG. 2 is a front view of an embodiment of the present invention;
FIG. 3 is a cross-sectional view at A-A in FIG. 2;
FIG. 4 is an exploded view of an embodiment of the present invention;
FIG. 5 is a schematic view of the structure of a filter device and a cleaning device according to an embodiment of the present invention;
FIG. 6 is a cross-sectional view at B-B in FIG. 5;
FIG. 7 is an enlarged view of FIG. 6 at X;
FIG. 8 is a front view of a housing of an embodiment of the present invention;
FIG. 9 is a cross-sectional view taken at C-C of FIG. 8;
fig. 10 is a schematic view of the structure of the air cylinder, air tube and bracket according to the embodiment of the present invention.
In the figure: 100. a housing; 110. an air outlet; 120. an air inlet; 130. a collection cylinder; 140. a partition plate; 200. a filtering device; 210. a filter bag; 220. a supporting frame; 221. a long rod; 222. a support ring; 300. a cleaning device; 310. a blowing cylinder; 320. a piston; 330. an air pipe; 340. a backwash tube; 351. electrifying a magnetic ring; 352. a electromagnet ring is arranged; 361. a baffle ring; 362. a button; 363. a guide cylinder; 371. an adjusting plate; 372. an adjusting spring; 381. a slide bar; 382. a push rod; 383. a fixing plate; 384. a movable plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
An embodiment of an air cleaning apparatus of the present invention is shown in fig. 1 to 10: an air cleaning apparatus includes a housing 100, a filtering device 200, and a cleaning device 300.
The housing 100 has a cylindrical shape provided vertically. A horizontally disposed partition 140 is disposed within the housing 100. The partition 140 is fixedly coupled to the housing 100 to divide the interior of the housing 100 into an upper chamber and a lower chamber. The partition 140 is provided with a vent hole to communicate the upper chamber with the lower chamber. The upper chamber is provided with an air outlet 110 and the lower chamber is provided with an air inlet 120. The filter assembly 200 is within the lower chamber and includes a bracket 220 and a filter bag 210. The bracket 220 is fixed to the partition 140. The filter bag 210 is sleeved on the bracket 220, and the upper end is fixed on the partition 140. As air passes through the filter bag 210 from the outside of the filter bag 210 to the inside of the filter bag 210, contaminants within the air remain on the outside surface of the filter bag 210. The cleaning device 300 includes a gas cartridge 310, a piston 320, a gas tube 330, a recoil assembly, a driving member, and an adjusting member. The air blowing cylinder 310 is vertically disposed within the housing 100 above the partition 140; the upper end of the air blowing tube 310 is fixedly installed on the housing 100 and communicates with the outside. The piston 320 is slidably mounted within the air cylinder 310. The air pipe 330 is vertically arranged, the upper end of the air pipe is fixedly arranged at the lower end of the air blowing cylinder 310 and is communicated with the air blowing cylinder 310, and the lower end of the air pipe passes through the vent hole and is arranged in the filter bag 210.
The recoil groups are provided in plural numbers and are arranged at intervals up and down the air pipe 330. The recoil group includes a plurality of recoil tubes 340 uniformly distributed along the circumference of the gas tube 330. The backwash tube 340 is radially provided along the air tube 330 and fixed to the air tube 330 and communicates with the air tube 330.
The driving member is used to drive the piston 320 to move down to compress the air in the air cylinder 310 when the dust on the filter bag 210 is excessive, and blow the filter bag 210 from inside to outside through the backwash tube 340.
The adjusting member includes an adjusting plate 371 and a flow adjusting structure. An adjustment plate 371 is secured to the lower end of the filter bag 210. An adjusting spring 372 is provided between the adjusting plate 371 and the air tube 330 for tensioning the filter bag 210. The flow regulating structure is disposed between the backwash tube 340 and the filter bag 210. The adjusting member is configured to compress the adjusting spring 372 to drive the adjusting plate 371 to drive the lower end of the filter bag 210 to move upward when the dust on the filter bag 210 is excessive, so that the filter bag 210 is concave to drive the flow adjusting structure to adjust the blowing amount of the backflushing tube 340, and the more dust is on the surface of the filter bag 210, the greater the concave degree of the corresponding position of the filter bag 210 is, so that the greater the blowing amount of the backflushing tube 340 is. When the dust on the filter bag 210 is too much, so that the air pressure in the lower cavity is increased, the adjusting spring 372 is compressed to drive the adjusting plate 371 to drive the lower end of the filter bag 210 to move upwards, so that the filter bag 210 is concaved inwards, the flow adjusting structure is driven to adjust the blowing amount through the backwash tube 340, and the more dust on the surface of the filter bag 210 is located, the greater the concave degree of the filter bag 210 is caused by the air pressure, so that the blowing amount of the backwash tube 340 is greater at the corresponding position, the dust on the filter bag 210 is cleaned rapidly, the self-adaptive distribution of the flow of high-pressure air is realized according to the difference of dust accumulation amounts on the surface of the filter bag 210, and more high-pressure air flows are enabled to perform backwash cleaning on the place with more dust accumulation, so that the filter bag 210 is more energy-saving and environment-friendly.
In this embodiment, the piston 320 has magnetism. The drive member includes an upper electromagnetic ring 351, a lower electromagnetic ring 352 and a trigger structure. The upper electromagnetic ring 351 is fixed to the upper end of the air blowing cylinder 310. The lower electromagnetic ring 352 is fixed to the lower end of the air blowing tube 310. The trigger structure is used for switching off the upper electromagnetic ring 351 to disengage the piston 320 from the upper electromagnetic ring 351 when excessive dust is present on the filter bag 210, and rapidly squeezing air in the air cylinder 310 under the driving of the lower electromagnetic ring 352, and backflushing the filter bag 210 through the air pipe 330 and the backflushing pipe 340.
In this embodiment, the trigger structure includes a catch ring 361 and a button 362. The baffle ring 361 is disposed in the upper cavity above the vent hole. The baffle ring 361 is slidably sleeved on the air pipe 330. The trigger spring is connected between the baffle ring 361 and the partition 140, when the air filtering device is not ventilated, the trigger spring enables the baffle ring 361 to be kept in the ventilation hole and seals the ventilation hole, when the air filtering device is started, more air flow is introduced into the lower cavity, so that the air pressure in the lower cavity is larger than the air pressure in the upper cavity, when the air with larger pressure in the lower cavity reaches the ventilation hole after being filtered by the filter bag 210, the thrust acting on the lower end face of the baffle ring 361 overcomes the pulling force of the trigger spring to blow the baffle ring 361 up and moves up along the air pipe 330, so that the air in the lower cavity enters the upper cavity, when the dust on the filter bag 210 is excessive, the efficiency of the air in the lower cavity passing through the filter bag 210 is lowered, the air quantity of the lower cavity passing through the filter bag 210 is lowered, the air pressure of the ventilation hole after being filtered by the filter bag 210 is lowered, the thrust acting on the lower end face of the baffle ring 361 is correspondingly lowered, and when the thrust acting on the lower end face of the baffle ring 361 is correspondingly lowered to a certain quantity, the thrust acting on the lower end face of the baffle ring 361 is insufficient to trigger spring to pull the trigger ring 361, and the trigger ring is pulled down to seal the ventilation hole. A guide cylinder 363 is arranged outside the baffle ring 361. The guide cylinder 363 is funnel-shaped. The guide cylinder 363 is coaxially sleeved outside the air tube 330. The smaller end of the guide shell 363 is fixed on the partition 140. The flow sleeve 363 is in communication with the vent.
A button 362 is provided between the partition 140 and the baffle ring 361, and the button 362 is slidably installed at the bottom of the guide cylinder 363 up and down. A return spring is connected between the button 362 and the guide cylinder 363, the button 362 is pressed to the bottom of the guide cylinder 363, after the pressing force is removed, the return spring enables the button 362 to move upwards from the bottom of the guide cylinder 363 to a preset position by a preset distance, and when the device of the invention is not ventilated, the trigger spring pulls the baffle ring 361 downwards to the bottom of the guide cylinder 363, and the button 362 is returned to the bottom of the guide cylinder 363 after being pressed downwards from the preset position by a preset distance.
The button 362 is a single pole double throw switch, and energizes the upper electromagnetic ring 351 when moving up a preset distance to a preset position, energizes the lower electromagnetic ring 352 when moving down a preset distance from the preset position back to the bottom of the guide cylinder 363, and does not energize the button 362 when one of the air filtering apparatus of the present invention is not ventilated, and does not energize the button 362 until the pressure on the button 362 is lost after the air flow lifts up the baffle ring 361 after the one of the air filtering apparatus of the present invention is started. The button 362 moves up to a preset position by a preset distance under the release of the restoring force of the restoring spring, so that the upper electromagnetic ring 351 is electrified to have magnetism, and the upper electromagnetic ring 351 drives the piston 320 to move up and be adsorbed with the piston 320.
When dust on the surface of the filter bag 210 is excessively accumulated, the ventilation volume of the filter bag 210 is insufficient, on one hand, the baffle ring 361 is driven by the trigger spring to move downwards and press the button 362 downwards, so that the button 362 is driven to move downwards for a preset distance to the bottom of the guide cylinder 363, the upper electromagnetic ring 351 is powered off to lose magnetism, the lower electromagnetic ring 352 is powered on to have magnetism, and the lower electromagnetic ring 352 drives the piston 320 to move downwards rapidly and compress air in the air blowing cylinder 310 to form high-pressure air because the baffle ring 361 at the moment is at the position for blocking the ventilation hole.
In this embodiment, the strut 220 includes a plurality of strut sets disposed at intervals up and down the air tube 330. The stay set includes a plurality of long rods 221. The plurality of long rods 221 are uniformly distributed along the circumference of the air pipe 330. The long rod 221 is disposed radially along the air tube 330. The inner end of the long rod 221 is fixed on the air pipe 330, and the outer end is provided with a supporting ring 222. The stay ring 222 is sleeved outside the air pipe 330 and fixedly installed at the outer end of the long rod 221. The filter bag 210 is sleeved on the supporting rings 222, and is used for making the filter bag 210 concave inwards between two adjacent supporting rings 222 when excessive dust is accumulated on the surface of the filter bag 210.
In this embodiment, the flow regulating structure includes a slide bar 381, a push bar 382, and a baffle group. The baffle group is provided in the recoil tube 340, and includes a fixed plate 383 and a movable plate 384. The number of the fixing plates 383 is three, and the fixing plates are distributed at intervals along the circumferential direction of the backwash tube 340. The fixing plate 383 has a fan shape, and the large end is fixed to the inner peripheral wall of the kick-pipe 340. The movable plate 384 is provided with three plates which are circumferentially spaced along the backwash tube 340. The movable plate 384 has a fan shape. The movable plate 384 is abutted with the fixed plate 383, the large end is rotatably mounted on the inner peripheral wall of the backwash tube 340, the small end is provided with a matching cylinder, and the preset overlapping part between the fixed plate 383 and the movable plate 384 is smaller, so that the overlapping area between the fixed plate 383 and the movable plate 384 is increased along with the rotation of the movable plate 384. The mating cylinder is coaxially disposed with the recoil tube 340. The peripheral wall of the matching cylinder is fixedly connected with the small ends of the movable plates 384, and the included angle between the three movable plates is sixty degrees. Spiral bulges are arranged on the inner peripheral wall of the matching cylinder.
The slide bar 381 is vertically disposed between the adjacent two long bars 221, and the slide bar 381 abuts against the inner wall of the filter bag 210 in an initial state. The slide bar 381 is slidably mounted on the long bar 221.
The push rod 382 is disposed along the recoil tube 340 axis and is positioned between the slide rod 381 and the air tube 330. One end of the push rod 382 is fixedly connected to the slide rod 381, and the other end is inserted into the matching cylinder. The outer peripheral wall of the push rod 382 is provided with a spiral groove. The spiral bulge on the inner peripheral wall of the matching cylinder is slidably arranged in the spiral groove, when the filter bag 210 is concaved inwards between two adjacent supporting rings 222, the concave fold of the filter bag 210 drives the sliding rod 381 to drive the push rod 382 to slide towards the air pipe 330, the push rod 382 drives the movable plate 384 to rotate through the sliding fit of the spiral groove and the spiral bulge, and as the fixed plate 383 and the movable plate 384 rotate, the superposition between the fixed plate 383 and the movable plate 384 is increased along with the rotation of the movable plate 384, so that the airflow throughput of the recoil pipe 340 is changed, and the rotation angle of the movable plate 384 is not more than sixty degrees through setting the spiral bulge pitch, so that the superposition area of the movable plate 384 and the fixed plate 383 is not increased and then reduced firstly during recoil.
In this embodiment, the long rod 221 is provided with a T-shaped chute. And T-shaped sliding blocks are fixed at two ends of the sliding rod 381. The sliding block is slidably mounted in the sliding slot for preventing interference between two adjacent sliding rods 381.
In this embodiment, a plurality of ventilation holes are provided and are uniformly distributed along the circumference of the housing 100. The filtering device 200 is provided with a plurality of filtering devices which are uniformly distributed along the circumferential direction of the shell 100 and are in one-to-one correspondence with the ventilation holes. The cleaning device 300 is provided with a plurality of cleaning devices which are uniformly distributed along the circumferential direction of the housing 100 and are in one-to-one correspondence with the ventilation holes so as to have higher air filtering efficiency and independently clean the cleaning devices according to the dust amount on the surfaces of the respective filter bags 210.
In this embodiment, the upper end of the housing 100 is provided with a plurality of through holes. A through hole is provided at an upper side of the air blowing cylinder 310 for communicating the air blowing cylinder 310 with the outside.
In this embodiment, the lower section of the housing 100 is funnel-shaped with a downward small end, so as to collect dust and facilitate later cleaning.
In this embodiment, the lower end of the housing 100 is fitted with a collection canister 130. The collecting cylinder 130 and the shell 100 are in threaded fit, and the collecting cylinder 130 is detached for cleaning after dust cleaning.
In combination with the above embodiment, the use principle and working process of the present invention are as follows: in use, the exhaust fan of the textile workshop introduces air containing dust into the air inlet 120, the air enters the lower cavity, is filtered by the filter bag 210, enters the upper cavity through the vent hole, and is discharged through the air outlet 110. After the air flow lifts up the baffle ring 361, the button 362 is electrified, and the button 362 moves upwards under the drive of the reset spring, so that the upper electromagnetic ring 351 is electrified to have magnetism, and the upper electromagnetic ring 351 drives the piston 320 to move upwards and be adsorbed with the piston 320 into a whole.
When dust accumulates on the surface of the filter bag 210 too much, so that the ventilation of the filter bag 210 is insufficient, the baffle ring 361 moves downwards under the driving of the trigger spring, so that the button 362 moves downwards, the upper electromagnetic ring 351 is powered off to lose magnetism, and the lower electromagnetic ring 352 is powered on to have magnetism, the lower electromagnetic ring 352 drives the piston 320 to move downwards rapidly and compresses air in the air blowing cylinder 310 to form high-pressure air, and the high-pressure air flows into the back flushing pipe 340 through the air pipe 330 and blows the filter bag 210 from inside to outside through the back flushing pipe 340.
Meanwhile, the ventilation quantity of the filter bag 210 is insufficient to increase the air pressure of the lower cavity, the adjusting spring 372 is compressed to drive the adjusting plate 371 to drive the lower end of the filter bag 210 to move upwards, so that the filter bag 210 is concaved inwards between two adjacent supporting rings 222, the concave fold of the filter bag 210 drives the sliding rod 381 to drive the push rod 382 to slide towards the air pipe 330, the push rod 382 drives the movable plate 384 to rotate through the sliding fit of the spiral groove and the spiral protrusion, and accordingly the air flow quantity of the backwash tube 340 is changed, and the more dust on the surface of the filter bag 210 is, the smaller the air flow quantity is. Under the pressure pushing of the lower chamber gradually becoming larger, the blocking force of the air on the surface of the filter bag 210 to the air flow is smaller at the place where the flow rate of the air on the surface of the filter bag 210 is larger than at the place where the flow rate of the air on the surface of the filter bag 210 is larger, the concave degree at the corresponding position of the filter bag 210 is larger, the larger the displacement amount of the push rod 382 sliding towards the air pipe 330 is, the larger the rotation angle of the movable plate 384 is driven, the larger the overlapping part between the fixed plate 383 and the movable plate 384 is, and the larger the air flow throughput of the backwash pipe 340 at the corresponding position is also.
Because the preset overlapping portion between the fixed plate 383 and the movable plate 384 is smaller, along with the rotation of the movable plate 384, the overlapping between the fixed plate 383 and the movable plate 384 increases, so that the more the movable plate 384 overlaps with the fixed plate 383, the more the gap between the movable plate 384 overlaps with the gap between the fixed plate 383, so that the larger the air blowing amount of the corresponding backflushing pipe 340 is, the self-adaptive distribution of the flow of the high-pressure air according to the difference of the dust accumulation amounts on the surface of the filter bag 210 is realized, and the more high-pressure air flows are used for backflushing and cleaning the places with more accumulated dust, thereby being more energy-saving and environment-friendly. And when dust on the surface of the filter bag 210 is blown off, the ventilation volume of the filter bag 210 is increased, the air pressure of the lower cavity is reduced, and the regulating spring 372 drives the regulating plate 371 to quickly reset, so that the filter bag 210 is quickly tensioned and supported, and dust remained on the filter bag 210 is shaken off, and the cleaning effect is further improved.
When the dust on the filter bag 210 is cleaned, the ventilation volume of the filter bag 210 rises to drive the baffle ring 361 to rise, so that the button 362 rises, and the upper electromagnetic ring 351 is electrified to have magnetism to drive the piston 320 to move upwards to reset.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (7)
1. An air cleaning apparatus, characterized in that: comprises a shell, a filtering device and a cleaning device;
the shell is in a cylinder shape which is arranged up and down; a baffle is arranged in the shell; the baffle is fixedly connected to the shell to divide the interior of the shell into an upper cavity and a lower cavity; the baffle plate is provided with a vent hole for communicating the upper cavity with the lower cavity; the upper cavity is provided with an air outlet, and the lower cavity is provided with an air inlet;
the filter device is positioned in the lower cavity and comprises a bracket and a filter bag; the bracket is fixed on the partition board; the filter bag is sleeved on the supporting frame, and the upper end of the filter bag is fixed on the partition board;
the cleaning device comprises a blowing cylinder, a piston, an air pipe, a recoil group, a driving piece and an adjusting piece;
the blowing cylinder is vertically arranged in the shell and is positioned above the partition plate; the upper end of the air blowing cylinder is fixedly arranged on the shell and communicated with the outside;
the piston is slidably arranged in the air blowing cylinder;
the air pipe is vertically arranged, the upper end of the air pipe is fixedly arranged at the lower end of the air blowing pipe and communicated with the air blowing pipe, and the lower end of the air pipe passes through the vent hole and is arranged in the filter bag;
the recoil groups are arranged in a plurality of ways and are arranged up and down at intervals along the air pipe; the recoil group comprises a plurality of recoil pipes which are uniformly distributed along the circumferential direction of the air pipe; the back flushing pipe is arranged along the radial direction of the air pipe, is fixed on the air pipe and is communicated with the air pipe;
the driving piece is used for driving the piston to move downwards to compress air in the air blowing cylinder when excessive dust is on the filter bag, and blowing air to the filter bag from inside to outside through the back flushing pipe;
the adjusting piece comprises an adjusting plate and a flow adjusting structure; the adjusting plate is fixed at the lower end of the filter bag; an adjusting spring is arranged between the adjusting plate and the air pipe and used for tensioning the filter bag; the flow regulating structure is arranged between the recoil pipe and the filter bag; the adjusting piece is configured to compress the adjusting spring to drive the adjusting plate to drive the lower end of the filter bag to move upwards when the dust on the filter bag is too much to increase the air pressure in the lower cavity, so that the filter bag is concave to drive the flow adjusting structure to adjust the air blowing amount of the backflushing pipe, and the more the dust on the surface of the filter bag is, the greater the concave degree of the corresponding position of the filter bag is, so that the air blowing amount of the backflushing pipe at the corresponding position is greater;
the strut comprises a plurality of strut groups which are arranged at intervals up and down along the trachea;
the stay bar group comprises a plurality of long bars; a plurality of long rods are uniformly distributed along the circumferential direction of the air pipe; the long rod is arranged along the radial direction of the air pipe; the inner end of the long rod is fixed on the air pipe, and the outer end is provided with a supporting ring; the supporting ring is sleeved outside the air pipe and fixedly arranged at the outer end of the long rod; the filter bag is sleeved on the supporting ring;
the flow regulating structure comprises a slide bar, a push rod and a baffle plate group;
the baffle plate group is arranged in the back flushing pipe and comprises a fixed plate and a movable plate;
the number of the fixing plates is three, and the fixing plates are distributed at intervals along the circumferential direction of the recoil pipe; the fixed plate is fan-shaped, and the large end of the fixed plate is fixed on the inner peripheral wall of the backwash tube;
the movable plates are three and are distributed at intervals along the circumferential direction of the recoil pipe; the movable plate is in a fan shape; the movable plate is abutted with the fixed plate, the large end is rotatably arranged on the inner peripheral wall of the backwash tube, and the small end is provided with a matching cylinder; the matching cylinder and the recoil pipe are coaxially arranged; the peripheral wall of the matching cylinder is fixedly connected with the small end of the movable plate; spiral bulges are arranged on the inner peripheral wall of the matching cylinder;
the sliding rod is vertically arranged between two adjacent long rods, and is abutted against the inner wall of the filter bag in the initial state; the sliding rod is slidably arranged on the long rod;
the push rod is arranged along the axial line of the recoil tube and is positioned between the slide rod and the air tube; one end of the push rod is fixedly connected to the slide rod, and the other end of the push rod is inserted into the matching cylinder; the peripheral wall of the push rod is provided with a spiral groove; the spiral bulge is slidably arranged in the spiral groove; the more dust on the surface of the filter bag, the greater the concave degree of the corresponding position of the filter bag, the greater the displacement of the push rod sliding to the air pipe, the greater the rotation angle of the movable plate is driven, the greater the superposition part between the fixed plate and the movable plate is, and the greater the airflow throughput of the backwash pipe at the corresponding position is.
2. An air cleaning apparatus according to claim 1, wherein: the piston has magnetism; the driving piece comprises an upper electromagnetic ring, a lower electromagnetic ring and a triggering structure; the upper electromagnetic ring is fixed at the upper end of the air blowing cylinder; the lower electromagnetic ring is fixed at the lower end of the air blowing cylinder; the triggering structure is used for enabling the piston to be separated from the upper electromagnetic ring when excessive dust is on the filter bag, and rapidly extruding air in the air blowing cylinder under the driving of the lower electromagnetic ring;
the triggering structure comprises a baffle ring and a button; the baffle ring is arranged in the upper cavity and is positioned above the vent hole; the baffle ring is sleeved on the air pipe in a sliding way; a trigger spring is connected between the baffle ring and the baffle plate, the trigger spring is used for enabling the baffle ring to be kept in the vent hole when the air is not ventilated and blocking the vent hole, when air with high pressure in the lower cavity reaches the vent hole after being filtered by the filter bag, the thrust acting on the lower end surface of the baffle ring overcomes the tensile force of the trigger spring to blow the baffle ring and moves upwards along the air pipe, the air quantity passing through the filter bag in the lower cavity is reduced, and the baffle ring is pulled downwards by the trigger spring and blocking the vent hole;
the outside of the baffle ring is provided with a guide cylinder; the guide cylinder is funnel-shaped; the guide cylinder is coaxially sleeved outside the air pipe; the small end of the guide cylinder is fixed on the baffle; the guide cylinder is communicated with the vent hole; the button is arranged between the baffle plate and the baffle ring, and is arranged at the bottom of the guide cylinder in a vertically sliding manner; a reset spring is connected between the button and the guide cylinder, and the reset spring enables the button to move up to a preset distance; the button is a single-pole double-throw switch, and the upper electromagnetic ring is electrified when the button is moved up by a preset distance, and the lower electromagnetic ring is electrified when the button is moved down by a preset distance; after the air flow pushes up the baffle ring, the pressing force on the button disappears, and then the button is electrified; the button moves upwards to a preset position by a preset distance under the drive of the release force of the reset spring, so that the upper electromagnetic ring is electrified to have magnetism, and the upper electromagnetic ring drives the piston to move upwards and is adsorbed with the piston into a whole; when the ventilation capacity of the filter bag is insufficient, the baffle ring moves downwards and pushes the button downwards under the drive of the trigger spring, so that the button is driven to move downwards by a preset distance to the bottom of the guide cylinder, the upper electromagnetic ring is powered off to lose magnetism, the lower electromagnetic ring is powered on to have magnetism, and the lower electromagnetic ring drives the piston to move downwards rapidly and compress air in the air blowing cylinder to form high-pressure air.
3. An air cleaning apparatus according to claim 2, wherein: the long rod is provided with a T-shaped chute; the two ends of the sliding rod are fixed with T-shaped sliding blocks; the sliding block is slidably arranged in the sliding groove.
4. An air cleaning apparatus according to any one of claims 1 to 3, wherein: the vent holes are arranged in a plurality of ways and uniformly distributed along the circumferential direction of the shell; the plurality of filtering devices are uniformly distributed along the circumferential direction of the shell and correspond to the ventilation holes one by one; the cleaning device is provided with a plurality of cleaning devices which are uniformly distributed along the circumferential direction of the shell and are in one-to-one correspondence with the vent holes.
5. An air cleaning apparatus according to claim 1, wherein: the upper end of the shell is provided with a plurality of through holes; the through hole is arranged on the upper side of the air blowing cylinder.
6. An air cleaning apparatus according to claim 1, wherein: the lower section of the shell is funnel-shaped with the small end facing downwards.
7. An air cleaning apparatus according to claim 1, wherein: the lower end of the shell is provided with a collecting cylinder; the collecting cylinder and the shell are detachably arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410073178.2A CN117582749B (en) | 2024-01-18 | 2024-01-18 | Air filtering equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410073178.2A CN117582749B (en) | 2024-01-18 | 2024-01-18 | Air filtering equipment |
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| Publication Number | Publication Date |
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| CN117582749A CN117582749A (en) | 2024-02-23 |
| CN117582749B true CN117582749B (en) | 2024-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202410073178.2A Active CN117582749B (en) | 2024-01-18 | 2024-01-18 | Air filtering equipment |
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| CN117920563B (en) * | 2024-03-21 | 2024-06-04 | 泸州东方农化有限公司 | Herbicide production screening device and screening method |
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| CN110354591A (en) * | 2019-08-08 | 2019-10-22 | 刘术毅 | A kind of modified bag filter |
| CN219764776U (en) * | 2023-04-25 | 2023-09-29 | 恒果(济南)科技有限公司 | Cloth bag type flue gas dust remover |
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| CN101480550A (en) * | 2008-01-08 | 2009-07-15 | 张一飞 | Intelligent high-efficient bag dust collector and method for blowing and cleaning dust thereof |
| KR20110108044A (en) * | 2010-03-26 | 2011-10-05 | 고등기술연구원연구조합 | Dust collector for minimizing a reverse-cleaning effect |
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|---|---|
| CN117582749A (en) | 2024-02-23 |
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