CN114225575B - Metal filter bag and bag type dust collector - Google Patents
Metal filter bag and bag type dust collector Download PDFInfo
- Publication number
- CN114225575B CN114225575B CN202210074172.8A CN202210074172A CN114225575B CN 114225575 B CN114225575 B CN 114225575B CN 202210074172 A CN202210074172 A CN 202210074172A CN 114225575 B CN114225575 B CN 114225575B
- Authority
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- Prior art keywords
- bag body
- metal filter
- filter bag
- bag
- sleeve
- Prior art date
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- 239000002184 metal Substances 0.000 title claims abstract description 73
- 239000000428 dust Substances 0.000 title claims abstract description 45
- 238000004140 cleaning Methods 0.000 claims abstract description 49
- 239000007769 metal material Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 239000000835 fiber Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 239000004744 fabric Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance 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
- 239000000243 solution Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 230000037303 wrinkles 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
-
- 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
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4227—Manipulating filters or filter elements, e.g. handles or extracting tools
-
- 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
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/48—Removing dust other than cleaning filters, e.g. by using collecting trays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The application relates to a metal filter bag and a bag type dust collector, wherein the metal filter bag comprises a bag body made of metal, a cleaning brush and a driving part, wherein the cleaning brush and the driving part are arranged in the bag body, a cover plate is arranged at the top end of the bag body in a sealing manner, a central shaft is arranged in the bag body along the axial direction of the cleaning brush, the length of the cleaning brush is matched with the length of the bag body, the driving part comprises a driving part and a support, one end of the support can rotate around the central shaft, the other end of the support is connected with the cleaning brush, and the support can drive the cleaning brush to rotate on the inner surface of the bag body under the action of the driving part. Can carry out effectual online deashing operation to the metal filter bag to guarantee that the bag collector can stably, high-efficient operation.
Description
Technical Field
The application relates to the technical field of dust removing equipment, in particular to a metal filter bag and a bag type dust remover.
Background
The bag type dust collector has the advantages of high efficiency for collecting full-size particles, high collecting efficiency, long-term stability, low emission and the like, and is not influenced by the dust characteristics, so that the bag type dust collector is widely popularized and applied.
Today, in the chemical, metallurgical, building, glass and other industries, high temperature dust laden fumes are often produced, typically at temperatures above 260 ℃. According to the process requirement, the dust-containing flue gas needs to be dedusted under the high-temperature working condition, the material performance of the traditional cloth fiber filter bag can not meet the flue gas working condition requirement, the metal filter bag is easy to develop, and the application field of the bag type dust collector in high-temperature dust collection is greatly developed.
In the prior art, for a conventional cloth fiber filter bag, two online ash removal modes of pulse valve injection compressed air ash removal and mechanical vibration ash removal are generally adopted. For the metal filter bag, because the metal filter bag is manufactured by adopting metal fibers through processes such as sintering and layering, the strength is relatively high, the metal filter bag is hard and firm, the filter bag is easy to damage by mechanically beating and ash removal, compressed air is sprayed towards the mouth of the filter bag by timing control pulse valve during pulse ash removal, the filter bag is shrunken through instant bulge, deformation is generated, and ash on the surface of the filter bag falls off, and the metal filter bag is not suitable for ash removal of the metal filter bag.
Therefore, how to perform effective online ash removal operation on the bag type dust collector adopting the metal filter bag so as to ensure that the bag type dust collector can stably and efficiently operate is a technical problem which needs to be solved by a person skilled in the art.
Disclosure of Invention
The application aims to provide a metal filter bag and a bag type dust collector, which can carry out effective online dust cleaning operation on the metal filter bag so as to ensure that the bag type dust collector can stably and efficiently operate.
The application provides a metal filter bag, which comprises a bag body made of metal, a cleaning brush and a driving part, wherein the cleaning brush and the driving part are arranged in the bag body, a cover plate is arranged at the top end of the bag body in a sealing manner, a central shaft is arranged in the bag body along the axial direction of the bag body, the length of the cleaning brush is matched with the length of the bag body, the driving part comprises a driving part and a support, one end of the support can rotate around the central shaft, the other end of the support is connected with the cleaning brush, and the support can drive the cleaning brush to be attached to the inner surface of the bag body to rotate under the action of the driving part.
Set up drive division in the metal filter bag, rotate around the center pin through driving piece drive support to drive the cleaning brush laminating in the internal surface rotation of the bag body, at this in-process, the cleaning brush can rub with the internal surface of the bag body, and clean the dust that will deposit in the internal surface of bag, make dust and the internal surface of bag break away from, avoid the bag body to take place the condition of jam, reduce the resistance of metal filter bag, guarantee that the bag collector can long-time steady operation.
Optionally, the bag further comprises an inner cylinder arranged in the bag body, the inner cylinder is coaxial with the central shaft, an annular supporting piece is connected between the outer wall of the inner cylinder and the inner wall of the bag body, through holes are uniformly formed in the side wall of the inner cylinder, the inner cylinder is of a sectional structure, and the support can penetrate through gaps between two adjacent sections of the inner cylinders.
Optionally, the opening ratio of the inner cylinder is 40% -50%.
Optionally, the cleaning brush is a metal brush, and the inner cylinder is a metal cylinder.
Optionally, the driving piece includes the sleeve pipe and follows the blade that the sleeve pipe periphery evenly set up, the center pin with the bag is fixed relatively, the sleeve pipe rotationally overlaps to be located outside the center pin, the support with sheathed tube outer wall connection, and can follow the sleeve pipe rotates, the blade can drive under the impact effect of air current the sleeve pipe rotates.
Optionally, the driving piece further includes a guide vane spirally disposed along an axial direction of the central shaft, the guide vane is disposed at an opening end of the sleeve facing the bag body, and a spiral direction of the guide vane is the same as a spiral direction of the blade.
Optionally, when the number of the driving parts is at least two, the guide plates are of a sectional structure, and one sleeve is arranged between two adjacent guide plates.
Optionally, the top end of the central shaft is fixed with the cover plate, and/or the bottom end of the central shaft is relatively fixed with the bottom end of the bag body through a connecting rod.
Optionally, the number of the cleaning brushes is at least two, and the cleaning brushes are uniformly spaced along the periphery of the central shaft.
The invention also provides a bag type dust collector which comprises a shell and the metal filter bag, wherein a pattern plate is arranged in the shell, the space in the shell is divided into an upper cavity and a lower cavity which are arranged up and down, the top end of the upper cavity is provided with an air outlet, the bottom end of the lower cavity is provided with an ash bucket, the side wall of the lower cavity is provided with an air inlet, the pattern plate is provided with a pattern plate hole, the metal filter bag is positioned in the upper cavity, the opening end of the metal filter bag is downwards arranged and fixed with the pattern plate, and the aperture of the opening end is the same as that of the pattern plate hole and is coaxially arranged with the pattern plate hole.
The technical effects of the bag type dust collector with the metal filter bag are similar to those of the metal filter bag, and the description is omitted herein for saving the space.
Drawings
FIG. 1 is a schematic view of the internal structure of a bag filter according to an embodiment of the present application;
FIG. 2 is a schematic view of the internal structure of the metal filter bag of FIG. 1;
FIG. 3 is a cross-sectional view of A-A of FIG. 2;
FIG. 4 is a schematic view of the inner barrel of FIG. 2 in an expanded configuration.
In fig. 1 to 4, reference numerals are explained as follows:
100-metal filter bags, 200-shells, 210-upper chambers, 220-air outlets, 230-lower chambers, 240-ash hoppers, 241-ash discharge ports, 250-air inlets, 260-pattern plate holes and 261-pattern plate holes;
1-a bag body, 11-an open end;
2-a cleaning brush;
31-bracket, 32-driving piece, 321-blade, 322-sleeve, 323-deflector;
4-center axis;
5-cover plate;
6-an inner cylinder, 61 through holes;
7-annular support.
Detailed Description
In order to make the technical solution of the present application better understood by those skilled in the art, the present application will be further described in detail with reference to the accompanying drawings and specific embodiments.
The embodiment of the application provides a metal filter bag and a bag-type dust collector, wherein, as shown in fig. 1, the bag-type dust collector comprises a metal filter bag 100 and a shell 200, a flower plate 260 is arranged in the shell 200, the flower plate 260 can divide the space in the shell 200 into an upper chamber 210 and a lower chamber 230, the upper chamber 210 is positioned above the lower chamber 230, the top end of the upper chamber 210 is provided with an air outlet 220, the side wall of the lower chamber 230 is provided with an air inlet 250, the bottom end of the lower chamber 230 is provided with an ash hopper 240, the bottom end of the ash hopper 240 is provided with an ash outlet 241, and the metal filter bag 100 is positioned in the upper chamber 210.
The pattern plate 260 is provided with a pattern plate hole 261, the metal filter bag 100 is in a reverse buckling state, specifically, the opening end 11 of the metal filter bag 100 is downward and fixed with the pattern plate 260, the aperture of the opening end 11 is the same as that of the pattern plate hole 261 and is coaxially arranged with the pattern plate hole 261, that is, the pattern plate hole 261 is communicated with the upper chamber 210 and the lower chamber 230, the metal filter bag 100 is positioned in the upper chamber 210 and is communicated with the pattern plate hole 261, dust-containing gas entering the lower chamber 230 from the gas inlet 250 passes through the pattern plate hole 261 and is filtered by the metal filter bag 100, and enters a clean area of the upper chamber 210 (that is, the area of the upper chamber 210 outside the metal filter bag 100) and finally is discharged from the gas outlet 220.
The metal filter bag 100 can filter the dust-containing gas in the lower chamber 230, and after the gas is filtered, dust is accumulated on the inner surface of the metal filter bag 100, so that the dust removing effect of the metal filter bag 100 is ensured, and the bag type dust remover can stably and efficiently operate, and the inner surface of the metal filter bag 100 needs to be cleaned, so that the dust on the inner surface of the metal filter bag 100 falls down and falls into the dust hopper 240 through the pattern plate hole 261, and finally is discharged through the dust discharge port 241 at the bottom of the dust hopper 240.
In the prior art, the cleaning of the filter bag is mainly aimed at the cleaning of a conventional cloth fiber filter bag, and specifically comprises two online ash cleaning modes of pulse valve blowing compressed air or mechanical vibration, but because the structural strength of the metal filter bag 100 is high, the filter bag is easy to damage due to mechanical vibration, the pulse valve blowing compressed air is required to generate instantaneous drum-shrinkage deformation of the filter bag, and the metal filter bag 100 is easy to damage.
Specifically, as shown in fig. 2, the metal filter bag 100 includes a bag body 1, and a cleaning brush 2 and a driving part disposed in the bag body 1, where the bag body 1 is made of metal, and specifically may be made of metal fibers (such as carbon steel, stainless steel, and other metal materials), and is a cylindrical structure made by sintering and layering, and the strength is relatively large, and is hard and firm, the top end of the bag body 1 is provided with a cover plate 5, the bottom end of the bag body 1 forms an open end 11 thereof, the length of the cleaning brush 2 is adapted to the length of the bag body 1, and the cleaning brush 2 is attached to the inner surface of the bag body 1.
The bag body 1 is internally provided with a central shaft 4 along the axial direction thereof, the driving part comprises a driving piece 32 and a bracket 31, wherein one end of the bracket 31 can rotate around the central shaft 4, the other end of the bracket 31 is connected with the cleaning brush 2, that is, the bracket 31 can drive the cleaning brush 2 to rotate around the central shaft 4, and specifically, the driving piece 32 is used for driving the bracket 31 to rotate around the central shaft 4, and the cleaning brush 2 can be attached to the inner surface of the bag body 1 in the rotating process, so that the driving piece 32 can drive the cleaning brush 2 to clean the inner wall of the bag body 1 in the rotating process of the driving bracket 31.
That is, a driving part is disposed in the metal filter bag 100, the driving part 32 drives the bracket 31 to rotate around the central shaft 4 and drives the cleaning brush 2 to rotate on the inner surface of the bag body 1, in this process, the cleaning brush 2 can rub against the inner surface of the bag body 1 and clean dust deposited on the inner surface of the bag body 1, so that the dust is separated from the inner surface of the bag body 1, the blocking of the bag body 1 is avoided, the resistance of the metal filter bag 100 is reduced, and the long-time stable operation of the bag type dust collector is ensured.
Because the bag body 1 is made of metal, the strength is higher, and therefore, the cleaning brush 2 can be contacted and rubbed with the inner surface of the bag body 1, and the bag body 1 can be cleaned without being damaged.
As shown in fig. 2, the metal filter bag 100 further includes an inner cylinder 6 disposed in the bag body 1, the inner cylinder 6 is coaxially disposed with the central shaft 4, an annular supporting member 7 is further connected between an outer wall of the inner cylinder 6 and an inner wall of the bag body 1, the annular supporting member 7 can provide support for the bag body 1, wrinkles in the bag body 1 are avoided, and deformation of the bag body 1 due to impact of air flow is avoided, so that the service life of the metal filter bag 100 is prolonged. Specifically, the number of the annular supports 7 in the height direction is not limited, and may be one or at least two and may be arranged at intervals.
Through holes 61 (as shown in fig. 4) are uniformly formed in the side wall of the inner tube 6, and specifically, the through holes 61 are uniformly arranged, so that the air flow direction can be uniform. Specifically, the opening ratio of the inner cylinder 6 is approximately 40% -50%, so that ventilation is facilitated while the structural strength and the pre-dedusting effect of the inner cylinder 6 are ensured. The dust-containing gas entering the metal filter bag 100 from the opening end 11 passes through the inner cylinder 6, part of dust with larger particles directly collides with the inner wall of the inner cylinder 6 and falls down along the inner wall of the inner cylinder 6, so that the pre-dedusting effect is achieved, the load of the bag body 1 is reduced, and then the dust-containing gas passes through the through hole 61 and is finally intercepted by the bag body 1.
The inner cylinder 6 is of a segmented structure, and the support 31 can pass through the gap between the inner cylinders 6 at two adjacent ends and rotate around the central shaft 4 in the gap, so that the inner cylinder 6 cannot influence the rotation of the support 31. Specifically, the fixing manner of the inner tube 6 of each section is not limited, for example, the inner tube 6 may be fixed to the cover plate 5 and the flower plate 260, or the inner tube 6 may be fixed to the bag body 1 only through the annular supporting member 7.
In this embodiment, the inner cylinder 6 is a metal cylinder, specifically, a metal thin steel plate (in an expanded state shown in fig. 4) is rolled into a cylinder body, the wall thickness is about 1 mm-2 mm, the cleaning brush 2 is a metal brush, that is, the inner cylinder 6 and the cleaning brush 2 are both made of metal materials, and since the bag body 1 is made of metal materials, the cleaning bag can be suitable for severe working conditions such as high temperature, and when the inner cylinder 6 and the cleaning brush 2 are both made of metal materials, the cleaning bag can be equally suitable for severe environments such as high temperature, and the overall service life of the metal filter bag 100 is prolonged.
As shown in fig. 2 and 3, in the present embodiment, the driving member 32 includes a sleeve 322 and at least three blades 321 disposed along the outer periphery of the sleeve 322, and the blades 321 are uniformly disposed along the outer periphery of the sleeve 322, and the sleeve 322 is sleeved outside the central shaft 4 and can rotate around the central shaft 4. Specifically, a gap is left between the inner wall of the sleeve 322 and the outer wall of the central shaft 4, so that the sleeve 322 can flexibly rotate relative to the central shaft 4, and at this time, the central shaft 4 is relatively fixed with the bag body 1, the bracket 31 is connected with the outer wall of the sleeve 322 and can rotate along with the sleeve 322, and the blades 321 can drive the sleeve 322 to rotate around the central shaft 4 under the action of air flow.
That is, when the dust-containing gas flows into the metal filter bag 100 from bottom to top, the air flow impacts the blades 321, so that the blades 321 can be driven to drive the sleeve 322 to rotate, and at this time, the sleeve 322 can drive the bracket 31 and the cleaning brush 2 to rotate together, and the cleaning of the inner surface of the bag body 1 is realized. The blades 321 have a certain angle, when the air passes through, the blades 321 can be blown by the air flow like a windmill to drive the sleeve 322 to rotate, specifically, how the angle of the blades 321 is set to enable the blades to drive the sleeve 322 to rotate under the impact of the air flow, which is well known in the art for those skilled in the art, and is not described herein for saving space.
Of course, in the present embodiment, the specific structure of the driving member 32 is not limited, for example, the driving member 32 may be a motor provided on the cover 5, the central shaft 4 is driven to rotate by the motor, the bracket 31 is connected with the central shaft 4, and when the driving member 32 is configured to include the sleeve 322 and the blade 321, no external power is required, so that the energy consumption is reduced, and the maintenance amount of overhaul is reduced. In addition, in the process of filtering the dust-containing gas, the real-time ash removal operation can be realized, that is, the metal filter bag 100 can realize automatic real-time cleaning in the process of dust removal, thereby ensuring that the bag type dust collector can stably operate for a long time.
The central shaft 4 is fixed relative to the bag body 1, and the fixing mode of the central shaft 4 is not limited, for example, the top end of the central shaft 4 and the cover plate 5 can be fixed, and the bottom end is free. Or the bottom end of the central shaft 4 is relatively fixed with the bag body 1 through a connecting rod, for example, the connecting rod is fixed with the flower plate 260, the inner cylinder 6 or the bag body 1, and the top end of the central shaft 4 is free. Or in order to ensure the stability of the central shaft 4, the top end and the bottom end of the central shaft 4 are respectively fixed with the bag body 1.
Further, as shown in fig. 2, the driving member 32 further includes a guide vane 323 disposed on the outer wall of the central shaft 4, the guide vane 323 is spirally disposed along the axial direction of the central shaft 4, and the guide vane 323 is disposed on the opening end 11 of the sleeve 322 facing the bag body 1, and the spiral direction of the guide vane 323 is the same as the spiral direction of the vane 321. The guide vane 323 can provide a reverse flow effect to the air flow, so that the air flow can flow to the blades 321 along the guide vane 323 and act on the blades 321 to enable the blades 321 to drive the sleeve 322 to rotate, and the rotating speed of the sleeve 322 is improved.
In this embodiment, only one set of driving members 32 may be provided, and the sleeve 322 is driven to rotate by the set of blades 321, so that the cleaning brush 2 is driven to rotate by the bracket 31, so as to clean the inner surface of the bag body 1. Alternatively, as shown in fig. 2, the driving members 32 are provided with two groups, the two groups of driving members 32 are arranged at intervals along the height direction, the blades 321 of the two groups of driving members 32 are identical, so that the cleaning brush 2 is synchronously driven to rotate, the guide plates 323 are arranged between the sleeves 322 of the two groups of driving members 32 and between the sleeve 322 positioned below and the bottom end of the central shaft 4, that is, the guide plates 323 are in a sectional structure, and one sleeve 322 is arranged between two adjacent sections of guide plates 323.
The air deflector 323 can effectively guide gas into the blades 321, the air flow with dust moves upwards from the lower spiral, through the principle of rotational flow, the blades 321 drive the sleeve 322 to rotate at a high speed by intensively flushing the surfaces of the blades 321 with angles, under the action of impact force, part of the air flow is dispersed to the periphery, the dust with large particles is impacted on the inner wall of the inner cylinder 6 to fall off rapidly, the fine dust of the particles passes through the through holes 61 on the inner cylinder 6 and is intercepted on the inner surface of the bag body 1, and the other part of the air flow passes through the blades 321 to continuously enter and act on the rotation of the next group of blades 321, so that the air flow is uniformly distributed on the inner surface of the whole bag body 1.
In this embodiment, the number of the cleaning brushes 2 is at least two, and the cleaning brushes are symmetrically arranged in the bag body 1 along the radial direction, so that the force condition of the driving member 32 can be balanced better.
The foregoing is merely a preferred embodiment of the present application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present application, which are intended to be comprehended within the scope of the present application.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210074172.8A CN114225575B (en) | 2022-01-21 | 2022-01-21 | Metal filter bag and bag type dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210074172.8A CN114225575B (en) | 2022-01-21 | 2022-01-21 | Metal filter bag and bag type dust collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114225575A CN114225575A (en) | 2022-03-25 |
| CN114225575B true CN114225575B (en) | 2025-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210074172.8A Active CN114225575B (en) | 2022-01-21 | 2022-01-21 | Metal filter bag and bag type dust collector |
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| Country | Link |
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| CN (1) | CN114225575B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114768405B (en) * | 2022-04-01 | 2024-06-21 | 抚顺天宇滤材有限公司 | Special bag cage with fold-type filter bag and installation method |
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