CN114272711A - Dust removal box and dust removal system - Google Patents
Dust removal box and dust removal system Download PDFInfo
- Publication number
- CN114272711A CN114272711A CN202111441363.5A CN202111441363A CN114272711A CN 114272711 A CN114272711 A CN 114272711A CN 202111441363 A CN202111441363 A CN 202111441363A CN 114272711 A CN114272711 A CN 114272711A
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- dust
- dust removal
- chamber
- box body
- primary settling
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- 239000000428 dust Substances 0.000 title claims abstract description 166
- 239000000463 material Substances 0.000 claims abstract description 15
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 13
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 13
- 241001330002 Bambuseae Species 0.000 claims abstract description 13
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 13
- 239000011425 bamboo Substances 0.000 claims abstract description 13
- 238000007664 blowing Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000000605 extraction Methods 0.000 claims 6
- 238000010408 sweeping Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 239000010865 sewage Substances 0.000 abstract description 7
- 230000005484 gravity Effects 0.000 abstract description 6
- 238000001914 filtration Methods 0.000 abstract description 5
- 238000004062 sedimentation Methods 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a dust removal box body and a dust removal system, wherein the dust removal box body comprises a primary settling chamber and a secondary dust removal chamber, the primary settling chamber and the secondary dust removal chamber are separated by a vertical baffle, and a screen is arranged on the vertical baffle; the second grade dust removal chamber includes horizontal card, horizontal card is divided into two cavities with the second grade dust removal chamber, a section of thick bamboo is strained to the cavity of horizontal card below is installed, the pulse jetting pipeline is installed to the cavity of horizontal card top. The dust removal box body adopts a two-stage dust removal mode combining gravity settling and filtering dust removal to remove dust from dust-containing gas generated in the operation process of the ballast bed sewage treatment vehicle; meanwhile, the baffle, the detachable filter screen and the grating plate are arranged in the dust removal box body, so that the dust removal efficiency can be improved, and the emission concentration of dust-containing gas can be reduced; in addition, the dust removal system adopts the main sedimentation pipe to carry out secondary dust removal on the raised dust generated in the material conveying process, so that zero raised dust in the whole operation process is realized, and the secondary pollution caused by the raised dust is avoided.
Description
Technical Field
The invention relates to a dust removal box body and a dust removal system, and belongs to the technical field of dust removal equipment.
Background
With the rapid development of railways, the treatment of the dirt on the surface of the railway ballast bed is an urgent problem to be solved, and the source of the dirt of the ballast bed mainly comprises the following aspects: construction waste generated before the railway trunk line is communicated; soil and dust generated by natural reasons such as sand and dust after the railway is communicated; when the coal transportation vehicle runs, materials in the vehicle are rolled out of the carriage under the action of air flow and are scattered on the surface of the railway track bed; scrap iron and the like generated during regular grinding and maintenance of the steel rail. When a train runs, dirt such as dust accumulated on the surface of a track can be rolled up to generate raise dust, and meanwhile, the sight of train drivers can be influenced, and the running safety is influenced; in addition, a large amount of coal dust is accumulated to bury elements such as a track and a transponder on the track, and if the elements are not processed in time, the safety of the railway vehicle, the line signal display, the trackside equipment, the engineering maintenance and the like are seriously influenced.
At present, the rail cleaning is generally carried out in a manual cleaning mode, and the manual cleaning has the defects of low efficiency, long time consumption, high labor intensity, incomplete cleaning and great potential safety hazard. In order to ensure the driving safety and improve the cleaning efficiency, the ballast bed sewage treatment vehicle can automatically clean the track sewage and discharge the sewage to a specified place, and replaces manual operation. The dust removing equipment of the conventional ballast bed sewage suction treatment vehicle cannot simultaneously take the dust removing effect and the equipment volume into consideration, and in order to improve the dust removing effect, the dust removing equipment with different dust removing modes is generally used in series, so that the whole ballast bed sewage suction treatment vehicle is large in volume and inflexible to operate; due to the space limitation, the track bed sewage suction treatment vehicle with small volume and flexible operation only has a primary dedusting function, so that the dedusting effect is reduced; in addition, in the prior art, in the process of treating the ballast bed dirt, the raised dust generated when the dust removing system conveys dust to the conveying belt is not treated, so that secondary environmental pollution is easily caused, and the driving safety is influenced.
Disclosure of Invention
The invention provides a dust removal box body and a dust removal system aiming at the problems that the volume and the dust removal effect of dust removal equipment in the prior art cannot be simultaneously considered, and secondary pollution is caused by raised dust generated by dust discharge of the dust removal equipment; meanwhile, the baffle, the detachable filter screen and the grating plate are arranged in the dust removal box body, so that the dust removal efficiency can be improved, and the emission concentration of dust-containing gas can be reduced; in addition, the dust removal system adopts the main sedimentation pipe to carry out secondary dust removal on the raised dust generated in the material conveying process, so that zero raised dust in the whole operation process is realized, and the secondary pollution caused by the raised dust is avoided.
In order to solve the technical problem, the invention provides a dust removal box body which comprises a primary settling chamber and a secondary dust removal chamber, wherein the primary settling chamber and the secondary dust removal chamber are separated by a vertical baffle, and a screen is arranged on the vertical baffle.
One side of the primary settling chamber is provided with a second air inlet pipeline, the bottom of the primary settling chamber is provided with a first air inlet pipeline, the inner side of the top of the primary settling chamber and the position, opposite to the tail end of the first air inlet pipeline, of the first air inlet pipeline are provided with baffles, and the bottom of the primary settling chamber is provided with a first ash discharge port.
The second grade clean room includes horizontal card, horizontal card is cut apart into two cavities with the second grade clean room, the cavity of horizontal card below is installed and is strained a section of thick bamboo, the pulse injection pipeline is installed to the cavity of horizontal card top, the pulse injection pipeline is to straining a section of thick bamboo jetting, second grade clean room one side is equipped with the gas vent, second grade clean room bottom is equipped with the second and arranges grey mouth.
Further, the front end of second grade clean room is provided with the grid board parallel with vertical baffle, the grid board includes vertical board and the bent plate of equipartition on vertical board, the bent plate includes the plane of being connected with vertical board and the inclined plane that becomes 45 contained angles with vertical direction.
Further, the filter cylinder is of an inverted cone-shaped structure with a cone angle smaller than 5 degrees and a large upper part and a small lower part.
Furthermore, a handheld suction pipe is arranged at the bottom of the primary settling chamber.
Furthermore, a pulse valve for controlling a pulse blowing pipeline is arranged in the cavity above the horizontal pattern plate.
Further, the screen is a detachable screen.
Further, the baffle is an arched baffle.
Furthermore, the first ash discharge port and the second ash discharge port are respectively provided with two.
The invention also provides a dust removal system which comprises the dust removal box body, wherein a second air inlet pipeline of the dust removal box body is connected with the dust removal main pipe, an air outlet of the dust removal box body is connected with the power fan, and a first ash discharge port and a second ash discharge port at the bottom of the dust removal box body are respectively connected with the unloader; the outlet of the unloader is connected with the ash inlet of the material conveying belt; the air suction opening of the dust fall main pipe is connected with the dust outlet of the material conveying belt.
Furthermore, the dust fall main pipe can also be connected with a cleaning device for generating dust.
Compared with the prior art, the invention has the following advantages:
(1) the whole system adopts a two-stage dust removal mode combining gravity settling type pre-dust removal and filter drum dust removal, so that the dust concentration of the dust-containing gas is greatly reduced, the screen at the joint of the first-stage settling chamber and the second-stage dust removal chamber can perform secondary filtration on the dust-containing gas settled in the first-stage settling chamber, the dust concentration of the dust-containing gas entering the second-stage dust removal chamber is reduced, and the dust removal efficiency is greatly improved.
(2) Adopt the dust fall to be responsible for the mode with material conveyer belt and dust removal box intercommunication, solved the problem that dust removal box dust discharging process produced the secondary raise dust, avoided environmental pollution and driving safety that the secondary raise dust produced.
(3) A section of thick bamboo adopts big-end-up's back taper structure, compares with traditional cylindrical section of thick bamboo, has increased the filter area who strains a section of thick bamboo on the one hand, and on the other hand because the back taper structure is unfavorable for the dust and is straining a section of thick bamboo surface and adhere to, is strained a section of thick bamboo and stops that the dust on a section of thick bamboo surface can sink to bottom half at the action of gravity, can prolong the filter time who strains a section of thick bamboo, has also reduced the deashing degree of difficulty of straining a section of thick bamboo simultaneously.
(4) The dust removal box body is internally provided with the baffle, can dismantle filter screen and grid plate, can improve dust collection efficiency under the prerequisite that does not increase equipment volume, reduces dirty gas emission concentration.
Drawings
Fig. 1 is a schematic structural diagram of a dust removal system according to the present invention.
Fig. 2 is a schematic structural diagram of a dust removal box body provided by the invention.
Fig. 3 is a schematic structural diagram of a primary settling chamber of the dust removal box body provided by the invention.
In the figure, 1-main dust settling pipe, 2-dust removing box, 3-power fan, 4-material conveyer belt, 5-unloader, 2.1-primary settling chamber, 2.1-1-first air inlet pipeline, 2.1-2-second air inlet pipeline, 2.1-3-arched baffle, 2.1-4-vertical baffle, 2.1-5-hand suction pipe, 2.1-6-first ash discharge port, 2.1-7-screen, 2.2-secondary dust removing chamber, 2.2-1-filter cartridge, 2.2-2-grid plate, 2.2-3-second ash discharge port, 2.2-4-horizontal flower plate, 2.2-5-exhaust port, 2.2-6-pulse blowing pipeline and 2.2-7-pulse valve.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example 1
As shown in fig. 2 and 3, the dust removing box provided by the invention comprises a primary settling chamber 2.1 and a secondary dust removing chamber 2.2, wherein the primary settling chamber 2.1 and the secondary dust removing chamber 2.2 are separated by vertical baffles 2.1-4 with detachable screens 2.1-7; the vertical baffle 2.1-4 can prevent the dust deposited in the primary settling chamber 2.1 from falling into the secondary dust chamber 2.2, and the screen 2.1-7 can carry out secondary filtration on the dust-containing gas settled in the primary settling chamber 2.1, thereby reducing the dust concentration of the dust-containing gas entering the secondary dust chamber 2.2 and improving the dust removal efficiency.
The left and right bottoms of the primary settling chamber 2.1 are respectively provided with a first air inlet pipeline 2.1-1 and a handheld suction pipe 2.1-5, the corresponding position of the tail end of the first air inlet pipeline 2.1-1 is provided with an arched baffle 2.1-3, the flow velocity and the flow direction of dust-containing gas sucked from the first air inlet pipeline 2.1-1 are changed under the action of the arched baffle 2.1-3, so that larger particles of dust are settled to the bottom of the primary settling chamber 2.1 under the action of inertia and gravity and are discharged from a first dust outlet 2.1-6; the hand-held suction pipes 2.1-5 can absorb small amounts of dust scattered at a large distance from the road surface and unabsorbed clean residual dust.
The secondary dust chamber 2.2 comprises a filter cylinder 2.2-1, a horizontal flower plate 2.2-4 for installing the filter cylinder 2.2-1 and two second ash discharge openings 2.2-3 at the bottom of the secondary dust chamber 2.2; the horizontal floral plate 2.2-4 divides the secondary dust chamber 2.2 into two chambers, the chamber above the horizontal floral plate 2.2-4 is provided with a pulse blowing pipeline 2.2-6, a pulse valve 2.2-7 and an exhaust port 2.2-5 of the secondary dust chamber 2.2, the front end of the secondary dust chamber 2.2 is provided with a grating plate 2.2-2 which is parallel to the vertical baffle 2.1-4, the grating plates 2.2-2 are composed of vertical plates and bent plates uniformly distributed on the vertical plates, each bent plate comprises a plane connected with the vertical plate and an inclined plane forming an included angle of 45 degrees with the vertical direction, and the grating plates 2.2-2 can guide the dust-containing gas filtered by the screen 2.1-7 from the primary settling chamber 2.1, so that the dust-containing gas is uniformly contacted with the filter cartridges 2.2-1 arranged on the horizontal flower plates 2.2-4, the filtering efficiency is improved, and secondary dust raising caused by the dust-containing gas entering the secondary dust removal chamber 2.2 is reduced; the filter cylinder 2.2-1 in the secondary dust removal chamber 2.2 is of an inverted cone structure with a cone angle smaller than 5 degrees and large top and small bottom, the inverted cone structure is not beneficial to dust to be attached to the surface of the filter cylinder, and the dust is accumulated to a certain thickness and can sink to the bottom of the box body under the action of self weight, so that the filtering time of the filter cylinder can be prolonged, and the dust removal difficulty of the filter cylinder can be reduced.
Example 2
As shown in FIG. 1, the dust removing system provided by the present invention comprises a dust removing box body 2, a main dust removing pipe 1 connected to a second air inlet pipe 2.1-2 of the dust removing box body 2, a power fan 3 communicated with an air outlet 2.2-5 of the dust removing box body 2, and a discharger 5 respectively communicated with a first ash discharge port 2.1-6 and a second ash discharge port 2.2-3 at the bottom of the dust removing box body 2; the outlet of the unloader 5 is connected with a first inlet and a second inlet on the material conveying belt 4; the air suction opening of the dust fall main pipe 1 is connected with the dust discharge opening of the material conveying belt 4.
In the working process, dust-containing gas enters a primary settling chamber 2.1 through a first gas inlet pipeline 2.1-1 of a dust removal box body 2, then collides with an arched baffle 2.1-3 at the outlet end of the first gas inlet pipeline 2.1-1, the gas flow speed and direction are changed, so that larger particles of dust are settled to the bottom of the primary settling chamber 2.1 under the action of gravity and discharged onto a material conveying belt 4 from a first dust discharge port 2.1-6 through a discharger 5, dust which cannot settle under the action of gravity flows through a screen 2.1-7 on a vertical baffle 2.1-4 to be secondarily filtered and then enters a chamber above a horizontal flower plate 2.2-4 of a secondary chamber 2.2.2-2 through a gap between the grid plates 2.2-2, dust particles in the dust-containing gas are blocked outside a filter cylinder 2.2-1, and the gas filtered by the filter cylinder 2.2-1 enters a chamber above the horizontal flower plate 2.2-4 through a pore of the filter cylinder 2.2-1, is exhausted from an exhaust port 2.2-5 of the secondary dust chamber 2.2 through a power fan 3. The dust filtered by the filter cartridge 2.2-1 is separated from the filter cartridge 2.2-1 and then settled to the bottom of the secondary dust chamber 2.2 under the back blowing action of the high-pressure gas sprayed by the pulse blowing pipeline 2.2-6, and then is discharged to the material conveyer belt 4 through the second ash discharge port 2.2-3 and the unloader 5. When carrying the dust to material conveyer belt 4 at one-level deposit room 2.1 and second grade clean room 2.2, can produce the secondary raise dust, the secondary raise dust of production is under power fan 3's suction effect, and dusty gas in the material conveyer belt 4 is responsible for 1 and is gone into to carry out the secondary dust removal in entering into dust removal box 2 from the dust exhaust mouth through the dust fall.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A dedusting box body is characterized by comprising a primary settling chamber (2.1) and a secondary dedusting chamber (2.2), wherein the primary settling chamber (2.1) and the secondary dedusting chamber (2.2) are separated by a vertical baffle (2.1-4), and a screen (2.1-7) is installed on the vertical baffle (2.1-4);
a second air inlet pipeline (2.1-2) is arranged on one side of the primary settling chamber (2.1), a first air inlet pipeline (2.1-1) is arranged at the bottom of the primary settling chamber (2.1), a baffle (2.1-3) is arranged at the position, opposite to the tail end of the first air inlet pipeline (2.1-1), of the inner side of the top of the primary settling chamber (2.1), and a first ash discharge port (2.1-6) is arranged at the bottom of the primary settling chamber (2.1);
second grade clean room (2.2) are including horizontal card (2.2-4), horizontal card (2.2-4) are cut apart into two cavities with second grade clean room (2.2), chamber below horizontal card (2.2-4) is installed and is strained a section of thick bamboo (2.2-1), pulse injection pipeline (2.2-6) are installed to the chamber of horizontal card (2.2-4) top, pulse injection pipeline (2.2-6) are to straining a section of thick bamboo (2.2-1) injection, second grade clean room (2.2) one side is equipped with gas vent (2.2-5), second grade clean room (2.2) bottom is equipped with second row ash mouth (2.2-3).
2. The dust removal box body according to claim 1, wherein the front end of the secondary dust chamber (2.2) is provided with a grating plate (2.2-2) which is parallel to the vertical baffle plate (2.1-4), the grating plate (2.2-2) comprises a vertical plate and a bent plate which is uniformly distributed on the vertical plate, and the bent plate comprises a plane which is connected with the vertical plate and an inclined plane which forms an included angle of 45 degrees with the vertical direction.
3. A dust extraction box according to claim 1, characterized in that the filter cartridge (2.2-1) is of an inverted cone structure with a cone angle smaller than 5 ° and big top and small bottom.
4. A dust extraction tank according to claim 1, characterised in that the bottom of the primary settling chamber (2.1) is provided with a hand-held suction pipe (2.1-5).
5. A dust extraction box according to claim 1, characterized in that the chamber above the horizontal card (2.2-4) is fitted with a pulse valve (2.2-7) controlling the pulse blowing line (2.2-6).
6. A dust extraction tank according to claim 1, characterised in that the screen (2.1-7) is a detachable screen.
7. A dust extraction tank according to claim 1, characterised in that the baffles (2.1-3) are arched baffles.
8. The dust-removing box body according to claim 1, characterized in that there are two first ash discharge openings (2.1-6) and two second ash discharge openings (2.2-3).
9. A dust removal system, characterized by comprising the dust removal box body (2) of any one of claims 1 to 8, wherein the second air inlet pipeline (2.1-2) of the dust removal box body (2) is connected with the dust removal main pipe (1), the air outlet (2.2-5) of the dust removal box body (2) is connected with the power fan (3), and the first ash outlet (2.1-6) and the second ash outlet (2.2-3) at the bottom of the dust removal box body (2) are respectively connected with the unloader (5); the outlet of the unloader (5) is connected with the ash inlet of the material conveying belt (4); the air suction opening of the dust fall main pipe (1) is connected with the dust outlet of the material conveying belt (4).
10. A dust extraction system according to claim 9, characterized in that the main dust fall pipe (1) is further connected to a sweeping device that generates dust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111441363.5A CN114272711A (en) | 2021-11-30 | 2021-11-30 | Dust removal box and dust removal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111441363.5A CN114272711A (en) | 2021-11-30 | 2021-11-30 | Dust removal box and dust removal system |
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| Publication Number | Publication Date |
|---|---|
| CN114272711A true CN114272711A (en) | 2022-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111441363.5A Pending CN114272711A (en) | 2021-11-30 | 2021-11-30 | Dust removal box and dust removal system |
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| Country | Link |
|---|---|
| CN (1) | CN114272711A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1314206A (en) * | 1969-08-12 | 1973-04-18 | Wheelabrator Corp | Dust collector |
| CN201454290U (en) * | 2009-06-26 | 2010-05-12 | 邢台钢铁有限责任公司 | Dust-proof dust discharge device for bag-type dust remover |
| CN202429676U (en) * | 2011-12-27 | 2012-09-12 | 宝山钢铁股份有限公司 | Self-cleaning scraper conveyor |
| CN105332357A (en) * | 2015-10-27 | 2016-02-17 | 中国铁建高新装备股份有限公司 | Railway tunnel track bed pulverized coal collecting device |
| CN106731380A (en) * | 2016-12-14 | 2017-05-31 | 浙江美通筑路机械股份有限公司 | A kind of vehicle-mounted inertial dust collection and pulse jet compound action formula deduster |
| CN207260051U (en) * | 2017-09-29 | 2018-04-20 | 新乡学院 | A kind of disposal box of suction sweeping type sanitation cart |
| CN210286060U (en) * | 2019-06-12 | 2020-04-10 | 淮沪电力有限公司田集第二发电厂 | Dry sediment storehouse negative pressure dust extraction device |
| CN210964441U (en) * | 2019-08-05 | 2020-07-10 | 贵州万宜亿保科技有限责任公司 | Offline chambered pulse dust collector with high dust removal efficiency |
| CN113403116A (en) * | 2021-07-30 | 2021-09-17 | 中冶赛迪技术研究中心有限公司 | Composite gas dry purification device |
| CN214486252U (en) * | 2021-02-03 | 2021-10-26 | 西安万基食品饮料有限公司 | Pulse type dust removal purification device |
-
2021
- 2021-11-30 CN CN202111441363.5A patent/CN114272711A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1314206A (en) * | 1969-08-12 | 1973-04-18 | Wheelabrator Corp | Dust collector |
| CN201454290U (en) * | 2009-06-26 | 2010-05-12 | 邢台钢铁有限责任公司 | Dust-proof dust discharge device for bag-type dust remover |
| CN202429676U (en) * | 2011-12-27 | 2012-09-12 | 宝山钢铁股份有限公司 | Self-cleaning scraper conveyor |
| CN105332357A (en) * | 2015-10-27 | 2016-02-17 | 中国铁建高新装备股份有限公司 | Railway tunnel track bed pulverized coal collecting device |
| CN106731380A (en) * | 2016-12-14 | 2017-05-31 | 浙江美通筑路机械股份有限公司 | A kind of vehicle-mounted inertial dust collection and pulse jet compound action formula deduster |
| CN207260051U (en) * | 2017-09-29 | 2018-04-20 | 新乡学院 | A kind of disposal box of suction sweeping type sanitation cart |
| CN210286060U (en) * | 2019-06-12 | 2020-04-10 | 淮沪电力有限公司田集第二发电厂 | Dry sediment storehouse negative pressure dust extraction device |
| CN210964441U (en) * | 2019-08-05 | 2020-07-10 | 贵州万宜亿保科技有限责任公司 | Offline chambered pulse dust collector with high dust removal efficiency |
| CN214486252U (en) * | 2021-02-03 | 2021-10-26 | 西安万基食品饮料有限公司 | Pulse type dust removal purification device |
| CN113403116A (en) * | 2021-07-30 | 2021-09-17 | 中冶赛迪技术研究中心有限公司 | Composite gas dry purification device |
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Application publication date: 20220405 |