CN108005711B - Underground roadway spraying dust-settling device - Google Patents
Underground roadway spraying dust-settling device Download PDFInfo
- Publication number
- CN108005711B CN108005711B CN201711315460.3A CN201711315460A CN108005711B CN 108005711 B CN108005711 B CN 108005711B CN 201711315460 A CN201711315460 A CN 201711315460A CN 108005711 B CN108005711 B CN 108005711B
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- pipe
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- 238000005507 spraying Methods 0.000 title claims abstract description 24
- 239000000428 dust Substances 0.000 claims abstract description 82
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000000203 mixture Substances 0.000 claims abstract description 28
- 239000002245 particle Substances 0.000 claims abstract description 28
- 238000005086 pumping Methods 0.000 claims abstract description 8
- 239000007921 spray Substances 0.000 claims description 49
- 238000007664 blowing Methods 0.000 claims description 23
- 238000001914 filtration Methods 0.000 abstract description 12
- 230000029058 respiratory gaseous exchange Effects 0.000 abstract 2
- 239000003651 drinking water Substances 0.000 abstract 1
- 235000020188 drinking water Nutrition 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 15
- 239000003245 coal Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 239000011148 porous material Substances 0.000 description 5
- 239000003595 mist Substances 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000008202 granule composition Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
- E21F5/04—Spraying barriers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/20—Drawing-off or depositing dust
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Separation Of Particles Using Liquids (AREA)
Abstract
In order to improve the situation, the invention discloses an underground roadway spraying dust-settling device which can be used for pumping a mixture generated by water and dust particles after spraying dust-settling and filtering dust in the pumped mixture through multi-stage filtration. The main part incasement is arranged in to its characterized in that fixed plate, and with main part incasement portion separate for collect the chamber and the chamber of breathing in, the chamber of breathing in is located the top of collecting the chamber, fixed plate right-hand member tilt up, on the fixed plate was arranged respectively in to a plurality of filters, the aperture of a plurality of filters reduces from a left side right side gradually, main part case right side is opened there is the through-hole, and is linked together with the collection chamber, and main part case right side is arranged in to drinking-water pipe one end, and corresponding with the through-hole on main part case right side, main part case upside is opened there is the bar groove, and is close to main part case left side, and main part case upside is arranged.
Description
Technical Field
The invention discloses a spraying and dust-settling device for an underground tunnel, relates to a device for spraying and dust-settling for the tunnel, and belongs to the field of mining equipment. In particular to a tunnel spraying and dust settling device which can pump away a mixture generated by water and dust particles after spraying and dust settling and filter dust in the pumped mixture through multi-stage filtration.
Background
At present, in the field of coal mines, when mining operation is carried out, the dust content in the air of areas such as a roadway and a mining face is large, the dust is sucked into human bodies and greatly harms operating personnel, and due to potential safety hazards such as explosion and the like, coal mine dust is generally cleaned in a spray dust-settling mode, the existing common spray dust-settling equipment is used for spraying water mist to settle in the areas with much dust, the water mist is mixed with dust particles with large mass and large quality and is deposited, a fan is difficult to extract and settle the mixture falling on the ground for a long time, the ground surface of the dust-settling area is adhered, the operating environment is damaged, the operating personnel in the past and the equipment are easy to slip and pollute, when the mixture is extracted and discharged through a ventilation device, the mixture is adsorbed to the positions such as a pipeline and a blade, the cleaning is difficult, the pipeline is easy to block due to long-term extraction, and the existing spray dust, the dust concentration in a short time is high, the spraying dust-settling efficiency is poor, the existing dust-settling device adopting a dust-collecting mode does not consider the concentration problem in the dust in a coal mine, the dust is directly extracted, the effect is poorer, and the serious blockage problem can be met;
publication No. CN205135694U discloses an automatic dust-settling spraying device for coal mine transportation, which comprises a spraying device, a control device and a water pump, wherein the water pump is provided with a water inlet pipe and a water spraying pipe, the water pump is connected with the control device, and the water spraying pipe is connected with the spraying device; the sprinkler includes the swivel valve head, wide-mouth sprinkler head, multi-ported valve and rotatory nozzle group, and the spray pipe is connected with the swivel valve head, is equipped with the wide-mouth sprinkler head on the swivel valve head, and the swivel valve head is connected with the multi-ported valve, is equipped with rotatory nozzle group on the multi-ported valve, and when using the device to carry out the dust fall processing, the mixed liquid that falls to ground makes the operation environment variation, influences normal production, and the result of use is not good.
Disclosure of Invention
In order to improve the situation, the invention provides an underground roadway spraying and dust-settling device which can suck a mixture generated by water and dust particles after spraying and dust-settling and filter dust in the extracted mixture through multi-stage filtration. Can prevent to take away the water and the dust particle mixture that the dust fall produced, reduce the influence to the operational environment to can filter the dust step by step in the extraction process, and then reduce the emergence of the pipeline jam condition.
The invention relates to a spray dust-settling device for an underground roadway, which is realized by the following steps: the invention relates to a spray dust-settling device for a downhole tunnel, which consists of a main body device and a dust-settling device, wherein the main body device consists of a water pumping pipe, a fixed plate, a collecting cavity, filter plates, a main body box, an air suction cavity and a gas collection box, the fixed plate is arranged in the main body box and divides the interior of the main body box into the collecting cavity and the air suction cavity, the air suction cavity is positioned above the collecting cavity, the right end of the fixed plate is inclined upwards, the filter plates are respectively arranged on the fixed plate, the pore diameters of the filter plates are gradually reduced from left to right, the right side of the main body box is provided with a through hole and communicated with the collecting cavity, one end of the water pumping pipe is arranged on the right side of the main body box and corresponds to the through hole on the right side of the main body box, the upper side of the main body box is provided with a strip-shaped groove and is close, and the height is gradually increased from the left side to the right side of the gas collection box, an air inlet groove is formed in the upper side face of the gas collection box, the dust falling device is composed of a blowing cover, a spray pipe, an air pump, a filter screen, a separation plate, a fixed nozzle, a baffle and an atomizing nozzle, one end of the air pipe is detachably arranged on the upper side of the main box and communicated with an air suction cavity, the air pipe is of an L-shaped structure, the air pump is arranged on the air pipe, the air pipe is separated into an upper part and a lower part by the air pump, the upper part is communicated with an air outlet of the air pump, the lower part is communicated with an air inlet of the air pump, the air pipe is internally provided with the filter screen, the aperture of the filter screen is gradually reduced from bottom to top, the blowing cover is arranged on the other end of the air pipe and communicated with the air pipe, the atomizing nozzle is hinged on the other end of the air pipe, one end of the water spraying pipe is communicated with the atomizing nozzle, the fixed nozzle is arranged in the middle of the upper side of the main box, and is positioned in the air suction cavity, the fixed spray nozzle corresponds to the rightmost filter plate on the fixed plate, one end of the other water spray pipe is communicated with the fixed spray nozzle, the partition plate is arranged in the air suction cavity, one end of the baffle plate is connected with the upper side wall of the main body box, the baffle plate is positioned below the air pipe, the other end of the baffle plate extends downwards obliquely to be close to the right side of the main body box, one ends of the three baffle plates are respectively arranged in the air suction cavity, and are respectively positioned between two adjacent filter plates on the fixed plate, the other end of the leftmost baffle extends obliquely upwards into the gas collection box, and the gas collection box right side wall is connected, the one end and the fixed plate of middle baffle are connected, and the other end extends to being close to the main part case upside in the slant, the baffle other end slant of the rightmost side extends to and is connected with main part case upside wall.
The "upper side", "left side" and "right side" mentioned above and to be mentioned later are based on the "upper side", "left side" and "right side" in FIG. 1.
When the dust-settling spray device is used, when the dust-settling spray device is used for spraying and settling dust in an underground tunnel, the dust-settling spray device is firstly placed in a dust-settling area of the tunnel, then the atomizing spray head and the fixed spray head are respectively communicated with an external water pipe through a water spray pipe, water is sprayed out through the atomizing spray head in an atomizing mode to spray and settle dust in the dust-settling area, meanwhile, the air pump works, the air pressure in the air suction cavity is reduced, external air carrying a mixture of water and dust particles enters the air collection box through the air inlet groove on the upper side of the air collection box, the air is blocked by the three baffles, part of the air flows back and forth along S-shaped curves in the collection cavity and the air suction cavity along the three baffles, in the flowing process, the water and the dust particles in the air are filtered step by step through the plurality of filter screens on the fixed plate and then remain in the collection, the fixed spray head sprays water to perform dust fall on the gas, the mass of the gas is increased and falls on the fixed plate after the dust and the water in the gas are mixed, the gas is filtered by the filter screen on the fixed plate and then flows into the collection cavity, the dust-falling gas flows into the gas pipe along the partition plate, the gas flows upwards along the gas pipe, is filtered step by the filter screen in the gas pipe and finally flows into the air blowing cover, and flows out through a plurality of gas outlet holes on the air blowing cover, so that the gas in a dust falling area is blown downwards, and the gas carrying water and the dust particles are mixed and flow downwards into the gas collection box;
the right end of the fixed plate is inclined upwards, so that the mixture of water and dust particles falling on the fixed plate can not flow to the position of the filter plate along the fixed plate, and then flows into the collection cavity for collection after being filtered by the filter plate;
the pore diameters of the filter plates are gradually reduced from left to right, so that the gas can be filtered in multiple stages, and the filtering effect is better;
the upper side surface of the gas collection box is an arc-shaped surface, and the height of the gas collection box is gradually increased from the left side to the right side of the gas collection box, so that gas in a dust falling area can flow downwards along the upper side surface of the gas collection box under the action of the blowing cover and then flows into the gas collection box through the gas inlet groove;
the design that the pore diameter of the filter screen is gradually reduced from bottom to top can gradually filter the gas in the process that the gas flows upwards along the gas pipe, so that the filtering effect on the gas is improved, and blockage is prevented;
the air blowing cover is of a hollow structure, the cross section of the air blowing cover is in a sickle-shaped design, blown air can be prevented from being diffused all around, downward air blowing is carried out aiming at the position of the air collecting box, and the effect of extracting a mixture of water and dust particles in a dust fall area is improved;
the lower side of the air blowing cover is provided with a plurality of air outlet holes, and the aperture of each air outlet hole is gradually increased from the inlet to the outlet, so that the air in the air blowing cover can conveniently flow out, and the mixture of water and dust particles in the dust falling area can be blown downwards better;
the air pump is matched with the blowing cover, and the mixture of water and dust particles in the dust falling area is extracted, so that the mixture can be prevented from being deposited on the ground surface of the dust falling area, and the influence on the working environment and the equipment is reduced;
after the gas enters the gas collecting box, part of the gas flows back and forth in an S shape in the gas suction cavity and the collecting cavity along the three baffles, so that the extracted gas can be subjected to multistage filtration, the filtering effect on the mixture of water and dust particles in the gas is better, the pipeline is prevented from being blocked, and the using effect is better;
the dust-settling device has a better dust-settling effect on a coal mine excavation face with higher dust concentration, the higher the dust concentration is, the larger the spray is, the mass of water mist mixed with dust particles becomes large and the dust particles settle on a large scale, after the dust-settling by the spray, a mixture generated by water and the dust particles is pumped away, and in the process of pumping, the dust is filtered step by step, so that the condition of pipeline blockage can be reduced, the problem of poor dust-settling effect in a general dust-settling mode can be avoided, and the practicability is better;
the purposes of spraying and dust reduction on the roadway when the coal mine is used underground are achieved.
Has the beneficial effects.
The structure is simple, and the device is convenient and practical.
Secondly, can prevent to take away the water and the dust granule mixture that the dust fall produced, reduce the influence to the operational environment.
Thirdly, can filter the dust step by step in the extraction process, and then reduce the emergence of the pipeline jam condition.
Drawings
Fig. 1 is a schematic structural diagram of an underground roadway spraying dust-settling device.
In the attached drawings
Wherein the parts are: the air pump comprises a blowing cover (1), a water spray pipe (2), an air pipe (3), an air pump (4), a filter screen (5), a partition plate (6), a water pumping pipe (7), a fixing plate (8), a collecting cavity (9), a fixed spray nozzle (10), a filter plate (11), a main body box (12), an air suction cavity (13), a baffle plate (14), an air collecting box (15) and an atomizing spray nozzle (16).
The specific implementation mode is as follows:
the invention relates to a spray dust-settling device for an underground roadway, which is realized in such a way that when the spray dust-settling device is used for spraying dust-settling on the underground roadway, the spray dust-settling device is firstly placed in a dust-settling area of the roadway, then an atomizing spray head (16) and a fixed spray head (10) are respectively communicated with an external water pipe through a spray pipe (2), water is sprayed out in an atomizing mode through the atomizing spray head (16) to spray dust-settling on the dust-settling area, meanwhile, an air pump (4) works, the air pressure in an air suction cavity (13) is reduced, the mixture of external air carrying water and dust particles enters a gas collection box (15) through an air inlet groove at the upper side of the gas collection box (15), the air is blocked by three baffles (14), part of the air flows back and forth along S-shaped curves in a collection cavity (9) and the air suction cavity (13) along the three baffles (14), and in the flowing process, the water and the dust particles in the air are filtered, the other part of the gas flows along three baffles (14) in an S-shaped curve in the air suction cavity (13) and is not filtered by the filter plate (11), all the gas is converged at the corresponding position of the fixed spray nozzle (10), the fixed spray nozzle (10) sprays water to perform dust fall on the gas, the mass of the dust in the gas is increased and falls on the fixed plate (8) after the dust and the water in the gas are mixed, then the dust-reduced gas flows into a collecting cavity (9) after being filtered by a filter screen (5) on a fixed plate (8), the dust-reduced gas flows into an air pipe (3) along a partition plate (6), the gas flows upwards along the air pipe (3) and is filtered step by the filter screen (5) in the air pipe (3), finally flows into the blower cover (1) and flows out through a plurality of air outlet holes on the blower cover (1), further blowing the gas in the dust falling area downwards, so that the gas carries the mixture of water and dust particles to flow downwards into the gas collection box (15);
the right end of the fixed plate (8) is inclined upwards, so that the mixture of water and dust particles falling on the fixed plate (8) can not flow to the position of the filter plate (11) along the fixed plate (8), and then flows into the collecting cavity (9) for collection after being filtered by the filter plate (11);
the pore diameters of the plurality of filter plates (11) are gradually reduced from left to right, so that the gas can be filtered in multiple stages, and the filtering effect is better;
the upper side surface of the gas collection box (15) is an arc-shaped surface, and the height of the gas collection box (15) is gradually increased from the left side to the right side of the gas collection box (15), so that gas in a dust falling area can flow downwards along the upper side surface of the gas collection box (15) under the action of the air blowing cover (1) and then flows into the gas collection box (15) through the air inlet groove;
the design that the pore diameter of the filter screen (5) is gradually reduced from bottom to top can gradually filter the gas in the process that the gas flows upwards along the gas pipe (3), so that the filtering effect on the gas is improved, and blockage is prevented;
the air blowing cover (1) is of a hollow structure, the cross section of the air blowing cover is in a sickle-shaped design, blown air can be prevented from being diffused all around, downward air blowing is carried out on the position of the air collecting box (15), and the effect of extracting a mixture of water and dust particles in a dust fall area is improved;
the lower side of the air blowing cover (1) is provided with a plurality of air outlet holes, and the aperture of each air outlet hole is gradually increased from the inlet to the outlet, so that the air in the air blowing cover (1) can conveniently flow out, and the mixture of water and dust particles in a dust falling area is blown downwards better;
the air pump (4) is matched with the air blowing cover (1) to extract a mixture of water and dust particles in the dust fall area, so that the mixture can be prevented from being deposited on the ground surface of the dust fall area, and the influence on the working environment and the equipment is reduced;
after the gas enters the gas collecting box (15), part of the gas flows back and forth in an S shape in the gas suction cavity (13) and the collecting cavity (9) along the three baffles (14), so that the extracted gas can be subjected to multistage filtration, the filtering effect on the mixture of water and dust particles in the gas is better, the pipeline is prevented from being blocked, and the using effect is better;
the dust-settling device has a better dust-settling effect on a coal mine excavation face with higher dust concentration, the higher the dust concentration is, the larger the spray is, the mass of water mist mixed with dust particles becomes large and the dust particles settle on a large scale, after the dust-settling by the spray, a mixture generated by water and the dust particles is pumped away, and in the process of pumping, the dust is filtered step by step, so that the condition of pipeline blockage can be reduced, the problem of poor dust-settling effect in a general dust-settling mode can be avoided, and the practicability is better;
the purposes of spraying and dust reduction on the roadway when the coal mine is used underground are achieved.
Claims (5)
1. The utility model provides a underworkings spraying dust device which characterized by: the dust-settling device comprises a main body device and a dust-settling device, wherein the main body device comprises a water pumping pipe, a fixed plate, a collecting cavity, filter plates, a main body box, an air suction cavity and a gas collection box, the fixed plate is arranged in the main body box and divides the interior of the main body box into the collecting cavity and the air suction cavity, the air suction cavity is positioned above the collecting cavity, the filter plates are respectively arranged on the fixed plate, the right side of the main body box is provided with a through hole and communicated with the collecting cavity, one end of the water pumping pipe is arranged on the right side of the main body box and corresponds to the through hole on the right side of the main body box, the upper side of the main body box is provided with a strip-shaped groove and is close to the left side of the main body box, the gas collection box is arranged on the upper side of the main body box and is communicated with the air suction cavity through the strip-shaped groove on, one end of the air pipe is detachably arranged on the upper side of the main body box and communicated with the air suction cavity, the air pipe is of an L-shaped structure, the air pump is arranged on the air pipe, the air pipe is divided into an upper part and a lower part by the air pump, the upper part is communicated with an air outlet of the air pump, the lower part is communicated with an air inlet of the air pump, the air blowing cover is arranged on the other end of the air pipe and communicated with the air pipe, the atomizing spray head is hinged to the other end of the air pipe, one end of the water spray pipe is communicated with the atomizing spray head, the fixed spray head is arranged in the middle of the upper side of the main body box and positioned in the air suction cavity, the fixed spray head corresponds to the filter plate on the rightmost side of the fixed plate, one end of the other water spray pipe is communicated with the fixed spray head, the, and are respectively positioned between two adjacent filter plates on the fixed plate, the other end of the leftmost baffle extends obliquely upwards into the gas collection box and is connected with the right side wall of the gas collection box, one end of the baffle is connected with the fixed plate at the middle position, the other end extends obliquely upwards to be close to the upper side of the main body box, the other end of the rightmost baffle extends obliquely upwards to be connected with the upper side wall of the main body box, the apertures of the plurality of filter plates are gradually reduced from left to right, the right end of the fixed plate is inclined upwards, so that the mixture of water and dust particles falling on the fixed plate can not flow to the positions of the filter plates along the fixed plate and then flows into the collection cavity for collection after being filtered by the filter plates, a filter screen is arranged in the gas pipe, the apertures of the filter screen are gradually reduced from bottom to top, after suction gas enters the gas collection box, partial, the extracted gas can be filtered in multiple stages.
2. The underground roadway spray dust settling device of claim 1, wherein the upper side surface of the gas collection box is an arc-shaped surface, and the height of the gas collection box gradually increases from the left side to the right side of the gas collection box.
3. The underground roadway spray dust settling device of claim 1, wherein the air blowing cover is of a hollow structure and has a sickle-shaped cross section.
4. The underground roadway spray dust settling device of claim 3, wherein a plurality of air outlet holes are formed in the lower side of the air blowing cover.
5. A downhole tunnel spray dust settling device according to claim 4, wherein the aperture of the air outlet holes is gradually increased from the inlet to the outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711315460.3A CN108005711B (en) | 2017-12-09 | 2017-12-09 | Underground roadway spraying dust-settling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711315460.3A CN108005711B (en) | 2017-12-09 | 2017-12-09 | Underground roadway spraying dust-settling device |
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| CN108005711A CN108005711A (en) | 2018-05-08 |
| CN108005711B true CN108005711B (en) | 2020-06-19 |
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| CN201711315460.3A Active CN108005711B (en) | 2017-12-09 | 2017-12-09 | Underground roadway spraying dust-settling device |
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| US9867782B2 (en) | 2009-04-09 | 2018-01-16 | Entegrion, Inc. | Spray-dried blood products and methods of making same |
| WO2011035062A2 (en) | 2009-09-16 | 2011-03-24 | Velico Medical, Inc. | Spray dried human plasma |
| US9561184B2 (en) | 2014-09-19 | 2017-02-07 | Velico Medical, Inc. | Methods and systems for multi-stage drying of plasma |
| CN108757004B (en) * | 2018-05-14 | 2019-09-24 | 中煤科工集团重庆研究院有限公司 | Automatic hydraulic support moving frame dust removal device |
| US11841189B1 (en) | 2022-09-15 | 2023-12-12 | Velico Medical, Inc. | Disposable for a spray drying system |
| US11998861B2 (en) | 2022-09-15 | 2024-06-04 | Velico Medical, Inc. | Usability of a disposable for a spray drying plasma system |
| US12539355B2 (en) | 2022-09-15 | 2026-02-03 | Velico Medical, Inc. | Dryer for a spray drying system |
| US12083447B2 (en) | 2022-09-15 | 2024-09-10 | Velico Medical, Inc. | Alignment of a disposable for a spray drying plasma system |
| US11975274B2 (en) | 2022-09-15 | 2024-05-07 | Velico Medical, Inc. | Blood plasma product |
| WO2024059770A1 (en) | 2022-09-15 | 2024-03-21 | Velico Medical, Inc. | Rapid spray drying system |
| US12246093B2 (en) | 2022-09-15 | 2025-03-11 | Velico Medical, Inc. | Methods for making spray dried plasma |
| US12246266B2 (en) | 2022-09-15 | 2025-03-11 | Velico Medical, Inc. | Disposable for a spray drying system |
| CN119333204B (en) * | 2024-12-05 | 2025-07-08 | 中铁五局集团有限公司 | A dust removal system for tunnel construction |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040096819A (en) * | 2004-08-31 | 2004-11-17 | 풍림산업 주식회사 | Dust removal device |
| JP4722070B2 (en) * | 2007-03-20 | 2011-07-13 | 戸田建設株式会社 | Cleaning equipment for tunnel dust, exhaust gas, etc. |
| CN103599673A (en) * | 2013-10-25 | 2014-02-26 | 天津华庆百胜塑业有限公司 | Purification equipment capable of effectively treating dense smoke and dust |
| CN204208425U (en) * | 2014-10-23 | 2015-03-18 | 湖南德兴瓷业有限公司 | Dust removal cabinet |
| CN104474829B (en) * | 2014-12-18 | 2016-03-09 | 浙江洁宇环保装备科技有限公司 | Hybrid multi-stage dust removal machine |
| CN205042316U (en) * | 2015-10-08 | 2016-02-24 | 宜昌市家和现代农业机械有限公司 | Smoke and dust circulating filter apparatus |
| CN205135694U (en) * | 2015-11-20 | 2016-04-06 | 淮南市矿用电器设备有限责任公司 | A automatic dust fall atomizer for coal mine transportation |
| CN106731368A (en) * | 2015-11-23 | 2017-05-31 | 天津市方圆电气设备有限公司 | The emission-control equipment in power plant |
| CN206256925U (en) * | 2016-11-26 | 2017-06-16 | 中铁四局集团有限公司 | A mobile dust removal and harm reduction equipment suitable for tunnel construction |
| CN206642539U (en) * | 2017-04-14 | 2017-11-17 | 杭州港佳纺织仪器有限公司 | A kind of dust arrester of textile enterprise |
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