CN110152920A - A kind of coating cloud removal device - Google Patents
A kind of coating cloud removal device Download PDFInfo
- Publication number
- CN110152920A CN110152920A CN201910410698.7A CN201910410698A CN110152920A CN 110152920 A CN110152920 A CN 110152920A CN 201910410698 A CN201910410698 A CN 201910410698A CN 110152920 A CN110152920 A CN 110152920A
- Authority
- CN
- China
- Prior art keywords
- coating cloud
- removal device
- curtain plate
- washing
- water curtain
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011248 coating agent Substances 0.000 title claims abstract description 44
- 238000000576 coating method Methods 0.000 title claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 65
- 238000005406 washing Methods 0.000 claims abstract description 37
- 238000005507 spraying Methods 0.000 claims abstract description 5
- 239000007921 spray Substances 0.000 claims description 17
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 230000007613 environmental effect Effects 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
- B05B14/40—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths
- B05B14/46—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by washing the air charged with excess material
- B05B14/465—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by washing the air charged with excess material using substantially vertical liquid curtains or wetted walls behind the object to be sprayed
Landscapes
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
Abstract
The invention discloses a kind of coating cloud removal devices, it is related to technical field of environment protection equipment, including interconnected trap chamber and washing chamber, the side opening of the trap chamber forms an air intake vent, the trap chamber includes the water curtain plate being in tilted layout, the water curtain plate is arranged towards the direction of the air intake vent, water flow part is installed at the top of the water curtain plate, the washing chamber lower part is equipped with the communicating passage being connected to the trap chamber, the entrance of the communicating passage is located at below the water curtain plate, the washing chamber top is equipped with air outlet, the washing components being disposed with inside the washing chamber above the communicating passage, the washing components include at least one wash, each wash includes spraying part and the dewatering member positioned at upper layer positioned at lower layer.Structure of the invention is compact, can improve the removal effect of coating cloud.
Description
Technical field
The present invention relates to technical field of environment protection equipment, in particular to a kind of coating cloud removal device.
Background technique
Currently, cascade paint spray booth is a kind of equipment for utilizing water to capture coating cloud, basic process is: in exhaust blower gravitation
Under the action of, the air containing coating cloud is flowed to the inner wall water curtain plate direction of cascade paint spray booth, and a part of coating cloud directly contacts
Moisture film on water curtain plate and be adsorbed, a part of coating cloud is washed away in the cascade by dropping down on water curtain plate by cascade, remaining
The remaining coating cloud not captured by moisture film and cascade is cleaned out by water-washing method again.
But current cascade paint spray booth is since the time of contact of the air containing coating cloud and water is shorter, or contact is not
Sufficiently, coating cloud removal effect is not thorough, and coating cloud still has a large amount of residuals.Although have at present producer extend the air containing coating cloud with
The time of contact of water, but equipment is excessively huge, occupies a large amount of hall spaces.
Summary of the invention
The purpose of the present invention is to provide a kind of coating cloud removal device, can be improved the removal effect of coating cloud.
Used technical solution to solve above-mentioned technical problem:
A kind of coating cloud removal device, including interconnected trap chamber and washing chamber, the side opening shape of the trap chamber
At an air intake vent, the trap chamber includes the water curtain plate being in tilted layout, which arranges towards the direction of the air intake vent, described
Water flow part is installed, the washing chamber lower part is equipped with the communicating passage being connected to the trap chamber, the connection at the top of water curtain plate
The entrance in channel is located at below the water curtain plate, and the washing chamber top is equipped with air outlet, is disposed with position inside the washing chamber
Washing components above the communicating passage, the washing components include at least one wash, and each wash is equal
Including spraying part and positioned at the dewatering member on upper layer positioned at lower layer.
As a further improvement of the above technical scheme, each wash above and or below is disposed with rotation cylinder and leads
The axis centre line of aerofoil, the rotation cylinder wind deflector is arranged vertically, and the rotation cylinder wind deflector includes multiple blades, each blade
In the longitudinal center line even circumferential distribution of rotation cylinder wind deflector, each blade is in tilted layout, each blade bottom end face
For wind-guiding face, air guide channel is formed between the two neighboring blade, each air guide channel is along rotation cylinder wind deflector
Longitudinal center line even circumferential be distributed and air driven to flow in the shape of a spiral.
As a further improvement of the above technical scheme, the communicating passage includes interconnected vertical channel and is in
The entrance of spiral helicine horizontal channel, the communicating passage is arranged on horizontal channel, and the outlet of the communicating passage is arranged in
On vertical channel.
As a further improvement of the above technical scheme, the water flow part includes overflow launder and is connected to the of the overflow launder
One water injection pipe.
As a further improvement of the above technical scheme, each part that sprays includes that several spray head and each leaching of connection
Second water injection pipe of spray head.
As a further improvement of the above technical scheme, each dewatering member includes multiple environmentally friendly hollow spheres.
It as a further improvement of the above technical scheme, further include a suction pump, the trap chamber arranged beneath, which has, catchments
Slot, the pump intake that draws water are connected to the catch basin, the first water injection pipe described in the suction pump outlet and each second water filling
Pipe.
As a further improvement of the above technical scheme, the water curtain plate bottom offers sawtooth.
As a further improvement of the above technical scheme, the trap chamber is provided with deflector, which is obliquely installed,
The deflector lower end forms a long and narrow flow-guiding mouth after the water curtain plate.
As a further improvement of the above technical scheme, the air outlet connects a blower or connects a wind by pipeline
Machine.
The beneficial effects of the present invention are: separately design interconnected trap chamber and washing chamber, the air containing coating cloud by
After the air intake vent of trap chamber passes into capture and washing, flowed out from the air outlet of washing chamber, in trap chamber, the water flow of water flow part
It trickles in the water curtain plate formation cascade of inclination arrangement, coating cloud can be adsorbed and be washed away to splashing uniform, continuous and with out splash, and wash
In room, each wash washs air, and the moisture for spraying part ejection is sufficiently combined with air, then by removing water
Part removes the moisture in air, coating cloud with water mist in conjunction with after it is intercepted in dewatering member, so that coating cloud in air sufficiently be removed；
In addition, rotation cylinder wind deflector is disposed in each wash above and or below, after washing chamber capable of being admitted air into, in washing chamber
In in the shape of a spiral rise flowing, air flowing lengthened stroke, coating cloud can sufficiently with spray part blowing moisture be combined, into
One step improves the catch rate of residual coating cloud.Structure of the invention is compact, can improve the removal effect of coating cloud.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described.Obviously, described attached drawing is a part of the embodiments of the present invention, rather than is all implemented
Example, those skilled in the art without creative efforts, can also be obtained according to these attached drawings other designs
Scheme and attached drawing.
Fig. 1 is the perspective view of the embodiment of the present invention；
Fig. 2 is the perspective view at another visual angle of the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the embodiment of the present invention；
Fig. 4 is the structural schematic diagram that cylinder wind deflector is revolved in the embodiment of the present invention.
Specific embodiment
It is carried out below with reference to technical effect of the embodiment and attached drawing to design of the invention, specific structure and generation clear
Chu is fully described by, to be completely understood by the purpose of the present invention, feature and effect.Obviously, described embodiment is this hair
Bright a part of the embodiment, rather than whole embodiments, based on the embodiment of the present invention, those skilled in the art are not being paid
Other embodiments obtained, belong to the scope of protection of the invention under the premise of creative work.In addition, be previously mentioned in text
All connection/connection relationships not singly refer to that component directly connects, and referring to can be added deduct according to specific implementation situation by adding
Few couple auxiliary, Lai Zucheng more preferably coupling structure.
Referring to figs. 1 to Fig. 3, a kind of coating cloud removal device, including interconnected trap chamber 10 and washing chamber 20, trap chamber
10 side opening forms an air intake vent 16, and trap chamber 10 includes the water curtain plate 11 being in tilted layout, and the water curtain plate 11 is towards air intake vent
16 direction is arranged, water flow part is equipped at the top of water curtain plate 11, it is logical that 20 lower part of washing chamber is equipped with the connection being connected to trap chamber 10
Road, the entrance of communicating passage are located at 11 lower section of water curtain plate, and 20 top of washing chamber is equipped with air outlet 26.Also, air outlet 26 connects
One blower connects a blower by pipeline, i.e., drives air from air intake vent 16 successively by trap chamber 10 and washing by blower
Behind room, then from air outlet outflow, blower is not illustrated, this is the prior art, is not described in detail, and the effect of blower is to use
Air port 26 forms negative pressure, flows into air from air intake vent 16.Specifically, water flow part includes overflow launder 14 and is connected to the overflow
First water injection pipe 42 of slot 14, water flow go out from 14 side wall overflow of overflow launder, flow to the top of water curtain plate 11, and on water curtain plate 11
Trickling forms cascade.And communicating passage includes interconnected vertical channel 22 and spiral horizontal channel 21, connection
The entrance in channel is arranged on horizontal channel 21, and the outlet of communicating passage is arranged on vertical channel 22.Air containing coating cloud
Entering trap chamber 10 from air intake vent 16, a part of coating cloud is washed away in the cascade by dropping down on water curtain plate 11 by cascade, and
11 bottom of water curtain plate offers sawtooth 12, and when the cascade on water curtain plate 11 flow to its bottom, water flow and air are by sawing
Tooth 12, which makes to be divided, to be broken up, and the coating cloud in air can be preferably combined with water flow, and be entered in communicating passage.
In addition, being disposed with the washing components above communicating passage inside washing chamber 20, which includes at least
One wash, each wash include spraying part and the dewatering member positioned at upper layer positioned at lower layer.Specifically, each
Spray part include several spray first 24 and connection respectively spray first 24 the second water injection pipe 43；Each dewatering member includes multiple environmental protection
Hollow sphere 25.Environmentally friendly hollow sphere 25 is the prior art, can directly buy, substantially be introduced on the market by taking one of which as an example,
Environmentally friendly hollow sphere can be used polypropylene plastics and be made, and synthesizes a spherical shape by two hemisphere, is provided with 12 half on each hemisphere
The sector of sector, two hemisphere mutually staggers.In the present embodiment, the environmentally friendly hollow sphere 25 of each dewatering member is laid with altogether
Multilayer, and the mounting rack for placing dewatering member is installed in washing chamber 20, mounting rack not shown in figure, mounting rack can be set to
The environmentally friendly hollow sphere 25 of two layers of flase floor, dewatering member can be placed in two layers of flase floor, and the environmentally friendly hollow sphere 25 of multilayer laying can
Effectively intercept the moisture in air.Air sprays in part after communicating passage outflow and respectively sprays the mist-like of first 24 sandblasting
Water flow is combined with air, at this point, the coating cloud under remaining in air can be further in conjunction with water flow, air can be in dewatering member
Moisture removal is removed, and is flowed out from air outlet 26, for the washing effect for increasing coating cloud, passes through the catch rate of residual coating cloud, the present embodiment
Two wash are set altogether.
In addition, each wash above and or below is disposed with rotation cylinder wind deflector 23, referring to Fig. 4, cylinder wind deflector 23 is revolved
Axis centre line is arranged vertically, and rotation cylinder wind deflector 23 includes multiple blades 232, and each blade 232 is in the axial direction for revolving cylinder wind deflector 23
The distribution of center line even circumferential, each blade 232 are in tilted layout, and each 232 bottom end face of blade is wind-guiding face, two neighboring blade
Air guide channel 233 is formed between 232, each air guide channel 233 is equal along the longitudinal center line circumference of rotation cylinder wind deflector 23
Even distribution simultaneously drives air to flow in the shape of a spiral, and rotation cylinder wind deflector 23 includes annulus frame 231, and each blade 232 is respectively mounted annulus frame
In 231, annulus frame 231 is mountable in washing chamber 20.In the present embodiment, the wash arranged beneath of lower layer has rotation cylinder wind-guiding
Plate 23, the wash top on upper layer is disposed with rotation cylinder wind deflector 23, after two rotation cylinder wind deflectors 23 are set in washing chamber, air
The wind-guiding face that 232 bottom of blade in cylinder wind deflector 23 can accordingly be revolved guides, and flows out from each air guide channel 233, from
And after admitting air into washing chamber, rising is flowed in the shape of a spiral in washing chamber, the lengthened stroke of air flowing, is remained in air
Coating cloud can sufficiently with spray part blowing moisture be combined, further increase residual coating cloud catch rate.
Coating cloud removal device of the present invention further includes a suction pump 41, and 10 arranged beneath of trap chamber has catch basin 31, this draws water
Pump 41 entrances connection catch basin 31,41 first water injection pipe of outlet 42 of suction pump and each second water injection pipe 43.Catch basin 31
It is for receiving the water flow fallen in trap chamber 10, and the water flow of washing chamber 20 can also flow to catch basin 31, and the present embodiment also exists
One lautertuns 32 is installed by catch basin 31, intercommunication between lautertuns 32 and catch basin 31 can install filter material therebetween, and
41 entrance of suction pump is specifically arranged on lautertuns 32.
It is further used as preferred embodiment, trap chamber 10 is provided with deflector 13, which is obliquely installed, should
13 lower end of deflector forms a long and narrow flow-guiding mouth 15 after water curtain plate 11, can prevent cascade from the phenomenon that spray of water occur,
Make cascade uniformly, continuously, gently.
Embodiments of the present invention are explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned embodiment party
Formula within the scope of knowledge possessed by those of ordinary skill in the art can also be before not departing from present inventive concept
Put that various changes can be made.
Claims (10)
1. a kind of coating cloud removal device, it is characterised in that: described to catch including interconnected trap chamber (10) and washing chamber (20)
The side opening for catching room (10) forms an air intake vent (16), and the trap chamber (10) includes the water curtain plate (11) being in tilted layout, should
Water curtain plate (11) is arranged towards the direction of the air intake vent (16), is equipped with water flow part, the washing at the top of the water curtain plate (11)
Room (20) lower part is equipped with the communicating passage being connected to the trap chamber (10), and the entrance of the communicating passage is located at the water curtain plate
(11) lower section, washing chamber (20) top are equipped with air outlet (26), are disposed with inside the washing chamber (20) positioned at the company
Washing components above circulation passage, the washing components include at least one wash, and each wash includes being located at
Lower layer sprays part and the dewatering member positioned at upper layer.
2. coating cloud removal device according to claim 1, it is characterised in that: each wash above and or below
It is disposed with rotation cylinder wind deflector (23), the axis centre line of rotation cylinder wind deflector (23) is arranged vertically, the rotation cylinder wind deflector
It (23) include multiple blades (232), each blade (232) is divided in the longitudinal center line even circumferential of rotation cylinder wind deflector (23)
Cloth, each blade (232) are in tilted layout, and each blade (232) bottom end face is wind-guiding face, the two neighboring blade
(232) air guide channel (233) are formed between, axial direction of each air guide channel (233) along rotation cylinder wind deflector (23)
Center line even circumferential is distributed and air is driven to flow in the shape of a spiral.
3. coating cloud removal device according to claim 2, it is characterised in that: the communicating passage includes interconnected hangs down
Straight channel (22) and spiral horizontal channel (21), the entrance of the communicating passage are arranged on horizontal channel (21),
The outlet of the communicating passage is arranged on vertical channel (22).
4. according to claim 1 to coating cloud removal device described in 3 any one, it is characterised in that: the water flow part includes overflowing
Chute (14) and the first water injection pipe (42) for being connected to the overflow launder (14).
5. coating cloud removal device according to claim 4, it is characterised in that: spraying part described in each includes that several spray head
(24) and connection respectively sprays the second water injection pipe (43) of head (24).
6. coating cloud removal device according to claim 4, it is characterised in that: each dewatering member includes that multiple environmental protection are hollow
Ball (25).
7. coating cloud removal device according to claim 5, it is characterised in that: further include a suction pump (41), the capture
Room (10) arranged beneath has catch basin (31), which is connected to the catch basin (31), which goes out
Mouth is connected to first water injection pipe (42) and each second water injection pipe (43).
8. according to claim 1 to coating cloud removal device described in 3 any one, it is characterised in that: water curtain plate (11) bottom
Portion offers sawtooth (12).
9. according to claim 1 to coating cloud removal device described in 3 any one, it is characterised in that: the trap chamber (10) sets
Deflector (13) are equipped with, which is obliquely installed, which forms afterwards close to the water curtain plate (11)
One long and narrow flow-guiding mouth (15).
10. according to claim 1 to coating cloud removal device described in 3 any one, it is characterised in that: the air outlet (26) is even
It connects a blower or a blower is connected by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910410698.7A CN110152920A (en) | 2019-05-17 | 2019-05-17 | A kind of coating cloud removal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910410698.7A CN110152920A (en) | 2019-05-17 | 2019-05-17 | A kind of coating cloud removal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110152920A true CN110152920A (en) | 2019-08-23 |
Family
ID=67631070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910410698.7A Pending CN110152920A (en) | 2019-05-17 | 2019-05-17 | A kind of coating cloud removal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110152920A (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09150082A (en) * | 1995-12-01 | 1997-06-10 | Showa:Kk | Coating booth |
| KR20080000292U (en) * | 2006-09-06 | 2008-03-11 | 송재원 | Air purifying system for spray booth using specific gravity and inertia force from circular motion |
| CN201257420Y (en) * | 2008-05-16 | 2009-06-17 | 路林茫 | Spraying cabinet with rotational flow board purifier |
| CN201940322U (en) * | 2010-12-24 | 2011-08-24 | 张文军 | Eddy paint spray chamber |
| CN202860352U (en) * | 2012-10-16 | 2013-04-10 | 湖南吉利汽车部件有限公司 | Paint mist trapping purifying treatment system for automobile painting |
| CN203764468U (en) * | 2014-04-22 | 2014-08-13 | 何岸清 | Environment-friendly water curtain machine |
| CN104437949A (en) * | 2014-12-11 | 2015-03-25 | 天津赛智科技发展有限公司 | Double-atomization capturing electrostatic paint spray booth |
| CN205288814U (en) * | 2015-12-22 | 2016-06-08 | 武汉恒信达涂装设备有限公司 | High -efficient spray booth that purifies of helical drum |
| CN205628425U (en) * | 2016-04-25 | 2016-10-12 | 无锡天旭机械科技有限公司 | Cascade spouts room |
| CN207271499U (en) * | 2017-12-13 | 2018-04-27 | 贵阳价联涂装机械有限公司 | Environmentally friendly side curtain oil curtain machine and oil curtain device |
| CN108160381A (en) * | 2017-12-29 | 2018-06-15 | 扬州琼花涂装工程技术有限公司 | Water curtain type paint spray booth |
| CN109127243A (en) * | 2018-10-17 | 2019-01-04 | 宜昌元龙塑模技术开发有限责任公司 | Environment-friendly type bottle sprays water-screen cabinet and application method |
| CN109433501A (en) * | 2018-12-24 | 2019-03-08 | 永康市恒久涂装设备有限公司 | A kind of multi-level water whirling paint-spraying cabinet |
| CN210252847U (en) * | 2019-05-17 | 2020-04-07 | 广州中创环保科技有限公司 | Paint mist removing device |
-
2019
- 2019-05-17 CN CN201910410698.7A patent/CN110152920A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09150082A (en) * | 1995-12-01 | 1997-06-10 | Showa:Kk | Coating booth |
| KR20080000292U (en) * | 2006-09-06 | 2008-03-11 | 송재원 | Air purifying system for spray booth using specific gravity and inertia force from circular motion |
| CN201257420Y (en) * | 2008-05-16 | 2009-06-17 | 路林茫 | Spraying cabinet with rotational flow board purifier |
| CN201940322U (en) * | 2010-12-24 | 2011-08-24 | 张文军 | Eddy paint spray chamber |
| CN202860352U (en) * | 2012-10-16 | 2013-04-10 | 湖南吉利汽车部件有限公司 | Paint mist trapping purifying treatment system for automobile painting |
| CN203764468U (en) * | 2014-04-22 | 2014-08-13 | 何岸清 | Environment-friendly water curtain machine |
| CN104437949A (en) * | 2014-12-11 | 2015-03-25 | 天津赛智科技发展有限公司 | Double-atomization capturing electrostatic paint spray booth |
| CN205288814U (en) * | 2015-12-22 | 2016-06-08 | 武汉恒信达涂装设备有限公司 | High -efficient spray booth that purifies of helical drum |
| CN205628425U (en) * | 2016-04-25 | 2016-10-12 | 无锡天旭机械科技有限公司 | Cascade spouts room |
| CN207271499U (en) * | 2017-12-13 | 2018-04-27 | 贵阳价联涂装机械有限公司 | Environmentally friendly side curtain oil curtain machine and oil curtain device |
| CN108160381A (en) * | 2017-12-29 | 2018-06-15 | 扬州琼花涂装工程技术有限公司 | Water curtain type paint spray booth |
| CN109127243A (en) * | 2018-10-17 | 2019-01-04 | 宜昌元龙塑模技术开发有限责任公司 | Environment-friendly type bottle sprays water-screen cabinet and application method |
| CN109433501A (en) * | 2018-12-24 | 2019-03-08 | 永康市恒久涂装设备有限公司 | A kind of multi-level water whirling paint-spraying cabinet |
| CN210252847U (en) * | 2019-05-17 | 2020-04-07 | 广州中创环保科技有限公司 | Paint mist removing device |
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