CN104759382B - Dry type spray room of double-chamber double-pressure structure - Google Patents
Dry type spray room of double-chamber double-pressure structure Download PDFInfo
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- CN104759382B CN104759382B CN201510143044.4A CN201510143044A CN104759382B CN 104759382 B CN104759382 B CN 104759382B CN 201510143044 A CN201510143044 A CN 201510143044A CN 104759382 B CN104759382 B CN 104759382B
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Abstract
The invention discloses a dry type spray room of a double-chamber double-pressure structure. The dry type spray room comprises a spray inner room (2), and is characterized in that a spray outer room (1) is arranged on the outer side of the spray inner room (2); an outer room workpiece entrance and exit (6) is provided with an air inlet (4); an inner room workpiece entrance and exit (7) is provided with a pressure difference adjusting door (8); the top of the spray inner room (2) is provided with an exhaust fan (5); a spray lifting device (9) is arranged on the outer side of the spray inner room (2) and is provided with an electrostatic spray gun; a paint mist collection system (12) is also arranged in the spray inner room (2). The double-room structure consisting of the spray outer room and the spray inner room is adopted; air pressures in the spray outer room and the spray inner room can be automatically adjusted and controlled, so the paint mist and organic gas do not overflow; meanwhile, the four-layer filtration dry type paint mist collection and waste gas treatment system is adopted, so the paint mist collection and waste gas treatment effect is obviously improved and the pollution of external environment is effectively avoided.
Description
Technical field
The present invention relates to a kind of paint spray booth, the dry spray booth of the double laminated structure of more particularly, to a kind of dual chamber, belong to painting installing
Standby technical field.
Background technology
, as the place of spraying operation, mainly there are two kinds of forms paint spray booth at present, a kind of be no air feed open type spray painting
Room, the exclusion to coating cloud and organic gas is not thorough, and working environment is larger with the pollution in the face that is painted.Another is equipped with supplying
The closed paint spray booth of wind system, for preventing outside unclean air from getting in, usual paint spray booth air pressure keeps slight positive pressure state,
Preferably, the pollution being painted face is smaller for the exclusion of coating cloud and organic gas, but the problem that a small amount of coating cloud and organic gas leak
Cannot solve, the pollution to environment is still larger.Coating cloud is collected has wet type coating cloud to collect and dry paint-fog collection two ways at present,
Domestic commonly used collected wet, coating cloud collecting effect is poor and leads to secondary pollution because producing waste water.Have using setting gear paint plate
Or the example that the dry paint-fog of filter paper is collected, but because being all single use gear paint plate or filter paper, coating cloud is led to be collected and useless
Gas disposal effect is also undesirable.
For example China Patent Publication No. is: cn 2608144y, and the day for announcing is: on March 31st, 2004 utility model patent public affairs
Open a kind of paint spray booth, paint spray booth has been surrounded by room side wall, the bottom of this paint spray booth has been provided with tank, and the top of tank is provided with stream
Water guide plate, the sidepiece of this flowing water guide plate is provided with negative pressure air channel, and the bottom in negative pressure air channel is negative pressure channel entrance, under flowing water guide plate
Side is provided with a little tank, and little tank can prevent the fine grinding falling through flowing water guide plate from splashing on the workpiece being painted.But this dress
Put structure simple, only with one protection walls room, coating cloud and organic gas are easily excessive from positions such as the gaps of paint spray booth, make
Become the pollution of external environment.
Content of the invention
The purpose of the present invention is simple for existing spray painting cell structure, only with one protection walls room isolation effect relatively
Difference, is easily caused the excessive of coating cloud and organic gas, causes the defects such as the pollution of external environment and deficiency.A kind of structure is now provided
Rationally, using inside and outside two-layer guard chamber, and spray mistress and adopt pressure-fired, spraying interior room adopts tiny structure, effectively blocks spray
The indoor coating cloud of paint and the spilling of organic gas, it is to avoid produce the pollution of environment to external world, block outside unclean air simultaneously and enter
Paint spray booth a kind of double laminated structure of dual chamber paint spray booth.
In addition, the present invention is directed to existing wet type coating cloud collection mode, coating cloud collecting effect difference simultaneously produces secondary waste water pollution,
It is used alone gear paint plate or filter paper is collected coating cloud and leads to coating cloud collecting effect undesirable, now provide a kind of deflection plate that includes to filter
A kind of double laminated structure of dual chamber of four layers of filtration of device, venturi paper filter, filter cotton absorbed layer and activated carbon absorbed layer
Paint spray booth.
For achieving the above object, the technical solution of the present invention is: a kind of dry spray booth of the double laminated structure of dual chamber, bag
Include spraying interior room, the outside of described spraying interior room is provided with spraying mistress, the axis of spraying mistress and spraying interior room is run through
It is provided with workpiece conveyer chain, on the outer wall of spraying mistress and be provided with mistress's workpiece near workpiece conveyer chain and import and export, outward
Room workpiece is imported and exported and is provided with air inlet, and air inlet is connected with positioned at the outside air inlet fan spraying outer outdoor, in spraying
On the side wall of room and it is provided with interior room workpiece near workpiece conveyer chain to import and export, interior room workpiece is imported and exported and is provided with pressure reduction
Adjust door, the outside of spraying interior room is provided with spraying lowering or hoisting gear, spraying lowering or hoisting gear is provided with and extend into interior in spraying
The paint sprayer in portion, the inside of spraying interior room is provided with coating cloud collection system, and coating cloud collection system includes baffling panel filter, literary composition
Paper filter, filter cotton absorbed layer and activated carbon absorbed layer in mound, the side being sequentially arranged at spraying interior room is to air exhauster
Between, air exhauster is arranged on the top of spraying interior room.
Described interior room workpiece is imported and exported and is provided with pressure reduction and adjusts door, pressure reduction adjust door be electronic slip relatively move door
Structure.
The inside of described spraying mistress and spraying interior room is respectively arranged with baroceptor, and outside air inlet fan, air exhauster divide
Be not connected with frequency-variable controller, baroceptor is connected with the input of plc respectively, the outfan of plc respectively with frequency conversion
Controller adjusts door with pressure reduction and is connected.
Described spraying mistress be internally provided with a spraying interior room or tandem is provided with two spraying interior rooms, one of
The side of spraying interior room is provided with the spray equipment in spraying workpiece front, and the relative opposite side of another spraying interior room is provided with spray
Apply the spray equipment of workpiece reverse side.
Described paint sprayer adopts the electrostatic gun of about two interlaced arrangement, and electrostatic gun passes through pipeline and paint respectively
Pump pressure assembly is connected.
Described spraying interior room inside coating cloud collection system is installed, the entrance of coating cloud collection system towards paint sprayer,
The outlet of coating cloud collection system is located at the suction opeing of air exhauster.
Described coating cloud collection system includes baffling panel filter, venturi paper filter, filter cotton absorbed layer and work
Property charcoal absorbed layer, baffling panel filter is located at the arrival end of coating cloud collection system, and baffling panel filter faces paint sprayer and set
Put, the behind of baffling panel filter is provided with venturi paper filter, and the top of coating cloud collection system is provided with activated carbon and inhales
Receive layer, the upper end of activated carbon absorbed layer is the port of export of coating cloud collection system, and the underface of activated carbon absorbed layer is provided with filtration
Cotton absorbed layer.
The pressure-fired environment of 30pa to 70pa is kept, spraying interior room is protected in storehouse between described spraying mistress and spraying interior room
Hold the tiny structure environment of -30pa to -50pa.
Described mistress's workpiece is imported and exported to be provided with and can be formed air curtain to block the air curtain that outside unclean air enters.
It is provided with, on the outer wall of described spraying mistress, the maintenance inlet/outlet that one or two is interspersed.
The invention has the beneficial effects as follows:
1st, present invention employs the double-chamber structure that spraying mistress and spraying interior room are constituted, spraying mistress passes through outside air inlet fan
Keep pressure-fired environment, spraying interior room keeps tiny structure environment by the air exhauster that top is installed, using this dual chamber positive/negative-pressure
Mode make to paint indoor coating cloud and organic gas will not overflow, the outdoor unclean air of spray painting can not enter paint spray booth
Interior, effectively prevent the pollution of environment to external world and to the pollution being applied part application face.
2nd, the present invention imports and exports in mistress's workpiece and is also equipped with producing the air curtain of air curtain, can effectively block outside not
Clean air enter into spraying mistress inside, simultaneously spraying interior room inside four layers of coating cloud collection system are installed it is achieved that from
The abundant filtration of air exhauster air-out, effectively have collected coating cloud and has filtered harmful substance and organic gas.
3rd, the present invention interior room workpiece import and export on be provided with pressure reduction adjust door it is achieved that inside and outside room air pressure quick
Adjust, the inside of spraying mistress and spraying interior room is respectively arranged with baroceptor, can real-time detection air pressure situation, and pass through
Plc adjusts the control of door it is achieved that the Automated condtrol of air pressure detection, blast velocity control to frequency-variable controller and pressure reduction, finally real
Show the auto-adjustment control of air pressure in spraying mistress and spraying interior room.
Brief description
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the internal structure schematic diagram of spraying interior room.
In figure: spraying mistress 1, spray interior room 2, outside air inlet fan 3, air inlet 4, air exhauster 5, mistress's workpiece imports and exports 6,
Interior room workpiece imports and exports 7, and pressure reduction adjusts door 8, sprays lowering or hoisting gear 9, paint sprayer 10, workpiece conveyer chain 11, coating cloud collects system
System 12, overhauls inlet/outlet 13, baffling panel filter 14, venturi paper filter 15, filter cotton absorbed layer 16, activated carbon absorbs
Layer 17, paint pump pressure assembly 18.
Specific embodiment
Below in conjunction with brief description and specific embodiment, the present invention is described in further detail.
Referring to Fig. 1, Fig. 2, a kind of dry spray booth of the double laminated structure of dual chamber of invention, including spraying interior room 2, its feature exists
In: the outside of described spraying interior room 2 is provided with spraying mistress 1, and setting is run through in the axis of spraying mistress 1 and spraying interior room 2
There is workpiece conveyer chain 11, be provided with positioned at workpiece conveyer chain 11 mistress workpiece on the outer wall of spraying mistress 1 and nearby and import and export 6,
Mistress's workpiece is imported and exported and is provided with air inlet 4 on 6, and air inlet 4 is connected with positioned at the outside air inlet fan 3 spraying outside mistress 1,
It is provided with positioned at workpiece conveyer chain 11 interior room workpiece on the side wall of spraying interior room 2 and nearby and imports and exports 7, interior room workpiece imports and exports 7
On be provided with pressure reduction adjust door 8, spraying interior room 2 outside be provided with spraying lowering or hoisting gear 9, spraying lowering or hoisting gear 9 on be provided with
It extend into the paint sprayer 10 within spraying interior room 2, the inside of spraying interior room 2 is provided with coating cloud collection system 12, and coating cloud is collected
System 12 includes baffling panel filter 14, venturi paper filter 15, filter cotton absorbed layer 16 and activated carbon absorbed layer 17,
To air exhauster 5, air exhauster 5 is arranged on the top of spraying interior room 2 for the side being sequentially arranged at spraying interior room 2.
Described interior room workpiece is imported and exported and is provided with pressure reduction regulation door 8 on 7, and it is the electronic shifting relatively slided that pressure reduction adjusts door 8
Dynamic door.
The inside of described spraying mistress 1 and spraying interior room 2 is respectively arranged with baroceptor, outside air inlet fan 3, air exhauster
5 are connected with frequency-variable controller respectively, and baroceptor is connected with the input of plc respectively, the outfan of plc respectively with change
Frequency controller adjusts door 8 with pressure reduction and is connected.
Described spraying mistress 1 be internally provided with one spraying interior room 2 or tandem be provided with two spraying interior rooms 2, wherein
The side of one spraying interior room 2 is provided with the spray equipment in spraying workpiece front, and the relative opposite side of another spraying interior room 2 sets
It is equipped with the spray equipment of spraying workpiece reverse side.
Described paint sprayer 10 adopts the electrostatic gun of about two interlaced arrangement, and electrostatic gun passes through pipeline and oil respectively
Paint pump pressure assembly 18 is connected.
The inside of described spraying interior room 2 is provided with coating cloud collection system 12, and the entrance of coating cloud collection system 12 is towards paint
Spray gun 10, the outlet of coating cloud collection system 12 is located at the suction opeing of air exhauster 5.
Described coating cloud collection system 12 includes baffling panel filter 14, venturi paper filter 15, filter cotton absorbed layer
16 and activated carbon absorbed layer 17, baffling panel filter 14 correspond to the arrival end of coating cloud collection system 12, baffling panel filter
14 face paint sprayer 10 is arranged, and the behind of baffling panel filter 14 is provided with venturi paper filter 15, and coating cloud is collected
The top of system 12 is provided with activated carbon absorbed layer 17, and the upper end of activated carbon absorbed layer 17 is the outlet of coating cloud collection system 12
End, the underface of activated carbon absorbed layer 17 is provided with filter cotton absorbed layer 16.
Keep the pressure-fired environment of 30pa to 70pa in storehouse between described spraying mistress 1 and spraying interior room 2, spray interior room
The 2 tiny structure environment keeping -30pa to -50pa.
Described mistress's workpiece import and export 6 are provided with and can form air curtain to block the air curtain that outside unclean air enters.
It is provided with, on the outer wall of described spraying mistress 1, the maintenance inlet/outlet 13 that one or two is interspersed.
Referring to accompanying drawing 1, the paint spray booth of the present invention employs double-chamber structure it may be assumed that spraying mistress 1 and spraying interior room 2, sprays outer
Being internally provided with of room 1 sprays interior room 2.The inside of spraying interior room 2 carries out spray painting operation, between spraying mistress 1 and spraying interior room 2
Region and spraying mistress 1 side wall be used for playing buffer action.Run through on the axis of spraying mistress 1 and spraying interior room 2
It is provided with workpiece conveyer chain 11, on the outer wall of spraying mistress 1 and positioned at workpiece conveyer chain 11, be nearby provided with the turnover of mistress's workpiece
Mouth 6, is provided with positioned at workpiece conveyer chain 11 interior room workpiece on the side wall of spraying interior room 2 and nearby and imports and exports 7, the work of needs spray painting
Part sequentially passes through in the presence of workpiece conveyer chain 11 and enters into spraying from mistress's workpiece import and export 6 and interior room workpiece import and export 7
Interior room 2.
Air inlet 4, air inlet 4 and the outside air inlet fan outside positioned at spraying mistress 1 are provided with mistress's workpiece import and export 6
3 are connected, and extraneous cleaned air can be sent to the inside of spraying mistress 1 by outside air inlet fan 3 through air inlet 4, and makes
The pressure-fired environment keeping 30pa to 70pa in the storehouse between mistress 1 and spraying interior room 2 must be sprayed, this ensures that there paint spray booth
The unclean air of outside will not enter into spraying mistress 1 and the inside of spraying interior room 2.The top of spraying interior room 2 is provided with takes out
Blower fan 5, air exhauster 5 is constantly extracted out so that spraying interior room 2 keeps -30pa as needed by spraying the air after purifying in interior room 2
To the tiny structure environment of -50pa, so allow for the coating cloud in spraying interior room 2 and organic gas will not overflow, effectively prevent
The pollution of environment to external world.Mistress's workpiece is imported and exported 6 and is also equipped with producing the air curtain of air curtain, can block outside unclean sky
Gas enters into inside spraying mistress 1.
In order to realize the quick regulation of inside and outside room air pressure, interior room workpiece is imported and exported and is provided with pressure reduction regulation door 8 on 7,
Pressure reduction adjusts door 8 and is used for connection spraying mistress 1 and spraying interior room 2.Pressure reduction adjusts door 8 and is designed as adjustable electronic slip relatively
Movable door structure, realize adjusting by mobile door opening size, pressure reduction adjusts door 8 and coordinates with air exhauster 5, common realize interior
The regulation of mistress's air pressure is so that spraying interior room 2 maintains tiny structure environment all the time.In order to improve spraying mistress 1 and spraying further
The control effect of interior room 2 air pressure inside, the present invention is respectively arranged with air pressure sensing in the inside of spraying mistress 1 and spraying interior room 2
Device, for real-time detection air pressure situation, outside air inlet fan 3, air exhauster 5 are connected with frequency-variable controller respectively, baroceptor
It is connected with the input of plc industrial control unit (ICU) respectively, the outfan of plc adjusts door 8 phase with frequency-variable controller and pressure reduction respectively
Connect it is achieved that air pressure detection, the Automated condtrol of blast velocity control, finally achieve spraying mistress 1 and spray interior room 2 air pressure
Auto-adjustment control.
Spraying mistress 1 be internally provided with one spraying interior room 2 or tandem be provided with two separate spraying interior rooms
2, the outside of spraying interior room 2 is provided with spraying lowering or hoisting gear 9, spraying lowering or hoisting gear 9 is provided with and extend into inside spraying interior room 2
Paint sprayer 10, spraying lowering or hoisting gear 9 is not located in spraying interior room 2 it can be avoided that the adverse effect to equipment for the coating cloud.If
Using Liang Ge paint spray booth, the side of one of spraying interior room 2 is provided with the spray equipment in spraying workpiece front, another spraying
The relative opposite side of interior room 2 is provided with the spray equipment of spraying workpiece reverse side, realizes the obverse and reverse spraying of workpiece successively.Spray
The maintenance inlet/outlet 13 that one or two is interspersed is provided with the outer wall applying mistress 1, maintenance inlet/outlet 13 is mainly for equipment
Maintenance uses, and only just opens in maintenance, closes sealing at ordinary times.
The present invention is provided with coating cloud collection system 12, the entrance direction of coating cloud collection system 12 in the inside of spraying interior room 2
Paint sprayer 10, the outlet of coating cloud collection system 12 is located at the suction opeing of air exhauster 5, at coating cloud collection system 12 filtration
Cleaned air after reason is extracted out by air exhauster 5.Specific as follows: coating cloud collection system 12 includes baffling panel filter 14, Wen Qiu
In paper filter 15, filter cotton absorbed layer 16 and activated carbon absorbed layer 17, and adopt easy-to-dismount draw and insert-type structure.
Baffling panel filter 14 is made using metal baffles, and venturi paper filter 15 is made using papery venturi, filter cotton
Absorbed layer 16 hinders paint cotton using glass fibre and makes.Baffling panel filter 14 correspond to the arrival end of coating cloud collection system 12, folding
Stream panel filter 14 faces paint sprayer 10 and arranges, and the behind of baffling panel filter 14 is provided with venturi paper filter
15, the top of coating cloud collection system 12 is provided with activated carbon absorbed layer 17, and the underface of activated carbon absorbed layer 17 is provided with filtration
Cotton absorbed layer 16.Through baffling panel filter 14, venturi paper filter 15, filter cotton absorbed layer 16 and activated carbon absorbed layer
17 this four layers filtration, coating cloud catch rate reaches more than 99%, and harmful gass output substantially reduces, and has reached good environmental protection effect
Really.
Above content is the further description present invention done with reference to specific embodiment it is impossible to think the present invention
Be embodied as be confined to these explanation, for general technical staff of the technical field of the invention, without departing from
On the premise of present inventive concept, the simple replacement made, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. the dry spray booth of the double laminated structure of a kind of dual chamber, include spraying interior room (2) it is characterised in that: described spray interior room (2)
Outside be provided with spraying mistress (1), spraying mistress (1) and spraying interior room (2) axis on be provided through workpiece transmit
Chain (11), is provided with positioned at workpiece conveyer chain (11) mistress workpiece on the outer wall of spraying mistress (1) and nearby and imports and exports (6), outward
Air inlet (4), air inlet (4) and the outside air inlet fan outside positioned at spraying mistress (1) are provided with room workpiece import and export (6)
(3) it is connected, be provided with positioned at workpiece conveyer chain (11) interior room workpiece on the side wall of spraying interior room (2) and nearby and import and export (7),
Interior room workpiece is imported and exported and is provided with pressure reduction regulation door (8) on (7), and the outside of spraying interior room (2) is provided with spraying lowering or hoisting gear
(9), spraying lowering or hoisting gear (9) is provided with and extend into the internal paint sprayer (10) of spraying interior room (2), spraying interior room (2)
Inside is provided with coating cloud collection system (12), and coating cloud collection system (12) includes baffling panel filter (14), venturi papery mistake
Filter (15), filter cotton absorbed layer (16) and activated carbon absorbed layer (17), the side being sequentially arranged at spraying interior room (2) is to taking out
Between blower fan (5), air exhauster (5) is arranged on the top of spraying interior room (2).
2. a kind of double laminated structure of dual chamber according to claim 1 dry spray booth it is characterised in that: described interior room workpiece
Import and export and pressure reduction regulation door (8) is provided with (7), it is the electronic movable door structure relatively sliding that pressure reduction adjusts door (8).
3. a kind of double laminated structure of dual chamber according to claim 1 dry spray booth it is characterised in that: described spraying mistress
(1) and spraying interior room (2) inside be respectively arranged with baroceptor, outside air inlet fan (3), air exhauster (5) respectively with frequency conversion
Controller is connected, and baroceptor is connected with the input of plc respectively, the outfan of plc respectively with frequency-variable controller and
Pressure reduction adjusts door (8) and is connected.
4. a kind of double laminated structure of dual chamber according to claim 1 dry spray booth it is characterised in that: described spraying mistress
(1) be internally provided with spraying interior room (2) or tandem is provided with two sprayings interior room (2), one of spraying interior room (2)
Side be provided with the spray equipment in spraying workpiece front, another spraying interior room (2) relative opposite side is provided with spraying work
The spray equipment of part reverse side.
5. a kind of double laminated structure of dual chamber according to claim 1 dry spray booth it is characterised in that: described paint sprayer
(10) adopt the electrostatic gun of about two interlaced arrangement, electrostatic gun is passed through pipeline respectively and is connected with paint pump pressure assembly (18)
Connect.
6. a kind of double laminated structure of dual chamber according to claim 1 dry spray booth it is characterised in that: described spraying interior room
(2) inside is provided with coating cloud collection system (12), and the entrance of coating cloud collection system (12) towards paint sprayer (10), receive by coating cloud
The outlet of collecting system (12) is located at the suction opeing of air exhauster (5).
7. a kind of double laminated structure of dual chamber according to claim 6 dry spray booth it is characterised in that: described coating cloud is collected
System (12) includes baffling panel filter (14), venturi paper filter (15), filter cotton absorbed layer (16) and activated carbon
Absorbed layer (17), baffling panel filter (14) is located at the arrival end of coating cloud collection system (12), and baffling panel filter (14) is just right
Paint sprayer (10) setting, the behind of baffling panel filter (14) is provided with venturi paper filter (15), and coating cloud is collected
The top of system (12) is provided with activated carbon absorbed layer (17), and the upper end of activated carbon absorbed layer (17) is coating cloud collection system (12)
The port of export, the underface of activated carbon absorbed layer (17) is provided with filter cotton absorbed layer (16).
8. a kind of double laminated structure of dual chamber according to claim 1 dry spray booth it is characterised in that: described spraying mistress
(1) keep the pressure-fired environment of 30pa to 70pa in the storehouse and spraying interior room (2) between, spraying interior room (2) keep -30pa extremely -
The tiny structure environment of 50pa.
9. a kind of double laminated structure of dual chamber according to claim 1 dry spray booth it is characterised in that: described mistress's workpiece
Import and export (6) are provided with and can form air curtain to block the air curtain that outside unclean air enters.
10. a kind of double laminated structure of dual chamber according to claim 1 dry spray booth it is characterised in that: described spraying is outer
The maintenance inlet/outlet (13) that one or two is interspersed is provided with the outer wall of room (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510143044.4A CN104759382B (en) | 2015-03-30 | 2015-03-30 | Dry type spray room of double-chamber double-pressure structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510143044.4A CN104759382B (en) | 2015-03-30 | 2015-03-30 | Dry type spray room of double-chamber double-pressure structure |
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| CN104759382A CN104759382A (en) | 2015-07-08 |
| CN104759382B true CN104759382B (en) | 2017-02-01 |
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| CN106076714B (en) * | 2016-08-11 | 2020-05-26 | 裕东（中山）机械工程有限公司 | Switchable full-automatic cleaning powder spraying chamber |
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| CN108714519A (en) * | 2018-08-09 | 2018-10-30 | 中核(天津)科技发展有限公司 | Environment-friendly type paint spray booth |
| CN109908693A (en) * | 2019-04-11 | 2019-06-21 | 湖北三环车桥有限公司 | Lubricate forging equipment closed type dust collection device |
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| US5236506A (en) * | 1991-07-03 | 1993-08-17 | Russell Mazakas | Method for installing a portable spray booth liner |
| CN201659046U (en) * | 2009-12-24 | 2010-12-01 | 广州珠江钢琴集团股份有限公司 | Electrostatic spraying system for piano shell painted parts |
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| Publication number | Publication date |
|---|---|
| CN104759382A (en) | 2015-07-08 |
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