CN112275065A - Dry treatment method for paint mist of paint spraying - Google Patents
Dry treatment method for paint mist of paint spraying Download PDFInfo
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- CN112275065A CN112275065A CN202010886445.XA CN202010886445A CN112275065A CN 112275065 A CN112275065 A CN 112275065A CN 202010886445 A CN202010886445 A CN 202010886445A CN 112275065 A CN112275065 A CN 112275065A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
Abstract
The invention discloses a dry treatment method of paint mist, which comprises the following steps: s1: building a paint mist dry-type treatment device; s2: starting the paint mist dry-type treatment device, and performing paint spraying operation on the wooden toy in the paint spraying cabinet; s3: paint mist generated by the paint spraying cabinet leaves the paint spraying cabinet under the action of the exhaust fan; s4: then the paint mist enters a centrifugal separation module and moves upwards along the helical blade from bottom to top; s5: after the dry paint mist enters the paint mist filtering module, the dry paint mist enters the dust removal device under the action of the exhaust fan, and the paint mist particles in the paint mist are further separated and intercepted through the interception effect of the filter element in the dust removal device. The invention has the advantages of high treatment efficiency of the water-based paint mist up to more than 99 percent, high comprehensive treatment efficiency of non-methane total hydrocarbon up to more than 90 percent, stable achievement of industrial particulate matter emission standard, avoidance of paint mist waste water generation, saving of paint mist treatment cost, simple operation and management and convenient maintenance.
Description
Technical Field
The invention belongs to the technical field of air pollution control in the coating industry of wooden toys, and particularly relates to a dry treatment method of paint mist.
Background
At present, most of wooden toys are coated through a water curtain paint spraying cabinet, most of used paint is changed into water-based paint, so that paint mist generated in the paint spraying process is mainly purified through water curtain absorption, but the waste water absorbing the paint mist is difficult to treat due to special components, and becomes an important environmental problem in the paint spraying industry.
The conventional dry treatment technique for exhaust gas is mainly a technique of adsorption by activated carbon, but the method has problems of saturated adsorption, disposal of waste activated carbon, large wind resistance and the like, and is not ideal.
Therefore, it is highly desirable to design a treatment method for treating the mist of water-based paint so as to avoid the generation of sewage.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a dry treatment method of paint mist.
The invention adopts the following specific technical scheme:
a dry treatment method of paint mist of a spray paint comprises the following specific steps:
s1: a paint mist dry-type treatment device is built, and the method specifically comprises the following steps:
placing the centrifugal separation module and the paint spraying cabinet together in a closed and hollow box body, wherein the outlet end of the centrifugal separation module is communicated with the inlet end of a paint mist filtering module positioned outside the box body through a connecting air pipe, and the top of the paint mist filtering module is provided with an exhaust fan;
the centrifugal separation module comprises a first shell, a helical blade and an exhaust pipeline, wherein the first shell is of a hollow cylindrical structure with a closed top and an open bottom; an exhaust pipeline is coaxially arranged in the first shell, a gap is formed between the top of the exhaust pipeline and the top of the first shell, and a helical blade is axially sleeved outside the exhaust pipeline; the outer diameter of the spiral blade is the same as the inner diameter of the first shell, and the pitch of the spiral blade is gradually increased from bottom to top;
the paint mist filtering module comprises a second shell and a dust removal device; the second shell is of a closed hollow structure, and the bottom of the side wall is provided with a through mounting hole; the mounting hole is provided with a connecting air pipe which is used for being communicated with the outlet end of the centrifugal separation module; the upper end of the inside of the second shell is provided with a baffle which completely seals the hollow inside of the second shell; the baffle plate is provided with a through air passing port, and the dust removal device is fixed at the bottom of the baffle plate and completely covers the air passing port; a gas outlet is formed in the second shell above the baffle;
the lower parts of the box body and the second shell are both gradually reduced funnel-shaped structures, and the bottoms of the box body and the second shell are provided with through holes and are respectively communicated with the first collecting hopper and the second collecting hopper;
s2: starting the paint mist dry-type treatment device, and performing paint spraying operation on the wooden toy in the paint spraying cabinet;
s3: paint mist generated by the paint spraying cabinet leaves the paint spraying cabinet under the action of an exhaust fan, paint mist particles and water drops in the paint mist are partially separated and settled under the action of gravity, and the separated and settled paint mist particles and water drops enter a first collecting hopper after being collected by a funnel-shaped structure at the lower part of a box body;
s4: then the paint mist enters a centrifugal separation module, moves upwards along the gap space of the helical blade from bottom to top, and the paint mist particles and water drops in the paint mist are separated and settled by gradually increasing the gap space of the helical blade and reducing the air flow speed; the separated and settled paint mist particles and water drops slide down along the helical blade under the action of gravity, and are collected by a funnel-shaped structure at the lower part of the box body and then enter a first collecting hopper; the dry paint mist moving to the top of the helical blade enters the paint mist filtering module through the connecting air pipe under the action of the exhaust fan;
s5: after entering the paint mist filtering module, the dried paint mist enters a dust removal device under the action of an exhaust fan, and paint mist particles in the paint mist are further separated and intercepted through the interception effect of a filter element in the dust removal device; and the tail gas treated by the dust removing device is discharged from a gas outlet of the paint mist filtering module under the guiding action of the exhaust fan.
Preferably, the bottom end of the exhaust pipeline is an outlet end of the centrifugal separation module; one end of the connecting air pipe is communicated with the bottom end of the exhaust pipeline, and the other end of the connecting air pipe is communicated with the paint mist filtering module; move into the coating cloud at helical blade top and get into exhaust pipe under the effect of air exhauster to move from top to bottom under exhaust pipe's guide effect, get into coating cloud filter module through connecting the trachea afterwards.
Preferably, two ends of the exhaust pipeline are closed, and the top of the first shell is provided with a through hole as an outlet end of the centrifugal separation module; one end of the connecting air pipe is communicated with the through hole at the top of the first shell, and the other end of the connecting air pipe is communicated with the paint mist filtering module; the dry paint mist moving to the top of the helical blade enters the paint mist filtering module through the connecting air pipe under the action of the exhaust fan.
Preferably, the helical blade is made of stainless steel.
Preferably, the top of the first housing is a tapered circular truncated cone-shaped structure.
Preferably, the dust removal device is a pulse type filter cartridge dust removal device.
Further, the pulse of the pulse type filter cartridge dust removal device is set to be 5 s/time.
Preferably, the filter element of the pulse type filter cartridge dust removal device is made of waterproof materials.
Preferably, the dust removing devices are arranged in a staggered manner in the second shell.
Preferably, an exhaust chamber is arranged on the second shell above the baffle, and gas outlets are formed in the top and the side wall of the exhaust chamber and used for discharging clean gas processed by the centrifugal separation module and the paint mist filtering module.
Compared with the prior art, the invention has the following beneficial effects:
1) according to the treatment device, the paint mist waste gas generated by the paint spraying cabinet is subjected to dehydration and drying treatment by the centrifugal separation module through negative pressure collection of the exhaust fan and then is introduced into the paint mist filtering module, so that the interception of paint mist particles is further realized, impurities in the paint mist waste gas are efficiently intercepted, and the standard-reaching emission of tail gas is realized.
2) The dry treatment method of the invention avoids the problem that the waste water is difficult to treat in the paint mist water curtain wet treatment method, the core technology of the method is that a dry filtering system is adopted to intercept and remove paint mist particles, because the water content of the paint mist is less without the water curtain, a centrifugal separation module is also arranged at the front end to avoid the blockage of the paint mist to a filter element in a dust removal device, and the flow velocity of the paint mist is reduced by increasing the spiral distance of each layer in the centrifugal separation module, thereby promoting the sedimentation of the paint mist particles in the spiral and reducing the load of the filter element. Meanwhile, the dust removal device adopts a pulse type filter cartridge dust removal device, and the blockage of the filter element is further avoided through a pulse type back flushing system of the pulse type filter cartridge dust removal device.
3) The invention avoids the generation of paint mist waste water, saves the cost of paint mist treatment, and has simple operation and management and convenient maintenance.
4) Through test operation of the treatment device, the result shows that the treatment efficiency of the treatment method of the invention on the water paint mist reaches more than 99%, the removal rate of non-methane total hydrocarbon reaches more than 90%, and the treatment method can stably reach the particulate matter emission standard of the industry.
Drawings
FIG. 1 is a flow chart of a process of the present invention;
FIG. 2 is a schematic view of a first structure of the processing apparatus of the present invention;
FIG. 3 is a top view of the processing apparatus of FIG. 2;
FIG. 4 is a schematic view of a second structure of the processing apparatus of the present invention;
FIG. 5 is a top view of the processing apparatus of FIG. 4;
FIG. 6 is a schematic diagram of a centrifugal separation module of the processing apparatus of the present invention;
FIG. 7 is a schematic view of the structure of the paint mist filtering module in the treating apparatus according to the present invention;
in the figure: 1-a paint spraying cabinet, 2-a centrifugal separation module, 21-a first shell, 22-a helical blade, 23-an exhaust pipeline, 3-a paint mist filtering module, 31-a second shell, 32-a dust removal device, 33-a baffle, 4-an air outlet, 5-a first collecting hopper, 6-a second collecting hopper, 7-an exhaust fan, 8-a connecting air pipe and 9-a box body.
Detailed Description
The invention will be further elucidated and described with reference to the drawings and the detailed description. The technical features of the embodiments of the present invention can be combined correspondingly without mutual conflict.
Referring to fig. 1, a flow chart of a dry processing method of paint mist according to the present invention is shown, wherein the dry processing method comprises the following steps:
s1: firstly, a paint mist dry-type processing device is built, and the building process is as follows:
the centrifugal separation module 2 and the paint spraying cabinet 1 are placed in a closed and hollow box body 9, the outlet end of the centrifugal separation module 2 is communicated with the inlet end of a paint mist filtering module 3 located outside the box body 9 through a connecting air pipe 8, and an exhaust fan 7 is arranged at the top of the paint mist filtering module 3. The paint mist discharged from the paint spraying cabinet 1 is discharged after being sequentially treated by the centrifugal separation module 2 and the paint mist filtering module 3 under the action of the exhaust fan. That is to say, the coating cloud that discharges from the cabinet 1 that sprays paint is in the in-process that gets into centrifugal separation module 2 and the processing of coating cloud filter module 3, and the device is everywhere all guaranteed to be sealed, prevents that the coating cloud from revealing from processing apparatus, causes the pollution.
As shown in fig. 6, the centrifugal separation module 2 is a centrifugal separation system composed of a central hollow pipe and a peripheral spirally-enlarged annular space, the outside of the spiral blade is totally sealed, only an air inlet is reserved at the bottom, the top is an air cavity with a sealed shell, the air cavity is communicated with the top of an air pipe at the center of the spiral, and paint mist sucked from the bottom is sent to the central air pipe. Specifically, the centrifugal separation module 2 includes a first housing 21, a spiral blade 22, and an exhaust duct 23, and the first housing 21 is a hollow cylindrical structure with a closed top and an open bottom. An exhaust pipeline 23 is coaxially arranged inside the first shell 21, and a certain interval is formed between the top of the exhaust pipeline 23 and the top of the first shell 21. The spiral blade 22 is axially sleeved outside the exhaust pipeline 23, the outer diameter of the spiral blade 22 is the same as the inner diameter of the first housing 21, and the inner diameter of the spiral blade 22 is the same as the outer diameter of the exhaust pipeline 23, that is, the spiral blade 22 divides an annular area between the exhaust pipeline 23 and the first housing 21 into upward spiral flow passages.
As shown in fig. 7, the paint mist filter module 3 includes a second housing 31 and a dust removing device 32. The second housing 31 is a closed hollow structure, and a through mounting hole is formed in the bottom of the side wall of the second housing 31. The mounting hole is provided with a connecting air pipe 8 which is used for being communicated with the outlet end of the centrifugal separation module 2. A baffle 33 is arranged at the upper end of the inside of the second shell 31, and the hollow inside of the second shell 31 is completely closed by the baffle 33. The baffle 33 is provided with a through air passing port, and the dust removing device 32 is fixed at the bottom of the baffle 33 and completely covers the air passing port. The second housing 31 above the baffle 33 is provided with an air outlet 4, and the paint mist entering the paint mist filtering module 3 can only pass through the baffle after being processed by the dust removing device 32 and is discharged from the air outlet 4. That is to say, the paint mist gas enters the paint mist filtering module 3 through the conveying of the connecting air pipe 8, the gas penetrates through the filter element of the dust removing device 32 through negative pressure, particulate matters with the diameter larger than the aperture of the filter element are intercepted in the space of a filtering system, and the clean gas is discharged through the gas outlet 4 under the suction action of the exhaust fan.
The lower parts of the box body 9 and the second shell 31 are both of gradually reduced funnel-shaped structures, and the bottom parts of the box body and the second shell are provided with through holes which are respectively communicated with the first collecting hopper 5 and the second collecting hopper 6 and are respectively used for collecting paint mist water drops and paint mist particles.
S2: the paint mist dry treatment device is started, and the wooden toy is painted in the paint spraying cabinet 1. The spray booth 1 is an area where workers perform spray operation, the top of the bottom of the spray booth is open except one side of an operation station, the two vertical surfaces of the spray booth are sealed, the opposite surface of the station is a retaining wall, a plurality of through holes are formed in the retaining wall and used for discharging paint mist, and meanwhile, a large exhaust through hole is formed in the bottom of the operation station. The paint mist generated during the operation is discharged from the small holes in the retaining wall and the exhaust through holes at the bottom, and enters the inside of the closed and hollow case 9.
S3: the paint mist generated by the paint spray booth 1 leaves the paint spray booth 1 under the action of the exhaust fan 7 and enters the inside of the closed and hollow box body 9 to form a labyrinth area. Part of paint mist particles and water drops in the paint mist can be separated and settled in the labyrinth area due to the action of gravity and mutual collision, and the separated and settled paint mist particles and water drops enter the first collecting hopper 5 after being collected by the funnel-shaped structure at the lower part of the box body 9.
S4: then the paint mist enters the centrifugal separation module 2, moves upwards along the helical blades 22 from bottom to top, and the air speed is reduced through the increase of the gap space of the helical blades 22, so that the paint mist particles and water drops in the paint mist are separated and settled. The separated and settled paint mist particles and water drops slide down along the helical blade 22 under the action of gravity, and are collected by the funnel-shaped structure at the lower part of the box body 9 and then enter the first collecting hopper 5. The dried paint mist moved to the top of the spiral blade 22 enters the paint mist filter module 3 through the connecting air pipe 8 by the suction fan 7.
The paint mist waste gas collected from the paint spraying cabinet 1 passes through the centrifugal separation module 2 to enable the water-based paint mist to realize water-gas separation under the action of the helical blade 22, and the module can effectively intercept the paint mist water drops which are easy to settle and enter a recovery system through a special path to ensure that the paint mist leaving the centrifugal separation module 2 is dry.
S5: after entering the paint mist filtering module 3, the dried paint mist enters the dust removal device 32 under the action of the exhaust fan 7, and the paint mist particles in the paint mist are further separated and intercepted through the interception effect of the filter element in the dust removal device 32. The tail gas treated by the dust removing device 32 is discharged from the gas outlet 4 of the paint mist filtering module 3 through the guiding function of the exhaust fan 7.
The invention provides two paint mist dry-type treatment devices, which have slightly different trend of paint mist due to different structures and are specifically as follows:
in the first dry paint mist treatment apparatus, the bottom end of the exhaust duct 23 serves as the outlet end of the centrifugal separation module 2. That is, one end of the connecting air pipe 8 is communicated with the bottom end of the exhaust pipeline 23, and the other end is communicated with the paint mist filtering module 3. Therefore, the paint mist moving to the top of the spiral blade 22 enters the exhaust duct 23 by the exhaust fan 7, moves from top to bottom by the guiding action of the exhaust duct 23, and then enters the paint mist filtering module 3 through the connecting air pipe 8.
In the second dry paint mist treatment apparatus, both ends of the exhaust duct 23 are closed, and a through hole is formed in the top of the first housing 21 as the outlet end of the centrifugal separation module 2. That is, one end of the connecting air pipe 8 communicates with the through hole at the top of the first housing 21, and the other end communicates with the paint mist filtering module 3. The exhaust line 23 serves only as a support member in this configuration and does not allow gas to flow through the line. Thus, the dry paint mist moved to the top of the spiral blade 22 enters the paint mist filter module 3 through the connecting air pipe 8 by the suction fan 7.
In this embodiment, there are provided various preferable configurations of the dry paint mist processing apparatus, which are specifically as follows: the screw pitch of helical blade 22 is crescent from bottom to top, therefore the space cross-section between every layer of screw also is by the grow to the speed that the coating cloud flows reduces, makes partial coating cloud granule and most water droplet in the coating cloud can subside the separation in spiral wind channel, realizes the dehydration of coating cloud. The top of the first shell 21 is a tapered circular truncated cone structure, so that the paint mist can smoothly enter the connecting air pipe 8.
The dust removing device 32 is a pulse type filter cartridge dust removing device, and a filter element of the pulse type filter cartridge dust removing device is made of a waterproof material. The pulse of the pulse type filter cartridge dust removing device is set to 5 s/time. The number of the dust removing devices 32 may be multiple, in this embodiment, 4, and the dust removing devices 32 are arranged inside the second housing 31 in a staggered manner, so as to increase the dust removing effect. In this embodiment, the pulse type filter cartridge dust removing device adopts a conventional device structure on the market, and is briefly described as follows:
the pulse type filter element dust removal system is provided with an air inlet, a filter element, an air bag, a pulse control instrument, a blowing valve, a blowing pipe, an air outlet and the like. In the operation process, the lower end of the filter element is closed, and the center of the upper end of the filter element is over against the lower opening of the blowing pipe. After the dust-containing gas enters, the speed of the gas flow is reduced, coarse particles are separated from the gas flow and are settled in the dust hopper, fine particles are prevented from being on the surface of the filter element when passing through the filter element along with the gas flow, and clean gas is discharged. When the dust on the surface of the filter element is thick, the pulse control instrument sends an instruction to open the blowing valve, compressed air in the air bag is sprayed out at a high speed through the blowing pipe to enter the filter element and is quickly sprayed out from inside to outside, and the dust on the surface of the filter element is blown down to fall into the dust collecting hopper. The pulse controller adopts time automatic control.
A plurality of supporting legs are uniformly distributed at the bottoms of the box body 9 and the second shell 31, so that the box body 9 and the second shell 31 are stable and horizontal. And an exhaust chamber is arranged on the second shell 31 above the baffle 33, and gas outlets 4 are formed in the top and the side wall of the exhaust chamber and used for discharging clean gas treated by the centrifugal separation module 2 and the paint mist filtering module 3.
The above embodiments are merely preferred embodiments of the present invention, which should not be construed as limiting the invention. Various changes and modifications may be made by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present invention. Therefore, the technical scheme obtained by adopting the mode of equivalent replacement or equivalent transformation is within the protection scope of the invention.
Claims (10)
1. A dry treatment method of paint mist of a paint sprayer is characterized by comprising the following specific steps:
s1: a paint mist dry-type treatment device is built, and the method specifically comprises the following steps:
placing the centrifugal separation module (2) and the paint spraying cabinet (1) together in a closed and hollow box body (9), wherein the outlet end of the centrifugal separation module (2) is communicated with the inlet end of a paint mist filtering module (3) positioned outside the box body (9) through a connecting air pipe (8), and the top of the paint mist filtering module (3) is provided with an exhaust fan (7);
the centrifugal separation module (2) comprises a first shell (21), a helical blade (22) and an exhaust pipeline (23), wherein the first shell (21) is of a hollow cylindrical structure with a closed top and an open bottom; an exhaust pipeline (23) is coaxially arranged in the first shell (21), a gap is formed between the top of the exhaust pipeline (23) and the top of the first shell (21), and a helical blade (22) is axially sleeved outside the exhaust pipeline (23); the outer diameter of the spiral blade (22) is the same as the inner diameter of the first shell (21), and the pitch of the spiral blade is gradually increased from bottom to top;
the paint mist filtering module (3) comprises a second shell (31) and a dust removal device (32); the second shell (31) is of a closed hollow structure, and the bottom of the side wall is provided with a through mounting hole; the mounting hole is provided with a connecting air pipe (8) which is used for being communicated with the outlet end of the centrifugal separation module (2); a baffle (33) is arranged at the upper end of the inside of the second shell (31), and the hollow inside of the second shell (31) at the position is completely sealed by the baffle (33); a through air passing hole is formed in the baffle plate (33), and the dust removal device (32) is fixed at the bottom of the baffle plate (33) and completely covers the air passing hole; a gas outlet (4) is formed in the second shell (31) above the baffle (33);
the lower parts of the box body (9) and the second shell (31) are funnel-shaped structures which are gradually reduced, and the bottoms of the box body and the second shell are provided with through holes which are respectively communicated with the first collecting hopper (5) and the second collecting hopper (6);
s2: starting a paint mist dry-type treatment device, and performing paint spraying operation on the wooden toy in the paint spraying cabinet (1);
s3: paint mist generated by the paint spraying cabinet (1) leaves the paint spraying cabinet (1) under the action of an exhaust fan (7), paint mist particles and water drops in the paint mist are partially separated and settled under the action of gravity, and the separated and settled paint mist particles and water drops enter a first collecting hopper (5) after being collected by a funnel-shaped structure at the lower part of a box body (9);
s4: then the paint mist enters a centrifugal separation module (2), moves upwards along the gap space of the helical blade (22) from bottom to top, and the air flow speed is reduced by gradually increasing the gap space of the helical blade (22), so that paint mist particles and water drops in the paint mist are separated and settled; the separated and settled paint mist particles and water drops slide down along the helical blade (22) under the action of gravity, and are collected by a funnel-shaped structure at the lower part of the box body (9) and then enter the first collecting hopper (5); the dry paint mist moving to the top of the helical blade (22) enters the paint mist filtering module (3) through the connecting air pipe (8) under the action of the exhaust fan (7);
s5: after entering the paint mist filtering module (3), the dried paint mist enters a dust removal device (32) under the action of an exhaust fan (7), and paint mist particles in the paint mist are further separated and intercepted through the interception effect of a filter element in the dust removal device (32); the tail gas treated by the dust removing device (32) is discharged from a gas outlet (4) of the paint mist filtering module (3) through the guiding action of the exhaust fan (7).
2. Dry processing method according to claim 1, characterized in that the bottom end of the exhaust line (23) is the outlet end of a centrifugal separation module (2); one end of the connecting air pipe (8) is communicated with the bottom end of the exhaust pipeline (23), and the other end of the connecting air pipe is communicated with the paint mist filtering module (3); the paint mist moving to the top of the helical blade (22) enters the exhaust pipeline (23) under the action of the exhaust fan (7), moves from top to bottom under the guiding action of the exhaust pipeline (23), and then enters the paint mist filtering module (3) through the connecting air pipe (8).
3. The dry treatment method as claimed in claim 1, wherein the exhaust line (23) is closed at both ends, and the top of the first casing (21) is provided with a through hole as an outlet end of the centrifugal separation module (2); one end of the connecting air pipe (8) is communicated with the through hole at the top of the first shell (21), and the other end of the connecting air pipe is communicated with the paint mist filtering module (3); the dry paint mist moving to the top of the helical blade (22) enters the paint mist filtering module (3) through the connecting air pipe (8) under the action of the exhaust fan (7).
4. The dry treatment method as claimed in claim 1, wherein the helical blade (22) is made of stainless steel.
5. The dry processing method as claimed in claim 1, wherein the top of the first casing (21) is a tapered circular truncated cone structure.
6. The dry treatment method as claimed in claim 1, wherein the dust removal device (32) is a pulse-type cartridge dust removal device.
7. The dry treatment method as claimed in claim 6, wherein the pulse of the pulse type cartridge dust removing device is set to 5 s/time.
8. The dry treatment method as claimed in claim 1, wherein the filter element of the pulse type filter cartridge dust removing device is made of a waterproof material.
9. The dry processing method as claimed in claim 1, wherein the dust removing device (32) is plural and arranged inside the second casing (31) in a staggered manner.
10. The dry treatment method as claimed in claim 1, wherein an exhaust chamber is provided in the second housing (31) above the baffle plate (33), and gas outlets (4) are opened at the top and the side walls of the exhaust chamber for discharging clean gas treated by the centrifugal separation module (2) and the paint mist filter module (3).
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| CN202010886445.XA CN112275065A (en) | 2020-08-28 | 2020-08-28 | Dry treatment method for paint mist of paint spraying |
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| CN202010886445.XA CN112275065A (en) | 2020-08-28 | 2020-08-28 | Dry treatment method for paint mist of paint spraying |
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| CN209771737U (en) * | 2019-09-30 | 2019-12-13 | 成都威隆众诚环保设备有限公司 | Spraying dry-type dust collector |
| CN209809834U (en) * | 2019-04-04 | 2019-12-20 | 潍坊英凯防水材料有限公司 | Organic waste gas treatment equipment for waterproof coiled material production |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2784761Y (en) * | 2005-05-06 | 2006-05-31 | 贾晨光 | Chimney capable of removing moisture and dust in smoke |
| KR20100030075A (en) * | 2008-09-09 | 2010-03-18 | 주식회사 동원이엔지 | Washer type air conditioner device |
| CN102072511A (en) * | 2010-12-15 | 2011-05-25 | 成都盛尔嘉科技有限公司 | Oil-fume separator |
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Application publication date: 20210129 |
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