CN105289905A - Paint spraying air treatment system and method - Google Patents
Paint spraying air treatment system and method Download PDFInfo
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- CN105289905A CN105289905A CN201510780540.0A CN201510780540A CN105289905A CN 105289905 A CN105289905 A CN 105289905A CN 201510780540 A CN201510780540 A CN 201510780540A CN 105289905 A CN105289905 A CN 105289905A
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- air
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- spray booth
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- 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
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B16/00—Spray booths
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a paint spraying air treatment system and method. The system comprises a paint spraying room, an air inlet treatment device and an exhaust treatment device. The air inlet treatment device, the paint spraying room and the exhaust treatment device are connected in series. The exhaust treatment device comprises an oil paint mist removing device, a first runner dehumidification device, a first air cooler and a VOCs runner. An inlet of the oil paint mist removing device is communicated with an exhaust channel of the paint spraying room. After being treated through the oil paint mist removing device, the first runner dehumidification device, the first air cooler and the VOCs runner, the air exhausted from the paint spraying room is separated into clean air and high-concentration VOCs mixed gas. The clean air is returned to the air inlet treatment device from one outlet of the VOCs runner through a returning channel. Due to the fact that the VOCs runner is utilized for separating the VOCs in exhaust in the paint spraying chamber and the clean air treated through the VOCs runner serves as a new air source to be returned to the paint spraying chamber, the treatment amount of fresh air is greatly reduced in the paint spraying process, and the energy is greatly saved.
Description
Technical field
The present invention relates to air-treatment field, more specifically, relate to one and to spray paint air treatment system and method.
Background technology
Spraying paint comparatively common in the industrial production, is also requisite link in automobile making as sprayed paint.In order to ensure the stability of painting quality, painting process needs to carry out under the environmental condition of temperature and humid control.In painting process, the paint spray of about 50% is shone and is being needed to carry out on the workpiece of application process, remaining paint then floating row is floating in an atmosphere, by the workpiece sprayed paint, a large amount of air can must be extracted discharged to outdoor from paint spray booth in order to ensure paint spray booth production safety and prevent floating paint in an atmosphere from falling.Thus, must extract from environment after a large amount of fresh airs carries out temperature and humidity process and deliver to paint spray booth.In addition, containing volatile organic matter (volatileorganiccompounds is called for short VOCs) in paint, paint mists a large amount of in painting process and the VOCs in painting can be dispersed in air with exhaust the environment that depollutes, therefore, after spraying paint, waste gas still needs to process.
At present, most painting process all comprises two air-treatment programs: the first, extracts fresh air and deliver to painting workshop, second after being processed to the temperature of regulation and humidity from air, the air discharged from painting workshop is carried out oil removing coating cloud, except after VOCs process again discharged to air.
Because coating process capacity is large, so painting process air-treatment energy resource consumption is very large.Related statistical data show, at automobile manufacturing field, the electric power that only painting process air temperature and humid control consume just account for that automobile making total electricity consumes 40%, thus, develop the new air handling scheme that sprays paint and be of great significance realizing painting process energy-saving and emission-reduction.
Summary of the invention
Given this, the present invention proposes one and to spray paint air treatment system and method, to solve the energy-saving and emission-reduction problem in painting process.
On the one hand, the air treatment system that sprays paint that the present invention proposes, comprise paint spray booth, air inlet treating apparatus and exhaust gas treatment device, described air inlet treating apparatus, paint spray booth and exhaust gas treatment device are connected in series, described exhaust gas treatment device comprises oil removing coating cloud device, first rotary dehumidifier, first aerial cooler and VOCs runner, the import of described oil removing coating cloud device is communicated with the exhaust passage of described paint spray booth, the air of discharging from described paint spray booth is through described oil removing coating cloud device, first rotary dehumidifier, after first aerial cooler and the process of VOCs runner, be separated into pure air and high concentration VOCs gaseous mixture, pure air is recycled to described air inlet treating apparatus from an outlet of described VOCs runner through backward channel.
Further, described air inlet treating apparatus comprises the second aerial cooler and the second rotary dehumidifier that connect successively, described second aerial cooler is provided with air intlet, the import of the second rotary dehumidifier described in the outlet of described second aerial cooler, described paint spray booth is led in the outlet of described second rotary dehumidifier.
Further, described air inlet treating apparatus also comprises the 3rd aerial cooler be connected between the second rotary dehumidifier and paint spray booth, the outlet of inlet communication second rotary dehumidifier of described 3rd aerial cooler, described paint spray booth is led in the outlet of described 3rd aerial cooler, the outlet of described backward channel and the inlet communication of described 3rd aerial cooler.
According to the air treatment system that sprays paint of the present invention, comprise paint spray booth, air inlet treating apparatus and exhaust gas treatment device, air inlet treating apparatus, paint spray booth and exhaust gas treatment device are connected in series, exhaust gas treatment device comprises oil removing coating cloud device, first rotary dehumidifier, first aerial cooler and VOCs runner, the import of oil removing coating cloud device is communicated with the exhaust passage of paint spray booth, the air of discharging from paint spray booth is successively through oil removing coating cloud device, first rotary dehumidifier, after first aerial cooler and the process of VOCs runner, be separated into pure air and high concentration VOCs gaseous mixture, pure air is recycled to air inlet treating apparatus from an outlet of VOCs runner through backward channel.Due to take VOCs runner be separated paint spray booth exhaust in VOCs, thus make the VOCs mist of discharging from paint spray booth become pure air and high concentration VOCs gaseous mixture, and the pure air after the process of VOCs runner is recycled to paint spray booth as new air-source, thus painting process fresh air treating capacity is significantly reduced, thus significantly save the energy.
In further technical scheme, air inlet treating apparatus comprises the second aerial cooler and the second rotary dehumidifier that connect successively, respectively temperature and humidity process is carried out to air by the second aerial cooler and the second rotary dehumidifier, namely the second aerial cooler is only responsible for cooling function, therefore temperature controls the chilled water can taking about 17 DEG C, the energy that the energy needed owing to obtaining about 17 DEG C chilled waters needs well below acquisition 7 DEG C of chilled waters, so temperature is controlled cost and is significantly declined.Simultaneously, dehumidifying is born primarily of the second rotary dehumidifier, the consumption of rotary wheel dehumidifying main energy sources is the hot-air needed for regenerative adsorption runner, and the thermal source of thermal regeneration air can be the waste heat of municipal hot water or process of refrigerastion generation or obtain from industrial discharge waste heat, thus, the cost that dehumidifies is low.
On the other hand, the air-treatment method that sprays paint that the present invention proposes, comprises the steps:
S1: extracting air carries out temperature and humidity process from air, and air after process is delivered to paint spray booth;
S2: carry out VOCs separating treatment after the air of discharging from paint spray booth being carried out oil removing paint mist treatment, dehumidification treatments and cooling process, obtain pure air and high concentration VOCs gaseous mixture;
S3: the pure air of acquisition is recycled to paint spray booth.
Further, in step sl, utilize aerial cooler to carry out Temperature Treatment to air, utilize rotary dehumidifier to enter humidity process to air; And/or,
In step s3, before being recycled to paint spray booth, temperature and/or humidity process are carried out to pure air.
Again on the one hand, the invention allows for and a kind ofly utilize the aforementioned air treatment system that sprays paint to carry out spraying paint the method for air-treatment, comprise the steps:
S1: utilize air inlet treating apparatus extracting air from air to carry out temperature and humidity process, and air after process is delivered to paint spray booth;
S2: utilized by the air of discharging from paint spray booth oil removing coating cloud device to carry out oil removing paint mist treatment, the first rotary dehumidifier is utilized to carry out dehumidification treatments, the first aerial cooler is utilized to carry out cooling process, and the air after process is delivered to VOCs runner and carries out VOCs separating treatment, obtain pure air and high concentration VOCs gaseous mixture;
S3: the pure air of acquisition is recycled to air inlet treating apparatus by backward channel.
Further, in step sl, utilize aerial cooler to carry out Temperature Treatment to air, utilize rotary dehumidifier to enter humidity process to air.
Further, in step s3, before being recycled to paint spray booth, temperature and/or humidity process are carried out to pure air.
According to the air-treatment method that sprays paint of the present invention, first, from air, extracting air carries out temperature and humidity process, and air after process is delivered to paint spray booth; Then, the air of discharging from paint spray booth is carried out oil removing paint mist treatment, dehumidification treatments and cooling process, and the air after process is carried out VOCs separating treatment, obtain pure air and high concentration VOCs gaseous mixture; Finally, the pure air of acquisition is recycled to paint spray booth.Because the VOCs in being vented paint spray booth is separated, and the pure air after VOCs separating treatment is recycled to paint spray booth as new air-source, thus painting process fresh air treating capacity is significantly reduced, thus significantly saves the energy.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the first air treatment system that sprays paint of the present invention;
In accompanying drawing:
10 paint spray booths; 20 air inlet treating apparatus; 21 second aerial coolers; 22 second rotary dehumidifiers; 23 the 3rd aerial coolers; 30 exhaust gas treatment devices; 31 oil removing coating cloud devices; 32VOCs runner; 33 first rotary dehumidifiers; 34 first aerial coolers; 321 treatment regions; 322 cooling zones; 323 renewing zones; 324 regenerative heaters; 325 regeneration blower fans; 40 backward channels.
Detailed description of the invention
In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
It should be noted that, in this article, " first ", " second ", " the 3rd ", can not as the restrictions of parts itself only for distinguishing different parts.
See Fig. 1, on the one hand, present embodiment illustrates one to spray paint air treatment system, comprise paint spray booth 10, air inlet treating apparatus 20 and exhaust gas treatment device 30, air inlet treating apparatus 20, paint spray booth 10 and exhaust gas treatment device 30 are connected in series, paint spray booth 10 is for carrying out spray painting operation, air inlet treating apparatus 20 is for carrying out temperature and humidity process to the air entering paint spray booth 10, make to reach the requirement of spraying paint, exhaust gas treatment device 30 is for carrying out oil removing coating cloud to the waste gas (VOCs gaseous mixture) after spraying paint, dehumidifying, cooling and VOCs separating treatment, particularly, exhaust gas treatment device 30 comprises oil removing coating cloud device 31, first rotary dehumidifier 33, first aerial cooler 34 and VOCs runner 32, the effect of oil removing coating cloud device 31 is to utilize and filters, the various method such as washing removes the paint mist in lacquer spraying waste gas, as rotary oil mist removing device, specifically can see prior art, the function of the first rotary dehumidifier 33 is the moisture that the mode of adsorption and dehumidification removes in air, and the runner for dehumidifying preferably adopts absorbent material to make, thus forms adsorption runner dehydrating unit, the effect of the first aerial cooler 34 is the waste gas (VOCs gaseous mixture) after cooling spray paint, as by chilled water, the effect of VOCs runner 32 is that the waste gas of discharging from paint spray booth 10 is separated into two parts, a part is pure air, a part is containing high concentration VOCs air Mixture in addition, the import of oil removing coating cloud device 31 is communicated with the exhaust passage of paint spray booth 10, aforesaid connection can be directly to be communicated with or by other device indirect communication, the air of discharging from paint spray booth 10 is through oil removing coating cloud device 31, first rotary dehumidifier 33, after first aerial cooler 34 and VOCs runner 32 process, be separated into pure air and high concentration VOCs gaseous mixture, pure air is recycled to air inlet treating apparatus 20 from an outlet of VOCs runner 32 through backward channel 40, particularly, VOCs runner 32 comprises the first outlet and the second outlet, be separated through VOCs runner 32 pure air obtained and be recycled to air inlet treating apparatus 20 through backward channel 40 after the first outlet is discharged, the high concentration VOCs gaseous mixture that contains of a part is discharged from the second outlet in addition.
The air treatment system that sprays paint of the present embodiment, due to take VOCs runner 32 be separated paint spray booth exhaust in VOCs, thus make the VOCs mist of discharging from paint spray booth become pure air and high concentration VOCs gaseous mixture, and the pure air after the process of VOCs runner is recycled to paint spray booth as new air-source, thus painting process fresh air treating capacity is significantly reduced, thus significantly save the energy, in the specific implementation, 90% air after purified treatment can be sent back to paint spray booth 10, and the fresh air adding to paint spray booth only has about 10% of aggregate demand, fresh air treating capacity is low.Meanwhile, also make the air polluted reduce, high concentration VOCs gaseous mixture is also convenient to recycle or unified process.
Simultaneously, owing to being provided with the first rotary dehumidifier 33 and the first aerial cooler 34, temperature and humidity process can be carried out respectively to exhaust, i.e. the first aerial cooler 34 responsible cooling functions, the temperature of chilled water can be higher than the temperature of existing chilled water, therefore, the energy manufactured required for chilled water consumes low than prior art, realizes energy-saving effect further.Simultaneously, dehumidifying is born primarily of the first rotary dehumidifier 33, the consumption of rotary wheel dehumidifying main energy sources is the hot-air needed for regenerative adsorption runner, and the thermal source of thermal regeneration air can be the waste heat of municipal hot water or process of refrigerastion generation or obtain from industrial discharge waste heat, thus, the cost that dehumidifies is low.
In above-described embodiment, air inlet treating apparatus 20 can adopt existing treating apparatus, preferably, air inlet treating apparatus 20 comprises the second aerial cooler 21 and the second rotary dehumidifier 22 connected successively, second aerial cooler 21 is provided with air intlet, the import of outlet second rotary dehumidifier 22 of the second aerial cooler 21, paint spray booth 10 is led in the outlet of the second rotary dehumidifier 22.The effect of the second aerial cooler 21 is cool fresh air, as by chilled water, the function of the second rotary dehumidifier 22 is the moisture that the mode of adsorption and dehumidification removes in air, and the runner for dehumidifying preferably adopts absorbent material to make, thus forms adsorption runner dehydrating unit.In the present embodiment, respectively temperature and humidity process is carried out to air by the second aerial cooler 21 and the second rotary dehumidifier 22, i.e. the second rotary dehumidifier 21 responsible cooling functions, the temperature of chilled water can be higher than the temperature of existing chilled water, therefore, the energy obtained required for chilled water consumes low than prior art, test shows, temperature controls the chilled water can taking about 17C, the energy that the energy needed owing to obtaining about 17C chilled water needs well below acquisition 7C chilled water, so, temperature is controlled cost and is significantly declined, realize energy-saving effect further.Simultaneously, dehumidifying is born primarily of the second rotary dehumidifier 22, the consumption of rotary wheel dehumidifying main energy sources is the hot-air needed for regenerative adsorption runner, and the thermal source of thermal regeneration air can be the waste heat of municipal hot water or process of refrigerastion generation or obtain from industrial discharge waste heat, thus, the cost that dehumidifies is low.
In above-described embodiment, air inlet treating apparatus 20 can also comprise the 3rd aerial cooler 23 be connected between the second rotary dehumidifier 22 and paint spray booth 10, the outlet of inlet communication second rotary dehumidifier 22 of the 3rd aerial cooler 23, paint spray booth 10 is led in the outlet of the 3rd aerial cooler 23, the outlet of backward channel 40 and the inlet communication of the 3rd aerial cooler 23.Owing to being provided with the 3rd aerial cooler 23, can control the temperature of the fresh air entered more easily, also be convenient to the control of the temperature to the pure air from VOCs runner 32 loopback.
As long as VOCs runner 32 can realize the separation of VOCs in waste gas in such scheme, particularly, VOCs runner 32 comprises treatment region 321, cooling zone 322 and renewing zone 323, the outlet of the first aerial cooler 34 is communicated with the import for the treatment of region 321 and cooling zone 322 simultaneously, first outlet is the outlet for the treatment of region 321, regenerative heater 324 is connected with between the outlet of cooling zone 322 and the import of renewing zone 323, the outlet of renewing zone 323 is connected with the outlet that the outlet of regeneration blower fan 325, second is regeneration blower fan 325.Pass through aforementioned structure, VOCs gaseous mixture is by becoming clean air after treatment region 321, the promotion of part VOCs gaseous mixture regeneration blower fan is reproduced heater 324 after flowing through from cooling zone and is heated to certain temperature, then the renewing zone of VOCs runner 32 is flow through, because VOCs runner 32 renewing zone is reproduced air heat, the VOCs being adsorbed in this region by desorption out for regeneration air is taken away.
On the other hand, shown in figure 1, the air-treatment method that sprays paint of the present embodiment, is characterized in that, draw together following steps:
S1: extracting air carries out temperature and humidity process from air, and air after process is delivered to paint spray booth 10;
S2: carry out VOCs separating treatment after the air of discharging from paint spray booth 10 being carried out oil removing paint mist treatment, dehumidification treatments and cooling process, obtain pure air and high concentration VOCs gaseous mixture;
S3: the pure air of acquisition is recycled to paint spray booth 10.
In the present embodiment, because the VOCs in being vented paint spray booth 10 is separated, and the pure air after VOCs separating treatment is recycled to paint spray booth 10 as new air-source, thus painting process fresh air treating capacity is significantly reduced, thus significantly save the energy.
In above-mentioned flow process, preferably, in step sl, utilize aerial cooler to carry out Temperature Treatment to air, utilize rotary dehumidifier to enter humidity process to air; And/or,
In step s3, before being recycled to paint spray booth 10, temperature and/or humidity process are carried out to pure air.
Such scheme is by carrying out temperature and humidity process to air respectively, and the temperature of chilled water can be higher than the temperature of existing chilled water, and therefore, the energy manufactured required for chilled water consumes low than prior art, realizes energy-saving effect further.Meanwhile, dehumidifying can be born by rotary dehumidifier, and the consumption of rotary wheel dehumidifying main energy sources is the hot-air needed for regenerative adsorption runner.The thermal source of thermal regeneration air can be the waste heat of municipal hot water or process of refrigerastion generation or obtain from industrial discharge waste heat, and thus, dehumidifying cost is low.Meanwhile, before carrying out VOCs separating treatment, temperature and humidity process is carried out to the air after oil removing paint mist treatment, be conducive to the separation realizing VOCs, the cost of cooling and dehumidifying also can be made low.Before being recycled to paint spray booth 10, temperature and/or humidity process being carried out to pure air, is convenient to the control of the temperature of the pure air to loopback.
Again on the one hand, this aspect proposes a kind ofly to utilize the aforementioned air treatment system that sprays paint to carry out spraying paint the method for air-treatment, comprises the steps:
S1: utilize air inlet treating apparatus 20 extracting air from air to carry out temperature and humidity process, and air after process is delivered to paint spray booth 10;
S2: utilized by the air of discharging from paint spray booth 10 oil removing coating cloud device 31 to carry out oil removing paint mist treatment, the first rotary dehumidifier 33 is utilized to carry out dehumidification treatments, the first aerial cooler 34 is utilized to carry out cooling process, and the air after process is delivered to VOCs runner 32 and carries out VOCs separating treatment, obtain pure air and high concentration VOCs gaseous mixture;
S3: the pure air of acquisition is recycled to air inlet treating apparatus 20 by backward channel 40.
In the present embodiment, VOCs in being vented paint spray booth 10 owing to utilizing VOCs runner 32 is separated, and the pure air after VOCs separating treatment is recycled to paint spray booth 10 as new air-source, thus painting process fresh air treating capacity is significantly reduced, thus significantly save the energy.
Preferably, in step sl, utilize aerial cooler to carry out Temperature Treatment to air, utilize rotary dehumidifier to enter humidity process to air.
Preferably, in step s3, before being recycled to paint spray booth 10, temperature and/or humidity process are carried out to pure air.
Such scheme is by carrying out temperature and humidity process to air respectively, and the temperature of chilled water can be higher than the temperature of existing chilled water, and therefore, the energy manufactured required for chilled water consumes low than prior art, realizes energy-saving effect further.Meanwhile, dehumidifying can be born by rotary dehumidifier, and the consumption of rotary wheel dehumidifying main energy sources is the hot-air needed for regenerative adsorption runner.The thermal source of thermal regeneration air can be the waste heat of municipal hot water or process of refrigerastion generation or obtain from industrial discharge waste heat, and thus, dehumidifying cost is low.Meanwhile, before carrying out VOCs separating treatment, temperature and/or humidity process are carried out to the air after oil removing paint mist treatment, is conducive to the separation realizing VOCs, the cost of cooling and dehumidifying also can be made low.Before being recycled to paint spray booth 10, temperature and/or humidity process being carried out to pure air, is convenient to the control of the temperature of the pure air to loopback.
For further illustrating the present invention, be below described by an embody rule case.Suppose in a spray painting operation, the air themperature sending into paint spray booth 10 requires: 23 ± 1 DEG C; The air humidity sending into paint spray booth 10 requires: 70 ± 5%; VOCs content requirement: 120mg/m3 in air when leaving paint spray booth; VOCs content requirement :≤20mg/m3 in waste gas after molecular sieve runner is concentrated.Through the air treatment system that sprays paint of the present embodiment, composition graphs 1, the data of each link are as follows:
Can find from upper table, spray paint in air handling scheme whole, air requirements amount is few, and energy resource consumption is few.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. the air treatment system that sprays paint, comprise paint spray booth (10), air inlet treating apparatus (20) and exhaust gas treatment device (30), described air inlet treating apparatus (20), paint spray booth (10) and exhaust gas treatment device (30) are connected in series, it is characterized in that, described exhaust gas treatment device (30) comprises oil removing coating cloud device (31), first rotary dehumidifier (33), first aerial cooler (34) and VOCs runner (32), the import of described oil removing coating cloud device (31) is communicated with the exhaust passage of described paint spray booth (10), the air of discharging from described paint spray booth (10) is through described oil removing coating cloud device (31), first rotary dehumidifier (33), after first aerial cooler (34) and VOCs runner (32) process, be separated into pure air and high concentration VOCs gaseous mixture, pure air is recycled to described air inlet treating apparatus (20) from an outlet of described VOCs runner (32) through backward channel (40).
2. the air treatment system that sprays paint according to claim 1, it is characterized in that, described air inlet treating apparatus (20) comprises the second aerial cooler (21) and the second rotary dehumidifier (22) that connect successively, described second aerial cooler (21) is provided with air intlet, the import of the second rotary dehumidifier (22) described in the outlet of described second aerial cooler (21), described paint spray booth (10) is led in the outlet of described second rotary dehumidifier (22).
3. the air treatment system that sprays paint according to claim 2, it is characterized in that, described air inlet treating apparatus (20) also comprises the 3rd aerial cooler (23) be connected between the second rotary dehumidifier (22) and paint spray booth (10), the outlet of inlet communication second rotary dehumidifier (22) of described 3rd aerial cooler (23), described paint spray booth (10) is led in the outlet of described 3rd aerial cooler (23), the outlet of described backward channel (40) and the inlet communication of described 3rd aerial cooler (23).
4. spray paint an air-treatment method, it is characterized in that, comprise the steps:
S1: extracting air carries out temperature and humidity process from air, and air after process is delivered to paint spray booth (10);
S2: carry out VOCs separating treatment after the air of discharging from paint spray booth (10) being carried out oil removing paint mist treatment, dehumidification treatments and cooling process, obtain pure air and high concentration VOCs gaseous mixture;
S3: the pure air of acquisition is recycled to paint spray booth (10).
5. the air-treatment method that sprays paint according to claim 4, is characterized in that, in step sl, utilizes aerial cooler to carry out Temperature Treatment to air, utilizes rotary dehumidifier to enter humidity process to air; And/or,
In step s3, being recycled to, paint spray booth (10) is front, carries out temperature and/or humidity process to pure air.
6. utilize the air treatment system that sprays paint described in claim 1 to carry out spraying paint the method for air-treatment, it is characterized in that, comprise the steps:
S1: utilize air inlet treating apparatus (20) extracting air from air to carry out temperature and humidity process, and air after process is delivered to paint spray booth (10);
S2: utilize oil removing coating cloud device (31) to carry out oil removing paint mist treatment the air of discharging from paint spray booth (10), the first rotary dehumidifier (33) is utilized to carry out dehumidification treatments, the first aerial cooler (34) is utilized to carry out cooling process, and the air after process is delivered to VOCs runner (32) and carries out VOCs separating treatment, obtain pure air and high concentration VOCs gaseous mixture;
S3: the pure air obtained is recycled to air inlet treating apparatus (20) by backward channel (40).
7. the method for air-treatment of spraying paint according to claim 6, is characterized in that, in step sl, utilizes aerial cooler to carry out Temperature Treatment to air, utilizes rotary dehumidifier to enter humidity process to air.
8. the method for the air-treatment of spraying paint according to claim 6 or 7, is characterized in that, in step s3, being recycled to, paint spray booth (10) is front, carries out temperature and/or humidity process to pure air.
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| CN201510780540.0A CN105289905B (en) | 2015-11-13 | 2015-11-13 | A kind of spray painting air treatment system and method |
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| CN105289905B (en) | 2018-05-18 |
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