CN108607750B - Paint spraying air treatment system and treatment method thereof - Google Patents
Paint spraying air treatment system and treatment method thereof Download PDFInfo
- Publication number
- CN108607750B CN108607750B CN201611166152.4A CN201611166152A CN108607750B CN 108607750 B CN108607750 B CN 108607750B CN 201611166152 A CN201611166152 A CN 201611166152A CN 108607750 B CN108607750 B CN 108607750B
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- paint
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- air
- paint spraying
- circulating air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
- B05D3/0272—After-treatment with ovens
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/14—Gaseous waste or fumes
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a paint spraying air treatment system and a treatment method thereof, wherein the paint spraying air treatment system comprises a first circulating air box, a second circulating air box and a third circulating air box, wherein one end of the first circulating air box, one end of the second circulating air box and one end of the third circulating air box are respectively connected with a primer, a finish paint, a varnish spraying and leveling chamber, the other end of the second circulating air box and the other end of the third circulating air box are respectively connected with a concentrating rotating wheel, and the concentrating rotating wheel is also respectively connected with a first system groove, a second system groove, a third system groove, a paint storage room, a paint mixing room, a slag scraping machine room and a clean room through a first air outlet pipeline, a second air outlet pipeline, a third air outlet pipeline, a fourth air outlet pipeline, a fifth air outlet pipeline and a sixth air outlet pipeline; fresh air treated by the concentrating runner is respectively connected with a clean room, a slag scraping machine room, a primer paint spray room, a finish paint spray room and a varnish spray room through a first air inlet pipeline, a second air inlet pipeline, a third air inlet pipeline and a fourth air inlet pipeline; the concentration rotating wheel and the drying furnace are connected with the combustion chamber through a seventh air outlet pipeline; the treatment system and the treatment method of the invention are energy-saving and environment-friendly for treating the waste gas of the paint workshop.
Description
Technical Field
The invention relates to the field of air treatment, in particular to a paint spraying air treatment system and a paint spraying air treatment method.
Background
Paint spraying is common in industrial production, for example, a paint spray booth is an essential link in automobile manufacturing. In order to ensure the stability of the quality of the paint, the environment of the paint needs to have proper temperature and humidity. About 50% of the paint is sprayed on the work to be coated during the painting process, while the remaining paint floats in the atmosphere, and a large amount of air must be drawn from the paint booth to be discharged outside in order to secure the production of the paint booth and prevent the paint floating in the atmosphere from falling on the work to be painted. Therefore, a large amount of fresh air must be extracted from the environment for temperature and humidity treatment and sent to the spray booth. In addition, the paint contains volatile organic compounds (volatile organic compounds, abbreviated as VOCs), and a large amount of paint mist and VOCs in the paint can be emitted to the atmosphere along with the exhaust gas in the paint spraying process to decontaminate the environment, so that the exhaust gas still needs to be treated after the paint is sprayed.
The device for generating waste gas comprises a leveling chamber, a system groove, a slag scraping machine room, a paint storage chamber, a paint mixing chamber, a drying furnace and the like which are connected with each paint spraying chamber besides paint spraying chambers (primer, finish paint and varnish). The existing paint spraying air treatment system mainly carries out RTO or TNV combustion treatment on each paint spraying room, each leveling room and each drying furnace, and exhaust gas generated in other rooms is directly discharged to the atmosphere, so that serious threat is caused to the environment and personal health. In addition, the existing paint spraying air treatment system has large waste gas treatment capacity and high power consumption, and causes a certain economic burden for enterprises.
Disclosure of Invention
In order to solve the problems of incomplete waste gas treatment after paint spraying and high power consumption in the treatment process in the prior art, the invention aims to provide a paint spraying air treatment system; to this end, the invention also provides a method for treating paint spraying air.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
in a first aspect of the present invention, there is provided a paint air treatment system comprising a first circulation bellows, a second circulation bellows and a third circulation bellows,
the first circulation air box, the second circulation air box and the third circulation air box respectively carry out first-stage concentration on waste gas in a primer paint spraying and leveling chamber, a finish paint spraying and leveling chamber and a varnish paint spraying and leveling chamber by controlling circulation air quantity;
one end of the first circulating air box, one end of the second circulating air box and one end of the third circulating air box are respectively connected with a primer paint spraying and leveling chamber, a finishing paint spraying and leveling chamber, a varnish paint spraying and leveling chamber, the other ends of the first circulating air box, the second circulating air box and the third circulating air box are respectively connected with a concentration rotating wheel, the concentration rotating wheel is also connected with a first system groove through a first air outlet pipeline, is connected with a second system groove through a second air outlet pipeline, is connected with a third system groove through a third air outlet pipeline, is connected with a paint storage room and a paint mixing room through a fourth air outlet pipeline, is connected with a slag scraping machine room through a fifth air outlet pipeline, is connected with a clean room through a sixth air outlet pipeline, and respectively carries out second-stage concentration on waste gas;
fresh air treated by the concentrating rotating wheel is connected with a clean room and a slag scraping machine room through a first air inlet pipeline, is connected with a primer paint spraying and leveling chamber through a second air inlet pipeline, is connected with a finish paint spraying and leveling chamber through a third air inlet pipeline, and is connected with a varnish paint spraying and leveling chamber through a fourth air inlet pipeline;
the concentration rotating wheel and the drying furnace are connected with the combustion chamber through a seventh air outlet pipeline.
Preferably, the concentrating rotor is connected to a preheating member for preheating the exhaust gas entering the concentrating rotor.
Preferably, the preheating part is an electric heater or a gas heater.
Preferably, the concentrating rotor is further connected to a heat exchanger for heating the concentrating rotor desorption process.
More preferably, the paint spraying air treatment system further comprises a first air conditioner, a second air conditioner and a humidifier, wherein the first air conditioner is used for providing fresh air for a clean room and a slag scraping room, the second air conditioner is used for providing fresh air for a paint storage room and a paint mixing room, and the humidifier is used for adjusting humidity of fresh air entering the first air inlet pipeline, the second air inlet pipeline, the third air inlet pipeline and the fourth air inlet pipeline.
Preferably, a first temperature control device is arranged in the second air inlet pipeline and is used for adjusting the temperature of fresh air entering the primer paint spraying and leveling chamber; a second temperature control device is arranged in the third air inlet pipeline and is used for adjusting the temperature of fresh air entering the paint spraying and leveling chamber; and a third temperature control device is arranged in the fourth air inlet pipeline and is used for adjusting the temperature of fresh air entering the varnish spraying and leveling chamber.
Preferably, the first temperature control device, the second temperature control device and the third temperature control device are air conditioners.
In a second aspect of the present invention, there is provided a method for treating exhaust gas using the above-described paint air treatment system, comprising the steps of:
s1, enabling waste gas discharged from a primer paint spraying and leveling chamber, a finish paint spraying and leveling chamber and a varnish paint spraying and leveling chamber to enter a first circulating air box, a second circulating air box and a third circulating air box respectively, and concentrating the waste gas for the first stage;
s2, enabling waste gas discharged from the first circulating air box, the second circulating air box, the third circulating air box, the first system groove, the second system groove, the third system groove, the paint storage room, the paint mixing room, the slag scraping machine room and the clean room to enter a concentration rotating wheel for second-stage concentration of the waste gas;
s3, fresh air treated by the concentrating rotating wheel is respectively sent into a clean room, a slag scraping machine room, a primer paint spraying and leveling room, a finish paint spraying and leveling room and a varnish paint spraying and leveling room;
s4, enabling waste gas discharged by the concentration rotating wheel and the drying furnace to enter a combustion chamber for combustion treatment.
Wherein the combustion chamber is an RTO or TNV combustion chamber.
Preferably, the step of preheating the waste gas discharged from the first circulating bellows, the second circulating bellows, the third circulating bellows, the first system groove, the second system groove, the third system groove, the paint storage room, the paint mixing room, the slag scraping machine room and the clean room by the preheating component is included before the step S2.
Preferably, the method further comprises the step of adjusting humidity of fresh air entering the primer paint spraying and leveling chamber, the finishing paint spraying and leveling chamber and the varnish paint spraying and leveling chamber through a humidifier before the step S3.
Compared with the prior art, the invention has the beneficial effects that: the paint spraying air treatment system and the paint spraying air treatment method of the invention collect all the waste gas of the paint workshop in a concentrated way, ensure the quality of air in the paint workshop, ensure that the discharged air reaches the safe discharge standard and can not cause damage to the environment and personal health. According to the paint spraying air treatment system and the paint spraying air treatment method, the exhaust gas generated in a paint workshop is subjected to secondary concentration, and the exhaust gas with large air quantity and low concentration is converted into the exhaust gas with higher concentration, so that the pressure and the treatment cost of the exhaust gas treated by the combustion chamber are reduced; the waste gas after the second-stage concentration enters an RTO or TNV combustion chamber, can be spontaneously combusted at the temperature of 820 ℃ in the combustion chamber, does not need to introduce natural gas for supporting combustion, and saves the consumption of the natural gas.
Drawings
The invention is described in further detail below with reference to the attached drawings and detailed description:
fig. 1 is a schematic view of the construction of the paint air treatment system of the present invention.
Wherein: the first circulation bellows 1, the second circulation bellows 2, the third circulation bellows 3, the primer painting and leveling chamber 4, the finish painting and leveling chamber 5, the varnish painting and leveling chamber 6, the concentration wheel 7, the first air outlet line 8, the first system tank 9, the second air outlet line 10, the second system tank 11, the third air outlet line 12, the third system tank 13, the fourth air outlet line 14, the paint storage room 15, the paint mixing room 16, the fifth air outlet line 17, the slag scraping machine room 18, the sixth air outlet line 19, the clean room 20, the first air inlet line 21, the second air inlet line 22, the third air inlet line 23, the fourth air inlet line 24, the drying oven 25, the seventh air outlet line 26, the combustion chamber 27, the preheating part 28, the heat exchanger 29, the first air conditioner 30, the second air conditioner 31, and the humidifier 32.
Detailed Description
As shown in fig. 1, a paint spraying air treatment system comprises a first circulating air box 1, a second circulating air box 2 and a third circulating air box 3, wherein one end of the first circulating air box 1 is connected with a primer paint spraying and leveling chamber 4, the other end of the first circulating air box is connected with a preheating component 28, one end of the second circulating air box 2 is connected with a finish paint spraying and leveling chamber 5, the other end of the second circulating air box is connected with a preheating component 28, one end of the third circulating air box 3 is connected with a varnish paint spraying and leveling chamber 6, the other end of the third circulating air box is connected with the preheating component 28, and the first circulating air box 1, the second circulating air box 2 and the third circulating air box 3 are used for carrying out first-stage concentration on waste gas in the primer paint spraying and leveling chamber 4, the finish paint spraying and leveling chamber 5 and the varnish paint spraying and leveling chamber 6 respectively. The concentration process is as follows: the first circulating air box 1, the second circulating air box 2 and the third circulating air box 3 provide 5% -20% circulating air for the primer paint spraying and leveling chamber 4, the finish paint spraying and leveling chamber 5 and the varnish paint spraying and leveling chamber 6, and the waste gas concentration of the primer paint spraying and leveling chamber 4, the finish paint spraying and leveling chamber 5 and the varnish paint spraying and leveling chamber 6 after circulation is improved.
The preheating component 28 is further connected with the first system groove 9 through the first air outlet pipeline 8, is connected with the second system groove 11 through the second air outlet pipeline 10, is connected with the third system groove 13 through the third air outlet pipeline 12, is connected with the paint storage room 15 and the paint mixing room 16 through the fourth air outlet pipeline 14, is connected with the slag scraping machine room 18 through the fifth air outlet pipeline 17, is connected with the clean room 20 through the sixth air outlet pipeline 19, and the preheating component 28 respectively preheats the waste gas discharged from the first circulating bellows 1, the second circulating bellows 2, the third circulating bellows 3, the first system groove 9, the second system groove 11, the third system groove 13, the paint storage room 15, the paint mixing room 16, the slag scraping machine room 18 and the clean room 20, removes moisture in the waste gas, and avoids damage to the concentration rotating wheel 7 caused by excessive moisture of the waste gas entering the concentration rotating wheel 7, and influences the service life of the concentration rotating wheel 7. The preheating member 28 may be an electric heater. The first system groove, the second system groove and the third system groove are respectively the system groove of a primer paint spray booth, the system groove of a finish paint spray booth and the system groove of a varnish paint spray booth, the preheating component 28 is connected with the concentrating runner 7, the concentrating runner 7 is used for carrying out second-stage concentration on waste gas, the concentrating runner 7 is connected with the heat exchanger 29, the heat exchanger 29 is used for heating process when the concentrating runner 7 is desorbed, fresh air processed by the concentrating runner 7 is connected with the clean room 20 and the residue scraping machine room 18 through the first air inlet pipeline 21, is connected with the primer paint spray and leveling room 4 through the second air inlet pipeline 22, is connected with the finish paint spray and leveling room 5 through the third air inlet pipeline 23, is connected with the varnish paint spray and leveling room 6 through the fourth air inlet pipeline 24, and the concentrating runner 7 and the drying furnace 25 are connected with the combustion chamber 27 through the seventh air outlet pipeline 26.
The paint spraying air treatment system further comprises a first air conditioner 30, a second air conditioner 31 and a humidifier 32, wherein the first air conditioner 30 is used for providing fresh air for the clean room 20 and the slag scraping machine room 18, the second air conditioner 31 is used for providing fresh air for the paint storage room 15 and the paint mixing room 16, and the humidifier 32 is used for adjusting the humidity of the fresh air entering the second air inlet pipeline 22, the third air inlet pipeline 23 and the fourth air inlet pipeline 24, so that the requirements of the primer paint spraying and leveling room 4, the finishing paint spraying and leveling room 5 and the finishing paint spraying and leveling room 6 on the air humidity are met.
A first temperature control device is arranged in the second air inlet pipeline 22 and is used for adjusting the temperature of fresh air entering the primer paint spraying and leveling chamber 4; a second temperature control device is arranged in the third air inlet pipeline 23 and is used for adjusting the temperature of fresh air entering the paint spraying and leveling chamber 5; a third temperature control device is arranged in the fourth air inlet pipeline 24 and is used for adjusting the temperature of fresh air entering the varnish spray and leveling chamber 6.
The first temperature control device, the second temperature control device and the third temperature control device are preferably air conditioners.
The paint spraying air treatment method comprises the following steps:
s1, respectively feeding waste gas discharged from a primer paint spraying and leveling chamber 4, a finish paint spraying and leveling chamber 5 and a varnish paint spraying and leveling chamber 6 into a first circulating air box 1, a second circulating air box 2 and a third circulating air box 3 for first-stage concentration of the waste gas;
s2, enabling waste gas discharged from the first circulating air box 1, the second circulating air box 2, the third circulating air box 3, the first system groove 9, the second system groove 11, the third system groove 13, the paint storage room 15, the paint mixing room 16, the residue scraping machine room 18 and the clean room 20 to enter a preheating part 28 for preheating the waste gas, wherein the first system groove, the second system groove and the third system groove are respectively a system groove of a primer paint spray room, a system groove of a finish paint spray room and a system groove of a varnish paint spray room;
s3, enabling the waste gas discharged by the preheating part 28 to enter the concentration runner 7 for second-stage concentration of the waste gas;
s4, fresh air treated by the concentrating runner 7 enters a clean room 20, a slag scraping machine room 18, a primer paint spraying and leveling room 4, a finish paint spraying and leveling room 5 and a varnish paint spraying and leveling room 6 respectively;
s5, the waste gas discharged from the concentration rotating wheel 7 and the drying furnace 25 enters an RTO or TNV combustion chamber 27 to be burnt.
The temperature of the combustion chamber 27 was 820℃and the pressure was 2500pa.
The paint spraying air treatment system and the treatment method are environment-friendly, energy-saving and convenient for wide popularization.
The foregoing detailed description is given by way of example only, and is not intended to limit the scope of the claims to the exact form disclosed, as defined by the claims and their equivalents; any equivalent alterations or modifications made in accordance with the spirit of the disclosure fall within the scope of the disclosure.
Claims (4)
1. A paint air treatment system, characterized by comprising a first circulation bellows (1), a second circulation bellows (2) and a third circulation bellows (3),
the first circulating air box (1), the second circulating air box (2) and the third circulating air box (3) respectively carry out first-stage concentration on paint mist in a primer paint spraying and leveling chamber (4), a finish paint spraying and leveling chamber (5) and a varnish paint spraying and leveling chamber (6) by controlling circulating air quantity;
the paint spraying and leveling device comprises a first circulating air box (1), a second circulating air box (2) and a third circulating air box (3), wherein one end of the second circulating air box (2) and one end of the third circulating air box (3) are respectively connected with a primer paint spraying and leveling chamber (4), a finish paint spraying and leveling chamber (5), a varnish paint spraying and leveling chamber (6), the other ends of the first circulating air box (1), the second circulating air box (2) and the third circulating air box (3) are respectively connected with a concentrating runner (7), the concentrating runner (7) is also connected with a first system groove (9) through a first air outlet pipeline (8), is connected with a second system groove (11) through a second air outlet pipeline (10), is connected with a third system groove (13) through a third air outlet pipeline (12), is connected with a paint storage room (15) and a varnish adjusting room (16) through a fourth air outlet pipeline (14), second-level concentration is carried out on paint mist through a sixth air outlet pipeline (19), and the first system groove (9), the second system groove (11) and the third system groove (13) are respectively a system groove of the varnish room of the primer paint spraying chamber, and the varnish room clean room groove system groove is a system groove of the varnish room;
fresh air treated by the concentrating runner (7) is connected with a clean room (20) and a slag scraping machine room (18) through a first air inlet pipeline (21), is connected with a primer paint spraying and leveling chamber through a second air inlet pipeline (22), is connected with a finish paint spraying and leveling chamber through a third air inlet pipeline (23), and is connected with a varnish paint spraying and leveling chamber through a fourth air inlet pipeline (24);
the concentration rotating wheel (7) and the drying furnace (25) are connected with the combustion chamber (27) through a seventh air outlet pipeline (26);
the concentrating runner (7) is connected with a preheating component (28), and the preheating component (28) is used for preheating paint mist entering the concentrating runner (7);
the preheating component (28) is an electric or gas heater;
the concentrating runner (7) is also connected with a heat exchanger (29), and the heat exchanger (29) is used for heating the desorption process of the concentrating runner (7);
the paint spraying air treatment system further comprises a first air conditioner (30), a second air conditioner (31) and a humidifier (32), wherein the first air conditioner (30) is used for providing fresh air for the clean room (20) and the slag scraping machine room (18), the second air conditioner (31) is used for providing fresh air for the paint storage room (15) and the paint mixing room (16), and the humidifier (32) is used for adjusting the humidity of the fresh air entering the second air inlet pipeline (22), the third air inlet pipeline (23) and the fourth air inlet pipeline (24).
2. A method of paint mist treatment using the paint air treatment system of claim 1, comprising the steps of:
s1, paint mist discharged from a primer paint spraying and leveling chamber (4), a finish paint spraying and leveling chamber (5) and a varnish paint spraying and leveling chamber (6) respectively enter a first circulating air box (1), a second circulating air box (2) and a third circulating air box (3) for first-stage concentration of the paint mist;
s2, enabling paint mist discharged from a first circulating air box (1), a second circulating air box (2), a third circulating air box (3), a first system groove (9), a second system groove (11), a third system groove (13), a paint storage room (15) and a paint mixing room (16), a slag scraping machine room (18) and a clean room (20) to enter a concentrating rotating wheel (7) for second-stage concentration of the paint mist;
s3, fresh air treated by the concentrating rotating wheel (7) respectively enters a clean room (20), a slag scraping machine room (18), a primer paint spraying and leveling room (4), a finish paint spraying and leveling room (5) and a varnish paint spraying and leveling room (6);
s4, paint mist discharged by the concentrating rotating wheel (7) and the drying furnace (25) enters a combustion chamber (27) for combustion treatment.
3. A treatment method according to claim 2, characterized in that it comprises, before S2, a step of carrying out a preheating operation on the paint mist discharged from the first circulation bellows (1), the second circulation bellows (2), the third circulation bellows (3), the first system tank (9), the second system tank (11), the third system tank (13), the paint storage room (15) and the paint mixing room (16), the slag scraping room (18), and the clean room (20) into the preheating part (28).
4. A treatment method according to claim 3, characterized in that it further comprises, before S3, the step of adjusting the humidity of the fresh air entering the primer paint and leveling chamber, the top paint and leveling chamber, the varnish paint and leveling chamber by means of a humidifier (32).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611166152.4A CN108607750B (en) | 2016-12-16 | 2016-12-16 | Paint spraying air treatment system and treatment method thereof |
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| CN201611166152.4A CN108607750B (en) | 2016-12-16 | 2016-12-16 | Paint spraying air treatment system and treatment method thereof |
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| CN108607750A CN108607750A (en) | 2018-10-02 |
| CN108607750B true CN108607750B (en) | 2023-10-13 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108607750B (en) * | 2016-12-16 | 2023-10-13 | 上海通周机械设备工程有限公司 | Paint spraying air treatment system and treatment method thereof |
| CN109442654A (en) * | 2018-12-05 | 2019-03-08 | 江苏剑桥涂装工程股份有限公司 | A kind of fresh air cyclical breathing system and device of automation paint line |
| CN111744319A (en) * | 2020-07-07 | 2020-10-09 | 李庆彪 | Double-concentration spraying waste gas treatment system and control method thereof |
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| CN108607750A (en) | 2018-10-02 |
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