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How to effectively reduce the pollution in the painting room

clean-link.com.cn
2021-08-17

Spray paint room is mainly used for painting products for a special equipment, how to control the quality of paint is called the top priority of car paint. Generally speaking, the spray painting room has a ventilation system, the external air flows in, the internal exhaust gas is discharged, and the external air entering the spray painting room must contain dust impurities, and there will be a lot of paint fog particles in the spray painting room in the process of painting. How to effectively reduce the pollution in the spray painting room and improve the painting quality is what Jielin purification needs to explain to you.

Spray paint room

How to effectively reduce the pollution in the painting room. 

(1) the air entering the automobile painting and baking room is the main source of pollutants. When not using car spray paint room, the door of the spray paint room should be closed and it is strictly forbidden to keep the door open for a long time. In many repair factories, the polishing of putty is often carried out in the area close to the spray paint room, a large amount of dust will be produced in the process of grinding putty, and a large amount of dust such as putty dust can easily enter the spray paint room with the flow of air. Therefore, in the repair shop, the putty grinding work should be carried out in the area away from the spray paint room.

(2) when the car spray painting room is working, the ventilating fan will draw in the outside air, blow down through the filter cotton on the ceiling of the spray painting room, and the air will be drawn out of the spray paint room from the floor of the spray baking room, and the downdraft will be created in the spray baking room, so that even if there is a small amount of dust in the spray baking room, it will not fly up. The air filter cotton on the ceiling of the spray paint room can filter out most of the dust, thus keeping the air in the spray paint room clean. Therefore, the filter cotton on the ceiling of the spray-baking paint room and the adsorptive cotton on the floor of the spray-baking paint room should be replaced regularly. 

(3) the vehicle to be sprayed is usually the biggest source of pollution in the automobile painting and baking room. There are a lot of pollutants in the wheels, bumpers and engine compartments, and thorough body cleaning can reduce the impact of these pollutants on painting operations. Therefore, good preparation work such as body cleaning is very important. 

(4) the overalls worn by spray painting operators are also an important source of pollution. In many repair shops, the work of polishing putty and spraying paint is done by the same person. Many workers wear the same suit of overalls when polishing putty and spraying paint, which is incorrect. There should be special overalls when painting paint. In the spray paint room, you should wear non-fiber-shedding overalls, rubber gloves, protective masks and respirators, and keep it this way when spraying all kinds of paint. People who do not wear special overalls are not allowed to enter the painting room, but can only watch the painting work from the peep window so as not to pollute the paint. 

(5) in addition to the work that must be done in the spray paint room, such as covering the car body and spraying, other car body preparation and paint deployment work should be carried out outside the spray paint room. Some repair shops even clean vehicles or polish putty in spray-baking rooms, which is a serious violation of the code of practice for repainting. 

(6) spray guns and other spraying equipment should be kept clean. The spray gun should be cleaned immediately after each spraying operation to prevent the paint in the gun from drying. After drying, the paint will condense into pieces. If the dry paint flies out during spraying, it will form defects on the paint surface.

(7) the floors and walls of the spray paint room should be cleaned after each painting work is completed, and the covers used to cover the car body should be cleaned. Spray paint should try to use disposable covers to cover the car body, try not to use cotton cover clothes and wheels, because this kind of clothes are easy to gather dust. 

(8) sundries such as spare parts and paint cans should not be placed in the car painting room, as these things will accumulate dirt and eventually pollute the vehicle to be sprayed. Spray guns, paper tape, putty, cars, clothing and overalls should not be stored in an open environment, these items should be kept in an airtight and ventilated storage room. 

Spray painting quality is the core of the spray painting room, it is very necessary to control the cleanliness of the spray painting room, we must strictly follow the norms in all aspects. 

Introduction of waste gas treatment process in spray painting room of automobile repair factory. 

Organic waste gas "air duct" paint decomposer "UV ultraviolet photolysis equipment" activated carbon box "induced draft fan" meet the discharge standard. 

Paint decomposition device. 

The waste gas is first collected by the workshop collection system into the paint decomposition device to remove particles in the waste gas, so as not to block the organic waste gas purification device, and then enter the organic waste gas purification device. After the purification process of the organic waste gas purification device, the waste gas is purified and the amount of waste gas discharged can meet the discharge standard. 

Paint decomposition device is a kind of purification equipment for the pretreatment of viscous dust such as paint fog in our company. it has the characteristics of high dust removal efficiency, non-clogging, low resistance, high water fog removal rate, etc., dust removal efficiency ≥ 85%, water fog removal rate ≥ 90%. 

An air outlet is set up in the upper part of the painting room to discharge the waste gas produced in the room to maintain a certain negative pressure in the room, and the waste gas is discharged into the waste gas treatment equipment for treatment.

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