Beijing water-based paint will be fully employed in the automobile manufacturing industry to reduce emissions

Speaking of volatile organic compounds, everyone may not be familiar with it, but ozone and PM2.5 are certainly not unfamiliar to you, because they are both important pollutants in the air, and volatile organic compounds can produce ozone and PM2.5 under certain conditions. . Therefore, Beijing adopted a combination of engineering emission reduction, structural emission reduction and management emission reduction, and took the lead in implementing the total control of industrial-source volatile organic compounds in the country. At the end of August this year, the city completed the city’s automobile manufacturing industry environmental protection technological transformation project.
In the existing vehicle manufacturing process, volatile organic compound exhaust gas is mainly generated during the spraying and drying process during the painting stage. Through technological transformation, the emission of volatile organic compounds can be greatly reduced. The paint workshop of Foton Daimler Automobile Co., Ltd.’s second plant has undergone technical transformation and has achieved a reduction in volatile organic compounds.
The reporter walked into the painting workshop and saw that the four robot arms were painting the car body with colors. The original “naked” front of the car was continuously sprayed back and forth by the “robots”, and after a while, the bright colors were full. However, unlike traditional spray paint, the reporter almost didn’t smell the pungent paint smell here. The same is true in the drying workshop, where there is no dizzy smell in the corridors. According to the relevant person in charge of the company, the company changed the original solvent-based topcoat to a water-based paint with low VOC emission, paintThe content of volatile organic compounds has been reduced from the original 550g/l to 650g/l to about 150g/l. In addition, the spraying method is changed to robot spraying to improve spraying efficiency. After the renovation, the emission reduction rate of volatile organic compounds from painting exhaust gas will reach more than 50%, and the annual emission of volatile organic compounds will be about 345 tons.
The reporter learned that according to Beijing’s “2013-2017 Emptying Plan”, before the end of August this year, Beijing’s automobile manufacturing industry will fully promote water-based paints instead of oil-based paints in the primer, mid-coat, and color paint links, and organic finishes will be implemented in the finishing process. In-depth treatment of exhaust gas. It is understood that there are a total of 9 automobile manufacturing companies in Beijing, all of which have carried out relevant work and governance projects, and the governance tasks can be completed by the end of August.
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