This occurs mainly in the refinery. One situation occurs when batching. The raw materials for tires consist of more than a dozen kinds of chemical raw materials, including carbon black with very small particle size. Carbon black in large factories is directly transported by tanker trucks to carbon black tanks, and is automatically dosed through pneumatic conveying, which is basically free of dust pollution. While the small factory is to use the unpacking machine to unpack the carbon black package, and then manually batching, pollution is quite large. The second situation occurs in rubber refining. Large factories use advanced refining machine, combined with automatic batching system, basically solved the dust pollution, a well-managed refining workshop, the boss can white socks and slippers in the slipper. Small factories can be miserable, the rubber refining machine or kneading machine, the addition of carbon black, the workshop can not see the people, workers in addition to teeth and eyeballs are white, the other are black! Moreover, the particles of carbon black are very small and can drill into the sweat pores of people, so before working, we have to take off our clothes and apply a layer of talcum powder all over the body to fill the sweat pores, so that we can wash the carbon black on our body after refining the glue! Otherwise, the carbon black drilled into the sweat pores, at that time is washed, but a sweat, carbon black will come out again!

2. Chemical pollution

Happens in the vulcanization workshop. Antioxidant in the tire, after high temperature and pressure, into a steam containing nitrosamines, carcinogenic! Therefore, the prevalence of cancer in the refining workshop is higher!