1. The manufacturing process of high-speed rail, subway, automobile and other vehicles involves the emission of a variety of environmental hazards.

2. Robot welding needs to build a welding smoke room, collect the smoke and dust, and then collectit into the pipeline to enter the dust collector for purification.

3. For multiple intensive manual welding stations, it is necessary to install mobile welding fume hoods, which are then collected to the pipeline for purification.

4. For singlemanual welding station, mobile welding fume purifier can be used.

5. For multiple grinding stations, the grinding room can be used and then collected to the pipeline to enter the dust collector for purification.

6. Single manual grinding station,grinding table can be selected.

7. In the process of coating powder spraying, the filter cartridge dust collector can be selected for dust removal.

8. No matter the bag filter or the cartridge filter, the zero emission of waste gas is the trend.

9. There is no exhaust chimney, and the exhaust gas is discharged indoors after purification, and the emission concentration is less than 1 mg / m3.