太原机车车辆工厂每年承担着2800辆铁路货车的修理任务,在修车前,为了清除钢结构上的锈垢,采用了抛丸除锈工艺,基本上满足了生产上的需要。但是,抛丸机是60年代产品没有除尘设施,造成粉尘浓度高达125mg/m~3,严重损害着职工和家属的身心健康同时,污染着大片厂区和宿舍 Each year, Taiyuan Locomotive and Rolling Stock Plant undertakes the repair task of 2,800 railway wagons. Before repairing the car, Taiyuan Locomotive and Rolling Stock Plant used the shot blasting and rust removing process to basically eliminate the rust on the steel structure and basically met the production needs. However, the shot blasting machine is a product with no dust removal facilities in the 1960s, resulting in a dust concentration as high as 125 mg / m 3, seriously damaging the physical and mental health of workers and their families and polluting large factories and dormitories