海城滑石矿一粉车间三台5R-4018型摆动悬辊式磨粉机(生产量3.3～18吨/小时,风量3,400×3米3/小时)。由于管路接头处、给料处以及原料细磨过程中产生的蒸汽会形成余风(如图1所示),排放时带出大量滑石粉,污染作业环境,影响工人健康。1983年该矿采用了 NKB型三段宽极距单室单电场 Haicheng talc mine a powder workshop three 5R-4018-type oscillating hanging roller mill (production of 3.3 to 18 tons / hour, air volume 3,400 × 3 m 3 / hour). As the pipe joints, the feedstock and raw materials produced during the fine grinding of the wind will form the residual wind (Figure 1), discharge a large amount of talcum powder, polluting the working environment, affecting the health of workers. In 1983 the mine used a NKB-type three-stage wide-pitch single-chamber single electric field