Driving method: Center driving, Production method: Closed Circuit, Production capacity: 75-80 t/h (Feeding size of clinker: =25mm,synthetical moisture:=0.5%, Feeding temperature: =50?), Wind speed in the mill: =0.5 m/s, Fineness of finished products: 300-350 m2/kg.), Rotary speed of mill: 16.3r/min, Effective volume of mill: 143m3, Charging capacity of mill ball: 191t