... 7.5T/H 3.high efficiency Roller Pulverizer For ultrafine powder 1. Application of roller mill (HGM series ultrafine ... storage hopper, vibrating feeder,2). Main unit, inverter classifier, cyclone collector, pulse deduster system,3). High pressure positive blower, air ... ) The qualified particles are screened and driven into the cyclone powder collector, finally exit from the discharging valve at the ...