The whole set HGM10036 Dolomite mill  (Ultra Fine Grinding Mill)(calcite carbonate grinding mill, chalk grinding mill, limestone grinding mill, dolomite grinding mill, kaolin grinding mill, bentonite grinding mill , talc grinding mill, mica grinding mill, magnesite grinding mill, pyrophillite grinding mill, ceyssatite grinding mill, barite grinding mill, gypsum grinding mill, alunite grinding mill, granite grinding mill, fluorite grinding mill, phosphate rock grinding mill, kalium ore grinding mill , float stone grinding mill)consists of hammer crusher, bucket elevator, storage hopper, vibrating feeder, main unit, inverter classifier, cyclone collector, pulse deduster system, high pressure positive blower, air compressors and electrical control systems. Working Principle of Dolomite powder Mill: The main bearing and each dial are driven by electromotor of main machine through reducer, and numbers of rollers, which are rolling in the ring, are driven by dial through plunger. After crushed by hammer crusher, the big materials become small ones and are sent to storage hopper by elevator and further sent to the middle of first dial evenly by the electromagnetic vibrating feeder and feeding pipe. The materials will be driven to the edge of dial by centrifugal force and fall down into the ring, crushed and grinded by roller, and become powder after production of three rings. The high pressure centrifugal blower will inhale air from outside and blow the crushed materials to classifier. The rotating turbo in the powder concentrator will make the coarse materials return to the mill and reground, while the fineness will mix with the air and go into the cyclone and be discharged in the discharge bin, which is at the bottom of it. The air, which mixed with very little fineness, will be purified by impulse duster and discharged by blower and muffler.