... calcite, diatomite, barite, gypsum, alunite, graphite, fluorite, phosphate applicationUltra-fine grinding machine is a powder processing equipment, ... used in calcite, diatomite, barite, gypsum, alunite, graphite, fluorite, phosphate rock, limestone, dolomite, kaolin, bentonite, talc, mica, magnesite, ... the material into the grinding chamber is cooped up by shovel blade into the gap between the roller ...