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