... equipement used in calcite, diatomite, barite, gypsum, alunite, graphite, fluorite, phosphate applicationUltra-fine grinding machine is a powder processing ... 6 non-explosive brittle material, ultra-fine grinding is widely used in calcite, diatomite, barite, gypsum, alunite, graphite, fluorite ... blown by airflow into the cyclone powder collector, the separated powder from the discharge port is finished ...