... , alunite, graphite, fluorite mining machinery ultrafine grinding machine mining machine used in calcite, diatomite, barite, gypsum, alunite, graphite, fluorite, phosphate ... grated to get crushed, fans blow it into the grinding room, blowing powder into the analysis machine, sorting, and the ... not reach the fineness will be brought into grinding room again, qualified powder is will be blown by airflow ...