... , dolomite, kaolin, bentonite, talc, mica, magnesite, illite, pyrophyllite and vermiculite, sepiolite, attapulgite, rectorite, diatomite, barite, gypsum, alunite, graphite, fluorite ... particle size will fall and return to the mill for being reground while the qualified particle size mixed ... . Furthermore, the lifetime can reach 2-5 years for grinding calcite carbonate.3.High safety and reliabilityAs no ...