Dry type ball mill Wet ball mill Raw mill Cement mill Air swept coal mill Ceramic ball mill Metallurgical ball mill Energy saving ball mill Rotary dryer. Drum dryer External heating dryer Slag dryer Coal slime dryer Sand dryer Fly ash dryer Desulfurized gypsum dryer Lignite dryer Stone Crushing Equipment. Impact Crusher Cone.Description of Ball Mill Ball Mill is an efficient tool for grinding many materials into fine powder. The ball mill is used to grind many kinds of mine and other materials, or to select the mine. It is widely used in building material, chemical industry, etc. such as cement, fire-proof materials, aluminum soil, the emery, glass raw materials, building sand, stone materials, metallurgical slag.