... kind of machine with a rotating cylinde which is a little bit incline.It is widly used in building material, metallurgy, ... cement to dry the slag, limestone, coal powder,clay,etc.it is simply structure, polished manufacture, high capacity, low cinsumption, conveninent ... the materials would be dryed. Rotary dryer is used to dry slag, clay, limestone, It is mainly used for cement, chemical, metallurgical ...