... materials would be dryed. Rotary dryer is used to dry slag, clay, limestone, It is mainly used for cement, chemical, metallurgical, building ... , easy operation, high output and so on. Rotary dryer is used for drying materials with a certain humidity or granularityin milling ... , it is used widely. Indirect heat transfer Rotary dryer: It is used for drying materials with humidity or granularity in the ...