... sources can adopt stove, oil gas, LPG, etc.B.ApplicationThree drum rotary dryer is mainly for the materials with some water contact, such ... .hHeating typeDirect flow, directradiatorHeating sourceCoal, oil, electricity, gas, biomass materialsRotation speed8-10 r/minRotation Power7.5 KW New Design 3 Drum Sand Rotary Dryer