... Sawdust,slag, limestone,coal Sand dryer and Sawdust Rotary Dryer machine Rotary dryer/Drum Drier is widely used in mining industry ... main parts: cylinder, lifters, driving device, supporting device and sealing ring, feeding device, discharging device, gear, gearbox, electric motor, cyclone dust ... about the rotary dryer: Sand dryer and Sawdust Rotary Dryer machine