... Sawdust,slag, limestone,coal Sand dryer and Sawdust Rotary Dryer machine Rotary dryer/Drum Drier is widely used in mining industry ... dryers. we've designed various rotary dryers for drying slag, limestone, coal powder, clay, sawdust, oil palm fiber, grass, river ... rotation, easy operation, convenient transportation and so on.2. Rotary Drum Dryer main parts: cylinder, lifters, driving device, supporting ...