... are two kinds,one is one drum rotary dryer,one is three drum rotary dryer.One Drum Rotary DryerThe Rotary Drier is widely used in the ... , clay, sand, limestone and so on. It is made into rotary body, lifting blade, driving device, supporting device etc. The dryer has advantages ... in drying Slag,Sand,Coal,Iron Powder,Ore,Quartz Sand,Clay and so on. The advantage of Three Drum Rotary Dryer:1. Save floor ...