... kinds,one is one drum rotary dryer,one is three drum rotary dryer.One Drum Rotary DryerThe Rotary Drier is widely used in ... sand, limestone and so on. It is made into rotary body, lifting blade, driving device, supporting device etc. The dryer has ... low energy consumption and convenient for transportation.Working Theory of Rotary dryerRotary dryers consist of a horizontally inclined rotating cylinder. ...