... material rotary dryer, rotary drying machine, sand dryer, sawdust dryer, coal dryer, coal slime dryer, bentonite dryer, ore concentrate dryer, wood chip dryer, cassava dryer, gypsum dryer, cow dung dryer, drying ... rolls, small gear, outlet part, reduce box, motor , heated air duct, inlet month and furnace body and other structure. 2. The ...