... . http://www.pe600.com/Ore-Equipments/Rotary-Dryer.html Rotary dryer structure features: Dryer consists of wet material belt machine, a combustion ... , precipitator, exhaust fan, a chimney, spiral conveyer. Rotary dryer is the subject of a rotating cylinder with certain slope ... driving device , cylinder rotates through the ring gear. Rotary dryer working principle: The wet material is added from the ...