... device and sealing ring, feeding device, discharging device, gear, gearbox, electric motor, cyclone dust collector, furnace and etc.3. Rotary Dryer ... drier heating source: coal, coal gas, natural gas, LPG gas, wood, and etc.4. Rotary Dryer Drum Drier Mode of flow ... -45104.9 High Eficiency Rotary Drum Dryer for Slag, coal, wood, bagasse