... can use coal, gas, electricity, oil and wind power to heat the dryer machine.4. How ... the rotary dryer to work?The raw material plate is arranged conveniently to allow adjustable angle ... front roller circle, rear roller circle, gear, side plate of rolls, small gear, outlet part, reduce box, motor ... other fuel. 3. We can design the gas generator furnace, firebox, and euipped elevator, belt conveyor , ...