1.Drum chicken manure dryer; 2.Continuous operation,high capacity; 3.Structure is simple and ... , Indirect-heated type hot air stove, heat conducting oil, electric heating,. This machine is suitable for the materials which containing ... Working PrincipleIt mainly contains, Heating source, feeder(CJAL), feeding machine, rotary roller, material crushing devices, discharging machine, induced draft fan, ...