... heat exchange 2.Automatic temperature control system 3.Direct process High quality screw conveyor dryer Work principle:The raw material plate ... materials would be dryed.Machine size:Can be designed according to client's capacity.Components:Composed of cylinder, lifters, ... gas, wood, and etcUsage:Widely used to dry yellow sand, clay, slag, flyash, , iron powder,sand in casting, ect.Investment:Low ...