... exchange 2.Automatic temperature control system 3.Direct process High quality screw conveyor dryer Work principle:The raw material plate which is ... .Heat Resource:coal, coal gas, natural gas, LPG gas, wood, and etcUsage:Widely used to dry yellow sand, clay, slag ... around 20-40mm.Installation and practice:Compared with single cylinder dryer, reduce about 50% area, the groundwork consumption reduce a ...