... l Roller Drying machine, rotating drying machineRoller Drying machine Drum dryer, also known as rotary drum drier, is the material heating ... use sealing device to avoid air leakage.Working Principle:Drum dryer mainly consists of Revolved Body, raise material plate, gearing, ... dry,then discharge the material by the belt conveyor or screw conveyor.Model(mm)Slop angle (%)Rotating speed(r/min)air inlet ...