... energy consumption 3.convenient for transportation 4.rotary drum dryer Usage of cow manure rotary drum dryer 1, with the heat ... 3,working method: a heated gas. Working principle of the rotary dryer:1,by conveyor raw materials is convery into dryer2 ... furnace2, tube3, conveyor4, sawdust collector ModelTransfersBarrel dryer(mm) tube length(m) Ton/h Gradient(°) (r/min) Rotational Speedmotor power(m3) ...