... for cement, coal, ore 4.1 year warranty Rotary DryerRotary dryer is widely used for drying materials in industries like cement ... 350-380°) of the rotary drier.Components: Rotary dryer is mainly composed of cylinder, under frame, feeding and discharging devices, transmission device ... heating method. When the mineral materials are fed into the cylinder, it flows down as a result of gravity. Meanwhile, ...