A rotary dryer made by Hongxing Mining Machinery Co.,. Ltd is widely used in industry and agriculture production with so many advantages as simple structure, easy operation, and wide range of applicable materials. After its modification, the rotary dryer can greatly increase production and reduce energy consumption.The rotary dryer is generally placed tilted on the water surface. When the dryer starts to work, the materials enter into the feeding mouth via the elevator and then get separated and crushed under the action of gravity. The separation device runs inside the dryer, thus ensuring the materials get fully heat exchange. The hot air generates from the lower stove and rises up from the bottom to meet materials and exchange heat with them through the heat conduction. Materials’ temperature rises gradually and the moisture gets evaporated unceasingly. In the end, materials which meet the humidity requirements are unloaded from the exit at the bottom, while the gas with water vapor gets ejected from the chimney by the draught fan.Materials are tiled evenly on the band dryer which is driven by the driving device to move back and forth inside the drying machine. The hot air and the materials are mixed inside with each other so that the water of the materials turns into water vapor. The water vapor is emitted from the hydrofuge hole and the whole drying process is completed. The band dryer is widely used in many industries of food, the medicine making, building materials and electrics. It suits well to dry flake and strip materials with good air permeability because of its wide application range, great potential and easy operation.kiln dryer: http://www.sell-mill.com/product/p28.html