Rotary Dryer ,also named revolving tube dryer,is used to drt slag,clay and other materials in construction,metallurgy,chemical,and cement industries.The machine is made up of a rotaing object,win-nowing board,a wheeling device,an upholding device,and a sealed circle.It has reasonzble structure,high quality,and low energy cost.Being of excellent workmanship,it is easy to operate.