Rotary dryer is widely used for drying the chalk slags, coal powder, slags, clay and other materials in the building materials, metallurgy, chemical industry, cement industry. The rotary dryer has a better adaptability and can dry various materials with a simple and reliable operation. The rotary dryer is mainly composed by the revolving body, lifting plate, driving device, supporting device, sealing ring and other components. So it has the advantages of reasonable structure, perfect in workmanship, high yield, low energy consumption, convenient to operate.In addition, we need to produce the equipment with large-scale, high strength, high efficiency, and improve the adaptability of the raw material and product quality; We also should further research the dehumidifier and develop new high efficient and special rotary dryer; The development of rotary dryer must take the saving energy and comprehensive utilization of energy; And develop automatic control technology to ensure the realization of the optimal operating conditions; At the same time, with the attention of humanity to the environmental protection, the improvement of environmental protection will also be needed to study.Rotary drier is mainly composed of cylinder, under frame, feeding and discharging devices, transmission device, gear cover, etc. (Optional auxiliary equipment includes combustion chamber, feeder and discharging device, and dust collection equipment). Rotary drier manufactured by us adopts new lifting plate, which is of functions like guiding, current-sharing, and material rising. The materials are raised and evenly drop so that they are in full contact with heat for better drying efficiency. Our rotary drier is designed with the best working conditions, which enables it to save 10-15% of energy and increase 10-15% of productivity compared with common dryers.