Cement rotary dryer is suitable to dry metallic and nonmetallic minerals, clay in cement industry and coal in coal mine, etc. Characteristics of cement rotary dryer include high drying capacity, smooth rotation, low energy consumption and easy operation. Our products advantages : 1. Shell adopts assembly structure and its precision has been improved a lot, which will be more convenient for transport. 2. According to different fuel properties, suitable raising plate will be adopted, which can make material get more heat exchange. 3. Sealing is simple but efficient, which can improve capacity and improve whole machine performance. 4. Its matching combustion furnace is energy-saving type, which take small area and is easy to adjust. Cement rotary dryer is mainly compose of driving device, supporting roller, thrust roller, cylinder, kiln inlet, kiln outlet and sealing device. 1. 2-3 supporting points can guarantee the contacting surface between supporting roller and tyre is paralleled with axis line of cylinder during installation. 2. Supporting device is antifriction bearing (occasionally uses slide bearing). This design has simplified the supporting device of supporting roller, and reduced the useless power loss during operation. It has the features like easy operation and maintenance. 3. Suitable shim between tire and shell will ensure the tire ring on the shell tightly to increase the shell strength. 4. The main driving system uses new type AC variable frequency technology. Compared with electromagnetic speed control and DC speed control, that can save energy, have large range & high precision of speed regulation, high efficiency and running smoothly. 5. Radial direction contacting type sealing device is adopted at kiln inlet and outlet. They are perfect suitable for dimension tolerance of cylinder and skewing movement of cylinder. This sealing device’s feature is good performance, longer working life and easy for replacement.