Rotary Dryer

Brief Introduction to Rotary Dryer

The material inside the rotary dryer has heat exchange with the high temperature flue gas through shell rotating and material lifting by lifter. The rotary dryer has many good characters like: high efficiency, big capacity, high running rate, saving energy, easy for maintenance, long working life. Variety angle of the lifter will increase the heating exchange rate and short drying time. That is widely used for drying lay, slag, fly ash etc.

After the welding of bases for supporting devices of supporting roller and catching roller, vibration aging treatment should be applied for remove the welding stress. Then, use vertical lathe and boring-milling machine for integration fabrication. This process can guarantee the requirement of fabrication precision and dimension, location tolerance. Installation accuracy of rotary kiln is obviously improved.

interior structure of rotary dryer

Structure and Merits of Rotary Dryer

1. 2-3 supporting points can guarantee the contacting surface between supporting roller and tire 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.

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.

Get Main Features and Function of Rotary Dryer

1. Variety angle of the lifter will increase the heating exchange rate and short drying time.

2. High drying efficiency, big capacity, high running rate

3. Compact structure, operation stable, easy maintenance

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