What are the methods to improve the internal structure of fly ash dryer?

Fly ash dryer usually adopts direct heating method, and the heat source can be coal, gas or electric heat. The equipment structure includes feed port, discharge port, cylinder, transmission device and heat source system. Fly ash dryer has the characteristics of large processing capacity, high drying efficiency and easy operation, which can ensure that fly ash reaches the required degree of drying and meet the needs of subsequent processing or use.

1. Optimize the design of lifting plate. The lifting plate is used to throw the material so that it can fully contact with the hot air. By changing the angle, shape and spacing of the lifting plate, the number of material tumbling can be increased, thereby increasing the heat exchange efficiency.

2. Improve the hot air introduction method. By changing the inlet position and angle of the hot air, the hot air can cover the entire cylinder more evenly and improve the utilization rate of the hot air.

3. Adjust the inclination angle of the cylinder. Reasonable adjustment of the inclination angle of the cylinder can control the residence time of the material in the cylinder, thereby better controlling the drying process.

4. Use variable frequency speed regulation technology. Adopt variable frequency speed regulating motor to dynamically adjust the drum speed according to the material characteristics and drying requirements to improve the drying effect.

5. Enhance the thermal insulation performance of the drum. Use high-performance thermal insulation materials to reduce the heat loss of the outer wall of the drum and improve the thermal efficiency of the desulfurized gypsum dryer.

6. Add material dispersion device. Install material dispersion device in the drum to make the material more evenly distributed in the drum, avoid accumulation, and improve drying uniformity.

7. Adopt multi-stage drying structure. The fly ash dryer is designed as a multi-stage structure, and each stage has different hot air temperature and humidity control to meet the drying needs of different stages.