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The rotary dryer is a charcoal  drying equipment used for drying sawdust, grain,  bamboo, and other high moisture materials. It can dry the crushed raw materials quickly with high capacity in charoal production line.
Features:
1. Designed with anti-sticky drum-wall and assembled material-lifting board.
2. The rotary dryer is divided into secondary-granulating section, balling section, polishing section and drying section, etc. Rotary drum dryer features convenient installation and transportation as a result of its flange connection.
3. This large sized rotary dryer is primarily composed of vibrating feeder, heating furnace, drying device, and air intake and air outlet device, and more.
4. With the features of low noise, less pollution and good drying efficiency.
Working Principle:
1. The rotary dryer consists of heating device, feeding device, transport device, discharge device, dust extraction device and other connecting parts.
2. For the installation, the rotary drum dryer should incline slightly so that the discharge end is lower than the material feed end in order to convey the material through the rotary drum dryer under gravity.
3. Materials to be dried enters the rotary dryer, and as the rotary dryer rotates, the material is lifted up by a series of internal fins lining the inner wall of the rotary drum dryer.
4. When the material gets high enough to roll back off the fins, it falls back down to the bottom of the rotary drum dryer, passing through the hot gas stream as it falls.
Rotary dryers are a highly efficient industrial drying option for bulk solids. They are often chosen for their robust processing capabilities and their ability to produce uniform results despite variance in feedstock.
Rotary dryers work by tumbling material in a rotating drum in the presence of a drying air. They can also be indirectly heated to avoid direct contact between the material and processing medium.
The drum is positioned at a slight horizontal slope to allow gravity to assist in moving material through the drum. As the drum rotates, lifting flights pick up the material and drop it through the air stream in order to maximize heat transfer efficiency. When working with agglomerates, the tumbling action imparted by the dryer offers the added benefit of further rounding and polishing the granules.

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