rotary dryer

The dryer machine is an indispensable equipment in biomass pellet plant process, especially for wood and sawdust that have a high moisture level. Usually the best moisture content for wood or sawdust pellet production is 12% to 18%. If the raw material is too wet, the pellets made out will be easy to break. (Also, if the raw material is too dry, pellets won’t form. in this case we should add water into it.)
The dryer machine we use is Rotary Drum Dryer, which consists of shell, lifting flight, drive assembly, support system and seal.

How does the Rotary Drum Dryer work?

The rotary dryer consists of feeding system, main body, Ducting System and Collector System. It need match stove.
Smoke and air with high temperature produced by the stove are the heat source medium. When material enters the drum through the feeder, heat exchange between material and the hot air begins. Material will move along the bent plat on the wall of the drum by the effect of rolling and introduced air, which is called the concurrent flow drying technology.

Specifications of Rotary Sawdust Dryer

Model	Φ0.8×10m	φ1.2×10m	φ1.5×11m	φ1.8×11m	φ1.8×14m	Φ2.0×15m
Air fan power	15kw	22kw	30kw	45kw	45kw	45kw
Inner diameter	800mm	1200mm	1500mm	1800mm	1800mm	2000mm
Length	10m	10m	11m	11m	14m	15m
Temperature of inlet air	180-350℃	180-350℃	180-350℃	180-350℃	180-350℃	180-350℃
Temperature of outlet air	90-100℃	90-100℃	90-100℃	90-100℃	90-100℃	90-100℃