• ZLSP200B R-type Electric Pellet Mill
  • MPL300 Mobile Pellet Plant
  • Large Ring Die Pellet Mill
  • D-type ZLSP200B Small Pellet Mill
  • Biomass Screw Briquetting Machine
  • Hydraulic Wood Briquette Machine
  • ZLSP200B R-type Electric Pellet Mill
  • MPL300 Biomass Mobile Pellet Plant
  • Large Ring Die Wood Pellet Mill
  • D-type ZLSP200B Small Pellet Mill
  • Screw Biomass Briquetting Machine
  • Hydraulic Wood Briquette Machine
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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.

rotary drum dryer

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℃