Large-sized Pellet Plant

Flow chart:


The medium and large sized wood pellet plant usually include Wood chipper, Crusher, Dryer, Hot blast stove, Wood pellet mill, Cooler, Sieve machine, Packing machine, sealing machine, screw conveyor, belt conveyor etc. These machines are divided into four parts as follows:
1. Crushing system
There are wood chipper and hammer mill in the crushing system, which used to choose according to the size of your raw materials.
The wood chipper used to crush the wood log into small size wood chips. And Hammer mill used to crush the wood chips into sawdust for pelletizing. 

2. Drying system
The best moisture of your raw material for pelletizing is 15%. For wood pellet plant with capacity more than 1t/h, we suggest you use the rotary dryer. This rotary dryer need match the hot blast stove which used to offer hot air for the rotary drum. 

3. Pelletizing system and Cooling system
The pelletizing system used to process sawdust after crusher and dryer process above. The size of wood pellet is 6mm or 8mm usually. There are two kinds of wood pellet mills with one is gear drive and another is belt drive.

After the pelletizing process, the temperature of the wood pellet is about 60-80 degree, and the moisture content of the wood pellet is about 15%, so we need use Cooler to reduce about 3-4% moisture, such this the wood pellet is easy to store.

 4. Sieve and packing system
The sieve machine used to select quality standard wood pellet and get rid of the small size pellet.
For easy storage and sale, the wood pellet is often packed into the plastic bag. It can void humidity and broken.