Sawdust pellet production line

Sawdust pellet introduction
Many materials can be pelletized high quality and high strength combustion particles, like poplar, rubber wood, red wood, palm wood, tree branches, tree root, wood scraps etc.

Sawdust pellet features
Sawdust biomass pellet features less ash, long burning time, large combustion heat and less pollution. Environmental protection is the most important feature. Sawdust pellet production line
1. Chipping process
According to capacity and log diameter size, there are drum chipper and disc chipper for choosing. This process is to shave the log of within 50 cm diameter into chips of within 5 mm, which can reduce drying difficulty and crushing power.
2. Drying process
When choosing cylinder diameter and hot blast stove type, it needs to calculate evaporation heat according to the inlet material moisture and discharge material moisture. Usually, we use three drums dryer, single drum dryer and hot blast stove of consuming oil, consuming coal, consuming gas and consuming pellets. This process can reduce the material moisture from 20%-60% to 12%-18% for next stage.
3. Crushing process
This process is to crush the dried chips into fibrous pieces. The discharge and dust collecting type combine positive and negative pressure, which reduce wearing and dust of the fan. With the advanced discharge way, it can crush the chips into sawdust of less than 8 mm for pelletizing.
4. Pelletizing process
This process is to grind the fibrous piece to pellet with 6mm，8mm，10mm and 12mm size, which is the core part of the whole production line. Before pelletizing, it needs to pick out iron, stone etc. our company adopts the most advanced vertical ring die pellet machine to pelletize, which features minimum energy consumption, minimum wearing, maximum stress and wide application. What's more, it has lowest sensitivity to different materials.
5. Cooling process
The discharged pellets have the temperature of 70-90 degree, which is unable to be packed. The cooling machine will make the temperature reduce to minis or plus 5 degree with room temperature. And then the cooled pellets are packed. This process uses counterflow cooling machine, which features good dust cleaning and short cooling time.
6. Screening process
During pelletizing, cooling and conveying process there will produce some powder for collision. So it needs to use vibrant screening machine to separate the unqualified pellets to achieve the requirement of the packing.
7. Packing process
The final pellets need to be packed, and then sold to customers. It usually uses bags and tons bags. This process packs according to customer's requirement. The packing machine is automatic, which features large capacity, less labor and less packing cost.