Pelletizing is the process of making waste materials into solid
fuel. The condensed matter is then burned to release energy. Wood
pellets are more commonly used than agricultural pellets.
1) Pulverizing System
When the thickness of the raw wood is greater than 10 mm, and more
than 50 mm in width, wood chipper must be used to reduce the size
of the material. Following this, a hammer mill (crusher) must be
used to crush the wood into pieces less than 3 mm in diameter.
(2) Drying System
The best moisture content for pelletization is about 13-15%. Our
rotary dryer is comprised of a stove and main rotary dryer, which
can reduce the material’s moisture content from 60% to 10%. Our
stove is fueled by coal, which greatly reduces electricity
(3) Pelleting System
Driven with heavy-duty gearbox construction, it can produce
continuously in most adverse conditions. The imported key elements
are of high performance with long life and low maintenance cost.
The key parts are made of alloy steel to be very strong and
malleable. Die is made of stainless steel. Pellet machine is widely
used in the granulation of wood, straw, other biomass sources.
capacity ranges from 200kgs to 3T per hour.
(4) Cooling /Sieving /Bagging system
After the pelletizing process, the temperature of the wood pellet
is about 60-80 degrees Celsius, with a moisture content of about
15%. A cooler must then be used to reduce the moisture content of
the wood pellet to about 3-4%, thereby making the wood pellet easy
to store.After cooling, the wood pellet must be protected from
moisture and other environmental conditions. For this there is the
packing process, which is effectively handled by our Semi-Auto
NOTE: PLC System
The system is connected to a Siemens PLC controller, which includes
a motherboard, input & output module, and the relevant
software. The MCC is equipped with a touch panel screen; the
simulation control screen or computer control screen is optional.
The control panel features automatic moisture testing, dosage
application, lubrication, and steam supply, contributing to lower
labor costs. Machinery can operate continuously for 24 hours.