After the pelletizing process, the wood pellet is hot. Cooler lowers the
temperature of the hot pellets to ±5 °C of room temperature and reduces
the moisture by using ambient air. Cooling would extend the shelf life
of the wood pellet.
Impurity and dust sieve
All pellets will go through a vibration sieve to remove any irregular
pellets or dust.
Bagging and sealing system
Weighing cell and bagging machines put pellets into bags with chosen
quantity and seal the bags for storage. Finished products can also be
loaded by trucks or in container bags.
Features and Benefits of IDAH Process Design and Equipment
IDAH firmly believes in a strategy of design fit for purpose. We
recognize the constraints our customers face with rising ingredient
costs, energy costs, and overheads costs, yet in the face of these
challenges, it is still expected that high-quality products be supplied
into a very competitive market. Our design philosophy is to work
continuously to refine and improve processes and equipment to maximize
the success of our customers. The following describes some of the
features and benefits resulting from this philosophy.
Rugged 24/7 Design
We design our equipment for continuous operations and fulfill the
expectation for minimal downtime. Our mission is to see our equipment
still working years after installation, with only maintenance required
being routine maintenance caused by normal fair wear and tear.
Formulation
Two perspectives are influencing the formulation: culturing performances
and efficiency of the machinery. For example, choose the right wood
source is essential. Inappropriate wood sources will lower the steam
incorporation level and causes jams at the pellet mills. Fat and
moisture content play inseparable roles in the hammer mill and
pulverizer throughput.
Pre-conditioning
The independent drive on each shaft of the IDAH twin shaft lowers power
consumption and noise. The paddles' reverse rotation allows completely
emptying the chamber. The misting steam and water injectors further
improve conditioner performance. The following conditioner system used
steam jacketed (or heat jacketed) to create a homogenous mix with little
to no free water. Insufficient pre-conditioning will cause cracks on the
pellet surface and creating dust fines.
Cooling
The counterflow cooler is used for cooling pellet and extrudate. Warm
(hot) pellets get into the cooling chamber, the suction fan will
transport out the air inside the chamber, and fresh ambient air will
enter the chamber from the bottom, promoting pellet cooling action. When
pellets are accumulated and touch the high-level limit sensor, a
pneumatic discharge swivel valve will operate immediately to discharge
the products. Counterflow air heat exchange ensures to achieve high
cooling efficiency.
Specification of Pellet Mills (for Wood Pellets)
| Model |
PM-42RB |
PM-53RB |
PM-635RB |
| Main Motor (HP) |
150 |
250 |
350 |
| Operation Capacity1 (t/h) |
0.4-0.6 |
1.3-1.5 |
1.8-2.0 |
Note:
1) Wood Pellets, pellet die hole size Ø 8.0 mm, moisture content
< 12%, oil content <7%