Why Choose Rice Husks to Make Biomass Pellets?
Rice husk accounts for around 20% of paddy weight, and about 770
million tons husks are produced in Asia annually. However, most
rice husks are discarded as wastes or burnt directly, not only
polluting the environment, but easily resulting in fire. As one of
the most common agricultural wastes, abundant rice husks can be
good raw material for biomass pellets. When burning directly, rice
husk pellets release less amount of ashes and emissions.
Rice Husk vs Rice Husk Pellets
| Material | Average Diameter | Ash Content | Average Density | Moisture Content | Calorific Value |
| Rice husk | 2-3mm | 15-16% | 500kg/m3 | About 12% | 10-13kj/kg |
| Rice husk pellet | 8-10mm | 6-7% | 1120kg/m3 | 10-12% | 15-16kj/kg |
From the above data, we can know that it is an optimal choice to
make rice husks into pellets. Moreover, rice husk pellets have
other advantages as following:
Advantages of Rice Husk Pellets
* burn longer and cleaner
* combustion rate runs up to 25%
* density is greatly improved
* easier to be stored
Application of Rice Husk Pellet
* biomass power plant
* coal-fuel power plant
* industrial boiler
* home heating
* animal bedding
Rice Husk Pellets Processing Technology
The diameter of rice husk is about 2-3 mm, so they do not need to
be crushed before pelletizing. In addition, the low moisture
content of rice husk contributes to the pelletizing of rice husks.
Rice husk pelletizing→Rice husk pellet cooling→Rice husk pellet
packing
Equipment Related to Rice Husk Pellet Production Line
1. Pelletizing
MZLH508 Ring Die Wood Pellet Mill (2 sets)
MZLH508 ring die rice husk pellet mill is always appropriate for large scale commercial and industrial
production. For this 4 t/h rice husk pellet line, 2 sets of MZLH508
ring die wood pellet mill are equipped. Features as following:
* High-precision gear drive makes the production increase 20%
compared with belt drive.
* Imported high-quality bearings & oil seals, better
transmission efficiency, stable operation, and less noise.
* The feeder adopts frequency conversion motor, feeding
continuously and evenly.
* Multiple hole diameters for option, ring die is made of stainless
steel, with features of corrosion resistance and long service life.
* The international advanced spring coupling has advantages of
novel and compact structure, high safety, less noise and low
breakdown.
Ring Die Wood Pellet Mill Technical Data
| Model | Power | Capacity | Ring die speed |
| MZLH508 | 132 kw | 2 t/h | 150RPM |
2. Cooling
SKLN2.5 Slide Valve Cooler Machine
After discharging from pellet mills, rice husk pellets may be 90
degree Celsius. The high temperature can not only result in
cracking and breaking of pellets, but inconvenient to store and
handle. Our cooler can manage this process effectively.
*Adopts counter-current cooling principle, avoiding the direct
contact with cold air and hot-pellet, preventing pellet surface
cracking.
*The latest octagon cooling cabinet design ensures no cooling blind
angle.
*Closed air entering system, large inlet air area and obvious
cooling effect.
*After cooling, the rice husk pellet temperature is not higher than
room temperature 3-5℃, suitable for storage.
Slide Valve Cooler Machine Technical Parameter
| Model | Cooling volume | Capacity | Power | Air shutter power |
| SKLN2.5 | 2.5 m3 | 5 t/h | 0.75kw | 0.55 kw |
3. Packaging
SDBY50 Automatic Packaging System
The packing process is important to protect rice husk pellets from
damp and dust.
*No weighing hopper structure, compact structure, convenient
installation.
*Adopts all-digital intelligent weighing control instrument, with
the features of high weighing precision, high speed, simple
operation, stable and reliable performance.
*The instrument has various functions, including auto-peeling, zero
tracking, out-of-tolerance alarm, communication, and calculation of
gross weight, net weight and bags.
*Reasonable design for easy maintenance.
Automatic Packaging System Technical Data
| Model | Weighting scale | Capacity | Power |
| SDBY50 | 20-50 kg/bag | 360-540bags/h | AC380v/3kw |
If you are intended to establish your career to make fuel pellets
from rice husks, please do not hesitate to contact us for details.
Contact email: support@whirlstonmachine.com
Website: http://www.whirlstonwoodpelletmill.ecer.comhttps://www.woodpelletmachine.net/product/4t-Rice-Husk-Pellet-Plant.html
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