Ask a Question
or
Create a Poll
  1. Home /
  2. Questions /
  3. Science
  4. / Physical Sciences
  5. / Earth Sciences
  6. / Geology
  7. / Fossil Fuels

by Answerbag Staff on February 22nd, 2010

Answerbag Staff

Question

Help answer this question below.

How does a wood pellet machine work?

Share:
Other

Answers. 4 helpful answers below.

  • by Jenny Landis-Steward on February 22nd, 2010

    Answerbag Experts

    Great Answer

    Professionally Researched. (What's this?)

    Wood pellets were developed as a way to convert lumberyard scraps into fuel. Pellets are used for heating and cooking. As in all recipes, the quality of the final product depends on the quality of the ingredients and the integrity of the process.

    Types

    Pellets for cooking are generally made from a specific wood, such as apple, hickory, oak or mesquite. They flavor the food with the particular flavor of the smoke they produce. Pellets for heating can be made from sawdust and wood chips of mixed woods.

    Two Ingredients

    Sawdust and wood chips are both residue from lumberyards and are both used in wood pellets. They are shipped to the manufacturing site, where they are put in a huge drum and dried. Wood pellets must not have more than 5 to 10 percent moisture.

    Smash

    The dried wood must be smashed into tiny particles in order to make quality pellets. Hammering the dried wood chips and sawdust is a common process for getting small enough particles.

    Push and Roll

    The resulting dried and finely ground wood product is then pushed into a tube or tubes that are 6 mm to 8 mm in diameter. As more and more is pushed into the same small space and steam or pressure is added, the lignin, a naturally occurring resin in the wood, acts like glue to hold the pellet together.

    Cool

    As completed pellets leave the pelletizer, they must be cooled safely to enable them to maintain their shape. As the pellets cool, they harden. They exit the machine and are ready for bagging or storage.

    Source:

    Video: Factory Tour, Wood Pellet Plant

    Pellet Fuels Institute: Industry Standards

    More Information:

    Biomass Pellet Mill: Wood Pellet Production Guide

    1 comment | Post one | Permalink

  • by pelletmill on April 23rd, 2012

    pelletmill

    our company is expertized in making wood pellet in china,welcome to visit our website:
    www.pellets-mill.com

    source:wood pellet plant,feed pellet plant

    1 comment | Post one | Permalink

  • by pelletmill on April 23rd, 2012

    pelletmill

    Crushing.
    Under the condition of sufficient material supply, the materials with large size such as wood logs ,wood branches ,wheat straw need to be broken down into smaller pieces and then use a hammer mill to crush the material into powder form which reduces the diameter shall less than 3mm.
    Drying.
    Generally speaking, the ideal moisture content of the material is 15%, while the moisture content of the powder material from the hammer mill ranges from 20% to 40%, even higher, no doubt that a dryer is needed. Usually, the dryer consists of two parts, one is hot air furnace for providing heat by burning coal, gas, wood etc. and another is rotary dryer, which can reduce the moisture from 60% to 10%.
    Pelletizing.
    The pelletizing machine includes ring die pellet mill and ring die pellet mill.the ring die one usually used in large plants with the advantages of high output and low consumption while the flat die one is widely used in small household farm by the features of low cost and high pressed density .usually, the flat die pellet mill is mainly used in making organic fertilizer or other animal feedstuffs, and the ring die mill is designed for processing fuel particles for its high rotate speed and low wean.
    Cooling and Packing.
    Cooling is an important subsidiary device for the pellet production line. The cooler is used to lower the temperature from 80 degrees to 35 degrees and reduce the moisture to ensure the quality of the pellets. After cooling process, the final pellets are effectively handled by packing machine, and weighed by the computer, then pneumatically discharge into the bags, which will be traveled along a conveyor where machines are available for sewing the tops of the bags in which dry feed may be placed for storage.
    This is the main process applying for installing a wood pellet plant .
    www.pellets-mill.com

    No comments. Post one | Permalink

  • by lusasa on July 15th, 2010

    lusasa

    Our website has a video. Please visit http://www.lgwheelloader.com/wood-pellet-mill-machines.html

    No comments. Post one | Permalink

Want to attach an image to your answer? Click here.

Did this answer your question? If not, then ask a new question or create a poll.

More Questions. Additional questions in this category.

You're reading How does a wood pellet machine work?

Follow us on Facebook!

Related Ads

Related Questions

Professionally Researched

ANSWERBAG BUZZ

Pellet machine
Ingrediants for quality wood pellets
Pellet machines
Wood pellet ingredients
How does a wood pellet machine work

Answerbag

a Demand Media company