Go Greener Tips

There is very little information available on the internet on the specifics of wood pellet production. There is a lot of general knowledge of how the process works, though it is very light on detail. The reasons for this is straightforward, very few people have first hand experience of the process, plus how it actually works. The fact of the material is biomass pellet construction is a skilled process, and describing the process in a few works, go no where near to explaining the complexity and detail of the process. At PelHeat we create small biomass pellet mills, along with to improve general knowledge of the process we have developed this guide.

Learn more about Pellet Mill

Pellet mills come in a variety of dissimilar shapes and sizes, including small pellet mills. There are various dissimilar designs of pellet mills, and some are more common than others in the design of small pellet mills. Also the size of the pellet mill can influence its ability to process a variety of raw materials. Therefore a small pellet mill can struggle to create pellets out of certain materials, particularly high density materials, such as wood pellets as well as particularly hardwood pellets. The reasons most small pellet mills struggle to create biomass pellets, is they lack ample power to compress the biomass, in addition to they also do not generate adequate heat to melt the wood. As wood is a much harder matter than straw for instance, either more power is required in terms of a larger motor, or a lower gearing. Wood melting is crucial to the pellet process in addition to pellet binding. Wood melts at a much higher temperature than straw, and the friction generated in a small mill is usually insufficient to reach the required temperatures. Larger pellet mills have a larger contact area, which generates more friction, as well as thus heat. Also large pellet machines usually have steam conditioners to enlarge the temperature of the biomass before it enters the pellet mill.

Read more about Pellets

There are two core principle designs of pellet mills, which is either a flat die or disc die design. Flat die pellet mills work on a upright process design, by means of raw matter entering from above along with reducing down into the process area. The die is horizontal, by way of a set of rollers rotating across the surface. As the raw material falls from above, the rollers compress the matter due to the die in a perpendicular motion. Flat die pellet mills are a much more well-liked design for small pellet mills, due to their more uncomplicated design along with operation. To learn more about flat die pellet mills, their compensation along with disadvantages, please click below to download the guide. Sphere die pellet mills work in a unlike manor to flat die pellet mills. In a sphere die pellet mill the die encompasses the rollers, hence the ‘ring’ description. The rollers apply pressure to the inner surface of the die, compressing material due to the outer surface of the die. Material is forced fed horizontally into the centre of the circle, Pellets then fall vertically away from the sphere. Small sphere die pellet mills do exist, though they are not as in style due to their more complicated design plus higher costs. Yet sphere die pellet mills do have certain benefits over flat die pellet mills.

For more information on Pellet Fuel