Pellet production characteristics change depending on the raw matter being processed, in addition to the equipment used. Many raw materials contain sufficient untreated binding properties owing to their lignin content. Lignin is is the organic carbohydrate, which gives biomass its strength.

Some wood materials have more lignin that others, for case in point biomass compared to grass. On the other hand depending on the density of the raw matter, in addition to the type of equipment used, influences if the lignin can be properly utilized to form pellets. Where there isn’t sufficient lignin, or the lignin cannot be utilized, supplementary binders can be used. Water as well as vegetable oil, among other oily waste wood can be used as binders, on the other hand their inclusion rate has to be quite high, for example up to 30%.

They also generally do not create a pellet of enough density as well as durability, low inclusion industry standard pellet binders are more suitable. Industry standard low inclusion binders usually need only a 0.25-1% inclusion rate. Wood pellet manufacture compared to grass pellet construction for case, is a far more fuel intensive process. The wood generates increased resistance as it passes because of the die, due to its increased density.

Therefore industry standard binders can also be used to lubricate the die during wood pellet manufacture. Lubricating the die has multiple benefits in the pellet mill. Lubrication can raise productivity, reduce wear on disposable parts plus increase wood pellet quality.

Learn more about Pellet Die

Using low inclusion binders to also lubricate the pellet mill die during manufacture has multiple payback. One of the compensation is increased productivity owing to reduced resistance because of the die. Even on the other hand resistance is related to compression, pellet quality can still be maintained owing to the additional binding properties of the binder. The lubrication can also increase die and roller life within the pellet mill. Also the reduced resistance also reduces fuel consumption during manufacture. By way of an increased productivity along with reduced fuel demand plus increased life of consumable parts, the additional price of the binder is easily recovered.

Read more about Straw Pellets

As stated many raw materials do have enough natural lignin to act as a pellet binder, though releasing that likely in a small pellet mill can be difficult. Utilizing lignin as a binder relies on enough heat plus pressure generated in the process. This may not be an issue in the small pellet mill when processing grass, as it much easier to heat the lignin to the required temperature as most grass has a low density. Generating pellets from biomass however can be much more difficult, along with therefore requires a binder.

For more information on Small Pellet Mills