Pellets come in a range of dissimilar diameters, for case biomass pellets for stoves are generally 6mm in diameter in addition to pellet boilers can take larger diameters, including 6mm along with 8mm pellets.

Power stations also use wood and straw pellets in co-burning by way of coal, they use pellets between 10-12mm in diameter. Diameters larger than this are regarded as briquettes. Briquettes are similar to logs, on the other hand they are not as suitable for automatic feed hoppers. Pellet making is a skilled process and different raw materials behave differently. Therefore how to produce biomass pellets depends partly on the equipment used as well as the raw material. One of the first things to consider is the source of the biomass residue. It must be free from contaminates such as stones and metal, as these can cause serious damage to the equipment, particularly the pellet mill.

The raw matter must now be reduced to a small uniform size for the pellet mill or pellet press. The size reduction required depends on the diameter of the pellet created. The general rule is to decrease the size of particles to less than the diameter of the pellet. The type of die used in the pellet mill will affect the compression ratio, and thus the quality along with density of the finished pellet. The material must also be fed into the pellet mill at a restricted rate, if the feed rate is too fast, the slipping force can be exceeded or a build up of resistance could cause the motor to stall.

Learn more about Pellet Mill

Depending on the type of matter being processed unlike pellet machines have diverse attributes. For case the speed of the pellet machine in addition to rated power, change depending on the application. For case materials by lower densities as well as high oil contents necessitate less power during production. So rape cake for example which is a with-product of oil seed pressing has a low density plus high oil content. Rape cake can therefore achieve a high productivity plus low fuel consumption. Wood pellet construction yet requires much more power, and in general much lower productivity.

Read more about Pellet Making Machine

Biomass pellet construction is a precise process, it requires the correct equipment and process knowledge, therefore PelHeat have developed this guide on how to manufacture wood pellets. The guide covers the equipment required plus basic process knowledge to over come probable issues as well as enlarge quality.

For more information on Softwood Pellet

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