How Does A Pellet Making Contraption Work, In Addition To Wood Fuel Pellets

November 20, 2009

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A pellet manufacture machine is a description used by several to describe either a pellet mill or pellet press. The make use of of a pellet production machine can take many forms, from producing animal feed pellets to biomass fuel pellets, and even cookery pellets for wood pellet grills. Each pellet production machine has different characteristics depending on what kind of pellet they are generating and from what sort of raw material. Particle size and substance density impact on which machines are fitting and the energy required. A wood pellet device has specific features which facilitate a wood pellet machine to produce wood pellets more professionally.

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Wood is a high density biomass, it therefore requires more power to compress the wood into pellet form. Consequently wood pellet machines generally have more power, or a lower gearing to increase torque to the pellet mill. Also to gelatinise wood requires more temperature than many other biomass raw materials. In many cases dry steam is used to heat the raw matter to the required temperatures, this again requires an additional source of energy. Pellet creation is a skilled procedure, several variables and factors have to be restricted to produce an resourceful process in generating quality pellets. Moisture control is a key feature of pellet making. To produce pellets, most raw resources need an average moisture percentage of between 10-15%. However the consistency of the batch in terms of moisture is also important. Poor consistency within the raw material will create poor consistency in pellet quality.

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Depending on the end use of the biomass pellets, the raw matter used must be selected carefully. For instance premium fuel pellets command a specific quality of raw material to produce an ash content below 1%. This means the wood sourced must contain virtually no bark, and be from a pine or spruce residue. At this time the premium fuel pellet market is dominant, however in the future more standard grades of pellets will come out.
As stated making wood pellets demands a superior amount of power during production. Production wood pellets also puts a greater demand on the bearings of the machinery and reduces the life of consumable parts such as dies and rollers. Nevertheless many other biomass materials can also be upgraded into pellets for numerous uses, such as fuel pellets. Though there are issues with other biomass pellets in their burning uniqueness.
Pellet making as described is a skilled method, which is dependant on the raw material having the correct features and qualities to produce a value pellet. At PelHeat we develop small scale mobile pellet manufacture units, and we also developed the Wood Pellet Production Guide.

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