No matter the raw material is single or mixed, keeping the consistency of the raw material is very essential for the pellet production in a pellet plant. After the material is milled and dried, a batch mixer is required to blend the raw material evenly. If the raw material is inconsistent, the moisture percentage will be unstable and result in the changes in material density and poor binding properties, which will severely affect the quality of pellets made by an homemade or industrial wood pellet mill.
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Mix Raw Material Before Pelletizing
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The Temperature Of Pellet Mill Die
Heat and pressure are two key factors in the production process. Heat can soften the natural lignin of the raw material, especially for wood material, thus to bind the loose feedstock in hard and shiny pellets with high density. That is to say the temperature of pellet die significantly determines the quality of pellets and the productive efficiency.
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The Metal Types of Pellet Mill Die
There are several types of metal that can be adopted to manufacture the die of the pellet mill parts. Each metal has different characteristics, but most of all, the essential features of die are abrasion resistance and corrosion resistance, which is hard enough to handle the pressure during the production process and achieve high production efficiency.
Carbon Steel Alloy
The greatest strength of carbon steel are good abrasion and breakage resistance. The drawback is not resistant to corrosion. It will get rusted easily and worse still, will block the hole of the die and affect the productivity. Adding some lubricative agent before or after the production can help ease the corrosion. Moreover, carbon steel has good hardness, longest service life and low cost, so it is still applicable to many materials.
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