Why are my pellet mill producing black pellets that are slow to discharge and hard? The blackening of pellets produced by a pellet mill is usually due to the following reasons:
3. Moldy raw materials: Raw materials exposed to wind and rain for years may become moldy and black. After being pressed into pellets, these will also be black.
To avoid carbonization and blackening of pellets, it is necessary to select appropriate raw materials and moisture content. While ensuring pellet formation, the compression ratio of the mold should be reduced. This will not only improve the quality of the pellets but also ensure their calorific value and performance.
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