When customers are making biomass fuel pellets, in addition to choosing the biomass pellet machine from TONY Biomass Pellet Machine manufacturer, they should also pay attention to how to select raw materials.
Today, TONY teaches you how to choose raw materials, which is very crucial. Because it is directly related to the quality and economic value of the finished particles you produce. The analysis and selection should be made based on four aspects: the type, moisture content, ash content and size of the raw materials.
1. Types of raw materials
Biomass pellet fuel mainly utilizes agricultural residues and forestry waste, which are processed into solid cylindrical pellet fuel by wood pellet machine equipment. According to different raw materials, it can be classified into types such as peanut shell pellets, rice husk pellets, wood chip pellets, corn stalk pellets, and wheat stalk pellets. The type of raw materials determines the calorific value of the produced biomass pellet fuel. Some industrial boilers, due to process requirements, need to burn with a higher calorific value, while others do not require a very high calorific value and are acceptable.
2. Moisture content of raw materials
When processing pellets with a biomass pellet machine, there are strict requirements for moisture content. Neither too high nor too low moisture content is acceptable. Therefore, when purchasing raw materials, regardless of the type of raw materials you are making, it is recommended to control the moisture content between 10% and 15%. If the moisture content is too low, the shape after extrusion will be poor; if it is too high, it is prone to disintegration and failure to form.
3. Ash content of raw materials
Ash content is a crucial factor in determining the quality of biomass pellet fuel. The level of ash content determines the type of boiler in which the pellet fuel is burned. Therefore, how to control the ash content of raw materials is also a key point that every biomass pellet fuel manufacturer focuses on. Generally, the ash content of pine wood pellets is controlled at around 2%, that of miscellaneous wood pellets at around 5%, and that of larch pellets within 1%. The ash content of peanut shell particles is about 12%, and that of rice husk particles is about 15%. The ash content is entirely dependent on the raw materials you choose and has nothing to do with other factors.
4. The size of raw materials
The size of the raw materials determines the processing procedures. If it is sawdust, wood shavings, peanut shells, rice husks, etc., they can be processed into pellets directly without crushing. However, larger raw materials such as scraps need to be crushed before processing.
Choosing a trustworthy pellet machine manufacturer is a very important matter, as it directly affects the quality, usage and after-sales service of the purchased equipment. As mentioned just now, when users are pressing biomass pellets, the first thing they should choose is the biomass pellet machine produced by TONY Company. You can come to our factory to see our actual processing technology.