The ash content of energy-saving biomass burning pellets is an important indicator of their quality.
Generally speaking, the ash content of energy-saving biomass burning pellets is relatively low. The ash content of burning pellets made from different types of biomass raw materials will vary. Common biomass raw materials such as sawdust, straw, rice husks, etc., are processed into burning pellets, and the ash content is usually between 1% and 10%.
Ash is mainly composed of minerals in biomass raw materials. These minerals will remain during the combustion process to form ash. The ash content will have a certain impact on the combustion equipment and the combustion process.
First, a higher ash content may cause increased wear of the combustion equipment. During the combustion process, the ash will flow with the air flow and rub against the inner wall, pipes and other parts of the combustion equipment, thereby reducing the service life of the equipment. In addition, ash may also block the vents, nozzles and other parts of the combustion equipment, affecting the combustion efficiency and stability.
Secondly, the ash content will also affect the heat release during the combustion process. Ash itself does not participate in the combustion reaction, but its presence will absorb part of the heat, thereby reducing the combustion efficiency. At the same time, a higher ash content may also lead to incomplete combustion and produce more harmful gases and pollutants.
In order to reduce the ash content of energy-saving biomass burning pellets, the following measures can be taken:
First, select high-quality biomass raw materials. Different types of biomass raw materials have different ash contents. For example, woody biomass raw materials usually have lower ash contents than herbaceous biomass raw materials such as straw. Therefore, when producing burning pellets, woody biomass raw materials can be given priority.
Second, optimize the production process. During the production process, impurities and minerals in biomass raw materials can be removed through screening, washing and other process steps, thereby reducing the ash content. In addition, advanced combustion technologies such as high-temperature gasification combustion can be used to improve combustion efficiency and reduce ash generation.
In short, the ash content of energy-saving biomass burning pellets is an important indicator that needs attention. By selecting high-quality biomass raw materials and optimizing the production process, the ash content can be effectively reduced and the quality and performance of burning pellets can be improved.
