What is biomass burner fuel?
The general characteristics of biomass fuel are high moisture content, low ash content, high volatility, low calorific value, and irregular shape, except for the outer shell (rice husk, walnut husk) and core (corn cob, peach pit, etc.) of some agricultural products. In addition to direct combustion, other fuels such as straw and tree branches must be treated before combustion so that they can be distributed or even burned.
In theory, biomass fuel can be burned in coal, coal powder, petroleum or gas combustion devices, but due to the unique combustion characteristics of biomass materials, there are still many problems in burning biomass fuel in these biomass burners, such as coal powder. When it burns in a dry state, it should first be made into powder. However, as biomass fuel is a non brittle material, it is easy to form fiber clusters instead of powder during the grinding process, and early drying is required. Drying high moisture biomass fuel requires a large amount of heat consumption. Therefore, some combustion devices (also known as biomass burners) have been developed to adapt to the characteristics of biomass fuels.
The following biomass burner manufacturers will briefly introduce these combustion devices to you:
1. Biomass fuel layered combustion device: Adopting the same form of layered combustion device as lump coal
2. Biomass fuel fluidized bed combustion device: The fluidized bed reactor has the advantages of uniform mixing, high heat and mass transfer coefficient, high combustion efficiency, less harmful gases, convenient process control, and high reaction capacity. Therefore, fluidized bed reactors for biomass chemical treatment are becoming increasingly popular.
3. Biomass fuel diffusion combustion device: uses mechanical power or wind power to disperse crushed biomass fuel (rice husks, chopped straw, etc.) and then burns it in the air. This type of furnace has sufficient contact between biomass fuel and air in the combustion chamber, resulting in complete combustion and relatively stable temperature.