How does the slagging of the biomass pellet burner form during the combustion process

To When we use biomass pellet burners, many customers do not understand why slagging occurs. In fact, this phenomenon is relatively common, mainly because the softened or molten ash particles are not cooled sufficiently and the temperature is lower. Caused by the heat exchange. The following editor will analyze in detail how the slagging of the biomass pellet burner is formed during the combustion process. To 1. With the further increase of the temperature in the fuel layer in the biomass burner, the temperature in the oxidation layer and the reduction layer exceeds the softening temperature of the ash, especially in the reduction layer, the Fe3+ in the fuel is reduced to Fe2+, Most of the soot particles soften and adsorb each other in the reducing layer, forming a large eutectic. To 2. When the fuel is burned in the biomass burner, as the furnace temperature rises, the softening temperature of the ash is locally reached, and the ash particles will soften at this time, making the sodium, calcium, potassium and a small amount of sulfuric acid in the ash The salt will form a sticky surface. To 3. The large eutectic in the biomass burner will fall, and will quickly cool down when it encounters the heat exchange surface during the fall, so as to directly form a solid adhere to the heat exchange surface, forming the so-called slagging. Since there are many factors that affect the slagging of biomass burners, they are not only related to slagging characteristics such as ash melting point, ash composition, and ash viscosity, but also to the thermal parameters of the furnace, the structure and layout of the burner, the aerodynamic working conditions in the furnace, and the boiler Operating parameters are closely related, so all aspects cannot be ignored. To In order to avoid slagging in the biomass burner, the first thing to do is to select biomass particles correctly, and try to use wood chips biomass combustion particles. Compared with other biomass fuels, sawdust biomass combustion particles have less slagging phenomenon after combustion, and can be burned fully, and the combustion value is also high. To If you are interested in gas oil burners, please contact us for a quote!