Characteristics of biomass pellet machined fuel compared with coal

The combustion characteristics of the fuel processed by biomass pellets are very similar to those of medium-quality coal, and compared with medium-quality coal, they have the following characteristics:

①The calorific value and ash content of biomass pellet fuel are about 10% lower than the calorific value of medium coal. However, biomass pellet fuel burns energy under working conditions, but coal cannot burn, and 10% to 15% of the slag remains combustible. Therefore, the calorific value of the two is very high in actual use.

② The ignition gas of biomass pellet fuel is better than that of coal, which is convenient for ignition and greatly shortens the start-up time of firepower.

③ The solid consumption of biomass pellet fuel is less than that of coal, which reduces the cost of discharging coal ash and environmental pollution. The solid discharge of biomass pellet fuel is all ash, accounting for about 0.4%~7.0% of the total weight; while the solid discharge of coal combustion The discharge is a mixture of ash, alkali and residual coal, about 25% to 40% of the total weight.

④ Coal is much more harmful to the environment and corrodes boilers than biomass pellet fuel. Soot contains a large amount of granular C and toxic SO2, CO and other corrosive gases. The main component of biomass pellet fuel is C-H organic matter, and there is no granular C and SO2 in the smoke, mainly C-H evaporated gas, and its SO2 and CO consumption are close to zero; the smoke color is lower than Ringelmann level 1 during combustion, and will It has greatly reduced environmental pollution and carbon dioxide emissions, and biomass pellet fuel has the reputation of "clean fuel" in my country.

⑤ The cost and time of using biomass pellet fuel for boiler fuel is less than that of coal. A 0.5t boiler burning biomass pellet fuel costs 11% less than coal, and saves time by 34%. A 0.5t boiler uses 10% less fuel than coal, saving 16% time.

⑥The continuous burning time of general biomass pellet fuel is 8~10 times higher than that of soft bulk materials, and it is in a stable and continuous burning state.