| Replacing the conventional coal with pelletized biomass is of great significance for energy saving, energy structure optimization, and environmental pollution reduction. The characteristics of pelletized biomass are quite different from those of coal. When the coal-fired boiler is adapted for burning pelletized biomass, the corresponding transformation measures must be taken. Taking a boiler in my company for an example, the boiler furnace and combustion system of the chain coal-fired boiler were transformed. After the transformation of furnace arch, grate, air chamber, combustion belt, feeding system, and combustion control system, the boiler was suitable for burning pelletized biomass. The test results of energy efficiency and environmental protection showed that the boiler had high thermal efficiency, and the pollutants emissions met the standard requirements. |