A review of blended-coal combustion technologies for power boilers

In this paper,the application background of blended-coal combustion technologies for power boilers was introduced,and the characteristics,research progress and application situation of the technologies were discussed.The analysis indicated that blended-coal combustion technologies are an important solution to cope with the short supply of coal for electricity generation.The technology based on blending different coals before they are fed into burners has been widely studied and applied.But much research work is still needed on the technology based on grinding different coals in different mills and mixing coals directly in the furnace.It is also necessary to develop an advanced system for boiler performance and electricity-generation costs prediction,and for coal-blending scheme optimization.