Economic benefit assessment method for combustion multi-coal for heat-engine plant boiler

The invention belongs to the technical field of thermal power, and particularly relates to an economic benefit assessment method for combustion multi-coal for a heat-engine plant boiler. The economicbenefit assessment method for combustion multi-coal for a heat-engine plant boiler comprises the steps: calculating the economic benefits of blending combustion at a certain blending combustion ratio,on the basis of the coal quantity of each coal, the unit price of each coal, the power supply coal consumption before and after blending combustion, the power supply coal consumption under influenceof main steam desuperheating water, the power supply coal consumption under influence of reheating desuperheating water, and the influence cost of desulfurization system material increase. The economic benefit assessment method for combustion multi-coal for a heat-engine plant boiler can stabilize the coaly of the heat-engine plant, and can guarantee safe and economical operation of the boiler. 本发明属于火电技术领域，尤其涉及种火电厂锅炉燃用多煤种经济