Study On The Safe Operation And Energy Saving Of Power Plant Boiler With Diversified Circumstances Of Coal Quality

Safe and stable operation of power plant boiler is the guarantee of safe production of thermal power enterprise.For a long time,due to the price,transportation channel and power generation cycle and other reasons,the actual use of coal-fired power plant boiler and the design of coal quality deviation.The boiler output is reduced,the efficiency is reduced,the coal consumption of power generation is increased,and the ash corrosion of heating area is serious.This thesis study is based on a super supercritical boiler of a power plant,aiming at the problem of economic operation and safety of boiler,analyzing the effect on boiler operation of the change coal quality,through the analysis of the fire performance,burn performance and slagging performance,emission performance of mixed coal,coal by thermogravimetric analysis experiment,boiler coal blending test boiler combustion optimization test and other effective means of coal properties and coal blending properties to conduct a comprehensive control,put forward the scheme of coal blending combustion reasonably,solve coal changeable safe operation and energy saving problem under the environment of power plant boiler.As we all know,in the actual operation of the boiler,the deviation of the coal quality from the design value,will cause many problems.One of the effective ways to solve these problems is to adopt a reasonable coal blending technology.In the process of blending coal,the operating personnel must fully grasp the combustion performance of each single coal to get mixing schemes of different coal types.Reasonable scheme about blended coal combustion needs to make the coal samples fire at lower temperature,realize continuous combustion to get a completely combustion,at the same time,the harmful components of combustion products that be controlled in a reasonable range,reduce the heating surface damage and pollutant emissions as far as possible.The heat is released by the combustion of the fuel,establishing the thermal load in furnace to meet the heat transferring requirements,to make the boiler output meet the requirements of power plant operation.