Study of Thermal Calculation for 350MW Boiler to Burn Mixture of Pulverized Coal and Blast Furnace Gas

摘要

It is usually happened that the steam temperature different from the design value in many power plants' boilers. To resolve the problem that the main steam temperature and reheat steam temperature being low at 3# boiler oi Baosteel power plant, which burned mixture of pulverized coal and blast furnace gas, a thermal calculation program is designed and calculated for the boiler. Through changing the operating condition respectively, the results of thermal calculation are obtained. The factors affecting main steam temperature, reheat steam temperature and the gas temperature are discussed. Some conclusions are provided for improving the steam temperature property, resolving the problem of steam temperature being low and optimizing the operation of the boiler.