| Low NOx combustion in a power plant for the transformation of the 9th boiler, there is a concentration of NOx emission is still high, the rate of unit load response is poor, then the larger main steam temperature change range, high exhaust gas temperature, the more unburned carbon high, low boiler combustion efficiency and other issues. This article is adjusted by taking the air classification air distribution test results, under different load, reducing the best way NOX emission concentration with the wind; in addition, the use of boiler flue gas recirculation system itself, so that the concentration of NOX emissions from the boiler concentration the initial 359.3 mg/Nm3 down to 213.27 mg/Nm3, REDD significant effect, meet environmental requirements. Combined boiler actual situation, analyze the reasons for the disintegration of its problems, has taken to optimize the fuel control system to optimize a secondary air and perimeter air control systems and optimization of coal Opening the way and a series of low-input measures, to some extent, improve the unit load response rate and boiler efficiency and solve the steam temperature changed much other related issues, and achieved good economic benefits. |
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