不同煤质对锅炉排放废气的影响特征

Research on the Influence Characteristics of Different Coal Quality on Boiler Exhaust Gas

通过三家工业企业的燃煤锅炉对3种不同煤质燃烧后产生的大气污染物的监测数据,计算得出各种煤质燃烧后产生的大气污染物排污系数。结果表明,烟尘浓度与煤质灰分含量有关,SO_(2)浓度与燃煤含硫量有关,但NO_(x)浓度与煤质中的氮含量关系不大。锅炉烟尘排污系数小于全国污染源普查系数,SO_(2)和NO_(x)的排污系数与普查结果基本一致。

Based on the monitoring data of the coal-fired boilers of three industrial enterprises on the atmospheric pollutants produced after the combustion of three different coal qualities,the emission coefficients of the atmospheric pollutants produced after the combustion of various coal qualities are calculated.The results show that the concentration of soot is related to the ash content of coal,and the concentration of SO_(2) is related to the sulfur content of coal,but the concentration of NO_(x) has little to do with the nitrogen content of coal.The boiler smoke and dust emission coefficient is less than the national pollution source census coefficient,and the SO_(2) and NO_(x) emission coefficients are basically consistent with the census results.