CAJ | 학술논문

采用新一代水平煤粉浓淡燃烧器对300 MW机组贫煤锅炉低进行改造，在主燃区上方安装4层燃尽风喷口，采用燃料水平分级和燃尽风空气垂直分级耦合而成的立体分级技术降低NOx 的排放量。结果表明，氮氧化物的排放量有了明显的减少，浓度降幅在40％~50％；当采取倒塔配风方式运行时，降低氮氧化物效果最为明显，且锅炉的热效率也略有提高。
채용신일대수평매분농담연소기대300 MW궤조빈매과로저진행개조，재주연구상방안장4층연진풍분구，채용연료수평분급화연진풍공기수직분급우합이성적입체분급기술강저NOx 적배방량。결과표명，담양화물적배방량유료명현적감소，농도강폭재40％~50％；당채취도탑배풍방식운행시，강저담양화물효과최위명현，차과로적열효솔야략유제고。
A new kind of low NOx HBC burner was used for the modification of 300 MW lean coal boiler. 4 layer burning wind vents were installed above the primary combustion zone,and three-dimensional separation technology that is fuel horizontal separation coupling with over-fire air vertical separation was adopted to reduce NOx emissions. The transformation result showed that the nitrogen oxide emission has decreased significantly,and concentration de-cline is about 40% ~50%. NOx decrease is much more obvious when operating at the pour tower air distribution mode and the thermal efficiency of boiler also increases slightly.