再燃燃料超细煤粉燃尽特性的实验研究  

Experiment Study of Burnout About Micronized Coal as Reburning Fuel

作　　者：代纪邦[1] 金晶[1] 李立[1] 李珊珊[2] 樊俊杰[1] 

机构地区：[1]上海理工大学动力工程学院,上海200093 [2]浙江大学网新机电有限公司,浙江杭州310007

出　　处：《锅炉技术》2007年第1期25-27,73,共4页Boiler Technology

基　　金：上海理工大学博士启动基金(X619)

摘　　要：超细煤粉作为燃料分级燃烧技术中的再燃燃料具有可行性,可有效降低NOx的排放,由于再燃区和燃尽区的反应比较复杂,存在再燃燃料燃尽效果不稳定的现象。从煤种、粒度、过量空气系数、氧浓度、炉膛温度等几个因素分析,认为针对不同的煤种,合适的空气流量和燃尽区炉膛温度是提高再燃燃料燃尽的必要条件。Pulverized coal reburning technology is one of the key technology in power plant.Micronized coal as reburn fuel is feasible in the fuel-staged combustion , which can reduce NOx emission effectively. Existing unstable phenomenon of burnout because of complexity about micronized coal combusting in reburning area and burnout area . The paper analyses some factors , such as coal category, size, over-air coefficient, oxygen-consistence and temperature of hearth . So, rational air-flux and temperature of hearth in burnout zone are necessary in order to increase burnout of reburning fuel about different coal.

关 键 词：超细煤粉 再燃燃料 燃尽 

分 类 号：TK229.6[动力工程及工程热物理—动力机械及工程]