文档介绍：节能技术
能源研究与管理 2019⑵
窑03窑
DOI : -
燃烧器改造对低氮燃烧效果影响
李士峰
(大唐河北新能源 (长北)有限责任公司，河北张家口 075000
摘 要：为解决储仓式制粉系统、四角切圆燃烧方式的 300MW机组锅炉燃烧贫煤时炉膛出口排放
高(900〜1 000 mg/Nm)的问题，在进行燃烧器改造后炉膛出口排放 NO质量浓度降至550 mg/Nm3左右；国家和
地方环保标准提高后需进一步降低，遂又进行了燃烧器三次风重新布置、部分三次风引入主燃烧区进行助燃改造， mg/Nm3左右，为同类型锅炉低氮燃烧改造提供了借鉴意义。
关键词：仓储式制粉；四角切圆燃烧；三次风；低氮燃烧
中图分类号： 文献标志码：A 文章编号：1005-7676 (2019) 02- 0103 - 04
Influence of Burner Alteration of Low Nitrogen Combustion Effect
LI Shifeng
(Datang Hebei New Energy(Zhangbei) Co.,Ltd., Zhangjiakou 075000, Hebei, China)
.'上汇：二：： To solve the NO. concentration is higher (900-1 000 mg/Nm3) when burn lean coal on storage type pulverizing system, four way tangential firing boiler of 300 MW, the chamber of a stove or furnace outlet NO. concentration to 550 mg/Nm after burner alteration. National and local environmental standards improve need to further reduce, after tertiaryair then ran a burner wind to rearrange, part tertiaryair into the main combustion zone combustion-supporting renovation, the chamber of a stove or furnace outlet NO. concentration down to about 480 mg/Nm3, low nitrogen combustion retrofit for similar boiler provides reference.
Kdx middle storage pulverizing system; tangentially combustion; te