7 m焦炉调整空气过剩系数降低NO_(x)的实践  

Practice of NO_(x) reduction by adjusting air excess coefficient in 7 m coke oven

作　　者：张军 席玮城 严铁军[1] 秦云 胡英华 Zhang Jun;Xi Weicheng;Yan Tiejun;Qin Yun;Hu Yinghua(Wuhan Pingmei WISCO United Coking Chemical Co.,Ltd.,Wuhan 430082,China;Energy and Environmental Protection Department of WISCO,Wuhan 430082,China)

机构地区：[1]武汉平煤武钢联合焦化有限责任公司,武汉430082 [2]武汉钢铁有限公司能环部,武汉430082

出　　处：《燃料与化工》2025年第2期13-15,共3页Fuel & Chemical Processes

摘　　要：针对7 m焦炉立火道分段燃烧、废气循环、混合煤气加热的燃烧特点,从控制烟气氮氧化物的需求出发,对空气过热系数的选取进行了探讨,在此基础上对7 m焦炉空气过剩系数进行了调整,使得燃烧废气NO_(x)显著降低,为焦炉低NO_(x)燃烧要求下的热工调节提供了借鉴。According to the combustion characteristics of 7 m coke oven,such as staged combustion in vertical flues,waste gas circulation and mixed gas firing,the selection of air excess coefficient is discussed from the perspective of controlling the NO_(x) in flue gas.Thus the air excess coefficient of 7 m coke oven is adjusted accordingly so that the NO_(x) in the waste gas can significantly be reduced,which provides reference for thermal regulation to meet the requireme nt of low NO_(x) combustion in coke oven.

关 键 词：7 m焦炉 空气过剩系数 低NO_(x)燃烧 

分 类 号：TQ546[化学工程—煤化学工程]