内燃式热风炉燃烧室结构优化数值模拟  

Numerical Simulation of Heating Wall Structure Optimization of Internal Combustion Hot Stove

作　　者：张锦炳 郑敬先[1] 于浩淼[1] 祝浩钧 苏福永 ZHANG Jinbing;ZHENG Jingxian;YU Haomiao;ZHU Haojun;SU Fuyong(Beijing Shougang Co.,Ltd.;University of Science and Technology Beijing)

机构地区：[1]北京首钢股份有限公司 [2]北京科技大学 [3]北京科技大学能源与环境工程学院

出　　处：《炼铁》2022年第4期59-62,共4页Ironmaking

摘　　要：提出了一种对内燃式热风炉燃烧室的结构进行优化的方法,即在燃烧室一定高度两端,增加眼角形扰流挡板,以降低热风炉烟气CO含量。以首钢股份3号高炉内燃式热风炉为研究对象,采用CFD模拟技术对燃烧室原始结构和优化结构进行了数值模拟,结果表明:燃烧室结构优化后,燃烧产生的CO主要集中在燃烧室两端的眼角处,加人挡板能降低烟气中CO含量,提高燃烧完全程度,燃烧室出口温度上升20K左右,烟气中CO含量降低了39.69%,0,含量也下降了43.78%。A method for optimizing the heating wallstructure of the internal combustion hot stove is put forth,that is,at both sides of the heating wall,eye-shaped spoilers are installed at a certain level to reduce CO content in flue gas of hot stove.A study is made on the intermal combustion hot stove of Shougang No.3 BF with original and optimized structure of the heating wall simulated numerically based on the CFD technology.The study result shows that the CO generated from combustion accumulates mainly in the corner of the eye-shaped spoilers at both sides of the heating wall after the heating wall structure is optimized,and installation of the spoilers reduces the CO content in the flue gas and promotes the complete combustion of the gas;the outlet temperature of the heating wall increases by about 20K,the average CO content and O,content in the flue gas falls by 39.69%and 43.78%respectively.

关 键 词：内燃式热风炉 燃烧室 结构优化 数值模拟 

分 类 号：TF578[冶金工程—钢铁冶金]