高风温下热风炉操作对蓄热室温度分布的影响  

Influence of operating regulation of hot blast stove on temperature distribution of regenerator in high blast temperature

作　　者：陈杉杉[1] 倪萍[2] 国宏伟[1] 张建良[1] 杨天钧[1] 

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083 [2]首钢集团

出　　处：《冶金自动化》2012年第3期44-48,共5页Metallurgical Industry Automation

基　　金：教育部博士点学科专项科研基金资助项目(20090006120004)

摘　　要：提高风温过程中,热风炉蓄热室温度分布将产生相应的变化。本文针对首钢迁安钢铁有限责任公司2号高炉热风炉,数值模拟高风温下各种热风炉操作引起的蓄热室温度分布变化。研究结果表明:烟气温度每提高10 K,蓄热室高温区(不小于1 573 K)向下扩展0.25 m;烟气速度每升高1 m/s,高温区将向下扩展0.83 m,烟气出口温度提高25 K;高风温条件下应增加硅砖高度,并通过加强中温区格子砖的热容和热导率,提高中温区的蓄热量和热交换效率。With increasing blast temperature, distribution of temperature in regenerative chamber of hot blast stove will be changed correspondingly. Numerical simulation of temperature change of hot blast stove of Qiangang No. 2 blast furnace, Shougang Group, was done under high temperature and va- rious operations in the paper. As demonstrated by results ,the high temperature zone （ ≥ 1 573 K）of re- generative chamber is extended downward by 0.25 m with temperature increased by 10 K; the high temperature zone of regenerative chamber is extended downward by 0.83 m and output exhaust gas temperature is increased by 25 K with exhaust gas speed elevated by 1 m/s;the height of silica bricks should be lifted, heat capacity and heat conductivity checkered bricks in intermediate temperature zone should be strengthened in order to increase heat quantity and heat exchange efficiency under high tem- perature condition.

关 键 词：热风炉 蓄热室 格子砖 温度分布 数值模拟 

分 类 号：TF578[冶金工程—钢铁冶金]