太钢4350m^3高炉炉体热负荷  

Furnace body heat load of TISCO 4350 m^3 blast furnace

作　　者：闫魁红[1,2] 张建良[1] 祁成林[1] 左海滨[1] 刘文文[2] 

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083 [2]山西太钢不锈钢股份有限公司炼铁厂,太原030003

出　　处：《北京科技大学学报》2010年第4期509-514,共6页Journal of University of Science and Technology Beijing

基　　金：国家自然科学基金资助项目(No.2006BAE03A01);北京教育委员会共建项目专项资助

摘　　要：通过分析太钢4350m3高炉(5#高炉)炉缸以上冷却系统的设计特点,研究其在高煤比、高产量情况下炉内煤气流分布对炉体热负荷的影响.结果表明:太钢5#高炉的边缘气流指数W值控制在0.55左右;中心气流指数Z值应控制在8.8左右;5#高炉下部炉腰炉腹的热负荷较为稳定,而炉身的中上部稳定性较差;5#高炉的热负荷还有降低的潜力,热负荷控制在10～120GJ.h-1范围4350m3高炉仍可稳定操作.Through analyzing design features of the cooling system above the hearth in TISCO 4 350 m3 blast furnace（BF）,the effect of gas flow distribution on the heat load of the blast furnace was studied in the case of high pulverized coal injection rate and high yield.The results of No.5 blast furnace were presented.The value of edge gas flow index W should be controlled at around 0.55,the value of center gas flow index Z should be controlled at around 8.8,and the heat load on the belly and the bosh of the blast furnace is relatively stable but in the upper part of the stack is bad.There is a potential to reduce the heat load of No.5 blast furnace.When the heat load is controlled in the range of 10 to 120 GJ·h^-1,the 4 350 m3 blast furnace can still be stably operated.

关 键 词：高炉 操作制度 热负荷 气流分布 

分 类 号：TF531[冶金工程—钢铁冶金] TF543