唐钢新区3号高炉两段式炉身生产操作浅析  

Operation of No.3 BF with 2-Sectional Stack in Tangsteel New Area

作　　者：贾彬 高冰 单庆林 苑洪滨 李振铠 JIA Bin;GAO Bing;SHAN Qinglin;YUAN Hongbin;LI Zhenkai(Technology Center of HBIS Tangsteel,Tangshan 063000,Hebei,China)

机构地区：[1]河钢集团唐钢公司技术中心,河北唐山063000

出　　处：《炼铁》2024年第1期21-24,29,共5页Ironmaking

基　　金：唐山市重点研发计划项目(22150233J)。

摘　　要：唐钢新区3号高炉针对高球比炉料结构及冶炼特点,炉型设计采用两段式炉身结构,上段炉身角为79.56°,下段炉身角为82.58°。两段式炉身结构具有能适应高球比冶治炼、有利于发展边沿气流、削弱上部调剂效果、降低上部压差等冶炼特点。3号高炉现阶段入炉球团矿比例在40%左右,生产实践表明:炉型采用两段式炉身结构,能有效缓解高球比冶炼时,因球团矿还原膨胀导致的透气性差的问题;但是对大矿批冶炼不利,应选择合适的布料矩阵,随着入炉球团矿比例的提升,需加强对煤气流的控制,尤其是边沿气流的控制。No.3 BF in Tangsteel New Area is designed with 2-sectional stack considering its burden mix(high pellet percentage)and smelting characteristics.The angle of the stack upper section is 79.56°and that of the lower section 82.58°.Such a design is adaptive to furnace smelting under high pellet percentage,facilitates the development of edge gas flow,but weaken the conditioning effect of burden distribution and narrows the pressure difference of the upper part.Nowadays,the pellets charged to the furnace accounts for about 40%,and the furnace production result shows that the design of 2-sectional stack relieves the problem of poor gas permeability caused by pellet reduction-related expansion when the furnace is operating with high pellet Percentage;However,it is not friendly for the case of large batch-based BF smelting,where therefore,it is required to select a suitable distribution matrix as the charged pellet percentage increases,and enhance the gas flow control,especially the edge gas flow.

关 键 词：高炉 两段式炉身 高球比 矿批 煤气流 

分 类 号：TF54[冶金工程—钢铁冶金]