沙钢5800m^(3)高炉炉芯温度异常下降的诊断及治理  

Diagnosis and Control of Abnormal Temperature Drop in Shagang's 5800 m^(3) BF Core

作　　者：回新冬 赵华涛 杜屏 张少波 HUI Xindong;ZHAO Huatao;DU Ping;ZHANG Shaobo(Institute of Research of Iron&Steel,Jiangsu province(Shagang),Zhangjiagang 215625,Jiangsu,China)

机构地区：[1]江苏省(沙钢)钢铁研究院,江苏张家港215625

出　　处：《炼铁》2024年第4期1-6,共6页Ironmaking

摘　　要：针对沙钢5800m^(3)高炉炉芯温度异常下降151℃的状况,基于铁前一体化管控平台,采用大数据进行了分析诊断。结果表明,炉芯温度对高炉操作参数变化响应的滞后周期为3~5天,造成炉芯温度异常下降的主要原因,一是烧结矿质量的异常波动,二是高炉布料矩阵调整后边沿矿焦比的显著降低。通过采取加强原燃料质量管理、控制人炉碱金属负荷、优化上下部操作制度及规范高炉出铁作业等治理措施,5800m高炉整体人炉碱金属负荷降低至2.88kg/t,炉芯温度止跌回升,从最低227℃上升到450℃,主要技术经济指标明显改善。The temperature of Shagang's 5800 m^(3)BF core drops by 151℃abnormally.A big data analysis is carried out based on the integrated management plaform of cast house operation.It is seen from the result that the response of BF core temperature to the change of BF operating parameters delays 3-5 days,and the said abnormal temperature drop is mainly induced by abnormal fluctuation of the sinter quality and the significant decrease of coke rate at furnace edge after the furnace distribution matrix is adjusted.By strengthening the quality management of raw materials and fuel,controlling the basic metal load in the furnace,optimizing the burden distribution and the blasting operation system,and normalizing the tapping activities,the overall basic metal load of the furnace declines to 2.88kg/t,the core temperature turns up from the lowest 227℃to 450℃,and the main techno-economic indicators improve significantly.

关 键 词：特大型高炉 炉芯温度 烧结矿 碱金属负荷 边沿矿焦比 

分 类 号：TF53[冶金工程—钢铁冶金]