超大型高炉风口焦炭取样分析研究  

Research on coke sampling in tuyere of a super-large blast furnace

作　　者：竺维春 张卫东 王冬青 张贺顺[2] 沈海波[2] 

机构地区：[1]首钢技术研究院,北京10043 [2]首钢京唐公司,河北唐山063200

出　　处：《钢铁研究》2014年第2期9-13,共5页Research on Iron and Steel

摘　　要：为恢复炉况及探讨超大型高炉冶炼规律,对首钢京唐公司高炉进行了风口焦炭取样分析,研究了其入炉焦炭热强度与焦炭反应性、焦炭冷强度与焦炭耐磨强度之间的关系;探明了风口焦炭的粒度、劣化度及渣铁滞留量;探索了渣铁滞留量与渣铁体积、风口焦炭粒度、煤比及炉渣二元碱度的关系;分析了炉缸径向焦炭粒度分布、风口前高透气性区长度、炉缸透气性等;根据上述研究结果,提出了高炉操作建议并得到应用。实践结果表明:风口焦炭取样分析可以作为高炉操作调整的重要参考。To deal with abnormal operations of blast furnace and explore the smelting principle of large blast furnace, coke samples were taken from the tuyere zone of a blast furnace of Shougang Jingtang Iron and Steel United Co. , Ltd. The relationships of CSR and CRI, M40 and M10 of coke charged into blast furnace were analyzed. The size of tuyere coke, the degree of coke deterioration, and the amount of slag and iron retention were ascertained. The relationships of retention amount vs slag and iron volumes, tuyere coke size, coal ratio and w（CaO）/w（Si02 ）of slag were studied. The size distribution of tuyere coke along the radial direction, the length of high permeability zone, the hearth permeability etc. were analyzed. Suggestions for adjusting operations of the blast furnace were put into use based on the study. Results showed that the research on tuyere coke sampling can provide useful references to adjust blast furnace operations.

关 键 词：超大型高炉 风口焦炭 布料 

分 类 号：TF526.1[冶金工程—钢铁冶金]