Practice on solving problem of blast furnace shell rising in Zenith Steel Group Co., Ltd.
LU Wei-qiang1, ZHANG Jun-jie1, DUAN Guo-jian2, XU Dong-sheng1, PEI Yuan-dong1
1. The Second Ironmaking Plant, Zenith Steel Group Co., Ltd., Changzhou 213011, Jiangsu, China; 2. Ironmaking and Storage and Transportation Institute of MCC, China Metallurgical Jingcheng Engineering Technology Co., Ltd., Beijing 100176, China
Abstract:The rise of blast furnace shell is a difficult problem faced by some blast furnaces in iron and steel enterprises in recent years, and controlling the rise of blast furnace shell is of great significance to a long life, safe and stable operation of blast furnaces. Aiming at the problem of furnace shell rising in Zenith blast furnace, based on the calculation of pressure vessel blind plate force, combined with long-term analysis and treatment practice, the key reason of furnace shell rising is determined, which is the blind plate force caused by furnace pressure; and five steps of furnace shell rising are given: deformation of furnace bottom plate-deformation of refractory in furnace-crack between refractories-harmful element enrichment along the crevice-furnace shell gradually grows. On this basis, the double bottom slab structure was developed and successfully applied in several blast furnaces of Zenith Iron and Steel Co., Ltd. to solve the problem of furnace shell rising. Finally, the focus of exploring and the reasons for the rise of blast furnace shell should be shifted from raw materials, operation, construction, and refractory materials to the strength of blast furnace bottom plate.
卢维强, 张俊杰, 段国建, 徐东升, 裴元东. 解决中天钢铁高炉炉壳上涨实践[J]. 钢铁, 2020, 55(2): 42-47.
LU Wei-qiang, ZHANG Jun-jie, DUAN Guo-jian, XU Dong-sheng, PEI Yuan-dong. Practice on solving problem of blast furnace shell rising in Zenith Steel Group Co., Ltd.. Iron and Steel, 2020, 55(2): 42-47.
[1] 张福明. 我国高炉炼铁技术装备发展成就与展望[J]. 钢铁, 2019, 54(11): 1. (ZHANG Fu-ming. Prospect and development achievements of blast furnace ironmaking technologies and equipments in China[J]. Iron and Steel, 2019, 54(11): 1.) [2] 李洋龙,程树森,王颖生.高炉炉底密封板上翘机理及预防措施[J].钢铁,2014,49(12):18. (LI Yang-long, CHENG Su-sen, WANG Ying-sheng. Mechanism and preventive measures of upturned blast furnace bottom sealing plate[J]. Iron and Steel, 2014,49(12):18.) [3] 邱国, 丁时明, 凌志宏.韶钢6#高炉炉体上涨原因分析与处理[C]// 2008年全国中小高炉炼铁学术年会. 青岛:中国金属学会, 2008:238. (QIU Guo, DING Shi-ming, LING Zhi-hong. Cause analysis and treatment of rising of 6# blast furnace body in Shaoguan iron and steel Co.[C] // 2008 National Academic Annual Meeting on Small and Medium Blast Furnace Ironmaking. Qingdao: The China Society for Metals, 2008:238.) [4] 项钟庸,姜曦. 用评价高炉生产效率的新方法研讨大型高炉生产状况[J]. 钢铁, 2018, 53(8): 38. (XIANG Zhong-yong,JIANG Xi. Analysis of production indexes of large BF by new evaluation method for production efficiency[J]. Iron and Steel, 2018, 53(8): 38.) [5] 朱兴华,陈冬,侯玉伟. 济源钢厂2号高炉设计特点及实践[J]. 中国冶金, 2017, 27(1): 41. (ZHU Xing-hua,CHEN Dong,HOU Yu-wei. Design features and practice of No.2 BF in Jiyuan Steel Plant[J]. China Metallurgy, 2017, 27(1):41.) [6] 邓云飞. 中国现代高炉炼铁发展简介[J].山东工业技术,2017(12):91. (DENG Yun-fei. Brief introduction to the development of modern blast furnace ironmaking in China[J]. Shandong Industrial Technology, 2017(12):91.) [7] 张寿荣, 银汉. 中国高炉炼铁的现状和存在的问题[J]. 钢铁, 2007, 42(9):1. (ZHANG Shou-rong, YIN Han. Current situation and exisiting problems of blast furnace ironmaking in China[J]. Iron and Steel,2007, 42(9):1.) [8] 王瑾洋, 张文政. 高炉炼铁节能降耗及资源合理利用技术初探[J]. 山东工业技术, 2017(12):62. (WANG Jin-yang, ZHANG Wen-zheng. Preliminary study on energy saving and consumption reduction and rational utilization of resources in blast furnace ironmaking [J]. Shandong Industrial Technology, 2017(12):62.) [9] 张恒,张建良,焦克新,等. 高炉板壁结合冷却器破损原因解析[J]. 钢铁, 2018, 53(8): 28.(ZHANG Heng,ZHANG Jian-liang,JIAO Ke-xin,et al. Analysis on damage cause to stave-plate compound cooling system of a commercial blast furnace[J]. Iron and Steel, 2018, 53(8): 28.) [10] 黄发元,姜曦. 高炉炉底板边缘为何上翘?如何应对?[N].中国冶金报,2018-01-04.(HUANG Fa-yuan, JIANG Xi. Why does the edge of the bottom plate of the blast furnace rise? How to deal with it? [N]. China Metallurgical News, 2018-01-04.) [11] 徐川,王锡涛.优化管理提升马钢高炉长寿水平[J].安徽冶金科技职业学院学报,2016,26(12):97. (XU Chuan, WANG Xi-tao. Optimizing management to improve the longevity level of blast furnace in masteel[J].Journal of Anhui Vocational College of Metallurgical Science and Technology, 2016,26(12):97.) [12] 王世达. 青岛特钢开炉经验及生产实践[J]. 中国冶金, 2018, 28(11): 40. (WANG Shi-da. Experience of blow-in and production practice of Qingdao Special Steel[J]. China Metallurgy, 2018, 28(11): 40.)
[13] 蒋鹏程,王旭,张延杰,等.超大型油罐罐壁与底板应力有限元仿真分析[J].兰州交通大学学报,2018,37(4):7.(JIANG Peng-cheng, WANG Xu, ZHANG Yan-jie,et al. Finite element analysis of stress on wall and floor of super large oil tank[J].Journal of Lanzhou Jiaotong University, 2018,37(4): 7.) [14] 但泽义,段斌,薛尚铃,等.炼铁工艺炉壳体结构技术规范. GB/T 50567-2010[S]. 北京:中国标准出版社,2010.(DAN Ze-yi, DUAN Bin, XUE Shang-ling, et al. Technical Specification for Shell Structure of Ironmaking Process Furnace. GB/T 50567-2010[S]. Beijing:China Standard Press, 2010.) [15] 卢维强,张俊杰,陈慧,等.一种抑制炉壳上涨的高炉炉底结构:中国,CN208218890U[P]. 2018-12-11. (LU Wei-qiang, ZHANG Jun-jie, CHEN Hui, et al. Bottom Structure of Blast Furnace for Restraining Shell Rising:China, CN208218890U[P].2018-12-11.)