包钢5^(#)高炉炉缸侧壁温度升高的分析与防治  

Analysis and Prevention and Treatment for Rise of Side Wall Temperature of 5^(#)Blast Furnace Hearth of Baotou Steel

作　　者：高向洲 张志斌[1] 张利[2] 马祥[1] 于恒亮 郭卓团[1] Gao Xiang-zhou;Zhang Zhi-bin;Zhang Li;Ma Xiang;Yu Heng-liang;Guo Zhuo-tuan(Iron-making Plant of Inner Mongolia Baotou Steel Union Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China;Manufacturing Dept.of Inner Mongolia Baotou Steel Union Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China)

机构地区：[1]内蒙古包钢钢联股份有限公司炼铁厂,内蒙古包头014010 [2]内蒙古包钢钢联股份有限公司制造部,内蒙古包头014010

出　　处：《包钢科技》2024年第3期9-13,共5页Science & Technology of Baotou Steel

摘　　要：高炉炉缸是制约高炉寿命达到15年以上的关键部位,也是决定高炉寿命的关键因素。针对5^(#)高炉炉缸侧壁温度升高,通过对炉缸侵蚀机理的研究,判定铁水环流加剧、炭砖侵蚀严重是炉缸侧壁温度升高的直接原因。5^(#)高炉通过采取制定预警标准、强化日常管理、优化铁口深度标准与加强维护、根据三级预警调整生产操作参数等防治措施,炉缸侧壁标高8.663 m处铁口区温度均下行,停炉前基本稳定在350~450℃,处于可控范围。The blast furnace hearth is the key part that restricts blast furnace campaign to over 15 years and the key factor determining blast furnace campaign.The direct causes for temperature rise on side wall of hearth are determined to be aggravated circulation of molten iron and severe erosion of carbon brick through studying erosion mechanism of hearth aiming at the rise of side wall temperature of 5^(#)blast furnace hearth.The temperature at iron notch of elevation of 8.663 m for side wall of hearth is decreased and basically stabilized at 350~450℃before blowing out,which is within controllable range through taking such preventing measures as setting the early warning standards,strengthening daily management,optimizing standards of depth of iron notch and strengthening maintenance as well as adjusting production and operation parameters based on three-grade early warning.

关 键 词：高炉长寿 炉缸 侧壁温度 预警管控 铁口深度 

分 类 号：TF54[冶金工程—钢铁冶金]