酒钢5#高炉冷却壁母体冷却区修复实践  

Practice of Repairing the Cooling Zone of the Parent Cooling Wall of 5#Blast Furnace in Jiusteel

作　　者：张继光 朱刚 ZHANG Jiguang;ZHU Gang(Gansu Jiu Steel Group Hongxing Iron&Steel Co.Ltd.,Ironmaking Plant,Jiayuguan 735100,China)

机构地区：[1]甘肃酒钢集团宏兴钢铁股份有限公司炼铁厂,甘肃嘉峪关735100

出　　处：《甘肃冶金》2024年第4期72-74,共3页Gansu Metallurgy

摘　　要：酒钢宏兴炼铁厂5#高炉生产运行中发现部分冷却壁水温差偏高,对应水管流量未发生变化,高炉停炉后发现冷却壁水管完好。为节约高炉大修投资,缩短大修时间,制定了对冷却壁磨损母体裸露水管位置进行堆叠焊接填补修复的方法,修复后采用半干法喷涂,可有效保护冷却壁的预埋水管,延长冷却壁母体及水管使用寿命,保证高炉安全稳定运行。During the operation of 5#blast furnace in Jiusteel Hongxing Ironmaking Plant,it was found that the water temperature difference of some cooling walls was high,and the corresponding water pipe flow did not change,and the cooling wall water pipes were found to be intact after the blast furnace was shut down.In order to save the investment of blast furnace overhaul and shorten the overhaul time,a method of stacked welding was developed to fill and repair the exposed water pipes of the wear mother of the cooling walls,and semi-dry spraying was adopted after repair.It can effectively protect the embedded water pipe of the cooling wall,extend the service life of the cooling wall parent and water pipe,and ensure the safe and stable operation of the blast furnace.

关 键 词：高炉大修 冷却壁母体修复 焊接填补法 堆叠修复法 延长冷却壁寿命 

分 类 号：TF573[冶金工程—钢铁冶金]