Abstract: The main influencing factors of ladle life were analyzed and discussed,such as materials,masonry methods,slag composition,refining process,steel holding time,and temperature control.The optimization of the ladle bottom masonry methods,the improvement of materials of ladle bricks,slag line bricks and seat blocks,and the improvement of the slag refining process were summarized.Compared with that in 2015,the ladle overhaul life increases from 102 to 201 heats at present,the ladle minor repair life increases from 51 to 100 heats,the average corrosion rate of ladle wall bricks reduces from 1.47 to 0.67 mm per heat,and that of slag line bricks reduces from 3.27 to 1.75 mm per heat,realizing the longevity of ladle refractories.

Key words: ladle, slag line, carbon-free ladle bricks, ladle life

摘要： 分析了影响钢包寿命的主要因素,包括材质、砌筑方式、炉渣成分、精炼工艺、盛钢时间及温度控制等,讨论了这些因素对钢包寿命的影响,总结了钢包包底砌筑方式的优化,钢包砖、渣线和座砖材质的改进,以及精炼造渣工艺的改进等。至此,与2015年相比,钢包大修寿命从102次提升到现在的201次,钢包小修寿命从51次提升到现在的100次,包壁砖的平均侵蚀速率从每次1.47 mm降低至现在的0.67 mm,渣线的平均侵蚀速率从每次3.27 mm降低至现在的1.75 mm,实现了钢包耐火材料的长寿化。

关键词: 钢包, 渣线, 无碳钢包砖, 钢包寿命