提高梅钢二炼钢转炉炉龄生产实践  

PRODUCTION PRACTICE OF INCREASING CONVERTER LIFE IN No.2 STEELMAKING PLANT OF MEISTEEL

作　　者：杭国龙 Hang Guolong(Shanghai Meishan Iron and Steel Co.,Ltd.Nanjing 210039,China)

机构地区：[1]上海梅山钢铁股份有限公司,南京210039

出　　处：《冶金信息导刊》2021年第4期42-47,共6页Metallurgical Information Review

摘　　要：针对梅钢二炼钢转炉溅渣护炉工艺存在的问题,通过钢包加盖和钢包周转优化降低转炉终点温度27℃,空包传搁时间由改进前91.57 min降低到目前的78.94 min;利用模型对新工艺的造渣制度进行科学配比,能够稳定控制终渣碱度、(MgO)含量;转炉底吹维护优化和溅渣工艺优化,优化后的平均C-O下降了0.00049%,终点渣TFe下降了3.2%,全炉役转炉复吹比达到100%,炉龄突破10000炉。在实际应用时取得了良好的效果,在经济炉龄的基础上实现了高炉龄、全复吹率,同时也降低了碳氧积和终渣全铁含量。In view of the existing problems in slag splashing process of converter in No.2 Steelmaking Plant of Meishan Iron and Steel Co.,Ltd.,the end-point temperature of converter is reduced by 27℃through ladle capping and ladle turnover optimization,and the empty ladle interval time is reduced from 91.57 min before improvement to 78.94 min at present;The results show that the final slag basicity and MgO content can be controlled stably by the model;After optimization of bottom blowing maintenance and slag splashing process,the average C-O is reduced by 0.00049%,the TFE of final slag is reduced by 3.2%,the combined blowing ratio of the whole converter reaches 100%,and the furnace life exceeds 10000 heats.Good results have been achieved in practical application.On the basis of economic furnace life,high furnace life and total combined blowing rate have been achieved,while carbon and oxygen accumulation and total iron content in final slag have been reduced.

关 键 词：钢包加盖 溅渣护炉 炉龄 工艺优化 

分 类 号：TF7[冶金工程—钢铁冶金]