复吹转炉终点强搅拌下的炉内回磷行为研究  

Study on the behavior of rephosphorizing by strong stirring in end-point for BOF

作　　者：丛铁地 刘书超 张艳龙 彭飞 董志鹏 Cong Tiedi;Liu Shuchao;Zhang Yanlong;Peng Fei;Dong Zhipeng(Steel-making Plant of Benxi Iron and Steel(Group)Co.,Ltd.)

机构地区：[1]本溪钢铁集团公司炼钢厂,辽宁省本溪市117000

出　　处：《冶金能源》2020年第2期12-14,47,共4页Energy For Metallurgical Industry

摘　　要：复吹转炉炉役前期炉内钢水会发生较大幅度回磷现象,使得复吹转炉高拉碳生产方式影响冶炼低磷钢。通过对复吹及非复吹转炉冶炼数据的对比,分析得出复吹的强搅拌作用导致了炉内回磷,制定并且应用了多项补救措施,使得复吹转炉平均回磷量接近无复吹转炉水平,效果显著。In the early stage of the reblowing furnace,a large amount of phosphorus return will occur in the steel in the furnace,so that the high-pull carbon production method of the reblowing converter will affect the smelting of low-phosphorus steel.By comparing the smelting data of the re-blowing converter and the non-re-blowing converter,it is analyzed that the strong stirring effect of the re-blowing leads to the occurrence of phosphorus return phenomenon in the furnace,and a number of remedial measures were formulated and applied,making the average amount of phosphorus back to the re-blowing converter close to the level of the non-re-blowing converter.The effect was remarkable.

关 键 词：复吹转炉 高拉碳 等待出钢 回磷 

分 类 号：TF713[冶金工程—钢铁冶金]