230t转炉全炉役复吹实践  

Practice of Top Blowing-Bottom Purging with Full Campaign in Converter

作　　者：谭喜阳 张利锋[2] 崔辉[2] 张龙[2] 全勇 雷中兴 TAN Xiyang;ZHANG Lifeng;CUI Hui;ZHANG Long;QUAN Yong;LEI Zhongxing(Wugang Refractory Co.,Ltd.,Wuhan 430080,China;Wuhan Ironand Steel Co.,Ltd.,Wuhan 430080,China)

机构地区：[1]武汉钢铁集团耐火材料有限责任公司,湖北武汉430080 [2]武汉钢铁有限公司,湖北武汉430080

出　　处：《山东冶金》2024年第3期5-6,11,共3页Shandong Metallurgy

摘　　要：在转炉平均出钢碳为0.042%、平均出钢温度1 644℃工艺条件下,通过调整底吹供气布局、供气砖合理选型、优化炼钢操作、动态控制熔池液面等措施,实现了230 t转炉全炉役复吹。使用寿命达到7 525炉,碳氧积控制在0.002 27,终点钢水氧含量由595×10^(-6)下降至546×10^(-6),全炉役吨钢氧气耗量下降1.9 m^(3),吹炼时间减少了33 s。By adjusting the distribution of bottom purging position,designing the bottom shape,optimizing steelmaking operations,and dynamically controlling the bath level,the service life of 230 tons converter with combined bottom purging were achieved at 7525 heats.An average tapping carbon of 0.042%and tapping temperature of 1644℃ in the 230 tons converter.The CO product is controlled at 0.00227,and the oxygen content in molten steel is reduced from 595×10^(-6) to 546×10^(-6).The oxygen consumption per ton of steel in the entire campaign has decreased by 1.9 m.The blowing duration has been reduced by 33 seconds.

关 键 词：转炉 供气砖 碳氧积 氧含量 

分 类 号：TF713[冶金工程—钢铁冶金]