复吹转炉脱磷工艺研究及应用  

Study and Application on Dephosphorization Process of Combined Blown Converter

作　　者：王念欣 李海峰 董慧 王成镇 张亮 WANG Nian-xin;LI Hai-feng;DONG Hui;WANG Cheng-zhen;ZHANG Liang(Research Institute of Shangdong Iron and Steel Group Co.,Ltd.,Jinan,Shandong 250101,China;Rizhao Co.,Ltd.,Shandong Iron and Steel Group,Rizhao,Shandong 276800,China)

机构地区：[1]山东钢铁集团有限公司研究院,山东济南250101 [2]山东钢铁集团日照有限公司,山东日照276800

出　　处：《云南冶金》2023年第4期151-155,共5页Yunnan Metallurgy

摘　　要：针对复吹转炉吹炼及终点脱磷率低、出钢回磷等问题,采取生产条件保证、吹炼过程优化、弱脱氧合金化、钢包扒渣等措施,达到了转炉出钢终点磷含量≤0.005%、钢包磷含量≤0.006%的控制水平,取得了显著的实践效果。For problems of blowing of combined blown converter,low end point dephosphorization rate,steel tapping and phosphorus returning and so on,the following measures were adopted,such as guarantee of production conditions,optimization of blowing process,alloying of weak deoxidation,slagging-off of steel ladle and so on,then the end point phosphorous content of steel tapping of combined blown converter can reach to≤0.005%,the phosphorus content of steel ladle can reach to≤0.006%,the remarkable practical results have been achieved.

关 键 词：铁水预处理 钢包吹氩 炉渣碱度 脱磷 弱脱氧 

分 类 号：TF748.215[冶金工程—钢铁冶金]