半钢冶炼过程回硫控制研究  

Research on Resulfurization Control during Converter Tapping Process

作　　者：卿家胜[1,2] 段向东[3] 肖明富 刘青[1,2] 

机构地区：[1]北京科技大学冶金与生态工程学院钢铁冶金新技术国家重点实验室,北京100083 [2]攀钢集团西昌钢钒有限公司,四川西昌615000 [3]攀钢集团有限公司,四川攀枝花617067

出　　处：《钢铁钒钛》2014年第6期75-80,共6页Iron Steel Vanadium Titanium

摘　　要：随着西昌钢钒高级别钢种的不断开发,转炉控制硫含量越来越困难。为了满足低硫品种钢的要求,调查得出半钢冶炼过程回硫主要因素为脱硫渣未扒净、炼钢辅料带入及冶炼过程炉渣成分不合适。通过优化脱硫扒渣工艺、控制转炉入炉原材料、优化转炉冶炼工艺及出钢过程渣洗脱硫,转炉平均回硫由原来的0.003%降低至0.001%,回硫控制效果明显。With the development of high grade steels, it becomes more and more difficult for BOF to pro-duce low sulfur steel. At present main factors causing resulfurization during semi steel smelting process inPangang Group Xichang Iron ＆ Steel Company are incomplete skimming desulfurization slag,contributionof auxiliary materials and unsuitable smelting slag composition.After optimizing,desulfurization slag skim-ming procedure, controlling feeding materials quality, improving smelting process and slag washing desul-furization during tapping, average resulfurization reduces from 0.003% down to 0.001%.

关 键 词：转炉 回硫 低硫钢 脱硫扒渣 渣洗脱硫 

分 类 号：TF713[冶金工程—钢铁冶金]