100t复吹转炉降低炉渣T.Fe含量工艺实践
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- 英文论文题名：Process practice of reducing T.Fe content in slag of 100t combined blowing converter
- 论文作者：韩啸 ; 李晶 ; 阿不力克木·亚森 ; 罗开敏 ; 吴龙 ; 姚永宽 ; 王攀峰
- 英文论文作者：Han Xiao ; Li Jing ; ABLIKM·Yasen ; Luo Kaimin ; Wu Long ; Yao Yongkuan ; Wang Panfeng ; State Key Laboratory of Advanced Metallurgy ; University of Science and Technology ; Key Laboratory of High-End Steel Materials Jiangsu ; Nanjing Iron and Steel Corp
- 年：2016
- 作者机构：北京科技大学钢铁冶金新技术国家重点实验室;江苏省高端钢铁材料重点实验室;南京钢铁股份有限公司;
- 论文关键词：出钢碳含量控制 ; 底吹控制 ; 炉渣T.Fe含量 ; 返矿加入时间
- 英文论文关键词：lapping carbon content control ; Bottom blowing control ; T.Fe content in slag ; Adding time of return mine
- 会议召开时间：2016-05-19
- 会议录名称：第十九届（2016年）全国炼钢学术会议大会报告及论文摘要集
- 语种：中文
- 分类号：TF713.3
- 学会代码：ZGJS
- 会议名称：第十九届（2016年）全国炼钢学术会议
- 会议地点：中国湖南长沙
- 主办单位：中国金属学会炼钢分会
- 学会名称：中国金属学会
- 页数：1
- 文件大小：51k
- 原文格式：O
- 会议级别：全国
摘要
南京钢铁股份有限公司100t转炉采用"留渣+单渣"工艺,本文通过工业试验对转炉工艺优化,研究出钢碳含量、底吹和返矿加入时间等因素对炉渣T.Fe的影响。通过控制吹炼末期氧枪枪位、底吹流量、返矿加入时间,对终点碳含量过低炉次采用后搅工艺,减少补吹和过吹等优化手段。在钢厂原有终点目标碳基础上,在高碳出钢和低碳出钢钢种要求范围内,适当提高出钢碳含量,降低终点炉渣T.Fe含量,提高金属收得率,进一步降低转炉生产成本。终点炉渣T.Fe平均含量由18.03%降至14.08%,降低3.95%。
The "slag-remaining+single-slag" BOF steelmaking technology has been applied in Nanjing Iron and Steel Corp,the influence of the content of carbon,bottom blowing and adding time of back to mine on the T.Fe in the slag was investigated by the industrial test of converter process optimization.Through controlling oxygen lance position in late stage of blowing,flow rate of bottom blowing,adding time of back to mine,the stirring process was applied the furnace which had low carbon content at endpoint to reduce reblow and overblowing.On the basis of the original target carbon of steel plant at end point and in range of requirement of high carbon tapping steel and low carbon tapping steel,appropriately increase tapping carbon content,reduce T.Fe content in slag at the end point,improve metal yield and reduce the production cost of converter.The average content of T.Fe in the final slag decreased from 18.03%to 14.08%,reduced by 3.95%.
The "slag-remaining+single-slag" BOF steelmaking technology has been applied in Nanjing Iron and Steel Corp,the influence of the content of carbon,bottom blowing and adding time of back to mine on the T.Fe in the slag was investigated by the industrial test of converter process optimization.Through controlling oxygen lance position in late stage of blowing,flow rate of bottom blowing,adding time of back to mine,the stirring process was applied the furnace which had low carbon content at endpoint to reduce reblow and overblowing.On the basis of the original target carbon of steel plant at end point and in range of requirement of high carbon tapping steel and low carbon tapping steel,appropriately increase tapping carbon content,reduce T.Fe content in slag at the end point,improve metal yield and reduce the production cost of converter.The average content of T.Fe in the final slag decreased from 18.03%to 14.08%,reduced by 3.95%.
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