转炉少渣低温高效冶炼工艺“半钢”磷的控制
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- 英文论文题名：Controlling of First Tapping Phosphorus Content of BOF Low Temperature,slagless and efficient melting process
- 论文作者：史湘东 ; 王杰 ; 徐兆国 ; 杨秀芬
- 英文论文作者：SHI Xiang-dong ; WANG Jie ; XU Zhao-guo ; YANG Xiu-fen ; Tianjin Iron Plant ; Hot Rolling company ; Central Iron and Steel Research Institute ; Metallurgical Technology Institute
- 年：2016
- 作者机构：天津铁厂热轧公司;天津铁厂炼钢厂;钢铁研究总院工艺所;
- 论文关键词：少渣冶炼 ; 低温 ; 碱度 ; 脱磷
- 英文论文关键词：Less slag meiting ; lower temperature ; Basicity ; Dephosphorization
- 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：2
- 文件大小：100k
- 原文格式：O
- 会议级别：全国
摘要
本文结合天铁热轧板有限公司采用180t转炉实际生产数据,热轧板公司采用特有的少渣冶炼生产工艺,主要针对半钢脱磷的控制进行了研究。试验炉次前期脱磷率平均56.25%,前期脱碳率31.01%,得出:弱顶吹供氧与强底吹供气强度的顶底复合吹炼模式有利于前期的脱磷保碳,冶炼前期温度1350~1400℃、炉渣碱度1.5~2.0的条件有利于铁水磷的脱除,渣中(FeO)含量的提高有利于前期化渣也有利于铁水磷的脱除。
Trail experiments of efficient,less slag and lower temperature dephosphorization process of 180 t BOF were taken into action.Rwsults as following were got.Firstly,Weak top-blowing and strong bottom blowing did goog to the phosphorus removal and carbon protcetion.Secondly,the consumption of lime and dolomite droped by over 30%and over 20%respeectly,and the dephosphorization ratio of the initial pariod reached 56.25%,the decarbonrization ratio was 31.01%.Through the experiments,points as foUowing were got too.Fiestly,parameters of basicity of 1.5~2.0 and temperature of 1350~1400 ℃ do good to the phosphorus removal of initial pariod,and the increasing of temperature and basicity behave on the contary ways at the end piont..Secondly,increasing of(FeO) content did good to me slag forming behavior which did good to the phosphorus removal.
Trail experiments of efficient,less slag and lower temperature dephosphorization process of 180 t BOF were taken into action.Rwsults as following were got.Firstly,Weak top-blowing and strong bottom blowing did goog to the phosphorus removal and carbon protcetion.Secondly,the consumption of lime and dolomite droped by over 30%and over 20%respeectly,and the dephosphorization ratio of the initial pariod reached 56.25%,the decarbonrization ratio was 31.01%.Through the experiments,points as foUowing were got too.Fiestly,parameters of basicity of 1.5~2.0 and temperature of 1350~1400 ℃ do good to the phosphorus removal of initial pariod,and the increasing of temperature and basicity behave on the contary ways at the end piont..Secondly,increasing of(FeO) content did good to me slag forming behavior which did good to the phosphorus removal.
引文