Vol.29 Suppl.1 孙开明等：现代电弧炉炼钢热装铁水技术的再认识 55 待硅氧化完毕后，脱碳反应开始，此时熔池钢水温 效益，提出结合热装铁水带来的负面影响，确定现 度因硅氧化已经升得很高，脱碳反应会十分激烈且 代电弧炉采用热装铁水的比例 集中（大沸腾），造成热损失大，喷溅严重，甚至 (4)现代电弧炉铁水热装最佳方式是从炉后侧 会酿成事故，因此，一般要求热装铁水中硅质量分 开口兑入铁水：铁水温度≥1200℃：铁水中硅质量 数≤1.0%，最好≤0.5%. 分数≤1.0%，最好≤0.5%. 4结论 参考文献 [川周建男.钢铁生产工艺装备新技术.北京：治金工业出版社， (1)由于电弧炉炼钢功能的分化、治炼周期缩 2004 2]傅杰，朱荣.我国电炉炼钢的发展现状与前景2006年全国 短、生产效率提高的超高功率电弧炉及其相关技术 炼钢、连铸生产技术会议文集.北京：治金工业出版社，2006 的发展，使电弧炉炼钢技术从传统型转变成现代型. [3)】孙开明，温德松，张露.1501电炉连铸流程技术改造及创新实 (2)现代电弧炉采用热装铁水技术获得了很大 践/中国钢铁年会论文集.北京：治金工业出版社，2005 的经济效益，用热装铁水大量代替废钢，扩大了电 [4]李士琦.关于电炉炼钢能量问趣的讨论∥中国电炉流程与工 弧炉治炼钢种范围，但也对金属资源和环境产生了 程技术文集.北京：治金工业出版社，2005 ·系列影响. [5】徐匡迪。电炉短流程回顾和发展中的若干问趣∥中国电炉流 (3)全面比较热装铁水的成本变化和热装铁水 程与工程技术文集.北京：治金工业出版社，2005 Re-understanding for modern EAF steel-making of charging hot metal SUN Kaiming),Zhang Lu2,WEN Desong?) 1)Metallurgical and Ecological Engineering School,University of Sciences and Technology Beijing,Beijing 100083,China 2)Tianjin Pipe Co.,Tianjin 300301,China ABSTRACT According to Tianjin Pipe practice of charging hot metal to a modern electric arc furnace,it was known that the hot metal charging technology could increase the economic benefit and expand the EAF steel grads.Compared the traditional arc furnace with the oxygen converter,the depth of the pool of a modern EAF should be between the EAF's and the basic oxygen converter's.Compared the changes of the cost with the profit and the negative influence of charging hot metal,the proportion of the charging hot metal was determined.The best place to charge hot metal into a modern EAF was the back of the opening acidic.The temperature of the hot metal should be higher than 1200C.Silicon in hot metal should be lower than 1.0%(mass fraction),and the best should be lower than 0.5%. KEY WORDS EAF steel-making:hot metal charging:high efficiencyVol.29 Suppl.1 孙开明等：现代电弧炉炼钢热装铁水技术的再认识 • 55 • 待硅氧化完毕后，脱碳反应开始，此时熔池钢水温 度因硅氧化已经升得很高，脱碳反应会十分激烈且 集中（大沸腾），造成热损失大，喷溅严重，甚至 会酿成事故．因此，一般要求热装铁水中硅质量分 数≤1.0%，最好≤0.5%． 4 结论 （1）由于电弧炉炼钢功能的分化、冶炼周期缩 短、生产效率提高的超高功率电弧炉及其相关技术 的发展，使电弧炉炼钢技术从传统型转变成现代型． （2）现代电弧炉采用热装铁水技术获得了很大 的经济效益．用热装铁水大量代替废钢，扩大了电 弧炉冶炼钢种范围，但也对金属资源和环境产生了 一系列影响． （3）全面比较热装铁水的成本变化和热装铁水 效益，提出结合热装铁水带来的负面影响，确定现 代电弧炉采用热装铁水的比例． （4）现代电弧炉铁水热装最佳方式是从炉后侧 开口兑入铁水；铁水温度≥1200℃；铁水中硅质量 分数≤1.0%，最好≤0.5%． 参 考 文 献 [1] 周建男. 钢铁生产工艺装备新技术. 北京: 冶金工业出版社， 2004 [2] 傅杰，朱荣. 我国电炉炼钢的发展现状与前景 //2006 年全国 炼钢、连铸生产技术会议文集. 北京：冶金工业出版社，2006 [3] 孙开明，温德松，张露. 150t 电炉连铸流程技术改造及创新实 践 //中国钢铁年会论文集. 北京：冶金工业出版社，2005 [4] 李士琦. 关于电炉炼钢能量问题的讨论 //中国电炉流程与工 程技术文集. 北京：冶金工业出版社，2005 [5] 徐匡迪. 电炉短流程回顾和发展中的若干问题 //中国电炉流 程与工程技术文集. 北京：冶金工业出版社，2005 Re-understanding for modern EAF steel-making of charging hot metal SUN Kaiming1), Zhang Lu2) ,WEN Desong2) 1) Metallurgical and Ecological Engineering School, University of Sciences and Technology Beijing, Beijing 100083, China 2) Tianjin Pipe Co., Tianjin 300301, China ABSTRACT According to Tianjin Pipe practice of charging hot metal to a modern electric arc furnace, it was known that the hot metal charging technology could increase the economic benefit and expand the EAF steel grads. Compared the traditional arc furnace with the oxygen converter, the depth of the pool of a modern EAF should be between the EAF’s and the basic oxygen converter’s. Compared the changes of the cost with the profit and the negative influence of charging hot metal, the proportion of the charging hot metal was determined. The best place to charge hot metal into a modern EAF was the back of the opening acidic. The temperature of the hot metal should be higher than 1200℃. Silicon in hot metal should be lower than 1.0% (mass fraction), and the best should be lower than 0.5%. KEY WORDS EAF steel-making; hot metal charging; high efficiency