| 炉料连续预热式电炉炼钢技术探讨 |
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| 引用本文： | 阎立懿,王亦东,李延智,刘一心,那军.炉料连续预热式电炉炼钢技术探讨[J].北京科技大学学报,2009(Z1). |
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| 作者姓名： | 阎立懿 王亦东 李延智 刘一心 那军 |
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| 作者单位： | 东北大学材料与冶金学院;烟台金澄精密线材有限公司;长春电炉成套设备有限责任公司;冀南特钢有限公司; |
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| 基金项目： | 国家863计划项目(No.2007AA04Z194) |
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| 摘 要： | 在废钢入炉熔炼前,利用电炉产生的高温废气进行废钢预热,节能效果明显.炉料连续预热式电炉过程实现废钢连续加料、连续预热及连续熔化,电弧加热熔池、熔池熔化废钢,与普通电炉有着很大的区别.为了实现高效节能、追求流程设备顺行及其指标优化,本文在研究炉料连续预热式电炉工艺特点的基础上,提出如下论点:应对电炉炉衬的砌筑、供电、吹氧去碳、造渣脱磷等予以重视;由于全程平熔池期,给电一开始电弧就加热钢水、就对渣线进行高温辐射,这就必须考虑保护渣线,因此,要求全程造泡沫渣进行埋弧操作;全程平熔池期及变渣线现象,要求渣线镁碳砖的砌筑要向下加厚(～300mm),增加抵御变渣线的能力;炉料连续预热式电炉变压器参数的确定,既要考虑电弧对废钢的熔化(电压要高些)、又要考虑电弧对平熔池的加热及保温的要求(电压要低些),供电上根据电弧的遮蔽状态(废钢或炉渣的遮蔽状态)确定电压的大小;为了最大限度节能及环保,必须采取余热再利用技术,二垩英新的公害值得重视与研究.
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| 关 键 词： | 电炉 炉料连续预热 节能 高阻抗 泡沫渣 |
Technology of metallurgy for continuous scrap preheating electric arc furnace |
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| YAN Li-yi,WANG Yi-dong,LI Yan-zhi,LIU Yi-xin,NA Jun School of Materials , Metallurgy,Northeastern University,Shenyang ,China Yantai Jincheng Precision Wire Rod Co. Ltd.,Yantai ,China Changchun Electric Furnace Co. Ltd.,Changchun ,China Jinan Special Steel Co. Ltd.,H,an ,China.Technology of metallurgy for continuous scrap preheating electric arc furnace[J].Journal of University of Science and Technology Beijing,2009(Z1). |
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| Authors: | YAN Li-yi WANG Yi-dong LI Yan-zhi LIU Yi-xin NA Jun School of Materials Metallurgy Northeastern University Shenyang China Yantai Jincheng Precision Wire Rod Co Ltd Yantai China Changchun Electric Furnace Co Ltd Changchun China Jinan Special Steel Co Ltd H an China |
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| Institution: | YAN Li-yi1),WANG Yi-dong2),LI Yan-zhi3),LIU Yi-xin3),NA Jun4)1) School of Materials , Metallurgy,Northeastern University,Shenyang 110004,China2) Yantai Jincheng Precision Wire Rod Co. Ltd.,Yantai 264006,China3) Changchun Electric Furnace Co. Ltd.,Changchun 130031,China4) Jinan Special Steel Co. Ltd.,H,an 057150,China |
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| Abstract: | Before putting the scrap steel into the electric arc furnace (EAF),using the high-temperature exhaust gas generating from EAF to preheat it can bring obvious energy-saving effect. Continuous scrap preheating EAF is different from the ordinary EAF in the way of the scrap steel continuous feeding,continuous preheating and melting,electric arc heating molten pool and then the molten pool melting scrap. In order to achieve high efficiency and energy-saving,ensure operating the equipment smoothly in the process ... |
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| Keywords: | electric arc furnace continuous scrap preheating energy-saving high-impedance foaming slag |
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