ISSN:1003-8620

CN:42-1243/TF

主管:中信泰富特钢集团股份有限公司

主办:大冶特殊钢有限公司

特殊钢 ›› 2013, Vol. 34 ›› Issue (1): 37-40.

• 工艺技术 • 上一篇    下一篇

150 t LF工艺操作与供电制度优化

王义芳1,胡志刚2,赵英利2,周学禹3,李杰2   

  1. 1河北钢铁集团.石家庄050000;
    2河北钢铁技术研究总院,石家庄050000;
    3河北钢铁集团承钢公司,承德067002
  • 收稿日期:2012-08-06 出版日期:2013-02-01 发布日期:2022-09-14
  • 作者简介:王义芳( 1958-),男,博士,教授级高级工程师,1982年武汉钢铁学院毕业,炼钢和LF精炼工艺技术研究.

Optimization of Process Operation and Power Supply Scheme for 150 t LF

Wang Yifang1 , Hu Zhigang2, Zhao Yingli2, Zhou Xueyu3 , Li Jie2   

  1. 1 Hebei Iron & Steel Group, Shijiazhuang 050000 ;
    2 Hebei Iron & Steel Technology Research Institute, Shijiazhuang 050000;
    3 Chengde Iron and Steel Company, Hebei Iron & Steel Group, Chengde 067002
  • Received:2012-08-06 Published:2013-02-01 Online:2022-09-14

摘要: 150 t钢包炉(LF)精炼的钢种主要有汽车大梁钢、车轮钢等,其生产流程为150 t转炉-150 t LF-板坯连铸-连轧。通过150 t LF平均初渣碱度由3.4降至2.1,喂Ca线平均速度由4.0 m/s提高至4.7 m/s,改善了初渣流动性,吨钢Al用量降低0.15 kg,钙的收得率提高了17%;通过供电制度的优化,在加热期间降低电耗2.5k Wh/s,钢液升温速度可提高0.93℃/min。

关键词: 150t LF, 精炼, 初渣碱度, 供电制度, 优化

Abstract: The 150t ladle furnace (LF) refining main steels are beam steels for car and wheel steels etc, with production flow sheet 150 t converter-150 t LF-slab casting-continuous rolling. With decreasing the 150t LF average initial slag basicity form 3. 4 to 2. 1 and increasing the Ca wire average feeding rate from 4. 0 m/s to 4. 7 m/s, the initial slag flowability is obviously improved, the Al consumption decreases by 0. 15 kg/1 and the yield of calcium increases by 17% ; with optimizing the power supply scheme the electricity consumption decreases by 2. 5 kWh/s in heating period and the heating-up rate of liquid increases by 0. 93℃ /min.