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 ›› 2018, Vol. 39 ›› Issue (1): 28-33.

• 工艺技术 • 上一篇    下一篇

低钛高炉渣应用于HRB400E螺纹钢100t LF精炼的工业试验

王宝华1,2,宫永煜2,张明博1,2,黄世平3,宁树博2   

  1. 1.北京科技大学冶金与生态工程学院,北京 100083;
    2.河钢股份有限公司承德分公司,承德 067102;
    3.河钢集团钢研总院,石家庄 050023 ;
  • 收稿日期:2017-08-17 出版日期:2018-02-01 发布日期:2022-06-30
  • 作者简介:王宝华(1973-),男,高级工程师,博士研究生(北京科技大学),1996年河北理工大学(专科)毕业,炼钢工艺技术研究。

Commercial Pilot Production of Threading Steel HRB400E 100t LF Refining by Using Low Titanium Blast Furnace Slag

Wang Baohua1,2 , Gong Yongyu2 , Zhang Mingbo1,2 , Huang Shiping3 , Ning Shubo2   

  1. 1.School of Metallurgical and Ecological Engineering, University of Science and Technology, Beijing 100083 ;
    2.Chengde Branch,Hesteel Co Ltd, Chengde 067102 ;
    3.Central Iron and Steel Research Institute, Hesteel Group, Shijiazhuang 050023;
  • Received:2017-08-17 Published:2018-02-01 Online:2022-06-30

摘要: 采用喷吹CO2法对低钛高炉渣进行脱硫处理,低钛高炉渣中硫的脱除率为66.59%~78.01%,渣中残硫含量为0.137%~0.283%,所制备的低硫低钛高炉渣中硫含量基本满足HRB400E钢LF精炼渣要求。低硫低钛高炉渣LF精炼终渣成分为/%:37.40~46.50CaO,12.30~15.10MgO,21.70~26.70SiO2,5.74~17.00Al2O3,2.44~3.39TiO2,0.36~1.42MnO,0.75~1.62Fe2O3,0.200~0.597S,钢水脱硫率为10.0%~41.5%,HRB400E钢终点[S]为0.008%~0.029%,与现工艺精炼渣(折渣和钢包渣终渣成分/%:34.30~42.90CaO,13.60~18.10MgO,24.00~26.50SiO2,4.88~11.00Al2O3,0.71~1.12TiO2,0.47~1.47MnO,0.81~1.72Fe2O3,0.245~1.132S)的脱硫效果相当(HRB400E钢终点[S]0.027%~0.032%)。

关键词: 低钛高炉渣, 喷吹CO2法髙炉渣脱硫, HRB400E螺纹钢, LF精炼

Abstract: With desulphurizing treatment on low titanium blast furnace slag by blowing CO2 method, the rate of removing sulfur from low titanium blast furnace slag is 66.59% ~78.01 % and the residual sulfur content in blast furnace slag is 0.137% ~0.283% , therefore the sulfur content in prepared low sulfur and low titanium blast furnace basically meets the requirements of LF refining slag for steel HRB400E. By using low sulfur and low titanium blast furnace slag the ingredient of end slag of LF refining is /% : 37.40 ~46.50 CaO, 12.30 ~15.10 MgO, 21.70〜26.70 SiO2,5.74~17.00 Ag , 2.44~3.39 TiO2, 0.36~1.42 MnO, 0.75~1.62 Fe2O3, and 0.200〜0.597 S, the desulphurized rate of liquid is 10.0% ~41.5% , and the end [S] of steel HRB400E is 0.008% ~0.029% , it is about equal to the effect of desulphurization by using present process refining slag-ladle slag and drained hot slag ( LF refining end slag ingredient /% : 34.30 〜42.90 CaO, 13.60 〜18.10 MgO, 24.00 〜26.50 SiO2, 4.88 -11.00 A12O3, 0.71 ~1.12 TiO2 0.47~1.47 MnO, 0.81~1.72 Fe2O3, 0.245〜1.132 S; end [S] of steel HRB400E 0.027% ~0.032% ).