东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2006, Vol. 27 ›› Issue (10): 1110-1113.DOI: -

• 论著 • 上一篇    下一篇

LF炉合成精炼渣成分优化

孟劲松;姜茂发;王德永;刘承军;   

  1. 东北大学材料与冶金学院;东北大学材料与冶金学院;东北大学材料与冶金学院;东北大学材料与冶金学院 辽宁沈阳110004;辽宁沈阳110004;辽宁沈阳110004;辽宁沈阳110004
  • 收稿日期:2013-06-23 修回日期:2013-06-23 出版日期:2006-10-15 发布日期:2013-06-23
  • 通讯作者: Meng, J.-S.
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(50374029).

Composition optimizing of lab-prepared refining slag for LF

Meng, Jin-Song (1); Jiang, Mao-Fa (1); Wang, De-Yong (1); Liu, Cheng-Jun (1)   

  1. (1) School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China
  • Received:2013-06-23 Revised:2013-06-23 Online:2006-10-15 Published:2013-06-23
  • Contact: Meng, J.-S.
  • About author:-
  • Supported by:
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摘要： 通过建立二次回归正交设计模型,考察了合成精炼渣碱度w(CaO)/w(SiO2),Al2O3和CaF2质量分数对LF深脱硫效果的影响.结果表明,当渣中w(FeO)为0.5%,w(MgO)为9%时,随渣中w(CaO)/w(SiO2)增加,脱硫率均先增大后减小.当w(CaO)/w(SiO2)不同时,Al2O3和CaF2质量分数对脱硫效果的影响程度不同,主要原因是渣中有效CaO含量变化引起的.随渣中w(FeO)降低和渣量增加,脱硫率明显增大.实验优化的最佳脱硫渣系组成为w(CaO)/w(SiO2)=9~11,w(Al2O3)=27%~29%,w(MgO)=9%,w(CaF2)=8%~10%,w(FeO...

关键词: LF炉, 合成精炼渣, 脱硫率, 正交设计, 碱度, CaO含量

Abstract: A model of quadratic orthogonal regression design was designed to investigate the influences of w(CaO)/w(SiO2) and mass fraction of Al2O3 and CaF2 in refining slag on the desulphurization in LF. The results showed that, in the slag if FeO and MgO contents are 0.5% and 9%, respectively, the desulphurization rate increases then decreases with the increasing w(Ca0)/w(SiO2) value whose change will affect the influence of Al2O2, CaF2 content on the desulphurization rate. The main reason is the change in the useful CaO content in refining slag. In addition, the desulphurization rate increases obviously with increasing slag volume and decreasing FeO content. In the experiment the optimum slag composition was found to be w(CaO)/w(SiO2):9-11, w(Al2O3):27%-29%, w(MgO):9%, w(CaF2):8%-10% and w(FeO):less than 0.5%.

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