东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2015, Vol. 36 ›› Issue (11): 1609-1613.DOI: 10.12068/j.issn.1005-3026.2015.11.020

• 材料与冶金 • 上一篇    下一篇

镁铝比对高炉渣脱硫能力的影响

袁骧， 张建良， 毛瑞， 刘征建   

  1. (北京科技大学 冶金与生态工程学院， 北京100083)
  • 收稿日期:2014-03-31 修回日期:2014-03-31 出版日期:2015-11-15 发布日期:2015-11-10
  • 通讯作者: 袁骧
  • 作者简介:袁骧 (1988-)，男，湖南湘潭人，北京科技大学博士研究生； 张建良(1965-)，男，天津人，北京科技大学教授，博士生导师.
  • 基金资助:
    国家自然科学基金资助项目(U1260202)； 高等学校学科创新引智计划项目(B13004).

Effect of w(MgO)/w(Al2O3) Ratio on Desulfurization Capacity of BF Slag

YUAN Xiang， ZHANG Jian-liang， MAO Rui， LIU Zheng-jian   

  1. School of Metallurgical and Ecological Engineering， University of Science and Technology Beijing， Beijing 100083.
  • Received:2014-03-31 Revised:2014-03-31 Online:2015-11-15 Published:2015-11-10
  • Contact: ZHANG Jian-liang
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摘要： 利用双层石墨坩埚，模拟铁液滴下穿过炉渣的过程，主要研究渣中MgO， Al2O3质量分数对炉渣硫质量分数的影响，探索镁铝比与高炉渣硫质量分数的关系.结果表明渣中MgO质量分数由6%提高到12%时，炉渣脱硫能力逐渐提高，由12%提高到14%，脱硫能力逐渐降低；渣中Al2O3质量分数由9%提高到15%时，炉渣脱硫能力逐渐降低，但降低幅度较小，当Al2O3质量分数由15%提高到17%时，炉渣脱硫能力大大降低；MgO质量分数小于12%，Al2O3质量分数小于15%，提高炉渣镁铝比可以显著提高炉渣脱硫能力.

关键词: 高炉, 炉渣, 硫容量, 脱硫能力, 镁铝比

Abstract: The desulfurization process when liquid iron dropped across slag using a double-deck crucible was simulated to study the effect of MgO and Al2O3 on the desulfurization capacity of slag and clarify the relationship between w(MgO)/w(Al2O3) ratio and sulfur content in slag system. The results confirmed that desulfurization capacity increases gradually when the content of MgO increases from 6% to 12%， while further increases MgO content from 12% to 14% leading to the decrease of desulfurization capacity. The desulfurization capacity decreases slightly when Al2O3 content increases from 9% to 15%， while further increase of Al2O3 from 15% to 17% decreases the desulfurization capacity greatly. This study proposes that the desulfurization capacity of slag can be improved obviously by increasing w(MgO)/w(Al2O3) ratio when the content of MgO is less than 12% and content of Al2O3 is less than 15%.

Key words: blast furnace, slag, sulfide capacity, desulfurization capacity, w(MgO)/w(Al2O3) ratio

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