东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2013, Vol. 34 ›› Issue (7): 956-960.DOI: -

• 材料与冶金 • 上一篇    下一篇

高铬型钒钛磁铁矿配量增加对氧化球团质量的影响

唐珏，张勇，储满生，薛向欣   

  1. (东北大学材料与冶金学院，辽宁沈阳110819)
  • 收稿日期:2013-01-17 修回日期:2013-01-17 出版日期:2013-07-15 发布日期:2013-12-31
  • 通讯作者: 唐珏
  • 作者简介:唐珏(1988-)，女，湖南永州人，东北大学博士研究生；储满生(1973-)，男，安徽岳西人，东北大学教授，博士生导师；薛向欣(1954-)，男，河北唐山人，东北大学教授，博士生导师.
  • 基金资助:
    国家自然科学重大基金资助项目(51090384)；国家高技术研究发展计划项目(2012AA062302，2012AA062304)；中央高校基本科研业务费专项资金资助项目(N110202001).

Effect of the Increasing Percent of High Chromium VanadiumTitanium Magnetite on Quality of Oxidized Pellets

TANG Jue， ZHANG Yong， CHU Mansheng， XUE Xiangxin   

  1. School of Materials ＆ Metallurgy， Northeastern University， Shenyang 110819， China.
  • Received:2013-01-17 Revised:2013-01-17 Online:2013-07-15 Published:2013-12-31
  • Contact: CHU Mansheng
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摘要： 采取“细磨处理高铬型钒钛磁铁矿”和“以粒度较细的廉价欧控矿代替现场生产用矿”两种优化措施，考察了高铬型钒钛磁铁矿配量增加对氧化球团质量的影响，探索了高铬型钒钛矿在球团原料中配量增加的可行性.结果表明:“细磨处理高铬型钒钛磁铁矿”和“以粒度较细的廉价欧控矿代替现场生产用矿”，当高铬型钒钛矿配量40%时，抗压强度分别为2475N·个-1和2005N·个-1，膨胀率为192%和16%，皆满足高炉生产要求，可实现该矿在原料中配量增加，能达到高铬型钒钛矿预期90万t/年的处理目标.

关键词: 高铬型钒钛磁铁矿, 细磨, 氧化球团, 抗压强度, 还原膨胀

Abstract: The two optimization measures including “fine grinding high chromium vanadiumtitanium magnetite” and “replacement of the practical production iron ore with cheap finer Oukong powder(imported)” were adopted. Effects of the percentage of the addition of the high chromium vanadiumtitanium magnetite powder on the quality of oxidized pellets were investigated and the feasibility of adding high chromium vanadiumtitanium magnetite powder was explored. Through both optimization methods， when the ratio of high chromium vanadiumtitanium magnetite was 40%， the compressive strength was 2475N per one and 2005N per one，respectively， while the reduction expansion ratio was 192% and 16% correspondently. These parameters all met the requirements of the practical blast furnace production. So the increasing percent of high chromium vanadiumtitanium magnetite in raw material was achieved and the target of 900000 tons per year of the iron and steel company was reached.

Key words: high chromium vanadiumtitanium magnetite, fine grinding, oxidized pellet, compressive strength, reduction swelling

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