东北大学学报(自然科学版) ›› 2013, Vol. 34 ›› Issue (3): 383-387.DOI: -

• 材料与冶金 • 上一篇    下一篇

高铬型钒钛磁铁矿烧结试验

张勇,周密,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:2012-07-24 修回日期:2012-07-24 出版日期:2013-03-15 发布日期:2013-01-26
  • 通讯作者: 张勇
  • 作者简介:张勇(1978-),男,江西九江人,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,辽宁沈阳人,东北大学教授,博士生导师.
  • 基金资助:
    国家高技术研究发展计划项目(2012AA062302,2012AA062304);国家自然科学基金重大资助项目(51090384);中央高校基本科研业务费专项资金资助项目(N110202001);科技部重大国际合作项目(2012DFR60210).

Sintering Experiments of HighCr Vanadium and Titanium Magnetite

ZHANG Yong, ZHOU Mi, CHU Mansheng, XUE Xiangxin   

  1. School of Materials & Metallurgy, Northeastern University, Shenyang 110819, China.
  • Received:2012-07-24 Revised:2012-07-24 Online:2013-03-15 Published:2013-01-26
  • Contact: XUE Xiangxin
  • About author:-
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摘要: 在高铬型钒钛磁铁矿基础特性研究的基础上,进行了配矿优化和烧结杯试验,并对烧结产物进行显微分析.结果表明,该矿烧结基本特性差,随着配比的提高,垂直烧结速度和产品转鼓指数下降,成品率和利用系数先升后降.另外,显微结构分析表明,高铬型钒钛烧结矿矿物组成主要有磁铁矿、赤铁矿、钙钛矿、铁酸钙、硅酸二钙和玻璃质.随着该矿配比的提高,烧结矿中铁酸钙、硅酸二钙含量降低,钙钛矿及玻璃相含量增加,液相量不足.因此,在实际生产中,该矿配比宜控制在10%~20%之间.

关键词: 高铬型钒钛磁铁矿, 烧结基础特性, 优化配矿, 矿相, 烧结矿

Abstract: Considering lack of related technological documentation and detailed researches on ore matching optimization, sintering pot tests and mineralography analysis on the basis of basic sintering characteristics were done in this experiment. The results showed that basic sintering characteristics of highCr VTi magnetite are relatively poor, vertical sintering speed and tumbling index decreased, the yield and productivity first increased and then decreased with the increase of the addition ratio of highCr VTi magnetite in sinter feeds. Furthermore the analysis of the microstructure showed that the mineralography structure of the sinter mainly included magnetite, hematite, perovskite, calcium ferrite, dicalcium silicate and glass. With the increase of the proportioning of highCr VTi magnetite, the content of calcium ferrite and dicalcium silicate decreased, perovskite and glass increased and the liquid phase tended to be insufficient. Thus, the proportioning of highCr VTi magnetite should be controlled between 10% and 20% for the practical sintering production.

Key words: highCr vanadium and titanium magnetite, basic sintering characteristics, optimization of matching ores, mineral phase, sinter

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