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›› 2011, Vol. 11 ›› Issue (1): 97-102.

• 过程与工艺 • 上一篇    下一篇

若干国内外铁矿粉的同化性实验研究

张建良 苏步新 车晓梅 林祥海 孔德文 国宏伟   

  1. 北京科技大学冶金与生态工程学院 北京科技大学冶金与生态工程学院 北京科技大学冶金与生态工程学院 北京科技大学冶金与生态工程学院 北京科技大学冶金与生态工程学院 北京科技大学冶金与生态工程学院
  • 收稿日期:2011-03-07 修回日期:1900-01-01 出版日期:2011-02-20 发布日期:2011-02-20
  • 通讯作者: 张建良

Experimental Study on Assimilation of Iron Ores at Home and Abroad

ZHANG Jian-liang SU Bu-xin CHE Xiao-mei LIN Xiang-hai KONG De-en GUO Hong-wei   

  1. School of Metallurgical and Ecological Engineering，University of Science and Technology Beijing School of Metallurgical and Ecological Engineering，University of Science and Technology Beijing School of Metallurgical and Ecological Engineering，University of Science and Technology Beijing School of Metallurgical and Ecological Engineering，University of Science and Technology Beijing School of Metallurgical and Ecological Engineering，University of Science and Technology Beijing School of Metallurgical and Ecological Engineering，University of Science and Technology Beijing
  • Received:2011-03-07 Revised:1900-01-01 Online:2011-02-20 Published:2011-02-20
  • Contact: ZHANG Jian-liang

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被引次数

14

摘要： 对来自澳大利亚、巴西、印度、南非及中国的7种铁矿粉的同化性进行了实验测定和因素考察. 结果表明，不同产地、类型的铁矿粉同化性差异明显，印度矿的同化性最高，最低同化温度为1235℃，其SiO2含量为9.52%，结晶水含量为5.67%，为颗粒疏松的赤铁矿；同化性最弱的南非矿的最低同化温度为1355℃，MgO含量高达2.37%，结晶水含量为0.05%，为结构致密的磁铁矿；铁矿粉的MgO和自然二元碱度R2与其同化性呈负相关关系，而SiO2含量、Al2O3 含量、结晶水含量、气孔率等与其同化性呈正相关关系；铁矿物晶粒粒度组成较细，结构疏松的铁矿石具有相对高的同化性.

关键词: 铁矿粉, 烧结, 同化性

Abstract: Assimilation of 7 kinds of iron ores from Australia, Brazil, India, South Africa and China was evaluated and analyzed. The results show that the ores with different types or from different places are apparently different in assimilation. Among them, the assimilation of India ore is the highest, of which the lowest assimilation temperature is 1235℃, the content of SiO2 9.52%, and content of crystallized water 5.67%; except these, the ore is hematite, showing as crumbly particles. The lowest assimilation ore is South Africa ore, of which the lowest assimilation temperature is 1355℃, the content of MgO up to 2.37%, and content of crystallized water 0.05%, except these, the ore is construction-compact magnetite. The assimilation of the ores has negative correlation with MgO content and binary basicity, while it has positive correlation with porosity and the content of SiO2, Al2O3, and crystallized water. The iron ores with small crystalline size and microstructure looseness have relatively higher assimilation.

Key words: iron ore powder, sintering, assimilation

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