东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2019, Vol. 40 ›› Issue (2): 202-206.DOI: 10.12068/j.issn.1005-3026.2019.02.010

• 材料与冶金 • 上一篇    下一篇

气淬法制备高炉渣玻璃微珠的性能

康月1， 刘超1， 张玉柱1,2， 姜茂发1   

  1. (1. 东北大学 冶金学院， 辽宁 沈阳110819; 2. 华北理工大学 冶金与能源学院， 河北 唐山063009)
  • 收稿日期:2017-12-22 修回日期:2017-12-22 出版日期:2019-02-15 发布日期:2019-02-12
  • 通讯作者: 康月
  • 作者简介:康 月(1989-)，女，河北衡水人，东北大学博士研究生； 张玉柱(1956- )，男，河北南皮人，东北大学教授，博士生导师； 姜茂发(1955-)，男，山东文登人，东北大学教授，博士生导师.
  • 基金资助:
    国家重点研发项目(2016YFB0601403).

Properties of Glass Beads Prepared by Gas Quenching of Blast Furnace Slag

KANG Yue1， LIU Chao1， ZHANG Yu-zhu1,2， JIANG Mao-fa1   

  1. 1. School of Metallurgy， Northeastern University， Shenyang 110819， China; 2. College of Metallurgy and Energy， North China University Science and Technology， Tangshan 063009， China.
  • Received:2017-12-22 Revised:2017-12-22 Online:2019-02-15 Published:2019-02-12
  • Contact: ZHANG Yu-zhu
  • About author:-
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摘要： 通过实验分别检测了高炉渣珠的堆积密度、粒度分布、化学侵蚀性、筒压强度和表观特性.结果表明，堆积密度随粒径的增加先增加后减小，0.3~1mm粒径范围内渣珠堆积密度最大，并且渣珠粒径主要集中在0.30~1.0mm之间，成珠率较高;渣珠不耐酸，在同一侵蚀溶液中，粒径较大的渣珠的抗侵蚀能力强于粒径较小的渣珠;粒径越小，渣珠筒压强度越大，渣珠承受压力的能力越强;高炉渣珠表面光滑平整，呈圆球状，粒径大小均匀;由于渣珠气淬的冷却速率较快，渣珠非晶相含量较高，当渣珠粒径<0.30mm时，XRD曲线变为馒头峰，基本不再有晶相析出，矿相变为非晶相.

关键词: 气淬, 高炉渣, 堆积密度, 筒压强度, 粒径分布

Abstract: The bulk density， particle size distribution， chemical erosion， cylindrical compressive strength and morphology of air-quenched BFS(blast furnace slag)are measured by experiments.The results show that the bulk density increases first and then decreases with the increase of particle size and is the largest in the particle size range of 0.30~1.0mm.The size of slag beads is mainly between 0.30~1.0mm where the bead yield is high. The slag beads do not resist acid erosion. In terms of erosion resistance， larger slag beads are better than smaller ones in the same erosion solution.The smaller the particle size， the greater the cylinder compressive strength of the slag beads and the stronger the ability to bear pressure. The surface of slag beads is smooth and spherical， and the particle size is uniform.The content of amorphous phase of the slag beads is high because of the rapid cooling rate of the slag beads by gas quenching. When the slag beads sizes are less than 0.30mm， the XRD curve becomes the shape of a teamed bread， showing that crystal phase is hardly precipitated and the minerals are amorphous.

Key words: gas quenching, blast furnace slag, bulk density, cylindrical compressive strength, particle size distribution

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