东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2007, Vol. 28 ›› Issue (11): 1604-1607.DOI: -

• 论著 • 上一篇    下一篇

富硼渣冷却速率与活性的关系

战洪仁;刘素兰;樊占国;   

  1. 东北大学材料与冶金学院;东北大学材料与冶金学院;东北大学材料与冶金学院 辽宁沈阳110004;辽宁沈阳110004;辽宁沈阳110004
  • 收稿日期:2013-06-24 修回日期:2013-06-24 出版日期:2007-11-15 发布日期:2013-06-24
  • 通讯作者: Zhan, H.-R.
  • 作者简介:-
  • 基金资助:
    国家“十一五”科技攻关项目(2006AA06Z368)

On the relation between cooling rate and activity of boron-rich slag

Zhan, Hong-Ren (1); Liu, Su-Lan (1); Fan, Zhan-Guo (1)   

  1. (1) School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China
  • Received:2013-06-24 Revised:2013-06-24 Online:2007-11-15 Published:2013-06-24
  • Contact: Zhan, H.-R.
  • About author:-
  • Supported by:
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摘要： 以硼铁矿13 m3高炉分离生产的富硼渣为原料进行了缓冷试验.通过改变富硼渣熔体的冷却条件,在1500~1 200℃区间控制冷却速率从0.76℃/min到20℃/min,在1200~900℃区间,冷却速率应小于2℃/min.富硼渣活性可由40.05%增加到83.72%.冷却速率越高,富硼渣的活性越大.这一试验结果与实验室研究结果相符合.试验结果表明现场可以实现两段式冷却提高活性,并为今后冷却装置设计指明了方向.

关键词: 富硼渣, 冷却, 冷却速率, 活性, 冷却装置

Abstract: The slow cooling process of boron-rich slag which was separated from paigeite with iron in a small 13 m3 blast furnace was studied through testing. The activity or leaching ratio of boron can be increased to 83.72% from 40.05% by changing the cooling conditions for the boron-rich slag melt, i.e. in the temperature range from 1500°C to 1200°C the cooling rate is controlled form 0.76°C/min to 20°C/min and in the range from 1200°C to 900°C the rate is lower than 2°C/min. The higher the cooling rate, the higher the activity or leaching ratio of the boron-rich slag. The testing results are coincided with theoretical investigation and the results of bench scale test, which showed that the leaching ratio can be improved actually through two-stage cooling schedule and the way to design the cooling system in future.

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