东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2014, Vol. 35 ›› Issue (9): 1266-1270.DOI: 10.12068/j.issn.1005-3026.2014.09.012

• 材料与冶金 • 上一篇    下一篇

厚渣层熔融还原铁浴混合特性的物理模拟

李承志，何奕波，李强，邹宗树   

  1. (东北大学 材料与冶金学院， 辽宁 沈阳110819)
  • 收稿日期:2013-11-12 修回日期:2013-11-12 出版日期:2014-09-15 发布日期:2014-04-11
  • 通讯作者: 李承志
  • 作者简介:李承志(1989-)，男，黑龙江佳木斯人，东北大学博士研究生;邹宗树(1958-)，男，山东章丘人，东北大学教授，博士生导师.
  • 基金资助:
    国家自然科学基金资助项目(51104037).

Physical Simulation of Fluid Mixing in a Smelting Reduction IronBath with Thick Slag Layer

LI Chengzhi， HE Yibo， LI Qiang， ZOU Zongshu   

  1. School of Materials & Metallurgy， Northeastern University， Shenyang 110819， China.
  • Received:2013-11-12 Revised:2013-11-12 Online:2014-09-15 Published:2014-04-11
  • Contact: LI Chengzhi
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摘要： 设计了应用于厚渣层冶炼的铁浴熔融还原炉模型，通过水模实验研究了反应器在不同底吹布置下多层侧枪操作参数对熔池混匀时间的影响规律.单孔底吹实验结果表明，与纯侧吹实验相比，中枪角度、深度以及下枪角度的影响变弱，下枪插入深度的影响增强.多孔底吹实验结果表明:双孔底吹的混匀时间总体上小于四孔底吹布置；当喷嘴数目相同时，非对称底吹的混匀时间小于对称底吹布置.通过比较6种底吹布置下最优参数组合所对应的混匀时间，确定反应器最佳底吹参考布置为双孔非对称底吹，相应的侧枪参数为中枪角度50°、中枪水平深度180mm、下枪角度50°、下枪水平深度180mm.

关键词: 熔融还原, 铁浴反应器, 厚渣层, 物理模拟, 混匀时间

Abstract: An ironbath reactor with thick slag layer for smelting reduction was designed， and the influences of blowing parameters on bath mixing time were studied with a water model. The results showed that using singlenozzle bottom blowing， the influences of middle lance inclination angle and immersion depth and lower lance inclination angle are smaller and the influence of lower lance immersion depth is greater， compared with side blowing only. The mixing time with twonozzle bottom blowing is shorter than that with fournozzle bottom blowing. With the same number of bottom nozzles， the mixing time with asymmetric nozzle layout is shorter than that with symmetric layout. Comparing the mixing time of the six optimum blowing combinations， the asymmetrical twonozzle bottom blowing is the best combination for the reactor， and the corresponding optimum side blowing is as follows: 50° inclination angle， 180mm immersion depth of middle lance and 50° inclination angle， 180mm immersion depth of lower lance.

Key words: smelting reduction, ironbath reactor, thick slag layer, physical simulation, mixing time

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