废钢对转炉熔池混匀过程的影响

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刘勇^1,2，邓南阳¹，周小宾^1,2*，王多刚³，彭世恒^1,2

1. 安徽工业大学冶金工程学院，安徽马鞍山 2430022. 冶金减排与资源综合利用教育部重点实验室，安徽马鞍山 2430023. 中国钢研科技集团有限公司钢铁研究总院，北京 100081

收稿日期:2019-02-01修回日期:2019-04-16出版日期:2019-12-22发布日期:2019-12-22
通讯作者:周小宾

基金资助:高芳烃高含氮重油催化转化反应基础研究

Influence of steel scrap on the mixing of converter bath

Yong LIU^1,2, Nanyang DENG¹, Xiaobin ZHOU^1,2*, Duogang WANG³, Shiheng PENG^1,2

1. School of Metallurgical Engineering, Anhui University of Technology, Ma'anshan, Anhui 243002, China2. Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Ministry of Education, Ma'anshan, Anhui 243002, China3. Central Iron and Steel Research Institute, China Iron and Steel Research Institute Group, Beijing 100081, China

Received:2019-02-01Revised:2019-04-16Online:2019-12-22Published:2019-12-22
Contact:Xiaobin 无ZHOU

摘要/Abstract

摘要： 采用物理模拟研究某炼钢厂250 t转炉冶炼过程中废钢加入量、分布方式和轻重废钢对熔池搅拌混匀的影响。结果表明，轻废钢和重废钢对熔池混匀影响不同，加入轻废钢，熔池混匀时间随废钢量增加而增加，底吹流量为50 L/min时，加入20和60 t废钢熔池混匀时间分别比无废钢时上升48.60%和134.70%。加入重废钢时，废钢在熔池中的分布方式会影响熔池钢液流动，从而影响熔池混匀时间。重废钢在炉底集中分布时，熔池混匀时间随废钢量增加而增加，随底吹气体流量增加而降低。过量底吹气体可能对熔池搅拌有负面影响，底吹流量大于40 L/min时，熔池混匀时间上升。熔池均匀分布时，熔池混匀时间受废钢加入量和底吹气体流量影响。底吹气体流量为25 L/min、重废钢均匀分布时，熔池混匀时间在废钢加入量为40 t和60 t时比20 t时分别降低30.13%和12.93%。废钢倾侧分布时，形成了熔池中非对称搅拌，增加了熔池水平横向流动，一定程度上有利于熔池混匀。相同供气量(25 L/min)下，40 t废钢均匀分布和倾侧分布的混匀时间比集中分布时分别低38.87%和41.01%。

引用本文

刘勇邓南阳周小宾王多刚彭世恒. 废钢对转炉熔池混匀过程的影响[J]. 过程工程学报, 2019, 19(6): 1178-1185.
Yong LIU Nanyang DENG Xiaobin ZHOU Duogang WANG Shiheng PENG. Influence of steel scrap on the mixing of converter bath[J]. Chin. J. Process Eng., 2019, 19(6): 1178-1185.

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