摘要
根据相似原理,研究了原设计方案和优化改进方案对中间包流场的影响。采用刺激-响应实验方法测得中间包流体的平均停留时间分布(RTD)曲线,并得到不同方案控流装置对中间包流体流动的影响,从而优化对中间包流场的控制。研究结果表明:方案4中活塞区体积分数增大了42.44%,钢液平均停留时间延长了500s左右,并且提高了中间包各流之间的钢液均匀性,从而促进夹杂物的上浮去除。
Based on the principle of similarity, a study has been conducted on the effects of the original design and the optimized design upon the flow field in tundishes. With the stimulus-response approach adopted, the average residence time distribution（RTD） curves of the tundish fluid flow can be obtained and the effect of the two sets of flow control devices on the fluid flow behavior in tundishes can be worked out, thus optimizing the control on the flow field in tundishes. The results show that the plug flow volume has been increased by 42.44%, the average residence time of steel liquid flow in the tundish has been extended by approximately 500 s, and the homogeneity of the molten steel flow in each outlet has been improved, thus facilitating the removal of the floating inclusions.
出处
《湖南工业大学学报》
2016年第4期48-52,共5页
Journal of Hunan University of Technology
基金
湖南省大学生研究性学习和创新性实验计划基金资助项目(湘教通[2015]269-323)
湖南省教育科学十二五规划课题基金资助项目(XJK012BGD020)
关键词
中间包
流场控制
V形挡墙
水模拟
tundish
flow field control
V-shaped retaining wall
water modeling
