多流连铸中间包停留时间分布曲线总体分析方法

雷洪; 赵岩; 鲍家琳; 刘承军; 陈海耿; 赫冀成

doi:10.3724/SP.J.1037.2010.00220

金属学报 >

2010 , Vol. 46 >Issue 9: 1109 - 1114

DOI: https://doi.org/10.3724/SP.J.1037.2010.00220

论文

多流连铸中间包停留时间分布曲线总体分析方法

雷洪 ,
赵岩 ,
鲍家琳 ,
刘承军 ,
陈海耿 ,
赫冀成

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1) 东北大学材料电磁过程研究教育部重点实验室, 沈阳 110819
2) 东北大学材料与冶金学院, 沈阳 110819

雷洪, 男, 1973年生, 副教授

收稿日期: 2010-05-10

修回日期: 2010-07-06

网络出版日期: 2010-09-11

基金资助

国家高技术研究发展计划项目2009AA03Z530, 国家自然科学基金和上海宝钢集团公司联合项目50834010, 教育部科学技术研究重点项目108036, 教育部留学回国人员科研启动基金项目20071108-2, 高等学校学科创新引智计划项目B07015, 辽宁省科学技术计划项目2009221007和东北大学留学归国博士启动基金项目资助

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WHOLE ANALYSIS APPROACH FOR RESIDUE TIME DISTRIBUTION CURVE IN MULTI-STRAND CONTINUOUS CASTING TUNDISH

LEI Hong ,
DIAO Yan ,
PAO Jia-Lin ,
LIU Zhang-Jun ,
CHEN Hai-Geng ,
SHI Ji-Cheng

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1) Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang 110819
2) School of Materials and Metallurgy, Northeastern University, Shenyang 110819

Received date: 2010-05-10

Revised date: 2010-07-06

Online published: 2010-09-11

Supported by

Supported by National High-Tech R&D Program of China (No.2009AA03Z530), National Natural Science Foundation of China and Shanghai Baosteel (No.50834010)

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摘要

提出了一种研究多流中间包钢液流动特性的分析方法. 首先, 利用多流中间包各流的实验数据得到多流中间包的总体停留时间分布(RTD)曲线; 其次, 采用经典的分析模型研究多流中间包的总体 RTD曲线; 最后, 以平均停留时间作为关键参数来评估多流中间包各流钢液流动特性的一致性. 此方法的优点在于避免了负死区体积的出现, 并且死区体积分率大小符合物理事实.

关键词： 连铸; 多流中间包; 总体停留时间分布(RTD); 流动特性; RTD曲线

本文引用格式

雷洪 , 赵岩 , 鲍家琳 , 刘承军 , 陈海耿 , 赫冀成 . 多流连铸中间包停留时间分布曲线总体分析方法[J]. 金属学报, 2010 , 46(9) : 1109 -1114 . DOI: 10.3724/SP.J.1037.2010.00220

Abstract

The study of residue time distribution (RTD) curve is usually one of the effective methods to estimate the flow characteristics in the continuous casting tundish. In the past, the analysis model for RTD curve of one-strand is usually applied to estimate the individual strand data in multi-strand tundish, but the result obtained by such a model can not agree with the physical fact sometimes. In this paper, an analysis model is proposed to analyze flow characteristics in multi-strand tundish. First, the whole RTD curve of multi-strand tundish is obtained by the individual strand data. Second, classic analysis model is applied to analyze the whole RTD curve of multi-strand tundish. Third, average residence time is chosen as a key parameter to estimate the similarity of flow characteristics of each strand in the multi-strand tundish. Such an analysis approach can avoid the occurrence of the negative dead zone. And the volume ratio of dead zone satisfies the physical facts.

Key words： continuous casting; multi-strand tundish; whole residue time distribution (RTD); flow characterization; RTD curve

参考文献

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