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Optimization of flow control devices in a single-strand slab continuous casting tundish
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Optimization of flow control devices in a single-strand slab continuous casting tundish
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Journal Article
Optimization of flow control devices in a single-strand slab continuous casting tundish
2011
Overview
The optimization of flow control devices in a single-slab continuous casting tundish was carried out by physical modeling, and the optimized scheme was presented. With the optimal tundish configuration, the minimum residence time of liquid steel was increased by 1.4 times, the peak concentration time was increased by 97%, and the dead volume fraction was decreased by 72%. A mathematical model for molten steel in the tundish was established by using the fluid dynamics package Fluent. The velocity field, concentration field, and the resi-dence time distribution （RTD） curves of molten steel flow before and after optimization were obtained. Experimental results showed that the reasonable configuration with flow control devices can improve the fluid flow characteristics in the tundish. The results of industrial applica-tion show that the nonmetallic inclusion area ratio in casting slabs is decreased by 32% with the optimal tundish configuration.
Publisher
University of Science and Technology Beijing,Springer Nature B.V,School of Metallurgical and Ecological Engineering University of Science and Technology Beijing, Beijing 100083, China,Shougang Research Institute of Technology, Beijing 100041, China%School of Metallurgical and Ecological Engineering University of Science and Technology Beijing, Beijing 100083, China%Shougang Research Institute of Technology, Beijing 100041, China
Subject
/ Characterization and Evaluation of Materials
/ Chemistry and Materials Science
/ Computational fluid dynamics
/ Devices
/ Glass
/ Slabs
/ Steels
/ 优化方案
/ 停留时间
/ 最佳配置
/ 板坯
/ 流体动力学
/ 流量控制装置
/ 连铸中间包
/ 非金属夹杂物
