Paper Title:
Effect of Slag Layer on Flow Patterns in a Gas Stirred Ladle
  Abstract

Flow patterns and mixing behaviors in a gas stirred steelmaking ladle with a slag layer were discussed using a water model experiment as well as a numerical simulation. While the water model experiment was performed to investigate the effect of slag on the mixing behavior in ladle, the numerical simulation was carried out to figure out the flow pattern in ladle with a slag layer. Slag viscosity and its thickness in ladle were considered as major variables. It was found that a slag layer made a great change in the flow pattern in ladle, which, in turn, affected on the mixing behavior in ladle. A flow pattern without a slag layer showed that rising bubbles eventually made a recirculation loop at the central area of the ladle and this flow pattern was regarded as a favorable flow pattern for the better mixing behavior. However, a flow pattern with a slag layer showed distorted and localized recirculating loop near side wall below slag layer. This eventually gave a longer mixing time in ladle with a slag layer. Moreover, as the gas flow rate increases, slag existing on top of the ladle was found to be entrained into the melt. Slag viscosity and its thickness were found to be major variables affecting the behavior of slag entrainment. Lower the slag viscosity and thicker the slag layer, much more slag on top of the melt was entrained into the melt.

  Info
Periodical
Materials Science Forum (Volumes 510-511)
Edited by
Hyung Sun Kim, Yu Bao Li and Soo Wohn Lee
Pages
490-493
DOI
10.4028/www.scientific.net/MSF.510-511.490
Citation
S.-H. Cho, S. H. Hong, J. W. Han, B. D. You, "Effect of Slag Layer on Flow Patterns in a Gas Stirred Ladle", Materials Science Forum, Vols. 510-511, pp. 490-493, 2006
Online since
March 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Yan Chang Bi, Yang Li, Han Min Xiao, Ling Hui Sun, Wei Dong Liu
Abstract:Micro flow experiments in microtubes with nominal radius of 5μm have been accomplished and the impacts of wettability on micro flow have been...
736
Authors: Xiao Hui Mao, Jing She Li, Xiao Chuan Lin
Smart/Intelligent Materials/Intelligent Systems
Abstract:Based on the slab caster mold of ChengGang Company as prototype, the water model with 1:1 scale was used to study the effects of casting...
2735
Authors: Kuang Ding, Hong Wu Zhu, Jin Ya Zhang, Chuan Wang, Jian Sheng Hao
Chapter 5: Materials in Energy and Environment (1)
Abstract:Deadleg is a kind of blind pipe connected with a main pipe used for fluid transportation, which has distinct flow characteristics. This work...
2465
Authors: Jun Ping Yao, Zhong Sun
Chapter 1: Material Science and Engineering
Abstract:The flow of the molten slag pool determines the temperature distribution and the pool profiles in the electroslag casting process, which...
250
Authors: Hong Zhou, Li Heng Luo
Chapter 4: Material Science and Technology
Abstract:In order to explore whether the step gating system played a role in lost foam casting (LFC) process, this paper simulated the mold filling...
940