Hydraulics and Mathematics Simulation on the Weir and Gas Curtain in Tundish of Ultrathick Slab Continuous Casting

Chen, Dengfu; Xie, Xin; Long, Mujun; Zhang, Min; Zhang, Leilei; Liao, Qi

doi:10.1007/s11663-013-9941-6

Cited by 49 publications

(32 citation statements)

References 15 publications

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“…The ongoing research studies are related to various aspects of the steel casting technology, including flow, changes in flow conditions, flow control devices (FCD), residence time distribution, heat transfer, distribution and transportation, as well as, the outflow of non-metallic inclusions in the bath of molten metal [4][5][6][7][8][9]. Qualitative and quantitative assessment of the flow and oscillation of steel in the tundish is being performed based on the analysis of a set of characteristics.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Steel Flow in the Tundish by Modifying its Working Area

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Hutny

Warzecha

et al. 2016

Archives of Metallurgy and Materials

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Presented paper describes model investigations carried out on six-strand continuous casting tundish. Numerical analysis is based on simulations performed with the use of commercial code ANSYS Fluent. The analysis concerns determination of hydrodynamic conditions of the flow in the analysed tundish, with nominal capacity of 22 Mg, and its optimisation by modification of the flow structure in the tundish working area. Four different flow control devices (FCD) were proposed.Results of investigations presented in the paper include the distribution of velocity vectors and distribution of temperature and turbulence kinetic energy. Additionally, for more detailed comparative analysis, the macroscopic characteristics of residence time distribution (RTD) in the reactor, and the transition zone ranges were determined for each of the variants.

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Section: Introductionmentioning

confidence: 99%

Optimization of Steel Flow in the Tundish by Modifying its Working Area

Warzecha

Hutny

Warzecha

et al. 2016

Archives of Metallurgy and Materials

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“…Sheng CHANG, 1,2) * Xiangkun CAO, 2,3) Zongshu ZOU, 1) Mihaiela ISAC 2) and Roderick Ian Lawrence GUTHRIE 2) 1) School of Metallurgy, Northeastern University, Shenyang, Liaoning, 110819 P. R. China.…”

Section: Micro-bubble Formation Under Non-wetting Conditions In a Fulmentioning

confidence: 99%

“…[1][2][3][4] During bubble flotation, non-wetting inclusions can be attached to bubble surface, 5) or captured by rising bubbles' wakes.…”

Section: Introductionmentioning

confidence: 99%

Micro-bubble Formation under Non-wetting Conditions in a Full-scale Water Model of a Ladle Shroud/Tundish System

et al. 2018

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“…Besides, the upward flow caused by bubbles floating out of the bath, homogenizes liquid steel temperatures and composition. As such, gas bubbling is widely accepted [17][18][19][20][21][22][23][24] as an effective method for deeply cleaning the liquid steel in continuous casting operations. Zhang et al 25) reviewed the mechanisms of inclusion removal from molten steel by bubble flotation.…”

Section: Removal Of Inclusions Using Micro-bubble Swarms In a Fourstrmentioning

confidence: 99%

Removal of Inclusions Using Micro-bubble Swarms in a Four-strand, Full-scale, Water Model Tundish

et al. 2016

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Water model experiments were performed in a full-scale, delta-shaped water model tundish, in order to study the removal of inclusions by micro-bubbles. Micro-bubbles were generated using a specially designed ladle shroud with twelve laser-drilled orifices. Gas flow rates, injection positions and multi-port injection were all taken into consideration to create different bubble conditions. Bubbles were recorded using a high speed camera and post-processed with commercial software, Image J. Hollow glass borosilicate microspheres, smaller than 100 μm, were used to simulate inclusions, and detected, in-situ, using a new generation of the Aqueous Particle Sensor, APS III. The results revealed that the effect of microbubbles on inclusion removal depends greatly on the gas injection protocols used. The optimum gas flow rate was an intermediate value, which indicates a minimum particle number density, n p , of about 7.85/ml. This results from the counter-balancing effects of bubble sizes against the total number of bubbles. The highest inclusion removal rate was 80%, when gas was injected through the four ports located closest to the slide gate, at a gas flow rate of 0.2 L/min.

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Hydraulics and Mathematics Simulation on the Weir and Gas Curtain in Tundish of Ultrathick Slab Continuous Casting

Cited by 49 publications

References 15 publications

Optimization of Steel Flow in the Tundish by Modifying its Working Area

Optimization of Steel Flow in the Tundish by Modifying its Working Area

Micro-bubble Formation under Non-wetting Conditions in a Full-scale Water Model of a Ladle Shroud/Tundish System

Removal of Inclusions Using Micro-bubble Swarms in a Four-strand, Full-scale, Water Model Tundish

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