Melt azimuthal rotation in direct current electric arc furnace without external axial magnetic field

IF 1.1 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC International Journal of Applied Electromagnetics and Mechanics Pub Date : 2024-01-30 DOI:10.3233/jae-230173

S. Pavlovs, A. Jakovičs, Alexander Chudnovsky

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Abstract

This paper considers the azimuthal rotation of melt about the vertical axis of a DC EAF, which is ensured by an inclined installation of the power supply electrodes, which is a patented solution that is the basis for this article. Near inclined electrodes, the Lorentz force has a pronounced azimuthal component, which is the driver of the melt rotation without an external axial magnetic field – thus, additional energy consumption to create an external magnetic field is not necessary. The main design and technological solutions, formulated in the patent and presented by the authors, were obtained using observations and numerical LES study for a laboratory-scale experimental setup (capacity 4.8 kg of GaInSn), as well as using LES computations for an industrial-scale DC EAF (capacity 3.6 t of molten steel). Basic technological solutions studied: the flow of the melt may be controlled by varying the number of vertical and inclined electrodes of DC EAF, choosing the angle of inclination of the electrodes as well as choosing the sequence of turning on and turning off power supply through the electrodes.

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无外部轴向磁场的直流电弧炉中的熔体方位旋转

本文探讨了直流电弧炉熔体绕垂直轴的方位旋转问题，供电电极的倾斜安装确保了熔体的方位旋转，这是一种专利解决方案，也是本文的基础。在倾斜电极附近，洛伦兹力具有明显的方位角分量，它是熔体在没有外部轴向磁场的情况下旋转的驱动力，因此无需消耗额外的能量来产生外部磁场。作者在专利中提出的主要设计和技术解决方案，是通过对实验室规模的实验装置（容量为 4.8 千克 GaInSn）进行观察和数值 LES 研究，以及对工业规模的直流电弧炉（容量为 3.6 吨钢水）进行 LES 计算而获得的。研究的基本技术解决方案：可通过改变直流电弧熔炉垂直和倾斜电极的数量、选择电极的倾斜角度以及选择通过电极打开和关闭电源的顺序来控制熔液的流动。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Applied Electromagnetics and Mechanics 物理-工程：电子与电气

CiteScore

1.70

自引率

0.00%

发文量

100

审稿时长

4.6 months

期刊介绍： The aim of the International Journal of Applied Electromagnetics and Mechanics is to contribute to intersciences coupling applied electromagnetics, mechanics and materials. The journal also intends to stimulate the further development of current technology in industry. The main subjects covered by the journal are: Physics and mechanics of electromagnetic materials and devices Computational electromagnetics in materials and devices Applications of electromagnetic fields and materials The three interrelated key subjects – electromagnetics, mechanics and materials - include the following aspects: electromagnetic NDE, electromagnetic machines and devices, electromagnetic materials and structures, electromagnetic fluids, magnetoelastic effects and magnetosolid mechanics, magnetic levitations, electromagnetic propulsion, bioelectromagnetics, and inverse problems in electromagnetics. The editorial policy is to combine information and experience from both the latest high technology fields and as well as the well-established technologies within applied electromagnetics.