冷凝矿热炉多物理场耦合数值模拟研究

doi:10.3969/j.issn.2095-2198.2023.05.011

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摘要

为探究冷凝矿热炉的熔炼过程，通过建立三维冷凝矿热炉电-磁-热-力耦合仿真模型，数值模拟了冷凝矿热炉内部多物理场间耦合机制，研究了不同电极插入深度对炉体温度和应力、应变的影响.结果表明：炉膛内电流沿四条路径流入和流出；电弧周围磁感应强度较大，最大值分布在电弧边缘；焦耳热最大值分布在电弧区周围；随着电极插入深度由1.8 m增至2.2 m，炉底镁砖温度逐渐升高，炉体的应力、应变也随之增大；炉壳外表面受到的环向拉应力大于轴向拉应力.

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关键词: 冷凝型矿热炉')" href="#">

冷凝型矿热炉数值模拟电磁场热应力热应变

Abstract:

To explore the smelting process of condensing submerged arc furnace,a three-dimensional electric-magnetic-thermal-mechanical coupling simulation model of condensing submerged arc furnace is established in this paper.The coupling mechanism between multiple physical fields in a condensing submerged arc furnace is numerically simulated.In addition,the influence of different electrode insertion depths on the furnace temperature,stress and strain is analyzed.The results show that the current in the furnace flows in and out in four paths.The magnetic induction intensity around the arc is larger,and the maximum value is distributed at the edge of the arc.The maximum joule heat value is distributed around the arc area As the electrode insertion depth increases from 1.8 m to 2.2 m,the temperature of the magnesia brick at the furnace bottom gradually increases,and the stress and strain of the furnace body also increase accordingly.The circumferential tensile stress on the outer surface of the furnace shell is greater than the axial tensile stress.

Key words: condensing submerged arc furnace')" href="#">

condensing submerged arc furnace numerical simulation electromagnetic field thermal stress thermal strain

出版日期: 2023-10-27 发布日期: 2024-06-06 整期出版日期: 2023-10-27

ZTFLH:

TF 33

基金资助:

辽宁省教育厅面上基金（LJKMZ20220775）

通讯作者: 刘鹏

作者简介: 张越（1995—），男，山西吕梁人，硕士研究生在读，主要从事矿热炉冶炼工程的研究.

引用本文:

张越, 刘鹏, 孙昊, 栗亚奇.

冷凝矿热炉多物理场耦合数值模拟研究 [J]. 沈阳化工大学学报, 2023, 37(5): 463-471.
ZHANG Yue, LIU Peng, SUN Hao, LI Yaqi.

Numerical Simulation of Multi-Physics Field Coupling in Condensing Submerged Arc Furnace . Journal of Shenyang University of Chemical Technology, 2023, 37(5): 463-471.

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https://xuebao.syuct.edu.cn/CN/10.3969/j.issn.2095-2198.2023.05.011 或 https://xuebao.syuct.edu.cn/CN/Y2023/V37/I5/463

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