矿热炉电/磁/热多物理场耦合热应力场分析
Analysis on Electro/Magnetic/Thermal Multiphysics Coupled Thermal Stress Field of Mine Heat Furnace
杜锦奇 1刘鹏 1孙昊 1栗亚奇 1张越 1王翠华1
作者信息
- 1. 沈阳化工大学机械与动力工程学院,辽宁 沈阳 110142
- 折叠
摘要
为了探究交流电矿热炉在稳定工作时炉体热应力分布情况,建立了一种大型矿热炉电/磁/热多物理场耦合多相流传热传质和热应力计算模型,采用Fluent软件用户自定义函数(UDFs),实现炉内电热转化现象(电弧热和电阻热)、矿料熔化传热、电/磁/热多物理场耦合仿真分析,探究交流矿热炉在多物理场耦合工况下矿料/熔渣/合金液/炉衬多相间的传热传质机理,并结合热-结构耦合法,开展大型矿热炉工作状态下炉衬热应力仿真计算,精确预测炉衬变形位置和变形量.结果表明:随着电极插入深度的增加,炉膛内的压力与炉体形变量都会降低.
Abstract
In order to explore the distribution of thermal stress of the furnace body during stable operation,a large-scale ore furnace electrical/magnetic/thermal multiphysics coupled multiphase flow heat transfer mass transfer and thermal stress calculation model was established,and Fluent software user-defined functions(UDFs)were used to realize the electrothermal conversion phenomenon(arc heat and resistance heat),ore melting heat transfer,electrical/magnetic/thermal multiphysics coupling simulation analysis in the furnace,and the heat and mass transfer mechanism of ore/slag/alloy liquid/furnace lining in AC ore furnace under multi-physical field coupling conditions was explored,combined with the thermal-structure coupling method,the simulation calculation of the thermal stress of the furnace lining under the working condition of the large-scale mine hot furnace was carried out,and the deformation position and deformation amount of the furnace lining were accurately predicted.The results showed that with the increase of electrode insertion depth,the pressure in the furnace and the shape variable of the furnace body decreased.
关键词
矿热炉/热应力场/炉衬变形/仿真模拟Key words
Submerged arc furnace/Temperature field/Furnace Lining deformation/Numerical simulation引用本文复制引用
出版年
2024
NETL
NSTL
万方数据