A Method for Steel Ladle Lining Optimization Applying Thermomechanical Modeling and Taguchi Approaches
A Method for Steel Ladle Lining Optimization Applying Thermomechanical Modeling and Taguchi Approaches
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DOI：
10.1007/s11837-018-3063-1
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发表时间：
2018-08
期刊：
影响因子：
2.6
通讯作者：
Aidong Hou;S. Jin;H. Harmuth;D. Gruber
中科院分区：
文献类型：
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作者：
Aidong Hou;S. Jin;H. Harmuth;D. Gruber
成功的炉衬概念设计可以避免耐火材料的过早磨损，使耐火材料的配置更加经济高效，提高高温工艺的效率，节约能源。介绍了田口方法结合有限元模型从热力学和热力学角度对钢包衬里进行优化的方法。采用正交表设计了有限元模拟的衬砌结构。采用方差分析和信噪比定量评价各因素对热响应和热机械响应的影响。因此，提出了两种使用商业可得材料的优化衬里概念，这两种衬里通过钢壳的热损失和工作衬里热面的热机械负荷显著降低。有限元热机械模型和田口方法的结合应用有助于为给定的工艺条件选择合适的商业材料和衬里厚度。
Successful lining concept design can avoid the premature wear of refractory linings, allow for more economically efficient configuration of refractories, and improve the efficiency of high-temperature processes and save energy. The present paper introduces the Taguchi method combining finite element (FE) modeling for the lining optimization of a steel ladle from thermal and thermomechanical viewpoints. An orthogonal array was applied to design lining configurations for FE simulations. Analysis of variance and signal-to-noise ratio were used to quantitatively assess the impact of factors on thermal and thermomechanical responses. As a result, two optimal lining concepts using commercially available materials were proposed, which showed a substantial decrease in heat loss through the steel shell and thermomechanical load at the hot face of the working lining. The combined application of FE thermomechanical modeling and Taguchi approaches facilitates the selection of proper commercial materials and thicknesses of linings for the given process conditions.