REFRACTORY MATERIALS FOR METALLURGICAL USES A Method for Steel Ladle Lining Optimization Applying Thermomechanical Modeling and Taguchi Approaches

This paper presents a novel approach to optimize refractory lining in steel ladles using thermomechanical modeling combined with Taguchi methods. The objective is to improve design efficiency and reduce premature wear of linings, which are critical for high-temperature metallurgical processes. A comprehensive methodology is implemented, involving finite element (FE) modeling for thermomechanical analysis, coupled with an orthogonal array to design various lining configurations. The efficacy of different factors affecting thermal and mechanical responses is evaluated through statistical techniques such as analysis of variance and signal-to-noise ratio. The results indicate two optimal lining concepts that utilize commercially available materials, demonstrating significant reductions in heat loss and thermomechanical stress at the hot face of the lining. This innovative integration of FE modeling with Taguchi methodologies not only aids in selecting the appropriate materials and thicknesses but also contributes to enhancing energy efficiency in metallurgical applications. Ultimately, the findings provide a systematic framework for future lining designs in steel ladles, promoting more sustainable and effective metallurgical practices.