Finite Element Analysis on Temperature-Stress of Permeable Refractory Ceramic under Working Process in Ladle

Hua Zhi Gu; Ao Huang; Hou Zhi Wang

doi:10.4028/www.scientific.net/KEM.434-435.154

Paper Titles

Effect of Silica Coating on the Thermal Stability of Tantalum Based Nitrides Pigments
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Influences of SrSO₄ and Ag on High Temperature Tribological Properties of Spark-Plasma-Sintered ZrO₂(Y₂O₃)-Al₂O₃ Composites
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Liquid Oxide Flow during Oxidation of Zirconium Diboride-Silicon Carbide Ultra High Temperature Ceramics
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Nonlinear Elastic Deformation of MAX Phases
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Finite Element Analysis on Temperature-Stress of Permeable Refractory Ceramic under Working Process in Ladle
p.154

Convective Heat Transfer Steady Thermal Stress in a ZrO₂/FGM/Ti-6Al-4V Composite ECBF Plate with Temperature-Dependent Material Properties
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Processing and Characterization of Nano Silicon Carbide Ceramics via Precursor Pyrolysis
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Synthesis, Microstructure and Mechanical Properties of ZrB₂ Ceramic Prepared by Mechanical Alloying and Spark Plasma Sintering
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Detection of Amorphous Silica in Air-Oxidized Ti₃SiC₂ at 500–1000°C by NMR and SIMS
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Finite Element Analysis on Temperature-Stress of Permeable Refractory Ceramic under Working Process in Ladle

Abstract:

According to the practical physical dimension and processing parameters of ladle with bottom gas blowing in a factory, a geometrical model was established and mesh structure was completed, Eulerian multiphase model and porous media model were adopted for the two-phase flow in ladle, which was coupled, the effect of temperature field and thermal stress in course of working process of permeable- gas refractory ceramic was studied by finite element approach. The correlations between processing, structure, and high-temperature mechanical properties were discussed, and the material and structure of permeable-gas ceramic were designed to optimum. The results show that: The steady gas flow rate can avoid wearing of permeable-gas refractory ceramic from cataclysm of temperature-stress; After the material and structure of permeable-gas refractory ceramic are optimized, the effect on ceramic wearing of temperature-stress in condition of oxygen washing is weakened. It is an important guiding for prepara- tion of permeable-gas refractory ceramic with long life, which will make for highly active refining ladle.