Finite Element Analysis on Temperature-Stress of Permeable Refractory Ceramic under Working Process in Ladle
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.
Wei Pan and Jianghong Gong
H. Z. Gu et al., "Finite Element Analysis on Temperature-Stress of Permeable Refractory Ceramic under Working Process in Ladle", Key Engineering Materials, Vols. 434-435, pp. 154-157, 2010