Correlation of Flow Establishment Time for Uniform Dispersion of Fine Particles in a Bath with an Immersion Cylinder

Abstract

Dispersion of fine particles in a hot metal bath is of essential importance for effective desulfurization and dephosphorization. Previous water model experiments revealed that rapid and uniform dispersion of fine particles in a mechanically agitated water bath can be achieved by immersing a circular cylinder slightly into the bath from its surface. Further water model experiments have been carried out in this study to derive an empirical equation for the period required for the uniform dispersion. This period is named the flow establishment time. Three types of impellers are chosen to take into account the effects of the shape and size of impeller on the flow establishment time.