2019 Pittsburgh AISTech

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Fluid Flow Turbulence in the Proximities of the Metal-Slag Interface in Ladle Stirring Operations (Room 410)

Three-phase interactions (metal-slag-argon) in ladle stirring operations have strong effects on the metal-slag mass transfer processes. Specifically, the thickness of the slag controls the fluid turbulence to an extent that, once reaching a critical thickness, increases in stirring strength have no further effects on the flow. To analyze these conditions, a physical model considering the three phases was built to study liquid turbulence in the proximity of the metal-slag interface. The slag-eye opening was found to be strongly dependent on the stirring conditions, and the mixing times decreased with thinner slag thicknesses. Slag entrainment was enhanced with thick slag layers.