China Nonferrous Metallurgy

In this paper, the standard -k-ε- turbulence model and VOF model are selected to study the scale-up effect of bottom-blown furnace under four different scale-up criteria by numerical simulation. The scale-up criteria are power consumption per unit volume (P/V), modified Froude number (Fr′), Reynolds number (Re) and flow per unit volume (Q/V). The results show that: the distribution characteristics of velocity field in bottom-blown furnace are basically unchanged under different scale-up criteria; The mixing time of different monitoring points is also different, but it is reduced by the influence of measuring position at a larger flow rate; scale-up of equal