Effect of Viscosity on Dynamic Evolution of Metallurgy Slag Foaming

The viscosity is of high significance for the dynamic evolution slag foaming in metallurgical processes. Through physical modelling, evolutions with different viscosities were analyzed by characterizing foam structure. Furthermore, effects on characteristic parameters investigated. experimental results indicated that types evolved along Partial Foaming I → Entire II increasing superficial gas velocity, while bubble shape top layers gradually transformed from spherical to non-spherical shape. Moreover, rise decreased critical velocity between various hindering transformation. Despite constant injection gas, “foam pseudo-decaying” phenomenon was observed after liquid level foamed reached its maximum, and this exacerbated under higher conditions. Under conditions, presented a considerable difference. lower had no obvious effect decaying rates, whereas, rates significantly viscosity. height peak value when developed into Foaming, basically consistent theoretical value. required reach