Effect of Top and Bottom Blowing Conditions on Metallurgical Characteristics in Converter
2000 Volume 86 Issue 10 Pages 654-659
Details
2000 Volume 86 Issue 10 Pages 654-659
Experimtents were carried out in 2×103 kg converter in order to quantitatively evaluate the contributions of condition of top and bottom blowing to critical carbon content, Cp and (T. Fe) in slag. Cp decreased and (T. Fe) in slag increased as increasing the bottom stirring power and ratio of cavity depth to bath depth, L/Lo. Effect of L/Lo could not be explained by conventional indices such as ISCO, BOC and I because they did not take top blowing condition into consideration precisely. Newly defined index for carbon oxidation, ICO, was introduced to attain good correlation between operational conditions and (T. Fe) in slag.
ICO= 4.2×103·(Q/W)·(L/Lo)-0.4·ε-0.33·[C]-1
