Induced Currents in the Lining and Steel Shell of Submerged Arc Furnaces

Abstract Numerical models in 2D and 3D are used to study induced currents the lining steel shell of large three-phase submerged arc furnaces. The alternating supplied through electrodes cause a significant amount power furnace shell. flow three loops with an accumulation current near top between electrodes. net result is thermal loss heat dissipated at surface. Furthermore, such may potentially damaging hot spots steel. If this persists over long time, thin deteriorate and, worst-case scenarios, be cracked or punctured. influence electrically conducting effect subdividing insulated sections have been studied. It shown that will shielding on considerably reduced steel, “pushed into” lining. size can restricted by into insulation each section. Such modification detrimental. Strong opposing formed side insulating gaps, leading higher concentrations increasing risk In addition, due enhanced. Graphical