METHOD FOR CONTROL OF THE VORTEX FLOW INTENSITY BY CHANGING THE BOTTOM POSITION IN A DC ARC FURNACE WITH A BOTTOM ELECTRODE

This paper describes methods and approaches for numerical simulation of liquid metal fl ows in a direct current (DC) arc furnace with a bottom electrode. The model for numerical simulation takes into account an actual bottomelectrode arc furnace and is based on magnetohydrodynamic equations. The distributions of the Lorentz force, temperature, and the vortex fl ow velocity are presented. The method to control and reduce the vortex fl ow intensity in a liquid metal volume by changing the furnace bottom position is worked up. The results of the numerical simulation show a possibility to reduce a negative infl uence of the vortex fl ow of a liquid metal up to 50%.
   
Author:  O. V. Kazak
Keywords:  DC arc furnace, electrovortex fl ow, convection, numerical simulation, bottom electrode
Page:  1002