Numerical Simulation for the Mixing Process of Converter with Preheating Oxygen

By making use of the heat of converter fume, a way to preheating the top-blowing oxygen has been proposed and researched. The three-dimensional model has been developed to analyze the mixing process of molten bath in converter with preheating oxygen. The volume of Fluid (VOF) method was employed to model three-phases including oxygen, molten steel, and liquid slag to simulate the behaviors of molten bath. The results show that as temperature of oxygen is raised from 300 K to 1200 K, the impacting depth, impacting diameter and velocity of molten bath first Increase obviously, and then decrease. The research results revealed a way of the heat of fume utilization, and the optimized preheating temperature of oxygen was obtained.