Stirring Effect of Bottom Regiments Arrangement on the Molten Pool in a 260 t Converter

For this article, the bottom regiments distribution is designed to investigate instantaneous kinetic energy of molten pool with help numerical simulation. The results indicate that time required for reach stable state affected by angle among regiments. When blowing gas flowrate 720 Nm3·h−1, shorter equilibrium 66 s 15°. Meanwhile, higher 2915 J has been discovered as outer kept at a pitch circle diameter ratio 0.5, which reflects preferable internal dynamic conditions liquid steel. While can get enough stirring force, and cluster should not be arranged closely furnace wall avoid unnecessary dissipation. Besides, weak zones inside bath reduced elevation intensity, proportions proper scheme are 0.84, 0.74, 0.69, 0.67 under four diverse operation conditions, respectively.