Multiphase flow numerical simulation of ladle bottom powder injection

[摘要] Numerical simulations were performed on bottom injection of calcium oxide particles through double nozzle porous bricks into a 300 t hot metal ladle. The distribution characteristics of the calcium oxide particles in the ladle were predicted and analyzed. The modeling results show that, when the bottom blown porous bricks are located symmetrically off-centre by 1 / 2 ladle bottom radius and the injection speed of the calcium oxide particles is 7 m / s, an optimum distribution of the calcium oxide particles in the hot metal bath in the ladle can be achieved. This will provide a reference for evaluating the feasibility of applying bottom injection of the calcium oxide powder into hot metal ladles for desulfurization in the actual production process.

[学科分类] 金属与冶金

[关键词] hot steel pretreatment;calcium oxide;desulfurization;bottom powder injection;numerical simulation