钢包半钢脱磷复吹数值的模拟研究

Numerical simulation study on blowing of semi-steel dephosphorization in ladle

为研究承德钢厂100t钢包复吹对钢液的搅拌效果,利用Fluent软件对钢包在固定底吹模式下开展侧吹的流场进行数值模拟。结果表明,钢液流速、湍能、冲击面积都随侧吹流量增大而增大,熔池中速度死区逐渐降低,气体对熔池的搅拌能力也随之提高,加大侧吹气量对钢包渣层有搅拌效果,促进钢液的脱磷能力。

In order to study the stirring effect of combined blowing on liquid steel of the 100 t ladle in Chengde steel. The results show that, liquid steel velocity, turbulent kinetic energy, impact area increase with the side flow rate rises, the dead pool decreased gradually, the stirring ability of gas on the weld pool increases. Increase the side air blowing quantity has effect on the stirring of ladle slag layer, and it promotes the dephospborization ability of molten steel.