The result shows that lime consumption, quantity of slag, and Fe loss exist the best point with the increase of semisteel [P] and decline along with the increase of deslagging quantity.

• 计算结果发现，总石灰消耗、总渣量、铁吹损量随半钢中磷的增加存在最小值，且随中间倒渣量的增加而减小。