采用水力学模型试验，模拟ＡＮＳ－ＯＢ铝热法ＯＢ后处理精炼钢水中的［Ａｌ］Ｓ或（Ａｌ２Ｏ３）进入浸渍罩内数量变化，以及测定钢水罐中的浸渍罩内、外均匀混合时间长短，确定该精炼工艺钢水罐底部供气量和浸渍罩插入深度的最佳参数。结果是钢水罐底部供气量在０．１２～０．１４ｍ３／ｈ，浸渍罩插入深度３３ｍｍ时，浸渍罩内外均匀混合时间最短，模拟［Ａｌ］Ｓ或（Ａｌ２Ｏ３）的小球进入浸渍罩内的数量最多 Hydrodynamic model test was used to simulate the change of [Al] S or (Al 2 O 3) in the post-treatment refining steel of the AN-OB aluminum pyrometallurgical process into the impregnation cover, and the determination of the internal and external mixing time Length, to determine the refining process steel tank bottom gas supply and impregnation cover insertion depth of the best parameters. As a result, the gas supply volume at the bottom of the steel tank was 0.12-0.14m3 / h and the immersion hood was inserted at a depth of 33mm, the mixing time inside and outside the immersion hood was shortest, and the balls of [Al] S or (Al2O3) The largest number