双叶轮浸出搅拌槽在搅拌过程中需补充氧气参与金与氰化销的反应．传统的加氧方式是在四周加空气．空气的需用量大。后改为从中心轴加空气，空气的需用量少，且效果很好，但是下部轴过长，加工长孔困难，工人劳动强度大，制造成本高。1改进办法（1）将实心轴用钢管代，钢管材质 Double impeller leaching stirred tank in the mixing process to be added oxygen to participate in gold and cyanide sales reaction. The traditional way of adding oxygen is to add air around. The amount of air required. After the air instead of the central axis, the amount of air required less, and the effect is very good, but the lower shaft is too long, long hole processing difficulties, workers labor-intensive, high manufacturing costs. 1 ways to improve (1) the solid shaft steel pipe, steel pipe material