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进行了机械搅拌式浮选机中充填单层与双层填料考查对其浮选性能的影响的试验，结果表明，单层填料仅改变回收率，而双层填料不仅有利于提高回收率，而且可提高精矿质量。
Experiments were carried out to investigate the effect of single-layer and double-layer fillers on the flotation performance of mechanical agitated flotation machines. The results show that the single-layer fillers only change the recovery rate, while the double-layer fillers not only help to improve the recovery rate, Can improve the quality of concentrate.