细颗粒浮选选择性低的主要原因是机械携带及二次选别的泡沫层厚度不足。此外,传统浮选柱的缺点还有空气分散不充分,且起泡剂耗量大。充填式浮选柱则没有这些不足之处。实际上,这种浮选柱的整个容积装满了充填介质,介质是一组复杂的密接槽纹 The main reason for the low selectivity of fine particle flotation is the lack of thickness of the foam layer carried by the machine and the secondary sorting. In addition, the disadvantages of traditional flotation columns are inadequate air dispersion and high foaming agent consumption. Filled flotation columns do not have these shortcomings. In fact, the entire volume of the flotation column is filled with the filling medium, which is a complex set of intimate groove