一个可靠的浮选柱按比例放大过程必须考虑3个重要的柱设计方面，即柱几何因素、鼓泡系统和冲洗水的分布网络。浮选柱的几何结构由最大泡沫运载能力（决定柱径）、气泡—矿粒的粘附速率和矿粒延迟时间（决定柱长）决定。一个空气鼓泡系统的按比例放大的最重要的因素是既在实验室又在工业规模的浮选柱中产生微泡的能力。其它因素，诸如能耗和维护的需要，气泡发生器的按比例放大中也应考虑。设计一个能适当地控制泡沫稳定和产生最大柱泡沫生产能力的冲洗水分布系统也是一个重要的因素。在这些判据的基础上，本文给出了一个成功的按比例放大实例。 A reliable flotation column scaling up process must consider three important column design aspects, namely column geometry, distribution network for bubbling system and flushing water. The geometry of the flotation column is determined by the maximum foam carrying capacity (determining the diameter of the column), the rate of bubble-particle adhesion and the grain delay (determining the column length). The most important factor in scaling up an air bubbling system is the ability to generate microbubbles both in the lab and on an industrial-scale flotation column. Other factors, such as the need for energy consumption and maintenance, should also be considered when scaling up the bubble generator. Designing a flushing water distribution system that adequately controls foam stability and maximizes column foam production is also an important factor. Based on these criteria, this paper gives a successful example of scaling up.