为了获得充气水力旋流器在用以控制大密度有用矿物过磨的进一步研究中其结构及操作参数优化的理论基础，本文采用改进型充气水力旋流器处理了含铜多金属硫化矿物，研究了其结构参数和操作参数对其分级与富集特性的影响。结果表明，溢流口直径、进料压力、充气量、捕收剂用量和起泡剂用量都宜较大，底流口直径宜较小，而溢流管插入深度及处理矿浆浓度均宜适中。 In order to obtain the theoretical basis of the structure and operation parameters optimization of the inflatable hydrocyclone in further research to control the over-grinding of high-density and useful minerals, a modified aerated hydrocyclone was used to treat the copper-bearing polymetallic sulfide minerals. The structural parameters and operating parameters of its classification and enrichment characteristics. The results show that the diameter of overflow port, feed pressure, aeration capacity, collector dosage and foaming agent dosage should both be relatively large, and the diameter of the bottom outlet should be smaller. The depth of overflow pipe and the concentration of treated pulp should be moderate.