重选重点是研制产量更高、处理细粒和超细粒矿物的设备。 Delorme等人报导了自1950年以来全世界应用Fives-Cail-Babcock重介质选矿机的情况。另外还介绍了处理从Perla露天采矿场开采出来的墨西哥铁矿的洗矿厂的情况。极不均匀的矿石含赤铁矿、假象赤铁矿和磁铁矿,平均含铁量是42～52%。0～6毫米部分是在采用三个直径为500毫米的与 The focus of re-election is to develop equipment that produces higher volumes and processes fine and ultrafine minerals. Delorme et al. Reported on the worldwide application of the Fives-Cail-Babcock HM separator since 1950. The case of a washing plant handling Mexican iron ore mined from the open-air Perla field is also covered. Extremely inhomogeneous ores contain hematite, artifact hematite and magnetite, with an average iron content of 42-52%. The 0-6mm section is in use with three diameters of 500mm