Abstract:

Through the flow inspection and the analysis, increases the original rubbing craft a section of closed circuit grindings flow to change section of rubbings, the sorting machineoverflow enters the cyclone graduation rubbing once flow; The flotation flow by orig inalmixes partially elects one
thick one sweep one fine changes two thick, one rough and stra ightforw ardmeets delivers them ixore concentrate, three sweeps, an essence, makes the golden returns- rat io to enhance 4% , the copper returns- ratio enhances 3%, the benefit is extremely considerable.

Key words: Flotat ion process, Rubbing, Inspection graduation, Flow improvement, Target enhancement