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We have 2 discharge pipes from the cyclone underflow. 1 is a smaller diameter pipe going to gravity/scalping screens which then classify the product. Oversize from these screens report to mill discharge hopper. Undersize reports to gravity concentrators. A larger (separate) pipe carries the bulk of the cyclone underflow to the mill feedhead chute. for regrind. Some of this product from the larger diameter pipe may be suitable for gravity concentrators
My question is: Would it be advantageous to have a screen (or double deck screen) receiving ALL of the cyclone underflow? Undersize product from the screen deck/s would report directly to gravity concentrators. Oversize would report to the mill feed end.
Has anyone got or seen this type of set-up?