SAG MILL DISCHARGE SCREENSTROMMEL vs. VIBRATING .
Kennecott''s Copperton concentrator, which we started up in 1988, two of the three grinding lines used both types of screens and on line two we used only a trommel. I''ve got to explain this a little bit. This flowsheet is typical of lines 1 and 3. The SAG mill has a trommel on the discharge end of it. Oversize is returned to the mill by a bucket