512 Figure 28 – JKSimMet model flowsheet for Phase I Grinding circuit. Figure 29 – JKSimMet Model flowsheet for Phase II Grinding Line SAG Total Load (Exp) 25.0 Total Load (Calc) 25.0 CYC Units in Parallel 40 Pressure, kPa (Exp) 90.0 Pressure, kPa (Calc) 90.0 Ball Mill 2-Prod 7,093.0 7,139.8 0.6 0.6 62.8 62.8 6,580.2 6,625.2 TPH - Solids (Exp) TPH - Solids (Sim) P80 (Exp) P80 (Sim) % Solids (Exp) % Solids (Sim) Volume Flow (Exp) Volume Flow (Sim) Trommel Screen-U/S 4,476.0 4,476.0 4.0 3.5 71.1 70.7 3,319.8 3,353.4 Pebble Cruhser-Prod 653.0 726.9 16.6 19.3 97.6 99.8 235.1 245.4 CYC-O/F 4,476.0 4,475.9 0.2 0.2 29.7 29.5 12,082.2 12,178.5 CYC-U/F 14,186.7 14,279.5 1.1 1.2 80.4 80.4 8,225.8 8,264.1 Cyc Feed 18,662.7 18,755.4 0.8 0.8 57.1 57.0 20,307.9 20,442.6 Ball Mill 1-Prod 7,093.0 7,139.8 0.6 0.6 62.8 62.8 6,580.1 6,625.2 SAG-Prod 5,150.0 5,202.9 8.2 7.3 73.7 73.7 3,562.5 3,598.8 Feed 4,476.0 4,476.0 41.3 41.3 96.0 96.0 1,688.5 1,688.5 Trommel Screen-O/S 653.0 726.9 37.2 38.6 97.6 99.8 235.1 245.4 CYC Units in Parallel 14 Pressure, kPa (Exp) 88.00 Pressure, kPa (Calc) 87.14 Baseline Model Pebble Crusher Power (Calc) 539.92 Trommel1-O/S 429.18 97.31 169.65 46.93 SAG-Prod 2,408.18 73.10 1,771.54 8.25 Ball Mill-Prod 5,490.86 66.26 4,814.68 0.51 Sump-Prod 7,469.84 55.80 8,663.23 0.59 CYC-U/F 5,490.86 80.55 3,344.54 0.82 CYC-O/F 1,978.98 30.12 5,318.69 0.17 Trommel-U/S 1,979.00 62.76 1,901.90 1.45 SAG Feed 1,979.00 96.00 810.03 74.64 Pebble Crusher-Prod 429.18 97.31 169.65 13.71 TPH - Solids (Sim) % Solids (Sim) Volume Flow (Sim) P80 (Sim)
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