ejercicio optimizacion jksimmet

1. BM/Cyc Optimisation Exercis
Optimisation Exercise - I
Find maximum feed rate subject to
– Max Overflow P80 = 282 µm
– Max cyclone feed flow = 2500 m3
/h
– Max # cyclones = 8
– Max cyclone pressure = 65 kPa
– Max ball mill feed % solids = 80 %
– Ball size 25mm – 75mm
– Min Overflow % solids = 30 %
– Available VF - 335 365 395
– Available Spig - 175 203 225
– No roping

2. BM/Cyc Optimisation Exercis
Optimisation Exercise - II
Best so far - 555 t/h
– Max cyclone feed flow = 2500 m3
/h 2499
– Max # cyclones = 8 7
– Max cyclone pressure = 65 kPa 49
– Max ball mill feed % solids = 80 % 80
– Min Overflow % solids = 30 % 37
– Available VF - 335 365 395 335
– Available Spig - 175 203 225 203
– Ball Size 64

3. BM/Cyc Optimisation Exercis
Optimisation Exercise - III
Ore hardness increases to 16 kWh/t
Restore circuit to non-roping
What is product P80 now?
Reduce feed rate as little as possible to get
back to 282 µm

4. BM/Cyc Optimisation Exercis
Optimisation Exercise - IV
Best so far - 500 t/h
– Max cyclone feed flow = 2500 m3
/h 2485
– Max # cyclones = 8 6
– Max cyclone pressure = 65 kPa 52
– Max ball mill feed % solids = 80 % 80
– Min Overflow % solids = 30 % 34.4
– Available VF - 335 365 395 395
– Available Spig - 175 203 225 225