Benchmarking: Bond/Barratt Circuit Specific Energy Consumption - Copper Mountain
- Morrison, R., Current Plant Conditions at Copper Mountain. Presentation to the BC/Yukon Branch Canadian Mineral Processors, November 29, 2012; Vancouver, Canada.
Result for default model conditions:
|
|
Tonnage
|
| Model
|
1455 t/h
|
| Measured
|
1600 t/h
|
| Difference
|
145 t/h
|
| Difference
|
9.5%
|
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Benchmarking: Bond/Barratt Circuit Specific Energy Consumption - Fort Knox
- Magnuson, R.; Hallow, J.; Mosher, J.; Major, K., The Fort Knox Mill: Design, Commissioning and Operation. Proceedings of the SAG 2001 Conference, Vancouver, Canada.
Result for default model conditions:
|
|
Etotal
|
WiO
|
|
Tonnage
|
|
| Model
|
11.95
|
16.60
|
kWh/t
|
1,522
|
t/h
|
| Measured
|
10.50
|
13.97
|
kWh/t
|
1,733
|
t/h
|
| Difference
|
1.45
|
2.63
|
kWh/t
|
211
|
t/h
|
| Difference
|
12.9%
|
17.2%
|
|
12.9%
|
|
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Benchmarking: Bond/Barratt Circuit Specific Energy Consumption - Meadowbank
- Muteb, P. & Allaire, J., Meadowbank Mine Process Plant Throughput Increase, Proceedings of the Canadian Mineral Processors Annual General Meeting, Ottawa, Canada, January 2013.
Paper describes a "sick" SAG mill and the changes made to "bring it to health". The "healthy" mill conditions benchmark as follows:
- Actual SAG/ball motor powers (at shell): 3,168 kW / 4,105 kW
- Actual daily average throughput: 500 tonnes/hour
- Predicted SAG/ball motor powers (at shell): 3,096 kW / 4,182 kW
- Predicted nominal throughput: 500 tonnes/hour (0% difference)
|
SAG |
Ball Mill |
total
|
| Measured specific energy consumption, kWh/t |
6.34 |
8.21 |
14.55
|
| Predicted specific energy consumption, kWh/t |
6.19 |
8.36 |
14.55
|
| Difference, kWh/t |
-0.15 |
0.15 |
0.00
|
| Difference, % |
-2.3% |
1.8% |
0.0%
|
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Benchmarking: Bond/Barratt Circuit Specific Energy Consumption - Santa Rita
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