Difference between revisions of "Benchmarking: Specific Energy Consumption Models"

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==Benchmarking: Bond/Barratt Circuit Specific Energy Consumption - Santa Rita==
 
==Benchmarking: Bond/Barratt Circuit Specific Energy Consumption - Santa Rita==
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{|class="wikitable" border="1"
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! !!FAG!!BM!!Pebble<br>Crusher!!total
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|-
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| Measured specific energy consumption, kWh/t||9.55||7.28||0.34||17.18
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|-
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| Predicted specific energy consumption, kWh/t||10.26||7.84||0.40||18.50
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|-
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| Difference, kWh/t||0.71||0.56||0.06||1.32
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|-
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| Difference, %||7.2%||7.4%||14.9%||7.4%
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|}
   
 
[[Benchmarking: Bond - Santa Rita|Show details of benchmarking]]
 
[[Benchmarking: Bond - Santa Rita|Show details of benchmarking]]

Revision as of 22:59, 27 January 2013

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%


Show details of benchmarking

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%

Show details of benchmarking


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%

Show details of benchmarking

Benchmarking: Bond/Barratt Circuit Specific Energy Consumption - Santa Rita

FAG BM Pebble
Crusher
total
Measured specific energy consumption, kWh/t 9.55 7.28 0.34 17.18
Predicted specific energy consumption, kWh/t 10.26 7.84 0.40 18.50
Difference, kWh/t 0.71 0.56 0.06 1.32
Difference, % 7.2% 7.4% 14.9% 7.4%

Show details of benchmarking