The Coalition for Energy Efficient Comminution CEEC
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The Coalition for Energy Efficient Comminution CEEC A not-for-profit company, supported by industry donations Energy Efficiency In Comminution Is this a worthwhile investment amidst times of low fuel prices?
Transcript of The Coalition for Energy Efficient Comminution CEEC
The Coalition for Energy Efficient ComminutionCEEC
A not-for-profit company, supported by industry donations
Energy Efficiency In Comminution
Is this a worthwhile investment amidst times of low fuel prices?
Key strategic outcomes of CEEC roadmap
Measure performance and produce benchmarks that allow energy efficiency performance to be quantified and evaluated.
Adopt best practice in technology.
Identify and implement appropriate business drivers and KPIs.
Communicate the benefits, motivate, engage and train.
Why Comminution?
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The march of innovation
20141935
Citic Pacific AG mills, 40’, 26 MW (x 6)
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Things are getting worse….
• Efficient classification is key to efficient comminution.
What have we learned in the last 20 years?
• What are our classification options?
CLASSIFICATION EFFICIENCY
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NPV sensitivity to energy saving and energy price, Screens Vs Cyclones
The relationship between classification efficiency and circulating load
Copyright © Hatch 2016. All Rights Reserved.
STACKED SCREEN INSTALLATION
Copyright © Hatch 2016. All Rights Reserved.
• Very fine grinding is economically possible with stirred mills.
What have we learned in the last 20 years?
IsaMill Vertimill
• HPGR has a role for the right ore and in the right flowsheet
What have we learned in the last 20 years?
Boddington, WA
• Pre-concentration is a real option
What have we learned in the last 20 years?
Jig
Sorter
DMS
Screen
• Novel flowsheets can reduce energy consumption
What have we learned in the last 20 years?
• 61% reduction in energy
• 3% increase in recovery
• More crushing, less grinding
Malcolm PowellJKMRC
Longer term research targets…
• Exploit fundamental understanding of breakage.
• 3-product cyclone / Classification Options.
• Pre-concentration.
• Improved metrics (eg kWh/t metal); benchmarking.
• Step Change In Comminution Technology -SelFrag.
Size of the database
Conclusions
Energy efficiency results in greater productivity and shareholder returns
Improving energy efficiency and productivity starts with benchmarking
Look at options by following the 4 step process
Communicate the benefits, motivate, engage and train.
CEEC’s vision
To demonstrate and promote energy-efficient comminution strategies improve productivity, energy efficiency and
shareholder value
