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A view on mechanisation
Declan Vogt
“Day of Learning” on
“Value Added Drilling and Blasting Practices”
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CMMS: Who are we?
• Academic institution– Teaching– Research
• Industry institution– Get mechanisation
implemented in mines
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What do we do?
• Education• Systems thinking• Thought leadership
Technology
Process
System
People
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Agenda
• A vision of the future• Bringing it home• Some questions• Conclusion
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RockTech Centre – Sustainable Mine and Innovation for the Future
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One control room
• Information from:• Rock• Personnel• Machinery
• Fine tuned process
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No human presence in production areas
• All processes remote controlled or automated
• Maintenance in safe areas• All electric – no diesel
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Continuous mechanical excavation
• The future mine is a lean mine• Continuous process required
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Pre-concentration
• Barren rock is separated underground
• Minimize energy• Minimize environmental
impact
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Resource characterization - mineralogy
• Product control at face• Maximize in situ value
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Resource characterization – structural control• Structures are mapped for
process control
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Final product
• Waste rock becomes products• Metal manufactured on site• Greater value add contributes
to richer social life
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Agenda
• A vision of the future• Bringing it home• Some questions• Conclusion
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We are under pressure
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Productivity is going down
PWC, Mining for efficiency, August 2014
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Platinum cost curve
Baxter, Platinum state of the nation, January 2014
Price12/11/14
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Gold cost curve
Citi reported in http://juniorgoldminerseeker.blogspot.com
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Modernise
• Costs must come down• Safety must go up• Continuous production
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It was done in coal
Conventional CM
Tonnes per week 10 000 15 000
Shifts per week 17 11
Crew size/shift 30-35 12-14
Tonnes/man shift 17 100
For one coal section, historical conventional performance compared to currentcontinuous miner performance (pers comm.)
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Agenda
• A vision of the future• Bringing it home• Some questions• Conclusion
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Can mechanisation work everywhere?
• Old shafts– Size for access– Size for ventilation– Capital cost vs life of mine
• Orebodies– Dip– Thickness– Hardness
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Can we make machines in SA?
Google Maps/JoyGlobal Bell Equipment
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Time horizons
• Perceived high risk• High capital cost• System change
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Explosives are pretty good, aren’t they
Source: Sandvik Mining and Construction
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Does the blast not help in dissipating seismic activity?
• Change from rapid to continuous
• Damage• Re-entry times• Backfill
Stacey, Journal of SAIMM 112:8
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The labour issue
• Jobs will move• People will be safer• Jobs will be more rewarding
Sibanye Gold
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Agenda
• A vision of the future• Bringing it home• Some questions• Conclusions
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Conclusions
• Mechanisation is coming– but not to all mines
• In the meantime: drilling and blasting is part of a system– The system improves if the drilling and blasting is
improved
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Acknowledgements