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MOGALAKWENA MINE
Real Mining. Real People. Real Difference.
Mogalakwena Mine: mutual coexistence of mining selectivity with the effectiveness and efficiency of high volume mechanised mining and processing
November 9. 2015T. Muzondo & V, Netshivhangoni
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Agenda
• Introduction
• Geological model
• The Miner’s Mine
• The Metallurgist’s Mine
• Planner’s Mine
• Way Forward
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Introduction: Geological Setting
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Reef model detailing-3D
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• Shear size• 45o dip
angle• 1: 10 waste
stripping
N
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Reef model detailing-3D
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• Shear size• GT curve• Low grade-
high tonnage-processing constraint
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Reef model detailing-3D
•The variable grades, mineralised thickness, alteration, gangue minerals and value minerals + the poly-metallic nature 6
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Reef model detailing- On Plan
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• Oblate search ellipsoids, long on strike
• 10m x 10m sampling grid
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Reef model detailing-On Cross Section
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• Oblate search ellipsoids, longest along dip
• Different mining regimes
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The Miner’s Mine• Large equipment, bulk mining• Low cost, economies of scale• Good for waste striping and a few ore areas
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The Metallurgist’s Mine
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• Homogeneity of ore feed• Poly-metallic content• Alteration of gangue minerals• Variation of ore minerals
• Feed material in campaigns/batches with notifications in advance
• Inherent variation is in ore, many parameters not additive, blending complicated
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The Planner’s Mine Mining Parameters
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The Planner’s Mine-Equipment Selection
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MT 3700 Pit Vipers
MT 4400 DML
KOMATSU 930E DSK
RH 200
RH 340
RH 400
WK 55
• Mining Equipment selection supports Miner’s world
• Minimises Mining cost through improved economies of scale
• Reduces equipment setup times, increases productivity
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The Planner’s Mine
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The Planner’s Mine-Prices and Costs
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The Planner’s Mine-Prices and Costs
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Mogalakwena- the way forward• A well understood geological resource- can never
drill enough!• A well planned reserve and a continually improving
execution plan• A well skilled/disciplined miner, more and smarter• A dynamic stockpiling strategy• An adjustable campaign fed processing multi-
parametric strategy , geo-met optimised• Intelligent mining and process monitoringsystems
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