De Beers - Mintek

De Beers - Mintek

De Beers Leading Through Technology David Noko Managing Director De Beers Consolidated Mines And Domingos Valbom General Manager DebTech Diamonds a...

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De Beers Leading Through Technology David Noko Managing Director De Beers Consolidated Mines And

Domingos Valbom General Manager DebTech

Diamonds and De Beers Quality

Precious Moments

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The Diamond Pipeline ROUGH PROSPECTING

MINING

SORTING

SALES

POLISHED CUTTING & POLISHING

JEWELLERY MANUFACTURING

MARKETING

RETAILING

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De Beers’ Worldwide Footprint

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Global Economic Crisis

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Consumers still want diamonds Research shows women want “fewer, but better things”

Diamonds are a store of value Here Yesterday w Here Today w Here Tomorrow

Couples still get engaged and married

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Two things in life last longer than time…

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Exploration

Conceptual Studies

Projects

Mining

Processing

DTC Sort & Sales

Access to Ground

Leveraging technology to attract and enhance partnerships and facilitate access to ground

Ø Market De Beers’ differentiating technical capability: Ø Ø Ø Ø Ø Ø

Geophysics Mineral chemistry Expertise in plant design and construction World class diamond sorting technology Proven record with efficient plant operation and sweating assets DTC diamond sorting, sales and marketing

Successful government partnerships in Africa 8

Access to Ground

Conceptual Studies

Projects

Mining

DTC Sort & Sales

Processing

Exploration

Identification of potential deposits and speed up the evaluation of deposit Most kimberlites in Central Africa have high sediment cover and therefore poor accessibility airborne geophysical technologies such as magnetics and gravity are critical to the successful detection of kimberlites in these challenging areas. Ø Targeting - World cratonic targeting map Ø Discovery – applying latest geophysical and drilling techniques to discover Ø Deposit assessment – Sample treatment to assess content and grade, size distribution, value and size of ore body Ø Resource definition – apply economic model, stay or walk away

Log10 Micros

Log10 Macros

Data Fitted

Poly. (Estimate)

7 6 5

Log Spht/ui

4 3 2 1 0 -1 -2 -6

-5

-4

-3

-2

Log Size

-1

0

1

2

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Access to Ground

Projects

Exploration

Mining

Processing

DTC Sort & Sales

Conceptual Studies

Mineral Resource Management Focus is on reducing the total time and expenditure required to take a project from discovery to an operating mine by optimising sampling, estimation and evaluation processes Ø Development of new and advanced analytical techniques. Ø R&D efforts concentrated on: Ø

Geological characterisation

Ø

Diamond content

Ø

Diamond characterisation and valuation

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Access to Ground

Exploration

Conceptual Studies

Mining

Processing

DTC Sort & Sales

Projects

By applying mining and process simulation technology the optimum plant design can be obtained. Ore Dressing Studies predict the liberation and ore handling characteristics

FLAC3D 2.00

Jo b T itle: T un nel excavated - un dercu t step 5 mine d

Step 17000 Model Perspective 18:41:01 Sun Aug 15 1999 Center: X: -2.653e-001 Y: 7.499e+001 Z: -2.996e-001 Dist: 4.455e+002

Rotation: X: 0.296 Y: 0.000 Z: 359.966 Mag.: 2 Ang.: 22.500

Plane Origin: X: 0.000e+000 Y: 2.500e+001 Z: 0.000e+000

Plane Orientation: Dip: 90.000 DD: 0.000

Contour of SMin Plane: on Gradient Calculation -1.0727e+008 to -9.0000e+007 -9.0000e+007 to -8.0000e+007 -8.0000e+007 to -7.0000e+007 -7.0000e+007 to -6.0000e+007 -6.0000e+007 to -5.0000e+007 -5.0000e+007 to -4.0000e+007 -4.0000e+007 to -3.0000e+007 -3.0000e+007 to -2.0000e+007 -2.0000e+007 to -1.0000e+007 -1.0000e+007 to -2.1264e+006 Interval = 1.0e+007

Principal Stresses Plane: on Compression Itasca Africa (Pty) Ltd Johannesburg

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Access to Ground

Exploration

Conceptual Studies

Projects

Kimberlite

Processing

DTC Sort & Sales

Mining

Mine designs which meet the challenges of deep mines in weak rock………. Ø Safety – collision avoidance, slope and ground stability Ø Block Caving – rapid tunnel development, blasting technology Ø Support – membrane support Ø Automation – Finsch automated vehicles Ø Open pit to underground conversion Ø research into ‘Mine of Future’

Alluvial

Cut 5 Shell Design c5v3c

Meeting the challenges of estimating diamond concentrations and mining deeply buried and inter-tidal deposits Ø Ø Ø Ø

Seawalls Dredging Large scale earth-moving challenges Surf Zones 12

Access to Ground

Exploration

Conceptual Studies

Projects

Kimberlite

Processing

DTC Sort & Sales

Mining

Mine designs which meet the challenges of deep mines in weak rock………. Ø Safety – collision avoidance, slope and ground stability Ø Block Caving – rapid tunnel development, blasting technology Ø Support – membrane support Ø Automation – Finsch automated vehicles Ø Open pit to underground conversion Ø research into ‘Mine of Future’

Alluvial

Cut 5 Shell Design c5v3c

Meeting the challenges of estimating diamond concentrations and mining deeply buried and inter-tidal deposits Ø Ø Ø Ø

Seawalls Dredging Large scale earth-moving challenges Surf Zones 13

Access to Ground

Exploration

Conceptual Studies

Projects

Processing

DTC Sort & Sales

Mining

Marine Meeting the challenges of locating, estimating and mining deposits at 120 meters depth ØAutonomous Underwater Vehicle, Sampling, drill bit, crawler and dredging development ØProduction Efficiency - Reaching production target without increasing fleet (2 vessel = R4 billion saving) ØIncrease mineable reserve - Doubled mineable reserves by reducing cut off grade from 0.5 – 0.2 cts/m2

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Access to Ground

Exploration

Conceptual Studies

Projects

DTC Sort & Sales

Mining

Processing

Meeting the challenge of extracting the maximum value from the resource using appropriate technology Ø Liberation: Technology that delivers smart no damage liberation Ø Concentration: Applying Diamond Wizard simulations to optimise concentration processes Ø Recovery: Supply integrated diamond recovery and sorting technology delivering 98% of all +2 mm diamonds

Ø The development of effective Rapid Deployment Plants

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Access to Ground

Exploration

Conceptual Studies

Projects

DTC Sort & Sales

Mining

Processing

Automation & information: Technology that applies process rules to optimally control plant equipment

Mine Web Clients

Link to GTS Web Clients Mine IS Network Web Connection

Diamond control: Technologies that will contain 100% of diamonds through secure sorting and information as well as reliable body scanning deterrents

Web Connection Plant Control System PSS Server

Plant PLC Plant SCADA System

Recovery Machine Network

Recovery Machines

Overview Operator Waiting Booth

View Station Operator

Scannex Cubicle

Entry Door

Scan Operator 16

Access to Ground

Exploration

Conceptual Studies

Projects

Mining

Processing

DTC Sort & Sales

Sorting Machine Technologies Ø Development aims:

Ø Efficiency gains and responses to changing requirements in sorting Ø Support for the Producer and Client Value Proposition Ø Proprietary advantage for DTC

Ø Presentation sorting in producer countries: Ø Will increase the need for standardisation in model, colour and quality Ø Machines will underpin standards across all producers Ø Essential for aggregation

IBIS – Colour sorting

SADE V – Automatic Weighing 17

Access to Ground

Exploration

Conceptual Studies

Projects

Mining

Processing

DTC Sort & Sales

Consumer Confidence Technical Research (CCTR)

Ø To maintain consumer confidence in natural, untreated diamonds Ø identification of synthetics and treated diamonds Ø Development discrimination techniques and instruments Ø DiamondSure, DiamondView etc. Ø Laboratory/Trade engagement and communication Ø Trade presentations/educational materials

All synthetics+ ~2% natural diamonds

All polished goods

DiamondView All synthetics identified

DiamondSure

~98% Pass

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Access to Ground

Exploration

Conceptual Studies

Projects

Mining

Hallmarking

Processing

DTC Sort & Sales

To support integrity of natural diamonds via Forevermark - Increased consumer confidence Ø Proprietary advantage for DTC goods Ø Development of low cost, high volume proprietary hallmarking techniques Ø Forevermark marking facilities in Antwerp and Maidenhead Ø c.100,000 stones marked to date

The marking process

Forevermarked stone 19

Talent Development: from a Discipline to a Value Chain Approach

People Strategy and Talent Development Process Creating challenging assignments to develop the competence of technical talent across the value chain Process Peer Groups taking ownership of talent development across the diamond mining process

Access to Ground

Exploration

Conceptual Studies

Projects

Mining

Processing

Integration and coordination by IGT Committee

DTC Sort & Sales

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