7/27/2019 Blending module.pdf

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7/27/2019 Blending module.pdf

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The Blending module is totally integratedinto the Four-X scheduling system andmultiple pushbacks can be scheduled usingone of Four-Xs three standard schedulingmethods. If the Milawa Algorithm is used atthe same time of scheduling the pushbacks,then the blending and stockpile usage is also

optimised. The user has control overminimum and maximum leads and benchseparations for each push back and like manyother variables in Four-X, these can bechanged over time.

How it works

Whittle have integrated the industry standardLindo

TMLinear Programming (LP) engine into

Four-X, where it is used to optimize the blendand the stockpile utilisation. Four-X reduces the

problem to an LP formulation and passes it to theLindo optimization engine. Lindo then calculatesthe solution and feeds the results back to Four-X,which completes the calculations and formats theresults for the user. When used in conjunctionwith the Milawa Algorithm, blend optimizationsoccur within each Milawa iterative loop, so blendconsiderations influence the scheduleoptimization. Combining both the algorithms ofMilawa and Lindo leads to an unprecedentedability to handle tremendous complexity. Theresult is a schedule that meets all your technicalrequirements, and maximises project NPV.

STRATEGICMINEPLANNINGSOFTWARE

Whittle

LINDO is a trade name of Lindo Systems Inc. 2001 Whittle Programming Pty Ltd

There are many technical papers and case studies on the use of Whittle software. Request literature from:

Whittle Programming Pty Ltd, Level 4, 1013 Whitehorse Road, Box Hill, Vic 3128, AustraliaTelephone +613 9899 3799 Facsimile +613 9899 3755 email: info@whittle.com.au web: www.whittle.com.au

Foundation

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Mining

Width

Milawa

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Express

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Advance

dAna

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Project management

Data importation

Model manipulation

Pit slope modelling

Pit optimization

Economic /

operationalmodelling

Analysis and graphs

Data export

3D interactive model

visualisation

Modular and ScalableThe Blending Module just one of a growing range

of advanced modules which can be added to the

Foundation architecture of Four-X Analyser. This

scalable approach allows the Four-X AnalyserTM

strategic mine planning suite to adapt and evolve

with individual users requirements. A whole new

range of mine planning analysis possibilities is now

available to mine planning professionals.

Pit

S 1S 2

S 3

Blend 1

Blend 2

Feed from stock ile(s)

Blend from

in-situ

Re ect

Above stockpile

minimum grade

Bulk Blend Schematic

Product

Element and blend characteristics