Mining and fragmentation proposal for a more efficient mine management
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Mining and Fragmentation: proposal for a more efficient mine management. Iván Carrasco – First Quantum Minerals Benjamín Cebrián - Blast Consult S.L. www.blast-consult.com. IVAN CARRASCO. Index. Industry challenges Current management chart: pros and cons

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Mining and Fragmentation: proposal for a more efficient mine management

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Mining and Fragmentation: proposal for a more efficient mine management

Iván Carrasco – First Quantum Minerals

Benjamín Cebrián - Blast Consult S.L.

www.blast-consult.com


IVAN CARRASCO


Index

  • Industry challenges

  • Current management chart: pros and cons

  • Fragmentation costs & The value chain

  • Proposed management chart


Industrychallenges

PROJECT SUCCESS


Industrytrends


CurrentArrangement


Current Arrangement

Industrial Psychology of Mine and Mill Managers

  • Same company… but different goals.

  • Different approaches… but same ore!

A Game of Thrones…


CurrentArrangement

Mine Department

  • Mining Engineer

  • Drilling and Blasting

  • Loading and Hauling

  • Ancillary Services

  • Mine Maintenance

  • Mine Planning


CurrentArrangement

Mill Department

  • Metallurgical, Chemical or Industrial Engineer

  • Crushing

  • Grinding

  • Ancillary Services

  • Mill Maintenance

  • Flotation – LX - SX/EW.

  • Tailings management.


Mine vs Mill Manager


Mine Manager

  • “I have accomplished my tonnage goals”

  • “I have to look after MY costs and MY budget”

  • “Since I cannot cut on fuel costs, I will cut on explosives costs”


Mill Manager

  • “The grade you sent is lower than declared”

  • “You are sending boulders that plug my crusher”

  • “My steel and kwt/h costs are high and throughput is low ”


CEO

“You supply your planned tonnes & grade”

“You give me the monthly metal production”

“And do not forget: keep your costs low, guys…!”


Riotinto mine (5.000 years)


A story of two cities…


Fragmentation & Thevaluechain

Energy as a project key driver.


Fragmentation & The value chain

Energy consumption.


Fragmentation & The value chain

Energy costs.


Case study

CoarseFragmentationonhard rock mine


Case study

D80 vs PrimaryCrusherThroughput at Aguablanca Nickel Mine (Aden Muñoz et al)


Opportunities

A well managed fragmentation process has significant overall cost-saving potential:

  • Increasing resource recovery.

  • Reducing dilution (increase the grade delivered to the mill).

  • Reducing power consumption at the mill.

  • Increasing mill throughput.

  • Reducing metal losses (fines).

  • Increasing OEE at the crushing plant.

    This new approach should be incorporated to the Corporate’s Culture.


Fragmentation Department

A key area to achieve Corporate goals.

Objectives:

  • To reduce the size of the ore from a bulk in situ mass to fit the bottleneck at the mill.

  • To manage efficiently the overall fragmentation of ore:

    • As a single process

    • Under the same budget

    • Under the same management from the Mine to the Process Plant (flotation, LX or others).

  • To increase the valuable metal recovery


END


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