7/17/2019 Application of Blast Based M2L Model in Barrick Zaldivar

http://slidepdf.com/reader/full/application-of-blast-based-m2l-model-in-barrick-zaldivar 1/17

Application of Blast Based M2L model

in Barrick ZaldivarCarlos Muñoz, Jair Alarcón, Felipe Contreras, Daniel Toro BBS & Technology Management, Orica Mining Services-LatinAmerica 

Richard Palape, Javier Estay 

Mine Superintendence, Barrick Zaldivar  

7/17/2019 Application of Blast Based M2L Model in Barrick Zaldivar

http://slidepdf.com/reader/full/application-of-blast-based-m2l-model-in-barrick-zaldivar 2/17

The focus of operations units?

7/17/2019 Application of Blast Based M2L Model in Barrick Zaldivar

http://slidepdf.com/reader/full/application-of-blast-based-m2l-model-in-barrick-zaldivar 3/17

Mine to Leach Focus

7/17/2019 Application of Blast Based M2L Model in Barrick Zaldivar

http://slidepdf.com/reader/full/application-of-blast-based-m2l-model-in-barrick-zaldivar 4/17

M2L history in Zaldivar

Baseline M2L

CMZ & OMS (>6”) 

2007 2008 2009 2010 2011 2012

M2L

(>6”4”) 

M2L(4”3”)

M2L Project

KPI SERVICES

   P  r  o   j  e  c   t  s   D  e  v

  e   l  o  p  m  e  n   t

M2L-1ra etapa

M2L-2da etapa

7/17/2019 Application of Blast Based M2L Model in Barrick Zaldivar

http://slidepdf.com/reader/full/application-of-blast-based-m2l-model-in-barrick-zaldivar 5/17

M2L first stage (6” 4”) Objectives

Value creation in mine to plant proccesses from drill and blast improvement.

The focus; 

  1° Crusher

  Shovel performance

  Dumpleach recovery

  Wall Control

7/17/2019 Application of Blast Based M2L Model in Barrick Zaldivar

http://slidepdf.com/reader/full/application-of-blast-based-m2l-model-in-barrick-zaldivar 6/17

200

300

400

5 0 0 500

6   0   0   

600

7     0     0     

8     0     0     

800

9     0     0     

900

1      0      0      0      

1000

1      1      0      0      

1100

1     2     0     0     

1200

1      3     0     0     

1300

1     4     0     0     

1400

1      5      0     0     

1500

1      6      0     0     

1600

1     7     0     0     

1700

1     8     0     0     

1800

1     9     0     0     

1900

2      0      0      0      

2000

2      1      0      0      

2100

2     2     0     0     

2200

2    3    0    0    

2  3  0  0  

2    4    0    0    

2    5     0    0    

M2L blast designs

SD = 1.17

SD = 1.17

VOD

Vp

Vp

VOD

SD = 1.17

SD = 1.17

VOD

Vp

Vp

VOD

Distribución de Energía &

Modelling

Alimentación Óptima Planta Hidrometalúrgica

0

20

40

60

80

100

120

1 10 100 1000

Tamaño (mm)

   %    P

  a  s  a  n   t  e   A  c  u  m  u   l  a   d  o

Habitual Óptima

7/17/2019 Application of Blast Based M2L Model in Barrick Zaldivar

http://slidepdf.com/reader/full/application-of-blast-based-m2l-model-in-barrick-zaldivar 7/17

Metallurgical test

0

200

400

600

800

1.000

1.200

1.400

1.600

1.800

2.000

  m  e  s   0

  m  e  s   1

  m  e  s   2

  m  e  s   3

  m  e  s   4

  m  e  s   5

  m  e  s   6

  m  e  s   7

  m  e  s   8

  m  e  s   9

  m  e  s   1   0

  m  e  s   1   1

  m  e  s   1   2

  m  e  s   1   3

  m  e  s   1   4

  m  e  s   1   5

  m  e  s   1   6

  m  e  s   1   7

  m  e  s   1   8

  m  e  s   1   9

  m  e  s   2   0

  m  e  s   2   1

  m  e  s   2   2

  m  e  s   2   3

  m  e  s   2   4

  m  e  s   2   5

  m  e  s   2   6

  m  e  s   2   7

  m  e  s   2   8

  m  e  s   2   9

  m  e  s   3   0

  m  e  s   3   1

  m  e  s   3   2

  m  e  s   3   3

  m  e  s   3   4

  m  e  s   3   5

  m  e  s   3   6

   C  o

   b  r  e

   f   i  n  o  p  a  r  c

   i  a   l   (   t   )

0

5

10

15

20

25

30

35

40

45

50

   %    E

  x   t  r  a  c  c

   i   ó  n

   C  u

   T  a  c  u  m .

Cu fino parcial producido de ROM cargado al inicio año 1 (actual P80 6")

Cu fino parcial producido de ROM cargado al inicio año 1 (Proyecto P80 4")

Extracción de cobre acumulada (Kelsall) actual (P80 6'')Extracción de cobre acumulada (Kelsall) Proyecto (P80 4'')

7/17/2019 Application of Blast Based M2L Model in Barrick Zaldivar

http://slidepdf.com/reader/full/application-of-blast-based-m2l-model-in-barrick-zaldivar 8/17

Benefits first stage

Total Benefits > 18 MUSD/y

7/17/2019 Application of Blast Based M2L Model in Barrick Zaldivar

http://slidepdf.com/reader/full/application-of-blast-based-m2l-model-in-barrick-zaldivar 9/17

Objectives

 P80 ≤ 3” 

 Shovel performance 3,750-3,850 (ton/h)

(current 3,650 ton/h)

 1° Crusher performance 3200 TPHef(current 3,000 ton/h)

 Increase Dumpleach recovery

M2L second stage (4” 3”) 

7/17/2019 Application of Blast Based M2L Model in Barrick Zaldivar

http://slidepdf.com/reader/full/application-of-blast-based-m2l-model-in-barrick-zaldivar 10/17

M2L blast design methodology

Short term

Geology

Design &

modelling

Drill data

Geotechnics data

apply to D&B

Long term

Geology

D&B design

methods

A LT L Plaz o B 30 95 M4 2 D ur ez a C . U niax ia l( Mp a)

CLO 3% Blanda 0-25

BT 30% Semi dura 25-75

SIL 67% Blanda 0-25

BLOQUES CPlazo B3095 M42

Alta Ley (A) 43%Dump Le ach (DL) 57%

7/17/2019 Application of Blast Based M2L Model in Barrick Zaldivar

http://slidepdf.com/reader/full/application-of-blast-based-m2l-model-in-barrick-zaldivar 11/17

Shovel

performance

1° crusher

performanceDumpleach

Vibration &

KPI-Stability

Fragmentation

Results &Benefits

M2L results & benefits control

7/17/2019 Application of Blast Based M2L Model in Barrick Zaldivar

http://slidepdf.com/reader/full/application-of-blast-based-m2l-model-in-barrick-zaldivar 12/17

Demoblast – Study Area

7/17/2019 Application of Blast Based M2L Model in Barrick Zaldivar

http://slidepdf.com/reader/full/application-of-blast-based-m2l-model-in-barrick-zaldivar 13/17

7/17/2019 Application of Blast Based M2L Model in Barrick Zaldivar

http://slidepdf.com/reader/full/application-of-blast-based-m2l-model-in-barrick-zaldivar 14/17

Demoblast results

7/17/2019 Application of Blast Based M2L Model in Barrick Zaldivar

http://slidepdf.com/reader/full/application-of-blast-based-m2l-model-in-barrick-zaldivar 15/17

Dump Leach (Kelsall)

Demoblast results

7/17/2019 Application of Blast Based M2L Model in Barrick Zaldivar

http://slidepdf.com/reader/full/application-of-blast-based-m2l-model-in-barrick-zaldivar 16/17

Projected benefits

7/17/2019 Application of Blast Based M2L Model in Barrick Zaldivar

http://slidepdf.com/reader/full/application-of-blast-based-m2l-model-in-barrick-zaldivar 17/17

M2L Advanced services at Zaldivar