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corporate emts David Scutt / Corporate EMTS Director


Each video tells a story of a blast


Case study


EMTS 3 Clear Objectives

TECHNICAL KNOWLEDGE EXPERTS

CUSTOMER SUPPORT

COMMERCIAL AREA SUPPORT


knowledge trAining 1. Theory

2. Application

3. Advanced Topics


Oxygen balance


Oxygen balance Why do we care?


AIRBLAST Sources of Airblast

Environmental Conditions

• Too little burden

that can manipulate Airblast

• Too little stemming

• Wind

• Detonating Cord

• Temperature Inversions


Key Strategic Questions Global EMTS Software Strategy

who what how


Value added submissions for bids TECHNOLOGY FEATURE APPLICATION VALUE ASSUMPTION Feature

Application Increase rock fragmentation & crusher throughput

Blast Design and Optimised Timing

CASE STUDY CASE STUDY VALUE

Value

Assumption

US$250,000 per day, per site.

P80 sizing reduces by >20%. Total crusher throughput increases 5kT per day

Increased dig rates

US$240,000 per day, per dig unit

Pattern Expansion

AU$25M p.a. all sites

IDR increase AVG onsite ~200T/hr @ US$50/t. 10% pattern expansion. All in blasting cost per tonne = $0.30 Blasted tonnes all sites = 850M

Case Study

Case Study Value

West Angelas "Everest" project (2016)

$48M (5 mths)

Brockman 4 crusher rock breaking project (2018) West Angelas "Everest" project (2016) Yanicoogina pattern expansion project by up to 20% (2015)

$1.23M (single blast) $48M (5 mths) $2.8M (p.a.)


Value added analysis selling tools Dynamic waterfall breakdown of losses weightage by cathegory – EVS UG 1

1 Geometric settings Stope Length Heigth Vein Average width Inclination of vein

40 20

[m] [m]

4 77

[m] [° deg]

4.- Financial settings Fixed costs & Market price Mucking 10 Haulage 7 Plant processing 45 Market price 1300

[USD/ton] [USD/ton] [USD/ton] [USD/Ozt Au]

Dynamic anual simulation

EVS UG - MODULE 2 - VALUE CALCULATION FOR TUNNEL OVERBREAK AND ELECTRICAL COST ASSOCIATED WITH WALL FINISHING QUALITIES

2.- Rock mass properties Uniaxial compressive strength [Mpa] P Wave velocity [m/s] Young's stress/strain ratio [Gpa]

80 2400 28

[Mpa] [m/s] [Gpa]

3.- Metalurgic settings Mineral density Ore swelling factor Ore grade Plant recovery

2.73 40% 4 77%

[grs/cc] [%] [gr Au/ton] [%]

5.- Scenario settings KPI's dynamic assess Best case Worst case Overbreak estimated [%] 1% 20% Drill & Blast poor design implementation[%] 8% 25%

1.- Geometric settings Tunnel width Tunel heigth Tunel shape 3.- Overbreaking settings Left wall Right wall Roof

4 4 Medio Punto 0.2 0.2 0.2

Economic value (USD)

EVS UG - MODULE 1 - VALUE CALCULATION FOR POOR DRILL & BLAST IMPLEMENTATION AND DILUTION

[m] [m]

[m] $3.000.000 [m] [m]

4.- Fluid properties & Ventilation settings Air density 0.955 Air viscocity 2.04E-06 Caudal required 300 Atmospheric pressure 80.4 Electrical energy cost 0.4 Type of wall finishing Average Cross section available Moderately Obstructed

[Kg/m3 ] [Pa*s] [m3/s] [Kpa] [USD/K wHr]

$2.000.000

$1.000.000

2.- Fixed Costs & Layout settings Length of tunnel 50 Excavating cost 6 Bolt cost wIinstallation 40 Mesh cost w/installation 20 Shotcrette proyection cost 26 Shotcrette thickness 0.3 Haulage cost 15 Haulage distance 3

[m] USD/ton USD/un USD/un USD/m3 [m] [USD/(ton*km)] [km]

5.- Ground support pattern information Bolt spacing pattern in row 1 Bolt spacing between rows 1

[m] [m]

25% 21% 31%

6.- Model Output Average of overbreaking 21% Ranking of overbreak control Very bad

22%

Potential Economic benefit

Total lost gold value Poor Drill&Blast implementation

Total cost overbreak

Lost gold value due to dilution

Net value achieved


corporate emts David Scutt / Corporate EMTS Director

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