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