Technology Showcase - Liesel
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Transcript of Technology Showcase - Liesel
Technology Showcase30 September 2014
WealthUnearthed
Trends in the industry
Increased need for simplicity and safety in the use and manufacturing of explosives
Deliver minerals in an optimal condition for further treatment
Legislative environment becoming increasingly demanding
Supply chain constraints on shipping and moving products
Need for more environmentally friendly products and processes
Rapid advances in new technologies (Information technology, Nano technology, 3D printing, organic electronics etc.)
Black Oil in Emulsion
Used Oil Life Cycle
Environmental benefit and reduction of carbon footprint
There are 3 methods of disposing of waste oil:
Incineration
Purification to original quality
Blasting
Re-use of oils to create explosive energy
Electronic Detonators
New CE4 tagger
Electronic detonator tagging device with enhanced functionality:
Improved user interface
Expanded capabilities
More robust
Connectivity upgrade
Controlling energy in Underground & Massive
Our Centralised Blasting Systems have a proven track record.
High number of panels blasted each month
Lost blast rate of the lowest in the industry
Purpose made electronic initiators ensure safety and reliability –Cannot be initiated by stray currents
Fit for purpose energy - Quarries
DigiShotTM 300
Simplified system for small blasts
All the benefits of electronics in simple package
Cost effective solution for users that have smaller blast designs
Large Surface Operations – Fragmentation by design
DigiShotTM Plus
Suitable for large scale blasting operations with RF functionality
Buffalo Booster
Two channels two dets
Can accommodate both shock tube and electrics/electronics
Easier lace-up
Blast force of booster is up into emulsion column
High density, less likely to “float”
Formulation will dissolve if booster ends up in waste with the shell
fractured
On bench advantages
Safer and more flexible manufacturing options
Raw Materials Logistics ManufacturingCustomer Benefits
Individual
ingredients are
all non explosive
No explosive
magazine
storage required
No explosives
permits
required.
Lower temperature
processing ~ 65C
Reduced hazardous
operations during
production.
Becomes detonable
after mix of raw
materials - setting
reaction created.
Modular plants
possible
Boosters on demand
On site manufacturing
Cold Emulsion
The vertical drop of emulsion was first implemented in South Africa (World) in 2008
Cold emulsion
Oxidiser will not crystallize at ambient temperature, resulting in a more stable emulsion
Cold emulsion system expands on the vertical drop system as depth is not limited
The cold emulsion system
delivers raw materials to an
underground storage,
manufacturing and delivery
site for ‘on tap’ availability of
bulk emulsion and is not
limited by depth
All raw materials transported
in pipes in the shaft and on
the levels
Surface Blasting Handbook
Blast Intelligence – Paperless on the bench
Paper – Typical Examples
Drill Logs
Mine Blast Plans
AEL Blast Logs
AEL Blast Report (QC)
Cup samples
Blast Intelligence - Blast-i tablet
Example (A N Other Mine):
429 17.9 440 4.1 165
430 18.2 422 4.0 165
431 17.9 440 4.0 165
432 18.0 420 3.8 165
433 18.4 426 4.7 165
434 17.9 428 5.8 165
435 18.0 684 4.5 165
436 18.3 444 4.3 165
437 18.4 403 4.0 165
438 17.9 490 5.6 165
439 18.0 414 4.3 165
BlastID 311-157
L
Hole
Number
Actual
Hole
Depth
Actual
Mass
Charged
Actual
Stemmin
g
Pump
Pressure
Product
Pump
Rate
Gassing
Flow
Rate
Emulsion
Temperatur
e
Initial
Cup
Weight
Initial
Time
Final
Cup
Weight
Final
Time
Final
Cup
density
Hole
diameter
Technology showcase
Please join us at the Technology Showcase outside – and give your comments
AEL Contracted Research and Development partners:
Thank You
The raw materials are explosive - require licensed magazines for storage
High cost of melting of TNT and the cooling of the cast pentolite
TNT has several drawbacks; the most prominent is its toxicity
During solidification/cooling, TNT undergoes ≈ 11% shrinkage leading to
cracking and the formation of voids - requires top-up, multiple pourings
Booster casting process is done manually - slow and labour intensive
AEL solution – centralized manufacturing
China is the main supplier of TNT and the shipping of TNT may be curtailed
in the future presenting problems with respect to its reliable and on-time
supply
LIMITATIONS OF THE CURRENT PROCESS AND PRODUCT
Various formulations tested to
increase stability and
prolong time before solidifying and
becoming detonable.
New shell and cap protected
Buffalo Booster Trade mark
Impact, friction, static discharge and drop tests performed at Rheinmetall -
results similar to pentolite
Tested according to EN13631 and MIL standards
High VOD and detonation pressure – similar to Pentolite
BUFFALO BOOSTER – DEVELOPMENT AND TESTING
Impact testing VOD testing
Difference between used oil and refined oil
Distance travelled Toluene (kg/t)
0 6
235 8
4080 318
8138 362Used oil
Refined oil
Virgin oil
Optimised utilisation of oil
Mines use virgin oil at premium cost in mining vehicles
Mines accumulate used oil in on-site storage
Mine get oil collectors to remove waste oil
Oil collectors acquire oil at a reduced rate, refine and re-sell to make profit
Explosive manufacturer acquire refined oil at fraction of virgin oil to use in fuel phase of explosives and stabilise the cost of explosives
Not creating, but re-using waste
The amount of used oil used within the explosives formulation directly offsets the amount of virgin oil required from refineries
By re-using oils, the carbon footprint is reduced as the used oils have already been accounted for
An electronic solution for every blasting requirement
We have the electronic blasting solution for you. Come and discuss your requirements for:
Underground & Massive
Quarries
Large Surface Operations
Individual ingredients are all non-explosive – no magazine storage for
ingredients
Lower temperature processing ≈ 65°C
Only becomes detonable after a setting reaction
Hazardous operations involved in the production of these boosters
are reduced
Modular plants possible
Boosters on demand
On site manufacturing
Safer and more flexible manufacturing options
Better burning method
Incineration vs. explosives
With incineration an external heat source is required to incinerate used oils at temperatures of 900°C
With an explosion, the used oil is consumed at temperatures in excess of 1000°C without the use of additional energy
Major benefits of cold emulsion
All raw materials transported in pipes in the shaft and on the levels
Vastly improved logistics
Equipment design optimises pressure head to simplify manufacture
Reduced time and labour resources
Improved safety and security
Reduced risk of theft