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Safe Introduction of Electronic Detonators. Your host... John Watson The Ensign-Bickford Company. Electronic Detonators . Planning for their Safe Use. Introduction I.M.E. Activities Electronic Detonator/System Concepts Challenges and Opportunities.

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Presentation Transcript
slide1

Safe Introduction of Electronic Detonators

Your host...

John Watson

The Ensign-Bickford Company

slide2

Electronic Detonators...

Planning for their Safe Use

  • Introduction
  • I.M.E. Activities
  • Electronic Detonator/System Concepts
  • Challenges and Opportunities
slide4

I.M.E. & Electronic Detonators

  • Safety Library Publications
  • Electronic Detonator Committee
  • Activity to Date
    • Survey of Manufacturers
    • New Additions to SLP 4
    • Forums
slide5

Fundamental Construction Differences

Shock Tube

Electric

Shock Tube Electric

Delay

Module

Igniter

Capacitor

(Stored Energy)

Delay

Elements

Igniter

Base

Charge

Base

Charge

Pyrotechnic Delay

Electronic Delay

slide7

Typically Two Wire

  • Electric Tie -in Principles
  • Coded Security
  • Multiple Delay Periods
  • Blast Machine
  • Sequential Capability

Factory Programmed

(Fixed) Delay Periods

slide8

Two Wire or Multi-Wired

  • Digital / Coded Security
  • One Millisecond Interval Delays
  • Several Seconds (Maximum)
  • Blast Machine Programming
  • Hand-Held Programmers
  • Blast Design Software Options

Field Programmed

(Variable) Delay Periods

slide9

Fixed In - Hole Delay

Interval Control

  • Five Wire Ribbon Wire
  • Blast Machine & Controllers
  • Series Tie In
  • Plug In Connectors
  • 32 Second In Hole Delay
  • Pre Programmed Surface Controllers
slide10

Field Programmed

Passive Programmed

  • Two Wire
  • Blast Machine, Computer,Scanners
  • Network Tie In
  • Plug In Connectors
  • Bar Code Reader Sequenced/Programmed
slide11

Shock Tube Leads

  • Energy Transition
  • Electronic Delay
  • Standard Tie In

Shock Tube Initiated

Factory Programmed

17ms

17ms

17ms

slide12

Challenges / Opportunities

  • Added Complexity
  • Training Requirements
  • Environmental Limits
    • Temp/Pressure/Shock
  • Multiple User Interfaces
  • Dumb Intelligence
  • System Costs
  • Communication
  • Equipment
  • Added Blast Control
  • Education of Blasters
  • Understand Dynamics
    • Better Blast Control
  • Improved Flexibility
  • Information
  • Improved Economics
  • Communication
  • Information/Control
slide13

Mining / Blasting Opportunity

  • Frequency Control / PPV Control
  • Large Open Pit Patterns -Casting/Long Delays
  • Air Decking
  • Multiple Decking - Minimal Delay Intervals
  • Drifting - Standard Delays / Dual Delay Units
  • Large Stope Blasting
  • Smooth Wall Blasting
  • Fragmentation Optimization
  • Delay Period Re-Evaluation
slide14

Safety Library Publication 4

SLP 4

WARNINGS and INSTRUCTIONS

“ALWAYS and NEVERS”

slide20

Electronic Detonators...

Plan for their Safe Use !

Summary / Comments / Q&A

slide21

Thanks to:

I.M.E. Electronic Detonator Sub-Committee

Mike Barber - Orica USA

Ron Stewart - Orica Canada

E.K. Skip Hurley - Dyno Nobel

John Capers - Austin Powder Company

Bob McClure - Daveyfire Inc.

Rajeev Singhal - Senex Explosives, Inc.

Mick Lownds - Viking Explosives

Carl Lubbe - St. Lawrence Explosives

Dave Leidel - Halliburton Inc.

Lon Santis - I.M.E.

John Watson - The Ensign-Bickford Company

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