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Safe Introduction of Electronic Detonators

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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Safe Introduction of Electronic Detonators

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  1. Safe Introduction of Electronic Detonators Your host... John Watson The Ensign-Bickford Company

  2. Electronic Detonators... Planning for their Safe Use • Introduction • I.M.E. Activities • Electronic Detonator/System Concepts • Challenges and Opportunities

  3. Institute of Makers of Explosives (I.M.E.)

  4. I.M.E. & Electronic Detonators • Safety Library Publications • Electronic Detonator Committee • Activity to Date • Survey of Manufacturers • New Additions to SLP 4 • Forums

  5. 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

  6. Basic Application Concepts

  7. Typically Two Wire • Electric Tie -in Principles • Coded Security • Multiple Delay Periods • Blast Machine • Sequential Capability Factory Programmed (Fixed) Delay Periods

  8. 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

  9. 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

  10. Field Programmed Passive Programmed • Two Wire • Blast Machine, Computer,Scanners • Network Tie In • Plug In Connectors • Bar Code Reader Sequenced/Programmed

  11. Shock Tube Leads • Energy Transition • Electronic Delay • Standard Tie In Shock Tube Initiated Factory Programmed 17ms 17ms 17ms

  12. 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

  13. 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

  14. Safety Library Publication 4 SLP 4 WARNINGS and INSTRUCTIONS “ALWAYS and NEVERS”

  15. Electronic Detonators... Plan for their Safe Use ! Summary / Comments / Q&A

  16. 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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