CA2252353A1 - Non-primary detonator - Google Patents

Non-primary detonator Download PDF

Info

Publication number
CA2252353A1
CA2252353A1 CA 2252353 CA2252353A CA2252353A1 CA 2252353 A1 CA2252353 A1 CA 2252353A1 CA 2252353 CA2252353 CA 2252353 CA 2252353 A CA2252353 A CA 2252353A CA 2252353 A1 CA2252353 A1 CA 2252353A1
Authority
CA
Canada
Prior art keywords
mixture
detonators
initiator
pressurizing
smaller particle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2252353
Other languages
French (fr)
Other versions
CA2252353C (en
Inventor
Sek Kwan Chan
John Cooper
David Proven Sutton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Orica Explosives Technology Pty Ltd
Original Assignee
Orica Explosives Technology Pty Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Orica Explosives Technology Pty Ltd filed Critical Orica Explosives Technology Pty Ltd
Priority to CA 2252353 priority Critical patent/CA2252353C/en
Priority to PCT/AU1999/000940 priority patent/WO2000026603A1/en
Priority to CN99814042A priority patent/CN1111719C/en
Priority to AU13661/00A priority patent/AU757884B2/en
Publication of CA2252353A1 publication Critical patent/CA2252353A1/en
Priority to ZA200103538A priority patent/ZA200103538B/en
Application granted granted Critical
Publication of CA2252353C publication Critical patent/CA2252353C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/10—Initiators therefor
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
    • C06C7/00—Non-electric detonators; Blasting caps; Primers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)

Abstract

Deflagration to detonation transition (DDT) detonators are provided which are essentially free from primary explosives. The detonators utilize an intimate mixture of a large particle sized porous, powdered explosive such as PETN, and smaller particle size, high-burn-rate, pressurizing initiator such as a mixture of potassium picrate and potassium perchlorate. The smaller particle sized pressurizing initiator is located within the interstitial spaces of the larger powdered explosive. This mixture is able to reliably initiate an adjacent transition portion, or base charge while reducing the need for heavy confinement. The mixture can also be used directly in surface detonator applications. Improved performance and safety during manufacture of detonators is achieved.
CA 2252353 1998-11-04 1998-11-04 Non-primary detonator Expired - Lifetime CA2252353C (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CA 2252353 CA2252353C (en) 1998-11-04 1998-11-04 Non-primary detonator
PCT/AU1999/000940 WO2000026603A1 (en) 1998-11-04 1999-10-29 Non-primary detonators
CN99814042A CN1111719C (en) 1998-11-04 1999-10-29 Non-primary explosive detonators
AU13661/00A AU757884B2 (en) 1998-11-04 1999-10-29 Non-primary detonators
ZA200103538A ZA200103538B (en) 1998-11-04 2001-05-02 Non-primary detonators.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2252353 CA2252353C (en) 1998-11-04 1998-11-04 Non-primary detonator

Publications (2)

Publication Number Publication Date
CA2252353A1 true CA2252353A1 (en) 2000-05-04
CA2252353C CA2252353C (en) 2007-06-19

Family

ID=27671951

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2252353 Expired - Lifetime CA2252353C (en) 1998-11-04 1998-11-04 Non-primary detonator

Country Status (2)

Country Link
CA (1) CA2252353C (en)
ZA (1) ZA200103538B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111410209A (en) * 2019-10-24 2020-07-14 中北大学 Method for preparing nano ammonium perchlorate and nano ammonium nitrate
CN114105720A (en) * 2021-12-01 2022-03-01 南京理工大学 Non-priming-agent flame detonator containing insensitive ignition powder and Taian explosive
US11761743B2 (en) 2020-05-20 2023-09-19 DynaEnergetics Europe GmbH Low voltage primary free detonator

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024042390A1 (en) * 2023-07-18 2024-02-29 Ayoman Esmaeil Safe initiation of shock tubes (nonel) connected to mineral detonators based on nanotechnology

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111410209A (en) * 2019-10-24 2020-07-14 中北大学 Method for preparing nano ammonium perchlorate and nano ammonium nitrate
US11761743B2 (en) 2020-05-20 2023-09-19 DynaEnergetics Europe GmbH Low voltage primary free detonator
CN114105720A (en) * 2021-12-01 2022-03-01 南京理工大学 Non-priming-agent flame detonator containing insensitive ignition powder and Taian explosive

Also Published As

Publication number Publication date
CA2252353C (en) 2007-06-19
ZA200103538B (en) 2002-08-02

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MKEX Expiry

Effective date: 20181105