WO2000020821A1 - Initiateur de tube de choc - Google Patents

Initiateur de tube de choc Download PDF

Info

Publication number
WO2000020821A1
WO2000020821A1 PCT/IB1999/001628 IB9901628W WO0020821A1 WO 2000020821 A1 WO2000020821 A1 WO 2000020821A1 IB 9901628 W IB9901628 W IB 9901628W WO 0020821 A1 WO0020821 A1 WO 0020821A1
Authority
WO
WIPO (PCT)
Prior art keywords
shock tube
initiator
initiating
charge
shock
Prior art date
Application number
PCT/IB1999/001628
Other languages
English (en)
Inventor
Bernard Maxwell Sherman
Ruben Bark
Original Assignee
African Explosives Limited
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 African Explosives Limited filed Critical African Explosives Limited
Priority to AU58791/99A priority Critical patent/AU5879199A/en
Publication of WO2000020821A1 publication Critical patent/WO2000020821A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/04—Arrangements for ignition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/04—Arrangements for ignition
    • F42D1/043—Connectors for detonating cords and ignition tubes, e.g. Nonel tubes

Definitions

  • This invention relates to the initiation of shock tubes in blasting operations.
  • the invention provides a shock tube initiator which includes
  • a detonation component defining a detonation chamber and an initiating
  • shock tube locating formation adjacent the detonation component for locating
  • shock tube transversely and intersectingly with an open end of the
  • a firing means for firing the primer charge for firing the primer charge.
  • the shock tube initiator may further include a secondary charge in the
  • the secondary charge may be a body
  • the fuse wire will then comprise a part of the firing means and the detonating composition will be the primer charge.
  • the shock tube initiator may include a small arms blank cartridge
  • shock tube initiator may include a firing pin and a carrier therefor
  • the urging means may be mechanically or explosively operable.
  • a spring or a propellant charge may be utilised.
  • the shock tube initiator may also be mechanically operable. If the urging means is mechanically operable, the shock tube initiator may also be mechanically operable.
  • a restraining means for holding the hammer in a spaced position away from
  • the shock tube initiator may further include an opening forming means for
  • the opening forming means may be manually operable, by a person setting up the
  • the secondary charge may operate the
  • the opening forming means may comprise a notch cutter that is displaceable relative to the locating formation to cut, in use, an opening in the shock tube.
  • notch cutter may be displaceable in a guide passage in a relatively water tight manner to impede ingress of moisture into the shock tube. Further, in order to impede ingress
  • the locating formation and the notch cutter may be
  • the opening forming means may be a hollow plunger having a cutting tip and being axially displaceable within the initiating passage by means of the
  • the shock tube initiator may further include a safety arrangement for impeding accidental operation thereof. Conveniently, this may be implemented by a removable
  • the notch cutter may have a snoulder or catch to prevent
  • the invention extends to an initiator as described above in combination with a
  • the invention extends also to a method of initiating shock tube which includes
  • the secondary charge may be part of a small arms
  • the method includes discharging the cartridge by striking a
  • the firing pin may be struck by a hammer that has been mechanically displaced 85 or by a hammer that has been displaced by mechanically or by a propellant charge.
  • the method further includes locating a portion of the shock in a locating
  • the opening may then be
  • Figure 1 shows schematically a three dimensional view of a set up of explosive
  • Figure 2 shows an axial section of a first embodiment of an initiator in
  • Figure 3 shows schematically an axial section of a second embodiment of an
  • Figure 4 shows schematically an axial section of a third embodiment of an
  • reference numeral 10 indicates generally a blasting area having a work face 1 2 into which an array of drill holes 14 have been
  • the holes 14 have been charged for blasting, and have been interconnected
  • shock tube 1 6 which is operatively connected to an electrically operable shock tube initiator 1 8.
  • the initiator 1 8 is connected via low resistance electrical
  • barrier 24 is set up away from the workface 1 2.
  • the initiator 1 8 includes two halves
  • a seat 44 which accommodates a shock tube locator 46 having a shock tube grip 48 pivotally mounted thereon about the axis 50.
  • shock tube locating passage 52 shown end on in Figure 2.
  • a notch cutter 54 which is axially displaceable along the axis 36, from its position 54.1 shown dotted in Figure 2, to the
  • the notch cutter 54 can be displaced from its position 54.1 to its operative position (full lines) . In doing so the cutting edge 54.2 will cut a notch
  • the notch cutter 54 has a transverse opening 54.3 which is in alignment with the notch opening cut into the shock tube, when it is in passage 52.
  • a collar 56 has a grubscrew engaging with a
  • the locator 46 furthermore has a passage 46.2, which together with a passage 58.1
  • a primer charge holder 58 in a primer charge holder 58, defines a detonation chamber for a blank cartridge 59
  • the holder 58 is co-axially located with a firing pin guide 62 in a bore in the
  • a firing pin 64 is axially displaceable within a bore in the firing pin guide
  • a helical compressor spring 74 urges the hammer 70 axially towards the firing
  • wire 76 is electrically connected to terminals 78 and 80 which are electrically
  • a safety pin 86 is inserted into the passage 42.2, to retain the hammer 70 in
  • the holes will be charged with explosives, and will be connected to the shock tube
  • the grip 48 is pivoted to retain the shock tube in position.
  • cutting edge 54.2 cuts through the side of the shock tube held in the passage 52 thereby providing a transverse notch opening into the shock tube. In that position,
  • cutter 54 is in register with the passage 58.1 aligned with the percussion cap 60.
  • co-axial connector has low resistance conductors leading to the exploder 22.
  • the fusible wire 76 is chosen to melt under a fairly heavy current flow to ensure
  • exploder 22 will apply a voltage of
  • barrier 24 will have been placed in position to avoid undue scattering of broken rock.
  • a second embodiment of an initiator in accordance with the invention is designated by reference numeral 90.
  • an opening is formed in a length of shock tube 92 automatically.
  • embodiment 90 has a hollow plunger 94 which has a passageway 96 and a cutting tip 98.
  • the plunger 94 is displaceable within a passage 1 00 from an initial position
  • the passageway 96 communicates with the interior of the shock tube 92 via the
  • the cartridge 59 is detonated by a firing pin 64 which is displaced by a
  • the secondary propellant charge 104 is initiated by a fuse
  • this embodiment 90 has a connector 1 1 2 by means of which the fuse
  • shock tube 92 via the passageway 96 and initiates the shock tube 96.
  • a third embodiment of an initiator 1 1 4 in accordance with the invention is a third embodiment of an initiator 1 1 4 in accordance with the invention.
  • the embodiment has a secondary propellant charge 104 and a match head 1 1 6 with a primer charge 1 1 8.
  • the secondary charge 104 is such as to drive the plunger 94 through and past the shock tube 92 to align the passageway 96 with the interior of the shock tube 92 and permit the explosive front to enter the shock tube 92 and

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Abstract

L'invention concerne un initiateur (18) de tube de choc comprenant un composant détonateur qui définit une chambre de détonation, un passage (58.1) d'amorce donnant à l'extérieur de ladite chambre, et un localisateur (46) de tube de choc jouxtant le composant détonateur pour localiser une partie dudit tube de manière transversale et entrecroisée avec une extrémité libre du passage d'amorce. La chambre de détonation renferme une charge (60) d'amorce, ainsi qu'un moyen de mise à feu (64) pour allumer ladite charge (60). L'invention concerne également un système d'abattage et des procédés permettant d'amorcer les tubes de choc. Le dispositif peut comprendre un percuteur (64) actionné par un marteau (70) pour allumer des cartouches (60) à blanc d'armes légères. Le dispositif peut aussi comporter un piston (94) creux pyrotechniquement entraîné, qui coupe dans le tube de choc (92) au moyen de sa tête de coupe (98) creuse.
PCT/IB1999/001628 1998-10-06 1999-10-05 Initiateur de tube de choc WO2000020821A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU58791/99A AU5879199A (en) 1998-10-06 1999-10-05 Shock tube initiator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA989101 1998-10-06
ZA98/9101 1998-10-06

Publications (1)

Publication Number Publication Date
WO2000020821A1 true WO2000020821A1 (fr) 2000-04-13

Family

ID=25587315

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1999/001628 WO2000020821A1 (fr) 1998-10-06 1999-10-05 Initiateur de tube de choc

Country Status (2)

Country Link
AU (1) AU5879199A (fr)
WO (1) WO2000020821A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7665401B2 (en) 2003-12-01 2010-02-23 Mas Zengrange (Nz) Ltd Shock tube initiator
WO2011034442A1 (fr) * 2009-09-16 2011-03-24 Mas Zengrange (Nz) Limited Système de sautage d'amorce-détonateur à distance
US10386168B1 (en) * 2018-06-11 2019-08-20 Dynaenergetics Gmbh & Co. Kg Conductive detonating cord for perforating gun
US11021923B2 (en) 2018-04-27 2021-06-01 DynaEnergetics Europe GmbH Detonation activated wireline release tool
US11225848B2 (en) 2020-03-20 2022-01-18 DynaEnergetics Europe GmbH Tandem seal adapter, adapter assembly with tandem seal adapter, and wellbore tool string with adapter assembly
US11420942B2 (en) 2018-03-28 2022-08-23 Vtv Therapeutics Llc Crystalline forms of [3-(4- {2-butyl-1-[4-(4-chloro-phenoxy)-phenyl]-1H-imidazol-4-yl} -phenoxy)-propyl]-diethyl-amine
US11524942B2 (en) 2018-10-10 2022-12-13 Vtv Therapeutics Llc Metabolites of [3-(4-{2-butyl-1-[4-(4-chloro-phenoxy)-phenyl]-1H-imidazol-4 yl}-phenoxy)-propyl]-diethyl-amine
US11753889B1 (en) 2022-07-13 2023-09-12 DynaEnergetics Europe GmbH Gas driven wireline release tool
US11761281B2 (en) 2019-10-01 2023-09-19 DynaEnergetics Europe GmbH Shaped power charge with integrated initiator
US11808093B2 (en) 2018-07-17 2023-11-07 DynaEnergetics Europe GmbH Oriented perforating system
US11883383B2 (en) 2018-03-28 2024-01-30 Vtv Therapeutics Llc Pharmaceutically acceptable salts of [3-(4- {2-butyl-1-[4-(4-chloro-phenoxy)-phenyl]-1H-imidazol-4-yl} -phenoxy)-propyl]-diethyl-amine
US11946728B2 (en) 2019-12-10 2024-04-02 DynaEnergetics Europe GmbH Initiator head with circuit board

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB705086A (en) * 1951-07-18 1954-03-10 Canadian Ind Improvements in and relating to fuze igniting and connecting devices
FR1088607A (fr) * 1953-08-24 1955-03-09 Soc Tech De Rech Ind Perfectionnement aux fusées pour projectiles
US4037537A (en) * 1974-10-04 1977-07-26 Linden-Alimak Ab Method and a device for blasting
US4381711A (en) * 1980-10-14 1983-05-03 E.I.T. Corporation Hand-held shot tube detonator
FR2519784A1 (fr) * 1982-01-13 1983-07-18 Aerospatiale Dispositif de transmission multivoies d'un ordre pyrotechnique comportant un ensemble relais a relevement de pieces
GB2140137A (en) * 1983-05-20 1984-11-21 Ici Australia Ltd Fusecord connector
EP0208416A1 (fr) * 1985-06-28 1987-01-14 Aeci Limited Raccordement pour cordeau à basse énergie
US4716831A (en) * 1986-11-03 1988-01-05 The Ensign-Bickford Company Detonating cord connector
EP0271233A1 (fr) * 1986-11-17 1988-06-15 Eti Explosives Technologies International Inc. Amorce non electrique sans élément percutant
US4911076A (en) * 1987-11-11 1990-03-27 Aeci Limited Time delay replay
US4962708A (en) * 1988-12-12 1990-10-16 Snyder Richard N Electric/non-electric initiation system
US5144893A (en) * 1991-08-06 1992-09-08 The United States Of America As Represented By The Secretary Of The Army Safe ordnance initiation system
US5365851A (en) * 1992-08-07 1994-11-22 The Ensign-Bickford Company Initiator device
WO1996000879A1 (fr) * 1994-06-28 1996-01-11 The Ensign-Bickford Company Dispositif de couplage pour detonation
US5594196A (en) * 1995-04-20 1997-01-14 Ireco, Inc. Shock tube surface connector
US5714712A (en) * 1996-10-25 1998-02-03 The Ensign-Bickford Company Explosive initiation system

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB705086A (en) * 1951-07-18 1954-03-10 Canadian Ind Improvements in and relating to fuze igniting and connecting devices
FR1088607A (fr) * 1953-08-24 1955-03-09 Soc Tech De Rech Ind Perfectionnement aux fusées pour projectiles
US4037537A (en) * 1974-10-04 1977-07-26 Linden-Alimak Ab Method and a device for blasting
US4381711A (en) * 1980-10-14 1983-05-03 E.I.T. Corporation Hand-held shot tube detonator
FR2519784A1 (fr) * 1982-01-13 1983-07-18 Aerospatiale Dispositif de transmission multivoies d'un ordre pyrotechnique comportant un ensemble relais a relevement de pieces
GB2140137A (en) * 1983-05-20 1984-11-21 Ici Australia Ltd Fusecord connector
EP0208416A1 (fr) * 1985-06-28 1987-01-14 Aeci Limited Raccordement pour cordeau à basse énergie
US4716831A (en) * 1986-11-03 1988-01-05 The Ensign-Bickford Company Detonating cord connector
EP0271233A1 (fr) * 1986-11-17 1988-06-15 Eti Explosives Technologies International Inc. Amorce non electrique sans élément percutant
US4911076A (en) * 1987-11-11 1990-03-27 Aeci Limited Time delay replay
US4962708A (en) * 1988-12-12 1990-10-16 Snyder Richard N Electric/non-electric initiation system
US5144893A (en) * 1991-08-06 1992-09-08 The United States Of America As Represented By The Secretary Of The Army Safe ordnance initiation system
US5365851A (en) * 1992-08-07 1994-11-22 The Ensign-Bickford Company Initiator device
WO1996000879A1 (fr) * 1994-06-28 1996-01-11 The Ensign-Bickford Company Dispositif de couplage pour detonation
US5594196A (en) * 1995-04-20 1997-01-14 Ireco, Inc. Shock tube surface connector
US5714712A (en) * 1996-10-25 1998-02-03 The Ensign-Bickford Company Explosive initiation system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
THOMAS C. JONES: "Underwater Initiator", NAVY TECHNICAL DISCLOSURE BULLETIN, vol. 4, no. 3, March 1979 (1979-03-01), pages 29 - 33, XP002127794 *

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7665401B2 (en) 2003-12-01 2010-02-23 Mas Zengrange (Nz) Ltd Shock tube initiator
WO2011034442A1 (fr) * 2009-09-16 2011-03-24 Mas Zengrange (Nz) Limited Système de sautage d'amorce-détonateur à distance
US8621998B2 (en) 2009-09-16 2014-01-07 Mas Zengrange (Nz) Limited Remote initiator breaching system
AU2009352722B2 (en) * 2009-09-16 2014-11-27 Mas Zengrange (Nz) Limited Remote initiator breaching system
US11420942B2 (en) 2018-03-28 2022-08-23 Vtv Therapeutics Llc Crystalline forms of [3-(4- {2-butyl-1-[4-(4-chloro-phenoxy)-phenyl]-1H-imidazol-4-yl} -phenoxy)-propyl]-diethyl-amine
US11883383B2 (en) 2018-03-28 2024-01-30 Vtv Therapeutics Llc Pharmaceutically acceptable salts of [3-(4- {2-butyl-1-[4-(4-chloro-phenoxy)-phenyl]-1H-imidazol-4-yl} -phenoxy)-propyl]-diethyl-amine
US11021923B2 (en) 2018-04-27 2021-06-01 DynaEnergetics Europe GmbH Detonation activated wireline release tool
US11634956B2 (en) 2018-04-27 2023-04-25 DynaEnergetics Europe GmbH Detonation activated wireline release tool
US10845177B2 (en) 2018-06-11 2020-11-24 DynaEnergetics Europe GmbH Conductive detonating cord for perforating gun
US12044108B2 (en) 2018-06-11 2024-07-23 DynaEnergetics Europe GmbH Perforating gun with conductive detonating cord
US11385036B2 (en) 2018-06-11 2022-07-12 DynaEnergetics Europe GmbH Conductive detonating cord for perforating gun
US10386168B1 (en) * 2018-06-11 2019-08-20 Dynaenergetics Gmbh & Co. Kg Conductive detonating cord for perforating gun
US11808093B2 (en) 2018-07-17 2023-11-07 DynaEnergetics Europe GmbH Oriented perforating system
US11524942B2 (en) 2018-10-10 2022-12-13 Vtv Therapeutics Llc Metabolites of [3-(4-{2-butyl-1-[4-(4-chloro-phenoxy)-phenyl]-1H-imidazol-4 yl}-phenoxy)-propyl]-diethyl-amine
US11970457B2 (en) 2018-10-10 2024-04-30 Vtv Therapeutics Llc Metabolites of [3-(4-(2-butyl-1-[4-(4-chloro-phenoxy)-phenyl]-1H-imidazol-4-yl)-phenoxy)-propyl]-diethyl-amine
US11761281B2 (en) 2019-10-01 2023-09-19 DynaEnergetics Europe GmbH Shaped power charge with integrated initiator
US11946728B2 (en) 2019-12-10 2024-04-02 DynaEnergetics Europe GmbH Initiator head with circuit board
US11814915B2 (en) 2020-03-20 2023-11-14 DynaEnergetics Europe GmbH Adapter assembly for use with a wellbore tool string
US11225848B2 (en) 2020-03-20 2022-01-18 DynaEnergetics Europe GmbH Tandem seal adapter, adapter assembly with tandem seal adapter, and wellbore tool string with adapter assembly
US11753889B1 (en) 2022-07-13 2023-09-12 DynaEnergetics Europe GmbH Gas driven wireline release tool

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Publication number Publication date
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