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DE60214041D1 - ACTIVATED INSULATION DEVICE - Google Patents

ACTIVATED INSULATION DEVICE

Info

Publication number
DE60214041D1
DE60214041D1 DE60214041T DE60214041T DE60214041D1 DE 60214041 D1 DE60214041 D1 DE 60214041D1 DE 60214041 T DE60214041 T DE 60214041T DE 60214041 T DE60214041 T DE 60214041T DE 60214041 D1 DE60214041 D1 DE 60214041D1
Authority
DE
Germany
Prior art keywords
stemming
initiator
propellant charge
hole
insulation device
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.)
Expired - Lifetime
Application number
DE60214041T
Other languages
German (de)
Inventor
Dyk Andre Van
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.)
NXCO International Ltd
Original Assignee
NXCO International 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 NXCO International Ltd filed Critical NXCO International Ltd
Application granted granted Critical
Publication of DE60214041D1 publication Critical patent/DE60214041D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C37/00—Other methods or devices for dislodging with or without loading
    • E21C37/06—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole
    • E21C37/14—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole by compressed air; by gas blast; by gasifying liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
    • F42D1/20—Tamping cartridges, i.e. cartridges containing tamping material

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Selective Calling Equipment (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Finger-Pressure Massage (AREA)
  • Catching Or Destruction (AREA)

Abstract

Stemming apparatus which includes a member, a propellant charge and an initiator for igniting the propellant charge. Stemming ( 32 ) is placed into the hole ( 10 ) from the rock face ( 14 ) covering the cartridge to a desired extent. The stemming is consolidated by being tamped in position. A member ( 34 ), which is made from a plastics materials such as polypropylene, is then placed over the stemming ( 32 ). The member has a conical leading end ( 36 ) which faces downwardly into the stemming and, in this example, has a substantially planar trailing end ( 38 ) which faces upwardly. The maximum diameter of the member ( 34 ) is slightly less than the nominal diameter of the hole ( 10 ). A propellant charge ( 40 ) is placed on the member or, preferably, is incorporated in the member under factory conditions. An initiator or igniter ( 42 ) is engaged with the propellant charge. Control leads ( 44 ) lead from the initiator to the control unit which is used for firing the initiator ( 28 ).
DE60214041T 2002-01-03 2002-12-17 ACTIVATED INSULATION DEVICE Expired - Lifetime DE60214041D1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ZA200105469 2002-01-03
ZA200105470 2002-01-03
PCT/ZA2002/000209 WO2003060290A1 (en) 2002-01-03 2002-12-17 Activated stemming device

Publications (1)

Publication Number Publication Date
DE60214041D1 true DE60214041D1 (en) 2006-09-28

Family

ID=27145585

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60214041T Expired - Lifetime DE60214041D1 (en) 2002-01-03 2002-12-17 ACTIVATED INSULATION DEVICE

Country Status (7)

Country Link
US (1) US20060169162A1 (en)
EP (1) EP1463871B1 (en)
AT (1) ATE336640T1 (en)
AU (1) AU2002360867B2 (en)
CA (1) CA2472533A1 (en)
DE (1) DE60214041D1 (en)
WO (1) WO2003060290A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA200407781B (en) 2003-10-03 2005-09-28 Int Tech Llc Blasting and blastiing accessory
AU2005207543A1 (en) * 2004-01-26 2005-08-04 Nxco International Limited Rock breaking cartridge and use thereof
WO2007033387A1 (en) * 2005-05-27 2007-03-22 Marianna Suzanne Van Rensburg Shock tube centering device
RU2451264C1 (en) * 2010-11-22 2012-05-20 Государственное образовательное учреждение высшего профессионального образования "Санкт-Петербургский государственный горный институт имени Г.В. Плеханова (технический университет)" Down-hole stemming
RU2526950C1 (en) * 2013-02-26 2014-08-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Тихоокеанский государственный университет" Fill stemming of blast holes with elements of stone material
CN103267455B (en) * 2013-05-10 2015-04-01 武汉大学 Dam foundation one-step forming drilling blasting method by combining energy dissipation and energy collection of blast hole bottom
AU2015278692B2 (en) * 2014-06-26 2019-09-19 Penhine Proprietary Limited A support device
WO2017205881A1 (en) * 2016-05-26 2017-11-30 Master Blaster Proprietary Limited A method of blasting an open cast blast hole
CN109506533B (en) * 2018-11-21 2024-01-23 中国电建集团成都勘测设计研究院有限公司 Air spacing device for deep hole blasting charge
RU2704694C1 (en) * 2019-05-29 2019-10-30 Акционерное общество "Новосибирский механический завод "Искра" Suspended well stemming
CN116007462B (en) * 2023-02-15 2025-03-11 武汉大学 Hole bottom buffering energy dissipation method for underwater blasting

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3713386A (en) * 1970-06-22 1973-01-30 Colt Ind Operating Corp Range limited projectile system
US3706278A (en) * 1971-02-25 1972-12-19 Us Army Distributed propulsion for guns
US4167139A (en) * 1977-05-23 1979-09-11 Austin Powder Company Time delay primer and method of using same
US5247886A (en) * 1992-10-14 1993-09-28 The Curators Of The University Of Missouri Blast plug and stemming construction for blast holes
EP0753096A4 (en) * 1994-04-14 1999-08-04 Sunburst Excavation Inc Controlled fragmentation of hard rock by pressurization of the bottom of a drill hole
RU2112207C1 (en) * 1994-12-30 1998-05-27 Восточный научно-исследовательский горнорудный институт Method of forming of deep-hole charge
AUPQ591000A0 (en) * 2000-02-29 2000-03-23 Rockmin Pty Ltd Cartridge shell and cartridge for blast holes and method of use
DE60118022D1 (en) * 2000-11-21 2006-05-11 Internat Technologies Llc SPRINGS IN THE BOHRLOCH

Also Published As

Publication number Publication date
EP1463871B1 (en) 2006-08-16
US20060169162A1 (en) 2006-08-03
WO2003060290B1 (en) 2004-05-27
AU2002360867A1 (en) 2003-07-30
AU2002360867B2 (en) 2007-02-15
CA2472533A1 (en) 2003-07-24
ATE336640T1 (en) 2006-09-15
EP1463871A1 (en) 2004-10-06
WO2003060290A1 (en) 2003-07-24

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Legal Events

Date Code Title Description
8332 No legal effect for de