EP2079979B1 - A detonation tube with improved separability from the processed broken stone - Google Patents

A detonation tube with improved separability from the processed broken stone Download PDF

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Publication number
EP2079979B1
EP2079979B1 EP07817391A EP07817391A EP2079979B1 EP 2079979 B1 EP2079979 B1 EP 2079979B1 EP 07817391 A EP07817391 A EP 07817391A EP 07817391 A EP07817391 A EP 07817391A EP 2079979 B1 EP2079979 B1 EP 2079979B1
Authority
EP
European Patent Office
Prior art keywords
basis
magnetic
material component
main material
iron
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.)
Active
Application number
EP07817391A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2079979A1 (en
Inventor
Pavel Valenta
Jaromir Fiala
Zlatko Srank
Libor Mastny
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.)
Austin Detonator sro
Original Assignee
Austin Detonator sro
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Filing date
Publication date
Application filed by Austin Detonator sro filed Critical Austin Detonator sro
Publication of EP2079979A1 publication Critical patent/EP2079979A1/en
Application granted granted Critical
Publication of EP2079979B1 publication Critical patent/EP2079979B1/en
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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
    • F42B3/11—Initiators therefor characterised by the material used, e.g. for initiator case or electric leads
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
    • C06C5/00—Fuses, e.g. fuse cords
    • C06C5/04—Detonating fuses
    • 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

Definitions

  • the invention deals with double-layer, three-layer or multi-layer detonation tubes, also referred to as the Shock Tube type, used for industrial non-electric detonators, as described for instance in document US 5243913 A .
  • Shock Tube type used for industrial non-electric detonators, as described for instance in document US 5243913 A .
  • it deals with the design of their body to enable economically acceptable separation of remainders of such detonation tubes of non-electric detonators after the execution of blasting work from the other substances from the processed mined material.
  • a detonation tube designed as double or multi-layer detonation tube of an industrial non-electric detonator containing the active component of the detonator stored in an at least double-layered tubular body or package in accordance with the presented invention wherein at least one layer of the body or package of this detonation tubes is made of a magnetic material where this magnetic material is produced as a mixture of the magnetic and a non-magnetic main material component characterized in that the content of the magnetic main material component in individual layers of the body or package of the detonation tube is 10 to 30% of weight, related to the weight of the individual layers of the body or package of the detonation tube.
  • the magnetic main material component may be beneficially produced on the basis of magnetite - Fe 3 O 4 , or on the basis of ferrite with the general formula Me II Fe 2 O 4 , where Me represents Co, Mn, Ni, Ca, Cu, Zn, Mg, or ferrite with the general formula Ln II Fe 2 O 4 , where Ln represents noble earth elements, or on the basis of noble earth elements in the oxidation degree II, or on the basis of ferric oxide in the modification ⁇ -Fe 2 O 3 , or on the basis of powder iron, or on the basis of a magnetic alloy of iron or on the basis of a mixture or alloy containing the above mentioned magnetic partial components, where advantageous magnetic alloys of iron are alloys containing at least noble earth elements, or especially advantageous magnetic alloys of iron are alloys containing at least one noble earth element and B and/or Co while advantageous metallic noble earth elements are Nd and Sm.
  • the magnetic main material component is made on the basis of magnetically hard materials of the AlNiCo or FeCoCr type.
  • the non-magnetic main material component is beneficially created on the basis of a plastic material from the group of polymers or copolymers while it is especially advantageous if the polymer or copolymer is represented by substances from the PE, PP, PTFE plastic material group or ethylene copolymer with derivatives of methacrylic acid.
  • detonation tubes are created where the magnetic substances contained in its body or package, at least in one layer enable magnetic separation of remainders of this tube from the mined material, which eliminates the hitherto considerable disadvantage of the necessity of manual separation of these remainders or in comparison with not performed separation reduces the risk of clogging or damaging processing equipment of broken stone contaminated by remainders of detonation tubes.
  • detonation tubes made in accordance with the presented invention comply with requirements for cutting and rubbing resistance and the requirement for electric non-conductivity and also maintain their further benefits as high work safety and variability of creation of timed detonation networks as well as high resistance to water and humidity.
  • a double-layer detonation tube was prepared.
  • the first layer was based on ethylene copolymer with methacrylic acid and the second layer was based on PE containing 80 weight parts of PE and 20 weight parts of magnetite - FeFe 2 O 4 .
  • the detonation tube prepared this way complied with the required rubbing and cutting resistance as well as the requirement of non-conductivity in accordance with relevant technical standards.
  • a three-layer detonation tube was prepared.
  • the first layer was based on the same composition as in example 1, the second layer was based on PE containing 85 weight parts of magnetite - FeFe 2 O 4 and the third layer was based on PE containing 75 weight parts of PE and 25 weight parts of magnetite - FeFe 2 O 4 .
  • This detonation tube also complied with the required rubbing and cutting resistance as well as the requirement of non-conductivity in accordance with relevant technical standards.
  • detonation tubes prepared in accordance with examples 1 and 2 were used for sets of electric detonators. After the execution of blasting work with the use of these sets the removal efficiency of remainders of detonation tubes from the mined rock with a magnetic field was tested. In both the cases 100% efficiency of removal of remainders of detonation tubes was proved.
  • the equipment based on the presented invention can be used for blasting work where the resulting broken material is subsequently processed and the remainders of detonation tubes must be separated from the broken material.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Processing Of Solid Wastes (AREA)
  • Soft Magnetic Materials (AREA)
EP07817391A 2006-10-27 2007-10-26 A detonation tube with improved separability from the processed broken stone Active EP2079979B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZ2006-682A CZ306750B6 (cs) 2006-10-27 2006-10-27 Detonační trubice průmyslové neelektrické rozbušky pro zlepšení separovatelnosti od zpracovávané rubaniny
PCT/CZ2007/000095 WO2008049379A1 (en) 2006-10-27 2007-10-26 A detonation tube with improved separability from the processed broken stone

Publications (2)

Publication Number Publication Date
EP2079979A1 EP2079979A1 (en) 2009-07-22
EP2079979B1 true EP2079979B1 (en) 2011-08-03

Family

ID=39047539

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07817391A Active EP2079979B1 (en) 2006-10-27 2007-10-26 A detonation tube with improved separability from the processed broken stone

Country Status (7)

Country Link
US (1) US20100000437A1 (cs)
EP (1) EP2079979B1 (cs)
AT (1) ATE519089T1 (cs)
CZ (1) CZ306750B6 (cs)
RU (1) RU2447394C2 (cs)
UA (1) UA94773C2 (cs)
WO (1) WO2008049379A1 (cs)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101871751B (zh) * 2010-06-04 2012-12-26 武汉人天包装技术有限公司 民爆行业导爆管喷码及视觉自动检测装置
CN110964151A (zh) * 2019-12-25 2020-04-07 浙江鑫牛管业有限公司 一种磁粉改性ppr材料制备方法及其加工管材的方法

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE356500B (cs) * 1968-07-15 1973-05-28 Nitro Nobel Ab
US4539433A (en) * 1982-11-24 1985-09-03 Tdk Corporation Electromagnetic shield
SU1655100A1 (ru) * 1989-05-19 1997-05-20 Всесоюзный научно-исследовательский институт по строительству магистральных трубопроводов Детонирующий шнур
US5208419A (en) * 1991-05-01 1993-05-04 Ici Canada Inc. Shock tubing that is IR transparent color-coded
GB9119217D0 (en) * 1991-09-09 1991-10-23 Ici Plc Low energy fuse
GB9119220D0 (en) * 1991-09-09 1991-10-23 Ici Plc Blasting accessory
GB9222001D0 (en) * 1992-10-20 1992-12-02 Ici Plc Shock tube initator
SE500323C2 (sv) * 1992-11-17 1994-06-06 Dyno Industrier As Lågenergistubin och sätt för dess framställning
RU2081101C1 (ru) * 1993-06-01 1997-06-10 Российский федеральный ядерный центр - Всероссийский научно-исследовательский институт технической физики Детонирующий шнур
US5545853A (en) * 1993-07-19 1996-08-13 Champlain Cable Corporation Surge-protected cable
GB2281378B (en) * 1993-08-27 1997-04-30 Autoliv Dev Improvements in or relating to a shock tube arrangement
US6247410B1 (en) * 1998-12-10 2001-06-19 The United States Of America As Represented By The Secretary Of The Navy High-output insensitive munition detonating cord
US6298784B1 (en) * 1999-10-27 2001-10-09 Talley Defense Systems, Inc. Heat transfer delay
US6578490B1 (en) * 2000-10-03 2003-06-17 Bradley Jay Francisco Ignitor apparatus
AU2002320066B2 (en) * 2001-06-06 2004-10-14 Senex Explosives, Inc System for the initiation of rounds of individually delayed detonators
WO2003088282A1 (en) * 2002-04-12 2003-10-23 Jongo Yoon Enameled wire having magnetic reluctance properties and preparation method thereof, and coil using the same and preparation method thereof
US6843178B2 (en) * 2002-08-22 2005-01-18 Lockheed Martin Corporation Electromagnetic pulse transmitting system and method
BR0303546B8 (pt) * 2003-09-19 2013-02-19 tubo de choque tÉrmico.
CA2548025C (en) * 2003-12-01 2010-04-27 Mas Zengrange (Nz) Ltd Shock tube initiator
US7451700B1 (en) * 2004-04-14 2008-11-18 Raytheon Company Detonator system having linear actuator
US6998538B1 (en) * 2004-07-30 2006-02-14 Ulectra Corporation Integrated power and data insulated electrical cable having a metallic outer jacket
US7117796B1 (en) * 2005-12-29 2006-10-10 The United States Of America As Represented By The Secretary Of The Navy Igniter for exothermic torch rod
CZ307210B6 (cs) * 2006-10-27 2018-03-28 Austin Detonator S.R.O. Izolace, obklopující vodič elektrického proudu, pro zlepšení separovatelnosti od zpracovávané rubaniny

Also Published As

Publication number Publication date
EP2079979A1 (en) 2009-07-22
UA94773C2 (ru) 2011-06-10
CZ306750B6 (cs) 2017-06-14
WO2008049379A1 (en) 2008-05-02
RU2009119407A (ru) 2010-12-10
RU2447394C2 (ru) 2012-04-10
CZ2006682A3 (cs) 2008-05-07
ATE519089T1 (de) 2011-08-15
US20100000437A1 (en) 2010-01-07

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