EP2920134A2 - Charges d'amorçage confectionnées sensibles au détonateur pour applications en technique des explosifs et leur utilisation - Google Patents

Charges d'amorçage confectionnées sensibles au détonateur pour applications en technique des explosifs et leur utilisation

Info

Publication number
EP2920134A2
EP2920134A2 EP13802260.3A EP13802260A EP2920134A2 EP 2920134 A2 EP2920134 A2 EP 2920134A2 EP 13802260 A EP13802260 A EP 13802260A EP 2920134 A2 EP2920134 A2 EP 2920134A2
Authority
EP
European Patent Office
Prior art keywords
detonator
sensitive
initiation
charge
weight
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
EP13802260.3A
Other languages
German (de)
English (en)
Other versions
EP2920134B1 (fr
Inventor
Jürgen Klunker
Konrad Ziegler
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.)
Est Energetics GmbH
Original Assignee
Est Energetics GmbH
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 Est Energetics GmbH filed Critical Est Energetics GmbH
Priority to PL13802260T priority Critical patent/PL2920134T3/pl
Priority to RS20170409A priority patent/RS55867B1/sr
Priority to HRP20170639TT priority patent/HRP20170639T1/hr
Priority to SI201330613T priority patent/SI2920134T1/sl
Publication of EP2920134A2 publication Critical patent/EP2920134A2/fr
Application granted granted Critical
Publication of EP2920134B1 publication Critical patent/EP2920134B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B23/00—Compositions characterised by non-explosive or non-thermic constituents
    • C06B23/002—Sensitisers or density reducing agents, foam stabilisers, crystal habit modifiers
    • C06B23/003—Porous or hollow inert particles
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B25/00—Compositions containing a nitrated organic compound
    • C06B25/34—Compositions containing a nitrated organic compound the compound being a nitrated acyclic, alicyclic or heterocyclic amine
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B25/00—Compositions containing a nitrated organic compound
    • C06B25/36—Compositions containing a nitrated organic compound the compound being a nitroparaffin
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
    • C06C7/00—Non-electric detonators; Blasting caps; Primers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D3/00—Particular applications of blasting techniques

Definitions

  • the invention relates to detonator sensitive
  • Ammonium nitrate and mineral oil or diesel oil (English fuel oil), which is used in mining as handling-safe explosive.
  • Initial explosives are found in commercial detonators. Initial explosives are characterized by high sensitivity to friction, shock, impact and heating. Bang Mercury is z. B. already by heating to 160 ° C (fuse) or by a 4 cm height detonated falling 2 kg monkey. The initial detonation with detonators was invented in 1862 by Alfred Nobel. Important initial explosives are
  • Lead styphnate (leadrinitroresorcinate), tetracene,
  • Nickel hydrazine nitrate (NHN), hexamethylene triperoxide diamine (HMTD), acetone peroxide (DADP, TATP or APEX), 3-nitrobenzene diazonium perchlorate, mercury azides,
  • Tetraamine copper (I) chlorate TACC
  • copper acetylide TACC
  • Initiation charges also referred to as an initial enhancement detonator or IV detonator
  • IV detonator is commonly used with compressed, cylindrical tetryl, trotyl, phlegmatized (reduced sensitivity) hexogen, nitropenta, picric acid, and other explosives. All these substances have in common that they have a greater sensitivity to the initial impulse than the explosive of the main charge (eg ANFO, cast TNT, powdery explosives).
  • Rock blasting is often used in addition to blasting cartridges of gelatinized explosive to initiate the main charge from powder explosives or emulsion explosives.
  • the mass and shape of the IV detonator are calculated so that the detonation produces a pulse that causes the main charge to detonate and to ignite
  • Initiation of the IV detonator is by a detonator, an electro detonator or a NE detonator
  • Non-electric detonator (Non-electric detonator) triggered.
  • IV detonators A problem with the previously used IV detonators is that they either consist of military explosives that are no longer available in the long term (TNT pressed,
  • Composition B cast, etc. or classic impact cartridges made of gelatinous explosives (dynamite successor on
  • US 3 902 933 A discloses an initial burst charge for the detonation of nitromethane.
  • the initial explosive charge is formed by a polyurethane foam which contains dispersed microspheres.
  • microspheres may be hollow glass microspheres, resin beads, ceramic beads, etc.
  • the inner channel has a small wall thickness to improve the detonation.
  • US 3 797 392 A discloses microspheres which are used to sensitize liquid explosives. These microspheres, such as glass bubbles, ceramic microspheres or silicon carbide are immediately dispersed in the liquid explosive and then ignited. In addition, the use of open-pored
  • Polyurethane foams described. is therefore to provide an IV
  • Detonator specify which is safe applicable, inexpensive and is safe to produce and also safe to handle health.
  • Initiation charge which comprises a mixture comprising a nitroalkane and a void-forming agent and a receptacle for an ignition device.
  • nitroalkanes are suitable for use in detonator sensitive
  • Nitroalkanes may be chemically, e.g. by amine addition and / or mechanically by the creation of small cavities or gas-filled cavities (foaming), i.e. they become susceptible to explosive capsules and behave like explosive explosives. To get the cavitation in
  • nitromethane blends produced with commercially available glass micro balloons (GMB) which are more than 6000 m / s detonated and capsule-sensitive (Presles et al., Shock Waves, April 1995, Volume 4, Issue 6 , Pp. 325-329).
  • Detonator-sensitive initiation charge formed from a liquid-impermeable material. This avoids leakage of the nitroalkane.
  • the detonator-sensitive initiation charge has a concave curvature which is arranged on the opposite side of the receptacle for the ignition device. Under a concave curvature is in the sense of the present
  • the concave curvature has a metallic coating.
  • the metallic coating can be made of aluminum and can be arranged on the surface of the concave curvature by means of spraying, steaming or as a metallic foil.
  • the metallic coating of the concave curvature causes a reinforcing initial pulse in a predetermined direction.
  • the concave curvature with metallic coating is of particular importance for achieving a high chemical reaction rate at which the conversion process comes very close to the theoretical value. This will be the
  • the ignition device is a detonator, detonating cord or a non-electric detonator.
  • the detonator-sensitive initiation charge has a suitable wall thickness. This ensures a secure ignition transfer from the capsule or string to the nitroalkane mixture.
  • the wall thickness is dependent on the material of the wall and the mixture used.
  • the nitroalkane is selected from a group of 1 to 3
  • the nitroalkane is nitromethane.
  • the cavity-forming means is designed as a microglass hollow sphere (GMB).
  • the cavity-forming agent is designed as a hollow glass microballoon (GMB) with a particle size of 20-200 ⁇ m, preferably 40-150 ⁇ m, particularly preferably 80-120 ⁇ m.
  • GMB hollow glass microballoon
  • the cavity-forming means is designed as a hollow glass microballoon (GMB) with a grain size of substantially 100 ⁇ m.
  • GMB hollow glass microballoon
  • the mixture comprises Aerosil.
  • Aerosil is meant here a fumed silica.
  • the Mixture 1.5-10% by weight, preferably 3-8% by weight, particularly preferably 5-7% by weight of Aerosil, 0.2-10% by weight, preferably 0.5-5% by weight %, more preferably 0.8-2% by weight
  • Microglass hollow sphere as well as 85-98,3 Gew. ⁇ 6, preferably 89-95, particularly preferably 91-93 wt .-% nitromethane.
  • the mixture comprises 6.5% by weight of Aerosil, 1% by weight of hollow glass microbeads (GMB) having a particle size of essentially 100 ⁇ m and 92.5% by weight of nitromethane.
  • the mixture further comprises at least one oxygen-containing compound selected from the group of nitrates for increasing the oxygen balance.
  • the oxygen-containing compound is ammonium nitrate.
  • Initiation charges are used to initiate non-capsule-sensitive commercial explosives, preferably in downhole and underground wells, to initiate larger booster charges and to use them directly
  • Nitroaromatics which are suspected of being carcinogenic and no nitro-esters, which are physiologically problematic by possible vasodilation, formed. This avoids health problems for the users.
  • the invention is preferred
  • Niroalkane nitromethane is a cheap, due to
  • nitromethane is not a classic explosive, which makes transport and storage convenient, and it has Storage Class 3 (Flammable Liquids).
  • nitromethane has a low toxicity: LD50 oral rat: 940 mg / kg, WGK 2.
  • the detonator-sensitive initiation charges according to the invention are in the
  • the components contained in the mixture are not explosives, which requires only low storage and transport costs.
  • Embodiments are intended to describe the invention without limiting it.
  • pure ammonium nitrate and ANFO (each with 13 g of the
  • composition according to the invention in a cylindrical initial charge) with the following composition for the detonative reaction: 6.5%, Aerosil, 1% GMBs about 100 ym, 92.5% nitromethane.
  • Detonation velocity of about 4500 m / s were measured, which is a sufficient suitability of the mixture for the initiation of non-capsule-sensitive commercial

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Abstract

L'invention concerne des charges d'amorçage confectionnées sensibles au détonateur destinées à des applications dans le domaine de la technique des explosifs. La charge d'amorçage comprend un nitroalcane et un agent formant des vides.
EP13802260.3A 2012-11-14 2013-11-12 Charges d'amorçage confectionnées sensibles au détonateur pour applications en technique des explosifs et leur utilisation Active EP2920134B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PL13802260T PL2920134T3 (pl) 2012-11-14 2013-11-12 Wrażliwe na detonator, konfekcjonowane ładunki inicjujące dla zastosowań w technice strzelniczej oraz ich zastosowanie
RS20170409A RS55867B1 (sr) 2012-11-14 2013-11-12 Spremno pojačivačko eksplozivno punjenje osetljivo na aktiviranje pomoću detonatora, namenjeno primeni u miniranju kao i način njegove upotrebe
HRP20170639TT HRP20170639T1 (hr) 2012-11-14 2013-11-12 Spremno pojačivačko eksplozivno punjenje osjetljivo na aktiviranje pomoću detonatora, namijenjeno primjeni u miniranju kao i način njegove uporabe
SI201330613T SI2920134T1 (sl) 2012-11-14 2013-11-12 Na detonator občutljivi izdelani inicialni eksplozivi za razstreljevanje in njihova uporaba

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012110955.9A DE102012110955B4 (de) 2012-11-14 2012-11-14 Sprengkapselempfindliche konfektionierte Initiierungsladungen für sprengtechnische Anwendungen und deren Verwendung
PCT/EP2013/073658 WO2014076099A2 (fr) 2012-11-14 2013-11-12 Charges d'amorçage confectionnées sensibles au détonateur pour applications en technique des explosifs et leur utilisation

Publications (2)

Publication Number Publication Date
EP2920134A2 true EP2920134A2 (fr) 2015-09-23
EP2920134B1 EP2920134B1 (fr) 2017-02-01

Family

ID=49726701

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13802260.3A Active EP2920134B1 (fr) 2012-11-14 2013-11-12 Charges d'amorçage confectionnées sensibles au détonateur pour applications en technique des explosifs et leur utilisation

Country Status (14)

Country Link
US (2) US10227266B2 (fr)
EP (1) EP2920134B1 (fr)
AU (1) AU2013346947B2 (fr)
DE (1) DE102012110955B4 (fr)
DK (1) DK2920134T3 (fr)
ES (1) ES2624300T3 (fr)
HR (1) HRP20170639T1 (fr)
HU (1) HUE032763T2 (fr)
LT (1) LT2920134T (fr)
PL (1) PL2920134T3 (fr)
PT (1) PT2920134T (fr)
RS (1) RS55867B1 (fr)
SI (1) SI2920134T1 (fr)
WO (1) WO2014076099A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190085836A (ko) 2018-10-23 2019-07-19 권문종 기폭용 라이너를 이용한 발파공법

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3338165A (en) 1966-08-11 1967-08-29 Commercial Solvents Corp Gelled nitromethane explosive containing fluid encapsulations
US3475236A (en) * 1968-04-17 1969-10-28 Seispower Corp Non-aqueous cap-sensitive explosive containing gelled nitromethane and inorganic nitrate oxidizer salt
OA03866A (fr) 1970-10-08 1971-12-24 Kinetics Int Corp Composition explosive, procédé pour l'activation et la mise à feu d'un explosif et enveloppe pour l'explosif.
US3713915A (en) 1970-11-23 1973-01-30 Amoco Prod Co Thickened nitromethane explosive containing encapsulated sensitizer
JPS5328453B1 (fr) * 1971-05-22 1978-08-15
US3797392A (en) * 1973-02-12 1974-03-19 R Eckels Reversible sensitization of liquid explosives
US3902933A (en) * 1973-02-20 1975-09-02 Commercial Solvents Corp Primer composition of nitromethane, polymeric foam, and hollow spheres
US3926119A (en) * 1974-01-28 1975-12-16 Tyler Holding Company Explosive device
JPS5585498A (en) * 1978-12-25 1980-06-27 Boeicho Gijutsu Kenkyu Honbuch Liquid or gell explosive
US4334476A (en) * 1980-07-02 1982-06-15 Mining Services International Corporation Primer cup
SE456528B (sv) * 1986-02-17 1988-10-10 Nobel Kemi Ab Tendare
US5970841A (en) 1997-04-01 1999-10-26 Trocino; Joseph L. Humanitarian demining device
US6007648A (en) * 1998-02-23 1999-12-28 The United States Of America As Represented By The Secretary Of The Army Liquid explosive composition
CA2288515C (fr) 1999-03-08 2007-10-23 Mrel Group Of Companies Limited Un ensemble et une methode simples pour des operations humanitaires de deminage et l'elimination de materiel explosif
US6960267B1 (en) * 2003-06-26 2005-11-01 Nixon Iii William P Multi-component liquid explosive composition and method

Also Published As

Publication number Publication date
US20160052835A1 (en) 2016-02-25
AU2013346947A1 (en) 2017-04-27
DE102012110955A8 (de) 2014-09-11
AU2013346947B2 (en) 2017-06-15
PL2920134T3 (pl) 2017-08-31
PT2920134T (pt) 2017-05-12
HRP20170639T1 (hr) 2017-08-11
DK2920134T3 (en) 2017-05-01
HUE032763T2 (hu) 2017-10-30
DE102012110955B4 (de) 2016-12-15
US20190210937A1 (en) 2019-07-11
LT2920134T (lt) 2017-07-25
WO2014076099A3 (fr) 2014-07-31
RS55867B1 (sr) 2017-08-31
ES2624300T3 (es) 2017-07-13
EP2920134B1 (fr) 2017-02-01
SI2920134T1 (sl) 2017-08-31
DE102012110955A1 (de) 2014-05-15
US10227266B2 (en) 2019-03-12
WO2014076099A2 (fr) 2014-05-22

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