DE102004043744A1 - Method for the controlled ignition of priming powder used in pyrotechnic applications and in blasting comprises carrying out the ignition using an ignition set which is ignited either electrically or using an ignition cord - Google Patents

Method for the controlled ignition of priming powder used in pyrotechnic applications and in blasting comprises carrying out the ignition using an ignition set which is ignited either electrically or using an ignition cord Download PDF

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Publication number
DE102004043744A1
DE102004043744A1 DE200410043744 DE102004043744A DE102004043744A1 DE 102004043744 A1 DE102004043744 A1 DE 102004043744A1 DE 200410043744 DE200410043744 DE 200410043744 DE 102004043744 A DE102004043744 A DE 102004043744A DE 102004043744 A1 DE102004043744 A1 DE 102004043744A1
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Prior art keywords
ignition
powder
ignited
electrically
bang
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DE200410043744
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German (de)
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Achim Brauch
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D3/00—Particular applications of blasting techniques
    • F42D3/04—Particular applications of blasting techniques for rock blasting
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B31/00—Compositions containing an inorganic nitrogen-oxygen salt
    • C06B31/02—Compositions containing an inorganic nitrogen-oxygen salt the salt being an alkali metal or an alkaline earth metal nitrate
    • C06B31/04—Compositions containing an inorganic nitrogen-oxygen salt the salt being an alkali metal or an alkaline earth metal nitrate with carbon or sulfur
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B33/00—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
    • C06B33/04—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide the material being an inorganic nitrogen-oxygen salt
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B33/00—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
    • C06B33/06—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide the material being an inorganic oxygen-halogen salt
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
    • C06C9/00—Chemical contact igniters; Chemical lighters

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)

Abstract

Method for the controlled ignition of priming powder comprises carrying out the ignition using an ignition set which is ignited either electrically or using an ignition cord.

Description

Das in der chemischen Literatur als „Knallpulver" bezeichnete Gemisch bestehend aus 3 Teilen Kaliumnitrat, 1,5 Teilen Schwefel und 1 Teil Kaliumcarbonat wurde erstmals Mitte des 17. Jhds. von Glauber beschrieben.That in the chemical literature The term "bang-powder", consisting of 3 parts of potassium nitrate, 1.5 parts of sulfur and 1 part of potassium carbonate, was first described by Glauber in the middle of the 17th century.

Durch Berührung mit einer Flamme brennt dieses Pulver nur schlecht und unvollständig ab.By contact With a flame, this powder burns only badly and incompletely.

Wird die Mischung aber angeschmolzen (z.B. mit einem Bunsenbrenner über einer Metallscheibe) so erfolgt nach einiger Zeit eine laute, heftige Explosion.Becomes the mixture but melted (for example, with a Bunsen burner over a Metal disc) so after some time a loud, violent Explosion.

Versuche in der Vergangenheit, das Knallpulver mit Hilfe von Zündschnüren, Schwarzpulver oder Sprengkapseln zur Detonation zu bringen waren bisher erfolglos und das Knallpulver fand aus diesem Grund wenig Beachtung in der Fachwelt.tries in the past, the bang-powder with the help of fuses, black powder or To detonate detonators were so far unsuccessful and For this reason, the bang-powder found little attention in the professional world.

Der im Patentanspruch 1 angegebenen Erfindung liegt das Problem zugrunde, einen geeigneten Zünder bzw. Zündmischung zu finden um das Knallpulver aus sicherer Entfernung kontrolliert zur Explosion zu bringen.Of the The invention defined in claim 1 is based on the problem a suitable detonator or ignition mixture to find the bang powder controlled from a safe distance to explode.

Das Problem wird durch das im Patentanspruch 1 aufgeführten Verfahren gelöst.The Problem is solved by the method mentioned in claim 1 solved.

Eine für das Knallpulver geeignete, typische Zündmischung wie sie auch in herkömmlichen pyrotechnischen Sätzen verwendet wird setzt sich wie folgt zusammen: Bariumnitrat 50% Kaliumnitrat 20% Magnalium 20% (Magnesium-Aluminiumlegierung) Schwefel 10% A typical for the blast powder, typical ignition mixture as used in conventional pyrotechnic sets is composed as follows: barium 50% potassium nitrate 20% Magnalium 20% (magnesium-aluminum alloy) sulfur 10%

Die Zündung erfolgt mittels Pulverzündschnur oder elektrisch.The ignition done by means of powder ignition cord or electrically.

Die chemische Zusammensetzung der Zündmischung kann sehr unterschiedlich sein. Durch die Anwesenheit von z. B. Al oder Mg entstehen sehr hohe Verbrennungstemperaturen die genügend Knallpulver anschmelzen um eine Explosion einzuleiten welche auch das restliche, nicht augeschmolzene Knallpulver zur Explosion bringt.The chemical composition of the ignition mixture can be very different. Due to the presence of z. B. Al or Mg produces very high combustion temperatures which are enough bang powders melt to initiate an explosion which also causes the remainder, not blown up with molten powder.

Wichtig ist in allen Fällen, dass ähnlich wie bei Schwarzpulver, das Knallpulver gut verdämmt wird um eine explosive Umsetzung zu erreichen.Important is in all cases, that similar As with black powder, the bang powder is well dammed up to be explosive Achieve implementation.

Da Knallpulver vergleichbare sprengtechnische Eigenschaften wie Schwarzpulver aufweist, kann es in vielen Fällen als Ersatz für Schwarzpulver verwendet werden.There Blast powder comparable explosive properties such as black powder It can, in many cases as replacement for Black powder can be used.

Knallpulver besitzt eine Reihe wesentlicher Vorteile gegenüber Schwarzpulver:

  • – wenig empfindlich gegen Reibung oder Schlag
  • – keine spontane Entzündung durch Funken
  • – keine spontane Entzündung durch Funkenreißendes Werkzeug
  • – wenig empfindlich bei kurzem Kontakt durch eine offene Flamme
Blast powder has a number of significant advantages over black powder:
  • - little sensitivity to friction or shock
  • - no spontaneous ignition by sparks
  • - no spontaneous ignition by sparking tool
  • - little sensitivity to short contact by an open flame

Rauchentwicklung und Explosionsrückstände scheinen bei Knallpulver geringer zu sein als bei Schwarzpulver, doch sollte dieses noch genauer geprüft werden.smoke and explosion arrears seem to be lower with bang powder than with black powder, but should this checked more closely become.

Auch bei der Verarbeitung z.B. der Herstellung von Knallkörpern(Chinaböllern etc.) ist Knallpulver wesentlich handhabungssicherer als Schwarzpulver und als Ersatz hierfür bestens geeignet.Also in processing e.g. the production of bangers (Chinaböllern etc.) bang powder is much easier to handle than black powder and as a substitute for it best for.

Die für die praktischen Versuche verwendeten Knallpulvermischungen setzten sich wie folgt zusammen: KNO3 55–55% K2CO3 18–33% S 17–27% The blast powder blends used for the practical experiments were composed as follows: KNO 3 55-55% K 2 CO 3 18-33% S 17-27%

Claims (4)

Verfahren zur kontrollierten Zündung von Knallpulver in pyrotechnischen Anwendungen und zur Gesteinssprengung. dadurch gekennzeichnet dass die Zündung von Knallpulver mittels eines Zündsatzes erfolgt welcher durch eine Zündschnur oder elektrisch gezündet wird.Method for the controlled ignition of blast powder in pyrotechnic applications and for rock blasting. characterized in that the ignition of bang powder is carried out by means of a Zündsatzes which is ignited by a fuse or electrically. Verfahren nach Patentanspruch 1 dadurch gekennzeichnet dass die Zündsätze als Oxidationsmittel aus den Nitraten oder Perchloraten der Alkali- und Erdalkalimetallen bestehen und als Brennstoff neben Schwefel und/oder Holzkohle besonders feines Aluminium- und/oder Magnesiumpulver enthalten. Die Feinheit des Mg/Al-Pulvers liegt bei 5-10 micron. Solche Zündsätze sind Bestandteil vieler pyrotechnischer Sätze und finden Einsatz in der Feuerwerkerei.Method according to claim 1 characterized that the primings as Oxidizing agent from the nitrates or perchlorates of the alkali metal and alkaline earth metals exist and as fuel in addition to sulfur and / or charcoal particularly fine aluminum and / or magnesium powder contain. The fineness of the Mg / Al powder is 5-10 microns. Such primings are Part of many pyrotechnic phrases and find use in the Pyrotechnics. Verfahren nach Patentanspruch 1 dadurch gekennzeichnet dass die Zündsätze nicht explosionsartig schnell verbrennen, sondern eine Brenndauer von mindestens 3 Sekunden aufweisen.Method according to claim 1 characterized that the primings are not burn explosively fast, but a burning time of at least 3 seconds. Verfahren nach Patentanspruch 1 dadurch gekennzeichnet dass die Zündsätze als feste Presskörper oder lose mit einer dünnen Kunststoffbeschichtung oder ohne dieselbe direkt in das Knallpulver eingebettet sind.Method according to claim 1, characterized in that the priming sets as solid Presskör embedded per or loosely with a thin plastic coating or without it directly into the bang powder.
DE200410043744 2004-09-10 2004-09-10 Method for the controlled ignition of priming powder used in pyrotechnic applications and in blasting comprises carrying out the ignition using an ignition set which is ignited either electrically or using an ignition cord Withdrawn DE102004043744A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200410043744 DE102004043744A1 (en) 2004-09-10 2004-09-10 Method for the controlled ignition of priming powder used in pyrotechnic applications and in blasting comprises carrying out the ignition using an ignition set which is ignited either electrically or using an ignition cord

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DE200410043744 DE102004043744A1 (en) 2004-09-10 2004-09-10 Method for the controlled ignition of priming powder used in pyrotechnic applications and in blasting comprises carrying out the ignition using an ignition set which is ignited either electrically or using an ignition cord

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DE102004043744A1 true DE102004043744A1 (en) 2006-03-30

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