DE4221666C1 - Method for opening bodies contg. explosive material - uses compressed water jet with integrated mineral and/or metal grinding particles - Google Patents

Method for opening bodies contg. explosive material - uses compressed water jet with integrated mineral and/or metal grinding particles

Info

Publication number
DE4221666C1
DE4221666C1 DE4221666A DE4221666A DE4221666C1 DE 4221666 C1 DE4221666 C1 DE 4221666C1 DE 4221666 A DE4221666 A DE 4221666A DE 4221666 A DE4221666 A DE 4221666A DE 4221666 C1 DE4221666 C1 DE 4221666C1
Authority
DE
Germany
Prior art keywords
water jet
contg
explosive material
bodies
opening
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 - Fee Related
Application number
DE4221666A
Other languages
German (de)
Inventor
Juergen Wilhelm
Rainald Haeber
Joachim Thode
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.)
ALBA INDUSTRIE & UMWELTSCHUTZSERVICE GMBH, 23569 L
Original Assignee
Alba Ind & Umweltschutzservice
SIVG SYSTEM INSTANDSETZUNGS UN
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 Alba Ind & Umweltschutzservice, SIVG SYSTEM INSTANDSETZUNGS UN filed Critical Alba Ind & Umweltschutzservice
Priority to DE4221666A priority Critical patent/DE4221666C1/en
Application granted granted Critical
Publication of DE4221666C1 publication Critical patent/DE4221666C1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B33/00—Manufacture of ammunition; Dismantling of ammunition; Apparatus therefor
    • F42B33/06—Dismantling fuzes, cartridges, projectiles, missiles, rockets or bombs
    • F42B33/062—Dismantling fuzes, cartridges, projectiles, missiles, rockets or bombs by high-pressure water jet means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/04—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass
    • B24C1/045—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass for cutting

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

The method is for the opening of bodies (2) contg. explosive material and involves the use of a compressed water jet (8) with integrated mineral and/or metallic grinding particles at a temp. of 8-20 deg.C and at a pressure of 100-700 bars via a nozzle (1) for cutting the body, maintaining a relative movement between the nozzle and the body. The body is cut with the water jet (8) from the outside to the inside. The body (2) is cut down to a very thin residual wall thickness (10) and for final sepn. of the body shearing or bending forces are applied. USE/ADVANTAGE - To destroy munitions contg. explosive material. The method is without danger in opening bodies contg. explosive material.

Description

Die Erfindung bezieht sich auf ein Verfahren zum Öffnen von explosivstoffhaltigen Körpern.The invention relates to a method for opening bodies containing explosives.

Aus der DE 40 10 757 C1 ist ein Verfahren bekannt, bei dem zum Delaborieren von mit Sprengstoff gefüllten Körpern der Sprengstoff mit Wasser unter hohem Druck durch Düsen heraus­ gespült wird.From DE 40 10 757 C1 a method is known in which for the dismantling of bodies filled with explosives Explosives with water under high pressure through nozzles is rinsed.

Zur Delaborierung von explosiven Objekten ist es aus der DE 39 13 479 C1 bekannt, die Objekte unter Wasser durch ein Wasser-Hochdruckstrahlgerät in einzelne Teile zu zerlegen.It is from DE for the detachment of explosive objects 39 13 479 C1, the objects under water through a Disassemble the water high-pressure jet device into individual parts.

Mineralische als auch metallische Schleifpartikel als Be­ standteile eines Wasserstrahles sind aus der FR 24 00 069 bzw. aus der JP 1-195 294 (A) bekannt.Mineral as well as metallic abrasive particles as Be Components of a water jet are from FR 24 00 069 or from JP 1-195 294 (A) known.

Zur umweltgerechten Entsorgung von Munition ist deren Delabo­ rierung erforderlich. Bei komplizierten, gegebenenfalls un­ lösbaren form- oder kraftschlüssigen Verbindungsstellen be­ steht die Notwendigkeit des Öffnens von Munitionsteilen. Auch aus technologischen Gründen kann das Öffnen von mit Explosiv­ stoffen gefüllten Hohlkörpern an festgelegten Stellen erfor­ derlich sein.The Delabo is for environmentally friendly disposal of ammunition necessary. For complicated, possibly un releasable positive or non-positive connections there is the need to open ammunition parts. Also For technological reasons, opening with explosives  filled hollow bodies at specified points to be such.

Dazu ist es erforderlich, eine Methode zu finden, mit der ge­ fahrlos mit Explosivstoffen gefüllte Körper bearbeitet werden können, beispielsweise durch Zerschneiden, Auftrennen, Öff­ nen, Anbohren und dergleichen.For this it is necessary to find a method with which ge bodies that are filled with explosives can be processed without driving can, for example by cutting, ripping, opening nen, drilling and the like.

Der Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren vorzuschlagen, das ein gefahrloses Öffnen oder Trennen durch Schneiden oder Anbohren von Körpern, die mit Explosivstoffen, sowie pyrotechnischen Bestandteilen gefüllt sind, ermöglicht. The invention is therefore based on the object of a method propose a safe opening or disconnection by Cutting or drilling into bodies that contain explosives, as well as pyrotechnic components are made possible.  

Die Erfindung löst diese Aufgabe entsprechend den kennzeichnenden Merkmalen des Anspruches 1.The invention solves this problem in accordance with the characterizing Features of claim 1.

Vorteilhafte Weiterbildungen der Erfindung sind den Unteransprüchen zu entnehmen.Advantageous developments of the invention are set out in the subclaims remove.

Das erfindungsgemäße Kaltschneidesystem schneidet mit einem kompri­ mierten Wasserstrahl. Der Zusatz von umweltfreundlichen Schleifpartikeln verleiht dem Wasserstrahl Trenneigenschaften, die herkömmlichen Verfahren wie Sägen, Drehen, Fräsen, Abscheren, Brechen nach Tiefkühlen mit Stickstoff und dergleichen weit überlegen sind.The cold cutting system according to the invention cuts with a kompri water jet. The addition of environmentally friendly abrasive particles gives the water jet separation properties, the conventional Processes such as sawing, turning, milling, shearing, breaking Freezing with nitrogen and the like are far superior.

Bei dem im niederen Druckbereich arbeitenden System wird durch das Wasser die infolge des Trennens entstehende Wärmemenge abgeführt. Die Gefahr der Zündung eines im Körper angeordneten Explosivstoffes ist dadurch sicher vermieden.In the system working in the lower pressure range, the Water dissipates the amount of heat generated as a result of the separation. The There is a risk of ignition of an explosive arranged in the body thereby safely avoided.

Eine rationelle Methode zum Trennen von explosivstoffhaltigen Körpern liegt nach dem Anspruch 2 vor. Je nach Notwendigkeit kann ein Quer- oder Längsschnitt zur Zerschneidung des Körpers durchgeführt werden.A rational method for separating bodies containing explosives is according to claim 2. Depending on the need, a cross or longitudinal cut to cut the body.

Gemäß dem Anspruch 3 ist es durch einen sogenannten Tangentialschnitt möglich, einen Teil des Körpers nicht zu zerschneiden, um nach dem An­ spruch 4 die Sphäre des Sprengstoffes unberührt zu lassen. Somit wird eine zusätzliche Sicherheit in bezug auf die unerwünschte Zündung des Explosivstoffes erreicht. Weiterhin ist eine Kontaminierung des Wasserstrahles ausgeschlossen, da durch das Schneiden bis auf eine Restwanddicke der Explosivstoff nicht ausgespült werden kann. According to claim 3, it is through a so-called tangential cut possible not to cut a part of the body in order to after the on Proverb 4 to leave the explosive sphere untouched. Thus an additional security against the unwanted ignition of the Explosive reached. Contamination of the Water jet excluded because of cutting except for one Residual wall thickness of the explosive cannot be rinsed out.  

Das erfindungsgemäße Verfahren ist sowohl im zivilen Bereich der An­ wendung von Explosivstoffen, wie Bergbau, als auch im militärischen Bereich bei Munition verschiedenster Art sowie Zündmitteln und auch in der Pyrotechnik einsetzbar. Der wesentliche Erfindungsgedanke ist die Kombination des Eintrages der Trennenergie mit der Abführung der entstehenden Wärmemenge durch das Wasser der Schneidsuspension bei gleichzeitig relativ geringem Druck und dadurch Verhinderung des Überschreitens der Zündgrenze des Explosivstoffes.The inventive method is both in the civilian area use of explosives, such as mining, as well as in the military Area of various types of ammunition as well as ignition means and also applicable in pyrotechnics. The main idea of the invention is the combination of the entry of the separation energy with the removal of the amount of heat generated by the water of the cutting suspension at the same time relatively low pressure and thereby preventing the Exceeding the explosive limit of the explosive.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung prinzipiell dargestellt. Es zeigtAn embodiment of the invention is in principle in the drawing shown. It shows

Fig. 1 eine Schneidvorrichtung und Fig. 1 is a cutting device and

Fig. 2 einen Schnitt II-II nach Fig. 1 durch einen explosivstoff­ haltigen Körper. Fig. 2 shows a section II-II of FIG. 1 through an explosive-containing body.

Nach Fig. 1 ist eine Düse 1 ortsfest angeordnet, während eine Munition 2 bestehend aus einer Geschoßhülle 3 und einer Sprengladung 4 über eine nicht gezeigte Vorrichtung sowohl in Pfeilrichtung 5 um die Rota­ tionsachse 6 der Munition 2 gedreht als auch in Pfeilrichtung 7 recht­ winklig zu einem Wasserstrahl 8 der Düse 1 verschoben wird.According to Fig. 1, a nozzle 1 is disposed stationary, while an ammunition 2 consisting of a projectile casing 3 and an explosive charge 4 tion axis through means not shown, both in the direction of arrow 5 about the Rota 6 of the ammunition 2 is rotated as a right angle in the direction of arrow 7 to a water jet 8 of the nozzle 1 is moved.

Der Schnitt durch den komprimierten Wasserstrahl mit integrierten Schleifpartikeln aus einem natürlichen Mineral bei einer Wassertempe­ ratur von 15°C und unter einem Druck von 300 bar erfolgt bis zu einer Restwanddicke 10 der Geschoßhülle 3. Die Munition 2 wird danach aufge­ trennt durch Aufbringen von Biegungs- oder Torsionskräften auf die Munition 2, wobei der Bruch in der mit 12 bezeichneten Ebene erfolgt. The cut through the compressed water jet with integrated abrasive particles made of a natural mineral at a water temperature of 15 ° C. and under a pressure of 300 bar is carried out up to a residual wall thickness 10 of the shell 3 . The ammunition 2 is then separated by applying bending or torsional forces on the ammunition 2 , the break taking place in the plane designated by 12 .

Mit dem erfindungsgemäßen Verfahren sind nicht nur Munitionshüllen aus den verschiedensten Stählen und ihren Legierungen sondern auch solche aus entzündlichen Materialien, wie Aluminium, Kunststoff, Papier, Pappe oder Zirkonium ohne die Gefahr der Entzündung aufzutrennen.With the method according to the invention, not only ammunition casings are made various steels and their alloys but also such from flammable materials such as aluminum, plastic, paper, Cardboard or zirconium without separating the risk of ignition.

Dieses Verfahren ermöglicht auch Munitionshüllen bis zu einer Rest­ wanddicke von 1 mm aufzuschneiden.This procedure also allows ammunition casings up to a remnant cut a wall thickness of 1 mm.

Generell können sowohl rotationssymmetrische Munition als auch davon abweichende Munitionsformen durchtrennt bzw. bis zu einer Restwand­ dicke aufgetrennt werden. Wesentlich hierbei ist, daß keine Verformun­ gen oder Spannungen im bearbeiteten Material auftreten. Damit ist eine weitere Sicherheit beim Auftrennen von Munitionshüllen gegeben, da ein plötzlicher Kerbbruch trotz sachgemäßer Lagerung der Munition sicher vermieden ist.Generally, both rotationally symmetrical ammunition can be used as well different forms of ammunition cut or up to a residual wall thick can be separated. It is essential here that no deformation conditions or tensions occur in the processed material. So that's one given further security when opening ammunition casings, because a Sudden notch break is safe despite proper storage of the ammunition is avoided.

Claims (4)

1. Verfahren zum Öffnen von explosivstoffhaltigen Körpern (2), dadurch gekennzeichnet, daß man einen komprimierten Wasserstrahl (8) mit inte­ grierten mineralischen und/oder metallischen Schleifpar­ tikeln bei einer Temperatur von 8-20°C und bei einem Druck von 100-700 bar über eine abnutzungsarme Düse (1) zum Schneiden des Körpers (2) unter Einhaltung einer Relativbewegung zwischen der Düse (1) und dem Körper (2) einsetzt.1. A method for opening explosive bodies ( 2 ), characterized in that a compressed water jet ( 8 ) with inte grated mineral and / or metallic abrasive particles at a temperature of 8-20 ° C and at a pressure of 100-700 bar via a low-wear nozzle ( 1 ) for cutting the body ( 2 ) while maintaining a relative movement between the nozzle ( 1 ) and the body ( 2 ). 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß man den Körper (2) mit dem Wasserstrahl (8) von au­ ßen nach innen schneidet.2. The method according to claim 1, characterized in that one cuts the body ( 2 ) with the water jet ( 8 ) from the outside inwards. 3. Verfahren nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß man den sich entgegen dem Wasserstrahl (8) oder in Wasserstrahlrichtung drehenden Körper (2) mit dem Was­ serstrahl (8) tangential bis sekantial schneidet.3. The method according to claims 1 and 2, characterized in that one turns against the water jet ( 8 ) or in the water jet direction body ( 2 ) with the water jet ( 8 ) tangentially to secantially. 4. Verfahren nach den Ansprüchen 1 oder 3, dadurch gekennzeichnet, daß man den Körper (2) bis zu einer sehr dünnen Rest­ wanddicke (10) des Körpers (2) mit einem Wasserstrahl (8) schneidet und zur endgültigen Trennung des Körpers (2) Scher- oder Biegekräfte einsetzt.4. The method according to claims 1 or 3, characterized in that the body ( 2 ) to a very thin residual wall thickness ( 10 ) of the body ( 2 ) with a water jet ( 8 ) and for the final separation of the body ( 2nd ) Uses shear or bending forces.
DE4221666A 1992-07-02 1992-07-02 Method for opening bodies contg. explosive material - uses compressed water jet with integrated mineral and/or metal grinding particles Expired - Fee Related DE4221666C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4221666A DE4221666C1 (en) 1992-07-02 1992-07-02 Method for opening bodies contg. explosive material - uses compressed water jet with integrated mineral and/or metal grinding particles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4221666A DE4221666C1 (en) 1992-07-02 1992-07-02 Method for opening bodies contg. explosive material - uses compressed water jet with integrated mineral and/or metal grinding particles

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DE4221666C1 true DE4221666C1 (en) 1994-01-27

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4440208A1 (en) * 1994-11-10 1996-05-15 Alba Ind & Umweltschutzservice Method and device for cutting a body from solid explosives, in particular composite rocket fuels
WO1999003640A1 (en) * 1997-07-18 1999-01-28 The Secretary Of State For Defence Two-phase abrasive cutting device
WO2001062455A1 (en) * 2000-02-25 2001-08-30 Disarmco Limited Apparatus for cutting holes in munitions
DE102004034784A1 (en) * 2004-07-09 2006-02-02 INDUSTRIEPARK Spreewerk Lübben GmbH Removal of explosive material from component, comprises rotating component about its axis, removing strip of sleeve, applying pressure and melting or pressing out explosive
FR2894660A1 (en) * 2005-12-08 2007-06-15 Giat Ind Sa Explosive munitions decommissioning procedure includes separation of body from safety and arming component by water jet or laser cutting
US7328643B2 (en) * 2003-05-23 2008-02-12 Gradient Technology Process for accessing munitions using fluid jet technology
DE102008041973A1 (en) * 2008-09-10 2010-03-11 Grv Luthe Kampfmittelbeseitigung Gmbh Method and apparatus for the decommissioning of ammunition with combustible content and for the recovery of ammunition shell material
DE102011003072B3 (en) * 2011-01-24 2012-05-24 Spreewerk Lübben GmbH Method for disassembling of explosive containing bodies, involves opening explosive containing body in safe or de-energized state, where explosive containing body contains one or multiple explosive containing individual bodies
EP2431704A3 (en) * 2010-09-20 2012-07-04 Kjellberg-Stiftung Method for opening, defusing and/or burning out bombs or munitions containing explosives and application of said method
EP2610576A1 (en) * 2011-12-30 2013-07-03 Kjellberg-Stiftung Method for opening and defusing of bombs or munitions containing explosives and a use
WO2014054008A1 (en) 2012-10-02 2014-04-10 Calordomus Limited Disposal of munitions

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2400069A1 (en) * 1977-08-12 1979-03-09 Voest Ag Cleaning steel surface by removing ferrite material - by rinsing with dil. nitric acid, blasting with corundum particles and rinsing with dil. nitric acid
DE3913479C1 (en) * 1989-04-24 1990-08-23 Dr. Ing. Koehler Gmbh Ingenieurbuero, 3150 Peine, De Disarming toxic and/or explosive objects - involves dismantling based on investigation on measuring after transport in plastics jacket
DE4010757C1 (en) * 1990-04-04 1991-08-01 Rheinmetall Gmbh, 4000 Duesseldorf, De

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2400069A1 (en) * 1977-08-12 1979-03-09 Voest Ag Cleaning steel surface by removing ferrite material - by rinsing with dil. nitric acid, blasting with corundum particles and rinsing with dil. nitric acid
DE3913479C1 (en) * 1989-04-24 1990-08-23 Dr. Ing. Koehler Gmbh Ingenieurbuero, 3150 Peine, De Disarming toxic and/or explosive objects - involves dismantling based on investigation on measuring after transport in plastics jacket
DE4010757C1 (en) * 1990-04-04 1991-08-01 Rheinmetall Gmbh, 4000 Duesseldorf, De

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP 1-195294 (nach Patents abstracts of Japan, C-650, v. 07.11.89, Vol. 13, Nr. 491) *

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996014961A1 (en) * 1994-11-10 1996-05-23 Alba Industries Gmbh Process and device for chopping a body of solid explosives, especially composite rocket fuels
DE4440208A1 (en) * 1994-11-10 1996-05-15 Alba Ind & Umweltschutzservice Method and device for cutting a body from solid explosives, in particular composite rocket fuels
WO1999003640A1 (en) * 1997-07-18 1999-01-28 The Secretary Of State For Defence Two-phase abrasive cutting device
WO2001062455A1 (en) * 2000-02-25 2001-08-30 Disarmco Limited Apparatus for cutting holes in munitions
GB2359775A (en) * 2000-02-25 2001-09-05 Disarmco Ltd Apparatus for cutting holes in munitions
GB2376907A (en) * 2000-02-25 2002-12-31 Disarmco Ltd Apparatus for cutting holes in munitions
GB2376907B (en) * 2000-02-25 2003-10-08 Disarmco Ltd Apparatus for cutting holes in munitions
US7328643B2 (en) * 2003-05-23 2008-02-12 Gradient Technology Process for accessing munitions using fluid jet technology
US7637194B2 (en) 2004-07-09 2009-12-29 Spreewerk Luebben Gmbh Method and device for dismantling explosives-containing bodies
DE102004034784A1 (en) * 2004-07-09 2006-02-02 INDUSTRIEPARK Spreewerk Lübben GmbH Removal of explosive material from component, comprises rotating component about its axis, removing strip of sleeve, applying pressure and melting or pressing out explosive
DE102004034784B4 (en) * 2004-07-09 2009-08-27 Spreewerk Lübben GmbH Process and device for the decommissioning of explosive-containing bodies
FR2894660A1 (en) * 2005-12-08 2007-06-15 Giat Ind Sa Explosive munitions decommissioning procedure includes separation of body from safety and arming component by water jet or laser cutting
DE102008041973A1 (en) * 2008-09-10 2010-03-11 Grv Luthe Kampfmittelbeseitigung Gmbh Method and apparatus for the decommissioning of ammunition with combustible content and for the recovery of ammunition shell material
EP2431704A3 (en) * 2010-09-20 2012-07-04 Kjellberg-Stiftung Method for opening, defusing and/or burning out bombs or munitions containing explosives and application of said method
DE102011003072B3 (en) * 2011-01-24 2012-05-24 Spreewerk Lübben GmbH Method for disassembling of explosive containing bodies, involves opening explosive containing body in safe or de-energized state, where explosive containing body contains one or multiple explosive containing individual bodies
US9139486B2 (en) 2011-01-24 2015-09-22 Spreewerk Luebben Gmbh Method and device for decommissioning bodies containing explosive material
EP2610576A1 (en) * 2011-12-30 2013-07-03 Kjellberg-Stiftung Method for opening and defusing of bombs or munitions containing explosives and a use
WO2014054008A1 (en) 2012-10-02 2014-04-10 Calordomus Limited Disposal of munitions
US9285197B2 (en) 2012-10-02 2016-03-15 Disarmco Holdings Limited Disposal of munitions

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