WO1996001361A1 - Procede et dispositif de taille et d'excavation en nappe de materiaux solides - Google Patents

Procede et dispositif de taille et d'excavation en nappe de materiaux solides Download PDF

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Publication number
WO1996001361A1
WO1996001361A1 PCT/DE1995/000843 DE9500843W WO9601361A1 WO 1996001361 A1 WO1996001361 A1 WO 1996001361A1 DE 9500843 W DE9500843 W DE 9500843W WO 9601361 A1 WO9601361 A1 WO 9601361A1
Authority
WO
WIPO (PCT)
Prior art keywords
explosive
fluid jet
explosives
jet
cutting
Prior art date
Application number
PCT/DE1995/000843
Other languages
German (de)
English (en)
Inventor
Claus Becker
Bernhard Schwark-Werwach
Jürgen UEHLIN
Original Assignee
Bisam Bremer Institut Für Schneid- Und Abtrag-Methoden Gmbh I. Gr.
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 Bisam Bremer Institut Für Schneid- Und Abtrag-Methoden Gmbh I. Gr. filed Critical Bisam Bremer Institut Für Schneid- Und Abtrag-Methoden Gmbh I. Gr.
Priority to EP95924158A priority Critical patent/EP0717811A1/fr
Priority to AU28791/95A priority patent/AU2879195A/en
Publication of WO1996001361A1 publication Critical patent/WO1996001361A1/fr

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
    • E21C37/12—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole by injecting into the borehole a liquid, either initially at high pressure or subsequently subjected to high pressure, e.g. by pulses, by explosive cartridges acting on the liquid
    • 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
    • E21C37/16—Other methods or devices for dislodging with or without loading by fire-setting or by similar methods based on a heat effect

Definitions

  • the boreholes are made mechanically, then the explosive is brought into the drill pipe, and then, if necessary, together with other ignitions in neighboring boreholes, a certain rock is loosened, which is then still to be shredded
  • the water should pulsate at high pressure from several nozzles and thereby erode the rock. According to the literature, this decay is initially only suitable for rock of medium hardness. However, it is considered advantageous that the stone destruction does not touch the stone stone and extraction tool.
  • Dismantling work on or on metallic and mineral structures such as tanks, ships or reinforced concrete structures is also carried out using chemical, electro-thermal and gas-thermal processes such as high-temperature cutting torches.
  • the cutting or material removal rate is achieved here by successive thermal or chemical destruction of the structure of the solids.
  • the disadvantage here is that the methods can only be used very selectively and that the cutting or removal performance depends on the properties of the materials to be processed.
  • the invention is based on the object of developing a method and a device which is advantageous for this, with which, on the one hand, there is no direct contact between the material processing device and the material to be removed or processed, that is to say any preparatory mechanical processing of the material to be removed is avoided, and on the other hand the internal structures of the materials to be processed have no influence on the process of material removal.
  • the solution to the problem is seen in the fact that, with the aid of a continuously flowing fluid jet, an explosive is brought directly and continuously to the point of action and the explosive is also only continuously detonated there.
  • the fluid jet can flow continuously, but also discontinuously, such as pulsating, in order to also use the energy of the pulse. Consequently, the known process of mechanical, thermal or chemical removal by means of cutting propulsion tools is avoided and, according to the invention, is now transferred to one or more fluid jets which are loaded with explosives.
  • the fluid jet transports the explosives to the location of the material removal without the introduction of boreholes or the like, where they are ignited when they hit the target material.
  • the fluid jet loaded with explosives which preferably consists of water, together with the explosives exploding at the point of impact causes the material to be removed.
  • the beam cross-section is between 0.05 square millimeters to over ten square centimeters and the beam speed is between a few meters per second and over several thousand meters per second.
  • the Introducing the explosive advantageously during the fluid jet acceleration in the area of the cross-sectional center of the jet.
  • the distance between the location of the fluid jet release and the point of impact is, for example, in the range from a few centimeters to several meters, preferably one to three meters.
  • the explosives or their components which, for example as a disperse, colloidal or binary or higher system, are not in themselves explosive, can be put into an ignitable state when they leave the jet-forming system.
  • ferromagnetic components which can also be abrasive substances and are stored in a defined manner in the explosive components, cause the explosive components to mix by means of an internal or external electromagnetic field or to remove the separation state in the binary or higher-level explosive component system.
  • the ignition-capable state is produced, for example, optically, with the aid of laser beams, by means of electromagnetic high-frequency fields or by means of an electromagnetic direct field with a magnetic induction of preferably 0.5 Tesla to 3.5 Tesla. '
  • Electromagnetically for example with laser radiation, it is possible to move the explosive components when they leave the beam-shaping system into the ignitable state and to ignite the explosives in the work area, which also makes it possible to control the ignition process.
  • the explosives, their components and their encapsulation can be constituted in such a way that they dissolve in the fluid jet medium some time after contacting it. They preferably dissolve within ten seconds up to twenty seconds after contacting them. This ensures that the explosives contained in the fluid jet pose no danger in the event of a misfire. •
  • the explosives are chemically designed so that they, preferably dissolved in water and washed away, do not pose any harmful environmental impact.
  • a pressure conditioner By means of a pressure conditioner, water is brought to high pressure and fed to the accelerator and mixing nozzle via a line 1. In the first stage of the nozzle 2, the fluid jet is accelerated to high speed. A mixing chamber 3 is arranged behind this nozzle. In this chamber 4 additives in solid, liquid and gaseous form or mixed forms thereof can be fed to the fluid jet via the feed.
  • a further nozzle 5 is arranged, which can also be larger in diameter than the first one.
  • the additives are carried along by the jet, accelerated and deposited in the cross-sectional center of the jet. From a fluidic point of view, the jet can be divided into an enveloping jet 6 and a core jet 7.
  • an electromagnetic coil 8 concentrically wrapped around the nozzle segment 5, by means of which the beam can be influenced in a targeted manner with pulsed electrical current, depending on its additives.
  • the explosives stored in the fluid jet are converted into an ignitable state by means of electromagnetic interference. This means, for example, that the explosive components are made sharp or ignitable.
  • the explosion protection safety of the system is ensured by making the explosives ignitable when leaving the jet-burning system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Disintegrating Or Milling (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Abstract

Un procédé de taille faisant appel à un jet d'explosifs est utilisé de préférence pour déblayer des substances solides. A cet effet, l'explosif est amené par un jet continu de fluide au point d'utilisation, où il est mis à feu, et le dégagement d'énergie qui en résulte excave le matériau.
PCT/DE1995/000843 1994-07-05 1995-07-04 Procede et dispositif de taille et d'excavation en nappe de materiaux solides WO1996001361A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP95924158A EP0717811A1 (fr) 1994-07-05 1995-07-04 Procede et dispositif de taille et d'excavation en nappe de materiaux solides
AU28791/95A AU2879195A (en) 1994-07-05 1995-07-04 Process and device for cutting and large surface excavating solid materials

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19944423477 DE4423477C2 (de) 1994-07-05 1994-07-05 Verfahren und Vorrichtung zum kontinuierlichen Abtragen von festen Materialien mit Hilfe von Fluid-Strahlen
DEP4423477.5 1994-07-05

Publications (1)

Publication Number Publication Date
WO1996001361A1 true WO1996001361A1 (fr) 1996-01-18

Family

ID=6522260

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1995/000843 WO1996001361A1 (fr) 1994-07-05 1995-07-04 Procede et dispositif de taille et d'excavation en nappe de materiaux solides

Country Status (4)

Country Link
EP (1) EP0717811A1 (fr)
AU (1) AU2879195A (fr)
DE (1) DE4423477C2 (fr)
WO (1) WO1996001361A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19600450C2 (de) * 1996-01-09 1998-04-16 Claus Dr Becker Vorrichtung zum kontinuierlichen Abtragen von festen Materialien mit Hilfe von Fluidstrahlen
DE19917946A1 (de) * 1999-04-21 2000-10-26 Claus Becker Verfahren zum Durchführen des Zündens von Explosivstoffen beim Fluid-Strahlschneiden
CN107553351B (zh) * 2017-10-09 2019-04-09 安徽理工大学 一种反式新型前混合电磁磨料射流发生装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3548957A (en) * 1968-06-26 1970-12-22 Miron Abramovich Schegolevsky Blasting apparatus
US3575244A (en) * 1968-06-19 1971-04-20 Miron Abramovich Schegolevsky Head for liquid explosives
US3725633A (en) * 1971-01-08 1973-04-03 Westinghouse Electric Corp Corpuscular beam in the atmosphere
US3791697A (en) * 1971-05-12 1974-02-12 Z Hokao Method and apparatus for flame jet cutting
US3796463A (en) * 1970-10-20 1974-03-12 Environment One Corp Process and apparatus for mining by hydroelectric pulsed liquid jets
BE881713A (fr) * 1980-02-13 1980-05-30 Ledent Pierre Procede et appareillage pour le forage d'un trou rectiligne dans une veine de houille recoupee par un sondage

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3575244A (en) * 1968-06-19 1971-04-20 Miron Abramovich Schegolevsky Head for liquid explosives
US3548957A (en) * 1968-06-26 1970-12-22 Miron Abramovich Schegolevsky Blasting apparatus
US3796463A (en) * 1970-10-20 1974-03-12 Environment One Corp Process and apparatus for mining by hydroelectric pulsed liquid jets
US3725633A (en) * 1971-01-08 1973-04-03 Westinghouse Electric Corp Corpuscular beam in the atmosphere
US3791697A (en) * 1971-05-12 1974-02-12 Z Hokao Method and apparatus for flame jet cutting
BE881713A (fr) * 1980-02-13 1980-05-30 Ledent Pierre Procede et appareillage pour le forage d'un trou rectiligne dans une veine de houille recoupee par un sondage

Also Published As

Publication number Publication date
AU2879195A (en) 1996-01-25
EP0717811A1 (fr) 1996-06-26
DE4423477C2 (de) 1997-12-11
DE4423477A1 (de) 1996-01-11

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