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WO1990009279A1 - Double chamber cartridge for consolidating rock or coal - Google Patents

Double chamber cartridge for consolidating rock or coal Download PDF

Info

Publication number
WO1990009279A1
WO1990009279A1 PCT/EP1990/000196 EP9000196W WO9009279A1 WO 1990009279 A1 WO1990009279 A1 WO 1990009279A1 EP 9000196 W EP9000196 W EP 9000196W WO 9009279 A1 WO9009279 A1 WO 9009279A1
Authority
WO
WIPO (PCT)
Prior art keywords
cartridge
foil
chamber
coal
composite film
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.)
Ceased
Application number
PCT/EP1990/000196
Other languages
German (de)
French (fr)
Inventor
Hans Mehesch
Wolgang Cornely
Martin Fischer
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.)
Bergwerksverband GmbH
Original Assignee
Bergwerksverband 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 Bergwerksverband GmbH filed Critical Bergwerksverband GmbH
Publication of WO1990009279A1 publication Critical patent/WO1990009279A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/001—Improving soil or rock, e.g. by freezing; Injections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/14—Non-metallic plugs or sleeves; Use of liquid, loose solid or kneadable material therefor
    • F16B13/141—Fixing plugs in holes by the use of settable material
    • F16B13/143—Fixing plugs in holes by the use of settable material using frangible cartridges or capsules containing the setting components

Definitions

  • Two-chamber cartridge for solidifying rock or coal
  • the invention relates to a two-chamber cartridge according to the generic concept of claim 1.
  • Such two-chamber cartridges are known from DE-PS 23 45 913, in which the partition between the chambers made of a water vapor-tight material, for. B. consists of a polyvinylidene chloride film or a composite film. Polyamide coated polyethylene is proposed as the film material for the composite film. The use of a water vapor-tight composite film reduces the water vapor diffusion and thus prevents the curing of the isocyanate. The storability of two-chamber cartridges is thus improved. In DE-PS 23 45 913 it is stated that such a cartridge was still completely unchanged after 3 months. However, if the cartridge is stored for even longer, signs of solidification appear after 6 months.
  • the invention has for its object to achieve an even better Lagerf ability of the two-chamber cartridge.
  • water-glass solutions and polyisocyanates according to EP-PS 00 16 262 can also advantageously be used in the two-chamber cartridges according to the invention. Two-chamber cartridges with these substances can also be stored almost indefinitely if the inner cartridge is equipped with such composite films.
  • the single figure shows a longitudinal section of a two-chamber cartridge 1, which consists of two film tubes 2 and 3, which have different diameters and are inserted into one another, so that they form two chambers 4 and 5 which are separated from one another.
  • the two film tubes 2 and 3 can be closed together at their ends by a clip 6.
  • Example 1 comparative example
  • a two-chamber cartridge with a length of 300 mm consists of an outer cartridge with a diameter of 43 mm and an inner cartridge with a diameter of 32 mm.
  • Diphenylmethane diisocyanate is located in the inner cartridge.
  • the polyol component is located in the outer cartridge.
  • the walls of the outer film consist of polyamide film with a wall thickness of 40 to 45 ⁇ .
  • the inner cartridge consists of a polyamide / polyethylene composite film with a total thickness of 100 ⁇ m. The two-chamber cartridge was stored. After 6 months, signs of hardening appeared.
  • the wall of the inner cartridge consists of an aluminum composite film laminated with polyethylene film and polyester film.
  • the two-chamber cartridge showed no signs of hardening after a storage period of 2 years.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Soil Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Laminated Bodies (AREA)

Abstract

A double chamber cartridge for consolidating rock or coal by introducing polyurethane components is disclosed. In a larger diameter polyol-containing cartridge (2) is arranged a second, smaller diameter cartridge (3) made of a vapour-tight composite foil, in which a diphenylmethanediisocyanate is located. The second cartridge is designed as an aluminium and plastic composite foil soldered to form a tube. The composite foil is composed of an aluminium foil lined with a polyethylene foil and a polyester foil or it can be composed of an aluminium foil lined on both sides with PVC.

Description

Zweikammerpatrone , zur Verfestigung von Gestein oder Kohle Two-chamber cartridge, for solidifying rock or coal

Die Erfindung betrifft eine Zweikammerpatrone gemäß d-em Ober¬ begriff des Anspruches 1.The invention relates to a two-chamber cartridge according to the generic concept of claim 1.

Solche Zweikammerpatronen sind aus der DE-PS 23 45 913 bekannt, bei der die Trennwand zwischen den Kammern aus einem wasser¬ dampfdichten Material, z. B. aus einer Polyvinylidenchlαrid- folie oder einer Verbundfolie besteht. Als Folienmaterial für die Verbundfolie wird mit Polyamid beschichtetes Polyethylen vorgeschlagen. Durch die Verwendung einer wasserdampf-dichten Verbundfolie wird die Wasserdampfdiffusion verringert und so¬ mit die Aushärtung des Isocyanats verhindert. Die Lagerfähig¬ keit von Zweikammerpatronen wird somit verbessert. In der DE- PS 23 45 913 wird ausgeführt, daß eine derartige Patrone nach 3 Monaten noch völlig unverändert war. Wird die Patrone je¬ doch noch länger gelagert, so zeigen sich nach 6 Monaten Ver¬ festigungserscheinungen.Such two-chamber cartridges are known from DE-PS 23 45 913, in which the partition between the chambers made of a water vapor-tight material, for. B. consists of a polyvinylidene chloride film or a composite film. Polyamide coated polyethylene is proposed as the film material for the composite film. The use of a water vapor-tight composite film reduces the water vapor diffusion and thus prevents the curing of the isocyanate. The storability of two-chamber cartridges is thus improved. In DE-PS 23 45 913 it is stated that such a cartridge was still completely unchanged after 3 months. However, if the cartridge is stored for even longer, signs of solidification appear after 6 months.

Der Erfindung liegt die Aufgabe zugrunde, eine noch bessere Lagerf higkeit der Zweikammerpatrone zu erreichen.The invention has for its object to achieve an even better Lagerf ability of the two-chamber cartridge.

Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruches 1 gelöst.This object is achieved by the characterizing features of claim 1.

Weiterbildungen sind in den Unteransprüchen aufgeführt. Durch die Verwendung einer Verbundfolie aus Aluminium und Kunststoff wird die Lagerfähigkeit von Zweikammerpatronen deutlich verbessert, da die erfiπdungsgemäße Verbundfolie eine wesentlich verringerte Wasserdampfdurchlässigkeit auf¬ weist. Lagerversuche haben ergeben, daß nach bisher zwei Jahren keine Aushärtung innerhalb der Kammern erfolgt. Da die erfindungsgemäßen Zweikammerpatronen somit praktisch unbegrenzt lagerfähig sind, kann eine Anlage zur Herstel¬ lung derartiger Patronen kontinuierlich durcharbeiten. Ver¬ ringert sich die Nachfrage, lassen sich die Patronen lagern, ohne daß Härtungsreaktionen zu befürchten sind, die zu vor¬ zeitiger Verfestigung der Zweikammerfüllung führen.Further training is listed in the subclaims. The use of a composite film made of aluminum and plastic significantly improves the shelf life of two-chamber cartridges, since the composite film according to the invention has a substantially reduced water vapor permeability. Storage tests have shown that after two years there has been no curing within the chambers. Since the two-chamber cartridges according to the invention can thus be stored practically indefinitely, a system for producing cartridges of this type can be operated continuously. If the demand is reduced, the cartridges can be stored without fear of hardening reactions which lead to premature solidification of the two-chamber filling.

Neben den in der DE-PS 23 45 913 beschriebenen Polyurethan- Systemen können in den erfindungsgemäßen Zweikammerpatro¬ nen auch vorteilhaft Wasserglas-Lösungen und Polyisocyana- te gemäß der EP-PS 00 16 262 verwendet werden. Zweikammer¬ patronen mit diesen Substanzen sind ebenfalls nahezu unbe¬ grenzt lagerfähig, wenn die innere Patrone mit solchen Ver¬ bundfolien ausgerüstet ist.In addition to the polyurethane systems described in DE-PS 23 45 913, water-glass solutions and polyisocyanates according to EP-PS 00 16 262 can also advantageously be used in the two-chamber cartridges according to the invention. Two-chamber cartridges with these substances can also be stored almost indefinitely if the inner cartridge is equipped with such composite films.

Die Erfindung wird nachfolgend anhand der Zeichnung beschrie¬ ben.The invention is described below with reference to the drawing.

Die einzige Figur zeigt einen Längsschnitt einer Zweikam¬ merpatrone 1, die aus zwei Folienschläuchen 2 und 3 besteht, die unterschiedliche Durchmesser haben und ineinandergesteckt sind, so daß sie zwei gegeneinander abgetrennte Kammern 4 und 5 bilden. Die beiden Folienschläuche 2 und 3 können an ihren Enden gemeinsam durch einen Clip 6 verschlossen sein. Beispiel 1 (Vergleichsbeispiel)The single figure shows a longitudinal section of a two-chamber cartridge 1, which consists of two film tubes 2 and 3, which have different diameters and are inserted into one another, so that they form two chambers 4 and 5 which are separated from one another. The two film tubes 2 and 3 can be closed together at their ends by a clip 6. Example 1 (comparative example)

Eine Zweikammerpatrone mit einer Länge von 300 mm besteht aus einer Außenpatrone mit einem Durchmesser von 43 mm und einer Innenpatrone mit einem Durchmesser von 32 mm. In der Innenpa¬ trone befindet sich Diphenylmethandiisocyanat. In der Außen¬ patrone befindet sich die Polyolkomponente. Die Wände der Au¬ ßenfolie bestehen aus Polyamidfolie mit einer Wandstärke von 40 bis 45 μ . Die Iπnenpatrone besteht aus einer Polyamid-/ Polyethylen-Verbundfolie mit einer Gesamtstärke von 100 μm. Die Zweikammerpatrone wurde gelagert. Nach 6 Monaten zeigten sich Verfestigungserscheinungen.A two-chamber cartridge with a length of 300 mm consists of an outer cartridge with a diameter of 43 mm and an inner cartridge with a diameter of 32 mm. Diphenylmethane diisocyanate is located in the inner cartridge. The polyol component is located in the outer cartridge. The walls of the outer film consist of polyamide film with a wall thickness of 40 to 45 μ. The inner cartridge consists of a polyamide / polyethylene composite film with a total thickness of 100 μm. The two-chamber cartridge was stored. After 6 months, signs of hardening appeared.

Beispiel 2Example 2

Bei einer Zweikammerpatrone, wie in Beispiel 1, besteht die Wand der Innenpatrone aus einer mit Polyethylenfolie und Poly¬ esterfolie kaschierten Aluminiumverbundfolie. Die Zweikammer¬ patrone zeigte nach einer Lagerzeit von bisher 2 Jahren noch keine Verfestigungserscheinungen. In the case of a two-chamber cartridge, as in Example 1, the wall of the inner cartridge consists of an aluminum composite film laminated with polyethylene film and polyester film. The two-chamber cartridge showed no signs of hardening after a storage period of 2 years.

Claims

Ans p rüche : Expectations : 1. Zweikammerpatrone zur Verfestigung von Gestein oder Koh¬ le durch Einbringung von Polyurethan-Komponenten, wobei in einer Patrone mit größerem Durchmesser, die ein Poly- ol enthält, eine zweite Patrone aus einer wasserdampfdich¬ ten Verbundfolie mit kleinerem Durchmesser angeordnet ist, in der sich ein Diphenylmethandiisocyanat befindet, da¬ durch gekennzeichnet, daß die zweite Patrone als eine zum Schlauch geschweißte Verbundfolie aus Aluminium und Kunst¬ stoff ausgebildet ist.1. Two-chamber cartridge for solidifying rock or coal by introducing polyurethane components, a second cartridge made of a water vapor-tight composite film with a smaller diameter being arranged in a cartridge with a larger diameter and containing a polyol there is a diphenylmethane diisocyanate, characterized in that the second cartridge is designed as a composite film made of aluminum and plastic welded to form a tube. 2. Zweikammerpatrone nach Anspruch 1, dadurch gekennzeichnet, daß die Verbundfolie der zweiten Patrone aus einer mit ei¬ ner Polyethylenfolie und einer Polyesterfolie kaschierten Aluminiumfolie besteht.2. Two-chamber cartridge according to claim 1, characterized in that the composite film of the second cartridge consists of an aluminum foil laminated with a polyethylene film and a polyester film. 3. Zweikammerpatrone nach Anspruch 1, dadurch gekennzeichnet, daß die Verbundfolie aus einer beidseitig mit PVC kaschier¬ ten Aluminiumfolie besteht. 3. Two-chamber cartridge according to claim 1, characterized in that the composite film consists of an aluminum foil laminated with PVC on both sides.
PCT/EP1990/000196 1989-02-14 1990-02-07 Double chamber cartridge for consolidating rock or coal Ceased WO1990009279A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEG8901649.1U 1989-02-14
DE8901649U DE8901649U1 (en) 1989-02-14 1989-02-14 Two-chamber cartridge for solidifying rock or coal

Publications (1)

Publication Number Publication Date
WO1990009279A1 true WO1990009279A1 (en) 1990-08-23

Family

ID=6835975

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1990/000196 Ceased WO1990009279A1 (en) 1989-02-14 1990-02-07 Double chamber cartridge for consolidating rock or coal

Country Status (3)

Country Link
AU (1) AU5022290A (en)
DE (1) DE8901649U1 (en)
WO (1) WO1990009279A1 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2065472A1 (en) * 1970-03-04 1973-11-15 Bergwerksverband Gmbh Two-component storing cartridge - for polyurethane foam reaction mixture
DE2345913A1 (en) * 1973-09-12 1975-04-03 Bergwerksverband Gmbh TWO-CHAMBER CARTRIDGE FOR SOLIDIZING ROCK OR COAL
DE2757370A1 (en) * 1977-12-22 1979-07-05 Bayer Ag GAS-TIGHT PLASTIC-ALUMINUM COMPOSITE FILMS
US4239105A (en) * 1979-08-02 1980-12-16 General Electric Company Resin capsule for mining roof bolting systems
EP0016262B1 (en) * 1979-03-06 1983-04-13 Bergwerksverband GmbH Process for consolidating and sealing geological and heaped rock and earth formations
EP0117509A2 (en) * 1983-02-23 1984-09-05 Intermedicat GmbH Holder for liquid prescribed diets
US4514446A (en) * 1978-08-07 1985-04-30 Toray Silicone Company, Ltd. Water impermeable package for room temperature-moisture curing one-part sealants
DE8708307U1 (en) * 1987-06-12 1987-08-13 Hoechst Ag, 6230 Frankfurt Gas and aroma-tight composite film

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2065472A1 (en) * 1970-03-04 1973-11-15 Bergwerksverband Gmbh Two-component storing cartridge - for polyurethane foam reaction mixture
DE2345913A1 (en) * 1973-09-12 1975-04-03 Bergwerksverband Gmbh TWO-CHAMBER CARTRIDGE FOR SOLIDIZING ROCK OR COAL
DE2757370A1 (en) * 1977-12-22 1979-07-05 Bayer Ag GAS-TIGHT PLASTIC-ALUMINUM COMPOSITE FILMS
US4514446A (en) * 1978-08-07 1985-04-30 Toray Silicone Company, Ltd. Water impermeable package for room temperature-moisture curing one-part sealants
EP0016262B1 (en) * 1979-03-06 1983-04-13 Bergwerksverband GmbH Process for consolidating and sealing geological and heaped rock and earth formations
US4239105A (en) * 1979-08-02 1980-12-16 General Electric Company Resin capsule for mining roof bolting systems
EP0117509A2 (en) * 1983-02-23 1984-09-05 Intermedicat GmbH Holder for liquid prescribed diets
DE8708307U1 (en) * 1987-06-12 1987-08-13 Hoechst Ag, 6230 Frankfurt Gas and aroma-tight composite film

Also Published As

Publication number Publication date
DE8901649U1 (en) 1989-04-06
AU5022290A (en) 1990-09-05

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