WO1997044545A1 - Method and device for insulating building parts and installations - Google Patents

Method and device for insulating building parts and installations Download PDF

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Publication number
WO1997044545A1
WO1997044545A1 PCT/EP1997/002562 EP9702562W WO9744545A1 WO 1997044545 A1 WO1997044545 A1 WO 1997044545A1 EP 9702562 W EP9702562 W EP 9702562W WO 9744545 A1 WO9744545 A1 WO 9744545A1
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WIPO (PCT)
Prior art keywords
pressure
hose
pressure vessel
shut
thermal insulation
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Application number
PCT/EP1997/002562
Other languages
German (de)
French (fr)
Inventor
Wilhelm Reisacher
Original Assignee
Wilhelm Reisacher
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 Wilhelm Reisacher filed Critical Wilhelm Reisacher
Priority to EP97924959A priority Critical patent/EP0900307B1/en
Priority to DE59702608T priority patent/DE59702608D1/en
Priority to AT97924959T priority patent/ATE197485T1/en
Publication of WO1997044545A1 publication Critical patent/WO1997044545A1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00—Implements for finishing work on buildings
    • E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
    • E04F21/06—Implements for applying plaster, insulating material, or the like
    • E04F21/08—Mechanical implements
    • E04F21/12—Mechanical implements acting by gas pressure, e.g. steam pressure
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/7604—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only fillings for cavity walls

Definitions

  • the invention relates to a method for isolating building parts and building internals having cavities against warm and cold, in which a debris-capable, inorganic, highly porous thermal insulation material is pneumatically demanded in a hose and blown into the cavities by means of excess pressure, thereby compressing and solidifying
  • DE-A-4438627 teaches the use of an insulating material which consists of a mixture of ex-dilated pearlite and an aqueous solution of alkali silicates. In contrast to the generic method, this mixture is produced at the factory. It is disadvantageous that the mixture can only be kept for a limited time. Solidifying the mixture requires a mechanical compression process
  • DE-A-3534706 describes a packaging material using expanded pearlite or vermiculite, which is bonded to a shaped body by means of an inorganic or organic binder.
  • a shaped body by means of an inorganic or organic binder.
  • the molded body should be able to absorb shocks elastically or plastically.
  • DE-A-4439428 suggests the introduction of thermal dam material into cavities e.g. Roof cavities of buildings in front, whereby inorganic fillers and solids are forced into the cavities by means of compressed air.
  • the required mass, which contains perlite, should be earth-moist.
  • the thermal insulation material is also introduced here continuously. However, it is not said how the sealing between the inlet funnel and the delivery line is to be carried out Has.
  • the US-A-2,200,713 shows a method for introducing granular or fibrous Isoliermate ⁇ al in cavities of buildings using a narrowing pipe at the outlet end of a hose line.
  • the constriction is intended to increase the pressure, but this is physically questionable because of a cross-sectional constriction of the Although the outlet nozzle has an increased speed, it is hardly possible to increase the pressure.
  • the insulating debris is continuously fed into the delivery line as in the prior art mentioned at the outset, so that the same disadvantages are present.
  • the object of the invention is to propose a method of the type mentioned, which can be carried out with a simpler and easily transportable device and which allows the use of a higher delivery pressure in order to ensure pneumatic consolidation when the material is introduced into the cavities
  • This object is achieved in a method of the generic type in that diatomaceous earth, perlite, magnesium silicate or vermiculite or mixtures are used as the thermal insulation material is used therefrom, an amount of the dry thermal insulation material is mixed in a mixing chamber with a recipe-related amount of an aqueous inorganic binder to form a sticky dry matter, this mixture is transferred to a pressure-free closed container to which the delivery hose is connected, opposite the container the mixing chamber and the delivery hose is shut off and placed under high pressure in the range of 2 to 10 bar, after which the shut-off of the delivery hose is opened and the batch is blown into the cavity under this high pressure, with a cohesive, completely filling the respective cavity after curing , stable insulating molded body is formed.
  • the method according to the invention works discontinuously in that the bulk heat insulating material is introduced into a pressure-free container, which is then shut off by means of a simple shut-off device, after which the delivery pressure is built up in the container by means of a compressor.
  • the delivery pressure can be selected to be significantly higher than with a continuous process, whereby two advantages are achieved simultaneously.
  • considerably more bulk material can be conveyed per unit of time, which compensates for the disadvantage inherent in a discontinuous process that the actual insulation process is interrupted during the loading of the container, and therefore time is lost.
  • the second advantage concerns the way in which the sticky mass is introduced into the cavities and this advantage is decisive for the result of the work.
  • the mass can be injected into the cavities in any direction, including upwards, and when the mass particles injected at high speed strike, there is an intimate connection with the existing surface.
  • the high delivery pressure also allows the particles to be shot into narrow and even angled channels, so that "dead corners" are also reached.
  • silica sol 40% by weight are mixed with a mixture of 40% by weight of perlite, particle size 2 mm and 20% by weight of vermiculite, particle size 1 mm.
  • This thermal insulation compound is particularly suitable for refractory linings.
  • the bulk density of vermiculite is higher than that of perlite and the surface structures are different, which leads to a higher binding capacity.
  • Example 4 A mixture of 30% by weight perlite, particle size 1 mm and 30% by weight magnesium silicate is mixed with 40% by weight loam water. The result is a particularly cost-effective thermal insulation material that can be used without any problems for normal insulation purposes.
  • FIG. 1 shows a schematic view of a device suitable for carrying out the insulation process
  • FIG. 3 shows a cross section in the roof area of a building with a representation of the rafters spaces to be filled with insulating material
  • FIG. 5 shows the cross section of a double-skin drywall, which according to the invention is provided with a heat-sound insulation, and
  • FIG. 6 shows the cross section of a chimney with a drawn-in stainless steel pipe, the annular space outside this pipe receiving the thermal insulation filling.
  • a pressure vessel 10 is connected via a lock 12 to a loading hopper 14 above it.
  • the funnel has a suspension frame 16 for a big bag 18, shown in broken lines, which contains a pearlite filling.
  • the lock 12 and the funnel 14 form a structural unit which can be detached from the pressure container 10, so that both parts can be transported separately.
  • a dosing screw 20 protrudes into the lock 12 and has a motor drive, which is not shown here.
  • a separate pressure vessel 22 there is an aqueous binder or a mixture of binders.
  • This vessel 22 is connected via a connecting line to injection nozzles 24 which open out circumferentially offset in the lock 12.
  • injection nozzles 24 lie in a plane below the metering screw 20, but it goes without saying that, in the practical embodiment, the injection nozzles 24 open out in the area of the metering screw 20 and here preferably also at axial intervals.
  • the connection of the lock 12 to the pressure vessel 10 can be closed in a pressure-tight manner by means of a shut-off element 26.
  • a compressed air line 28 opens into the pressure container 10 and is supplied by a compressor 30 in order to be able to build up pressure in the pressure container 10.
  • a pressure line 32 connects to the pressure vessel 10, which is designed as a flexible pressure hose of approximately 50 mm in diameter and should have a sufficient length to be able to reach the roof of a building with the outlet end when the device is parked on the ground.
  • a shut-off valve 34 At the outlet end of the delivery line 32 there is a shut-off valve 34 to which a flexible or articulated lance 36 with a narrowing outlet nozzle 38 is connected.
  • the lance has a length of at least 2 m and can be inserted, for example, through a hole 40 in a ceiling cladding of a roof into the space between the rafters, the lance 36 being bent so that the nozzle 38 can be adjusted parallel to the direction of the rafters.
  • the operation starts by driving the metering screw 20, so that pearlite beads with a predetermined amount per unit of time pass from the hopper 14 through the lock 12 into the pressure vessel 10.
  • binder is injected into the material stream through the nozzles 24 and thereby equally distributed.
  • the vessel 22 is connected to the running compressor 30, so that there is a supply pressure in the vessel which supplies the binder to the dam material.
  • the granular material entering the pressure vessel 10 has a sticky surface.
  • the screw 20 After filling the pressure vessel 10, the screw 20 is stopped at the same time, the outlet valve (not shown) for the binder in the vessel 22 and the butterfly valve 26 of the pressure vessel 10 are closed, and the compressor 30 from the vessel 22 the pressure vessel 10 is switched over, so that pressure builds up in the pressure vessel 10 As soon as the operating pressure is reached, the compressor 30 switches off under pressure control and by opening the shut-off valve 34 at the end of the delivery line 32 the sticky dry matter can be injected. Due to the narrowing nozzle 38, a material seal enters the lance and the sprayed-out material further compresses the material already present when it strikes, the density being increased by at least 10% to 35% depending on the desired properties of the insulating body to be produced.
  • the hole 40 can be located, for example, on the middle roof height, so that the insulating compound is first injected to the eaves side and the lower cavity is filled, after which the nozzle 38 is directed towards the ridge in order to fill this space downwards. In this way, one cavity after the other is isolated.
  • the compacted dam mass tries to relax and expands, so that the mass penetrates even into the smallest free corners and no air cavities remain.
  • the injected mass solidifies into a dimensionally stable dam body with a high thermal insulation value
  • Shaped body is sufficiently load-bearing so that the previously cut out plate can be reinserted into hole 40 and glued to the shaped body so that the assembly point only needs to be filled
  • the method according to the invention can also be used - at least in some areas - to produce very thin-walled insulating bodies which, for example, have a small wall thickness of only a few centimeters in the annular space between a cylindrical stainless steel tube and a square chimney shaft Provide an access opening 40 on each floor to ensure that an uninterrupted insulating body is created which extends over the entire height of the chimney

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Building Environments (AREA)
  • Macromonomer-Based Addition Polymer (AREA)
  • Thermal Insulation (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

A metering screw (20) meters dry granular perlite material from above into a pressure container (10) which can be connected to a compressor (30). At the same time, the perlite material is mixed with an inorganic aqueous binder from a supply vessel (22). The resultant adhesive dry compound is pressurized in the pressure container (10) and fed via a feed line (32) to a cavity in a building. A flexible lance at the end of the feed line (32) injects the insulating compound into the cavity and simultaneously compresses it. After hardening, a cohesive, dimensionally stable insulating body with a high heat-insulating factor is produced.

Description

Verfahren und Vorrichtung zum Isolieren von Gebäudeteilen und Einbauten Method and device for isolating parts of buildings and internals
Die Erfindung betrifft ein Verfahren zum Isolieren von, Hohlräume aufweisenden Gebäudeteilen und Gebaudeeinbauten gegen Warme und Kalte, bei dem ein schuttfahiger, anorganischer, hochporoser Wärmedämmstoff in einem Schlauch pneumatisch gefordert und mittels Überdruck in die Hohlräume eingeblasen und dabei komprimiert und verfestigt wirdThe invention relates to a method for isolating building parts and building internals having cavities against warm and cold, in which a debris-capable, inorganic, highly porous thermal insulation material is pneumatically demanded in a hose and blown into the cavities by means of excess pressure, thereby compressing and solidifying
Ein derartiges Verfahren ist aus der EP-A- 0665342 bekannt Nach diesem bekannten Verfahren wird das Warmedammschuttgut kontinuierlich in die Forderleitung eingebracht Dazu ist eine Schleuse, z B in Form eines Zellenrades erforderlich, die eines mechanischen Antriebes bedarf um das Material in die unter Forderdruck stehende Forderleitung einzuspeisen Die Schleuse erfordert ihrerseits Abdichtungsmaßnahmen, um in der Forderleitung den notigen Forderdruck aufrecht zu erhalten Gleichwohl ist nach diesem Prinzip der Forderdruck begrenztSuch a method is known from EP-A-0665342. According to this known method, the thermal dam bulk material is continuously introduced into the delivery line. A lock, for example in the form of a cellular wheel, is required, which requires a mechanical drive to move the material into the line under pressure Feeding in the feed line The lock in turn requires sealing measures in order to maintain the required feed pressure in the feed line. Nevertheless, the feed pressure is limited according to this principle
Die DE-A- 4438627 lehrt die Verwendung eines Isoliermateπals das aus einer Mischung aus exDandiertem Perlit und einer wäßrigen Losung von Alkali-Silikaten besteht. Im Unterschied zum gattungsgemaßen Verfahren wird diese Mischung werkseitig erzeugt Nachteilig ist, daß die Mischung nur eine begrenzte Zeit haltbar ist Das Verfestigen der Mischung erfordert einen mechanischen VerdichtungsvorgangDE-A-4438627 teaches the use of an insulating material which consists of a mixture of ex-dilated pearlite and an aqueous solution of alkali silicates. In contrast to the generic method, this mixture is produced at the factory. It is disadvantageous that the mixture can only be kept for a limited time. Solidifying the mixture requires a mechanical compression process
Die DE-A-3534706 beschreibt ein Verpackungsmaterial unter Verwendung von expandiertem Perlit oder Vermiculit, das mittels eines anorganischen oder organischen Bindemittels zu einem Formkorper verklebt wird Auch ist hier der Zusatz von Zellulose angesprochen Der Formkorper soll Stoße elastisch oder plastisch auffangen können. Hinsichtlich eines Verfahrens zum Einbringen von Wärmedämmstoff in Hohlräume ist diesem Dokument nichts weiter zu entnehmenDE-A-3534706 describes a packaging material using expanded pearlite or vermiculite, which is bonded to a shaped body by means of an inorganic or organic binder. Here too is the addition of cellulose addressed The molded body should be able to absorb shocks elastically or plastically. Nothing further can be found in this document with regard to a method for introducing thermal insulation material into cavities
Die DE-A- 4439428 schlagt das Einbringen von Warmedamm-Mateπal in Hohlräume z.B. Dachhohlraume von Gebäuden vor, wobei anorganische Füll- und Feststoffe mittels Druckluft in die Hohlräume gefordert werden Die geforderte Masse, die Perlite enthalt soll erdfeucht sein Das Einbringen des Warmedammschuttgutes erfolgt auch hier kontinuierlich Allerdings ist nicht gesagt, wie die Abdichtung zwischen Eingabetrichter und Forderleitung zu erfolgen hat.DE-A-4439428 suggests the introduction of thermal dam material into cavities e.g. Roof cavities of buildings in front, whereby inorganic fillers and solids are forced into the cavities by means of compressed air. The required mass, which contains perlite, should be earth-moist. The thermal insulation material is also introduced here continuously. However, it is not said how the sealing between the inlet funnel and the delivery line is to be carried out Has.
Die US-A-2,200,713 zeigt ein Verfahren zum Einbringen von kornigem oder fasrigem Isoliermateπal in Hohlräume von Gebäuden unter Verwendung eines sich verengenden Rohres am Auslaßende einer Schlauchleitung Durch die Verengung soll eine Druckerhohung erreicht werden, was aber physikalisch zweifelhaft ist, da durch eine Querschnittsverengung der Auslaßduse zwar eine erhöhte Geschwindigkeit aber kaum eine Druckerhohung erzielbar ist Auch hier erfolgt die Eingabe des Isolierschuttgutes kontinuierlich in die Forderleitung wie beim eingangs genannten Stand der Technik, sodaß dieselben Nachteile vorhanden sind.The US-A-2,200,713 shows a method for introducing granular or fibrous Isoliermateπal in cavities of buildings using a narrowing pipe at the outlet end of a hose line. The constriction is intended to increase the pressure, but this is physically questionable because of a cross-sectional constriction of the Although the outlet nozzle has an increased speed, it is hardly possible to increase the pressure. Here, too, the insulating debris is continuously fed into the delivery line as in the prior art mentioned at the outset, so that the same disadvantages are present.
Aufgabe der Erfindung ist es, ein Verfahren der eingangs genannten Art vorzuschlagen, das mit einer einfacheren und leicht transportierbaren Vorrichtung durchführbar ist und das den Einsatz eines höheren Forderdruckes erlaubt, um beim Einbringen des Materials in die Hohlräume eine pneumatische Verfestigung zu gewährleistenThe object of the invention is to propose a method of the type mentioned, which can be carried out with a simpler and easily transportable device and which allows the use of a higher delivery pressure in order to ensure pneumatic consolidation when the material is introduced into the cavities
Diese Aufgabe wird bei einem Verfahren der gattungsgemaßen Art dadurch gelost, daß als Wärmedämmstoff Kieselgur, Perlit, Magnesium-Silikat oder Vermiculit oder Mischungen daraus verwendet wird bzw. werden, eine Menge des trockenen Wärmedämmstoffes in einer Mischkammer mit einer rezeptbezogenen Menge eines wäßrigen anorganischen Bindemittels zu einer klebrigen Trockenmasse vermischt wird, diese Mischung in einen druckfreien geschlossenen Behälter überführt wird, an den der Förderschlauch angeschlossen ist, der Behälter gegenüber der Mischkammer und dem Förderschlauch abgesperrt und unter Hochdruck im Bereich von 2 bis 10 bar gesetzt wird, wonach die Absperrung des Förderschlauches geöffnet und die Charge unter diesem Hochdruck in den Hohlraum eingeblasen wird, wobei nach dem Aushärten ein, den jeweiligen Hohlraum vollständig ausfüllender, zusammenhängender, stabiler Isolierformkörper gebildet wird.This object is achieved in a method of the generic type in that diatomaceous earth, perlite, magnesium silicate or vermiculite or mixtures are used as the thermal insulation material is used therefrom, an amount of the dry thermal insulation material is mixed in a mixing chamber with a recipe-related amount of an aqueous inorganic binder to form a sticky dry matter, this mixture is transferred to a pressure-free closed container to which the delivery hose is connected, opposite the container the mixing chamber and the delivery hose is shut off and placed under high pressure in the range of 2 to 10 bar, after which the shut-off of the delivery hose is opened and the batch is blown into the cavity under this high pressure, with a cohesive, completely filling the respective cavity after curing , stable insulating molded body is formed.
Das erfindungsgemäße Verfahren arbeitet diskontinuierlich, indem das Wärmeisolier¬ schüttgut in einen drucklosen Behälter eingebracht wird, der dann mittels eines einfachen Absperrorgans abgesperrt wird, wonach mittels eines Kompressors der Förderdruck im Behälter aufgebaut wird. Bei diesem Verfahren kann der Förderdruck wesentlich höher gewählt werden, als bei einem kontinuierlichen Prozeß, womit zwei Vorteile gleichzeitig erreicht werden. Einmal kann erheblich mehr Schüttgut pro Zeiteinheit gefördert werden, womit der Nachteil kompensiert wird, der einem diskontinuierlichen Verfahren prinzipiell anhaftet, daß während der Beladung des Behälters das eigentliche Isolierverfahren unterbrochen ist, somit also Zeit verloren geht. Der zweite Vorteil betrifft die Art des Einbringens der klebrigen Masse in die Hohlräume und dieser Vorteil ist für das Arbeitsergebnis entscheidend. Dank des hohen Förderdruckes kann die Masse in beliebigen Richtungen, also auch aufwärts in die Hohlräume eingespritzt werden und beim Auftreffen der mit hoher Geschwindigkeit eingeschossenen Masseteilchen findet eine innige Verbindung mit der vorhandenen Beaufschlagungsfiäche statt. Der hohe Förderdruck erlaubt weiterhin das Einschießen der Partikel in enge und sogar verwinkelte Kanäle, sodaß auch "tote Ecken" erreicht werden. Folgende Rezepturen der klebrigen Trockenmasse haben sich bewährt:The method according to the invention works discontinuously in that the bulk heat insulating material is introduced into a pressure-free container, which is then shut off by means of a simple shut-off device, after which the delivery pressure is built up in the container by means of a compressor. With this method, the delivery pressure can be selected to be significantly higher than with a continuous process, whereby two advantages are achieved simultaneously. On the one hand, considerably more bulk material can be conveyed per unit of time, which compensates for the disadvantage inherent in a discontinuous process that the actual insulation process is interrupted during the loading of the container, and therefore time is lost. The second advantage concerns the way in which the sticky mass is introduced into the cavities and this advantage is decisive for the result of the work. Thanks to the high delivery pressure, the mass can be injected into the cavities in any direction, including upwards, and when the mass particles injected at high speed strike, there is an intimate connection with the existing surface. The high delivery pressure also allows the particles to be shot into narrow and even angled channels, so that "dead corners" are also reached. The following recipes of the sticky dry matter have proven themselves:
Beispiel 1 :Example 1 :
60 Gew.% Perlite mit einer Korngröße von 2 mm werden mit 40 Gew.% wäßrigem Natriumwasserglas gut gemischt. Es ergibt sich eine Trockenmasse mit ausreichender Klebrigkeit, die sich für das Isolieren großvotumiger Hohlräume eignet, wie sie beispielsweise die Dachsparren-Zwischenräume von Hausdächern darstellen.60% by weight of perlite with a grain size of 2 mm are mixed well with 40% by weight of aqueous sodium water glass. The result is a dry mass with sufficient stickiness, which is suitable for isolating large-volume cavities, as represented, for example, by the rafters between the roofs of houses.
Beispiel 2:Example 2:
Auf eine Mischung von 25 Gew.% Perlite mit einer Korngröße 0 mm und 25 Gew.% Perlite mit einer Korngröße von 1 mm werden 50 Gew.% Caliumwassergias verteilt. Die Mischung ist etwas klebriger als diejenige des Beispiels 1 und auch feinkörniger und eignet sich daher zur Erzeugung von kleinvolumigen bzw. schmalen Isolier-Formkörpem, in Türen, Profilen und mit Edelstahlrohren sanierten Kaminschächten.50% by weight of potassium water glass are distributed over a mixture of 25% by weight of perlite with a grain size of 0 mm and 25% by weight of perlite with a particle size of 1 mm. The mixture is somewhat stickier than that of Example 1 and also fine-grained and is therefore suitable for producing small-volume or narrow insulating moldings, in doors, profiles and chimney ducts renovated with stainless steel pipes.
Beispiel 3:Example 3:
40 Gew.% Kieselsol werden mit einem Gemisch aus 40 Gew.% Perlite, Korngröße 2 mm und 20 Gew.% Vermiculit, Korngröße 1 mm vermischt. Diese Wärmedämm-Masse ist besonders für feuerfeste Auskleidungen geeignet. Die Schüttdichte von Vermiculit ist höher als diejenige von Perlite und die Oberflächenstrukturen sind unterschiedlich, was zu einem höheren Bindevermögen führt.40% by weight of silica sol are mixed with a mixture of 40% by weight of perlite, particle size 2 mm and 20% by weight of vermiculite, particle size 1 mm. This thermal insulation compound is particularly suitable for refractory linings. The bulk density of vermiculite is higher than that of perlite and the surface structures are different, which leads to a higher binding capacity.
Beispiel 4: Ein Gemisch aus 30 Gew.% Perlite, Korngröße 1 mm und 30 Gew.% Magnesium-Silikat wird mit 40 Gew.% Lehmwasser versetzt. Es entsteht hier ein besonders kostengünstiges Wärmedämm-Mateπal, das für normale Isolierzwecke ohne weiteres einsetzbar ist.Example 4: A mixture of 30% by weight perlite, particle size 1 mm and 30% by weight magnesium silicate is mixed with 40% by weight loam water. The result is a particularly cost-effective thermal insulation material that can be used without any problems for normal insulation purposes.
Anhand der Zeichnung, die ein Ausfuhrungsbeispiel der zur Durchführung des Verfahrens erforderlichen Anlage zeigt, wird die Erfindung näher beschrieben.The invention is described in more detail with the aid of the drawing, which shows an exemplary embodiment of the installation required to carry out the method.
Es zeigt:It shows:
FIG.1 eine schematische Ansicht einer zur Durchführung des Isolierverfahrens geeigneten Vorrichtung,1 shows a schematic view of a device suitable for carrying out the insulation process,
FIG.2 einen Querschnitt durch einen Teil der Vorrichtung längs der Linie A-B der Figur 1 ,2 shows a cross section through part of the device along the line A-B of Figure 1,
FIG.3 einen Querschnitt im Dachbereich eines Gebäudes mit Darstellung der mit Isoliermasse zu füllenden Dachsparren-Zwischenräume,3 shows a cross section in the roof area of a building with a representation of the rafters spaces to be filled with insulating material,
FIG.4 das Auslassende der Förderleitung mit Absperrventil und biegsamer Einbringlanze,4 shows the outlet end of the delivery line with shut-off valve and flexible insertion lance,
FIG.5 den Querschnitt einer zweischaligen Trockenbau-Wand, die erfindungsgemäß mit einer Wärme-Schall-lsolierung versehen wird, und5 shows the cross section of a double-skin drywall, which according to the invention is provided with a heat-sound insulation, and
FIG.6 den Querschnitt eines Kamins mit eingezogenem Edelstahlrohr, wobei der Ringraum außerhalb dieses Rohres die Warmedammfullung erhalt. Ein Druckbehälter 10 ist über eine Schleuse 12 mit einem darüber stehenden Beschickungstrichter 14 verbunden. Der Trichter weist ein Aufhängegestell 16 für einen strichpunktiert dargestellten big bag 18 auf, der eine Perlitfüllung enthält. Die Schleuse 12 und der Trichter 14 bilden eine Baueinheit, die vom Druckbehälter 10 lösbar ist, so daß beide Teile separat transportiert werden können. In die Schleuse 12 ragt eine Dosierschnecke 20 hinein, die einen motorischen Antrieb hat, der hier nicht dargestellt ist.6 shows the cross section of a chimney with a drawn-in stainless steel pipe, the annular space outside this pipe receiving the thermal insulation filling. A pressure vessel 10 is connected via a lock 12 to a loading hopper 14 above it. The funnel has a suspension frame 16 for a big bag 18, shown in broken lines, which contains a pearlite filling. The lock 12 and the funnel 14 form a structural unit which can be detached from the pressure container 10, so that both parts can be transported separately. A dosing screw 20 protrudes into the lock 12 and has a motor drive, which is not shown here.
In einem separaten Druckgefäß 22 befindet sich wäßriges Bindemittel oder eine Bindemittelmischung. Dieses Gefäß 22 ist über eine Verbindungsleitung mit Einspritzdüsen 24 verbunden, die in der Schleuse 12 umfangsversetzt münden. Aus zeichnerischen Gründen liegen diese Einspritzdüsen 24 in einer Ebene unterhalb der Dosierschnecke 20, jedoch versteht sich, daß in der praktischen Ausführung die Einspritzdüsen 24 im Bereich der Dosierschnecke 20 und hier vorzugsweise auch in axialen Abständen münden. Der Anschluß der Schleuse 12 an den Druckbehälter 10 ist mittels eines Absperrorgans 26 druckdicht verschließbar. In den Druckbehälter 10 mündet eine Druckluftleitung 28, die von einem Kompressor 30 versorgt wird, um im Druckbehälter 10 einen Druck aufbauen zu können. Bodenseitig schließt sich an den Druckbehälter 10 eine Förderleitung 32 an, die als biegsamer Druckschlauch von etwa 50 mm Durchmesser ausgeführt ist und eine ausreichende Lange haben sollte, um bei auf dem Erdboden abgestellter, Vorrichtung mit dem Auslassende das Dach eines Gebäudes erreichen zu können. Am Auslassende der Förderleitung 32 befindet sich ein Absperrventil 34, an die sich eine biegsame oder gelenkige Lanze 36 mit sich verengender Auslaßdüse 38 anschließt. Die Lanze hat eine Länge von mindestens 2 m und läßt sich z.B. durch ein Loch 40 in einer Deckenverkleidung eines Daches hindurch in den Sparrenzwischenraum einfahren, wobei die Lanze 36 gebogen wird, so daß die Düse 38 parallel zur Sparrenrichtung eingestellt werden kann. Der Betrieb startet durch Antrieb der Dosierschnecke 20, so daß aus dem Trichter 14 Perlitkornchen mit einer vorgegebenen Menge pro Zeiteinheit durch die Schleuse 12 in den Druckbehalter 10 gelangen Wahrend des Durchganges durch die Dosierschnecke 20 wird Bindemittel durch die Düsen 24 in den Matenalstrom eingespritzt und dabei gleichmäßig verteilt. Zu diesem Zweck ist das Gefäß 22 mit dem laufenden Kompressor 30 verbunden, so daß in dem Gefäß ein Forderdruck herrscht, der das Bindemittel dem Damm-Material zufuhrt. Das in den Druckbehälter 10 gelangende kornige Material hat eine klebrige Oberflache Nach Füllung des Druckbehalters 10 werden gleichzeitig die Schnecke 20 gestoppt, das nicht dargestellte Auslaßventil für das Bindemittel im Gefäß 22 und die Absperrklappe 26 des Druckbehalters 10 geschlossen und der Kompressor 30 vom Gefäß 22 auf den Druckbehalter 10 umgeschaltet, so daß |etzt ein Druckaufbau im Druckbehalter 10 erfolgt Sobald der Betriebsdruck erreicht ist, schaltet der Kompressor 30 - pressostatisch gesteuert - ab und durch Offnen des Absperrventils 34 am Ende der Forderleitung 32 kann die klebrige Trockenmasse eingespritzt werden. Durch die sich verengende Düse 38 tritt in der Lanze eine Mateπaiverdichtung ein und das ausgespritzte Material verdichtet beim Auftreffen das schon vorhandene Material weiterhin, wobei das Raumgewicht um mindestens 10% bis zu 35% \e nach den gewünschten Eigenschaften des herzustellenden Isolierkörpers erhöht wird. Durch Verandern der Richtung der Auslaßduse 38 können auch unzugängliche Ecken von Hohlräumen erreicht werden. Das Loch 40 kann sich beispielsweise auf mittlerer Dachhohe befinden, so daß zuerst die Isoliermasse zur Traufenseite hin eingespritzt und der untere Hohlraum gefüllt wird, wonach die Düse 38 zum First hin gerichtet wird, um diesen Raum abwärts wachsend zu füllen. Auf diese Weise wird ein Hohlraum nach dem anderen isoliert Wahrend der Aushärtung sucht sich die verdichtete Damm-Masse zu entspannen und expandiert dabei, so daß die Masse auch in die kleinsten freigebliebenen Ecken eindringt und keine Lufthohlraume verbleiben. Nach einer Aushartezeit von 3-5 Stunden ist die eingespritzte Masse zu einem formstabilen Dammkorper mit hohem Warmedammwert erstarrt Dieser Formkorper ist genügend tragfahig, so daß die vorher ausgeschnittene Platte wieder in das Loch 40 eingefugt und am Formkorper angeklebt werden kann, so daß die Montagestelle nur noch verspachtelt zu werden brauchtIn a separate pressure vessel 22 there is an aqueous binder or a mixture of binders. This vessel 22 is connected via a connecting line to injection nozzles 24 which open out circumferentially offset in the lock 12. For reasons of drawing, these injection nozzles 24 lie in a plane below the metering screw 20, but it goes without saying that, in the practical embodiment, the injection nozzles 24 open out in the area of the metering screw 20 and here preferably also at axial intervals. The connection of the lock 12 to the pressure vessel 10 can be closed in a pressure-tight manner by means of a shut-off element 26. A compressed air line 28 opens into the pressure container 10 and is supplied by a compressor 30 in order to be able to build up pressure in the pressure container 10. At the bottom, a pressure line 32 connects to the pressure vessel 10, which is designed as a flexible pressure hose of approximately 50 mm in diameter and should have a sufficient length to be able to reach the roof of a building with the outlet end when the device is parked on the ground. At the outlet end of the delivery line 32 there is a shut-off valve 34 to which a flexible or articulated lance 36 with a narrowing outlet nozzle 38 is connected. The lance has a length of at least 2 m and can be inserted, for example, through a hole 40 in a ceiling cladding of a roof into the space between the rafters, the lance 36 being bent so that the nozzle 38 can be adjusted parallel to the direction of the rafters. The operation starts by driving the metering screw 20, so that pearlite beads with a predetermined amount per unit of time pass from the hopper 14 through the lock 12 into the pressure vessel 10. During the passage through the metering screw 20, binder is injected into the material stream through the nozzles 24 and thereby equally distributed. For this purpose, the vessel 22 is connected to the running compressor 30, so that there is a supply pressure in the vessel which supplies the binder to the dam material. The granular material entering the pressure vessel 10 has a sticky surface. After filling the pressure vessel 10, the screw 20 is stopped at the same time, the outlet valve (not shown) for the binder in the vessel 22 and the butterfly valve 26 of the pressure vessel 10 are closed, and the compressor 30 from the vessel 22 the pressure vessel 10 is switched over, so that pressure builds up in the pressure vessel 10 As soon as the operating pressure is reached, the compressor 30 switches off under pressure control and by opening the shut-off valve 34 at the end of the delivery line 32 the sticky dry matter can be injected. Due to the narrowing nozzle 38, a material seal enters the lance and the sprayed-out material further compresses the material already present when it strikes, the density being increased by at least 10% to 35% depending on the desired properties of the insulating body to be produced. By changing the direction of the outlet nozzle 38, inaccessible corners of cavities can also be achieved. The hole 40 can be located, for example, on the middle roof height, so that the insulating compound is first injected to the eaves side and the lower cavity is filled, after which the nozzle 38 is directed towards the ridge in order to fill this space downwards. In this way, one cavity after the other is isolated. During the hardening process, the compacted dam mass tries to relax and expands, so that the mass penetrates even into the smallest free corners and no air cavities remain. After a curing time of 3-5 hours, the injected mass solidifies into a dimensionally stable dam body with a high thermal insulation value Shaped body is sufficiently load-bearing so that the previously cut out plate can be reinserted into hole 40 and glued to the shaped body so that the assembly point only needs to be filled
Beim Füllen der Kammern einer Trockenbau-Zimmerwand wird ebenfalls lediglich ein vergleichsweise kleines Loch 40 in einer der Wandplatten benotigt und es ist ohne weiteres möglich, das Loch 40 zur Bequemlichkeit etwa auf halber Raumhohe vorzusehen, da die Isoliermasse in jeder beliebigen Richtung eingebracht werden kannWhen filling the chambers of a drywall room wall, only a comparatively small hole 40 is also required in one of the wall panels and it is easily possible to provide the hole 40 for convenience at about half the height of the room, since the insulating material can be introduced in any direction
Wie FIG 6 veranschaulicht können mit dem erfindungsgemaßen Verfahren auch - wenigstens bereichsweise - recht dünnwandige Isoiierformkorper in Hohlräumen erzeugt werden, die z B im Ringraum zwischen einem zylindrischen Edelstahlrohr und einem quadratischen Kaminschacht eine Kleinstwandstarke von nur wenigen Zentimetern aufweisen Bei höheren Kaminen empfiehlt es sich, in jedem Geschoß eine Zugangsoffnung 40 vorzusehen, um sicherzustellen, daß ein über die ganze Kaminhohe reichender ununterbrochener Isolierkörper entsteht As illustrated in FIG. 6, the method according to the invention can also be used - at least in some areas - to produce very thin-walled insulating bodies which, for example, have a small wall thickness of only a few centimeters in the annular space between a cylindrical stainless steel tube and a square chimney shaft Provide an access opening 40 on each floor to ensure that an uninterrupted insulating body is created which extends over the entire height of the chimney

Claims

PATENTANSPRÜCHE PATENT CLAIMS
1. Verfahren zum Isolieren von, Hohlräume aufweisenden Gebäudeteilen und Gebaudeeinbauten gegen Wärme und Kalte, bei dem ein schuttfahiger, anorganischer, hochporoser Wärmedämmstoff in einem Schlauch pneumatisch gefordert und mittels Überdruck in die Hohlräume eingeblasen und dabei komπmiert und verfestigt wird, dadurch gekennzeichnet, daß als Wärmedämmstoff Kieselgur, Perlit, Magnesium-Silikat oder Vermiculit oder Mischungen daraus verwendet wird bzw. werden, eine Menge des trockenen Wärmedämmstoffes in einer Mischkammer mit einer rezeptbezogenen Menge eines wassπgen anorganischen Bindemittels zu einer klebrigen Trockenmasse vermischt wird, diese Mischung in einen druckfreien geschlossenen Behalter überfuhrt wird an den der Forderschlauch angeschlossen ist, der Behalter gegenüber der Mischkammer und dem Forderschlauch abgesperrt und unter Hochdruck im Bereich von 2 bis 10 bar gesetzt wird, wonach die Absperrung des Forderschlauches geöffnet und die Charge unter diesem Hochdruck in den1. A method for isolating, hollow parts of buildings and building fixtures against heat and cold, in which a debris-capable, inorganic, highly porous thermal insulation material in a hose is pneumatically demanded and blown into the cavities by means of excess pressure and thereby compressed and solidified, characterized in that as Thermal insulation kieselguhr, perlite, magnesium silicate or vermiculite or mixtures thereof is or are used, an amount of the dry thermal insulation material is mixed in a mixing chamber with a recipe-related amount of a water-based inorganic binder to form a sticky dry matter, this mixture is transferred to a pressure-free closed container to which the Ford hose is connected, the container opposite the mixing chamber and the Ford hose is shut off and placed under high pressure in the range of 2 to 10 bar, after which the shut-off of the Ford hose is opened and the batch under it High pressure in the
Hohlraum eingeblasen wird, wobei nach dem Ausharten ein, den jeweiligen Hohlraum vollständig ausfüllender, zusammenhängender, stabiler Isoiierformkorper gebildet wird.Cavity is blown in, wherein after curing, a continuous, stable, insulating molded body is formed which completely fills the respective cavity.
2. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, daß durch das Hochdruckeinblasen das Raumgewicht der klebrigen Trockenmasse in einem Bereich von 10%-40% erhöht wird. 2. The method according to claim 1, characterized in that the density of the sticky dry matter is increased by the high pressure blowing in a range of 10% -40%.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß dem Bindemittel vor dem Vermischen mit dem Wärmedammstoff lehmhaltiges Trockenmaterial oder Lehmwasser zugesetzt wird.3. The method according to claim 1 or 2, characterized in that loam-containing dry material or loam water is added to the binder before mixing with the heat insulation.
4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß als Bindemittel Kieselsole, flüssiges Wasserglas, Phosphatbinder, Tone und/oder4. The method according to any one of claims 1 to 3, characterized in that as a binder silica sols, liquid water glass, phosphate binder, clays and / or
Zemente eingesetzt werden.Cements are used.
5. Nach dem Verfahren gemäß einem der Ansprüche 1 bis 4 hergestellte kiebrige Trockenmasse, dadurch gekennzeichnet, daß diese vor dem Aushärten im Bereich von 40 Gew.% - 70 Gew.% pulveriges und/oder körniges Wärmedämm-Material, insbesondere Perlit enthält.5. According to the method according to any one of claims 1 to 4, granular dry mass, characterized in that it contains powdery and / or granular thermal insulation material, in particular pearlite, before curing in the range from 40% by weight.
6. Vorrichtung zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß oberhalb eines Druckbehälters (10) ein Einfülltrichter (14) angeordnet und mit dem Druckbehälter (10) durch eine Schleuse (12) verbunden ist, in die eine motorisch antreibbare Dosierschnecke hineinragt oder in dieser angeordnet ist und in die, im Bereich der Dosierschnecke (20) umfangsverteilte6. Device for carrying out the method according to one of claims 1 to 5, characterized in that a filling funnel (14) is arranged above a pressure vessel (10) and is connected to the pressure vessel (10) by a lock (12) into which one Motor-driven metering screw protrudes or is arranged in this and into the circumferentially distributed in the area of the metering screw (20)
Einspritzdüsen (24) münden und daß sich zwischen Schleuse (12) und Druckbehälter (10) ein druckdichtes Absperrorgan (26) befindet und daß weiterhin im Druckbehälter (10) eine, an einen Kompressor (30) angeschlossene Druckluftleitung (28) mündet und an dem Druckbehälter (10) bodenseitig der Förderschlauch (32) angeschlossen ist.Injection nozzles (24) open and that between the lock (12) and pressure vessel (10) there is a pressure-tight shut-off device (26) and that furthermore, in the pressure vessel (10), a compressed air line (28) connected to a compressor (30) opens and at which Pressure vessel (10) on the bottom of the delivery hose (32) is connected.
7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß am Auslassende des Förderschlauches (32) ein Absperrventil (34) sowie eine an dieses angeschlossene Einbringlanze (36) mit sich verengender Auslaßdüse (38) vorgesehen ist. Vorrichtung nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß die Einbringlanze (36) über den größten Teil ihrer Länge biegsam ausgebildet ist oder Biegegelenke aufweist. 7. The device according to claim 6, characterized in that a shut-off valve (34) and a connected to this insertion lance (36) with a narrowing outlet nozzle (38) is provided at the outlet end of the delivery hose (32). Device according to claim 6 or 7, characterized in that the insertion lance (36) is flexible over most of its length or has bending joints.
PCT/EP1997/002562 1996-05-22 1997-05-20 Method and device for insulating building parts and installations WO1997044545A1 (en)

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EP97924959A EP0900307B1 (en) 1996-05-22 1997-05-20 Method and device for insulating building parts and installations
DE59702608T DE59702608D1 (en) 1996-05-22 1997-05-20 METHOD AND DEVICE FOR INSULATING BUILDING PARTS AND INSTALLATIONS
AT97924959T ATE197485T1 (en) 1996-05-22 1997-05-20 METHOD AND DEVICE FOR INSULATING BUILDING PARTS AND INSTALLATIONS

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DE19620600A DE19620600C2 (en) 1996-05-22 1996-05-22 Device and method for introducing thermal insulation material into cavities
DE19620600.6 1996-05-22

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DE19620600C2 (en) 2000-05-11
DE19620600A1 (en) 1997-11-27
EP0900307B1 (en) 2000-11-08
ATE197485T1 (en) 2000-11-11
DE59702608D1 (en) 2000-12-14

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