EP0875484B1 - Method and device for removing air from the head space above a liquid in filled containers - Google Patents

Method and device for removing air from the head space above a liquid in filled containers Download PDF

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Publication number
EP0875484B1
EP0875484B1 EP98107051A EP98107051A EP0875484B1 EP 0875484 B1 EP0875484 B1 EP 0875484B1 EP 98107051 A EP98107051 A EP 98107051A EP 98107051 A EP98107051 A EP 98107051A EP 0875484 B1 EP0875484 B1 EP 0875484B1
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EP
European Patent Office
Prior art keywords
liquid
container
inert
gas jet
inert gas
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Expired - Lifetime
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EP98107051A
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German (de)
French (fr)
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EP0875484A1 (en
Inventor
Uwe Dr. Dipl.-Ing. Grupa
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Linde Gas AG
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Linde Technische Gase GmbH
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B67OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67CCLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
    • B67C3/00Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
    • B67C3/02Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
    • B67C3/22Details
    • B67C3/222Head-space air removing devices, e.g. by inducing foam

Definitions

  • the invention relates to a method for filling containers with a liquid, where the liquid is poured into the container and then the container is closed, after filling the liquid and before closing of the container at least one jet of inert gas onto the surface of the liquid is directed that the inert gas jet penetrates the liquid and the liquid brings to frothing, causing the above the liquid surface in the container existing ambient air is displaced, and a device for performing of the procedure.
  • High pressure water jet injection is usually used. This is done after filling the bottles and before closing the bottles Water is injected into the bottles under high pressure, causing rapid foaming the carbonized liquid is effected. The one in the headspace of the bottles existing air is displaced from the bottles by the foaming liquid.
  • this method only works with carbonized liquids.
  • US-A-2 372 457 describes a method of filling containers with a Liquid, the liquid being poured into the container and then the Container is closed, being after filling the liquid and before Seal the container with an inert gas jet on the surface of the liquid is directed that the inert gas jet penetrates the liquid and the liquid brings to frothing, causing the above the liquid surface in the container ambient air is displaced.
  • the present invention has for its object a method of the beginning mentioned type and to design a device for carrying out the method, that the greatest possible distance from gaseous oxygen is reached from the headspace of the container.
  • this object is achieved in that the inert gas jet is enveloped by an inert gas such that the friction of the inert gas jet is reduced with the ambient air.
  • nitrogen is the inert gas or provided carbon dioxide. It is also conceivable e.g. the use of Noble gases.
  • the inert gas jet is preferably made of gaseous nitrogen and / or gaseous carbon dioxide formed. In addition or as an alternative to the gaseous one
  • the inert gas jet can also liquid and nitrogen and / or gaseous carbon dioxide Have nitrogen and / or liquid carbon dioxide.
  • the inert gas jet is adjusted so that the liquid exactly up to the top of the container foams. In this way, an overexposure the liquid and related cleaning work can be avoided.
  • inert gas jets are closely bundled, so that due to the intensity of the bundled beam even with larger containers and liquid surfaces a foaming of the liquid up to the edge of the container and thus displacing the oxygen in the container head space is effected.
  • the intensity of Inert gas jet can be precisely controlled with the method according to the invention controlled foaming of the liquid in the container, so that a Safe displacement of the oxygen from the container is effected without the disadvantages having to put up with overflowing of the container.
  • the invention further relates to a device for filling containers with a Liquid with a container filling device and a container closing device and a conveyor for transporting the containers from the container filling device to the container closing device, wherein between the container filling device and the container closing device a device for generating at least an inert gas jet is provided, which is designed such that the inert gas jet can be aligned to the liquid surface in the container and is adjustable so that it is in the liquid penetrates and causes the liquid to foam, causing the Ambient air above the liquid surface in the container is displaced becomes.
  • the device for Generation of the inert gas jet has a double tube consisting of an inner tube and there is an outer tube surrounding the inner tube, the inner tube with an inert gas under high pressure can be acted upon, while the External tube can be acted upon with an inert gas under low pressure.
  • the device for generating the inert gas jet is preferably adjustable in such a way that that the inert gas jet the liquid exactly up to the top of the container Foaming brings.
  • the outer tube is preferably arranged concentrically with the inner tube. Both that The inner tube and the outer tube are in an inert gas supply device Connection, however, the inner tube with a high pressure, e.g. 1.5 bar to 10 bar, inert gas and the outer tube with a low pressure, e.g. 1.1 bar to 3 bar, standing inert gas can be charged.
  • a high pressure e.g. 1.5 bar to 10 bar
  • inert gas and the outer tube with a low pressure e.g. 1.1 bar to 3 bar
  • standing inert gas can be charged.
  • Active beam preferably with a cross section of about 0.3 to about 1 mm, the penetrates into the liquid in the container and causes it to foam.
  • the outer tube fulfills the function of a cladding tube, which is from Inert gas flowing out of the outer tube the active jet emerging from the inner tube envelops and thus reduces the friction of the active beam with the ambient air, thereby prevents the active beam from tearing open after it emerges from the inner tube becomes.
  • the invention is suitable for filling all conceivable liquids into containers, whereby liquids in the sense of the present invention mean all media are that can be made to foam.
  • the invention for filling liquid foods, e.g. Beer, in cans or bottles intended.
  • the application of the invention is not only carbonized Limited liquids.
  • the oxygen content in the closed containers can be obtained on the liquid can be reduced to below 0.1 mg oxygen per liter. Thereby oxidation processes in the liquids can be reliably prevented, so that the quality and shelf life of liquids, especially liquid foods is increased.
  • the invention is used with particular advantage in beer bottling. Especially with Beer is the requirement to get a hygienically perfect and durable product, particularly high. Because the addition of preservatives to beer is special is frowned upon (German Purity Law), the shelf life of the beer must other way. With the present invention, a Possibility created in an economical way without the addition of preservatives the shelf life of beverages significantly increase and at the same time the to significantly improve hygienic conditions during the filling process.
  • the present exemplary embodiment relates to a beverage filling device for Filling beer into cans.
  • a facility for bottling beer would be constructed similarly.
  • the beverage cans 1 are filled with beer 3 in a can filling machine 2.
  • the filled beverage cans 1 are then on a transport path 4 in the direction of travel 5 transported to a can sealing machine 6.
  • On the way from the Can filling machine 2 for can closing machine 6 are those filled with beer Beverage cans 1 from a beam generating device 7 with a bundled one Inert gas jet 8 is applied.
  • the beam generating device 7 is located in the Figure not shown inert gas supply device, e.g. a liquid nitrogen tank, in connection.
  • the beam generating device 7 has a double tube 9 which consists of an inner tube 10 and an outer tube 11.
  • In the inner tube 10 is a tightly bundled inert gas jet with a diameter of about 0.5 mm, the is under high pressure of approx.
  • This tightly focused inert gas jet serves as Active jet that enters the liquid contained in the container 1. From the outer tube 11 emerges an inert gas, which is under a low pressure of approx wrapped concentrically. This will reduce the friction of the active beam after leaving of the inner tube 10 is reduced with the ambient air, causing tearing of the active beam is prevented after exiting the inner tube 10.
  • the one in the Inert gas jet 8 which has penetrated liquid brings the liquid into the beverage can 1 for foaming, which displaces the air in the beverage can 1 becomes.
  • the inert gas jet 8 is set so that the liquid exactly up to the top Foam edge of the beverage can 1. After closing the beverage can 1 using the sealing machine 6 is in the beverage can 1 only the filled Beer and inert gas.

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  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Basic Packing Technique (AREA)
  • Vacuum Packaging (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

The method involve using an apparatus (7) for generating at least one jet of inert gas (8). The apparatus is positioned between the filler (2) and a container-closing appliance (6). The inert gas jet is directed onto the surface of the liquid in the container (1) and adjusted so that the gas-jet penetrates the liquid which is foamed exactly up to the top rim of the container. The ambient air above the surface of the liquid in the container is displaced. The apparatus producing the inert gas jet has a double pipe (9) which consists of an inner (10) pipe subjected to high pressure gas, and an outer (11) pipe exposed to low pressure inert gas.

Description

Die Erfindung betrifft ein Verfahren zum Befüllen von Behältern mit einer Flüssigkeit, bei dem die Flüssigkeit in den Behälter eingefüllt und anschließend der Behälter verschlossen wird, wobei nach dem Einfüllen der Flüssigkeit und vor dem Verschließen des Behälters mindestens ein Inertgasstrahl derart auf die Oberfläche der Flüssigkeit gerichtet wird, daß der Inertgasstrahl in die Flüssigkeit eindringt und die Flüssigkeit zum Aufschäumen bringt, wodurch die oberhalb der Flüssigkeitsoberfläche im Behälter befindliche Umgebungsluft verdrängt wird, sowie eine Vorrichtung zur Durchführung des Verfahrens.The invention relates to a method for filling containers with a liquid, where the liquid is poured into the container and then the container is closed, after filling the liquid and before closing of the container at least one jet of inert gas onto the surface of the liquid is directed that the inert gas jet penetrates the liquid and the liquid brings to frothing, causing the above the liquid surface in the container existing ambient air is displaced, and a device for performing of the procedure.

Beim Befüllen von Behältern mit sauerstoffempfindlichen Produkten, z.B. in der Lebensmittelindustrie, muß stets darauf geachtet werden, daß möglichst wenig Sauerstoff nach dem Verschließen des Behälters im Behälter verbleibt. Im Kopfraum des Behälters verbliebener Luftsauerstoff kann nämlich mit dem Produkt reagieren und somit z.B. zu Geschmacksabweichungen führen. Zudem besteht in Gegenwart von ausreichend Sauerstoff die Gefahr eines Verderbs durch aerobe Mikroorganismen.When filling containers with oxygen sensitive products, e.g. in the Food industry, it must always be ensured that as little as possible Oxygen remains in the container after the container has been closed. In the headspace atmospheric oxygen remaining in the container can react with the product and thus e.g. lead to variations in taste. In addition, in the presence of sufficient oxygen the risk of spoilage by aerobic microorganisms.

Beim Befüllen von Dosen mit Flüssigkeiten, z.B. bei der Befüllung von Bierdosen, wird üblicherweise die sog. Unterdeckelbegasung angewandt. Dabei wird während eines kurzen Zeitraums vor dem Verschließen der Dosen versucht, die Luft aus dem Kopfraum der Dosen durch Begasung mit einem Inertgas zu verdrängen. Da für diese Begasung nur ein kurzer Zeitraum vor dem Verschließen der Dosen zur Verfügung steht, ist es in der Regel nicht möglich, auf diese Weise den Sauerstoff vollständig aus dem Kopfraum der Dosen zu entfernen.When filling cans with liquids, e.g. when filling beer cans Usually the so-called bottom cover gassing is used. It is during a a short period of time before sealing the cans tried to get the air out of the headspace to displace the cans by gassing them with an inert gas. As for this Fumigation is available only a short period before the cans are sealed stands, it is usually not possible to completely remove the oxygen in this way to remove the headspace of the cans.

Man hat auch schon versucht, den Behälterkopfraum durch Einbringen von Flüssigstickstofftropfen zu inertisieren. Diese Flüssigstickstoffkleinmengendosierung hat jedoch den Nachteil, daß der verdampfende, flüssige Stickstoff die gesamte Oberfläche der im Behälter befindlichen Flüssigkeit nicht gleichmäßig bedeckt, wodurch erhebliche Luftreste im Kopfraum verbleiben können. Außerdem erfordert die Flüssigstickstoffkleinmengendosierung eine relativ aufwendige Installation. Darüber hinaus besteht die Gefahr des Vereisens der Stickstoffdüse. Attempts have also been made to drop the container headspace by introducing liquid nitrogen drops to inertize. This liquid nitrogen small dose has however, the disadvantage that the evaporating liquid nitrogen covers the entire surface the liquid in the container is not evenly covered, which causes considerable Air residues can remain in the headspace. Liquid nitrogen also requires small dosing a relatively complex installation. In addition, there is Risk of freezing of the nitrogen nozzle.

Beim Befüllen von Flaschen mit Flüssigkeiten, z.B. beim Befüllen von Bierflaschen, wird üblicherweise die sog. Hochdruck-Wasserstrahleinspritzung (HDE) angewandt. Dabei wird nach dem Befüllen der Flaschen und vor dem Verschließen der Flaschen Wasser unter hohem Druck in die Flaschen eingespritzt, wodurch ein schnelles Aufschäumen der carbonisierten Flüssigkeit bewirkt wird. Die im Kopfraum der Flaschen vorhandene Luft wird durch die aufschäumende Flüssigkeit aus den Flaschen verdrängt. Diese Methode funktioniert allerdings nur bei carbonisierten Flüssigkeiten. Außerdem kommt es meist nicht nur zu einem Aufschäumen, sondern auch zu einem Überschäumen der Flüssigkeit. Daher ist es notwendig, die abzufüllende Flüssigkeit überzudosieren. Aufgrund des Überschäumens müssen die Flaschen außerdem nach dem Verschließen gereinigt werden, wodurch zusätzliche Kosten verursacht werden. In der Regel ist es mit dieser Methode auch nicht möglich, den Sauerstoff vollständig aus dem Kopfraum der Flaschen zu entfernen, da mit dem eingespritzten Wasser auch kleine Sauerstoffmengen mit eingetragen werden können.When filling bottles with liquids, e.g. when filling beer bottles, High pressure water jet injection (HDE) is usually used. This is done after filling the bottles and before closing the bottles Water is injected into the bottles under high pressure, causing rapid foaming the carbonized liquid is effected. The one in the headspace of the bottles existing air is displaced from the bottles by the foaming liquid. However, this method only works with carbonized liquids. In addition, there is usually not only foaming, but also one Foaming the liquid. Therefore, it is necessary to fill the liquid overdose. Due to the foaming, the bottles also have to be refilled the closure can be cleaned, causing additional costs. In as a rule, it is also not possible with this method to completely remove the oxygen to remove the headspace of the bottles, as with the injected water too small amounts of oxygen can be entered.

Die US-A-2 372 457 beschreibt ein Verfahren zum Befüllen von Behältern mit einer Flüssigkeit, wobei die Flüssigkeit in den Behälter eingefüllt und anschließend der Behälter verschlossen wird, wobei nach dem Einfüllen der Flüssigkeit und vor dem Verschließen des Behälters ein Inertgasstrahl derart auf die Oberfläche der Flüssigkeit gerichtet wird, daß der Inertgasstrahl in die Flüssigkeit eindringt und die Flüssigkeit zum Aufschäumen bringt, wodurch die oberhalb der Flüssigkeitsoberfläche im Behälter befindliche Umgebungsluft verdrängt wird.US-A-2 372 457 describes a method of filling containers with a Liquid, the liquid being poured into the container and then the Container is closed, being after filling the liquid and before Seal the container with an inert gas jet on the surface of the liquid is directed that the inert gas jet penetrates the liquid and the liquid brings to frothing, causing the above the liquid surface in the container ambient air is displaced.

Bei dem aus der EP-A-0 479 030 bekannten Verfahren, bei dem zum Aufschäumen der Flüssigkeit ein Wasserstrahl eingesetzt wird, wird das Aufschäumen so kontrolliert, daß eine geringe Menge an Füllgutschaum austritt, die eine Flüssigkeitsmenge von zwischen etwa 0,3 bis 1,0 ml darstellt.In the process known from EP-A-0 479 030, in the foaming process the liquid is used a jet of water, the foaming is controlled so that a small amount of filling foam emerges, which is a liquid amount of represents between about 0.3 to 1.0 ml.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Verfahren der eingangs genannten Art sowie eine Vorrichtung zur Durchführung des Verfahrens so auszugestalten, daß auf wirtschaftliche Weise eine möglichst weitgehende Entfernung von gasförmigem Sauerstoff aus dem Kopfraum der Behälter erreicht wird. The present invention has for its object a method of the beginning mentioned type and to design a device for carrying out the method, that the greatest possible distance from gaseous oxygen is reached from the headspace of the container.

Diese Aufgabe wird verfahrensseitig erfindungsgemäß dadurch gelöst, daß der Inertgasstrahl derart von einem Inertgas umhüllt wird, daß die Reibung des Inertgasstrahls mit der Umgebungsluft vermindert wird.On the process side, this object is achieved in that the inert gas jet is enveloped by an inert gas such that the friction of the inert gas jet is reduced with the ambient air.

Unter Inertgas sind im Rahmen der vorliegenden Erfindung alle denkbaren Gase und Gasgemische zu verstehen, die bezüglich der Flüssigkeit inert sind, d.h. keine chemischen Reaktionen mit der Flüssigkeit eingehen. Insbesondere sind als Inertgas Stickstoff oder Kohlendioxid vorgesehen. Denkbar ist aber auch z.B. der Einsatz von Edelgasen. Bevorzugt wird der Inertgasstrahl aus gasförmigem Stickstoff und/oder gasförmigem Kohlendioxid gebildet. Zusätzlich oder alternativ zum gasförmigen Stickstoff und/oder gasförmigen Kohlendioxid kann der Inertgasstrahl auch flüssigen Stickstoff und/oder flüssiges Kohlendioxid aufweisen.In the context of the present invention, all conceivable gases and To understand gas mixtures that are inert to the liquid, i.e. no chemical Enter into reactions with the liquid. In particular, nitrogen is the inert gas or provided carbon dioxide. It is also conceivable e.g. the use of Noble gases. The inert gas jet is preferably made of gaseous nitrogen and / or gaseous carbon dioxide formed. In addition or as an alternative to the gaseous one The inert gas jet can also liquid and nitrogen and / or gaseous carbon dioxide Have nitrogen and / or liquid carbon dioxide.

Vorzugsweise wird der Inertgasstrahl so eingestellt, daß die Flüssigkeit genau bis zum oberen Rand des Behälters aufschäumt. Auf diese Weise sollen ein Überschäumen der Flüssigkeit und damit verbundene Reinigungsarbeiten vermieden werden.Preferably, the inert gas jet is adjusted so that the liquid exactly up to the top of the container foams. In this way, an overexposure the liquid and related cleaning work can be avoided.

Zweckmäßigerweise werden mehrere Inertgasstrahlen eng gebündelt, so daß aufgrund der Intensität des gebündelten Strahles auch bei größeren Behältern und Flüssigkeitsoberflächen ein Aufschäumen der Flüssigkeit bis zum Rand des Behälters und damit ein Verdrängen des Sauerstoffs im Behälterkopfraum bewirkt wird.Advantageously, several inert gas jets are closely bundled, so that due to the intensity of the bundled beam even with larger containers and liquid surfaces a foaming of the liquid up to the edge of the container and thus displacing the oxygen in the container head space is effected.

Um ein gleichmäßiges Aufschäumen der Flüssigkeit zu erreichen, können auch mehrere gebündelte Inertgasstrahlen über die Flüssigkeitsoberfläche verteilt eingesetzt werden.In order to achieve an even foaming of the liquid, several can bundled inert gas jets distributed over the liquid surface become.

Da durch Einstellung der Inertgasmenge und des Inertgasdruckes die Intensität des Inertgasstrahles exakt geregelt werden kann, wird mit dem erfindungsgemäßen Verfahren ein kontrolliertes Aufschäumen der Flüssigkeit im Behälter erreicht, so daß eine sichere Verdrängung des Sauerstoffs aus dem Behälter bewirkt wird, ohne die Nachteile eines Überschäumens des Behälters in Kauf nehmen zu müssen.Since by adjusting the amount of inert gas and the inert gas pressure, the intensity of Inert gas jet can be precisely controlled with the method according to the invention controlled foaming of the liquid in the container, so that a Safe displacement of the oxygen from the container is effected without the disadvantages having to put up with overflowing of the container.

Die Erfindung betrifft ferner eine Vorrichtung zum Befüllen von Behältern mit einer Flüssigkeit mit einer Behälterfülleinrichtung und einer Behälterverschließeinrichtung sowie einer Fördereinrichtung zum Transport der Behälter von der Behälterfülleinrichtung zur Behälterverschließeinrichtung, wobei zwischen der Behälterfülleinrichtung und der Behälterverschließeinrichtung eine Einrichtung zur Erzeugung von mindestens einem Inertgasstrahl vorgesehen ist, welche so ausgebildet ist, daß der Inertgasstrahl auf die Flüssigkeitsoberfläche im Behälter ausrichtbar und so einstellbar ist, daß er in die Flüssigkeit eindringt und die Flüssigkeit zum Aufschäumen bringt, wodurch die oberhalb der Flüssigkeitsoberfläche im Behälter befindliche Umgebungsluft verdrängt wird.The invention further relates to a device for filling containers with a Liquid with a container filling device and a container closing device and a conveyor for transporting the containers from the container filling device to the container closing device, wherein between the container filling device and the container closing device a device for generating at least an inert gas jet is provided, which is designed such that the inert gas jet can be aligned to the liquid surface in the container and is adjustable so that it is in the liquid penetrates and causes the liquid to foam, causing the Ambient air above the liquid surface in the container is displaced becomes.

Vorrichtungsseitig wird die gestellte Aufgabe dadurch gelöst, daß die Einrichtung zur Erzeugung des Inertgasstrahls ein Doppelrohr aufweist, das aus einem Innenrohr und einem das Innenrohr umschließenden Außenrohr besteht, wobei das Innenrohr mit einem unter hohem Druck stehenden Inertgas beaufschlagbar ist, während das Außenrohr mit einem unter niedrigen Druck stehenden Inertgas beaufschlagbar ist.On the device side, the task is solved in that the device for Generation of the inert gas jet has a double tube consisting of an inner tube and there is an outer tube surrounding the inner tube, the inner tube with an inert gas under high pressure can be acted upon, while the External tube can be acted upon with an inert gas under low pressure.

Vorzugsweise ist die Einrichtung zur Erzeugung des Inertgasstrahles so einstellbar, daß der Inertgasstrahl die Flüssigkeit genau bis zum oberen Rand des Behälters zum Aufschäumen bringt.The device for generating the inert gas jet is preferably adjustable in such a way that that the inert gas jet the liquid exactly up to the top of the container Foaming brings.

Das Außenrohr ist vorzugsweise konzentrisch zum Innenrohr angeordnet. Sowohl das Innenrohr als auch das Außenrohr stehen mit einer Inertgasversorgungseinrichtung in Verbindung, wobei jedoch das Innenrohr mit einem unter hohen Druck, z.B. 1,5 bar bis 10 bar, stehenden Inertgas und das Außenrohr mit einem unter niedrigen Druck, z.B. 1,1 bar bis 3 bar, stehenden Inertgas beaufschlagbar sind. Im Innenrohr wird der sog. Wirkstrahl, vorzugsweise mit einem Querschnitt von ca. 0,3 bis ca. 1 mm, gebildet, der in die im Behälter befindliche Flüssigkeit eindringt und diese zum Aufschäumen bringt. Das Außenrohr erfüllt dagegen die Funktion eines Hüllrohres, wobei das aus dem Außenrohr ausströmende Inertgas den aus dem Innenrohr austretenden Wirkstrahl umhüllt und so die Reibung des Wirkstrahles mit der Umgebungsluft vermindert, wodurch ein Aufreißen des Wirkstrahls nach dem Austritt aus dem Innenrohr verhindert wird.The outer tube is preferably arranged concentrically with the inner tube. Both that The inner tube and the outer tube are in an inert gas supply device Connection, however, the inner tube with a high pressure, e.g. 1.5 bar to 10 bar, inert gas and the outer tube with a low pressure, e.g. 1.1 bar to 3 bar, standing inert gas can be charged. The so-called. Active beam, preferably with a cross section of about 0.3 to about 1 mm, the penetrates into the liquid in the container and causes it to foam. The outer tube, on the other hand, fulfills the function of a cladding tube, which is from Inert gas flowing out of the outer tube the active jet emerging from the inner tube envelops and thus reduces the friction of the active beam with the ambient air, thereby prevents the active beam from tearing open after it emerges from the inner tube becomes.

Die Erfindung eignet sich zum Einfüllen von allen denkbaren Flüssigkeiten in Behälter, wobei unter Flüssigkeiten im Sinne der vorliegenden Erfindung alle Medien zu verstehen sind, die zum Aufschäumen gebracht werden können. Insbesondere ist die Erfindung zum Einfüllen von flüssigen Lebensmitteln, z.B. Bier, in Dosen oder Flaschen vorgesehen. Dabei ist die Anwendung der Erfindung nicht nur auf carbonisierte Flüssigkeiten beschränkt.The invention is suitable for filling all conceivable liquids into containers, whereby liquids in the sense of the present invention mean all media are that can be made to foam. In particular, the invention for filling liquid foods, e.g. Beer, in cans or bottles intended. The application of the invention is not only carbonized Limited liquids.

Mit der Erfindung kann der Sauerstoffgehalt in den verschlossenen Behältern bezogen auf die Flüssigkeit auf unter 0,1 mg Sauerstoff pro Liter abgesenkt werden. Dadurch können Oxidationsvorgänge in den Flüssigkeiten zuverlässig verhindert werden, so daß die Qualität und Haltbarkeit der Flüssigkeiten, insbesondere der flüssigen Lebensmittel erhöht wird.With the invention, the oxygen content in the closed containers can be obtained on the liquid can be reduced to below 0.1 mg oxygen per liter. Thereby oxidation processes in the liquids can be reliably prevented, so that the quality and shelf life of liquids, especially liquid foods is increased.

Mit besonderem Vorteil wird die Erfindung bei der Bierabfüllung eingesetzt. Gerade bei Bier sind die Anforderungen, ein hygienisch einwandfreies und haltbares Produkt zu erhalten, besonderes hoch. Da bei Bier die Zugabe von Konservierungsstoffen besonders verpönt ist (Deutsches Reinheitsgebot), muß die Haltbarkeit des Bieres auf andere Weise gewährleistet werden. Mit der vorliegenden Erfindung wurde eine Möglichkeit geschaffen, auf wirtschaftliche Weise ohne Zugabe von Konservierungsstoffen die Haltbarkeit von Getränken wesentlich zu erhöhen und gleichzeitig die hygienischen Bedingungen beim Abfüllvorgang deutlich zu verbessern.The invention is used with particular advantage in beer bottling. Especially with Beer is the requirement to get a hygienically perfect and durable product, particularly high. Because the addition of preservatives to beer is special is frowned upon (German Purity Law), the shelf life of the beer must other way. With the present invention, a Possibility created in an economical way without the addition of preservatives the shelf life of beverages significantly increase and at the same time the to significantly improve hygienic conditions during the filling process.

Im folgenden soll die Erfindung anhand eines in der Figur schematisch dargestellten Ausführungsbeispiels näher erläutert werden:In the following, the invention is to be illustrated on the basis of one shown schematically in the figure Exemplary embodiment are explained in more detail:

Das vorliegende Ausführungsbeispiel betrifft eine Getränkeabfülleinrichtung zum Einfüllen von Bier in Dosen. Eine Anlage zum Einfüllen von Bier in Flaschen wäre ähnlich aufgebaut.The present exemplary embodiment relates to a beverage filling device for Filling beer into cans. A facility for bottling beer would be constructed similarly.

Die Getränkedosen 1 werden in einer Dosenfüllmaschine 2 mit Bier 3 befüllt. Die befüllten Getränkedosen 1 werden anschließend auf einem Transportweg 4 in Laufrichtung 5 zu einer Dosenverschließmaschine 6 befördert. Auf dem Weg von der Dosenfüllmaschine 2 zur Dosenverschließmaschine 6 werden die mit Bier gefüllten Getränkedosen 1 von einer Strahlerzeugungseinrichtung 7 mit einem gebündelten Inertgasstrahl 8 beaufschlagt. Die Strahlerzeugungseinrichtung 7 steht mit einer in der Figur nicht dargestellten Inertgasversorgungseinrichtung, z.B. einem Flüssigstickstofftank, in Verbindung. Die Strahlerzeugungseinrichtung 7 weist ein Doppelrohr 9 auf, das aus einem Innenrohr 10 und einem Außenrohr 11 besteht. Im Innenrohr 10 wird ein eng gebündelter Inertgasstrahl mit einem Durchmesser von ca. 0,5 mm gebildet, der unter hohem Druck von ca. 5 bar steht. Dieser eng gebündelte Inertgasstrahl dient als Wirkstrahl, der in die im Behälter 1 enthaltene Flüssigkeit eintritt. Aus dem Außenrohr 11 tritt ein unter niedrigem Druck von ca. 2 bar stehendes Inertgas aus, das den Wirkstrahl konzentrisch umhüllt. Dadurch wird die Reibung des Wirkstrahles nach Verlassen des Innenrohres 10 mit der Umgebungsluft vermindert, wodurch ein Aufreißen des Wirkstrahles nach dem Austritt aus dem Innenrohr 10 verhindert wird. Der in die Flüssigkeit eingedrungene Inertgasstrahl 8 bringt die Flüssigkeit in der Getränkedose 1 zum Aufschäumen, wodurch die in der Getränkedose 1 vorhandene Luft verdrängt wird. Der Inertgasstrahl 8 wird so eingestellt, daß die Flüssigkeit genau bis zum oberen Rand der Getränkedose 1 aufschäumt. Nach Verschließen der Getränkedose 1 mittels der Verschließmaschine 6 befindet sich in der Getränkedose 1 nur noch das eingefüllte Bier und Inertgas.The beverage cans 1 are filled with beer 3 in a can filling machine 2. The filled beverage cans 1 are then on a transport path 4 in the direction of travel 5 transported to a can sealing machine 6. On the way from the Can filling machine 2 for can closing machine 6 are those filled with beer Beverage cans 1 from a beam generating device 7 with a bundled one Inert gas jet 8 is applied. The beam generating device 7 is located in the Figure not shown inert gas supply device, e.g. a liquid nitrogen tank, in connection. The beam generating device 7 has a double tube 9 which consists of an inner tube 10 and an outer tube 11. In the inner tube 10 is a tightly bundled inert gas jet with a diameter of about 0.5 mm, the is under high pressure of approx. 5 bar. This tightly focused inert gas jet serves as Active jet that enters the liquid contained in the container 1. From the outer tube 11 emerges an inert gas, which is under a low pressure of approx wrapped concentrically. This will reduce the friction of the active beam after leaving of the inner tube 10 is reduced with the ambient air, causing tearing of the active beam is prevented after exiting the inner tube 10. The one in the Inert gas jet 8 which has penetrated liquid brings the liquid into the beverage can 1 for foaming, which displaces the air in the beverage can 1 becomes. The inert gas jet 8 is set so that the liquid exactly up to the top Foam edge of the beverage can 1. After closing the beverage can 1 using the sealing machine 6 is in the beverage can 1 only the filled Beer and inert gas.

Claims (7)

  1. Method for filling containers with a liquid, in which the liquid is introduced into the container and then the container is closed, at least one inert-gas jet (8) being directed onto the surface of the liquid following introduction (3) of the liquid and before closure (6) of the container, in such a manner that the inert-gas jet (8) penetrates into the liquid and causes the liquid to foam up, with the result that the ambient air which is situated above the liquid surface in the container (1) is displaced, characterized in that the inert-gas jet is cloaked by an inert gas in such a manner that the friction between the inert-gas jet and the ambient air is reduced.
  2. Method according to Claim 1, characterized in that the inert-gas jet is formed from nitrogen and/or carbon dioxide.
  3. Method according to Claim 2, characterized in that the inert-gas jet is formed from gaseous oxygen and/or gaseous carbon dioxide.
  4. Method according to one of Claims 1 to 3, characterized in that the inert-gas jet (8) is set in such a way that the liquid foams up exactly to the top rim of the container (1).
  5. Method according to one of Claims 1 to 4, characterized in that a plurality of inert-gas jets (8) are bundled tightly together.
  6. Apparatus for filling containers with a liquid, having a container-filling device and a container-closing device and a conveying device for transporting the containers from the container-filling device to the container-closing device, a device (7) for generating at least one inert-gas jet (8) being provided between the container-filling device (2) and the container-closing device (6), which device (7) is designed in such a way that the inert-gas jet (8) can be directed onto the liquid surface in the container (1) and can be set in such a way that it penetrates into the liquid and causes the liquid to foam up, with the result that the ambient air which is situated above the liquid surface in the container (1) is displaced, characterized in that the device (7) for generating the inert-gas jet (8) has a double tube (9), which comprises an inner tube (10) and an outer tube (11) which surrounds the inner tube (10), it being possible to supply the inner tube (10) with an inert gas which is at high pressure, while the outer tube (11) can be supplied with an inert gas which is at low pressure.
  7. Apparatus according to Claim 6, characterized in that the device (7) for generating the inert-gas jet (8) can be set in such a way that the inert-gas jet (8) causes the liquid to foam up exactly to the top rim of the container (1).
EP98107051A 1997-05-01 1998-04-17 Method and device for removing air from the head space above a liquid in filled containers Expired - Lifetime EP0875484B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19718276A DE19718276A1 (en) 1997-05-01 1997-05-01 Method and device for filling containers with liquids
DE19718276 1997-05-01

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EP0875484A1 EP0875484A1 (en) 1998-11-04
EP0875484B1 true EP0875484B1 (en) 2000-07-26

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EP (1) EP0875484B1 (en)
AT (1) ATE194969T1 (en)
CZ (1) CZ134898A3 (en)
DE (2) DE19718276A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007014804A1 (en) * 2007-03-28 2008-10-02 Khs Ag Process for removing residual air from the headspace of a container for beverages, such as a beer can
DE102020120834A1 (en) * 2020-08-06 2022-02-10 Krones Aktiengesellschaft Foaming of a filling product placed in a container

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7931642U1 (en) * 1980-02-28 Holstein Und Kappert Gmbh, 4600 Dortmund Device for foaming liquids in bottles
US2372457A (en) * 1941-02-13 1945-03-27 Crown Cork & Seal Co Method for packaging beverages
US2672420A (en) * 1949-07-07 1954-03-16 Pacific Can Company Apparatus and method for conditioning cans of foaming liquids
DE2134640C3 (en) * 1971-07-12 1975-05-07 Seitz-Werke Gmbh, 6550 Bad Kreuznach Method and device for displacing the air from bottles or the like. Containers by foam development of the bottled beverage
DE2615429A1 (en) * 1976-04-09 1977-10-20 Enzinger Union Werke Ag Air exclusion system for beer bottling - has fine jet of liq. carbon dioxide passed into bottles to cause formation of fine foam
GB2125937B (en) * 1982-08-26 1986-06-25 Metal Box Plc Dispensing volatile liquids
DE4030081A1 (en) * 1990-09-22 1992-03-26 Seitz Enzinger Noll Masch SUPPLY DEVICE FOR PREVENTING THE ROLLING AIR VOLUME FROM CONTAINERS FILLED WITH A SEPARATE FLUID FILLER, IN PARTICULAR BOTTLES
DE4135438A1 (en) * 1991-10-26 1993-04-29 Orthmann & Herbst Method of generating foam in carbonated beverages - uses jet of water of variable impact to allow nozzle to be varied in position
DE19502452A1 (en) * 1995-01-26 1996-08-01 Kronseder Maschf Krones Method and device for treating vessels

Also Published As

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DE59800211D1 (en) 2000-08-31
ATE194969T1 (en) 2000-08-15
EP0875484A1 (en) 1998-11-04
CZ134898A3 (en) 1998-12-16
DE19718276A1 (en) 1998-11-05

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