EP0679590A1 - Container - Google Patents
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- Publication number
- EP0679590A1 EP0679590A1 EP95810276A EP95810276A EP0679590A1 EP 0679590 A1 EP0679590 A1 EP 0679590A1 EP 95810276 A EP95810276 A EP 95810276A EP 95810276 A EP95810276 A EP 95810276A EP 0679590 A1 EP0679590 A1 EP 0679590A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- vacuum
- sack
- insert
- polyethylene
- 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.)
- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/02—Wall construction
- B65D90/04—Linings
- B65D90/046—Flexible liners, e.g. loosely positioned in the container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
- B65F2210/00—Equipment of refuse receptacles
- B65F2210/179—Suction means, e.g. for forcing a bag inside the receptacle
Definitions
- the present invention relates to containers as are used in the manufacture or processing of, in particular, liquid products.
- Containers such as Large containers, production boilers and barrels etc. e.g. in the chemical, pharmaceutical or food industry, the contents are usually heavily contaminated during processing. In order to be able to use the containers again, they usually have to be cleaned carefully. This often requires complex cleaning systems or even special rooms for cleaning work with safety troughs as collecting basins and, if necessary, machine rooms. In addition, there are waiting times in the cleaning systems, so that the cleaning of containers is considerable in terms of time and material. In addition, the detergents and solvents used must be removed from the wastewater and the ambient air, which in turn is usually only possible with expensive filter, catalyst, absorption or. Adsorption plants can be accomplished.
- This object is achieved by a container that a vacuum sack adhering to almost the entire inner surface of the container and a mobile or stationary means for generating negative pressure or. Contains vacuum between the insert sack and the inner surface of the container.
- the upper edge of the insert sack protrudes beyond the edge of the container and is turned over its upper edge so that a vacuum can be created on the inside of the container. This measure is particularly sufficient if the container opening has rounded edges because the bearing surface of the insert sack on the container wall is large enough to be able to form an airtight seal. If the container opening is rather (sharp) edged, the insert sack must be attached to the container wall with adhesive tapes, clamping devices or clips.
- a tube of oval or round cross-section e.g. attached by welding so that the insert sack can form an airtight seal on the circumference of the tube.
- the size of the cross section of the tube can be adapted to the size of the container.
- the vacuum between the inner surface of the container and the insert sack can be generated by a commercially available vacuum pump that is attached to the outside of the container by means of a container bore. It is usually sufficient if the pump before the start of the production or Processing process creates the vacuum, but it is also possible to increase the vacuum if necessary during the process or to maintain it if it is not completely airtight by continuing to use the pump.
- a container bore in the container base is preferably used.
- a piece of an air-permeable plastic mat for example an air cushion film with knobbed profile, or a suitable foam mat is preferably laid between the container bore and the insert sack so that the insert sack cannot be drawn out through the container bore when the vacuum is created.
- Such Plastic mats lie only insignificantly because they are usually no thicker than 2 cm.
- the container does not have a suitable edge and no hole, it can be easily e.g. by welding a round tube to the upper edge and making a hole e.g. be converted in the bottom of the container.
- This variant of the conversion is particularly suitable for open boilers, such as those used in the paint and varnish industry.
- Plastic film can be used as the material for the insert sack.
- Polypropylenes, polyamides, polyesters, polyurethanes are suitable, but preferably HD and / or LD polyethylenes.
- Mixtures of HD and LD polyethylene can e.g. Contain 85% LD and 15% HD Polyethylene.
- coated plastic films such as Use polyethylene coated with aluminum, polypropylene or polyamide. With such foils, products can easily be made even at higher temperatures, e.g. Process at 80 ° C.
- the thickness of the film is preferably 30-300 ⁇ , particularly preferably 80-150 ⁇ .
- the insert bags can be made in any size, so that containers from a few liters to more than 2000 liters can be designed.
- Round-bottom bags can be used for vessels with a flat, round bottom, and suitable-sized curved bags for round-arch vessels.
- the vacuum is released, the processed material and the insert sack according to the invention are removed from the container together or separately, and the latter is added to the waste or stored together with the processed material.
- the container itself remains clean and therefore does not have to be cleaned so that nothing stands in the way of its immediate further use.
- a boiler (1) is shown in section in the drawing.
- a round tube (5) is welded all around on the edge of the boiler.
- An insert sack (3) covers the entire inner surface of the boiler (1) and protrudes beyond its upper edge. This upper area of the insert sack (3) is placed over the round tube (5).
- a mobile vacuum pump (2) is located outside the boiler (1) and is connected to the interior of the boiler (1) by means of the container bore (4).
- An air-permeable plastic mat (6) is positioned above the container bore (4). When creating a vacuum, the insert sack (3) is sucked up to the round tube (5) on the inner surface of the boiler (1).
- the round tube (5) ensures an airtight seal of the insert sack (3) and the air-permeable plastic mat (6) prevents the container bore (4) from becoming blocked.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Packages (AREA)
- Bag Frames (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft Behälter, wie sie bei der Fabrikation oder Verarbeitung von insbesondere flüssigen Produkten verwendet werden.The present invention relates to containers as are used in the manufacture or processing of, in particular, liquid products.
Behälter, wie z.B. Grossgebinde, Produktionskessel und Fässer usw. z.B. in der chemischen, pharmazeutischen oder Nahrungsmittelindustrie werden bei der Verarbeitung des Füllguts meist stark verschmutzt. Um die Behälter wieder verwenden zu können, müssen sie deswegen in der Regel sorgfältig geputzt werden. Dazu braucht es häufig aufwendige Reinigungsanlagen oder gar spezielle Räumlichkeiten für die Reinigungsarbeiten mit Sicherheitswannen als Auffangbecken und gegebenenfalls Maschinenräume dazu. Zudem fallen Wartezeiten in den Reinigungsanlagen an, so dass das Reinigen von Behältern vom zeitlichen und materiellen Aufwand her beträchtlich ist. Es kommt hinzu, dass die verwendeten Wasch- und Lösungsmittel dem Abwasser und der Umgebungsluft wieder entzogen werden müssen, was wiederum meist nur mit teuren Filter-, Katalysator-, Absorptions- resp. Adsorptionsanlagen bewerkstelligt werden kann.Containers such as Large containers, production boilers and barrels etc. e.g. in the chemical, pharmaceutical or food industry, the contents are usually heavily contaminated during processing. In order to be able to use the containers again, they usually have to be cleaned carefully. This often requires complex cleaning systems or even special rooms for cleaning work with safety troughs as collecting basins and, if necessary, machine rooms. In addition, there are waiting times in the cleaning systems, so that the cleaning of containers is considerable in terms of time and material. In addition, the detergents and solvents used must be removed from the wastewater and the ambient air, which in turn is usually only possible with expensive filter, catalyst, absorption or. Adsorption plants can be accomplished.
Es ist deshalb Aufgabe der Erfindung, die aufwendigen Reinigungsverfahren für Behälter, wie z.B. Grossgebinde, Produktionskessel und Fässer, auf ein Minimum zu reduzieren oder gar zu vermeiden.It is therefore an object of the invention to develop the complex cleaning processes for containers, e.g. Large containers, production boilers and barrels to be reduced to a minimum or even avoided.
Gelöst wird diese Aufgabe durch einen Behälter, der einen unter Vakuum annähernd an der gesamten Behälterinnenfläche anhaftenden Einlagesack und ein mobiles oder stationäres Mittel zur Erzeugung von Unterdruck resp. Vakuum zwischen Einlagesack und Behälterinnenfläche enthält.This object is achieved by a container that a vacuum sack adhering to almost the entire inner surface of the container and a mobile or stationary means for generating negative pressure or. Contains vacuum between the insert sack and the inner surface of the container.
Der obere Rand des Einlagesacks ragt dabei über den Behälterrand hinaus und wird über dessen oberen Rand nach aussen gestülpt, damit an der Behälterinnenfläche ein Vakuum erzeugt werden kann. Diese Massnahme reicht insbesondere dann aus, wenn die Behälteröffnung abgerundete Kanten aufweist, weil die Auflagefläche des Einlagesacks auf der Behälterwand genügend gross ist, um einen luftdichten Abschluss bilden zu können. Ist die Behälteröffnung aber eher (scharf) kantig, muss der Einlagesack mit Klebbändern, Spannmitteln oder Klemmen an der Behälterwand befestigt werden.The upper edge of the insert sack protrudes beyond the edge of the container and is turned over its upper edge so that a vacuum can be created on the inside of the container. This measure is particularly sufficient if the container opening has rounded edges because the bearing surface of the insert sack on the container wall is large enough to be able to form an airtight seal. If the container opening is rather (sharp) edged, the insert sack must be attached to the container wall with adhesive tapes, clamping devices or clips.
Vorzugsweise wird solchenfalls aber auf dem Behälterrand ein Rohr ovalen oder runden Querschnitts z.B. durch Verschweissen befestigt, so dass der Einlagesack am Umfang des Rohrs einen luftdichten Abschluss bilden kann. Die Grösse des Querschnitts des Rohrs kann dabei der Grösse des Behälters angepasst werden.In such a case, however, a tube of oval or round cross-section, e.g. attached by welding so that the insert sack can form an airtight seal on the circumference of the tube. The size of the cross section of the tube can be adapted to the size of the container.
Das Vakuum zwischen Behälterinnenfläche und Einlagesack kann durch eine handelsübliche Vakuumpumpe erzeugt werden, die von aussen mittels einer Behälterbohrung an den Behälter angesetzt wird. Üblicherweise reicht es aus, wenn die Pumpe vor dem Beginn des Produktions- resp. Verarbeitungsverfahrens das Vakuum erzeugt, doch ist es auch möglich, das Vakuum bei Bedarf während des Verfahrens zu erhöhen oder bei nicht ganz luftdichtem Abschluss durch Weiterverwendung der Pumpe beizubehalten.The vacuum between the inner surface of the container and the insert sack can be generated by a commercially available vacuum pump that is attached to the outside of the container by means of a container bore. It is usually sufficient if the pump before the start of the production or Processing process creates the vacuum, but it is also possible to increase the vacuum if necessary during the process or to maintain it if it is not completely airtight by continuing to use the pump.
Vorzugsweise wird eine Behälterbohrung im Behälterboden verwendet. Im Bereich dieser Öffnung wird vorzugsweise als Auflagegitter ein Stück einer luftdurchlässigen Kunststoffmatte, z.B. einer Luftpolsterfolie mit Noppenprofil, oder einer geeigneten Schaumstoffmatte zwischen Behälterbohrung und Einlagesack verlegt, damit der Einlagesack bei Erzeugung des Vakuums nicht durch die Behälterbohrung hindurch nach aussen gesogen werden kann. Solche Kunststoffmatten liegen nur unwesentlich auf, weil sie in der Regel nicht dicker als 2 cm sind.A container bore in the container base is preferably used. In the area of this opening, a piece of an air-permeable plastic mat, for example an air cushion film with knobbed profile, or a suitable foam mat is preferably laid between the container bore and the insert sack so that the insert sack cannot be drawn out through the container bore when the vacuum is created. Such Plastic mats lie only insignificantly because they are usually no thicker than 2 cm.
Weist der Behälter keinen geeigneten Rand und keine Bohrung auf, kann er auf einfache Art z.B. durch Aufschweissung eines Rundrohrs auf den oberen Rand und Anfertigen einer Bohrung z.B. im Behälterboden umgerüstet werden. Diese Variante der Umrüstung eignet sich insbesondere gut für offene Kessel, wie sie in der Farb- und Lackindustrie verwendet werden.If the container does not have a suitable edge and no hole, it can be easily e.g. by welding a round tube to the upper edge and making a hole e.g. be converted in the bottom of the container. This variant of the conversion is particularly suitable for open boilers, such as those used in the paint and varnish industry.
Als Material für den Einlagesack kann man Kunststofffolien verwenden. Es eignen sich Polypropylene, Polyamide, Polyester, Polyurethane, vorzugsweise aber HD und/oder LD Polyethylene. Gemische von HD und LD Polyethylene können z.B. 85% LD und 15% HD Polyethlene enthalten. Es lassen sich aber auch beschichtete Kunstofffolien, wie z.B. mit Aluminium, Polypropylen oder Polyamid beschichtetes Polyethylen verwenden. Mit solchen Folien lassen sich ohne weiteres Produkte auch bei höheren Temperaturen von z.B. 80°C verarbeiten. Die Dicke der Folie beträgt vorzugsweise 30-300 µ, besonders bevorzugt 80-150 µ.Plastic film can be used as the material for the insert sack. Polypropylenes, polyamides, polyesters, polyurethanes are suitable, but preferably HD and / or LD polyethylenes. Mixtures of HD and LD polyethylene can e.g. Contain 85% LD and 15% HD Polyethylene. However, coated plastic films, such as Use polyethylene coated with aluminum, polypropylene or polyamide. With such foils, products can easily be made even at higher temperatures, e.g. Process at 80 ° C. The thickness of the film is preferably 30-300 μ, particularly preferably 80-150 μ.
Die Einlagesäcke können in jeder beliebigen Grösse hergestellt werden, so dass Behälter von wenigen Litern Inhalt bis mehr als 2000 Liter Inhalt damit ausgelegt werden können. Für Gefässe mit flachem rundem Boden lassen sich Rundbodensäcke und für Rundbogengefässe Bogensäcke geeigneter Grösse verwenden.The insert bags can be made in any size, so that containers from a few liters to more than 2000 liters can be designed. Round-bottom bags can be used for vessels with a flat, round bottom, and suitable-sized curved bags for round-arch vessels.
Nach Gebrauch, der auch mehrmalig sein kann, wird das Vakuum abgelassen, das verarbeitete Material und der erfindungsgemässe Einlagesack gemeinsam oder getrennt aus dem Behälter entfernt und Letzterer dem Abfall beigefügt oder zusammen mit dem verarbeiteten Material gelagert. Der Behälter selber bleibt sauber und muss deshalb nicht gereinigt werden, so dass seiner sofortigen Weiterbenützung nichts im Wege steht.After use, which can also be repeated, the vacuum is released, the processed material and the insert sack according to the invention are removed from the container together or separately, and the latter is added to the waste or stored together with the processed material. The container itself remains clean and therefore does not have to be cleaned so that nothing stands in the way of its immediate further use.
Sofern geerdete Behälter aus Metall verwendet werden, besteht ein weiterer Vorteil des Einlagesacks darin, dass er sich bei der Herausnahme statisch entlädt, so dass keine Funken und damit auch keine Brand- oder Explosionsgefahr entstehen.If earthed containers made of metal are used, a further advantage of the insert sack is that it is statically discharged when it is removed, so that there are no sparks and therefore no risk of fire or explosion.
Wesentliche Vorteile der Erfindung sind darin zu sehen, dass unter Erzielung ökonomischer und ökologischer Vorteile die Funktionsweise der Behälter nicht beeinträchtigt wird. Es lässt sich dank der gegenüber Chemikalien praktisch inerten Einlagesäcke jedes Füllgut darin verarbeiten. Wegen des an der Behälterinnenfläche dank Vakuums anhaftenden Einlagesacks kann das Füllgut auf herkömmliche Art bewegt, z.B. gerührt oder geschüttelt werden, ohne dass sich der Einlagesack von seiner Fläche löst. Es können Kessel auch aus nicht rostfreiem Stahl verwendet werden. Die Produktions- resp. Verarbeitungsanlagen müssen für die Benützung der Erfindung praktisch nicht geändert werden. Die Luft- und Abwasserbelastung und der Energieverbrauch bei der Reinigung sowie der Wärmeverlust durch starke Luftzirkulation und die Verwendung von Lösungsmitteln entfällt. Damit lassen sich die Luftreinhalteverordnungen leichter einhalten. Die Entsorgung der einfach zu montierenden und demontierenden Einlagesäcke ist unproblematisch. Es besteht die Möglichkeit, in ein und demselben Behälter mehrere Chargen des gleichen Produkts herzustellen. Die Behälter können aber sowohl für die Fabrikation als auch für die Lagerung von Produkten verwendet werden.Significant advantages of the invention are the fact that the functioning of the containers is not impaired while achieving economic and ecological advantages. Thanks to the insert sacks, which are practically inert to chemicals, any filling material can be processed in it. Due to the insert sack adhering to the inside of the container thanks to the vacuum, the contents can be moved in a conventional manner, e.g. be stirred or shaken without the insert sack coming off its surface. Stainless steel boilers can also be used. The production resp. Processing plants practically do not need to be changed to use the invention. The air and wastewater pollution and the energy consumption during cleaning as well as the heat loss due to strong air circulation and the use of solvents are eliminated. This makes it easier to comply with the air pollution control regulations. Disposing of the easy-to-assemble and disassemble insert bags is unproblematic. It is possible to produce several batches of the same product in the same container. However, the containers can be used both for the manufacture and for the storage of products.
Die Erfindung wird anhand der folgenden Zeichnung näher erläutert.The invention is illustrated by the following drawing.
In der Zeichnung ist ein Kessel (1) im Schnitt gezeigt. Auf den Kesselrand ist ein Rundrohr (5) ringsum aufgeschweisst.A boiler (1) is shown in section in the drawing. A round tube (5) is welded all around on the edge of the boiler.
Ein Einlagesack (3) bedeckt die gesamte innere Fläche des Kessels (1) und ragt über dessen oberen Rand hinaus. Dieser obere Bereich des Einlagesacks (3) wird über das Rundrohr (5) gestülpt. Eine mobile Vakuumpumpe (2) befindet sich ausserhalb des Kessels (1) und ist mittels der Behälterbohrung (4) mit dem Innenraum des Kessels (1) verbunden. Über der Behälterbohrung (4) ist eine luftdurchlässige Kunststoffmatte (6) positioniert. Bei Erzeugen von Vakuum wird der Einlagesack (3) bis zum Rundrohr (5) hinauf an der Innenfläche des Kessels (1) festgesogen. Das Rundrohr (5) gewährleistet dabei einen luftdichten Abschluss des Einlagesacks (3) und die luftdurchlässige Kunststoffmatte (6) verhindert die Verstopfung der Behälterbohrung (4).An insert sack (3) covers the entire inner surface of the boiler (1) and protrudes beyond its upper edge. This upper area of the insert sack (3) is placed over the round tube (5). A mobile vacuum pump (2) is located outside the boiler (1) and is connected to the interior of the boiler (1) by means of the container bore (4). An air-permeable plastic mat (6) is positioned above the container bore (4). When creating a vacuum, the insert sack (3) is sucked up to the round tube (5) on the inner surface of the boiler (1). The round tube (5) ensures an airtight seal of the insert sack (3) and the air-permeable plastic mat (6) prevents the container bore (4) from becoming blocked.
Claims (5)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH128794A CH689160A5 (en) | 1994-04-26 | 1994-04-26 | Behaelter with liner bag. |
| CH1287/94 | 1994-04-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0679590A1 true EP0679590A1 (en) | 1995-11-02 |
Family
ID=4206903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95810276A Withdrawn EP0679590A1 (en) | 1994-04-26 | 1995-04-26 | Container |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0679590A1 (en) |
| CH (1) | CH689160A5 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1260457A1 (en) * | 2001-04-23 | 2002-11-27 | Daniele Berti | Waste bin |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1965155A1 (en) * | 1968-12-19 | 1970-07-02 | Tills Engineering Co Ltd | Container with flexible additional container |
| FR2277004A1 (en) * | 1974-07-02 | 1976-01-30 | Carborundum Co | Process vessel with lining esp. of fluorinated polymer - has pressure balancing space behind lining to stabilise stresses |
| GB1561320A (en) * | 1978-03-21 | 1980-02-20 | Fisher L | Water retaining linings |
| DE3902317A1 (en) * | 1988-12-13 | 1990-06-21 | Edelhoff Polytechnik | Container having an opening which can be closed by a lid |
| EP0443709A1 (en) * | 1990-01-11 | 1991-08-28 | Bord Na Mona | A method and system for lining cargo containers |
-
1994
- 1994-04-26 CH CH128794A patent/CH689160A5/en not_active IP Right Cessation
-
1995
- 1995-04-26 EP EP95810276A patent/EP0679590A1/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1965155A1 (en) * | 1968-12-19 | 1970-07-02 | Tills Engineering Co Ltd | Container with flexible additional container |
| FR2277004A1 (en) * | 1974-07-02 | 1976-01-30 | Carborundum Co | Process vessel with lining esp. of fluorinated polymer - has pressure balancing space behind lining to stabilise stresses |
| GB1561320A (en) * | 1978-03-21 | 1980-02-20 | Fisher L | Water retaining linings |
| DE3902317A1 (en) * | 1988-12-13 | 1990-06-21 | Edelhoff Polytechnik | Container having an opening which can be closed by a lid |
| EP0443709A1 (en) * | 1990-01-11 | 1991-08-28 | Bord Na Mona | A method and system for lining cargo containers |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1260457A1 (en) * | 2001-04-23 | 2002-11-27 | Daniele Berti | Waste bin |
Also Published As
| Publication number | Publication date |
|---|---|
| CH689160A5 (en) | 1998-11-13 |
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