EP3400180B1 - Transport and storage container of plastic for a filling material - Google Patents

Transport and storage container of plastic for a filling material Download PDF

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Publication number
EP3400180B1
EP3400180B1 EP16829094.8A EP16829094A EP3400180B1 EP 3400180 B1 EP3400180 B1 EP 3400180B1 EP 16829094 A EP16829094 A EP 16829094A EP 3400180 B1 EP3400180 B1 EP 3400180B1
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EP
European Patent Office
Prior art keywords
electrically conductive
transport
storage container
inner container
container
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.)
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Application number
EP16829094.8A
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German (de)
French (fr)
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EP3400180A1 (en
Inventor
Bodo Richter
Günter Richter
Sylvia LÜTTGENS
Günter LÜTTGENS
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Rikutec Richter Kunststofftechnik & Co KG GmbH
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Rikutec Richter Kunststofftechnik & Co KG GmbH
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Priority to PL16829094T priority Critical patent/PL3400180T3/en
Publication of EP3400180A1 publication Critical patent/EP3400180A1/en
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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
    • B65D90/22—Safety features
    • B65D90/46—Arrangements for carrying off, or preventing the formation of electrostatic charges
    • 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
    • B65D77/0446—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid or semi-rigid and the outer container being of polygonal cross-section not formed by folding or erecting one or more blanks
    • B65D77/0453—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid or semi-rigid and the outer container being of polygonal cross-section not formed by folding or erecting one or more blanks the inner container having a polygonal cross-section
    • B65D77/0466—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid or semi-rigid and the outer container being of polygonal cross-section not formed by folding or erecting one or more blanks the inner container having a polygonal cross-section the containers being mounted on a pallet
    • 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

Definitions

  • the invention relates to a transport and storage container made of plastic for a filling material, with an inner container with a receiving volume of 50 to 5000 l for receiving the contents and with an open-topped outer container which receives the inner container and contains at least one layer of electrically dissipative plastic ,
  • Such a container is from the DE 201 07 962 U1 known.
  • a conductive filler is added to the plastic material of the inner container, so that a certain electrical conductivity and thus an electrically antistatic, or charge-discharging effect is achieved.
  • the outer container is also made of plastic and multilayer, with its inner layer and its outer layer of electrically dissipative plastic is formed.
  • the plastic material for the inner container must also have a very high purity.
  • the addition of electrically conductive fillers and the use of the coextrusion blow molding process can not ensure that impurities are released via the container walls to the contents.
  • the production of multilayer walls for the inner container in the blow molding process is complicated.
  • EP 0 893 362 A1 relates to a transport and storage container for liquids.
  • a plastic inner container comprises a fabric-like sheath made of an electrically conductive material which completely or partially surrounds the inner container, so that electrical charges which may form on the surface of the plastic inner container during filling and emptying of the transport and storage container Enclosure, an outer shell and a base, which also consists of an electrically conductive material can be discharged into the ground.
  • the surrounding the inner container outer shell of the transport and storage container is made open and consists of vertical and horizontal bars of metal.
  • the inner container which is preferably produced by the blow-molding process, has a single-layered wall structure and preferably consists of stabilizer-free polyethylene, in particular of HDPE (high density polyethylene) of high purity.
  • the outer circumferential surface in particular the vertical side surfaces in a cuboid inner container, is enveloped with an electrically dissipative flexible material.
  • At least one electrically dissipative tab is arranged so that it covers at least part of the top of the inner container, wherein the tab is electrically connected to the electrically dissipative material on the lateral surface of the inner container. In this way, much of the inner container is electrically shielded and can not build up local electrostatic charges that could lead to an electrostatic gas discharge.
  • the outer container contains at least one layer of electrically dissipative plastic, so that the underside of the inner container, which rests on the floor of the outer container due to its own weight, is well shielded.
  • the tab may be formed integrally with the material surrounding the lateral surface of the inner container. It is also possible to carry out the tab as a separate part. Preferably, the material of the tab is the same as the material enveloping the lateral surface. According to a preferred embodiment is as a dissipative material used an antistatic, electrically dissipative plastic film.
  • a non-conductive plastic fabric can be used, in the warp and weft individual conductive threads ( ⁇ 10 6 ohms) are woven, which have electrical contact with each other and are connected to the electrically conductive tab.
  • a non-conductive tape fabric made of plastic can be used, in the warp and weft individual conductive strips ( ⁇ 10 6 ohms) are woven, which have electrical contact with each other and are connected to the electrically conductive tab.
  • FIG. 1 essential parts of the transport and storage container are shown in an exploded view.
  • a cuboid stable outer container 10 with a stable frame structure 12 at the bottom is suitable to receive a cuboid inner container 14.
  • This inner container 14 is produced in a blow molding process and serves to receive filling material, generally a high-purity liquid, preferably a flammable liquid.
  • the closed top inner container 14 is made of stabilizer-free polyethylene, preferably high-purity HDPE, with a single-layered wall construction. The purity of this plastic is such that the inner container emits impurities of less than 100 ppt (parts per trillion, corresponding to 10 -12 ) to the contents.
  • the vertical side surfaces of the inner container ie its outer surface, is closely enveloped by an electrically dissipative plastic film 16, which is applied for example by gluing.
  • the ends of the plastic film 16 firmly attached to the vertical side surfaces of the cuboidal inner container 14 overlap.
  • a plastic film tab 18 is pulled upwardly and covers part of the top surface 20 of the inner container 14.
  • the tab 18 is integrally formed with the plastic film 16.
  • a separate plastic film tab 18 may be used that overlaps with the plastic film 16 so as to provide electrical connection between tab 18 and plastic film 16.
  • further tabs 18 may be provided on a plurality of side surfaces of the inner container 14 in order to cover an even larger part of the upper side 20 of the inner container 14.
  • In the top 20 there is an opening 22 for receiving a tube 24 for filling and emptying of the contents.
  • a cover or lid 26 comprising at least one layer electrically dissipative plastic serves to cover the outer container 10.
  • the electrically conductive tube 24 in an opening 28 can be fastened.
  • an electrical connection 11 may be present, which serves for grounding.
  • the cover 26 may have a three-layered construction, such as the outer container 10 explained below, or may consist only of a single layer of electrically dissipative plastic.
  • the outer container 10 has a three-layer wall structure with outer layers 30, 32 of electrically dissipative plastic, eg, HDPE enriched with electrical filler, and a foamed middle layer 34 of HDPE.
  • the inner container 14 is supported on the lower frame structure 12 and laterally on the side walls of the outer container 10. In this case, the plastic film 16 enveloping the lateral surface of the inner container 14 can touch the electrically dissipating outer layer 32 and thus produce an electrical contact.
  • the floor structure 12 rests on a pallet 36, which has the same structure as the outer container 10. This pallet 36 can serve over its electrically dissipating outer layers of grounding.
  • the outer layers 30, 32 of the outer container 10 typically have a conductivity of ⁇ 10 6 ohms.
  • the electrically dissipative plastic film 16 has an electrical conductivity of ⁇ 10 6 ohms.
  • FIG. 3 shows a cross section in the upper region of the inner container 14 and the lid 26 received inner container 14.
  • an elastic element 40 for example made of foam or sheet metal is arranged as an electrical connection element.
  • the elastic element 40 may be formed electrically insulating.
  • the elastic member 40 is disposed between the underside of the lid 26 and the tab 18 and when closing the lid 26 pushes the tab 18 against the top of the inner container 14. To make a secure electrical contact, the surface of the elastic member 40 is electrically conductive. For reasons of simplified handling, the tab 18 is not fixedly connected to the cover 26.
  • FIG. 5 shows an arrangement with a fastener 42 as an electrical connection element.
  • a fastener 42 as an electrical connection element.
  • the lid 26 is here made of single-walled electrically dissipative plastic and laterally overlaps the outer container 10.
  • the fastener 42 includes a threaded connection with bottom portion 44, threaded portion 46 and threaded nut 48.
  • the overlapping tabs 18 are clamped between bottom portion 44 and bottom 21 of the lid 26 and thus establish an electrical connection between the electrically dissipative material 16 and the cover 26.
  • FIG. 6 shows an embodiment with a fabric material 50 as electrically dissipative material.
  • the fabric material comprises woven polypropylene and contains electrostatically conductive threads according to standard IEC 61340-4-4 for type C.
  • the fabric material 50 is placed as a band around the outer surface of the inner container and fixed by means of sewn-on Velcro straps 52, 54.
  • Tabs 18 made of electrostatic material are sewn onto the fabric material 50.
  • In an enlarged Section Z are seen in warp and weft electrostatically conductive threads 56, 58 to see that have electrical contact with each other.
  • the inner container 14 has a volume of 50 to 5000 liters. As a product is chemically highly pure substance, for example, also flammable liquid.
  • electrostatic charges are dissipated and excluded the risk of ignitable gas discharge. This ensures an internationally required safety standard.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Buffer Packaging (AREA)
  • Packaging Frangible Articles (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Description

Die Erfindung betrifft einen Transport- und Lagerbehälter aus Kunststoff für ein Füllgut, mit einem Innenbehälter mit einem Aufnahmevolumen von 50 bis 5000 l zur Aufnahme des Füllgutes und mit einem oben offenen Außenbehälter, der den Innenbehälter aufnimmt und der mindestens eine Schicht aus elektrisch ableitfähigem Kunststoff enthält.The invention relates to a transport and storage container made of plastic for a filling material, with an inner container with a receiving volume of 50 to 5000 l for receiving the contents and with an open-topped outer container which receives the inner container and contains at least one layer of electrically dissipative plastic ,

Ein derartiger Behälter ist aus der DE 201 07 962 U1 bekannt. Zur Vermeidung elektrostatischer Aufladungen, die zu Gasentladungen führen können, wird dem Kunststoffmaterial des Innenbehälters ein leitfähiger Füllstoff zugemischt, so dass eine gewisse elektrische Leitfähigkeit und dadurch eine elektrisch antistatische, bzw. ladungsableitende Wirkung erreicht wird. Der Außenbehälter ist ebenfalls aus Kunststoff und mehrschichtig aufgebaut, wobei seine Innenschicht und seine Au-ßenschicht aus elektrisch ableitfähigem Kunststoff gebildet ist.Such a container is from the DE 201 07 962 U1 known. To avoid electrostatic charges, which can lead to gas discharges, a conductive filler is added to the plastic material of the inner container, so that a certain electrical conductivity and thus an electrically antistatic, or charge-discharging effect is achieved. The outer container is also made of plastic and multilayer, with its inner layer and its outer layer of electrically dissipative plastic is formed.

Für hochreines Füllgut, beispielsweise in der Chemieindustrie, muss auch das Kunststoffmaterial für den Innenbehälter eine sehr hohe Reinheit haben. Durch die Zumischung von elektrisch leitenden Füllstoffen und die Anwendung des Koextrusions-Blasformverfahrens kann jedoch nicht sichergestellt werden, dass Verunreinigungen über die Behälterwände an das Füllgut abgegeben werden. Außerdem ist die Herstellung mehrschichtiger Wandungen für den Innenbehälter im Blasformverfahren aufwendig.For high-purity filling material, for example in the chemical industry, the plastic material for the inner container must also have a very high purity. However, the addition of electrically conductive fillers and the use of the coextrusion blow molding process can not ensure that impurities are released via the container walls to the contents. In addition, the production of multilayer walls for the inner container in the blow molding process is complicated.

EP 0 893 362 A1 betrifft einen Transport- und Lagerbehälter für Flüssigkeiten. Ein Kunststoff-Innenbehälter umfasst eine gewebeartige Umhüllung aus einem elektrisch leitfähigen Material, das den Innenbehälter vollkommen oder teilweise umgibt, so dass elektrische Ladungen, die sich gegebenenfalls beim Befüllen und Entleeren des Transport- und Lagerbehälters auf der Oberfläche des Kunststoff-Innenbehälters bilden, über die Umhüllung, einen Außenmantel und ein Untergestell, das ebenfalls aus einem elektrisch leitfähigen Material besteht, in den Boden abgeleitet werden können. Der den Innenbehälter umgebende Außenmantel des Transport- und Lagerbehälters ist offen ausgeführt und besteht aus senkrechten und waagerechten Gitterstäben aus Metall. EP 0 893 362 A1 relates to a transport and storage container for liquids. A plastic inner container comprises a fabric-like sheath made of an electrically conductive material which completely or partially surrounds the inner container, so that electrical charges which may form on the surface of the plastic inner container during filling and emptying of the transport and storage container Enclosure, an outer shell and a base, which also consists of an electrically conductive material can be discharged into the ground. The surrounding the inner container outer shell of the transport and storage container is made open and consists of vertical and horizontal bars of metal.

Es ist Aufgabe der Erfindung, einen Transport- und Lagerbehälter aus Kunststoff für ein Füllgut anzugeben, der verunreinigungsfrei ist, hohe Sicherheitsstandards gewährleistet und wirtschaftlich herstellbar ist.It is an object of the invention to provide a transport and storage container made of plastic for a product, which is free of contamination, high safety standards and is economical to produce.

Diese Aufgabe wird durch die Kombination der Merkmale des Anspruchs 1 gelöst. Vorteilhafte Weiterbildungen sind in den abhängigen Ansprüchen angegeben.This object is achieved by the combination of the features of claim 1. Advantageous developments are specified in the dependent claims.

Gemäß der Erfindung hat der vorzugsweise im Blasformverfahren hergestellte Innenbehälter einen einschichtigen Wandaufbau und besteht vorzugsweise aus stabilisatorfreiem Polyethylen, insbesondere aus HDPE (High Density Polyethylen) hoher Reinheit. Um einen Schutz gegen elektrostatische Aufladungen zu erhalten, wird die äußere Mantelfläche, insbesondere die vertikalen Seitenflächen bei einem quaderförmigen Innenbehälter, mit einem elektrisch ableitfähigen flexiblen Material umhüllt. Mindestens eine elektrisch ableitfähige Lasche wird so angeordnet, dass sie zumindest einen Teil der Oberseite des Innenbehälters bedeckt, wobei die Lasche mit dem elektrisch ableitfähigen Material auf der Mantelfläche des Innenbehälters elektrisch verbunden ist. Auf diese Weise ist ein Großteil des Innenbehälters elektrisch abgeschirmt und es können sich keine lokalen elektrostatischen Aufladungen aufbauen, die zu einer elektrostatischen Gasentladung führen könnten.According to the invention, the inner container, which is preferably produced by the blow-molding process, has a single-layered wall structure and preferably consists of stabilizer-free polyethylene, in particular of HDPE (high density polyethylene) of high purity. In order to obtain protection against electrostatic charges, the outer circumferential surface, in particular the vertical side surfaces in a cuboid inner container, is enveloped with an electrically dissipative flexible material. At least one electrically dissipative tab is arranged so that it covers at least part of the top of the inner container, wherein the tab is electrically connected to the electrically dissipative material on the lateral surface of the inner container. In this way, much of the inner container is electrically shielded and can not build up local electrostatic charges that could lead to an electrostatic gas discharge.

Der Außenbehälter enthält mindestens eine Schicht aus elektrisch ableitfähigem Kunststoff, so dass auch die Unterseite des Innenbehälters, der aufgrund seines Eigengewichts auf dem Boden des Außenbehälters ruht, gut abgeschirmt ist. Die Lasche kann einstückig mit dem die Mantelfläche des Innenbehälters umhüllenden Material ausgebildet sein. Es ist auch möglich, die Lasche als separates Teil auszuführen. Vorzugsweise ist das Material der Lasche dasselbe wie das die Mantelfläche umhüllende Material. Gemäß einem bevorzugten Ausführungsbeispiel wird als ableitfähiges Material eine antistatische, elektrisch ableitfähige Kunststofffolie verwendet. Alternativ kann anstelle der umhüllenden Kunststofffolie ein nicht leitfähiges Kunststoffgewebe verwendet werden, in das in Kett- und Schussrichtung einzelne leitfähige Fäden (< 106 Ohm) eingewebt sind, die untereinander elektrischen Kontakt haben und mit der elektrisch ableitfähigen Lasche verbunden sind. Außerdem kann anstelle der umhüllenden Kunststofffolie ein nicht leitfähiges Bändchengewebe aus Kunststoff verwendet werden, in das in Kett- und Schussrichtung einzelne leitfähige Bändchen (< 106 Ohm) eingewebt sind, die untereinander elektrischen Kontakt haben und mit der elektrisch ableitfähigen Lasche verbunden sind.The outer container contains at least one layer of electrically dissipative plastic, so that the underside of the inner container, which rests on the floor of the outer container due to its own weight, is well shielded. The tab may be formed integrally with the material surrounding the lateral surface of the inner container. It is also possible to carry out the tab as a separate part. Preferably, the material of the tab is the same as the material enveloping the lateral surface. According to a preferred embodiment is as a dissipative material used an antistatic, electrically dissipative plastic film. Alternatively, instead of the enveloping plastic film, a non-conductive plastic fabric can be used, in the warp and weft individual conductive threads (<10 6 ohms) are woven, which have electrical contact with each other and are connected to the electrically conductive tab. In addition, instead of the enveloping plastic film, a non-conductive tape fabric made of plastic can be used, in the warp and weft individual conductive strips (<10 6 ohms) are woven, which have electrical contact with each other and are connected to the electrically conductive tab.

Ausführungsbeispiele der Erfindung werden nachfolgend anhand der Zeichnung erläutert. Darin zeigt:

Figur 1
einen Transport- und Lagerbehälter in einer Explosionsdarstellung,
Figur 2
einen Teilquerschnitt im unteren Bereich des Behälters,
Figur 3
die Anordnung eines elastischen Verbindungselements zwischen Oberseite des Innenbehälters und der elektrisch leitfähigen Folie,
Figur 4
die Anordnung des elastischen Verbindungselements zwischen Deckel und Kunststofffolie,
Figur 5
eine Anordnung mit einem Befestigungselement als Verbindungselement, und
Figur 6
ein elektrisch ableitfähiges Gewebematerial mit angenähten Laschen.
Embodiments of the invention are explained below with reference to the drawing. It shows:
FIG. 1
a transport and storage container in an exploded view,
FIG. 2
a partial cross section in the lower area of the container,
FIG. 3
the arrangement of an elastic connecting element between the upper side of the inner container and the electrically conductive foil,
FIG. 4
the arrangement of the elastic connecting element between the cover and the plastic film,
FIG. 5
an arrangement with a fastener as a connecting element, and
FIG. 6
an electrically dissipative fabric material with stitched tabs.

In Figur 1 sind wesentliche Teile des Transport- und Lagerbehälters in einer Explosionsdarstellung gezeigt. Ein quaderförmiger stabiler Außenbehälter 10 mit einer stabilen Rahmenstruktur 12 am Boden ist geeignet, einen quaderförmigen Innenbehälter 14 aufzunehmen. Dieser Innenbehälter 14 wird in einem Blasformverfahren hergestellt und dient zur Aufnahme von Füllgut, im Allgemeinen eine hochreine Flüssigkeit, vorzugsweise eine entflammbare Flüssigkeit. Der oben geschlossene Innenbehälter 14 besteht aus stabilisatorfreiem Polyethylen, vorzugsweise hochreinem HDPE, mit einem einschichtigen Wandaufbau. Die Reinheit dieses Kunststoffes ist derart, dass der Innenbehälter Verunreinigungen mit weniger als 100 ppt (parts per trillion, entsprechend 10-12) an das Füllgut abgibt. Die vertikalen Seitenflächen des Innenbehälters, d.h. seine Mantelfläche, ist von einer elektrisch ableitfähigen Kunststofffolie 16 eng umhüllt, die beispielsweise durch Kleben aufgebracht ist. Die Enden der an den vertikalen Seitenflächen des quaderförmigen Innenbehälters 14 fest anliegenden Kunststofffolie 16 überlappen sich. Auf einer Seite ist eine Kunststofffolien-Lasche 18 nach oben gezogen und bedeckt einen Teil der Oberseite 20 des Innenbehälters 14. Wie hier dargestellt, ist die Lasche 18 einstückig mit der Kunststofffolie 16 ausgebildet. Es kann jedoch auch eine separate Kunststofffolien-Lasche 18 verwendet werden, die sich mit der Kunststofffolie 16 überlappt, um so eine elektrische Verbindung zwischen Lasche 18 und Kunststofffolie 16 herzustellen. Ebenso können an mehreren Seitenflächen des Innenbehälters 14 weitere Laschen 18 vorgesehen sein, um einen noch größeren Teil der Oberseite 20 des Innenbehälters 14 zu bedecken. In der Oberseite 20 ist eine Öffnung 22 für die Aufnahme eines Rohrs 24 zum Befüllen und Entleeren für das Füllgut vorhanden.In FIG. 1 essential parts of the transport and storage container are shown in an exploded view. A cuboid stable outer container 10 with a stable frame structure 12 at the bottom is suitable to receive a cuboid inner container 14. This inner container 14 is produced in a blow molding process and serves to receive filling material, generally a high-purity liquid, preferably a flammable liquid. The closed top inner container 14 is made of stabilizer-free polyethylene, preferably high-purity HDPE, with a single-layered wall construction. The purity of this plastic is such that the inner container emits impurities of less than 100 ppt (parts per trillion, corresponding to 10 -12 ) to the contents. The vertical side surfaces of the inner container, ie its outer surface, is closely enveloped by an electrically dissipative plastic film 16, which is applied for example by gluing. The ends of the plastic film 16 firmly attached to the vertical side surfaces of the cuboidal inner container 14 overlap. On one side, a plastic film tab 18 is pulled upwardly and covers part of the top surface 20 of the inner container 14. As shown, the tab 18 is integrally formed with the plastic film 16. However, a separate plastic film tab 18 may be used that overlaps with the plastic film 16 so as to provide electrical connection between tab 18 and plastic film 16. Likewise, further tabs 18 may be provided on a plurality of side surfaces of the inner container 14 in order to cover an even larger part of the upper side 20 of the inner container 14. In the top 20 there is an opening 22 for receiving a tube 24 for filling and emptying of the contents.

Eine Abdeckung oder ein Deckel 26 umfassend mindestens eine Schicht aus elektrisch ableitfähigem Kunststoff dient zur Abdeckung des Außenbehälters 10. In diesem Deckel 26 ist das elektrisch leitfähige Rohr 24 in einer Öffnung 28 befestigbar. An der Außenseite des Außenbehälters 10 kann ein elektrischer Anschluss 11 vorhanden sein, der zur Erdung dient. Der Deckel 26 kann einen dreischichtigen Aufbau wie der weiter unten erläuterte Außenbehälter 10 haben oder auch nur aus einer einzigen Schicht aus elektrisch ableitbaren Kunststoff bestehen.A cover or lid 26 comprising at least one layer electrically dissipative plastic serves to cover the outer container 10. In this cover 26, the electrically conductive tube 24 in an opening 28 can be fastened. On the outside of the outer container 10, an electrical connection 11 may be present, which serves for grounding. The cover 26 may have a three-layered construction, such as the outer container 10 explained below, or may consist only of a single layer of electrically dissipative plastic.

Figur 2 zeigt einen Teilquerschnitt in einem unteren Bereich des vom Außenbehälter 10 aufgenommenen Innenbehälters 14. Der Außenbehälter 10 hat einen dreischichtigen Wandaufbau mit äußeren Schichten 30, 32 aus elektrisch ableitfähigem Kunststoff, z.B. mit elektrischem Füllstoff angereichertem HDPE, und einer geschäumten Mittelschicht 34 aus HDPE. Der Innenbehälter 14 stützt sich auf der unteren Rahmenstruktur 12 und seitlich an den Seitenwänden des Außenbehälters 10 ab. Die die Mantelfläche des Innenbehälters 14 umhüllende Kunststofffolie 16 kann hierbei die elektrisch ableitende äußere Schicht 32 berühren und so einen elektrischen Kontakt herstellen. Die Bodenstruktur 12 ruht auf einer Palette 36, die den gleichen Aufbau hat wie der Außenbehälter 10. Diese Palette 36 kann über ihre elektrisch ableitenden Außenschichten der Erdung dienen. FIG. 2 The outer container 10 has a three-layer wall structure with outer layers 30, 32 of electrically dissipative plastic, eg, HDPE enriched with electrical filler, and a foamed middle layer 34 of HDPE. The inner container 14 is supported on the lower frame structure 12 and laterally on the side walls of the outer container 10. In this case, the plastic film 16 enveloping the lateral surface of the inner container 14 can touch the electrically dissipating outer layer 32 and thus produce an electrical contact. The floor structure 12 rests on a pallet 36, which has the same structure as the outer container 10. This pallet 36 can serve over its electrically dissipating outer layers of grounding.

Die Außenschichten 30, 32 des Außenbehälters 10 haben typischerweise eine Leitfähigkeit von < 106 Ohm. Die elektrisch ableitfähige Kunststofffolie 16 hat eine elektrische Leitfähigkeit von < 106 Ohm.The outer layers 30, 32 of the outer container 10 typically have a conductivity of <10 6 ohms. The electrically dissipative plastic film 16 has an electrical conductivity of <10 6 ohms.

Figur 3 zeigt einen Querschnitt im oberen Bereich des vom Außenbehälter 10 und dem Deckel 26 aufgenommenen Innenbehälters 14. Zwischen der Oberseite des Innenbehälters 14 und der Lasche 18 ist als elektrisches Verbindungselement ein elastisches Element 40, beispielsweise aus Schaumstoff oder Blech angeordnet. Beim Verschließen des Außenbehälters 10 mit dem Deckel 26 wird die Lasche 18 zwischen Oberseite des elastischen Elements 40 und Unterseite des Deckels 26 mit elastischem Druck eingeklemmt, so dass eine elektrische Verbindung zur elektrisch leitfähigen Kunststoffschicht des Deckels 26 hergestellt wird. Das elastische Element 40 kann elektrisch isolierend ausgebildet sein. FIG. 3 shows a cross section in the upper region of the inner container 14 and the lid 26 received inner container 14. Between the top of the inner container 14 and the tab 18 is an elastic element 40, for example made of foam or sheet metal is arranged as an electrical connection element. When closing the outer container 10 with the lid 26, the tab 18 clamped between the top of the elastic member 40 and the bottom of the lid 26 with elastic pressure, so that an electrical connection to the electrically conductive plastic layer of the lid 26 is made. The elastic element 40 may be formed electrically insulating.

In Figur 4 ist eine Variante hierzu angegeben. Das elastische Element 40 ist zwischen der Unterseite des Deckels 26 und der Lasche 18 angeordnet und drückt beim Schließen des Deckels 26 die Lasche 18 gegen die Oberseite des Innenbehälters 14. Um einen sicheren elektrischen Kontakt herzustellen, ist die Oberfläche des elastischen Elements 40 elektrisch leitfähig. Aus Gründen eines vereinfachten Handlings wird die Lasche 18 nicht fest mit dem Deckel 26 verbunden.In FIG. 4 a variant is given here. The elastic member 40 is disposed between the underside of the lid 26 and the tab 18 and when closing the lid 26 pushes the tab 18 against the top of the inner container 14. To make a secure electrical contact, the surface of the elastic member 40 is electrically conductive. For reasons of simplified handling, the tab 18 is not fixedly connected to the cover 26.

Figur 5 zeigt eine Anordnung mit einem Befestigungselement 42 als elektrisches Verbindungselement. Bei diesem Beispiel sind zwei einander überlappende Laschen 18 angeordnet. Der Deckel 26 ist hier einwandig aus elektrisch ableitfähigem Kunststoff gefertigt und überlappt seitlich den Außenbehälter 10. Das Befestigungselement 42 umfasst eine Schraubverbindung mit Bodenteil 44, Gewindeteil 46 und Gewindemutter 48. Die überlappenden Laschen 18 werden zwischen Bodenteil 44 und Unterseite 21 des Deckels 26 eingeklemmt und stellen so eine elektrische Verbindung zwischen dem elektrisch ableitfähigen Material 16 und dem Deckel 26 her. FIG. 5 shows an arrangement with a fastener 42 as an electrical connection element. In this example, two overlapping tabs 18 are arranged. The lid 26 is here made of single-walled electrically dissipative plastic and laterally overlaps the outer container 10. The fastener 42 includes a threaded connection with bottom portion 44, threaded portion 46 and threaded nut 48. The overlapping tabs 18 are clamped between bottom portion 44 and bottom 21 of the lid 26 and thus establish an electrical connection between the electrically dissipative material 16 and the cover 26.

Figur 6 zeigt ein Ausführungsbeispiel mit einem Gewebematerial 50 als elektrisch ableitfähiges Material. Das Gewebematerial umfasst gewebtes Polypropylen und enthält elektrostatisch leitfähige Fäden gemäß Norm IEC 61340-4-4 für Typ C. Das Gewebematerial 50 wird als Banderole um die Mantelfläche des Innenbehälters gelegt und mittels aufgenähter Klettbänder 52, 54 fixiert. Laschen 18 aus elektrostatischem Material sind auf das Gewebematerial 50 aufgenäht. In einem vergrößerten Ausschnitt Z sind in Kett- und Schussrichtung eingearbeitete elektrostatisch leitfähige Fäden 56, 58 zu sehen, die miteinander elektrischen Kontakt haben. Der Innenbehälter 14 weist ein Volumen von 50 bis 5000 Litern auf. Als Füllgut eignet sich chemisch hochreiner Stoff, beispielsweise auch entflammbare Flüssigkeit. Durch die vorgenommene elektrische Abschirmung und einer elektrischen Erdung des gesamten Behälters über den elektrischen Anschluss 11 oder der Palette 36 werden elektrostatische Aufladungen abgeführt und die Gefahr einer zündfähigen Gasentladung ausgeschlossen. Auf diese Weise wird ein international geforderter Sicherheitsstandard gewährleistet. FIG. 6 shows an embodiment with a fabric material 50 as electrically dissipative material. The fabric material comprises woven polypropylene and contains electrostatically conductive threads according to standard IEC 61340-4-4 for type C. The fabric material 50 is placed as a band around the outer surface of the inner container and fixed by means of sewn-on Velcro straps 52, 54. Tabs 18 made of electrostatic material are sewn onto the fabric material 50. In an enlarged Section Z are seen in warp and weft electrostatically conductive threads 56, 58 to see that have electrical contact with each other. The inner container 14 has a volume of 50 to 5000 liters. As a product is chemically highly pure substance, for example, also flammable liquid. By the electrical shielding and electrical grounding of the entire container via the electrical connection 11 or the pallet 36 electrostatic charges are dissipated and excluded the risk of ignitable gas discharge. This ensures an internationally required safety standard.

Am Deckel 26 und/oder am Innenbehälter 14 können weitere Elemente, wie Einfüllstutzen, Dichtung, Überlaufrinne, Entleerrohr etc. vorhanden sein, wie dies beispielsweise in der weiter oben erwähnten DE 20107 962 U1 beschrieben ist. Durch die Verwendung eines einschichtigen Innenbehälters kann dieser wirtschaftlich hergestellt werden und die Gefahr von Verunreinigung durch das Material des Innenbehälters kann verringert werden. Außen- und Innenbehälter können verschiedene Formen haben, z.B. auch eine Fassform.On the lid 26 and / or on the inner container 14 further elements, such as filler neck, seal, overflow channel, emptying pipe, etc. may be present, as for example in the above-mentioned DE 20107 962 U1 is described. By using a single-layer inner container, it can be manufactured economically and the risk of contamination by the material of the inner container can be reduced. Outer and inner containers can have different shapes, eg a barrel shape.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1010
Außenbehälterouter container
1111
Elektrischer AnschlussElectrical connection
1212
Rahmenstrukturframe structure
1414
Innenbehälterinner container
1616
KunststofffoliePlastic film
1818
Lascheflap
2020
Oberseite des InnenbehältersTop of the inner container
2121
Unterseite des DeckelsBottom of the lid
2222
Öffnungopening
2424
Rohrpipe
2626
Deckelcover
30, 3230, 32
Äußere Schichten des AußenbehältersOuter layers of the outer container
3434
Mittelschichtmiddle class
3636
Palettepalette
4040
Elastisches ElementElastic element
4242
Befestigungselementfastener
4444
Bodenteilthe bottom part
4646
Gewindeteilthreaded part
4848
Muttermother
5050
Gewebematerialfabric material
52, 5452, 54
KlettbänderVelcro
56, 5856, 58
elektrisch leitfähige Fädenelectrically conductive threads

Claims (12)

  1. A plastic transport and storage container for a filling material,
    comprising an inner container (14) with a capacity of 50 to 5000 l for receiving the filling material, which is made of plastic material,
    an outer container (10) which is open at the top, accommodates the inner container (14) and includes at least one layer of electrically conductive plastic material,
    wherein a lid (26) comprising at least one layer of electrically conductive plastic material covers the outer container (10),
    characterized in that the inner container (14) has a single-layer wall structure, and
    the outer circumferential surface of the inner container (14), which is closed at the top, is surrounded by an electrically conductive flexible material (50, 16),
    and the transport and storage container comprises at least one electrically conductive flap (18) which covers at least a part of the upper side of the inner container (14), the flap (18) being electrically connected to the electrically conductive material (16) on the circumferential surface of the inner container (14),
    wherein between the upper side of the inner container (14) and the lid (26) a connecting element (40, 42) is arranged such that the flap (18) is connected to the electrically conductive layer of the lid (26) in an electrically conductive manner in the closed state of the outer container (10).
  2. The transport and storage container according to claim 1, characterized in that the inner container (14) is made of polyethylene and is manufactured by blow molding.
  3. The transport and storage container according to one of the preceding claims, characterized in that the electrically conductive material (16, 50) is adhered to the circumferential surface of the inner container (14).
  4. The transport and storage container according to one of the preceding claims, characterized in that the electrically conductive flexible material is an electrically conductive plastic foil (16).
  5. The transport and storage container according to claim 4, characterized in that the electrically conductive plastic foil (16) has an electrical conductivity of <106 ohm.
  6. The transport and storage container according to one of the preceding claims 1 to 3, characterized in that electrically conductive woven fabric (50) is used as an electrically conductive material, which comprises non-conductive plastic fabric or plastic strips, into which electrically conductive threads (56, 58) or strips are woven which are in electrical contact with each other.
  7. The transport and storage container according to one of the preceding claims, characterized in that the outer container (10) is made of a multi-layer plastic material, the outer layers (30, 32) of which are electrically conductive.
  8. The transport and storage container according to one of the preceding claims, characterized in that the outer layers (30, 32) of the outer container (10) have an electrical conductivity of < 106 ohm.
  9. The transport and storage container according to one of the preceding claims, characterized in that the inner container (14) receives an electrically conductive dip tube for filling and emptying for the filling material.
  10. The transport and storage container according to one of the preceding claims, characterized in that the bottom of the outer container (10) has an electrically conductive and stable frame structure (12).
  11. The transport and storage container according to one of the preceding claims, characterized in that the flap (18) is made of the same material as the material (16, 50) surrounding the circumferential surface.
  12. The transport and storage container according to one of the preceding claims, characterized in that the outer container (10) comprises an electrical connection (11) for an electrical earth connection.
EP16829094.8A 2016-01-08 2016-12-29 Transport and storage container of plastic for a filling material Active EP3400180B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16829094T PL3400180T3 (en) 2016-01-08 2016-12-29 Transport and storage container of plastic for a filling material

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202016100050.5U DE202016100050U1 (en) 2016-01-08 2016-01-08 Transport and storage containers made of plastic for a filling material
PCT/EP2016/082821 WO2017118589A1 (en) 2016-01-08 2016-12-29 Transport and storage container of plastic for a filling material

Publications (2)

Publication Number Publication Date
EP3400180A1 EP3400180A1 (en) 2018-11-14
EP3400180B1 true EP3400180B1 (en) 2019-10-16

Family

ID=57860795

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16829094.8A Active EP3400180B1 (en) 2016-01-08 2016-12-29 Transport and storage container of plastic for a filling material

Country Status (12)

Country Link
US (1) US11008161B2 (en)
EP (1) EP3400180B1 (en)
JP (1) JP6993336B2 (en)
KR (1) KR20180101319A (en)
CN (1) CN108137209B (en)
AU (1) AU2016384357B2 (en)
BR (1) BR112018006382B1 (en)
DE (1) DE202016100050U1 (en)
ES (1) ES2752194T3 (en)
PL (1) PL3400180T3 (en)
TW (1) TWI714689B (en)
WO (1) WO2017118589A1 (en)

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SE543875C2 (en) * 2020-02-04 2021-08-17 Roxtec Ab Transit for cables or pipes through a partition

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DE3001099A1 (en) * 1980-01-14 1981-07-23 Seitz-Werke Gmbh, 6550 Bad Kreuznach FILLING ELEMENT FOR COUNTERPRESSURE FILLING MACHINES
DE9417151U1 (en) * 1994-10-25 1995-12-14 Amoco Corp., Chicago, Ill. Electrically conductive multilayer tape
JPH09286490A (en) * 1996-04-19 1997-11-04 Nichias Corp Structure of tank with corrosion-resistant resin lining
DE19720931C2 (en) * 1997-05-20 1999-12-02 Protechna Sa Transport and storage containers for liquids
DE29724198U1 (en) 1997-07-23 2000-04-13 Protechna S.A., Freiburg/Fribourg Transport and storage containers for liquids
DE20107962U1 (en) 2001-05-11 2002-06-20 Honeywell Speciality Chemicals Seelze GmbH, 30926 Seelze Transport and / or storage device
DE10161693A1 (en) * 2001-12-15 2003-07-03 Protechna Sa Transport pallet for hazardous fluid has layer of heat and fire insulation between plastic lining and outer wire frame
DE20206652U1 (en) 2002-04-25 2002-08-08 Protechna S.A., Freiburg/Fribourg Transport and storage containers for liquids
DE10242956B4 (en) 2002-09-17 2004-07-15 Protechna S.A. Transport and storage container for liquids and method for manufacturing the plastic inner container of the transport and storage container
DE10313481B4 (en) * 2003-03-26 2005-07-07 Protechna S.A. Transport and storage container for liquids
EP1722614B1 (en) * 2005-05-13 2007-12-12 Sefar AG Wiring board and method of manufacturing the same
DE102010039328A1 (en) * 2010-08-13 2012-02-16 Protechna S.A. Removal fitting for a transport and storage container for liquids as well as transport and storage containers with such a removal fitting
US8966997B2 (en) * 2011-10-12 2015-03-03 Stryker Corporation Pressure sensing mat
WO2016136269A1 (en) * 2015-02-26 2016-09-01 凸版印刷株式会社 Packaging container
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Also Published As

Publication number Publication date
BR112018006382A2 (en) 2018-10-09
WO2017118589A1 (en) 2017-07-13
JP6993336B2 (en) 2022-01-13
JP2019501836A (en) 2019-01-24
AU2016384357B2 (en) 2021-10-21
US11008161B2 (en) 2021-05-18
EP3400180A1 (en) 2018-11-14
PL3400180T3 (en) 2020-04-30
US20190023486A1 (en) 2019-01-24
ES2752194T3 (en) 2020-04-03
TWI714689B (en) 2021-01-01
DE202016100050U1 (en) 2017-04-11
BR112018006382B1 (en) 2022-08-23
AU2016384357A1 (en) 2018-04-12
KR20180101319A (en) 2018-09-12
CN108137209B (en) 2019-12-24
CN108137209A (en) 2018-06-08
TW201725159A (en) 2017-07-16

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