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EP0333544A1 - Drum for the transport and storage of chemical products - Google Patents

Drum for the transport and storage of chemical products Download PDF

Info

Publication number
EP0333544A1
EP0333544A1 EP89400573A EP89400573A EP0333544A1 EP 0333544 A1 EP0333544 A1 EP 0333544A1 EP 89400573 A EP89400573 A EP 89400573A EP 89400573 A EP89400573 A EP 89400573A EP 0333544 A1 EP0333544 A1 EP 0333544A1
Authority
EP
European Patent Office
Prior art keywords
envelope
outer casing
elements
barrel
barrel according
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Withdrawn
Application number
EP89400573A
Other languages
German (de)
French (fr)
Inventor
Philippe Portat
Michel Gourat
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Plastic Omnium SE
Original Assignee
Plastic Omnium SE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Plastic Omnium SE filed Critical Plastic Omnium SE
Publication of EP0333544A1 publication Critical patent/EP0333544A1/en
Withdrawn legal-status Critical Current

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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
    • B65D11/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
    • B65D11/16—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material with double walls
    • 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
    • B65D11/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
    • B65D11/02—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material of curved cross-section
    • B65D11/06—Drums or barrels

Definitions

  • the present invention relates to a drum for the transport and storage of chemicals, in particular very high purity chemicals such as those intended for the semiconductor industry.
  • Drums compatible with this use have recently been developed and comprising an internal envelope of fluorinated plastic material in particular PFA (perfluoroalkoxy copolymer) and an external envelope having an appreciably cylindrical exterior shape and an interior shape substantially matching the interior envelope.
  • PFA perfluoroalkoxy copolymer
  • the present invention proposes to produce a barrel which, while having an outer casing consisting of two removable parts, avoids the drawbacks of previous barrels.
  • the barrel according to the invention is essentially characterized by the fact that the outer casing consists of two superposed elements, one upper, the other lower, fitted, of substantially circular section, joined by screwing.
  • the lower outer casing element has at its upper end an annular flange which has an inner cylindrical surface provided with a thread capable of cooperating with a thread produced on an external cylindrical surface of an annular flange produced at the lower end of the upper outer casing member.
  • the inner envelope is made of PFA by rotational molding.
  • the outer envelope is preferably a double walled polyethylene envelope filled with polyethylene foam.
  • the barrel according to the invention comprises an outer casing generally designated by 1 and comprising an upper element 2 and a lower element 3, the two elements 2 and 3 have a generally cylindrical shape of circular section and comprise an outer wall provided with horizontal ribs of stiffening 4.
  • the upper element 2 has an annular flange 5 projecting from its lower part 5 provided with an external thread 6 and the external wall lower element 3 has an annular flange 7 projecting from its upper end provided with an internal thread 8 .
  • the threads 6 and 8 produced on the cylindrical walls opposite the flanges 5 and 7 allow assembly by screwing of the elements 2 and 3 constituting the outer casing.
  • the elements 2 and 3 have an inner wall conforming to the shape of an inner envelope 9 made of rotomolded PFA provided at its upper part with a plugging device, the upper element 2 of the outer envelope comprising, for access to the closure device 10, a recess 11 capable of being closed by a shutter 12.
  • the elements 2, 3 of the outer casing are in contact not only along the facing cylindrical walls 13 and 14 respectively, in which the threads 6 and 8 are produced, but also along plane spans axially offset and perpendicular to the generatrices. of the barrel, and produced between the threads 6, 8 and the outer and respectively inner surfaces of the outer shell 2, 3.
  • the elements 2 and 3 of the outer shell are in mutual support along spans 15, 16, and at the upper end of the walls 13, 14 along spans 17, 18 and respectively 19, 20, the spans 17, 19 and respectively 18, 20 being offset in height and separated by cylindrical bearing surfaces in mutual support 21 and 22.
  • an easily removable outer envelope has been produced while ensuring excellent sealing since in the event of a possible leak, in particular at the level of the closure device, or of the wall of the envelope inside, the products remain contained inside the lower element 3 of the inner envelope without being able to escape towards the outside as was the case previously.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Buffer Packaging (AREA)
  • Packages (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)

Abstract

The drum comprises an interior envelope made from plastic material containing fluorine, in particular PFA, and an exterior envelope having an exterior shape which is substantially cylindrical, and an interior shape substantially following the interior envelope, the said exterior envelope being constituted from two envelope elements joined in a separable manner. <??>The exterior envelope (1) is constituted from two superimposed elements, fitted together (2, 3), having a substantially circular cross-section and joined by screwing.

Description

La présente invention est relative à un fût pour le transport et le stockage de produits chimiques, notamment de produits chimiques de très haute pureté tels que ceux destinés a l'industrie des semi-conducteurs.The present invention relates to a drum for the transport and storage of chemicals, in particular very high purity chemicals such as those intended for the semiconductor industry.

On a récemment développé des fûts compatibles avec cette utilisation et comportant une enveloppe intérieure en matière plastique fluorée en particulier en PFA (copolymère perfluoroalkoxy) et une enveloppe extérieure présentant une forme extérieure sensiblement cylindrique et une forme intérieure épousant sensiblement l'enveloppe intérieure.Drums compatible with this use have recently been developed and comprising an internal envelope of fluorinated plastic material in particular PFA (perfluoroalkoxy copolymer) and an external envelope having an appreciably cylindrical exterior shape and an interior shape substantially matching the interior envelope.

Il a déjà été proposé de réaliser l'enveloppe extérieure en matière plastique, notamment en polyéthylène, cette enveloppe extérieure étant en outre réalisée par assemblage de deux coquilles de section semi-circulaire réunies selon un plan vertical, les deux coquilles étant maintenues assemblées par des sangles ou analogues.It has already been proposed to make the outer casing of plastic, in particular polyethylene, this outer casing being further produced by assembling two shells of semi-circular section joined together in a vertical plane, the two shells being held together by straps or the like.

La présence d'un plan de joint vertical dans l'enveloppe extérieure présente l'inconvénient qu'en cas de fuites au niveau de l'enveloppe intérieure ou de son dispositif de bouchage les produits contenus risquent de s'échapper vers l'extérieur.The presence of a vertical joint plane in the outer casing has the disadvantage that in the event of leaks at the level of the inner casing or of its closure device, the products contained may escape towards the outside.

La présente invention se propose de réaliser un fût qui, tout en présentant une enveloppe extérieure constituée de deux parties démontables, évite les inconvénients des fûts antérieurs.The present invention proposes to produce a barrel which, while having an outer casing consisting of two removable parts, avoids the drawbacks of previous barrels.

Le fût selon l'invention se caractérise essentiellement par le fait que l'enveloppe extérieure est constituée de deux éléments superposés, l'un supérieur, l'autre inférieur, emboîtés, de section sensiblement circulaire, réunis par vissage.The barrel according to the invention is essentially characterized by the fact that the outer casing consists of two superposed elements, one upper, the other lower, fitted, of substantially circular section, joined by screwing.

De préférence l'élément inférieur d'enveloppe extérieure comporte à son extrémité supérieure un flasque annulaire qui présente une portée cylindrique intérieure munie d'un filetage susceptible de coopérer avec un filetage réalisé sur une portée cylindrique extérieure d'un flasque annulaire réalisé à l'extrémité inférieure de l'élément supérieur d'enveloppe extérieure.Preferably the lower outer casing element has at its upper end an annular flange which has an inner cylindrical surface provided with a thread capable of cooperating with a thread produced on an external cylindrical surface of an annular flange produced at the lower end of the upper outer casing member.

Dans un mode de réalisation préféré l'enveloppe intérieure est réalisée en PFA par rotomoulage. L'enveloppe extérieure est de préférence une enveloppe à double paroi en polyéthylène garnie d'une mousse de polyéthylène.In a preferred embodiment, the inner envelope is made of PFA by rotational molding. The outer envelope is preferably a double walled polyethylene envelope filled with polyethylene foam.

Dans le but de mieux faire comprendre l'invention on va maintenant en décrire un exemple de réalisation nullement limitatif en se référant au dessin annexé dans lequel :

  • - la figure 1 est une vue en élévation du fût selon l'invention,
  • - la figure 2 en est une coupe axiale, et
  • - la figure 3 illustre schématiquement de manière éclatée l'enveloppe extérieure en position désassemblée.
In order to better understand the invention, we will now describe an exemplary embodiment which is in no way limitative, with reference to the appended drawing in which:
  • FIG. 1 is an elevation view of the barrel according to the invention,
  • FIG. 2 is an axial section thereof, and
  • - Figure 3 schematically illustrates an exploded outer shell in the disassembled position.

Le fût selon l'invention comporte une enveloppe extérieure désignée globalement par 1 et comportant un élément supérieur 2 et un élément inférieur 3, les deux éléments 2 et 3 présentent une forme généralement cylindrique de section circulaire et comportent une paroi extérieure munie de nervures horizontales de rigidification 4.The barrel according to the invention comprises an outer casing generally designated by 1 and comprising an upper element 2 and a lower element 3, the two elements 2 and 3 have a generally cylindrical shape of circular section and comprise an outer wall provided with horizontal ribs of stiffening 4.

L'élément supérieur 2 comporte en saillie de sa partie inférieure un flasque annulaire 5 pourvu d'un filetage extérieur 6 et l'élément inférieur 3 de paroi extérieure comporte en saillie de son extrémité supérieure un flasque annulaire 7 pourvu d'un filetage intérieur 8.The upper element 2 has an annular flange 5 projecting from its lower part 5 provided with an external thread 6 and the external wall lower element 3 has an annular flange 7 projecting from its upper end provided with an internal thread 8 .

Les filetages 6 et 8 réalisés sur les parois cylindriques en regard des flasques 5 et 7 permettent un assemblage par vissage des éléments 2 et 3 constituant l'enveloppe extérieure.The threads 6 and 8 produced on the cylindrical walls opposite the flanges 5 and 7 allow assembly by screwing of the elements 2 and 3 constituting the outer casing.

Comme on le voit en particulier sur la figure 2, les éléments 2 et 3 présentent une paroi intérieure épousant la forme d'une enveloppe intérieure 9 en PFA rotomoulé munie à sa partie supérieure d'un dispositif de bouchage, l'élément supérieur 2 de l'enveloppe extérieure comportant pour l'accès au dispositif de bouchage 10, un évidement 11, susceptible d'être fermé par un obturateur 12.As can be seen in particular in FIG. 2, the elements 2 and 3 have an inner wall conforming to the shape of an inner envelope 9 made of rotomolded PFA provided at its upper part with a plugging device, the upper element 2 of the outer envelope comprising, for access to the closure device 10, a recess 11 capable of being closed by a shutter 12.

De plus les éléments 2, 3 d'enveloppe extérieure sont mutuellement en contact non seulement le long des parois cylindriques en regard 13 et respectivement 14 dans lesquels sont réalisés les filetages 6 et 8 mais également le long de portées planes décalées axialement et perpendiculaires aux génératrices du fût, et réalisés entre les filetages 6, 8 et les surfaces extérieure, et respectivement intérieure, de l'enveloppe extérieure 2, 3. Ainsi à l'extrémité inférieure des parois 13 et 14 les éléments 2 et 3 de l'enveloppe extérieure sont en appui mutuel le long de portées 15, 16, et à l'extrémité supérieure des parois 13, 14 le long de portées 17, 18 et respectivement 19, 20, les portées 17, 19 et respectivement 18, 20 étant décalées en hauteur et séparées par des portées cylindriques en appui mutuel 21 et 22.In addition, the elements 2, 3 of the outer casing are in contact not only along the facing cylindrical walls 13 and 14 respectively, in which the threads 6 and 8 are produced, but also along plane spans axially offset and perpendicular to the generatrices. of the barrel, and produced between the threads 6, 8 and the outer and respectively inner surfaces of the outer shell 2, 3. Thus at the lower end of the walls 13 and 14 the elements 2 and 3 of the outer shell are in mutual support along spans 15, 16, and at the upper end of the walls 13, 14 along spans 17, 18 and respectively 19, 20, the spans 17, 19 and respectively 18, 20 being offset in height and separated by cylindrical bearing surfaces in mutual support 21 and 22.

Ces différentes portées confèrent à la surface de contact entre les éléments 2, 3 de part et d'autre des filetages 6, 8 une configuration complexe réalisant dans l'épaisseur de l'enveloppe extérieure un trajet en labyrinthe pour un produit qui s'échapperait accidentellement à la suite d'un endommagement de l'enveloppe intérieure 9.These different spans give the contact surface between the elements 2, 3 on either side of the threads 6, 8 a complex configuration achieving in the thickness of the outer envelope a labyrinth path for a product which would escape accidentally due to damage to the inner casing 9.

On comprend que, grâce à l'invention, on a réalisé une enveloppe extérieure facilement démontable tout en assurant une excellente étanchéité puisque dans le cas d'une fuite éventuelle, notamment au niveau du dispositif de bouchage, ou de la paroi de l'enveloppe intérieure, les produits restent contenus à l'intérieur de l'élément inférieur 3 de l'enveloppe intérieure sans pouvoir s'échapper vers l'extérieur comme cela était le cas antérieurement.It is understood that, thanks to the invention, an easily removable outer envelope has been produced while ensuring excellent sealing since in the event of a possible leak, in particular at the level of the closure device, or of the wall of the envelope inside, the products remain contained inside the lower element 3 of the inner envelope without being able to escape towards the outside as was the case previously.

Bien que l'invention ait été décrite en liaison avec un mode de réalisation particulier elle n'y est nullement limitée et on peut lui apporter de nombreuses variantes et modifications sans pour autant sortir ni de son cadre ni de son esprit.Although the invention has been described in connection with a particular embodiment, it is in no way limited thereto and many variations and modifications can be made to it without departing from its scope or its spirit.

Claims (5)

1. Fût pour le transport et le stockage de produits chimiques, comportant une enveloppe intérieure en matière plastique fluorée, en particulier en PFA, et une enveloppe extérieure présentant une forme extérieure sensiblement cylindrique, et une forme intérieure épousant sensiblement l'enveloppe intérieure, ladite enveloppe extérieure étant constituée de deux éléments d'enveloppe réunis de manière séparable, caractérisé par le fait que l'enveloppe extérieure (1) est constituée de deux éléments superposés, emboîtés, (2,3), de section sensiblement circulaire, réunis par vissage.1. Barrel for the transport and storage of chemicals, comprising an inner envelope of fluorinated plastic, in particular PFA, and an outer envelope having an appreciably cylindrical exterior shape, and an interior shape substantially matching the interior envelope, said outer casing consisting of two casing elements joined in a separable manner, characterized in that the outer casing (1) consists of two superimposed, nested elements (2, 3), of substantially circular section, joined by screwing . 2. Fût selon la revendication 1, caractérisé par le fait que l'élément inférieur d'enveloppe extérieure (3) présente à son extrémité supérieure un flasque annulaire (7) muni d'un filetage intérieur (8) susceptible de coopérer avec un filetage extérieur (6) réalisé sur un flasque annulaire (5) réalisé à l'extrémité inférieure de l'élément supérieur d'enveloppe extérieure (2).2. Barrel according to claim 1, characterized in that the lower outer casing element (3) has at its upper end an annular flange (7) provided with an internal thread (8) capable of cooperating with a thread outer (6) formed on an annular flange (5) formed at the lower end of the upper outer casing element (2). 3. Fût selon la revendication 2 caractérisé par le fait que les deux éléments (2,3) d'enveloppe extérieure comportent dans leur épaisseur de part et d'autre des portées cylindriques en regard (13, 14) des flasques annulaires (5, 7) pourvus des filetages (6, 8) des portées planes décalées (15, 16 ; 17, 18, 19, 20) perpendiculaires aux génératrices du fût.3. Barrel according to claim 2 characterized in that the two elements (2,3) of the outer casing have in their thickness on either side of the opposite cylindrical bearing surfaces (13, 14) annular flanges (5, 7) provided with threads (6, 8) of the offset planar bearings (15, 16; 17, 18, 19, 20) perpendicular to the generatrices of the barrel. 4. Fût selon l'une quelconque des revendications 1 à 3, caractérisé par le fait que l'enveloppe intérieure (9) est réalisée en PFA par rotomoulage.4. Barrel according to any one of claims 1 to 3, characterized in that the inner envelope (9) is made of PFA by rotational molding. 5. Fût selon l'une quelconque des revendications 1 à 3, caractérisé par le fait que l'enveloppe extérieure (1,2,3) est une enveloppe à double paroi en polyéthylène garnie d'une mousse de polyéthylène.5. Barrel according to any one of claims 1 to 3, characterized in that the outer envelope (1,2,3) is a double-walled polyethylene envelope filled with polyethylene foam.
EP89400573A 1988-03-01 1989-03-01 Drum for the transport and storage of chemical products Withdrawn EP0333544A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8802541 1988-03-01
FR8802541A FR2628074B1 (en) 1988-03-01 1988-03-01 FUT FOR THE TRANSPORT AND STORAGE OF CHEMICALS

Publications (1)

Publication Number Publication Date
EP0333544A1 true EP0333544A1 (en) 1989-09-20

Family

ID=9363771

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89400573A Withdrawn EP0333544A1 (en) 1988-03-01 1989-03-01 Drum for the transport and storage of chemical products

Country Status (5)

Country Link
US (1) US5044514A (en)
EP (1) EP0333544A1 (en)
JP (1) JP2608601B2 (en)
DE (1) DE333544T1 (en)
FR (1) FR2628074B1 (en)

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WO2018146115A1 (en) * 2017-02-09 2018-08-16 Richter, Bodo Double barrel for hazardous goods

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DE29509086U1 (en) * 1995-06-01 1995-08-31 Ehs, Eugen, 80637 München Dryer container for an air conditioning system
EP1000976A4 (en) * 1998-05-29 2001-09-12 Daikin Ind Ltd Spherulite-micronizing agent for crystalline fluororesin and crystalline fluororesin composition containing the micronizing agent
WO2008013819A2 (en) * 2006-07-25 2008-01-31 Antheil William L Beer keg and method of assembly
US8967407B2 (en) * 2009-07-27 2015-03-03 Rehrig Pacific Company Plastic beer keg
US8505458B1 (en) * 2012-01-27 2013-08-13 The United States Of America As Represented By The Secretary Of The Navy Venting cap system
CA2895614A1 (en) 2014-06-23 2015-12-23 Rehrig Pacific Company Plastic beer keg
US10196254B2 (en) * 2015-01-28 2019-02-05 Pik Six LLC Compact portable cooling container and keg dispenser
US9809238B2 (en) * 2015-01-28 2017-11-07 Pik Six LLC Compact portable cooling container and keg dispenser
CA2955469A1 (en) * 2017-01-20 2018-07-20 Robert Kamen Biohazardous material transporting pig
US10943802B2 (en) * 2018-07-31 2021-03-09 Taiwan Semiconductor Manufacturing Co., Ltd. Photoresist bottle container
CN111077108B (en) * 2019-12-31 2020-08-25 中国科学院地质与地球物理研究所 Laser sample room suitable for deep space detection

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
WO2018146115A1 (en) * 2017-02-09 2018-08-16 Richter, Bodo Double barrel for hazardous goods
US11192683B2 (en) 2017-02-09 2021-12-07 Bodo Richter Double barrel for hazardous goods

Also Published As

Publication number Publication date
FR2628074B1 (en) 1990-06-22
JPH0272046A (en) 1990-03-12
US5044514A (en) 1991-09-03
JP2608601B2 (en) 1997-05-07
DE333544T1 (en) 1990-09-06
FR2628074A1 (en) 1989-09-08

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