EP0338894B1 - Container for storing radioactive waste - Google Patents

Container for storing radioactive waste Download PDF

Info

Publication number
EP0338894B1
EP0338894B1 EP89401011A EP89401011A EP0338894B1 EP 0338894 B1 EP0338894 B1 EP 0338894B1 EP 89401011 A EP89401011 A EP 89401011A EP 89401011 A EP89401011 A EP 89401011A EP 0338894 B1 EP0338894 B1 EP 0338894B1
Authority
EP
European Patent Office
Prior art keywords
receptacle
lid
container
container according
annular element
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.)
Expired - Lifetime
Application number
EP89401011A
Other languages
German (de)
French (fr)
Other versions
EP0338894A1 (en
Inventor
Pascal Phlix
Jean-Paul Credoz
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.)
Electricite de France SA
Original Assignee
Electricite de France SA
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 Electricite de France SA filed Critical Electricite de France SA
Priority to AT89401011T priority Critical patent/ATE92667T1/en
Publication of EP0338894A1 publication Critical patent/EP0338894A1/en
Application granted granted Critical
Publication of EP0338894B1 publication Critical patent/EP0338894B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F5/00—Transportable or portable shielded containers
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/28—Treating solids
    • G21F9/34—Disposal of solid waste
    • G21F9/36—Disposal of solid waste by packaging; by baling

Definitions

  • the invention relates to storage containers for radioactive waste, more particularly suitable for the storage of weakly and moderately radioactive solidified waste from nuclear sites.
  • the containers concerned are concrete containers such as that described in the British patent application GB-A-21 32 814 and the waste is in particular constituted by so-called process waste such as filters, evaporator concentrates and resins used ion exchangers. Concrete containers are essential for the transport and storage of such radioactive waste as soon as the radioactivity measured exceeds 200 mrem / h.
  • Liquid waste is poured into containers and then conditioned for solidification
  • Storage containers should be designed to provide optimal usable volume while ensuring biological protection over time.
  • the known containers consist of a container closed by a stopper.
  • the container comprises a concrete shell or envelope and an inner metal tank, the wall of which comprises, if necessary, a layer of lead constituting a shield.
  • the plug is a plug, most often made of concrete, poured on site. Concrete plugs poured in situ sometimes show some cracking due to the dimensional variations of the concrete over time and they are of variable quality and difficult to control.
  • Other known plugs consist of lead beads embedded in a mixture of pitch and epoxy resin. This solution offers better protection against radiation, but it is difficult and expensive to achieve.
  • the object of the invention is to obviate these drawbacks by proposing a container allowing faster and safer closure with the aid of a stopper, the quality of which can be checked beforehand.
  • the subject of the invention is a container for storing radioactive waste as characterized in claim 1.
  • the use of the invention allows, in addition, a lower requirement in qualification of operating personnel, which is of interest, particularly in exported installations (South Africa, South Korea, People's China, ).
  • FIGS 1 and 2 show a first embodiment of the invention.
  • the container 1 consists of a container 2 hermetically closed using a prefabricated concrete plug 3.
  • the container has an outer casing 4 of concrete and a composite inner wall 5 forming a tank.
  • the internal wall is of cylindrical shape and composed of different elements arranged in the following order, seen from the inside to the outside of FIG. 1: first a first steel element 6 forming the internal face of the container, followed by an element made of heavy material such as lead 7 forming a shield against radiation. This shielding is covered by a second steel element 8 followed by a flexible element 9.
  • the flexible element 9 has the function of absorbing the dimensional variations over time of the envelope 2, which is essential to avoid cracks in the concrete caused by tensions in the latter during its removal.
  • the flexible element 9 must also serve as thermal insulation when filling the container 2, since the waste can be poured into the container in the state hot and undergo a temperature rise during solidification, which causes thermal stresses in the concrete. It is therefore desirable to mitigate these stresses by having a heat-insulating element between the tank and the concrete envelope.
  • the flexible element 9 is preferably made of expanded polystyrene.
  • the element must be protected against the humidity contained in the concrete and this protection can be ensured by a layer 10 of an appropriate material, for example polyane, applied to the external face of the flexible element 9 in order to prevent that it is in direct contact with the concrete casing 4.
  • a layer 10 of an appropriate material for example polyane
  • An agitator 13 can be used for packaging the waste for solidification and it then remains with the waste in the container.
  • a shoe 11 forming a support for the axis 12 of the agitator 13 with blades 14 is fixed to the center of the bottom of the tank 5.
  • the container 2 is provided with an annular element 15 integral with the open end of the tank 5 and intended to form a seat for the plug 3.
  • the annular element 15 comprises a radial core 16, a skirt 17 directed upwards and an axial re-entrant collar 18 which forms an anti-overflow member during the agitation of the waste with a view to its conditioning and which delimits the useful volume of the container.
  • the container 2 is, over its entire periphery, provided with a groove 19 intended to receive a belt for handling the empty container or the filled and closed container.
  • the concrete plug 3 is provided with a metal coating 20 whose face facing the tank 5 defines therewith the interior volume of the container.
  • the metal coating 20 is in the form of a bowl.
  • the side wall 21 of the bowl 20 cooperates, when the cap 3 is in place on the container 2, with the skirt 17 of the annular element 15 of the container 2 so that their respective edges form means of connection of the cap with the container.
  • the edges are juxtaposed and assembled over their entire length by a continuous weld bead 22.
  • the weld bead is advantageously applied using a welding robot, which makes it possible to automate the entire sealing process. This assembly process also has the advantage of ensuring an absolutely tight seal between the elements.
  • the side wall 21 of the bowl 20 and the skirt 17 of the annular element 15 preferably have a flared shape.
  • the flared shape ensures the centering of the plug 3 when it is placed on the container 2.
  • the skirt 17 of flared shape forms a bearing surface against which the side wall 21 of the covering 20 also flared rests, this which also contributes to sealing between the plug 3 and the container 2.
  • the side wall 21 of the bowl 20 and the skirt 17 of the annular element 15 can also be of cylindrical shape, which then requires a certain play between these elements to facilitate the fitting of the plug.
  • the outer concrete casing 4 projects in height above the skirt 17 of the annular element.
  • the open face of the plug 3 preferably flush or slightly exceeds the upper end face of the casing 4, when the plug is placed on its seat, in order to present a surface as homogeneous as possible to facilitate the stacking of the containers during storage.
  • the envelope 4 of the container 2 is, at the end of its internal wall which faces the plug 3, provided with a continuous recess 23a.
  • the plug is provided with a corresponding recess 23b extending over the entire periphery of its upper face.
  • the recesses 23a, 23b form, when the cap is placed on the container, a groove 23 into which the edges of the bowl 20 and of the skirt 17 open.
  • the groove 23 is filled with a mortar 24 to protect the weld bead 22.
  • the groove 23 communicates with the external lateral wall of the casing 4 by radial grooves 26 forming weirs regularly disposed at the open end of the latter.
  • the container is preferably provided with a ring 25 of heavy material of the same kind as the shield 7 forming a shield compensating for the reduction in thickness of the wall of the container and of the plug due to the presence of said groove 23.
  • L 'ring 25 is disposed inside the container 2 and connected to the annular element 15 thereof.
  • the ring 25 can be an insert as shown in FIG. 1 or be part of the shield 7 of the internal wall 5.
  • the plug 3 is provided with two threaded sockets 27 arranged in opposite recesses 28 on its upper face.
  • the sockets are intended to cooperate with screws 29 integral with lifting rings 30 put in place only during the handling of the plug.
  • FIG. 3 is a partial sectional view of a variant of the first embodiment of the invention.
  • the container 31 consists of a concrete casing 32 and a composite internal wall 33 forming a tank.
  • the internal wall 33 has the same structure as the internal wall already described with reference to FIG. 1.
  • the concrete plug 34 has a metal coating 35 in the form of a plate.
  • the container 31 has a flat annular element 36 which forms a seat for the stopper.
  • the edge of the covering 35 and the outer edge of the annular element 36 protrude towards the external lateral surface of the container.
  • the stopper 34 is provided with a recess 37a extending over its entire periphery and the casing 32 of the container is provided with a corresponding element 37b at the upper end of its external side wall.
  • the recesses 37a, 37b form, when the stopper is placed on the container, a groove 37 into which the edges of the metal coating 35 of the stopper and of the annular element 36 of the container open.
  • Said edges constitute respective connection means of the covering 35 and of the annular element 36. They are connected by a continuous weld bead 38.
  • the plug 34 is provided with at least two channels 39 which connect the groove 37 to the upper face of the plug 34.
  • the channels 39 of which are intended for filling groove 37 by a mortar (not shown) and the evacuation of air therefrom.
  • the groove 37 must be closed using a formwork (not shown) after the application of the weld bead 38, which allows the filling of the throat and the protection of the weld bead.
  • the stopper 34 is preferably provided with a centering rim 40 disposed on its face facing the container 31.
  • the centering rim 40 cooperates with the internal edge of the annular element 36 of the container 31 for the establishment of the stopper 34 on the container.
  • the annular element 36 is, as in the embodiment already described, preferably provided with a re-entrant axial flange 41 delimiting the opening of the container 31 and forming an anti-overflow member cooperating with the centering rim 40.
  • the container 31 comprises a ring 42 of heavy material forming a shield compensating for the reduction in thickness of the wall of the container 31 and of the stopper 34 due to the presence of the groove 37.
  • the ring 42 constitutes an extension of the shield of the composite internal wall 33 by forming a flange facing the interior of the container.
  • FIG. 4 is a partial sectional view showing a second embodiment of the invention.
  • the container consists of a container 43 closed by a plug 44.
  • the container has an envelope 45 and a composite internal wall 46 forming a tank.
  • the internal wall 46 has the same structure as that described with reference to FIG. 1.
  • the stopper is provided with a metallic coating 47 forming connecting means intended to cooperate with means for connecting the container constituted by an annular element 48 integral of the tank 46 and which also forms a seat for the plug.
  • the metal coating 47 is bowl-shaped and provided with a peripheral flange 49.
  • the side wall 47a of the bowl 47 forms a centering member when the plug is placed on the container.
  • the stopper 44 and the casing 45 delimit, when the stopper is put in place, an annular groove 50 opening towards the top of the container.
  • the connection means between the plug 44 and the container 43 are arranged at the bottom of the groove 50.
  • the flange 49 is provided at its periphery with regularly spaced holes 51 arranged opposite corresponding holes 52 formed in the annular element 48.
  • Assembly means are constituted by bolts 53 arranged so as to cooperate with nuts 54 through said holes 51, 52 for sealing the container.
  • a seal 55 is preferably mounted between the facing faces of the metal covering 47 of the plug 44 and of the annular element 48 of the container 43.
  • a metal ring 56 identical to that already described with reference to FIG. 3 extends radially inside the container 43.
  • the ring 56 is connected to a re-entrant axial flange 57 delimiting the opening of the container and forming an anti-overflow device.
  • the groove 50 communicates with the external lateral wall of the casing 45 by radial grooves 58 forming weirs regularly disposed at the open end of the latter.
  • FIG. 5 is a partial sectional view showing a third embodiment of the invention.
  • the container consists of a container 59 closed by a plug 60.
  • the container 59 comprises an envelope 61 and a composite internal wall 62 forming a tank.
  • the internal wall 62 has the same structure as that described with reference to FIG. 1.
  • the stopper 60 is provided with a metallic coating 63 forming connection means intended to cooperate with connection means of the container 59 constituted by an annular element 64 integral with the tank 62.
  • the annular element 64 is in this case advantageously constituted by a radial extension of the composite internal wall 62. This annular element also forms a seat for the plug.
  • the metal coating 63 of the plug 60 is cup-shaped.
  • the side wall 63a of said bowl is cylindrical and forms a centering member when the plug 60 is placed on the container 59.
  • the peripheral part of the metal covering 63 forms a flange 65.
  • the container 59 is provided with retaining members 66 regularly arranged on the envelope 61 and extending radially towards the interior of the container.
  • the retaining members 66 are intended to cooperate with the upper face of the flange 65.
  • the flange 65 of the metal covering 63 is provided with cutouts 67 complementary to the retaining members 66 so as to allow the plug 60 to come into abutment against the seat .
  • Stop members 68 are arranged on the upper face of the flange 65.
  • the stop members 68 are intended to come into abutment against the retaining members 66 of the container 59 by angular displacement of the plug 60 relative to the latter.
  • the flange 65 and the retaining members 66 thus form a bayonet socket which constitutes the connecting means between the stopper and the container.
  • a seal 69 is preferably mounted between the facing faces of the metal covering 63 of the plug 60 and of the annular element 64 of the container 59.
  • a groove 70 is formed between the internal wall of the casing 61 and the side wall of the plug 60.
  • the groove 70 is filled with a mortar (not shown) after the closure of the plug.
  • the groove 70 communicates with the external lateral wall of the casing 61 by radial grooves 71 forming weirs regularly arranged at the open end of the latter.
  • the annular element 64 further comprises a re-entrant axial collar 72 delimiting the opening of the container and forming an anti-overflow member.
  • the flange 65 of the plug 60 can advantageously comprise on its upper surface portions forming corners (not shown) cooperating with the corresponding retaining members 66 to lock the plug in its closed position.
  • the present invention thus allows the containers to be plugged quickly and safely. It also ensures a good quality of the seal over time between the cap and the container.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Processing Of Solid Wastes (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Closures For Containers (AREA)
  • Centrifugal Separators (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Refuse Receptacles (AREA)
  • Measurement Of Radiation (AREA)
  • Refuse Collection And Transfer (AREA)

Abstract

The container consists of a receptacle (2) and a plug (3), the receptacle comprising a concrete outer enclosure (4) and a composite inner wall (5) both together constituting a vessel intended to contain the waste while making it possible to absorb the dimensional changes of the enclosure with time and to insulate the enclosure thermally from the interior of the vessel. The plug (3) is a prefabricated concrete plug comprising a metal cladding (20). The receptacle (2) is provided with an annular member (15) integrally attached to the vessel and resting on the enclosure (4) to form a seat for the plug (3). Lateral parts (21) of the cladding (20) and (17) of the annular member (15) are adjacent and project into a groove (23) arranged on the upper face of the container. The edges of these lateral parts are joined, for example by welding. The container is suitable for the transport and storage of weakly or moderately radioactive solidified waste. <IMAGE>

Description

L'invention concerne les conteneurs de stockage de déchets radioactifs, plus particulièrement adaptés au stockage de déchets solidifiés faiblement et moyennement radioactifs des sites nucléaires.The invention relates to storage containers for radioactive waste, more particularly suitable for the storage of weakly and moderately radioactive solidified waste from nuclear sites.

Les conteneurs concernés sont des conteneurs en béton tels que celui décrit dans la demande de brevet anglais GB-A-21 32 814 et les déchets sont notamment constitués par des déchets dits de procédé tels que des filtres, des concentrats d'évaporateur et des résines échangeuses d'ions usées. Les conteneurs en béton sont de rigueur pour le transport et le stockage de tels déchets radioactifs dès que la radioactivité mesurée dépasse 200 mrem/h.The containers concerned are concrete containers such as that described in the British patent application GB-A-21 32 814 and the waste is in particular constituted by so-called process waste such as filters, evaporator concentrates and resins used ion exchangers. Concrete containers are essential for the transport and storage of such radioactive waste as soon as the radioactivity measured exceeds 200 mrem / h.

Les déchets liquides sont versés dans les conteneurs et ensuite conditionnés en vue de leur solidificationLiquid waste is poured into containers and then conditioned for solidification

Les conteneurs de stockage doivent être conçus de façon à offrir un volume utile optimal tout en garantissant la protection biologique dans le temps.Storage containers should be designed to provide optimal usable volume while ensuring biological protection over time.

Les conteneurs connus sont constitués d'un récipient fermé par un bouchon. Le récipient comporte une coque ou enveloppe en béton et une cuve intérieure métallique dont la paroi comprend, si besoin est, une couche de plomb constituant un blindage. Le bouchon est un bouchon, le plus souvent en béton, coulé sur place. Les bouchons en béton coulés sur place présentent parfois une certaine fissuration due aux variations dimensionnelles du béton dans le temps et ils sont d'une qualité variable et difficile à contrôler. D'autres bouchons connus sont constitués par des billes de plomb noyées dans un mélange de brai et de résine époxy. Cette solution offre une meilleure protection contre les radiations, mais elle est difficile et coûteuse a réaliser.The known containers consist of a container closed by a stopper. The container comprises a concrete shell or envelope and an inner metal tank, the wall of which comprises, if necessary, a layer of lead constituting a shield. The plug is a plug, most often made of concrete, poured on site. Concrete plugs poured in situ sometimes show some cracking due to the dimensional variations of the concrete over time and they are of variable quality and difficult to control. Other known plugs consist of lead beads embedded in a mixture of pitch and epoxy resin. This solution offers better protection against radiation, but it is difficult and expensive to achieve.

L'invention a pour but d'obvier à ces inconvénients en proposant un conteneur permettant un bouchage plus rapide et plus sûr à l'aide d'un bouchon dont la qualité peut être contrôlée préalablement.The object of the invention is to obviate these drawbacks by proposing a container allowing faster and safer closure with the aid of a stopper, the quality of which can be checked beforehand.

A cet effet, l'invention a pour objet un conteneur de stockage de déchets radioactifs tel que caractérisé dans la revendication 1.To this end, the subject of the invention is a container for storing radioactive waste as characterized in claim 1.

L'utilisation de l'invention permet, en outre, une moindre exigence en qualification de personnel exploitant, ce qui présente un intérêt, notamment dans les installations exportées (Afrique du Sud, Corée du Sud, Chine Populaire, ...).The use of the invention allows, in addition, a lower requirement in qualification of operating personnel, which is of interest, particularly in exported installations (South Africa, South Korea, People's China, ...).

Selon d'autres caractéristiques de l'invention :

  • les bords sont reliés ensemble de façon étanche par un cordon continu de soudure ou un sertissage continu.
  • Le revêtement métallique est en forme de cuvette ; l'élément annulaire comporte une âme radiale et une jupe dirigée vers le haut ; les bords de la cuvette et de la jupe font saillie vers le haut du conteneur.
  • le bouchon est pourvu d'un évidement s'étendant sur toute la périphérie de sa face supérieure ; l'enveloppe du récipient est pourvue d'un évidement correspondant à l'extrémité de sa paroi interne en regard du bouchon ; les évidements forment, lorsque le bouchon est mis en place sur le récipient, une gorge dans laquelle débouchent les bords de la cuvette et de la jupe.
  • la paroi latérale du revêtement du bouchon et la jupe de l'élément annulaire du récipient sont évasées afin d'assurer le centrage et de contribuer à l'étanchéité par contact de la paroi latérale du revêtement du bouchon sur la jupe.
According to other characteristics of the invention:
  • the edges are tightly connected together by a continuous weld bead or a continuous crimp.
  • The metal coating is bowl-shaped; the annular element comprises a radial core and a skirt directed upwards; the edges of the bowl and the skirt protrude towards the top of the container.
  • the plug is provided with a recess extending over the entire periphery of its upper face; the envelope of the container is provided with a recess corresponding to the end of its internal wall opposite the stopper; the recesses form, when the stopper is placed on the container, a groove into which the edges of the bowl and the skirt open.
  • the side wall of the cover of the stopper and the skirt of the annular element of the container are flared in order to ensure centering and to contribute to the sealing by contact of the side wall of the cover of the stopper on the skirt.

L'invention sera maintenant décrite plus en détails en référence aux dessins annexés sur lesquels :

  • La figure 1 est une vue schématique latérale, partiellement en coupe, d'un conteneur suivant un premier mode de réalisation de l'invention
  • La figure 2 est une vue de dessus du conteneur de la figure 1.
  • La figure 3 est une vue en coupe partielle d'un conteneur suivant une variante du premier mode de réalisation.
  • La figure 4 est une vue en coupe partielle d'un conteneur suivant un deuxième mode de réalisation de l'invention ; et
  • La figure 5 est une vue en coupe partielle d'un conteneur suivant un troisième mode de réalisation de l'invention.
The invention will now be described in more detail with reference to the accompanying drawings in which:
  • Figure 1 is a schematic side view, partially in section, of a container according to a first embodiment of the invention
  • Figure 2 is a top view of the container of Figure 1.
  • Figure 3 is a partial sectional view of a container according to a variant of the first embodiment.
  • Figure 4 is a partial sectional view of a container according to a second embodiment of the invention; and
  • Figure 5 is a partial sectional view of a container according to a third embodiment of the invention.

Les figures 1 et 2 montrent un premier mode de réalisation de l'invention. Le conteneur 1 est constitué d'un récipient 2 hermétiquement fermé à l'aide d'un bouchon préfabriqué 3 en béton.Figures 1 and 2 show a first embodiment of the invention. The container 1 consists of a container 2 hermetically closed using a prefabricated concrete plug 3.

Le récipient comporte une enveloppe externe 4 en béton et une paroi interne composite 5 formant cuve. La paroi interne est de forme cylindrique et composée d'éléments différents disposés dans l'ordre suivant, vu de l'intérieur vers l'extérieur de la figure 1 : d'abord un premier élément en acier 6 formant la face interne du récipient, suivi d'un élément en matériau lourd tel que du plomb 7 formant blindage contre la radiation. Ce blindage est recouvert par un deuxième élément en acier 8 suivi d'un élément souple 9.The container has an outer casing 4 of concrete and a composite inner wall 5 forming a tank. The internal wall is of cylindrical shape and composed of different elements arranged in the following order, seen from the inside to the outside of FIG. 1: first a first steel element 6 forming the internal face of the container, followed by an element made of heavy material such as lead 7 forming a shield against radiation. This shielding is covered by a second steel element 8 followed by a flexible element 9.

L'élément souple 9 a pour fonction d'absorber les variations dimensionnelles dans le temps de l'enveloppe 2, ce qui est primordial pour éviter des fissures dans le béton provoquées par des tensions dans celui-ci lors de son retrait. L'élément souple 9 doit aussi servir comme isolant thermique lors du remplissage du récipient 2, étant donné que les déchets peuvent être versés dans le récipient à l'état chaud et subir une élévation de température en cours de solidification, ce qui provoque des sollicitations thermiques dans le béton. Il est donc souhaitable d'atténuer ces sollicitations en disposant un élément thermo-isolant entre la cuve et l'enveloppe en béton.The flexible element 9 has the function of absorbing the dimensional variations over time of the envelope 2, which is essential to avoid cracks in the concrete caused by tensions in the latter during its removal. The flexible element 9 must also serve as thermal insulation when filling the container 2, since the waste can be poured into the container in the state hot and undergo a temperature rise during solidification, which causes thermal stresses in the concrete. It is therefore desirable to mitigate these stresses by having a heat-insulating element between the tank and the concrete envelope.

L'élément souple 9 est de préférence constitué de polystyrène expansé.The flexible element 9 is preferably made of expanded polystyrene.

L'élément doit être protégé contre l'humidité contenue dans le béton et cette protection peut être assurée par une couche 10 d'une matière appropriée, par exemple le polyane, appliquée sur la face externe de l'élément souple 9 afin d'empêcher que celui-ci soit en contact direct avec l'enveloppe 4 en béton.The element must be protected against the humidity contained in the concrete and this protection can be ensured by a layer 10 of an appropriate material, for example polyane, applied to the external face of the flexible element 9 in order to prevent that it is in direct contact with the concrete casing 4.

Un agitateur 13 peut être utilisé pour le conditionnement des déchets en vue de leur solidification et il reste ensuite avec les déchets dans le conteneur. Dans ce cas, un sabot 11 formant support pour l'axe 12 de l'agitateur 13 à pales 14 est fixé au centre du fond de la cuve 5.An agitator 13 can be used for packaging the waste for solidification and it then remains with the waste in the container. In this case, a shoe 11 forming a support for the axis 12 of the agitator 13 with blades 14 is fixed to the center of the bottom of the tank 5.

Le récipient 2 est pourvu d'un élément annulaire 15 solidaire de l'extrémité ouverte de la cuve 5 et destiné à former un siège pour le bouchon 3.The container 2 is provided with an annular element 15 integral with the open end of the tank 5 and intended to form a seat for the plug 3.

L'élément annulaire 15 comporte une âme radiale 16, une jupe 17 dirigée vers le haut et une collerette axiale rentrante 18 qui forme un organe anti-débordement lors de l'agitation des déchets en vue de leur conditionnement et qui délimite le volume utile du conteneur.The annular element 15 comprises a radial core 16, a skirt 17 directed upwards and an axial re-entrant collar 18 which forms an anti-overflow member during the agitation of the waste with a view to its conditioning and which delimits the useful volume of the container.

Le récipient 2 est, sur toute sa périphérie, pourvu d'une gorge 19 destinée à recevoir une ceinture de manutention du récipient vide ou du conteneur rempli et fermé.The container 2 is, over its entire periphery, provided with a groove 19 intended to receive a belt for handling the empty container or the filled and closed container.

Le bouchon en béton 3 est pourvu d'un revêtement métallique 20 dont la face tournée vers la cuve 5 délimite avec celle-ci le volume intérieur du conteneur. Dans le premier mode de réalisation illustré sur la figure 1, le revêtement métallique 20 est en forme de cuvette.The concrete plug 3 is provided with a metal coating 20 whose face facing the tank 5 defines therewith the interior volume of the container. In the first embodiment illustrated in Figure 1, the metal coating 20 is in the form of a bowl.

La paroi latérale 21 de la cuvette 20 coopère, lorsque le bouchon 3 est en place sur le récipient 2, avec la jupe 17 de l'élément annulaire 15 du récipient 2 de façon que leurs bords respectifs forment des moyens de liaison du bouchon avec le récipient. Les bords sont juxtaposés et assemblés sur toute leur longueur par un cordon de soudure continu 22. Le cordon de soudure est avantageusement appliqué à l'aide d'un robot de soudage, ce qui permet d'automatiser tout le processus de bouchage. Ce procédé d'assemblage a aussi l'avantage d'assurer un joint absolument étanche entre les éléments.The side wall 21 of the bowl 20 cooperates, when the cap 3 is in place on the container 2, with the skirt 17 of the annular element 15 of the container 2 so that their respective edges form means of connection of the cap with the container. The edges are juxtaposed and assembled over their entire length by a continuous weld bead 22. The weld bead is advantageously applied using a welding robot, which makes it possible to automate the entire sealing process. This assembly process also has the advantage of ensuring an absolutely tight seal between the elements.

Au lieu d'appliquer un cordon de soudure pour assembler le bouchon et le récipient, il est possible d'effectuer un sertissage continu assurant l'assemblage étanche des éléments.Instead of applying a weld bead to assemble the plug and the container, it is possible to carry out a continuous crimping ensuring the tight assembly of the elements.

La paroi latérale 21 de la cuvette 20 et la jupe 17 de l'élément annulaire 15 ont de préférence une forme évasée. La forme évasée assure le centrage du bouchon 3 lors de la mise en place de celui-ci sur le récipient 2. La jupe 17 de forme évasée forme une surface d'appui contre laquelle repose la paroi latérale 21 du revêtement 20 également évasée, ce qui contribue aussi à l'étanchéité entre le bouchon 3 et le récipient 2.The side wall 21 of the bowl 20 and the skirt 17 of the annular element 15 preferably have a flared shape. The flared shape ensures the centering of the plug 3 when it is placed on the container 2. The skirt 17 of flared shape forms a bearing surface against which the side wall 21 of the covering 20 also flared rests, this which also contributes to sealing between the plug 3 and the container 2.

La paroi latérale 21 de la cuvette 20 et la jupe 17 de l'élément annulaire 15 peuvent aussi être de forme cylindrique, ce qui nécessite alors un certain jeu entre ces éléments pour faciliter la mise en place du bouchon.The side wall 21 of the bowl 20 and the skirt 17 of the annular element 15 can also be of cylindrical shape, which then requires a certain play between these elements to facilitate the fitting of the plug.

L'enveloppe externe 4 en béton dépasse en hauteur la jupe 17 de l'élément annulaire. La face ouverte du bouchon 3 affleure de préférence ou dépasse légèrement la face d'extrémité supérieure de l'enveloppe 4, lorsque le bouchon est mis en place sur son siège, afin de présenter une surface aussi homogène que possible pour faciliter l'empilement des conteneurs lors de leur stockage.The outer concrete casing 4 projects in height above the skirt 17 of the annular element. The open face of the plug 3 preferably flush or slightly exceeds the upper end face of the casing 4, when the plug is placed on its seat, in order to present a surface as homogeneous as possible to facilitate the stacking of the containers during storage.

L'enveloppe 4 du récipient 2 est, à l'extrémité de sa paroi interne qui est en regard du bouchon 3, pourvue d'un évidement continu 23a. Le bouchon est pourvu d'un évidement correspondant 23b s'étendant sur toute la périphérie de sa face supérieure. Les évidements 23a, 23b forment, lorsque le bouchon est mis en place sur le récipient, une gorge 23 dans laquelle débouchent les bords de la cuvette 20 et de la jupe 17.The envelope 4 of the container 2 is, at the end of its internal wall which faces the plug 3, provided with a continuous recess 23a. The plug is provided with a corresponding recess 23b extending over the entire periphery of its upper face. The recesses 23a, 23b form, when the cap is placed on the container, a groove 23 into which the edges of the bowl 20 and of the skirt 17 open.

La gorge 23 est remplie d'un mortier 24 pour protéger le cordon de soudure 22.The groove 23 is filled with a mortar 24 to protect the weld bead 22.

La gorge 23 communique avec la paroi latérale externe de l'enveloppe 4 par des rainures radiales 26 formant déversoirs régulièrement disposées à l'extrémité ouverte de celle-ci.The groove 23 communicates with the external lateral wall of the casing 4 by radial grooves 26 forming weirs regularly disposed at the open end of the latter.

Le récipient est de préférence pourvu d'un anneau 25 en matériau lourd de même nature que le blindage 7 formant un blindage de compensation de la réduction d'épaisseur de la paroi du récipient et du bouchon dû à la présence de ladite gorge 23. L'anneau 25 est disposé à l'intérieur du récipient 2 et relié à l'élément annulaire 15 de celui-ci. L'anneau 25 peut être une pièce rapportée comme le montre la figure 1 ou faire partie du blindage 7 de la paroi interne 5.The container is preferably provided with a ring 25 of heavy material of the same kind as the shield 7 forming a shield compensating for the reduction in thickness of the wall of the container and of the plug due to the presence of said groove 23. L 'ring 25 is disposed inside the container 2 and connected to the annular element 15 thereof. The ring 25 can be an insert as shown in FIG. 1 or be part of the shield 7 of the internal wall 5.

Le bouchon 3 est muni de deux douilles taraudées 27 disposées dans des évidements opposés 28 sur sa face supérieure. Les douilles sont destinées à coopérer avec des vis 29 solidaires d'anneaux de levage 30 mis en place uniquement pendant la manutention du bouchon.The plug 3 is provided with two threaded sockets 27 arranged in opposite recesses 28 on its upper face. The sockets are intended to cooperate with screws 29 integral with lifting rings 30 put in place only during the handling of the plug.

La figure 3 est une vue partielle en coupe d'une variante du premier mode de réalisation de l'invention. Le récipient 31 est constitué d'une enveloppe 32 en béton et d'une paroi interne composite 33 formant cuve. La paroi interne 33 a la même structure que la paroi interne déjà décrite en référence à la figure 1.Figure 3 is a partial sectional view of a variant of the first embodiment of the invention. The container 31 consists of a concrete casing 32 and a composite internal wall 33 forming a tank. The internal wall 33 has the same structure as the internal wall already described with reference to FIG. 1.

Le bouchon 34 en béton comporte un revêtement métallique 35 en forme de plaque. Le récipient 31 comporte un élément annulaire plat 36 qui forme un siège pour le bouchon.The concrete plug 34 has a metal coating 35 in the form of a plate. The container 31 has a flat annular element 36 which forms a seat for the stopper.

Le bord du revêtement 35 et le bord extérieur de l'élément annulaire 36 font saillie vers la surface latérale externe du conteneur. Le bouchon 34 est pourvu d'un évidement 37a s'étendant sur toute sa périphérie et l'enveloppe 32 du récipient est pourvue d'un élément correspondant 37b à l'extrémité supérieure de sa paroi latérale externe. Les évidements 37a, 37b forment, lorsque le bouchon est mis en place sur le récipient, une gorge 37 dans laquelle débouchent les bords du revêtement métallique 35 du bouchon et de l'élément annulaire 36 du récipient. Lesdits bords constituent des moyens de liaison respectifs du revêtement 35 et de l'élément annulaire 36. Ils sont reliés par un cordon de soudure continu 38.The edge of the covering 35 and the outer edge of the annular element 36 protrude towards the external lateral surface of the container. The stopper 34 is provided with a recess 37a extending over its entire periphery and the casing 32 of the container is provided with a corresponding element 37b at the upper end of its external side wall. The recesses 37a, 37b form, when the stopper is placed on the container, a groove 37 into which the edges of the metal coating 35 of the stopper and of the annular element 36 of the container open. Said edges constitute respective connection means of the covering 35 and of the annular element 36. They are connected by a continuous weld bead 38.

Le bouchon 34 est pourvu d'au moins deux canaux 39 qui relient la gorge 37 à la face supérieure du bouchon 34. Les canaux 39 dont destinés au remplissage de la gorge 37 par un mortier (non représenté) et à l'évacuation de l'air de celle-ci. La gorge 37 doit être fermée à l'aide d'un coffrage (non représenté) après l'application du cordon de soudure 38, ce qui permet le remplissage de la gorge et la protection du cordon de soudure.The plug 34 is provided with at least two channels 39 which connect the groove 37 to the upper face of the plug 34. The channels 39 of which are intended for filling groove 37 by a mortar (not shown) and the evacuation of air therefrom. The groove 37 must be closed using a formwork (not shown) after the application of the weld bead 38, which allows the filling of the throat and the protection of the weld bead.

Le bouchon 34 est de préférence pourvu d'un rebord de centrage 40 disposé sur sa face tournée vers le récipient 31. Le rebord de centrage 40 coopère avec le bord interne de l'élément annulaire 36 du récipient 31 pour la mise en place du bouchon 34 sur le récipient.The stopper 34 is preferably provided with a centering rim 40 disposed on its face facing the container 31. The centering rim 40 cooperates with the internal edge of the annular element 36 of the container 31 for the establishment of the stopper 34 on the container.

L'élément annulaire 36 est, comme dans le mode de réalisation déjà décrit, de préférence pourvu d'une collerette axiale rentrante 41 délimitant l'ouverture du récipient 31 et formant un organe anti-débordement coopérant avec le rebord de centrage 40.The annular element 36 is, as in the embodiment already described, preferably provided with a re-entrant axial flange 41 delimiting the opening of the container 31 and forming an anti-overflow member cooperating with the centering rim 40.

Le récipient 31 comporte un anneau 42 en matériau lourd formant un blindage de compensation de la réduction d'épaisseur de la paroi du récipient 31 et du bouchon 34 dû à la présence de la gorge 37. L'anneau 42 constitue une prolongation du blindage de la paroi interne composite 33 en formant une bride tournée vers l'intérieur du récipient.The container 31 comprises a ring 42 of heavy material forming a shield compensating for the reduction in thickness of the wall of the container 31 and of the stopper 34 due to the presence of the groove 37. The ring 42 constitutes an extension of the shield of the composite internal wall 33 by forming a flange facing the interior of the container.

La figure 4 est une vue partielle en coupe montrant un second mode de réalisation de l'invention. Le conteneur est constitué d'un récipient 43 fermé par un bouchon 44. Le récipient comporte une enveloppe 45 et une paroi interne composite 46 formant cuve. La paroi interne 46 a la même structure que celle décrite en référence à la figure 1. Le bouchon est pourvu d'un revêtement métallique 47 formant des moyens de liaison destinés à coopérer avec des moyens de liaison du récipient constitués par un élément annulaire 48 solidaire de la cuve 46 et qui de plus forme un siège pour le bouchon.Figure 4 is a partial sectional view showing a second embodiment of the invention. The container consists of a container 43 closed by a plug 44. The container has an envelope 45 and a composite internal wall 46 forming a tank. The internal wall 46 has the same structure as that described with reference to FIG. 1. The stopper is provided with a metallic coating 47 forming connecting means intended to cooperate with means for connecting the container constituted by an annular element 48 integral of the tank 46 and which also forms a seat for the plug.

Le revêtement métallique 47 est en forme de cuvette et pourvu d'une bride périphérique 49. La paroi latérale 47a de la cuvette 47 forme un organe de centrage lors de la mise en place du bouchon sur le récipient. Le bouchon 44 et l'enveloppe 45 délimitent, lorsque le bouchon est mis en place, une gorge annulaire 50 débouchant vers le haut du conteneur. Les moyens de liaison entre le bouchon 44 et le récipient 43 sont disposés au fond de la gorge 50.The metal coating 47 is bowl-shaped and provided with a peripheral flange 49. The side wall 47a of the bowl 47 forms a centering member when the plug is placed on the container. The stopper 44 and the casing 45 delimit, when the stopper is put in place, an annular groove 50 opening towards the top of the container. The connection means between the plug 44 and the container 43 are arranged at the bottom of the groove 50.

La bride 49 est pourvue à sa périphérie de trous 51 régulièrement espacés disposés en regard de trous correspondants 52 ménagés dans l'élément annulaire 48. Des moyens d'assemblage sont constitués par des boulons 53 disposés de façon à coopérer avec des écrous 54 à travers lesdits trous 51, 52 pour la fermeture étanche du conteneur.The flange 49 is provided at its periphery with regularly spaced holes 51 arranged opposite corresponding holes 52 formed in the annular element 48. Assembly means are constituted by bolts 53 arranged so as to cooperate with nuts 54 through said holes 51, 52 for sealing the container.

Un joint d'étanchéité 55 est de préférence monté entre les faces en regard du revêtement métallique 47 du bouchon 44 et de l'élément annulaire 48 du récipient 43.A seal 55 is preferably mounted between the facing faces of the metal covering 47 of the plug 44 and of the annular element 48 of the container 43.

Un anneau métallique 56 identique à celui déjà décrit en référence à la figure 3 s'étend radialement à l'intérieur du récipient 43. Dans ce cas l'anneau 56 est relié à une collerette axiale rentrante 57 délimitant l'ouverture du récipient et formant un organe anti-débordement.A metal ring 56 identical to that already described with reference to FIG. 3 extends radially inside the container 43. In this case the ring 56 is connected to a re-entrant axial flange 57 delimiting the opening of the container and forming an anti-overflow device.

La gorge 50 communique avec la paroi latérale externe de l'enveloppe 45 par des rainures radiales 58 formant déversoirs régulièrement disposés à l'extrémité ouverte de celle-ci.The groove 50 communicates with the external lateral wall of the casing 45 by radial grooves 58 forming weirs regularly disposed at the open end of the latter.

La figure 5 est une vue partielle en coupe montrant un troisième mode de réalisation de l'invention. Le conteneur est constitué d'un récipient 59 fermé par un bouchon 60. Le récipient 59 comporte une enveloppe 61 et une paroi interne composite 62 formant cuve. La paroi interne 62 a la même structure que celle décrite en référence à la figure 1. Le bouchon 60 est pourvu d'un revêtement métallique 63 formant des moyens de liaison destinés à coopérer avec des moyens de liaison du récipient 59 constitués par un élément annulaire 64 solidaire de la cuve 62. L'élément annulaire 64 est dans ce cas avantageusement constitué par un prolongement radial de la paroi interne composite 62. Cet élément annulaire forme de plus un siège pour le bouchon.Figure 5 is a partial sectional view showing a third embodiment of the invention. The container consists of a container 59 closed by a plug 60. The container 59 comprises an envelope 61 and a composite internal wall 62 forming a tank. The internal wall 62 has the same structure as that described with reference to FIG. 1. The stopper 60 is provided with a metallic coating 63 forming connection means intended to cooperate with connection means of the container 59 constituted by an annular element 64 integral with the tank 62. The annular element 64 is in this case advantageously constituted by a radial extension of the composite internal wall 62. This annular element also forms a seat for the plug.

Le revêtement métallique 63 du bouchon 60 est en forme de cuvette. La paroi latérale 63a de ladite cuvette est cylindrique et forme un organe de centrage lors de la mise en place du bouchon 60 sur le récipient 59.The metal coating 63 of the plug 60 is cup-shaped. The side wall 63a of said bowl is cylindrical and forms a centering member when the plug 60 is placed on the container 59.

La partie périphérique du revêtement métallique 63 forme une bride 65. Le récipient 59 est pourvu d'organes de retenue 66 régulièrement disposés sur l'enveloppe 61 et s'étendant radialement vers l'intérieur du conteneur. Les organes de retenue 66 sont destinés à coopérer avec la face supérieure de la bride 65. La bride 65 du revêtement métallique 63 est pourvue de découpes 67 complémentaires des organes de retenue 66 de façon à permettre au bouchon 60 de venir en appui contre le siège. Des organes de butées 68 sont disposés sur la face supérieure de la bride 65. Les organes de butées 68 sont destinées à venir en butée contre les organes de retenue 66 du récipient 59 par déplacement angulaire du bouchon 60 par rapport à celui-ci. La bride 65 et les organes de retenue 66 forment ainsi un emboitement à baïonnette qui constitue les moyens de liaison entre le bouchon et le récipient.The peripheral part of the metal covering 63 forms a flange 65. The container 59 is provided with retaining members 66 regularly arranged on the envelope 61 and extending radially towards the interior of the container. The retaining members 66 are intended to cooperate with the upper face of the flange 65. The flange 65 of the metal covering 63 is provided with cutouts 67 complementary to the retaining members 66 so as to allow the plug 60 to come into abutment against the seat . Stop members 68 are arranged on the upper face of the flange 65. The stop members 68 are intended to come into abutment against the retaining members 66 of the container 59 by angular displacement of the plug 60 relative to the latter. The flange 65 and the retaining members 66 thus form a bayonet socket which constitutes the connecting means between the stopper and the container.

Comme dans le deuxième mode de réalisation un joint d'étanchéité 69 est de préférence monté entre les faces en regard du revêtement métallique 63 du bouchon 60 et de l'élément annulaire 64 du récipient 59.As in the second embodiment, a seal 69 is preferably mounted between the facing faces of the metal covering 63 of the plug 60 and of the annular element 64 of the container 59.

Une gorge 70 est formée entre la paroi interne de l'enveloppe 61 et la paroi latérale du bouchon 60. La gorge 70 est remplie d'un mortier (non représenté) après la fermeture du bouchon. La gorge 70 communique avec la paroi latérale externe de l'enveloppe 61 par des rainures radiales 71 formant déversoirs régulièrement disposées à l'extrémité ouverte de celle-ci.A groove 70 is formed between the internal wall of the casing 61 and the side wall of the plug 60. The groove 70 is filled with a mortar (not shown) after the closure of the plug. The groove 70 communicates with the external lateral wall of the casing 61 by radial grooves 71 forming weirs regularly arranged at the open end of the latter.

L'élément annulaire 64 comprend en outre une collerette axiale rentrante 72 délimitant l'ouverture du récipient et formant un organe anti-débordement.The annular element 64 further comprises a re-entrant axial collar 72 delimiting the opening of the container and forming an anti-overflow member.

La bride 65 du bouchon 60 selon ce mode de réalisation peut avantageusement comporter sur sa surface supérieure des portions formant coins (non représentées) coopérant avec les organes de retenue correspondants 66 pour bloquer le bouchon dans sa position de fermeture.The flange 65 of the plug 60 according to this embodiment can advantageously comprise on its upper surface portions forming corners (not shown) cooperating with the corresponding retaining members 66 to lock the plug in its closed position.

La présente invention permet ainsi un bouchage rapide et sûr des conteneurs. Elle assure aussi une bonne qualité de l'étanchéité dans le temps entre le bouchon et le récipient.The present invention thus allows the containers to be plugged quickly and safely. It also ensures a good quality of the seal over time between the cap and the container.

Claims (21)

  1. Storage container for radio-active wastes, more particularly suited to storage of low or medium-level solidified wastes, comprising a receptacle (2;31; 43;59) and a concrete prefabricated lid (3;34;44;60), the receptacle is composed of an external case (4;32; 45; 61) in concrete and a composite internal lining (5; 33; 46; 62) the two forming a tank designed to contain the wastes whilst permitting, as time passes, the absorption of dimensional variations of the case (4; 32; 45; 61) and thermal insulation of the case from the interior of the tank and in conjunction with this, to confine radiations to the interior of the container, the receptacle has moreover a seating for the lid and the means of sealing (15; 36; 48; 66) which work together with the means of sealing (20; 35; 47; 63) the lid (3; 34; 44; 60) characterised in that the lid (3; 34) comprises a metallic coating (20; 35) the edges of which constitute the aforementioned means of sealing the lid and whose face turned towards the tank defines with that, the interior volume of the container, in that the receptacle (2; 31) is provided with an annular element (15; 36) integral with the tank and resting on the case (4; 32) to form a seating for the lid (3; 34), in that the exterior edge of the annular element (15; 36) constitutes the means of sealing the receptacle, and in that after the placing of the lid on the seating, the aforementioned edges of the coating (20; 35) of the lid (3; 64) and the annular element (15; 36) of the receptacle (2; 31) are juxtaposed and project towards the exterior of the container.
  2. Container according to claim 1, characterised in that the edges are joined together in an impervious manner by a continuous line (22; 38) of weld or by continuous crimping.
  3. Container according to claim 2, characterised in that the metallic coating (20) is in the form of a dish, in that the annular element (15) has a radial core (16) and a skirt (17) that faces upwards, in that the edges of the dish (20) and of the skirt (17) project towards the top of the container.
  4. Container according to claim 3 , characterised in that the lid (3) is provided with a channel (23b) that stretches all the way around the perimeter of the upper face, in that the case (4) of the receptacle (2) is provided with a corresponding channel (23a) at the extremity of its internal lining facing the lid (3), and in that the aforementioned channels (23a, 23b) forms, when the lid (3) is put in place on the receptacle (2), a groove (23) into which project the edges of the dish (20) and the skirt (17).
  5. Container according to claim 3 or 4, characterised in that the lateral lining of the coating (20) of the lid (3) and the skirt (17) of the annular element (15) of the receptacle (2) have a cylindrical form.
  6. Container according to claim 3 or 4, characterised in that the lateral lining of the coating (20) of the lid (3) and the skirt (17) of the annular element (15) of the receptacle (2) are flared in a complementary fashion.
  7. Container according to claim 1 or 2, characterised in that the metallic coating (35) of the lid (34) is in the form of a plate, in that the annular element (36) of the receptacle is flat and in that the edge of the coating (35) and the exterior edge of the annular element (36) project towards the exterior lateral surface of the container.
  8. Container according to claim 7, characterised in that the lid (34) is provided with a channel (37a) that stretches all the way round its perimeter, in that the case (32) of the receptacle (31) is provided with a corresponding channel (37b)on the exterior lateral lining, and in that the aforementioned channels (37a,37b) form, when the lid (34) is put in place on the receptacle (31), a groove (37) into which projects the edges of the metallic coating (35) of the lid (34) and the annular element (36) of the receptacle (31).
  9. Container according to claim 8, characterised in that the groove (37) is connected to the upper face of the lid (34) by at least two tubes (39) intended for the filling of the aforementioned groove (37) by a mortar and the evacuation of air out of it.
  10. Container according to claim 1, characterised in that the metallic coating (47; 63) forms a peripheral collar (49; 65), in that the lid (44; 60) and the case (45; 61) of the receptacle (43; 59) define, when the lid (44; 60) is put in place, an annular groove (50; 70) extending to the top of the container, and in that the means of sealing between the lid (44; 60) and the receptacle (43; 59) are placed at the bottom of the aforementioned groove (50; 70).
  11. Container according to claim 10, characterised in that the collar (49) is provided at its perimeter with holes (51) regularly spaced, placed facing corresponding holes (52) arranged in the annular element (48), and in that the means of assembling is constituted by bolts (53) disposed in such a fashion so as to line up with nuts (54) passing through the aforementioned holes (51; 52) so as to imperviously seal the container.
  12. Container according to claim 10, characterised in that the receptacle (59) is provided with retention devices (66) regularly placed on the case (61) and stretching radially towards the interior of the container, in that the collar (65) is provided with cut-outs (67) that complement the retention devices (66) in a fashion that allows the lid (60) to press against the seating, and stops (68) are placed on its the upper surface, designed to but up against the retention devices (66) of the receptacle (59) by angular displacement of the lid (60) in relation to this.
  13. Container according to claim 12 , characterised in that the collar (65) has on its upper surface parts forming wedges which cooperate with the corresponding retention devices (66) to lock the lid (60) in its closed position.
  14. Container according to claim 11 or 12 , characterised in that the metallic coating (47; 63) is flat.
  15. Container according to claim 11 or 12, characterised in that the metallic coating (47; 63) is in the form of the dish provided with a peripheral collar (49; 65), and in that the lateral lining (47a; 63a) of the aforementioned dish (47; 63) is cylindrical and forms a centering device when the lid (44; 60) is put in place on the receptacle (43; 59).
  16. Container according to any one of the claims 7, 8, 9 and 14, characterised in that the coating (35) is provided on its face turned towards the receptacle with a centering edge (40) that works with the internal edge of the annular element (36) of the receptacle, for the putting in place of the lid (34) on the receptacle (31).
  17. Container according to any one of the claims 1 to 16, characterised in that the annular element (15; 36; 48; 64) has moreover a re-entrant axial flange (18; 41; 67; 72) defining the opening of the receptacle (2; 31; 43; 59) and forming an anti-overflow device.
  18. Container according to any one of he claims 3 to 17, characterised in that a ring of dense material (25; 42; 56; 64) forms a screen to compensate for the reduction in thickness of the lining of the receptacle (2; 31; 43; 59) and of the lid (3; 34; 44; 60) due to the presence of the aforementioned groove (23; 37; 50 ;70) and arranged in the interior of the receptacle (2; 31; 43; 59) and joined to the annular element.
  19. Container according to any one of the claims 4 to 6 and 8 to 18, characterised in that the aforementioned groove (23; 37; 50; 70) is filled with a mortar for the protection of the means of sealing assembly of the receptacle (2; 31; 43; 59) and the lid (3; 34; 44; 60).
  20. Container according to any one of the claims 1 to 19 characterised in that between the surfaces facing the metallic coating (47; 63) of the lid (44; 60) and of the annular element (48; 64) of the receptacle (43; 59) an impervious joint (55; 69) is mounted.
  21. Container according to any one of the claims 3 to 6 and 9 to 20, characterised in that the groove (23; 50; 70) connects with the external lateral lining of the case (4; 45; 61) by radial slots (26; 58; 71) forming overflows regularly positoned at the open extremity of it.
EP89401011A 1988-04-18 1989-04-12 Container for storing radioactive waste Expired - Lifetime EP0338894B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89401011T ATE92667T1 (en) 1988-04-18 1989-04-12 STORAGE BARREL FOR RADIOACTIVE WASTE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8805090 1988-04-18
FR8805090A FR2630250B1 (en) 1988-04-18 1988-04-18 RADIOACTIVE WASTE STORAGE CONTAINER

Publications (2)

Publication Number Publication Date
EP0338894A1 EP0338894A1 (en) 1989-10-25
EP0338894B1 true EP0338894B1 (en) 1993-08-04

Family

ID=9365396

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89401011A Expired - Lifetime EP0338894B1 (en) 1988-04-18 1989-04-12 Container for storing radioactive waste

Country Status (8)

Country Link
EP (1) EP0338894B1 (en)
KR (1) KR890016581A (en)
CN (1) CN1025259C (en)
AT (1) ATE92667T1 (en)
DE (1) DE68907984T2 (en)
ES (1) ES2045483T3 (en)
FR (1) FR2630250B1 (en)
ZA (1) ZA892827B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0390379B1 (en) * 1989-03-31 1995-02-01 Westinghouse Electric Corporation Module for storage of nuclear waste packages
AU2002367740A1 (en) * 2002-03-06 2003-09-16 Yuri Sergeyevich Alexeyev Protective container
DE102016010903A1 (en) * 2016-09-08 2018-03-08 Jürgen Himbert Container combination and method for removing radioactive substances
DE102020005775B3 (en) 2020-09-22 2021-12-02 Helmut Schmidt Repository for low and high level radioactive waste

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2716463C2 (en) * 1977-04-14 1986-09-04 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe Disposable shielded container for the transport and final storage of radioactive waste in the sea
DE2726335C2 (en) * 1977-06-10 1984-12-13 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe Container unit for radioactive waste that can be used for final disposal
FR2495817B1 (en) * 1980-12-06 1988-05-13 Kernforschungsz Karlsruhe CONTAINER FOR STORING AND TRANSPORTING AT LEAST ONE SHELL FILLED WITH RADIO-ACTIVE WASTE INCORPORATED IN MOLTEN GLASS

Also Published As

Publication number Publication date
DE68907984D1 (en) 1993-09-09
FR2630250B1 (en) 1994-01-07
ZA892827B (en) 1990-11-28
ATE92667T1 (en) 1993-08-15
EP0338894A1 (en) 1989-10-25
FR2630250A1 (en) 1989-10-20
CN1038186A (en) 1989-12-20
DE68907984T2 (en) 1994-03-10
CN1025259C (en) 1994-06-29
KR890016581A (en) 1989-11-29
ES2045483T3 (en) 1994-01-16

Similar Documents

Publication Publication Date Title
EP2140459B1 (en) Container for transporting and/or storing nuclear materials, comprising a radiological shield made of lead cast onto a metal reinforcement
EP1166279A1 (en) Installation for very long term storage of heat-generating products such as nuclear waste
EP0942435B1 (en) Radiation screening arrangement for radioactive material transport container and method of setting up such a radiation screening arrangement
EP0338894B1 (en) Container for storing radioactive waste
EP0087350B1 (en) Neutron shielding device for radio-active material
EP2092533B1 (en) Nuclear fuel transport device and method of loading/unloading said device
EP1344227B1 (en) Packaging device for bulk transportation of uraniferous fissile materials
WO2001063621A1 (en) Double-chamber container for transporting or storing radioactive materials
EP2406790B1 (en) Container for storing spent nuclear fuel with facilitated closure sealing
EP0748506A1 (en) Device for securing the base of a container for the transport and or storage of radioactive materials
WO2005045849A2 (en) Device and method for packing nuclear fuel assemblies having a double containment barrier
FR2649824A1 (en) Packaging for storage and transport of fissile materials
EP0156689B1 (en) Fast nuclear reactor with suspended main vessel and lid
EP0877388B1 (en) Sealed closure system for multi-purpose confinement container for irradiated nuclear fuel assemblies of high activity waste material
EP0092461B1 (en) Annular closure slab for a fast neutron nuclear reactor vessel
FR2550652A1 (en) Container assembly for storing hot radioactive wastes
FR3143175A1 (en) PACKAGING FOR THE TRANSPORT AND/OR STORAGE OF RADIOACTIVE MATERIALS, INCLUDING A SIMPLIFIED RADIOLOGICAL PROTECTION DEVICE, REDUCING THE RISKS OF RADIOLOGICAL LEAKS
WO2014111445A1 (en) Packaging for transporting and/or storing radioactive substances, comprising improved protection against fire
FR2511176A1 (en) SHIELDED CONTAINER FOR TRANSPORT AND / OR STORAGE OF IRRADIATED NUCLEAR REACTOR FUEL ELEMENTS
FR2725299A1 (en) Transport and storage of irradiated nuclear reactor head
EP0509926A1 (en) Installation for the biological shielding of a circuit element for radioactive fluid
FR2549634A1 (en) Package for hazardous and/or radioactive products and process for its manufacture
FR2884347A1 (en) Container for protecting radioactive products in transit has confinement chamber inside protective packaging with foam layer and steel walls
BE474840A (en)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

RBV Designated contracting states (corrected)

Designated state(s): AT BE CH DE ES GB IT LI NL SE

RBV Designated contracting states (corrected)

Designated state(s): AT BE CH DE ES GB IT LI NL SE

17P Request for examination filed

Effective date: 19900330

17Q First examination report despatched

Effective date: 19920311

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES GB IT LI NL SE

REF Corresponds to:

Ref document number: 92667

Country of ref document: AT

Date of ref document: 19930815

Kind code of ref document: T

REF Corresponds to:

Ref document number: 68907984

Country of ref document: DE

Date of ref document: 19930909

ITF It: translation for a ep patent filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19931122

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2045483

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
EAL Se: european patent in force in sweden

Ref document number: 89401011.5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19960325

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19960326

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19960327

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19960328

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19960404

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19960418

Year of fee payment: 8

Ref country code: ES

Payment date: 19960418

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19960510

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19970412

Ref country code: AT

Effective date: 19970412

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19970413

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970414

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970430

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970430

Ref country code: BE

Effective date: 19970430

BERE Be: lapsed

Owner name: ELECTRICITE DE FRANCE SERVICE NATIONAL

Effective date: 19970430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19971101

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19970412

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980101

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19971101

EUG Se: european patent has lapsed

Ref document number: 89401011.5

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 19990503

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050412