EP0105002A1 - Process and device for storing pliable contaminated materials by compacting - Google Patents

Process and device for storing pliable contaminated materials by compacting Download PDF

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Publication number
EP0105002A1
EP0105002A1 EP83401873A EP83401873A EP0105002A1 EP 0105002 A1 EP0105002 A1 EP 0105002A1 EP 83401873 A EP83401873 A EP 83401873A EP 83401873 A EP83401873 A EP 83401873A EP 0105002 A1 EP0105002 A1 EP 0105002A1
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EP
European Patent Office
Prior art keywords
barrel
precover
waste
edges
support
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.)
Granted
Application number
EP83401873A
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German (de)
French (fr)
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EP0105002B1 (en
Inventor
André Cochet
Roger Droussent
Marcel Jurado
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Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
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Commissariat a lEnergie Atomique CEA
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Publication of EP0105002A1 publication Critical patent/EP0105002A1/en
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Publication of EP0105002B1 publication Critical patent/EP0105002B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/30—Presses specially adapted for particular purposes for baling; Compression boxes therefor
    • B30B9/3003—Details
    • B30B9/3028—Retaining dogs
    • 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 present invention relates to a method and a device for the storage of contaminated flexible materials. More specifically, it relates to a method and a device for increasing the quantity of products stored in a given volume.
  • This procedure has the disadvantage that the discarded objects cannot be packed in the drums because of their flexibility or elasticity, and therefore it is a relatively small mass of waste that can be stored in a given volume.
  • the object of the present invention is precisely to improve the efficiency of this operation by making it possible to store a large number of waste in a barrel of given volume.
  • the barrel has grooves and the locking of the edges of the precover takes place in these grooves.
  • a cardboard disc is used as a precover on the edges of which radial slots have been provided.
  • the invention also relates to a device for implementing this method.
  • this device comprises on the one hand means for positioning the barrel and on the other hand means for applying pressure to the precover.
  • the means for positioning the barrel comprise a vertical upright on which is mounted a semi-circular arch, the diameter of which corresponds to that of the barrel.
  • said amount and said support are combined or the support is fixed to the amount.
  • Figure 1 shows the device object of the invention which consists essentially of a vertical upright 2 on which is fixed a half-hoop 4 whose diameter corresponds to the diameter of the barrel 6, shown in phantom, in which one wishes to pack waste.
  • This is a metal barrel of a type commonly used in trade and which has, regularly distributed along its axis, grooves such as 8 projecting outside.
  • a vertical support 10 fixed to the upper part of the upright 2, the support 10 being integral with a horizontal arm 12 whose end opposite to the arm 10 comprises a guide tube 14 in which can slide vertically a rod 15.
  • the latter can be fixed in the guide tube 14 by means of a fixing means, for example a screw 16.
  • a cover 18, identical to those used on drums, has been pierced in its center in order to be able be threaded on the rod 15 and it is retained by a compression disc 17 screwed to the lower part of this last, as shown in Figure 2.
  • FIG. 1 also shows the cardboard precover 20 which is used for each compacting cycle of the waste in the barrel 6.
  • the diameter of the precover 20 is slightly greater than the inside diameter of the barrel 6, but radial slots such as 22 have been provided on its edges so that it can be inserted into the barrel 6 thanks to the deformation of its edges: in fact, the parts 21 comprised between two radial slots 22 are raised during the descent.
  • the rod 15 ends at its upper part by a stirrup 24 into which can be introduced a lever 26 shown schematically in phantom in the figure. Notches 28 formed in the vertical support 10 serve as support points for the lever 26.
  • FIG. 2 The progress of a compaction cycle of the waste is illustrated in the sectional view of FIG. 2.
  • the barrel 6 placed inside the half-hoop 4 secured to the upright 2.
  • the screw 16a been loosened so that the rod 15 can slide in the guide tube 14.
  • the cardboard precover 20 is placed at the top of the waste mass 7 and it is pushed in via the compression disc 17 and the rod 15 on which one acts by means of the lever 26. Au during this movement, the waste settles and the descent of the precover 20 is made possible by the deformation of its edges, the different sectors 21 of which have risen.
  • FIG. 3a we see the barrel 6 placed in the half-hoop 4 and completely filled with a mass of waste 7 not packed.
  • the precover 20 is then installed in which radial slots 22 have been made, then the lever 26 is put in place as shown in FIG. 3b.
  • the lever is placed in the notch 28a located at the bottom of the support 10 and is in the position 26a shown in solid lines on the face.
  • the last cycle in which the waste is placed at the top of the barrel 6, it is in the notch 28b that the end is placed.
  • Figure 3c shows the interior of the barrel after the first compaction cycle.
  • the precover 20 which is immobilized because its edges, equipped with radial slots 22, are blocked in the groove 8a which is the first groove from the bottom of the barrel.
  • the method and the device according to the invention have numerous advantages, the first of which is an increase in the yield of the barrel filling operations thanks to a filling rate three to four times higher than the usual filling rates.
  • the number of drums used is reduced, as well as the transport costs, since a single container is sufficient where three or four were needed with the methods of the prior art.
  • the contamination is limited because the waste thus stored is not very active and the cardboard precover is sufficient to limit the contamination by the temporary closure that it provides between two compaction cycles.
  • the operator does not directly handle the contaminated products and finally, the device is of a very simple construction, therefore inexpensive, and can possibly be modified for the simultaneous filling of several drums.
  • the lever 26 can optionally be replaced by an electrical, hydraulic or pneumatic device, allowing the displacement of the rod 15 under the same conditions as those which have been described previously.
  • Another improvement of the invention may consist in using a device for recovering contaminated air trapped in the volume between the cover 18 and the precover 20 during the compression operation, to be sent to an outlet filter of protection.

Abstract

La présente invention a pour object un procédé et un dispositif pour le stockage par compactage de déchets contaminés. Les déchets étant placés dans un fût (6), on les comprime en enfonçant dans le fût (6) un précouvercle (20) dont les bords sont rendus déformables afin d'empêcher une remontée du précouvercle (20) par blocage de ses bords sur les parois du fût (6), notamment par engagement dans des gorges (8) ménagées dans ces parois, puis on recommence le cycle jusqu'à remplissage complet du fût. Application au stockage de déchets radioactifs.The object of the present invention is a method and a device for the storage by compaction of contaminated waste. The waste being placed in a barrel (6), it is compressed by pushing into the barrel (6) a precover (20) whose edges are made deformable in order to prevent a rise of the precover (20) by blocking its edges on the walls of the barrel (6), in particular by engaging in grooves (8) formed in these walls, then the cycle is repeated until the barrel is completely filled. Application to the storage of radioactive waste.

Description

La présente invention est relative à un procédé et un dispositif pour le stockage de matériaux souples contaminés. Plus précisément, elle a pour objet un procédé et un dispositif permettant d'augmenter la quantité de produits stockés dans un volume donné.The present invention relates to a method and a device for the storage of contaminated flexible materials. More specifically, it relates to a method and a device for increasing the quantity of products stored in a given volume.

Habituellement, dans les laboratoires ou les milieux hospitaliers, les objets souples contaminés (blouses, combinaisons, surbottes, gants, cotons, chiffons, vinyle, etc.) font l'objet d'un stockage, soit en vue d'un traitement ultérieur de décontamination, soit en vue de leur évacuation dans une zone de stockage de déchets. Ces objets sont généralement déposés par les utilisateurs dans des fûts métalliques pour les soustraire aux conditions extérieures et localiser une contamination éventuelle. Une fois fermés, ces fûts sont transportés vers les lieux de traitement ou de stockage.Usually, in laboratories or hospitals, contaminated flexible objects (gowns, coveralls, overboots, gloves, cottons, rags, vinyl, etc.) are stored, either for further processing. decontamination, either for disposal in a waste storage area. These objects are generally deposited by users in metal drums to protect them from external conditions and locate possible contamination. Once closed, these drums are transported to places of treatment or storage.

Cette façon de faire présente l'inconvénient que les objets ainsi mis au rebut ne peuvent pas être tassés dans les fûts en raison de leur souplesse ou de leur élasticité, et, par conséquent, c'est une masse relativement faible de déchets qui peut être stockée dans un volume donné.This procedure has the disadvantage that the discarded objects cannot be packed in the drums because of their flexibility or elasticity, and therefore it is a relatively small mass of waste that can be stored in a given volume.

La présente invention a justement pour but d'améliorer le rendement de cette opération en permettant de stocker un grand nombre de déchets dans un fût de volume donné.The object of the present invention is precisely to improve the efficiency of this operation by making it possible to store a large number of waste in a barrel of given volume.

Selon la principale caractéristique du procédé objet de l'invention, celui-ci comprend les étapes suivantes :

  • - on place les déchets dans un fût,
  • - on dispose, au-dessus des déchets, un précouvercle de diamètre légèrement supérieur à celui du fût et dont les bords ont été rendus déformables,
  • - on enfonce le précouvercle dans le fût afin de compacter les déchets, le précouvercle étant empêché de remonter grâce au blocage de ses bords sur les parois du fût, et
  • - on recommence le cycle en mettant à nouveau des déchets dans le fût, jusqu'à remplissage complet de celui-ci.
According to the main characteristic of the process which is the subject of the invention, it comprises the following steps:
  • - the waste is placed in a barrel,
  • - there is, above the waste, a precover with a diameter slightly greater than that of the barrel and the edges of which have been made deformable,
  • - the precover is pressed into the barrel in order to compact the waste, the precover being prevented from rising thanks to the blocking of its edges on the walls of the barrel, and
  • - the cycle is started again by putting waste back into the barrel, until it is completely filled.

De préférence, le fût comporte des gorges et le blocage des bords du précouvercle s'effectue dans ces gorges.Preferably, the barrel has grooves and the locking of the edges of the precover takes place in these grooves.

Dans le mode préféré de mise en oeuvre, on utilise comme précouvercle un disque en carton sur les bords duquel on a ménagé des fentes radiales.In the preferred embodiment, a cardboard disc is used as a precover on the edges of which radial slots have been provided.

L'invention a également pour objet un dispositif pour la mise en oeuvre de ce procédé. Selon la principale caractéristique de ce dispositif, celui-ci comporte d'une part des moyens de mise en place du fût et d'autre part des moyens d'application d'une pression sur le précouvercle.The invention also relates to a device for implementing this method. According to the main characteristic of this device, it comprises on the one hand means for positioning the barrel and on the other hand means for applying pressure to the precover.

Dans le mode de réalisation préféré, les moyens de mise en place du fût comprennent un montant vertical sur lequel est monté un arceau semi-circulaire dont le diamètre correspond à celui du fût.In the preferred embodiment, the means for positioning the barrel comprise a vertical upright on which is mounted a semi-circular arch, the diameter of which corresponds to that of the barrel.

Suivant une autre caractéristique de ce dispositif, les moyens permettant d'appliquer une pression sur le précouvercle comprennent :

  • - un support vertical,
  • - un bras mobile en rotation autour d'un axe vertical solidaire dudit support,
  • - une tige coulissante pouvant coulisser à travers un tube-guide monté à une extrémité du bras,
  • - un disque de compression monté à une extrémité de la tige coulissante, et
  • - un levier permettant d'exercer une force sur l'autre extrémité de la tige coulissante.
According to another characteristic of this device, the means making it possible to apply pressure to the precover include:
  • - a vertical support,
  • - an arm movable in rotation about a vertical axis integral with said support,
  • - a sliding rod which can slide through a guide tube mounted at one end of the arm,
  • - a compression disk mounted at one end of the sliding rod, and
  • - a lever allowing to exert a force on the other end of the sliding rod.

De préférence ledit montant et ledit support sont confondus ou bien le support est fixé sur le montant.Preferably said amount and said support are combined or the support is fixed to the amount.

L'invention apparaîtra mieux à la lecture de la description qui va suivre d'un exemple de réalisation, description donnée à titre purement illlustratif et nullement limitatif, en référence aux dessins annexés dans lesquels :

  • - la figure 1 est une vue schématique en perspective du dispositif objet de l'invention ;
  • - la figure 2 est une vue schématique en coupe verticale de ce même dispositif montrant comment les déchets sont tassés à l'intérieur du fût ; et
  • - les figures 3a à 3c sont des vues schématiques en perspective illustrant les différentes phases d'un cycle de tassement.
The invention will appear better on reading the description which follows of an exemplary embodiment, description given purely by way of illustration and in no way limiting, with reference to the appended drawings in which:
  • - Figure 1 is a schematic perspective view of the device object of the invention;
  • - Figure 2 is a schematic vertical sectional view of the same device showing how the waste is packed inside the barrel; and
  • - Figures 3a to 3c are schematic perspective views illustrating the different phases of a compaction cycle.

La figure 1 montre le dispositif objet de l'invention qui se compose essentiellement d'un montant vertical 2 sur lequel est fixé un demi-arceau 4 dont le diamètre correspond au diamètre du fût 6, représenté en traits mixtes, dans lequel on désire tasser les déchets. Celui-ci est un fût métallique d'un type couramment utilisé dans le commerce et qui présente, régulièrement réparties suivant son axe, des gorges telles que 8 faisant saillie à l'extérieur. On voit encore sur la figure un support vertical 10 fixé à la partie supérieure du montant 2, le support 10 étant solidaire d'un bras horizontal 12 dont l'extrémité opposée au bras 10 comporte un tube-guide 14 dans lequel peut coulisser verticalement une tige 15. Cette dernière peut être fixée dans le tube-guide 14 grâce à un moyen de fixation, par exemple une vis 16. Un couvercle 18, identique à ceux qui sont utilisés sur les fûts, a été percé en son centre afin de pouvoir être enfilé sur la tige 15 et il est retenu par un disque de compression 17 vissé à la partie inférieure de cette dernière, comme cela est illustré à la figure 2.Figure 1 shows the device object of the invention which consists essentially of a vertical upright 2 on which is fixed a half-hoop 4 whose diameter corresponds to the diameter of the barrel 6, shown in phantom, in which one wishes to pack waste. This is a metal barrel of a type commonly used in trade and which has, regularly distributed along its axis, grooves such as 8 projecting outside. We also see in the figure a vertical support 10 fixed to the upper part of the upright 2, the support 10 being integral with a horizontal arm 12 whose end opposite to the arm 10 comprises a guide tube 14 in which can slide vertically a rod 15. The latter can be fixed in the guide tube 14 by means of a fixing means, for example a screw 16. A cover 18, identical to those used on drums, has been pierced in its center in order to be able be threaded on the rod 15 and it is retained by a compression disc 17 screwed to the lower part of this last, as shown in Figure 2.

La figure 1 montre également le précouvercle en carton 20 qui est utilisé pour chaque cycle de tassement des déchets dans le fût 6. Comme on peut le voir sur la figure, le diamètre du précouvercle 20 est légèrement supérieur au diamètre intérieur du fût 6, mais on a prévu sur ses bords des fentes radiales telles que 22 afin de pouvoir l'enfoncer dans le fût 6 grâce à la déformation de ses bords : en effet, les parties 21 comprises entre deux fentes radiales 22 se relèvent au cours de la descente. Enfin, la tige 15 se termine à sa partie supérieure par un étrier 24 dans lequel peut être introduit un levier 26 représenté schématiquement en traits mixtes sur la figure. Des encoches 28 ménagées dans le support vertical 10 servent de points d'appui au levier 26.FIG. 1 also shows the cardboard precover 20 which is used for each compacting cycle of the waste in the barrel 6. As can be seen in the figure, the diameter of the precover 20 is slightly greater than the inside diameter of the barrel 6, but radial slots such as 22 have been provided on its edges so that it can be inserted into the barrel 6 thanks to the deformation of its edges: in fact, the parts 21 comprised between two radial slots 22 are raised during the descent. Finally, the rod 15 ends at its upper part by a stirrup 24 into which can be introduced a lever 26 shown schematically in phantom in the figure. Notches 28 formed in the vertical support 10 serve as support points for the lever 26.

Le déroulement d'un cycle de tassement des déchets est illustré sur la vue en coupe de la figure 2. Sur cette figure, on voit le fût 6 placé à l'intérieur du demi-arceau 4 solidaire du montant 2. La vis 16 a été desserrée afin que la tige 15 puisse coulisser dans le tube-guide 14. On commence par introduire les déchets 7 sans les tasser dans le fût 6 jusqu'à remplissage complet de celui-ci. A ce moment, on place le précouvercle 20 en carton à la partie supérieure de la masse de déchets 7 et on l'enfonce par l'intermédiaire du disque de compression 17 et de la tige 15 sur laquelle on agit grâce au levier 26. Au cours de ce mouvement, les déchets se tassent et la descente du précouvercle 20 est rendu possible par la déformation de ses bords, dont les différents secteurs 21 se sont relevés. Lorsque les déchets ont été tassés au maximum, on relâche la pression exercée sur la tige 15 et on relève cette dernière. Les déchets gonflent du fait de leur élasticité, et repoussent le précouvercle 20 vers le haut, mais, lorsque que celui-ci arrive au niveau de l'une des gorges 8, on voit que ses bords ont tendance à reprendre leur position normale et le mouvement de remontée s'arrête car les bords du précouvercle 20 sont bloqués dans la gorge 8. Un blocage suffisant peut être obtenu par le simple frottement des bords du précouvercle sur la paroi latérale du fût ; il peut donc avoir lieu en dehors des gorges sur un fût qui en est muni, ou à un niveau quelconque sur un fût qui serait dépourvu de gorges. A ce moment, on recommence le cycle en mettant des déchets au-dessus du précouvercle 20 et l'on recommence l'opération avec un autre précouvercle jusqu'à remplissage complet du fût. On remarque également sur la figure 2 qu'au cours de chaque cycle de tassement, le fût 6 est fermé par le couvercle 18 troué en son centre puisque celui-ci a été enfilé sur la tige 15 avant que l'on ne visse le disque de compression 17 à la base de celle-ci.The progress of a compaction cycle of the waste is illustrated in the sectional view of FIG. 2. In this figure, we see the barrel 6 placed inside the half-hoop 4 secured to the upright 2. The screw 16a been loosened so that the rod 15 can slide in the guide tube 14. We begin by introducing the waste 7 without compacting it in the barrel 6 until it is completely filled. At this time, the cardboard precover 20 is placed at the top of the waste mass 7 and it is pushed in via the compression disc 17 and the rod 15 on which one acts by means of the lever 26. Au during this movement, the waste settles and the descent of the precover 20 is made possible by the deformation of its edges, the different sectors 21 of which have risen. When the waste has been packed to the maximum, the pressure exerted on the rod 15 is released and the latter is raised. The waste swells due to its elasticity, and pushes the precover 20 upwards, but when this arrives at one of the grooves 8, it can be seen that its edges tend to return to their normal position and the upward movement stops because the edges of the precover 20 are blocked in the groove 8. Sufficient blocking can be obtained by simply rubbing the edges of the precover on the side wall of the barrel; it can therefore take place outside the grooves on a barrel which is provided with it, or at any level on a barrel which is devoid of grooves. At this time, the cycle is restarted by putting waste above the precover 20 and the operation is repeated with another precover until the barrel is completely filled. Note also in Figure 2 that during each compaction cycle, the barrel 6 is closed by the cover 18 with a hole in the center since it has been threaded on the rod 15 before the disc is screwed compression 17 at the base thereof.

Lorsque le remplissage est terminé, le fût est définitivement fermé avec son couvercle étanche.When the filling is finished, the barrel is definitively closed with its tight lid.

Les figures 3a à 3c résument les différentes étapes du procédé objet de l'invention. Sur la figure 3a, on voit le fût 6 placé dans le demi-arceau 4 et complètement rempli d'une masse de déchets 7 non tassés. On installe ensuite le précouvercle 20 dans lequel ont été ménagées des fentes radiales 22, puis on met en place le levier 26 comme indiqué sur la figure 3b. Lors de la première compression, qui correspond au tassement des déchets dans la partie la plus basse du fût 6, le levier est placé dans l'encoche 28a située à la partie inférieure du support 10 et se trouve dans la position 26a représentée en traits pleins sur la figure. Lors du dernier cycle, dans lequel les déchets sont placés à la partie supérieure du fût 6, c'est dans l'encoche 28b qu'on place l'extrémité de ce levier, qui est alors dans la position 26b représentée schématiquement en traits mixtes. Enfin, la figure 3c montre l'intérieur du fût après le premier cycle de tassement. On voit, à l'intérieur du fût 6, le précouvercle 20 qui est immobilisé car ses bords, équipés des fentes radiales 22, sont bloqués dans la gorge 8a qui est la première gorge à partir de la partie basse du fût.Figures 3a to 3c summarize the different steps of the process which is the subject of the invention. In Figure 3a, we see the barrel 6 placed in the half-hoop 4 and completely filled with a mass of waste 7 not packed. The precover 20 is then installed in which radial slots 22 have been made, then the lever 26 is put in place as shown in FIG. 3b. During the first compression, which corresponds to the compaction of the waste in the lowest part of the barrel 6, the lever is placed in the notch 28a located at the bottom of the support 10 and is in the position 26a shown in solid lines on the face. During the last cycle, in which the waste is placed at the top of the barrel 6, it is in the notch 28b that the end is placed. mite this lever, which is then in position 26b shown schematically in phantom. Finally, Figure 3c shows the interior of the barrel after the first compaction cycle. We see, inside the barrel 6, the precover 20 which is immobilized because its edges, equipped with radial slots 22, are blocked in the groove 8a which is the first groove from the bottom of the barrel.

Le procédé et le dispositif selon l'invention présentent de nombreux avantages dont le premier est une augmentation du rendement des opérations de remplissage des fûts grâce à un taux de remplissage supérieur de trois à quatre fois aux taux de remplissage habituels. D'autre part, on diminue le nombre de fûts utilisés, ainsi que les frais de transport, puisqu'un seul récipient suffit là où il en fallait trois ou quatre avec les méthodes de l'art antérieur. D'autre part, la contamination est limitée car les déchets ainsi stockés ne sont pas très actifs et le précouvercle en carton suffit à limiter la contamination par la fermeture provisoire qu'il procure entre deux cycles de tassement. De plus, l'opérateur ne manipule pas directement les produits contaminés et enfin, le dispositif est d'une construction très simple, donc peu coûteuse, et peut éventuellement être modifié pour le remplissage simultané de plusieurs fûts.The method and the device according to the invention have numerous advantages, the first of which is an increase in the yield of the barrel filling operations thanks to a filling rate three to four times higher than the usual filling rates. On the other hand, the number of drums used is reduced, as well as the transport costs, since a single container is sufficient where three or four were needed with the methods of the prior art. On the other hand, the contamination is limited because the waste thus stored is not very active and the cardboard precover is sufficient to limit the contamination by the temporary closure that it provides between two compaction cycles. In addition, the operator does not directly handle the contaminated products and finally, the device is of a very simple construction, therefore inexpensive, and can possibly be modified for the simultaneous filling of several drums.

Bien entendu, l'invention ne se limite pas au seul mode de réalisation qui vient d'être décrit et on peut envisager des variantes sans sortir pour autant du cadre de l'invention.Of course, the invention is not limited to the single embodiment which has just been described and it is possible to envisage variants without thereby departing from the scope of the invention.

Par exemple, on peut adapter la forme et les dimensions des différents éléments du dispositif en fonction des fûts utilisés ou choisir un autre matériau que le carton pour le précouvercle 20, l'essentiel étant qu'on puisse rendre ses bords déformables afin de permettre son enfoncement dans le fût et son blocage sur les parois ou dans les gorges de celui-ci.For example, we can adapt the shape and dimensions of the different elements of the device according to the drums used or choose a material other than cardboard for the precover 20, the main thing being that we can make its edges deformable to allow its insertion into the barrel and its blocking on the walls or in the grooves thereof.

On peut également placer à l'intérieur du fût un sac en matière plastique suffisamment résistant, éliminer le disque de compression en utilisant un précouvercle plus rigide, et adopter pour l'appareil une configuration non verticale, horizontale ou oblique.You can also place a sufficiently resistant plastic bag inside the barrel, eliminate the compression disk using a more rigid precover, and adopt a non-vertical, horizontal or oblique configuration for the device.

Le levier 26 peut être éventuellement remplacé par un dispositif électrique, hydraulique ou pneumatique, permettant le déplacement de la tige 15 dans les mêmes conditions que celles qui ont été décrites précédemment.The lever 26 can optionally be replaced by an electrical, hydraulic or pneumatic device, allowing the displacement of the rod 15 under the same conditions as those which have been described previously.

Une autre amélioration de l'invention peut consister à utiliser un dispositif de récupération de l'air contaminé emprisonné dans le volume compris entre le couvercle 18 et le précouvercle 20 lors de l'opération de compression, pour être envoyé sur un filtre de sortie de protection.Another improvement of the invention may consist in using a device for recovering contaminated air trapped in the volume between the cover 18 and the precover 20 during the compression operation, to be sent to an outlet filter of protection.

Claims (8)

1. Procédé de stockage par compactage de déchets (7) constitués par des matériaux souples contaminés dans un fût (6), caractérisé en ce qu'il comprend les étapes suivantes : - on place les déchets (7) dans le fût (6), - on dispose, au-dessus des déchets, un précouvercle (20) de diamètre légèrement supérieur à celui du fût (6) et dont les bords ont été rendus déformables, - on enfonce le précouvercle (20) dans le fût (6) afin de compacter les déchets, le précouvercle (20) étant empêché de remonter grâce au blocage de ses bords sur les parois du fût (6), et - on recommence le cycle en mettant à nouveau des déchets dans le fût (6), jusqu'à remplissage complet de celui-ci. 1. A method of storage by compacting waste (7) consisting of flexible materials contaminated in a drum (6), characterized in that it comprises the following steps: - the waste (7) is placed in the barrel (6), - there is, above the waste, a precover (20) of diameter slightly greater than that of the barrel (6) and the edges of which have been made deformable, - the precover (20) is pressed into the barrel (6) in order to compact the waste, the precover (20) being prevented from rising thanks to the blocking of its edges on the walls of the barrel (6), and - We start the cycle again by putting waste in the barrel (6), until it is completely filled. 2. Procédé selon la revendication 1, caractérisé en ce qu'on utilise comme précouvercle un disque en carton (20) sur les bords duquel on a ménagé des fentes radiales (22).2. Method according to claim 1, characterized in that a cardboard disc (20) is used as precover on the edges of which radial slots (22) have been provided. 3. Procédé selon l'une au moins des revendications 1 et 2, caractérisé en ce que l'on utilise un fût dont la paroi latérale est munie de gorges (8) et en ce que le blocage du précouvercle s'effectue dans ces gorges.3. Method according to at least one of claims 1 and 2, characterized in that a barrel is used whose side wall is provided with grooves (8) and in that the blocking of the precover takes place in these grooves . 4. Dispositif pour la mise en oeuvre du procédé selon la revendication 1, caractérisé en ce qu'il comporte, d'une part des moyens de mise en place du fût (6) et d'autre part des moyens d'application d'une pression sur le précouvercle (20).4. Device for implementing the method according to claim 1, characterized in that it comprises, on the one hand means for positioning the barrel (6) and on the other hand means for applying pressure on the precover (20). 5. Dispositif selon la revendication 4, caractérisé en ce que les moyens de mise en place du fût (6) comprennent un montant vertical (2) sur lequel est monté un arceau semi-circulaire (4) dont le diamètre correspond à celui du fût (6).5. Device according to claim 4, characterized in that the means for positioning the barrel (6) comprise a vertical upright (2) on which is mounted a semi-circular arch (4) whose diameter tre corresponds to that of the barrel (6). 6. Dispositif selon la revendication 4, caractérisé en ce que les moyens permettant d'appliquer une pression sur le précouvercle (20) comprennent : - un support vertical, - un bras (12) mobile en rotation autour d'un axe vertical solidaire dudit support, - une tige coulissante (15) pouvant coulisser à travers un tube-guide (14) monté à une extrémité du bras (12), et - un levier (26) permettant d'exercer une force sur une extrémité de la tige coulissante (15). 6. Device according to claim 4, characterized in that the means making it possible to apply pressure to the precover (20) comprise: - a vertical support, an arm (12) movable in rotation about a vertical axis integral with said support, a sliding rod (15) which can slide through a guide tube (14) mounted at one end of the arm (12), and - A lever (26) allowing to exert a force on one end of the sliding rod (15). 7. Dispositif selon la revendication 6, caractérisé en ce qu'il comporte un disque de compression (17) monté à l'autre extrémité de la tige coulissante (15).7. Device according to claim 6, characterized in that it comprises a compression disc (17) mounted at the other end of the sliding rod (15). 8. Dispositif selon les revendications 5 et 6, caractérisé en ce que ledit montant (2) et ledit support sont confondus.8. Device according to claims 5 and 6, characterized in that said upright (2) and said support are combined.
EP83401873A 1982-09-28 1983-09-26 Process and device for storing pliable contaminated materials by compacting Expired EP0105002B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8216285A FR2533743A1 (en) 1982-09-28 1982-09-28 METHOD AND DEVICE FOR STORAGE BY COMPACTION OF CONTAMINATED FLEXIBLE MATERIALS
FR8216285 1982-09-28

Publications (2)

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EP0105002A1 true EP0105002A1 (en) 1984-04-04
EP0105002B1 EP0105002B1 (en) 1987-04-01

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EP83401873A Expired EP0105002B1 (en) 1982-09-28 1983-09-26 Process and device for storing pliable contaminated materials by compacting

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US (1) US4564469A (en)
EP (1) EP0105002B1 (en)
DE (1) DE3370716D1 (en)
FR (1) FR2533743A1 (en)

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US4980094A (en) * 1988-02-26 1990-12-25 British Nuclear Fuel Plc Methods and apparatus for closing and charging radioactive waste containers
EP1124234A1 (en) * 2000-02-11 2001-08-16 Jesse Yang Method for sealing and packing toxic wastes
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DE3925866A1 (en) * 1989-08-04 1991-02-07 Friedhelm Schneider DEVICE FOR EMPTYING BARRELS WITH HIGH VISCOSITY CONTENT
EP0499335A3 (en) * 1991-02-14 1993-03-10 Russell Stanley Corporation Drum and process for handling drum liners
US5361692A (en) * 1992-10-13 1994-11-08 John Zimmer Compaction system for metal drums
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US5704404A (en) * 1995-07-25 1998-01-06 Balding, Jr.; William E. Method and device for compacting resilient waste materials for storage and disposal
FR2759058A1 (en) * 1997-02-06 1998-08-07 Cml Invest Procedure for packing materials, e.g. toxic industrial waste, by compacting
DE102012219076B4 (en) * 2012-10-19 2014-05-15 Areva Gmbh Hold-down device for nuclear reactor residuals and nuclear residual disposal method
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US4980094A (en) * 1988-02-26 1990-12-25 British Nuclear Fuel Plc Methods and apparatus for closing and charging radioactive waste containers
EP1124234A1 (en) * 2000-02-11 2001-08-16 Jesse Yang Method for sealing and packing toxic wastes
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AT522299A3 (en) * 2019-04-12 2020-11-15 Spiwak Michael Collection system for waste, in particular paper waste

Also Published As

Publication number Publication date
EP0105002B1 (en) 1987-04-01
DE3370716D1 (en) 1987-05-07
US4564469A (en) 1986-01-14
FR2533743A1 (en) 1984-03-30
FR2533743B1 (en) 1984-12-21

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