EP0175615A1 - Mobile mixing device - Google Patents

Mobile mixing device Download PDF

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Publication number
EP0175615A1
EP0175615A1 EP85401756A EP85401756A EP0175615A1 EP 0175615 A1 EP0175615 A1 EP 0175615A1 EP 85401756 A EP85401756 A EP 85401756A EP 85401756 A EP85401756 A EP 85401756A EP 0175615 A1 EP0175615 A1 EP 0175615A1
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EP
European Patent Office
Prior art keywords
head
turret
kneading
mixing
rotation
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
EP85401756A
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German (de)
French (fr)
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EP0175615B1 (en
Inventor
Xavier Augustin
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.)
TechnicAtome SA
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TechnicAtome SA
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Publication date
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Priority to AT85401756T priority Critical patent/ATE38917T1/en
Publication of EP0175615A1 publication Critical patent/EP0175615A1/en
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Publication of EP0175615B1 publication Critical patent/EP0175615B1/en
Expired legal-status Critical Current

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    • 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
    • G21F9/04—Treating liquids
    • G21F9/06—Processing
    • G21F9/16—Processing by fixation in stable solid media
    • 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
    • G21F9/008—Apparatus specially adapted for mixing or disposing radioactively contamined material
    • 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
    • G21F9/30—Processing
    • G21F9/301—Processing by fixation in stable solid media
    • G21F9/307—Processing by fixation in stable solid media in polymeric matrix, e.g. resins, tars

Definitions

  • the present invention relates to a mobile device for mixing at least two products from storage pots in drums equipped with internal kneading means which can be driven in rotation by a kneading head, via a coupling disconnectable.
  • the invention advantageously applies to the coating with an organic binder to the epoxy resins of solid particles such as spent ion exchange resins originating from the purification pots of the primary circuits of pressurized water nuclear reactors and storage pools. fuels.
  • the invention is not limited to this application and can be used in all cases where a mixture of the same products must be carried out successively in several drums or containers.
  • the present invention specifically relates to a mobile mixing device in which are carried out both the metering of the products, the transfer of these products into the barrels, their mixing and possibly the sealing of the barrels in a particularly compact installation which comes itself successively dock each of the drums, whose cost ⁇ operating personnel are significantly reduced, which presents no risk of leakage and which provides good protection of personnel for a speed of execution comparable to that of multi-station machines more efficient.
  • the size of the installation is five to six times less than that of a conventional multi-user installation and its cost is reduced by a factor of 2 or 3.
  • the fixed base comprises a sole in which the receptacles are formed and a cylindrical shell whose vertical axis coincides with the axis of rotation of the turret in which is received one pots.
  • the turret is then preferably supported by the upper edge of the cylindrical shell and has a rotating cover closing the shell and from which the pot received in the shell is suspended.
  • the mixing head is suspended from a bracket by a flexible link on which act the means for vertically moving the mixing head.
  • the turret can also com. take handling means of a barrel cover allowing the mixing head to be replaced by this cover when the head is released from the corresponding barrel by a rotation of the turret.
  • These means for handling the barrel cover include, for example, a second bracket pivotally supported about a vertical axis offset towards the mixing head relative to the axis of rotation of the turret.
  • the mobile coating installation shown in Figure 1 mainly consists of a fixed base 10 and a mobile turret 12 supported by the base 10 so as to be able to rotate around a vertical axis XX '.
  • the fixed base 10 comprises a sole 10a resting on the ground and having recesses in an arc 14 ( Figure 2) in which can be placed drums 16 intended to receive the coated products.
  • the recesses 14 are arranged so that the axes of the drums 16 placed in these recesses are arranged on the same cylinder of revolution of axis XX '. In the embodiment shown, only two recesses 14 are formed on the sole 10a, but it will easily be understood that the number of these recesses can be greater if it is desired to place more than two barrels simultaneously in the machine.
  • the base 10 further comprises a cylindrical ferrule 10b, the axis of which coincides with the vertical axis XX 'and which supports the turret 12 in a turning manner by its upper edge.
  • the mobile turret 12 for its part, comprises a metering pot 18 in which the ion exchange resins to be coated are metered and temporarily stored, two metering pots 20 serving for metering and temporarily storing the resin and the coating hardener, a mixing head 22, as well as flexible pipes 44, 46, 52 connecting each of the metering pots to this coating head and which will be described later in more detail.
  • the movable turret 1 2 comprises a support cover 24 rotatably mounted by means of a ball bearing in a crown 26 fixed in a removable manner, for example by means of screws on the upper edge of the cylindrical shell 10b.
  • the assembly constituted by the fixed base 10 and by the revolving cover 24 thus form a biological protection enclosure in which is received the metering pot 18 serving for temporarily storing the resin of which it is desired to make the coating.
  • the measuring jug 18 is suspended from the rotating cover 24 by a skirt 28 designed to serve as a retention in the event of a leak.
  • the skirt 28 is equipped with a humidity detector (not shown).
  • the rotating plug 24 serves as a base for a bracket 30 and a gantry 32 to which are suspended, by means of flanges 34, the metering pots 20 used for metering and temporarily storing the resin and the coating hardener.
  • the gantry 30 supports the mixing head 22. More precisely, the end of the gantry 30 is provided with a mad pulley 36 on which a cable 38 passes at the lower end of which the head 22 is hung, the other end of the cable 38 being fixed to the rod of a jack 40 whose body is integral with the bracket 30.
  • the arrangement which has just been described allows, by a rotation of the turret 12 about its vertical axis XX ', to bring the kneading head 22 alternately above each of the drums 16 received in the recesses 14, the setting in use of the venn 40 c. having the effect of moving the head 22 between a high position allowing the rotation of the turret and a low position in which the mixing head is coupled to the corresponding barrel.
  • the mixing head 22 and the drums 16 are produced in the manner described in French patent application No. 8400543 filed on January 3, 1984 for a device for coating particles by Mr. Henri LUMPP. For a detailed description of these elements, reference is therefore made to this patent application.
  • the mixing head 22 mainly consists of a geared motor assembly 22a capable of driving in rotation, by means of an electromagnetic coupling 22b, a vertical shaft 16a equipped with blades 16b and placed inside each of the drums 16.
  • the kneading head 22 further comprises a plug 22c closing off the upper face of the barrel and comprising passages into which the pipes connected to the pots 18 and 20 open.
  • the cover 22c completes the biological protection of the barrel. which is also provided by a transport shell 42 in which the barrel is housed.
  • a flow pipe 44 and a return pipe 46 connect the metering pot 18 containing the resin to be coated to the plug of the kneading head 22.
  • Each of the metering jars 20 respectively containing the resin and the coating hardener is connected to the plug of the mixing head 22 by a pipe 52, the transfer of the resin, then of the hardener, being effected by pushing with compressed air .
  • the stirring system constituted by the shaft 16a and by the blades 16b is actuated by the implementation of the motor 22a of the mixing head.
  • the electromagnetic coupling 22b is actuated in order to uncoupler the head 22 from the kneading members 16a internal to the barrel.
  • the head 22 is then raised by using the jack 40.
  • the mixing head 22 can then be brought above another barrel 16 placed in another recess 14 of the base 10 by the rotation of the turret 12 about its vertical axis XX '. This operation can be performed either manually using a pole, or by adding to the device a motorization system not shown.
  • the device according to the invention is equipped for this purpose with a second bracket 56 pivotally supported by the first bracket 30 around a vertical axis offset from the axis XX 'in the direction of the head. mixing 22.
  • this bracket 56 supports the plug 54 by means of a cable 58 which can move the plug between a high position and a low position under the action of a jack (not shown).
  • the axis of articulation of the bracket 56 on the bracket 30 is positioned so that the plug can be put in place on the barrel as soon as the kneading head 22 has cleared the opening of the latter under the effect the rotation of the turret 12.
  • the invention is not limited to a mobile coating device such as that which has just been described with reference to the figures but can be used in all cases where a mixing the same products must be carried out successively in several barrels, which occurs in particular in the chemical industry. From this point of view, it will be understood that all the characteristics of the device described linked to the dangerous and toxic nature of the products handled (biological protection structure in particular) can be eliminated when the products treated do not exhibit these characteristics.
  • the number of drums that can be docked on the machine can be greater than two without departing from the scope of the invention, just as the number of pots on board the mobile turret can be any number greater than or equal to two.
  • the invention applies regardless of the volume of the products to be mixed, the dimensions of the installation, and in particular of the metering pots and drums, which can be adapted both to the treatment of small quantities and of large quantities.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Accessories For Mixers (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)

Abstract

A mobile mixing device for at least two products coming from storage containers in barrels equipped with internal kneading means, which can be rotated by a kneading head, via a disconnectable coupling, wherein the device comprises a fixed stand having two receptacles able to receive the barrels and a turret supported by the stand, so that it can rotate about a vertical axis, said turret having the storage containers, the kneading head, at least one tube connecting each of the storage containers to the kneading head and means for vertically displacing the latter an upper position permitting a rotation of the turret in order to bring the said head successively above each of the barrels placed in the receptacles of the stand and a lower position in which the kneading means of the corresponding barrel are connected to the kneading head by said coupling.

Description

La présente invention se rapporte à un dispositif mobile permettant de mélanger au moins deux produits en provenance de pots de stockage dans des fûts équipés de moyens de malaxage internes pouvant être entraînés en rotation par une tête de malaxage, par l'intermédiaire d'un accouplement déconnectable.The present invention relates to a mobile device for mixing at least two products from storage pots in drums equipped with internal kneading means which can be driven in rotation by a kneading head, via a coupling disconnectable.

L'invention s'applique avantageusement à l'enrobage par un liant organique aux résines époxydes de particules solides telles que des résines échangeuses d'ions usés provenant des pots d'épuration des circuits primaires des réacteurs nucléaires à eau pressurisée et des piscines de stockage des combustibles. Toutefois, l'invention n'est pas limitée à cette application et peut être utilisée dans tous les cas où un mélange des mêmes produits doit être réalisé successivement dans plusieurs fûts ou conteneurs.The invention advantageously applies to the coating with an organic binder to the epoxy resins of solid particles such as spent ion exchange resins originating from the purification pots of the primary circuits of pressurized water nuclear reactors and storage pools. fuels. However, the invention is not limited to this application and can be used in all cases where a mixture of the same products must be carried out successively in several drums or containers.

Comme l'illustre en particulier la demande de brevet français n° 8400543 déposée le 3 janvier 1984 pour un dispositif pour l'enrobage de particules par Monsieur Henri LUMPP, il est connu dans le domaine de l'enrobage de particules de munir chacun des fûts de moyens de malaxage ou d'agitation internes pouvant être accouplés et désaccouplés à distance d'une tête de malaxage assurant à la fois l'introduction des produits à mélanger dans le fût et l'entraînement en rotation des moyens de malaxage interne à celui-ci. Lorsque l'agitation nécessaire à l'enrobage est terminée, la tête de malaxage est désaccouplée des moyens de malaxage internes et ces derniers restent de préférence à l'intérieur du fûtAs illustrated in particular by French patent application No. 8400543 filed on January 3, 1984 for a device for coating particles by Mr. Henri LUMPP, it is known in the field of coating particles to provide each of the barrels internal mixing or stirring means which can be coupled and uncoupled at a distance from a mixing head ensuring both the introduction of the products to be mixed into the barrel and the rotation drive of the internal mixing means therein this. When the agitation necessary for the coating is completed, the mixing head is uncoupled from the internal mixing means and the latter preferably remain inside the barrel

Dans ce dispositif connu, comme dans les dispositifs mélangeurs utilisés dans d'autres do maines techniques et notamment dans l'industrie chimique, le mélange s'effectue toujours à poste fixe, au niveau duquel on vient faire défiler les fûts successifs à remplir. En particulier, dans le cas de l'enrobage, cela implique que le poste de malaxage ou de mélange soit précédé de postes de dosage au niveau desquels s'effectue le dosage des différents produits à mélanger. L'existence de ces différents postes entraîne évidemment un encombrement important de l'installation, qui présente en outre un coût très élevé et nécessite un personnel relativement nombreux. En outre, la multiplication des postes et le défilement des fûts devant le poste de mélange rendent l'automatisation d'une telle installation délicate à réaliser.In this known device, as in the mixing devices used in other technical fields and in particular in the chemical industry, the mixing is always carried out at a fixed station, at the level of which the successive drums to be filled are scrolled. In particular, in the case of coating, this implies that the kneading or mixing station is preceded by dosing stations at which the dosing of the various products to be mixed takes place. The existence of these different positions obviously results in a large footprint of the installation, which also has a very high cost and requires a relatively large staff. In addition, the multiplication of stations and the scrolling of drums in front of the mixing station make the automation of such an installation difficult to perform.

De plus, lorsque les installations existantes sont destinées à traiter des produits dangereux ou toxiques, elles présentent pour inconvénients que la fermeture du fût n'est réalisée qu'au niveau du poste suivant et que la complexité de l'installation accroît sensiblement les risques de fuites.In addition, when the existing installations are intended to treat dangerous or toxic products, they have the drawbacks that the barrel is only closed at the next station and that the complexity of the installation significantly increases the risks of leaks.

La présente invention a précisément pour objet un dispositif de mélange mobile dans lequel s'effectuent à la fois le dosage des produits, le transfert de ces produits dans les fûts, leur mélange et éventuellement l'obturation des fûts dans une installation particulièrement compacte qui vient elle-même accoster successivement chacun des fûts, dont le coût ε le personnel d'exploitation sont sensiblement réduits, qui ne présente aucun risque de fuite et qui assure une bonne protection du personnel pour une rapidité d'exécution comparable à celle des machines multipostes les plus performantes.The present invention specifically relates to a mobile mixing device in which are carried out both the metering of the products, the transfer of these products into the barrels, their mixing and possibly the sealing of the barrels in a particularly compact installation which comes itself successively dock each of the drums, whose cost ε operating personnel are significantly reduced, which presents no risk of leakage and which provides good protection of personnel for a speed of execution comparable to that of multi-station machines more efficient.

A cet effet et conformément à l'invention, il est proposé un dispositif de mélange mobile d'au moins deux produits en provenance de pots de stockage dans des fûts équipés de moyens de malaxage internes aptes à être entraînés en rotation par une tête de malaxage, par l'intermédiaire d'un accouplement déconnectable, ce dispositif étant caractérisé en ce qu'il comprend :

  • - un socle fixe comportant deux réceptacles aptes à recevoir des fûts,
  • - une tourelle supportée par le socle de façon à pouvoir tourner autour d'un axe vertical, ladite tourelle comportant lesdits pots de stockage, la tête de malaxage, au moins une canalisation reliant chacun des pots de stockage à la tête de malaxage, et des moyens pour déplacer verticalement cette dernière entre une position haute autorisant une rotation de la tourelle afin d'amener ladite tête successivement au-dessus de chacun des fûts placés dans les réceptacles du socle, et une position basse dans laquelle les moyens de malaxage du fût correspondant sont reliés à la tête de malaxage par ledit accouplement.
To this end and in accordance with the invention, a device is proposed for mobile mixing of at least two products from storage pots in drums equipped with internal kneading means capable of being driven in rotation by a kneading head. , by means of a disconnectable coupling, this device being characterized in that it comprises:
  • - a fixed base comprising two receptacles capable of receiving drums,
  • a turret supported by the base so as to be able to rotate about a vertical axis, said turret comprising said storage pots, the mixing head, at least one pipe connecting each of the storage pots to the mixing head, and means for vertically moving the latter between a high position allowing rotation of the turret in order to bring said head successively above each of the barrels placed in the receptacles of the base, and a low position in which the kneading means of the corresponding barrel are connected to the mixing head by said coupling.

Grâce à une telle structure, l'encombrement de l'installation est cinq à six fois moins grand que celui d'une installation multipostes classique et son coût est réduit d'un facteur 2 ou 3.Thanks to such a structure, the size of the installation is five to six times less than that of a conventional multi-user installation and its cost is reduced by a factor of 2 or 3.

Selon un mode de réalisation particulier de l'invention, le socle fixe comprend une semelle dans laquelle sont formés les réceptacles et une virole cylindrique dont l'axe vertical est confondu avec l'axe de rotation de la tourelle dans laquelle est reçu l'un des pots. La tourelle est alors supportée de préférence par le bord supérieur de la virole cylindrique et comporte un couvercle tournant obturant la virole et auquel est suspendu le pot reçu dans la virole.According to a particular embodiment of the invention, the fixed base comprises a sole in which the receptacles are formed and a cylindrical shell whose vertical axis coincides with the axis of rotation of the turret in which is received one pots. The turret is then preferably supported by the upper edge of the cylindrical shell and has a rotating cover closing the shell and from which the pot received in the shell is suspended.

Selon un autre aspect de l'invention, la tête de malaxage est suspendue à une potence par un lien flexible sur lequel agissent les moyens pour déplacer verticalement la tête de malaxage.According to another aspect of the invention, the mixing head is suspended from a bracket by a flexible link on which act the means for vertically moving the mixing head.

Afin de permettre une obturation rapide des fûts dès que le mélange est réalisé, la tourelle peut aussi com. prendre des moyens de manutention d'un couvercle de fût permettant de remplacer la tête de malaxage par ce couvercle lorsque la tête est dégagée du fût correspondant par une rotation de la tourelle. Ces moyens de manutention du couvercle de fût comprennent par exemple une deuxième potence supportée de façon pivotante autour d'un axe vertical décalé vers la tête de malaxage par rapport à l'axe de rotation de la tourelle.In order to allow a rapid closure of the barrels as soon as the mixing is carried out, the turret can also com. take handling means of a barrel cover allowing the mixing head to be replaced by this cover when the head is released from the corresponding barrel by a rotation of the turret. These means for handling the barrel cover include, for example, a second bracket pivotally supported about a vertical axis offset towards the mixing head relative to the axis of rotation of the turret.

On décrira maintenant, à titre d'exempte non limitatif, un mode de réalisation préféré de l'invention en se référant aux dessins annexés dans lesquels :

  • - la figure 1 est une vue de côté, en coupe partieüe, d'un dispositif d'enrobage mobile réalisé conformément aux enseignements de la présente invention,
  • - la figure 2 est une vue de dessus du dispositif de la figure 1,
  • - la figure 3 est une vue de côté représentant schématiquement les canalisations reliant les pots et la tête de malaxage du dispositif des figures 1 et 2,
  • - la figure 4 est une vue en coupe verticale représentant de façon schématique le retrait de la tête de malaxage sur un fût et la mise en place d'un bouchon sur ce fût. et
  • - la figure 5 est une vue de dessus du dispositif illustrant de façon très schématique le retrait de la tête de malaxage et la mise en place d'un bouchon sur un fût.
A preferred embodiment of the invention will now be described, by way of non-limiting example, with reference to the appended drawings in which:
  • FIG. 1 is a side view, in partial section, of a mobile coating device produced in accordance with the teachings of the present invention,
  • FIG. 2 is a top view of the device in FIG. 1,
  • FIG. 3 is a side view schematically showing the pipes connecting the pots and the mixing head of the device in FIGS. 1 and 2,
  • - Figure 4 is a vertical sectional view schematically showing the withdrawal of the kneading head on a barrel and the establishment of a plug on this barrel. and
  • - Figure 5 is a top view of the device illustrating very schematically the removal of the kneading head and the establishment of a plug on a barrel.

L'installation d'enrobage mobile représentée sur la figure 1 se compose principalement d'un socle fixe 10 et d'une tourelle mobile 12 supportée par le socle 10 de façon à pouvoir tourner autour d'un axe vertical XX'.The mobile coating installation shown in Figure 1 mainly consists of a fixed base 10 and a mobile turret 12 supported by the base 10 so as to be able to rotate around a vertical axis XX '.

Le socle fixe 10 comprend une semelle 10a reposant sur le sol et présentant des évidements en arc de cercle 14 (figure 2) dans lesquels peuvent être placés des fûts 16 destinés à recevoir les produits enrobés. Les évidements 14 sont disposés de telle sorte que les axes des fûts 16 placés dans ces évidements sont disposés sur un même cylindre de révolution d'axe XX'. Dans le mode de réalisation représenté, seuls deux évidements 14 sont formés sur la semelle 10a, mais on comprendra aisément que le nombre de ces évidements peut être plus grand si l'on désire placer plus de deux fûts simultanément dans la machine.The fixed base 10 comprises a sole 10a resting on the ground and having recesses in an arc 14 (Figure 2) in which can be placed drums 16 intended to receive the coated products. The recesses 14 are arranged so that the axes of the drums 16 placed in these recesses are arranged on the same cylinder of revolution of axis XX '. In the embodiment shown, only two recesses 14 are formed on the sole 10a, but it will easily be understood that the number of these recesses can be greater if it is desired to place more than two barrels simultaneously in the machine.

Le socle 10 comprend de plus une virole cylindrique 10b dont l'axe est confondu avec l'axe vertical XX' et qui supporte de façon toumante la tourelle 12 par son rebord supérieur.The base 10 further comprises a cylindrical ferrule 10b, the axis of which coincides with the vertical axis XX 'and which supports the turret 12 in a turning manner by its upper edge.

La tourelle mobile 12 comprend quant à elle un pot doseur 18 dans lequel sont dosées et stockées provisoirement les résines échangeuses d'ions à enrober, deux pots de dosage 20 servant à doser et à stocker provisoirement la résine et le durcisseur d'enrobage, une tête de malaxage 22, ainsi que des canalisations souples 44, 46, 52 reliant chacun des pots doseurs à cette tête d'enrobage et qui seront décrites ultérieurement plus en dé tail.The mobile turret 12, for its part, comprises a metering pot 18 in which the ion exchange resins to be coated are metered and temporarily stored, two metering pots 20 serving for metering and temporarily storing the resin and the coating hardener, a mixing head 22, as well as flexible pipes 44, 46, 52 connecting each of the metering pots to this coating head and which will be described later in more detail.

De façon plus précise, la tourelle mobile 12 comprend un couvercle de supportage 24 monté de façon tournante par l'intermédiaire d'un roulement à bille dans une couronne 26 fixée de façon démontable, par exemple au moyen de vis sur le rebord supérieur de la virole cylindrique 10b. L'ensemble constitué par le socle fixe 10 et par le couvercle tournant 24 forment ainsi une enceinte de protection biologique dans laquelle est reçu le pot doseur 18 servant à stocker provisoirement la résine dont on désire réaliser l'enrobage.More specifically, the movable turret 1 2 comprises a support cover 24 rotatably mounted by means of a ball bearing in a crown 26 fixed in a removable manner, for example by means of screws on the upper edge of the cylindrical shell 10b. The assembly constituted by the fixed base 10 and by the revolving cover 24 thus form a biological protection enclosure in which is received the metering pot 18 serving for temporarily storing the resin of which it is desired to make the coating.

Le pot doseur 18 est suspendu au couvercle tournant 24 par une jupe 28 conçue pour servir de rétention en cas de fuite. De préférence, la jupe 28 est équipée d'un détecteur d'humidité (non représenté). Le bouchant tournant 24 sert de socle à une potence 30 et à un portique 32 auxquels sont suspendus, par l'intermédiaire de brides 34, les pots doseurs 20 servant à doser et à stocker provisoirement la résine et le durcisseur d'enrobage.The measuring jug 18 is suspended from the rotating cover 24 by a skirt 28 designed to serve as a retention in the event of a leak. Preferably, the skirt 28 is equipped with a humidity detector (not shown). The rotating plug 24 serves as a base for a bracket 30 and a gantry 32 to which are suspended, by means of flanges 34, the metering pots 20 used for metering and temporarily storing the resin and the coating hardener.

Par son extrémité placée en porte-à-faux au-delà de la virole cylindrique 10b du socle, le portique 30 supporte la tête de malaxage 22. De façon plus précise, l'extrémité du portique 30 est munie d'une poulie folle 36 sur laquelle passe un câble 38 à l'extrémité inférieure duquel est accrochée la tête 22, l'autre extrémité du câble 38 étant fixée à la tige d'un vérin 40 dont le corps est solidaire de la potence 30.By its end placed in overhang beyond the cylindrical shell 10b of the base, the gantry 30 supports the mixing head 22. More precisely, the end of the gantry 30 is provided with a mad pulley 36 on which a cable 38 passes at the lower end of which the head 22 is hung, the other end of the cable 38 being fixed to the rod of a jack 40 whose body is integral with the bracket 30.

La disposition qui vient d'être décrite permet, par une rotation de la tourelle 12 autour de son axe vertical XX', d'amener la tête de malaxage 22 alternativement au-dessus de chacun des fûts 16 reçus dans les évidements 14, la mise en oeuvre du venn 40 c.yant pour effet de déplacer la tête 22 entre une position haute permettant la rotation de la tourelle et une position basse dans laquelle la tête de malaxage est accouplée au fût correspondant.The arrangement which has just been described allows, by a rotation of the turret 12 about its vertical axis XX ', to bring the kneading head 22 alternately above each of the drums 16 received in the recesses 14, the setting in use of the venn 40 c. having the effect of moving the head 22 between a high position allowing the rotation of the turret and a low position in which the mixing head is coupled to the corresponding barrel.

La tête de malaxage 22 et les fûts 16 sont réalisés de la manière décrite dans la demande de brevet français n° 8400543 déposée le 3 janvier 1984 pour un dispositif pour l'enrobage de particules par Monsieur Henri LUMPP. Pour une description détaillee de ces éléments, on se reportera donc à cette demande de brevet. Pour la bonne compréhension de l'invention, on rappellera simplement que la tête de malaxage 22 se compose principalement d'un ensemble motoréducteur 22a apte à entraîner en rotation, par l'intermédiaire d'un accouplement électromagnétique 22b, un arbre vertical 16a équipé de pales 16b et disposé à l'intérieur de chaçun des fûts 16.The mixing head 22 and the drums 16 are produced in the manner described in French patent application No. 8400543 filed on January 3, 1984 for a device for coating particles by Mr. Henri LUMPP. For a detailed description of these elements, reference is therefore made to this patent application. For a good understanding of the invention, it will simply be recalled that the mixing head 22 mainly consists of a geared motor assembly 22a capable of driving in rotation, by means of an electromagnetic coupling 22b, a vertical shaft 16a equipped with blades 16b and placed inside each of the drums 16.

La tête de malaxage 22 comprend de plus un bouchon 22c venant obturer la face supérieure du fût et comportant des passages dans lesquels débouchent les tuyauteries reliées aux pots 18 et 20.The kneading head 22 further comprises a plug 22c closing off the upper face of the barrel and comprising passages into which the pipes connected to the pots 18 and 20 open.

Lorsque la tête de malaxage 22 est accouplée à un fût 16, le couvercle 22c complète la protection biologique du fût. qui est assurée par ailleurs par une coque de transport 42 dans laquelle est logé le fût.When the mixing head 22 is coupled to a barrel 16, the cover 22c completes the biological protection of the barrel. which is also provided by a transport shell 42 in which the barrel is housed.

Comme l'illustre en particulier la figure 3, une tuyauterie aller 44 et une tuyauterie retour 46 relient le pot doseur 18 contenant la résine à enrober au bouchon de la tête de malaxage 22. Ces tuyauteries 44 et 46, ainsi que des tuyauteries telles que 48 servant à amener la résine à enrober dans le pot doseur 18, traversent le bouchon tournant 24.As illustrated in particular in FIG. 3, a flow pipe 44 and a return pipe 46 connect the metering pot 18 containing the resin to be coated to the plug of the kneading head 22. These pipes 44 and 46, as well as pipes such as 48 used to bring the resin to be coated into the dosing pot 18, pass through the rotary plug 24.

La résine et l'eau de transfert à laquelle elle est mélangée sont transférées dans le fût 16 par la canalisation 44 et au travers de la tête 22 par siphonnage et sous l'action d'air comprimé injecté dans le pot 18. L'essorage des résines transférées dans le fût 16 est ensuite réalisé par la canalisation 46, qui comporte à cet effet une pompe 50. Pour plus de détails concernant ces opérations de transfert, on se reportera à la demande de brevet français n° 8413935 déposée le 11 septembre 1984 parTechnica- tome.The resin and the transfer water to which it is mixed are transferred into the barrel 16 by the pipe 44 and through the head 22 by siphoning and under the action of compressed air injected into the pot 18. Spinning resins transferred to the barrel 16 is then produced by the line 46, which for this purpose comprises a pump 50. For more details concerning these transfer operations, reference is made to French patent application No. 8413935 filed on September 11 1984 by Technology.

Chacun des pots doseurs 20 contenant respectivement la résine et le durcisseur d'enrobage est relié au bouchon de la tête de malaxage 22 par une canalisation 52, le transfert de la résine, puis du durcisseur, s'effectuant par poussée à l'air comprimé.Each of the metering jars 20 respectively containing the resin and the coating hardener is connected to the plug of the mixing head 22 by a pipe 52, the transfer of the resin, then of the hardener, being effected by pushing with compressed air .

Pendant la phase d'essorage de la résine à enrober ainsi que pendant l'injection de la résine d'enrobage et du durcisseur, le système d'agitation constitué par l'arbre 16a et par les pales 16b est actionné par la mise en oeuvre du moteur 22a de la tête de malaxage.During the spin phase of the resin to be coated as well as during the injection of the coating resin and the hardener, the stirring system constituted by the shaft 16a and by the blades 16b is actuated by the implementation of the motor 22a of the mixing head.

Lorsque ces opérations sont terminées, l'accouplement électromagnétique 22b est actionné afin de désaccoupler la tête 22 des organes de malaxage 16a internes au fût. On relève ensuite la tête 22 par la mise en oeuvre du vérin 40.When these operations are completed, the electromagnetic coupling 22b is actuated in order to uncoupler the head 22 from the kneading members 16a internal to the barrel. The head 22 is then raised by using the jack 40.

La tête de malaxage 22 peut alors être amenée au-dessus d'un autre fût 16 placé dans un autre évidement 14 du socle 10 par la rotation de la tourelle 12 autour de son axe vertical XX'. Cette opération peut être réalisée soit manuellement à l'aide d'une perche, soit en adjoignant à l'appareil un système de motorisation non représenté.The mixing head 22 can then be brought above another barrel 16 placed in another recess 14 of the base 10 by the rotation of the turret 12 about its vertical axis XX '. This operation can be performed either manually using a pole, or by adding to the device a motorization system not shown.

Comme l'illustrent en particulier les figures 4 et 5, afin d'éviter qu'une ouverture prolongée du fût dans lequel on vient de réaliser un enro bage ne conduise à un risque trop important pour les opérateurs, on prévoit de venir placer dès que possible sur ce fût un bouchon 54.As illustrated in particular in FIGS. 4 and 5, in order to avoid that a prolonged opening of the barrel in which one has just made a coating does not lead to too great a risk for the operators, provision is made to come and place as soon as possible on this barrel 54.

De préférence, le dispositif selon l'invention est équipé à cet effet d'une deuxième potence 56 supportée de façon pivotante par la première potence 30 autour d'un axe vertical décalé par rapport à l'axe XX' en direction de la tête de malaxage 22. Comme la potence 30, cette potence 56 supporte le bouchon 54 par l'intermédiaire d'un câble 58 pouvant déplacer le bouchon entre une position haute et une position basse sous l'action d'un vérin (non représenté).Preferably, the device according to the invention is equipped for this purpose with a second bracket 56 pivotally supported by the first bracket 30 around a vertical axis offset from the axis XX 'in the direction of the head. mixing 22. Like the bracket 30, this bracket 56 supports the plug 54 by means of a cable 58 which can move the plug between a high position and a low position under the action of a jack (not shown).

L'axe d'articulation de la potence 56 sur la potence 30 est positionné de telle sorte que le bouchon peut être mis en place sur le fût dès que la tête de malaxage 22 a dégagé l'ouverture de celui-ci sous l'effet de la rotation de la tourelle 12.The axis of articulation of the bracket 56 on the bracket 30 is positioned so that the plug can be put in place on the barrel as soon as the kneading head 22 has cleared the opening of the latter under the effect the rotation of the turret 12.

Bien entendu, l'invention n'est pas limitée au mode de réalisation qui vient d'être décrit à titre d'exemple, mais en couvre toutes les variantes.Of course, the invention is not limited to the embodiment which has just been described by way of example, but covers all its variants.

Ainsi, comme on l'a déjà mentionné, l'invention n'est pas limitée à un dispositif d'enrobage mobile tel que celui qui vient d'être décrit en se référant aux figures mais peut être utilisé dans tous les- cas où un mélange des mêmes produits doit être effeçtué successivement dans plusieurs fûts, ce qui se présente notamment dans l'industrie chimique. De ce point de vue, on comprendra que toutes les caractéristiques du dispositif décrit liées à la nature dangereuse et toxique des produits manipulés (structure de protection biologique notamment) peuvent être supprimées lorsque les produits traités ne présentent pas ces ca- ractèrisfiques. De plus, le nombre de fûts pouvant être accostés sur la machine peut être supérieur à deux sans sortir du cadre de l'invention, de même que le nombre de pots embarqués sur la tourelle mobile peut être un nombre quelconque supérieur ou égal à deux. Enfin, l'invention s'applique quel que soit le volume des produits à mélanger, les dimensions de l'installation, et notamment des pots de dosage et des fûts, pouvant être adaptées aussi bien au traitement de faibles quantités que de grandes quantités.Thus, as already mentioned, the invention is not limited to a mobile coating device such as that which has just been described with reference to the figures but can be used in all cases where a mixing the same products must be carried out successively in several barrels, which occurs in particular in the chemical industry. From this point of view, it will be understood that all the characteristics of the device described linked to the dangerous and toxic nature of the products handled (biological protection structure in particular) can be eliminated when the products treated do not exhibit these characteristics. In addition, the number of drums that can be docked on the machine can be greater than two without departing from the scope of the invention, just as the number of pots on board the mobile turret can be any number greater than or equal to two. Finally, the invention applies regardless of the volume of the products to be mixed, the dimensions of the installation, and in particular of the metering pots and drums, which can be adapted both to the treatment of small quantities and of large quantities.

Claims (6)

1. Dispositif de mélange mobile d'au moins deux produits en provenance de pots de stockage (18, 20), dans des fûts (16) équipés de moyens de malaxage internes (16a, 16b) aptes à être entraînés en rotation par une tête de malaxage (22), par l'intermédiaire d'un accouplement déconnectable (22b), ce dispositif étant caractérisé en ce qu'il comprend: - un socle fixe (10) comportant au moins deux réceptacles (14) aptes à recevoir des fûts (16), - une tourelle (12) supportée par le socle de façon à pouvoir tourner autour d'un axe vertical (XX'), ladite tourelle comportant lesdits pots de stockage (18, 20), la tête de malaxage (22) au moins une canalisation (44, 46, 52) reliant chacun des pots de stockage à la tête de malaxage, et des moyens (40) pour déplacer verticalement cette dernière entre une position haute autorisant une rotation de la tourelle (12) afin d'amener ladite tête successivement au-dessus de chacun des fûts placés dans les réceptacles du socle, et une position basse dans laquelle les moyens de malaxage du fût correspondant sont reliés à la tête de malaxage par ledit accouplement. 1 . Device for mobile mixing of at least two products from storage pots (18, 20), in drums ( 1 6) equipped with internal kneading means (16a, 16b) capable of being driven in rotation by a head mixing (22), by means of a disconnectable coupling (22b), this device being characterized in that it comprises: - a fixed base (10) comprising at least two receptacles (14) suitable for receiving drums (16), - a turret (12) supported by the base so as to be able to rotate about a vertical axis (XX '), said turret comprising said storage pots (18, 20), the kneading head (22) at least one pipe (44, 46, 52) connecting each of the storage pots to the mixing head, and means (40) for vertically moving the latter between a high position allowing rotation of the turret (12) in order to bring said head successively above each of the barrels placed in the receptacles of the base, and a low position in which the kneading means of the corresponding barrel are connected to the kneading head by said coupling. 2. Dispositif selon la revendication 1, caractérisé en ce que le socle fixe (10) comprend une semelle (10a) dans laquelle sont formés lesdits réceptacles (14) et une virole cylindrique (10b) dont l'axe vertical est confondu avec l'axe de rotation (XX') de la tourelle et dans laquelle est reçu l'un (18) desdits pots.2. Device according to claim 1, characterized in that the fixed base (10) comprises a sole (10a) in which are formed said receptacles (14) and a cylindrical ferrule (10b) whose vertical axis coincides with the axis of rotation (XX ') of the turret and in which one (18) of said pots is received. 3. Dispositif selon la revendication 2, caractérisé en ce que la tourelle (12) est supportée par le bord supérieur de ladite virole cylindrique (10b) et comporte un couvercle tournant (24) obtu rant la virole et auquel est suspendu le pot (18) reçu dans la virole.3. Device according to claim 2, characterized in that the turret (12) is supported by the upper edge of said cylindrical ferrule (10b) and comprises a rotating cover (24) obtu rant the ferrule and to which the pot (18) is suspended ) received in the shell. 4. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la tête de malaxage (22) est suspendue à une potence (30) par un lien flexible (38) sur lequel agissent lesdits moyens (40) pour déplacer verticalement la tête de mafaxage.4. Device according to any one of the preceding claims, characterized in that the kneading head (22) is suspended from a bracket (30) by a flexible link (38) on which act said means (40) for vertically moving the mixing head. 5. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la tourelle (12) comprend de plus des moyens (56) de manutention d'un couvercle de fût (54), permettant de remplacer la tête de malaxage (22) par ce couvercle (54) lorsque ladite tête est dégagée du fût correspondant par une rotation de la tourelle.5. Device according to any one of the preceding claims, characterized in that the turret (12) further comprises means (56) for handling a barrel cover (54), making it possible to replace the kneading head (22 ) by this cover (54) when said head is released from the corresponding barrel by a rotation of the turret. 6. Dispositif selon la revendication 5, caractérisé en ce que lesdits moyens de manutention du couvercle de fût comprennent une deuxième potence (56) supportée de façon pivotante autour d'un axe vertical décalé vers la tête de malaxage (22) par rapport à l'axe de rotation (XX') de la tourelle.6. Device according to claim 5, characterized in that said means for handling the barrel cover comprises a second bracket (56) pivotally supported about a vertical axis offset towards the mixing head (22) relative to the 'axis of rotation (XX') of the turret.
EP85401756A 1984-09-13 1985-09-10 Mobile mixing device Expired EP0175615B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85401756T ATE38917T1 (en) 1984-09-13 1985-09-10 MOBILE MIXING DEVICE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8414064A FR2569994B1 (en) 1984-09-13 1984-09-13 MOBILE MIXING DEVICE
FR8414064 1984-09-13

Publications (2)

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EP0175615A1 true EP0175615A1 (en) 1986-03-26
EP0175615B1 EP0175615B1 (en) 1988-11-23

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US (1) US4671667A (en)
EP (1) EP0175615B1 (en)
JP (1) JPS61118119A (en)
AT (1) ATE38917T1 (en)
DE (1) DE3566473D1 (en)
FR (1) FR2569994B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995014998A1 (en) * 1993-11-25 1995-06-01 Abb Atom Ab Adapter for a container with a stirrer
EP2214847A4 (en) * 2007-11-08 2016-04-06 Energysolutions Llc System for and method of filling a container with hazardous waste
WO2017064327A1 (en) 2015-10-15 2017-04-20 Commissariat A L'energie Atomique Et Aux Energies Alternatives Device for stirring products contained in a drum

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102492607B (en) * 2004-06-04 2014-12-10 通用电气医疗集团生物科学公司 Disposable bioreactor systems and methods
US20080004477A1 (en) * 2006-07-03 2008-01-03 Brunsell Dennis A Method and device for evaporate/reverse osmosis concentrate and other liquid solidification
WO2008088379A2 (en) * 2006-07-14 2008-07-24 Xcellerex, Inc. Environmental containment systems
CN103818978B (en) * 2014-03-03 2015-04-08 孔令斌 High-temperature gas cooled reactor nuclear electric power generation and sea water desalination device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1104220A (en) * 1954-05-05 1955-11-17 Improvements to mixer-mixers
GB2055505A (en) * 1979-07-03 1981-03-04 N Med Ag Device for the temporary reception of radioactive waste
EP0031879A1 (en) * 1979-12-20 1981-07-15 Kernforschungszentrum Karlsruhe Gmbh Device for incorporating radioactive waste in concrete in waste containers
US4299722A (en) * 1978-04-21 1981-11-10 Stock Equipment Company Introduction of fluent materials into containers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1463744A (en) * 1921-06-04 1923-07-31 Frank X Lauterbur Mixing machine
US1598399A (en) * 1924-10-04 1926-08-31 Clyde S Simmonds Paint mixer
US1598400A (en) * 1925-03-14 1926-08-31 Clyde S Simmonds Paint-mixing machine
US2967433A (en) * 1957-02-15 1961-01-10 Edwin D Phillips Apparatus for supporting and facilitating the handling of work tools

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1104220A (en) * 1954-05-05 1955-11-17 Improvements to mixer-mixers
US4299722A (en) * 1978-04-21 1981-11-10 Stock Equipment Company Introduction of fluent materials into containers
GB2055505A (en) * 1979-07-03 1981-03-04 N Med Ag Device for the temporary reception of radioactive waste
EP0031879A1 (en) * 1979-12-20 1981-07-15 Kernforschungszentrum Karlsruhe Gmbh Device for incorporating radioactive waste in concrete in waste containers

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995014998A1 (en) * 1993-11-25 1995-06-01 Abb Atom Ab Adapter for a container with a stirrer
EP2214847A4 (en) * 2007-11-08 2016-04-06 Energysolutions Llc System for and method of filling a container with hazardous waste
US9412477B1 (en) 2007-11-08 2016-08-09 Energysolutions, Llc Method of filling a container with hazardous waste
WO2017064327A1 (en) 2015-10-15 2017-04-20 Commissariat A L'energie Atomique Et Aux Energies Alternatives Device for stirring products contained in a drum
FR3042636A1 (en) * 2015-10-15 2017-04-21 Commissariat Energie Atomique DEVICE FOR MIXING PRODUCTS CONTAINED IN A FUTURE

Also Published As

Publication number Publication date
US4671667A (en) 1987-06-09
JPH0521013B2 (en) 1993-03-23
FR2569994A1 (en) 1986-03-14
FR2569994B1 (en) 1986-11-21
ATE38917T1 (en) 1988-12-15
DE3566473D1 (en) 1988-12-29
JPS61118119A (en) 1986-06-05
EP0175615B1 (en) 1988-11-23

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