EP0379452A1 - Centrifugal drier with a hinged bowl for filtration in a sterile atmosphere - Google Patents

Centrifugal drier with a hinged bowl for filtration in a sterile atmosphere Download PDF

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Publication number
EP0379452A1
EP0379452A1 EP90420027A EP90420027A EP0379452A1 EP 0379452 A1 EP0379452 A1 EP 0379452A1 EP 90420027 A EP90420027 A EP 90420027A EP 90420027 A EP90420027 A EP 90420027A EP 0379452 A1 EP0379452 A1 EP 0379452A1
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EP
European Patent Office
Prior art keywords
partition
wringer
edge
sterile atmosphere
hole
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.)
Ceased
Application number
EP90420027A
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German (de)
French (fr)
Inventor
Michel Martin
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.)
Robatel SLPI SA
Original Assignee
Robatel SLPI 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 Robatel SLPI SA filed Critical Robatel SLPI SA
Publication of EP0379452A1 publication Critical patent/EP0379452A1/en
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B15/00—Other accessories for centrifuges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B3/00—Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneous sifting or filtering

Definitions

  • extractors centrifuges in which the tank surrounding the basket is arranged in the manner of a door hinged on the front part of the fixed frame, so as to surround said basket.
  • the present invention is based on the observation that such an articulated tank wringer is capable, by means of a relatively simple adaptation, of lending itself particularly well to centrifugal filtration operations in a sterile atmosphere, for example in chemical or pharmaceutical laboratories. , since the rear part of the machine containing the feed and drive devices, the decontamination of which is always difficult, is likely to be placed in a room different from that containing the front part comprising the articulated tank and the basket on the wall of which the solid particles obtained are deposited by centrifugation.
  • the fixed frame is made to comprise, immediately behind the opening against which the edge of the tank comes to apply in the closed position, a plate which is oriented transversely to the axis of the rotating basket and which is tightly connected to the edge of the abovementioned hole by a deformable element.
  • the reference 1 designates a vertical partition separating two contiguous premises referenced A and B, which partition 1 is pierced with a hole 1 a which one can suppose to be established in a substantially rectangular section.
  • the wringer according to the invention is intended to be installed inside this hole 1 a , so that its front part is located in room A with sterile atmosphere, while its rear part is arranged in the room B with an uncontrolled atmosphere.
  • the centrifugal wringer considered is of conventional construction as regards its general arrangement. Its fixed frame 2 which contains the lateral ballast boxes and the hydraulic group for controlling the usual picking knife and which supports the motor 3 for driving the rotating basket 4, is mounted on a lower platform 5, which is supported by damping systems 6 against the upper face of a solid block 7 provided on the floor of room B. On the other hand, the aforementioned basket 4, the tank 8 which envelops this basket and the mechanisms associated with the bottom of said tank 8 are located inside room A, with the tubing 9 used for the recovery of solid particles separated by centrifugal effect and normally collected against the inner wall of the basket.
  • this tank 4 is of the articulated type, in the sense that it is pivotally supported by a vertical axis integral with the frame 2 and that it is capable of being kept closed during centrifugation using a flange mechanism 10, its open edge being retained applied in leaktight manner against a bearing surface surrounding the opening of the frame 2.
  • the frame 2 is made integral, for example by welding, a vertical plate 11 whose profile elevation is similar to that of the hole 1a. Furthermore, the peripheral edge of this plate 11 is connected to the edge of the gap 1 a by a sealed and deformable system referenced 12 in FIG. 1 and which has been illustrated in FIG. 2 an example of practical implementation.
  • this system comprises a flexible element 13 made of a waterproof synthetic material, which has a U-shaped profile in cross section, it being observed that the central part comprises at least one longitudinal fold 13 a which allows said element to deform at the like a bellows.
  • One of the lateral branches of the aforementioned profile is fixed against the partition 1 using sealed bolts 14 and a flange 15, while the other branch is attached, also using bolts 14 and a flange 15, against the outermost wing of a frame 16 with a double angle section, made integral with the plate 11 of the fixed frame 2 of the wringer.
  • the plate 11 and the deformable system 12 ensure the perfectly sealed separation of the two premises A and B despite the fact that the centrifugal wringer according to the invention is arranged astride a hole made in the intermediate partition 1.
  • the recovery of the solid phase, as the packaging of the extracted product, are therefore likely to be operated in a perfectly sterile atmosphere while the filtrate can be evacuated through a side tube 17 oriented rearward, in room B
  • the vibrations generated by the operation of the machine are collected by the system 12 and are therefore not transmitted to the partition 1.

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  • Centrifugal Separators (AREA)

Abstract

To the rear of the edge of the hinged bowl (8) surrounding the rotating basket (4), the fixed stand (2) is attached to a transverse plate (11) which is connected by a deformable system (12) to the partition (1) separating the two areas (A, B). The resulting airtight separation allows work to be done in a sterile atmosphere. <IMAGE>

Description

On sait qu'en vue d'améliorer les conditions d'accessibilité au panier tournant et aux accessoires qui lui sont associés, de faciliter le nettoyage et de permettre un contrôle visuel aisé des opérations de filtration sans démontage des pièces, on a proposé des essoreuses centrifuges dans lesquelles la cuve entourant le panier est agencée à la manière d'une porte articulée sur la partie antérieure du bâti fixe, de façon à entourer ledit panier.We know that in order to improve the conditions of accessibility to the revolving basket and the accessories associated with it, to facilitate cleaning and to allow easy visual control of filtration operations without dismantling the parts, we have used extractors centrifuges in which the tank surrounding the basket is arranged in the manner of a door hinged on the front part of the fixed frame, so as to surround said basket.

La présente invention est fondée sur l'observation qu'une telle essoreu­se à cuve articulée est de nature, moyennant une adaptation relativement simple, à se prêter particulièrement bien à des opérations de filtration centrifuge en atmosphère stérile, par exemple dans les laboratoires chi­miques ou pharmaceutiques, puisque la partie arrière de la machine ren­fermant les dispositifs d'alimentation et d'entraînement, dont la décon­tamination est toujours malaisée, est susceptible d'être disposée dans un local différent de celui renfermant la partie antérieure comprenant la cuve articulée et le panier sur la paroi duquel se déposent par centrifugation les particules solides obtenues.The present invention is based on the observation that such an articulated tank wringer is capable, by means of a relatively simple adaptation, of lending itself particularly well to centrifugal filtration operations in a sterile atmosphere, for example in chemical or pharmaceutical laboratories. , since the rear part of the machine containing the feed and drive devices, the decontamination of which is always difficult, is likely to be placed in a room different from that containing the front part comprising the articulated tank and the basket on the wall of which the solid particles obtained are deposited by centrifugation.

C'est cette adaptation qui fait l'objet de la présente invention, la­quelle vise l'essoreuse centrifuge qui est définie à la revendication 1.It is this adaptation which is the subject of the present invention, which relates to the centrifugal wringer which is defined in claim 1.

En fait, conformément à l'invention, s'agissant d'une essoreuse centri­fuge destinée à être implantée dans une trouée pratiquée dans une cloi­son séparant deux locaux contigus propres à renfermer l'un la partie arrière d'entraînement de la machine, l'autre la partie avant avec la cuve articulée, l'on fait comporter au bâti fixe, immédiatement en ar­rière de l'ouverture contre laquelle vient s'appliquer le bord de la cuve à la position fermée, une plaque qui est orientée transversalement à l'axe du panier tournant et qui est reliée de manière étanche au bord de la trouée précitée par un élément déformable.In fact, in accordance with the invention, in the case of a centrifugal wringer intended to be installed in a hole made in a partition separating two adjoining rooms suitable for enclosing one the rear drive part of the machine, the other the front part with the articulated tank, the fixed frame is made to comprise, immediately behind the opening against which the edge of the tank comes to apply in the closed position, a plate which is oriented transversely to the axis of the rotating basket and which is tightly connected to the edge of the abovementioned hole by a deformable element.

Le dessin annexé, donné à titre d'exemple, permettra de mieux comprendre l'invention, les caractéristiques qu'elle présente et les avantages qu'elle est susceptible de procurer :

  • Fig. 1 est une vue schématique de côté illustrant l'implantation d'une essoreuse centrifuge suivant la présente invention.
  • Fig. 2 est une coupe de détail à plus grande échelle.
The appended drawing, given by way of example, will allow a better understanding of the invention, the characteristics which it presents and the advantages which it is capable of providing:
  • Fig. 1 is a schematic side view illustrating the installation of a centrifugal wringer according to the present invention.
  • Fig. 2 is a detail section on a larger scale.

Sur ce dessin la référence 1 désigne une cloison verticale séparant deux locaux contigus référencés A et B, laquelle cloison 1 est percée d'une trouée 1a qu'on peut supposer être établie à une section substantielle­ment rectangulaire. L'essoreuse suivant l'invention est destinée à être implantée à l'intérieur de cette trouée 1a, de façon à ce que sa partie antérieure se trouve située dans le local A à atmosphère stérile, tandis que sa partie arrière est disposée dans le local B à atmosphère non con­trôlée.In this drawing, the reference 1 designates a vertical partition separating two contiguous premises referenced A and B, which partition 1 is pierced with a hole 1 a which one can suppose to be established in a substantially rectangular section. The wringer according to the invention is intended to be installed inside this hole 1 a , so that its front part is located in room A with sterile atmosphere, while its rear part is arranged in the room B with an uncontrolled atmosphere.

L'essoreuse centrifuge considérée est de construction classique en ce qui concerne son agencement général. Son bâti fixe 2 qui renferme les caissons latéraux de lestage et le groupe hydraulique pour la commande du couteau usuel de prélèvement et qui supporte le moteur 3 pour l'en­traînement du panier tournant 4, est monté sur une plateforme inférieure 5, laquelle prend appui par des systèmes amortisseurs 6 contre la face supérieure d'un bloc massif 7 prévu sur le plancher du local B. Par contre, le panier 4 précité, la cuve 8 qui enveloppe ce panier et les mécanismes associés au fond de ladite cuve 8 se trouvent situés à l'in­térieur du local A, avec la tubulure 9 utilisée pour la récupération des particules solides séparées par effet centrifuge et normalement recueil­lies contre la paroi intérieure du panier.The centrifugal wringer considered is of conventional construction as regards its general arrangement. Its fixed frame 2 which contains the lateral ballast boxes and the hydraulic group for controlling the usual picking knife and which supports the motor 3 for driving the rotating basket 4, is mounted on a lower platform 5, which is supported by damping systems 6 against the upper face of a solid block 7 provided on the floor of room B. On the other hand, the aforementioned basket 4, the tank 8 which envelops this basket and the mechanisms associated with the bottom of said tank 8 are located inside room A, with the tubing 9 used for the recovery of solid particles separated by centrifugal effect and normally collected against the inner wall of the basket.

Il convient d'observer que cette cuve 4 est du type articulé, en ce sens qu'elle est supportée à pivotement par un axe vertical solidaire du bâti 2 et qu'elle est susceptible d'être maintenue fermée pendant la centri­fugation à l'aide d'un mécanisme de brides 10, son bord ouvert étant retenu appliqué de manière étanche contre une portée entourant l'ouver­ture du bâti 2.It should be observed that this tank 4 is of the articulated type, in the sense that it is pivotally supported by a vertical axis integral with the frame 2 and that it is capable of being kept closed during centrifugation using a flange mechanism 10, its open edge being retained applied in leaktight manner against a bearing surface surrounding the opening of the frame 2.

Conformément à la présente invention, immédiatement en arrière de cette portée, le bâti 2 est rendu solidaire, par exemple par soudure, d'une plaque verticale 11 dont le profil en élévation est similaire à celui de la trouée 1a. Par ailleurs le bord périphérique de cette plaque 11 est relié au bord de la trouée 1a par un système étanche et déformable référencé 12 en fig. 1 et dont on a illustré en fig. 2 un exemple de réalisation pratique.According to the present invention, immediately behind this scope, the frame 2 is made integral, for example by welding, a vertical plate 11 whose profile elevation is similar to that of the hole 1a. Furthermore, the peripheral edge of this plate 11 is connected to the edge of the gap 1 a by a sealed and deformable system referenced 12 in FIG. 1 and which has been illustrated in FIG. 2 an example of practical implementation.

Comme montré ce système comprend un élément souple 13 en une matière synthétique étanche, qui présente en section transversale un profil en forme de U, étant observé que la partie centrale comporte au moins un pli longitudinal 13a qui permet audit élément de se déformer à la maniè­re d'un soufflet. L'une des branches latérales du profil précité est fixée contre la cloison 1 à l'aide de boulons scellés 14 et d'une bride 15, tandis que l'autre branche est rapportée, également à l'aide de boulons 14 et d'une bride 15, contre l'aile la plus extérieure d'un en­cadrement 16 à section en double équerre, rendu solidaire de la plaque 11 du bâti fixe 2 de l'essoreuse.As shown, this system comprises a flexible element 13 made of a waterproof synthetic material, which has a U-shaped profile in cross section, it being observed that the central part comprises at least one longitudinal fold 13 a which allows said element to deform at the like a bellows. One of the lateral branches of the aforementioned profile is fixed against the partition 1 using sealed bolts 14 and a flange 15, while the other branch is attached, also using bolts 14 and a flange 15, against the outermost wing of a frame 16 with a double angle section, made integral with the plate 11 of the fixed frame 2 of the wringer.

On conçoit que la plaque 11 et le système déformable 12 assurent la sé­paration parfaitement étanche des deux locaux A et B en dépit du fait que l'essoreuse centrifuge suivant l'invention se trouve disposée à cheval dans une trouée pratiquée dans la cloison intermédiaire 1. La ré­cupération de la phase solide, comme le conditionnement du produit ex­trait, sont de ce fait susceptibles d'être opérés en atmosphère parfai­tement stérile tandis que le filtrat peut être évacué à travers une tu­bulure latérale 17 orientée vers l'arrière, dans le local B. Les vibra­tions engendrées par le fonctionnement de la machine sont encaissées par le système 12 et ne sont de ce fait pas transmises à la cloison 1.It will be understood that the plate 11 and the deformable system 12 ensure the perfectly sealed separation of the two premises A and B despite the fact that the centrifugal wringer according to the invention is arranged astride a hole made in the intermediate partition 1. The recovery of the solid phase, as the packaging of the extracted product, are therefore likely to be operated in a perfectly sterile atmosphere while the filtrate can be evacuated through a side tube 17 oriented rearward, in room B The vibrations generated by the operation of the machine are collected by the system 12 and are therefore not transmitted to the partition 1.

Il doit être noté que si l'invention semble plus particulièrement appli­cable aux essoreuses centrifuges à axe horizontal, elle est toutefois apte à être mise en oeuvre avec des machines à axe vertical dans les­quelles la cuve entourant le panier tournant est constituée par un cou­vercle articulé.It should be noted that if the invention seems more particularly applicable to centrifugal dryers with a horizontal axis, it is however able to be implemented with machines with a vertical axis in which the tank surrounding the rotating basket is constituted by an articulated cover.

Claims (3)

1. Essoreuse centrifuge du type à cuve articulée, destinée à être im­plantée dans une trouée (1a) pratiquée dans une cloison (1) séparant deux locaux contigus (A et B) propres à renfermer l'un la partie arrière d'entraînement de la machine, l'autre la partie avant exigeant un fonc­tionnement en atmosphère stérile, caractérisée en ce qu'en arrière de l'ouverture contre laquelle vient s'appliquer le bord de la cuve (8) à la position de fermeture, le bâti fixe (2) comporte une plaque (11) qui est orientée transversalement à l'axe du panier tournant (4) et qui est reliée par un système déformable (12) au bord de la trouée (1a).1. Centrifugal wringer of the articulated tank type, intended to be installed in a hole (1 a ) formed in a partition (1) separating two adjoining rooms (A and B) suitable for enclosing one the rear drive part of the machine, the other the front part requiring operation in a sterile atmosphere, characterized in that behind the opening against which the edge of the tank (8) is applied in the closed position, the fixed frame (2) comprises a plate (11) which is oriented transversely to the axis of the revolving basket (4) and which is connected by a deformable system (12) at the edge of the hole (1a). 2. Essoreuse suivant la revendication 1, caractérisée en ce que le sys­tème déformable (12) comprend un élément souple (13) qui est réalisé en une matière synthétique étanche et qui présente en section un profil gé­néral en forme de U dont les branches sont fixées de manière hermétique aux bords de la cloison (1) et de la plaque (11) tandis que la partie centrale comporte au moins un pli longitudinal (13a) propre à permettre audit élément de se comporter à la manière d'un soufflet.2. Wringer according to claim 1, characterized in that the deformable system (12) comprises a flexible element (13) which is made of a waterproof synthetic material and which has in section a general U-shaped profile whose branches are fixed hermetically at the edges of the partition (1) and of the plate (11) while the central part comprises at least one longitudinal fold (13 a ) suitable for allowing said element to behave in the manner of a bellows. 3. Essoreuse suivant l'une quelconque des revendications 1 et 2, carac­térisée en ce que la sortie du filtrat est opérée à travers une tubulure (17) prévue latéralement à l'arrière du bâti fixe (2).3. Wringer according to any one of claims 1 and 2, characterized in that the outlet of the filtrate is operated through a tube (17) provided laterally at the rear of the fixed frame (2).
EP90420027A 1989-01-19 1990-01-18 Centrifugal drier with a hinged bowl for filtration in a sterile atmosphere Ceased EP0379452A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8900864A FR2641715B1 (en) 1989-01-19 1989-01-19 CENTRIFUGAL SPINNER WITH ARTICULATED TANK FOR STERILE ATMOSPHERE FILTRATION
FR8900864 1989-01-19

Publications (1)

Publication Number Publication Date
EP0379452A1 true EP0379452A1 (en) 1990-07-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP90420027A Ceased EP0379452A1 (en) 1989-01-19 1990-01-18 Centrifugal drier with a hinged bowl for filtration in a sterile atmosphere

Country Status (4)

Country Link
US (1) US4997417A (en)
EP (1) EP0379452A1 (en)
JP (1) JPH03196855A (en)
FR (1) FR2641715B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4342471C1 (en) * 1993-12-13 1995-05-04 Krauss Maffei Ag Filter centrifuge

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2711076B1 (en) * 1993-10-13 1995-12-08 Robatel Slpi Waterproof and elastically deformable device for the deburring of the residual layer.
DE10311997A1 (en) * 2003-03-19 2004-10-07 Johannes Gerteis inverting filter centrifuge
DE102013006411B4 (en) * 2013-04-13 2018-10-04 Hosokawa Alpine Aktiengesellschaft Process engineering machine for installation in a wall

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3111863A (en) * 1960-07-11 1963-11-26 Sorvall Inc Ivan Explosion-proof enclosure for centrifuges and the like
GB1171190A (en) * 1965-11-29 1969-11-19 Struthers Scientific Int Corp Improvements in or relating to Centrifuges
GB1189195A (en) * 1967-06-19 1970-04-22 Mse Holdings Ltd Centrifuges
US3604617A (en) * 1969-04-09 1971-09-14 Beckman Instruments Inc Ultracentrifuge transmission assembly
FR2460719A1 (en) * 1979-07-13 1981-01-30 Robatel Slpi Explosion relief vent for cover of drying centrifuge etc. - carries pressure wave through flexible sleeve to exhaust duct

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4226669A (en) * 1979-05-09 1980-10-07 Savant Instruments, Inc. Vacuum centrifuge with magnetic drive
US4457746A (en) * 1983-01-07 1984-07-03 Core Industries, Inc. Apparatus for centrifugal separation
US4764162A (en) * 1986-11-03 1988-08-16 E. I. Du Pont De Nemours And Company Removable door seal assembly for a centrifuge

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3111863A (en) * 1960-07-11 1963-11-26 Sorvall Inc Ivan Explosion-proof enclosure for centrifuges and the like
GB1171190A (en) * 1965-11-29 1969-11-19 Struthers Scientific Int Corp Improvements in or relating to Centrifuges
GB1189195A (en) * 1967-06-19 1970-04-22 Mse Holdings Ltd Centrifuges
US3604617A (en) * 1969-04-09 1971-09-14 Beckman Instruments Inc Ultracentrifuge transmission assembly
FR2460719A1 (en) * 1979-07-13 1981-01-30 Robatel Slpi Explosion relief vent for cover of drying centrifuge etc. - carries pressure wave through flexible sleeve to exhaust duct

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4342471C1 (en) * 1993-12-13 1995-05-04 Krauss Maffei Ag Filter centrifuge
EP0657220A2 (en) * 1993-12-13 1995-06-14 Krauss-Maffei Aktiengesellschaft Filter centrifuge
EP0657220A3 (en) * 1993-12-13 1995-09-27 Krauss Maffei Ag Filter centrifuge.
US5582726A (en) * 1993-12-13 1996-12-10 Krauss Maffei Aktiengesellschaft Filter centrifuge

Also Published As

Publication number Publication date
JPH03196855A (en) 1991-08-28
FR2641715B1 (en) 1991-04-12
US4997417A (en) 1991-03-05
FR2641715A1 (en) 1990-07-20

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