WO1998056264A1 - Method and device for pressurising liquid or solid objects - Google Patents

Method and device for pressurising liquid or solid objects Download PDF

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Publication number
WO1998056264A1
WO1998056264A1 PCT/FR1998/001193 FR9801193W WO9856264A1 WO 1998056264 A1 WO1998056264 A1 WO 1998056264A1 FR 9801193 W FR9801193 W FR 9801193W WO 9856264 A1 WO9856264 A1 WO 9856264A1
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WO
WIPO (PCT)
Prior art keywords
chamber
barrel
product
rotary member
pressurized
Prior art date
Application number
PCT/FR1998/001193
Other languages
French (fr)
Inventor
Bernard Lhenry
Rémy Plantadis
Luc Bresous
Original Assignee
Clextral
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 Clextral filed Critical Clextral
Publication of WO1998056264A1 publication Critical patent/WO1998056264A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/001—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a flexible element, e.g. diaphragm, urged by fluid pressure; Isostatic presses
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/015—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with pressure variation, shock, acceleration or shear stress or cavitation
    • A23L3/0155—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with pressure variation, shock, acceleration or shear stress or cavitation using sub- or super-atmospheric pressures, or pressure variations transmitted by a liquid or gas
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
    • A23L5/30—Physical treatment, e.g. electrical or magnetic means, wave energy or irradiation

Definitions

  • the present invention relates to a semi-continuous process and device for pressurizing a liquid or solid product such as, for example, food products. Treatment by pressurization of liquid or solid products for various purposes.
  • a low-capacity sealed enclosure is used in which the products which are subjected to high pressure are placed.
  • This sealed enclosure is connected to a pump intended to inflate the interior of the enclosure in order to increase the internal pressure.
  • this fluid is contained in a sealed enclosure and subjected directly to the desired pressure obtained using the pump.
  • this element In the case of a packaged element, this element is placed in the sealed enclosure and is subjected to the required pressure by means of said pump.
  • the object of the invention is to propose a semi-continuous process and device for pressurizing a liquid or solid product, such as for example a food product making it possible to treat large quantities of products and presenting all the necessary guarantees of security, while retaining the product its original qualities.
  • the subject of the invention is a semi-continuous process for pressurizing a liquid or solid product, for example a food product, characterized in that one pressurizes successive volumes of product in a shape processing chamber general tubular and circular section, having two opposite and open ends, by performing the following steps:
  • a first section separator corresponding to the section of the chamber is introduced using a first rotary member, at the first end of the chamber;
  • a first volume of product to be pressurized is injected into the chamber, using the first rotary member, so as to move the first separator to the second end of said chamber,
  • a second separator is introduced into the chamber, using the first rotary member, the first end of the chamber is closed off by said first rotary member,
  • the first volume of product is compressed to a desired pressure, to treat this first volume of product, the second end of the chamber is opened,
  • the second rotary member is sterilized, - and after the closure of the second end of the chamber and the injection into said chamber of the second volume of product to be pressurized, it is introduced into the chamber, using the first rotary member, a separator and the cycle is repeated for the entire product to be treated.
  • the subject of the invention is also a device for semi-continuous pressurization of a liquid or solid product, such as for example a food product, characterized in that it comprises a support structure supporting:
  • a tube forming an internal treatment chamber of circular section and comprising two open and opposite ends
  • a first rotary member for closing the chamber and for introducing into this chamber, on the one hand, successive volumes of product to be pressurized and, on the other hand, separation elements between each volume of product to be pressurized , said first rotary member being disposed at the first end of said chamber,
  • a second rotary member for recovering, on the one hand, successive volumes of product pressurized and, on the other hand, separating elements between each volume of pressurized product, said second rotary member being disposed at the second end of said chamber, - means for sterilizing the second rotary member,
  • Each rotary member is formed by a circular barrel mounted free in rotation on a support by means of an axis offset with respect to the axis of the chamber and comprising at its periphery a toothed ring intended to cooperate with a geared motor d 'drive fixed on said support,
  • the barrel forming the first rotary member comprises a first blind orifice intended to be connected, by a conduit and a metering pump, to a pressure supply tank for the product to be pressurized, a second blind orifice for introducing the product to be pressurized and connected to the first orifice by a channel formed in said barrel and a third through orifice for transferring each separation element between the conveying means and the treatment chamber, said orifices being parallel and disposed at equal distance from the axis of rotation of said barrel, the means for compressing successive volumes of product are formed by a piston of circular section and movable in the axis of the chamber to penetrate at the second end of said chamber, said piston being fixed to the free end of a rod of a jack, the barrel forming the second rotary member comprises a first blind orifice intended to be connected, by a conduit, to a product recovery tank pressurized, a second blind orifice for recovering the pressurized product and connected to the first orifice by a channel formed in
  • FIG. 1 is a schematic elevation view of a pressurization device according to the invention
  • Fig. 2 is a sectional view along line 2-2 of FIG. 1,
  • FIG. 3 is a perspective view of the supporting structure of the pressurization device according to the invention
  • FIG. 4 is an exploded cross-sectional view of a rotary member and its support for the introduction of product into the treatment chamber of the pressurization device
  • FIG. 5 is a view along F of FIG. 4 and showing a side face of the rotary member
  • FIG. 6 is an exploded cross-sectional view of a rotary member and its support for discharging the treated product
  • Fig. 7 is a view along G of FIG. 6 and showing a lateral face of the rotary member
  • - Fig. 8 is a view along H of FIG. 6 and showing a side face of a flange of the support of the rotary member
  • - Figs. 9A to 9G are diagrams showing the different operating phases of the pressurization device according to the invention.
  • a semi-continuous device for pressurizing a liquid or solid product such as for example a food product.
  • the pressurization device shown in Figs. 1 to 3 comprises a support structure designated as a whole by the reference 1 and supporting:
  • a tube 7 forming an internal treatment chamber 8, of circular section and comprising two open and opposite ends 8a and 8b,
  • the support structure 1 is formed by two vertical end plates, respectively 2 and 3, each pierced with a central orifice and by two horizontal and opposite flanges, respectively 4 and 5, connecting the end plates 2 and 3 .
  • the end plates 2 and 3 as well as the flanges 4 and 5 provide between them a housing 1a intended to receive the various elements of the pressurization device, as will be seen later.
  • the end flange 2 has on its external face a barrel 6 intended to supporting the compression means 30 of the successive volumes of product to be pressurized.
  • the tube 7 forming the treatment chamber 8 can be of modular length and in this case it is formed of several tubular elements, independent and fixed end to end by means of connection flanges fixed to each other for example by bolts.
  • All the elements constituted by the first rotary member 10, the second rotary member 40 as well as the means 70 for conveying the separation elements 9 are arranged in the housing formed between the end plates 2 and 3 and the flanges horizontal 4 and 5 of the supporting structure 1, as shown in FIG. 1.
  • the first rotary member 10 is formed by a circular barrel 11 mounted to rotate freely on a support formed by a flange 12.
  • the barrel 11 has a first lateral face 11a applied against the flange 12 and a second lateral face 11b pressed against the end plate 3 of the support structure 1.
  • the barrel 11 is mounted to rotate freely on the flange 12 by means of an axis 13 which is offset with respect to the axis of the tube 7 forming the treatment chamber 8.
  • the flange 12 has a first orifice 14 for passage of the axis 13, a second orifice 15 for fitting said flange 12 on the external wall of the tube 7 and a third orifice 16 for connection with the means 70 for routing the separation elements 9.
  • the flange 12 includes an orifice 17 for the passage of an axis 18 driven in rotation by a geared motor 18a and intended to drive the barrel 11 in rotation.
  • the barrel 11 has at its periphery a toothed crown link intended to cooperate with a pinion 18b mounted at the free end of the axis 18.
  • the flange 12 also includes an orifice 21a connected to a reservoir 22 for supplying the product to be pressurized by a flexible conduit 21 provided with a metering pump 23 (Fig. 1).
  • the barrel 11 has a central bore 19 for the passage of the axis of rotation 13.
  • the barrel 11 has on its lateral face 11a opposite the flange 12, a first blind opening 20 intended to be connected by the flexible conduit 21 and the metering pump 23 to the supply tank under pressure of the product to be pressurized and a second orifice blind 24 for introducing the product to be pressurized into the treatment chamber 8 and connected to the first orifice 20 by a channel 25 formed in said barrel 11.
  • the barrel 11 has a third through orifice 26 for transferring each separation element 9 between the conveying means 70 and the treatment chamber 8, as will be seen later.
  • the orifices 20, 24 and 26 are parallel and arranged at equal distance from the axis of rotation 13 of the barrel 11.
  • the means for sterilizing the lateral faces 11a and 11b of the barrel 11 as well as the lateral faces of the flange 12 and of the end plate 3 in contact with the barrel 11 comprise means for injecting steam, not shown, which are connected to two orifices, respectively 27 and 28, formed in the flange 12 and connected together by a ramp 29.
  • the means for sterilizing the lateral face 11a of the barrel 11 are formed by a first circular groove 30 formed at proximity of the axis of rotation 13 of this barrel 11 and by a second circular groove 31 concentric with the first groove 30 and formed at the periphery of the lateral face 11a of the barrel 11.
  • the circular grooves 30 and 31 communicate with each other by a radial channel 32.
  • the means for sterilizing the lateral face 11b of the barrel 11 comprise a first circular groove 33 formed near the axis of rotation 13 of the barrel 11 and a second circular groove 34 formed near the periphery of said lateral face 11b of barrel 11.
  • grooves 33 and 34 communicate with each other by a radial channel 35 and the radial channels 32 and 35 communicate with each other by an orifice 36 passing through the barrel 11.
  • the water vapor injected through the orifices 27 and 28 formed on the flange 12 circulates in the groove 31, the radial channel 32 and the groove 30, then passing through the orifice 36 in the groove 34, the radial channel 35 and the groove 33 and this water vapor diffuses between the lateral faces of the barrel 11 in contact with the faces of the flange 12 and of the end plate 3 so as to sterilize these various elements.
  • the second rotary member 40 for recovering successive volumes of pressurized product and of the separation elements 9.
  • the second rotary member 40 is formed by a circular barrel 41 mounted free to rotate on a support formed by a front flange 42 and a rear flange 43 between which this barrel 41 is mounted.
  • the barrel 41 is mounted free in rotation by means of an axis 44 offset from the axis of the tube 7 forming the treatment chamber 8.
  • the front flange 42 has a first central orifice 45 for passage of the axis 44, a second orifice 46 for fitting this front flange 42 on the external wall of the tube 7 and an orifice 47 for connection with the means 70 for routing the separation elements 9.
  • the front flange 42 also includes an orifice 38 for connection via a flexible conduit 49 to a reservoir 50 for recovering the pressurized product (FIG. 1).
  • the front flange 42 comprises an orifice 51 for the passage of an axis 52 connected to a geared motor 52a for driving in rotation the barrel 41.
  • the barrel 41 has on its peripheral edge a toothed ring 53 intended to cooperate with a toothed pinion 52b mounted at one free end of the axis 52 connected to the gear motor 52a.
  • the barrel 41 has a lateral face 41a facing the front flange 42 and a lateral face 41b facing the rear flange 43.
  • the barrel 41 comprises, on its lateral face 41a, a first blind opening 54 intended to be connected to the flexible conduit 49 via the opening 38 formed in the front flange 42 and a second blind opening 55 for recovering the pressurized product and connected to the first orifice 54 by a channel 56 formed in the barrel 41.
  • This barrel 41 also includes a third orifice 57 passing through for transferring each separation element 9 between the treatment chamber
  • the orifices 54, 55 and 57 are mutually parallel and arranged at equal distance from the axis of rotation
  • the barrel 41 also has a central bore 58 for the passage of the axis of rotation 44.
  • the rear flange 43 has an orifice 43a of diameter substantially equal to the diameter of the treatment chamber 8 and intended for the passage of the means 30 for compressing in this chamber 8 successive volumes of product to be pressurized.
  • the means for sterilizing the lateral faces 41a and 41b of the barrel 41 and the lateral faces of the front flange 42 and of the rear flange 43 in contact with said lateral faces of the barrel 41 comprise means for injecting water vapor, not shown, connected to two injection orifices, 59 and 60 respectively, formed in the rear flange 43 and connected together by a channel 61.
  • These sterilization means also comprise, on the lateral face 41a of the barrel 41, a first circular groove 62 formed near the axis of rotation 44 of this barrel and a second circular groove 63 concentric with the first groove 62 and formed at the periphery of the lateral face 41a of said barrel 41.
  • the grooves 62 and 63 communicate with each other by a radial channel 64.
  • the lateral face 41b of the barrel 40 comprises a first circular groove 65 formed near the axis of rotation 44 of this barrel 41 and a second circular groove 66 concentric with the first groove 65 and formed at the periphery of this face lateral 41b.
  • the circular grooves 65 and 66 communicate with each other by a radial channel 67 and the radial channels 64 and 67 communicate with each other through an orifice 68 passing through the barrel 41.
  • the water vapor injected through the orifices 59 and 60 circulates in the circular grooves 65 and 66 passing through the radial channel 67 and in the circular grooves 62 and 63 passing through the orifice 68 and the radial channel 64 of so as to circulate between the faces of the barrel 41 in contact with the front flange 42 and the rear flange 43 and to sterilize said faces.
  • the means 30 for compressing the product in the treatment chamber As shown in FIG. 1, the means 30 for compressing the product in the treatment chamber
  • the piston 30a is fixed to the free end of a rod 30b of a jack 30c, the body of which is formed by the barrel 6 of the carrying structure 1.
  • the actuator 30c comprises conduits, not shown, for supplying pressurized fluid.
  • the piston 30a can be moved horizontally in the axis of the treatment chamber 8 between a first position in which the free end of this piston 30a is retracted outside the orifice 57 of the barrel 41, a second position in which the free end of this piston 30a is placed in the second end 8b of the chamber 8 passing through the orifice 43a of the rear flange 43, the orifice 57 of the barrel 41 and the orifice 46 of the front flange 42 and a third position in which the free end of the piston 30a compresses the product to a desired processing pressure.
  • the pressurization device also comprises means 80 for adjustable clamping of the barrels 11 and 41 between the corresponding flanges so as to ensure the seal and the protection with respect to the environment.
  • adjustable clamping means 80 are formed by jacks 80a parallel to the axis of the treatment chamber 8 and arranged between the end plate 2 of the support structure 1 and the rear flange 43 for supporting the barrel 41.
  • a low pressure is applied by the jacks 80a to the flanges 42 and 43 for supporting the barrel 41 and to the flange 12 for supporting the barrel 11 during the rotation of these barrels 11 and 41 so as to limit friction and a higher pressure is applied by these jacks 80a during the compression and product supply phases to guarantee sealing.
  • the elements 9 for separating the volume of product to be sterilized with the volume of the product to be sterilized are formed by cylindrical separators with a diameter corresponding to the diameter of the treatment chamber 8, intended to ensure sealing during the compression phases and to be moved in this chamber 8 between each volume of product. These separators include sealing members with the internal wall of said chamber 8.
  • the means 70 for conveying the cylindrical separators 9 are formed by a return tube 71, arranged parallel to the treatment chamber 8 and extending between the barrels 11 and 41.
  • the pressurization device comprises means for moving the cylindrical separators 9 in the return tube 71, this return tube 71 in the barrel 11, this barrel 11 in the treatment chamber 8 and the barrel 41 in the tube back 71.
  • These displacement means are formed by the injection of a pressurized fluid.
  • the jacks 80a apply a low pressure on the barrels 11 and 41 in order to allow the rotation of these barrels 11 and 41.
  • the barrel 11 is rotated by the toothed crown 11a which cooperates with the toothed pinion 18b itself even driven in rotation by the gear motor 18a.
  • the orifice 26 of the barrel 11 is placed opposite the tube 71 and a cylindrical separator 9 is introduced into this orifice 26 by a fluid under pressure.
  • the barrel 41 is driven in rotation by means of the toothed crown 53 which cooperates with the toothed pinion 52b, itself driven in rotation by the geared motor 52a so as to place the orifice 57 of this barrel 41 in the r axis of the processing chamber 8.
  • the piston 30a is moved so that its free end passes through the orifice 57 of the barrel 41 and closes the second end 8b of the treatment chamber 8, as shown in FIG. 9A.
  • the barrel 11 is then rotated to bring the orifice 26 into which a cylindrical separator 9 has been placed in the axis of the treatment chamber 8 and this separator 9 is introduced into the first end 8a of the treatment chamber 8 by the pressurized fluid, as shown in Fig.9B.
  • the barrel 11 is again driven in rotation by the toothed pinion 18b and the geared motor 18a so as to place the orifice 24 in the axis of the treatment chamber 8 and the orifice 20 in the axis of the orifice 21a for introducing the product to be pressurized, as shown in FIG. 9C.
  • a first volume VI of product ' to be pressurized is injected into the treatment chamber 8 passing through the orifice 20, the channel 25 and the orifice 24 which has the effect of displacing the first cylindrical separator 9 up to the piston 30a .
  • the barrel 11 is rotated by the toothed pinion 18b and the geared motor 18a to place the orifice 26 in the axis of the return tube 71 so as to allow the introduction of a second cylindrical separator 9 into this orifice 26.
  • the barrel 11 is rotated to bring the orifice 26 in the axis of the treatment chamber 8 and to allow the introduction by the pressurized fluid of this second separator 9 into the treatment chamber 8, as shown in Fig. 9D.
  • This barrel 11 is again rotated to close the first end 8a of the treatment chamber 8.
  • the jacks 80a apply high pressure in order to block the barrels 11 and 41 between the flanges of the corresponding supports to guarantee sealing.
  • the piston 30a of the jack 30c is moved horizontally in the direction of the treatment chamber 8 to compress the first volume VI of product to a determined pressure, as shown in FIG.
  • the jacks 80a release the pressure exerted on the barrels 11 and 41 and the piston 30a of the jack 30b is returned to its retracted position in order to release the orifice 57 from the barrel 41.
  • the barrel 11 is rotated to bring the orifice 24 in the axis of the treatment chamber 8 and the orifice 20 in the axis of the orifice 21a and a second volume V2 of product to be pressurized is injected into the treatment chamber 8 via the metering pump 23 in such a way that this second volume V2 of product pushes the first cylindrical separator 9 into the orifice 57 of the barrel 41.
  • This barrel 41 is rotated by the intermediary of the toothed pinion 18b and of the geared motor 18a so as to place the orifice 57 containing the first separator 9 in the axis of the return tube 71.
  • This first separator 9 is pushed by the pressurized fluid into the return tube 71.
  • the barrel 41 is rotated to place the orifice 55 in the axis of the treatment chamber 8 and the orifice 54 in the axis of the orifice 48 formed in the front flange 42 and which is connected to the flexible duct 49.
  • the first volume VI of pressurized product passes through the orifice 55, the channel 57 and the orifice 54 and is injected into the recovery tank 50.
  • the second volume V2 of product to be pressurized pushes the second cylindrical separator 9 to the second end 8a of the treatment chamber.
  • Pressurized steam is injected through the openings 59 and 60 and circulates in the circular grooves 63, 65 and 66 so as to sterilize the faces of the barrel 41, the front flange 42 and the rear flange 43 which are in contact between them so as to keep the barrel 41 clean.
  • Each volume of product is compressed at a pressure between 1000 and 10000 bars.
  • the use of barrels to bring the successive volumes of product into the treatment chamber has the advantage of not discovering any part of these barrels during their rotation and thus of keeping them clean.
  • the rotation of the barrels and the injection of water vapor are automated.
  • the pressurization device makes it possible to treat large volumes of product, such as for example liquid or solid food products, while presenting all the safety guarantees essential to the use of a very high pressure.
  • pressurization process and device according to the invention allow the treated product to retain its original qualities.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)

Abstract

The invention concerns a semicontinuous method for pressurising a liquid or solid product which consists in pressurising successive product volumes by high pressure compression of said product in a treatment chamber with a generally tubular shape and circular cross-section. The invention also concerns a pressurising device for implementing said method.

Description

" Procédé et dispositif de pressurisation de produits liquides ou solides". "Method and device for pressurizing liquid or solid products".
Eâ présente invention a pour objet un procédé et un dispositif semi-continus de pressurisation d'un produit liquide ou solide comme par exemple de produits alimentaires. Le traitement par pressurisation de produits liquides ou solides à divers objectifs.The present invention relates to a semi-continuous process and device for pressurizing a liquid or solid product such as, for example, food products. Treatment by pressurization of liquid or solid products for various purposes.
Ces objectifs sont par exemple la conservation des produits, 1 ' aromatisation à cœur de ces produits ou la modification de la texture desdits produits.These objectives are, for example, the preservation of products, the flavoring at the heart of these products or the modification of the texture of said products.
Pour cela, il est connu de les soumettre à une pression pouvant atteindre une valeur de l'ordre de 8000 bars.For this, it is known to subject them to a pressure which can reach a value of the order of 8000 bars.
A cet effet, on utilise une enceinte étanche de faible capacité dans laquelle sont placés les produits qui sont soumis à une haute pression. Cette enceinte étanche est raccordée à une pompe destinée à gonfler l'intérieur de l'enceinte dans le but d'augmenter la pression interne. Dans le cas d'un fluide, ce fluide est contenu dans une enceinte étanche et soumis directement à la pression désirée obtenue à l'aide de la pompe.For this purpose, a low-capacity sealed enclosure is used in which the products which are subjected to high pressure are placed. This sealed enclosure is connected to a pump intended to inflate the interior of the enclosure in order to increase the internal pressure. In the case of a fluid, this fluid is contained in a sealed enclosure and subjected directly to the desired pressure obtained using the pump.
Dans le cas d'un élément emballé, cet élément est placé dans l'enceinte étanche et est soumis à la pression requise au moyen de ladite pompe.In the case of a packaged element, this element is placed in the sealed enclosure and is subjected to the required pressure by means of said pump.
Mais, les dispositifs utilisés jusqu'à présent ne permettent pas de pressuriser des quantités importantes de produits .However, the devices used so far do not allow to pressurize large quantities of products.
L'invention a pour but de proposer un procédé et un dispositif semi-continus de pressurisation d'un produit liquide ou solide, comme par exemple un produit alimentaire permettant de traiter des quantités importantes de produits et présentant toutes les garanties nécessaires de sécurité, tout en conservant au produit ses qualités originelles .The object of the invention is to propose a semi-continuous process and device for pressurizing a liquid or solid product, such as for example a food product making it possible to treat large quantities of products and presenting all the necessary guarantees of security, while retaining the product its original qualities.
L'invention a pour objet un procédé semi- continu de pressurisation d'un produit liquide ou solide, comme par exemple un produit alimentaire, caractérisé en ce que l'on effectue la pressurisation de volumes successifs de produit dans une chambre de traitement de forme générale tubulaire et de section circulaire, comportant deux extrémités opposées et ouvertes, en réalisant les étapes suivantes :The subject of the invention is a semi-continuous process for pressurizing a liquid or solid product, for example a food product, characterized in that one pressurizes successive volumes of product in a shape processing chamber general tubular and circular section, having two opposite and open ends, by performing the following steps:
- on introduit à l'aide d'un premier organe rotatif, au niveau de la première extrémité de la chambre, un premier séparateur de section correspondant à la section de la chambre,a first section separator corresponding to the section of the chamber is introduced using a first rotary member, at the first end of the chamber;
- on obture la seconde extrémité de la chambre ,- the second end of the chamber is closed,
- on injecte dans la chambre, à l'aide du premier organe rotatif, un premier volume de produit à pressuriser de façon à déplacer le premier séparateur jusqu'à la seconde extrémité de ladite chambre,a first volume of product to be pressurized is injected into the chamber, using the first rotary member, so as to move the first separator to the second end of said chamber,
- on introduit dans la chambre, à l'aide du premier organe rotatif, un second séparateur, on obture, par ledit premier organe rotatif, la première extrémité de la chambre,a second separator is introduced into the chamber, using the first rotary member, the first end of the chamber is closed off by said first rotary member,
- on comprime le premier volume de produit jusqu'à une pression désirée, pour traiter ce premier volume de produit, on ouvre la seconde extrémité de la chambre ,- the first volume of product is compressed to a desired pressure, to treat this first volume of product, the second end of the chamber is opened,
- on stérilise le premier organe rotatif,- the first rotary member is sterilized,
- on évacue de la chambre par un second organe rotatif le premier séparateur et le premier volume de produit pressurisé par l'injection à l'aide du premier organe rotatif d'un second volume de produit à pressuriser,- the first separator and the first are removed from the chamber by a second rotary member volume of product pressurized by injection using the first rotary member of a second volume of product to be pressurized,
- on stérilise le second organe rotatif, - et après la fermeture de la seconde extrémité de la chambre et l'injection dans ladite chambre du second volume de produit à pressuriser, on introduit dans la chambre, à l'aide du premier organe rotatif, un séparateur et on renouvelle le cycle pour la totalité du produit à traiter.- the second rotary member is sterilized, - and after the closure of the second end of the chamber and the injection into said chamber of the second volume of product to be pressurized, it is introduced into the chamber, using the first rotary member, a separator and the cycle is repeated for the entire product to be treated.
L'invention a également pour objet un dispositif de pressurisation semi-continu d'un produit liquide ou solide, comme par exemple un produit alimentaire, caractérisé en ce qu'il comprend une structure porteuse supportant :The subject of the invention is also a device for semi-continuous pressurization of a liquid or solid product, such as for example a food product, characterized in that it comprises a support structure supporting:
- un tube formant une chambre interne de traitement de section circulaire et comportant deux extrémités ouvertes et opposées,a tube forming an internal treatment chamber of circular section and comprising two open and opposite ends,
- un premier organe rotatif d'obturation de la chambre et d'introduction dans cette chambre, d'une part, de volumes successifs de produit à pressuriser et, d'autre part, d'éléments de séparation entre chaque volume de produit à pressuriser, ledit premier organe rotatif étant disposé au niveau de la première extrémité de ladite chambre,- A first rotary member for closing the chamber and for introducing into this chamber, on the one hand, successive volumes of product to be pressurized and, on the other hand, separation elements between each volume of product to be pressurized , said first rotary member being disposed at the first end of said chamber,
- des moyens de stérilisation du premier organe rotatif,means for sterilizing the first rotary member,
- des moyens de compression dans la chambre des volumes successifs de produit pour traiter ledit produit, lesdits moyens de compression étant disposés au niveau de la seconde extrémité de ladite chambre,means for compressing in the chamber successive volumes of product for treating said product, said compression means being arranged at the second end of said chamber,
- un second organe rotatif de récupération, d'une part, des volumes successifs de produit pressurisé et, d'autre part, des éléments de séparation entre chaque volume de produit pressurisé, ledit second organe rotatif étant disposé au niveau de la seconde extrémité de ladite chambre, - des moyens de stérilisation du second organe rotatif,- a second rotary member for recovering, on the one hand, successive volumes of product pressurized and, on the other hand, separating elements between each volume of pressurized product, said second rotary member being disposed at the second end of said chamber, - means for sterilizing the second rotary member,
- et des moyens d'acheminement des éléments de séparation entre chaque organe rotatif.- And means for conveying the separation elements between each rotary member.
Selon d'autres caractéristiques de 1 ' invention :According to other characteristics of the invention:
- chaque organe rotatif est formé par un barillet circulaire monté libre en rotation sur un support au moyen d ' un axe décalé par rapport à 1 ' axe de la chambre et comportant à sa périphérie une couronne dentée destinée à coopérer avec un moto-réducteur d'entraînement fixé sur ledit support,- Each rotary member is formed by a circular barrel mounted free in rotation on a support by means of an axis offset with respect to the axis of the chamber and comprising at its periphery a toothed ring intended to cooperate with a geared motor d 'drive fixed on said support,
- le barillet formant le premier organe rotatif comporte un premier orifice borgne destiné à être relié, par un conduit et une pompe doseuse, à un réservoir d'alimentation sous pression du produit à pressuriser, un second orifice borgne d'introduction du produit à pressuriser et relié au premier orifice par un canal ménagé dans ledit barillet et un troisième orifice traversant de transfert de chaque élément de séparation entre les moyens d'acheminement et la chambre de traitement, lesdits orifices étant parallèles et disposés à égale distance de l'axe de rotation dudit barillet, les moyens de compression des volumes successifs de produit sont formés par un piston de section circulaire et déplaçable dans l'axe de la chambre pour pénétrer au niveau de la seconde extrémité de ladite chambre, ledit piston étant fixé à l'extrémité libre d'une tige d'un vérin, le barillet formant le second organe rotatif comporte un premier orifice borgne destiné à être relié, par un conduit, à un réservoir de récupération du produit pressurisé, un second orifice borgne de récupération du produit pressurisé et relié au premier orifice par un canal ménagé dans ledit barillet et un troisième orifice traversant de transfert de chaque élément de séparation entre la chambre de traitement et les moyens d'acheminement, lesdits orifices étant parallèles et disposés à égale distance de l'axe de rotation dudit barillet, le dispositif comporte des moyens de serrage réglable de chaque barillet sur son support formés par des vérins parallèles à l'axe de la chambre de traitement et disposés entre une structure fixe et le support du barillet placé en regard de la seconde extrémité de ladite chambre. Les caractéristiques et avantages de- The barrel forming the first rotary member comprises a first blind orifice intended to be connected, by a conduit and a metering pump, to a pressure supply tank for the product to be pressurized, a second blind orifice for introducing the product to be pressurized and connected to the first orifice by a channel formed in said barrel and a third through orifice for transferring each separation element between the conveying means and the treatment chamber, said orifices being parallel and disposed at equal distance from the axis of rotation of said barrel, the means for compressing successive volumes of product are formed by a piston of circular section and movable in the axis of the chamber to penetrate at the second end of said chamber, said piston being fixed to the free end of a rod of a jack, the barrel forming the second rotary member comprises a first blind orifice intended to be connected, by a conduit, to a product recovery tank pressurized, a second blind orifice for recovering the pressurized product and connected to the first orifice by a channel formed in said barrel and a third through orifice for transferring each separation element between the treatment chamber and the conveying means, said orifices being parallel and arranged at equal distance from the axis of rotation of said barrel, the device comprises adjustable clamping means for each barrel on its support formed by jacks parallel to the axis of the treatment chamber and arranged between a fixed structure and the barrel support placed opposite the second end of said chamber. The characteristics and advantages of
1 ' invention apparaîtront au cours de la description qui va suivre, donnée uniquement à titre d'exemple et faite en référence aux dessins annexés, sur lesquels : la Fig. 1 est une vue schématique en élévation d'un dispositif de pressurisation conforme à 1 ' invention,1 the invention will appear during the description which follows, given only by way of example and made with reference to the accompanying drawings, in which: FIG. 1 is a schematic elevation view of a pressurization device according to the invention,
- la Fig. 2 est une vue en coupe selon la ligne 2-2 de la Fig. 1,- Fig. 2 is a sectional view along line 2-2 of FIG. 1,
- la Fig. 3 est une vue en perspective de la structure porteuse du dispositif de pressurisation conforme à l'invention, la Fig. 4 est une vue en coupe transversale éclatée d'un organe rotatif et de son support pour 1 ' introduction de produit dans la chambre de traitement du dispositif de pressurisation,- Fig. 3 is a perspective view of the supporting structure of the pressurization device according to the invention, FIG. 4 is an exploded cross-sectional view of a rotary member and its support for the introduction of product into the treatment chamber of the pressurization device,
- la Fig. 5 est une vue suivant F de la Fig. 4 et montrant une face latérale de l'organe rotatif, la Fig. 6 est une vue en coupe transversale éclatée d'un organe rotatif et de son support pour l'évacuation du produit traité,- Fig. 5 is a view along F of FIG. 4 and showing a side face of the rotary member, FIG. 6 is an exploded cross-sectional view of a rotary member and its support for discharging the treated product,
- la Fig. 7 est une vue suivant G de la Fig. 6 et montrant une face latérale de l'organe rotatif,- Fig. 7 is a view along G of FIG. 6 and showing a lateral face of the rotary member,
- la Fig. 8 est une vue suivant H de la Fig. 6 et montrant une face latérale d'un flasque du support de l'organe rotatif, - les Figs . 9A à 9G sont des schémas montrant les différentes phases de fonctionnement du dispositif de pressurisation conforme à l'invention.- Fig. 8 is a view along H of FIG. 6 and showing a side face of a flange of the support of the rotary member, - Figs. 9A to 9G are diagrams showing the different operating phases of the pressurization device according to the invention.
Sur les figures, on a représenté un dispositif semi-continu de pressurisation d'un produit liquide ou solide, comme par exemple un produit alimentaire.In the figures, there is shown a semi-continuous device for pressurizing a liquid or solid product, such as for example a food product.
Le dispositif de pressurisation représenté sur les Figs. 1 à 3 comprend une structure porteuse désignée dans son ensemble par la référence 1 et supportant :The pressurization device shown in Figs. 1 to 3 comprises a support structure designated as a whole by the reference 1 and supporting:
- un tube 7 formant une chambre interne 8 de traitement, de section circulaire et comportant deux extrémités 8a et 8b ouvertes et opposées,a tube 7 forming an internal treatment chamber 8, of circular section and comprising two open and opposite ends 8a and 8b,
- un premier organe rotatif 10 d'obturation de la chambre 8 et d'introduction dans cette chambre 8, d'une part, de volumes successifs de produit à pressuriser et, d'autre part, d'éléments de séparation 9 entre chaque volume de produit à pressuriser, ledit premier organe rotatif 10 étant disposé autour de la première extrémité 8a de ladite chambre 8,- A first rotary member 10 for closing the chamber 8 and for introducing into this chamber 8, on the one hand, successive volumes of product to be pressurized and, on the other hand, separating elements 9 between each volume of pressurized product, said first rotary member 10 being arranged around the first end 8a of said chamber 8,
- des moyens de stérilisation du premier organe rotatif 10, - des moyens 30 de compression dans la chambre 8 des volumes successifs de produit pour pressuriser ledit produit, lesdits moyens de compression étant disposés au niveau de la seconde extrémité 8b de ladite chambre 8, - un second organe rotatif 40 de récupération, d'une part, des volumes successifs de produit pressurisé et, d'autre part des éléments de séparation 9 entre chaque volume de produit pressurisé, ledit second organe rotatif 40 étant disposé au niveau de la seconde extrémité 8b de ladite chambre 8,- means for sterilizing the first rotary member 10, - means 30 for compressing in the chamber 8 successive volumes of product for pressurizing said product, said compression means being arranged at the second end 8b of said chamber 8, - a second rotary member 40 for recovering, on the one hand, successive volumes of pressurized product and, on the other hand separating elements 9 between each volume of pressurized product, said second rotary member 40 being disposed at the second end 8b of said chamber 8,
- des moyens de stérilisation du second organe rotatif 40, et des moyens 70 d'acheminement des éléments de séparation 9 entre chaque organe rotatif 10 et 40.means for sterilizing the second rotary member 40, and means 70 for conveying the separation elements 9 between each rotary member 10 and 40.
Ainsi que représenté à la Fig. 3, la structure porteuse 1 est formée par deux plaques d'extrémité verticales, respectivement 2 et 3 , percées chacune d'un orifice central et par deux flasques horizontaux et opposés, respectivement 4 et 5 , reliant les plaques d'extrémité 2 et 3.As shown in FIG. 3, the support structure 1 is formed by two vertical end plates, respectively 2 and 3, each pierced with a central orifice and by two horizontal and opposite flanges, respectively 4 and 5, connecting the end plates 2 and 3 .
Les plaques d'extrémité 2 et 3 ainsi que les flasques 4 et 5 ménagent entre eux un logement la destiné à recevoir les différents éléments du dispositif de pressurisation, comme on le verra ultérieurement .The end plates 2 and 3 as well as the flanges 4 and 5 provide between them a housing 1a intended to receive the various elements of the pressurization device, as will be seen later.
D'autre part, le flasque d'extrémité 2 comporte sur sa face externe un fût 6 destiné à supporter les moyens de compression 30 des volumes successifs de produit à pressuriser.On the other hand, the end flange 2 has on its external face a barrel 6 intended to supporting the compression means 30 of the successive volumes of product to be pressurized.
Le tube 7 formant la chambre de traitement 8 peut être de longueur modulable et dans ce cas il est formé de plusieurs éléments tubulaires, indépendants et fixés bout à bout au moyen de brides de raccordement fixées entre elles par exemple par des boulons .The tube 7 forming the treatment chamber 8 can be of modular length and in this case it is formed of several tubular elements, independent and fixed end to end by means of connection flanges fixed to each other for example by bolts.
Un joint d'étanchéité est dans ce cas disposé au niveau de 1 ' interface des éléments tubulaires associés.In this case, a seal is placed at the interface of the associated tubular elements.
L'ensemble des éléments constitués par le premier organe rotatif 10, le second organe rotatif 40 ainsi que les moyens 70 d'acheminement des éléments de séparation 9 sont disposés dans le logement la ménagé entre les plaques d'extrémité 2 et 3 et les flasques horizontaux 4 et 5 de la structure porteuse 1, comme représenté à la Fig. 1.All the elements constituted by the first rotary member 10, the second rotary member 40 as well as the means 70 for conveying the separation elements 9 are arranged in the housing formed between the end plates 2 and 3 and the flanges horizontal 4 and 5 of the supporting structure 1, as shown in FIG. 1.
Sur les Figs. 4, 6 et 9A à 9G, les moyens 70 d'acheminement des éléments de séparation ont été volontairement décalés par rapport au tube 7 dans le but de faciliter la compréhension du dispositif.In Figs. 4, 6 and 9A to 9G, the means 70 for conveying the separation elements have been deliberately offset with respect to the tube 7 in order to facilitate understanding of the device.
En se reportant maintenant aux Figs. 4 et 5, on va décrire le premier organe rotatif 10 d'obturation de la première extrémité 8a de la chambreReferring now to Figs. 4 and 5, we will describe the first rotary member 10 for closing the first end 8a of the chamber
8 et d'introduction dans cette chambre 8 de volumes successifs de produit à pressuriser et d'éléments de séparation 9.8 and the introduction into this chamber 8 of successive volumes of product to be pressurized and of separation elements 9.
Le premier organe rotatif 10 est formé par un barillet circulaire 11 monté libre en rotation sur un support formé par un flasque 12.The first rotary member 10 is formed by a circular barrel 11 mounted to rotate freely on a support formed by a flange 12.
Comme représenté à la Fig. 4, le barillet 11 comporte une première face latérale lia appliquée contre le flasque 12 et une seconde face latérale 11b plaquée contre la plaque d'extrémité 3 de la structure porteuse 1.As shown in Fig. 4, the barrel 11 has a first lateral face 11a applied against the flange 12 and a second lateral face 11b pressed against the end plate 3 of the support structure 1.
Le barillet 11 est monté libre en rotation sur le flasque 12 au moyen d'un axe 13 qui est décalé par rapport à 1 ' axe du tube 7 formant la chambre de traitement 8.The barrel 11 is mounted to rotate freely on the flange 12 by means of an axis 13 which is offset with respect to the axis of the tube 7 forming the treatment chamber 8.
Ainsi que représenté à la Fig.4, le flasque 12 comporte un premier orifice 14 de passage de l'axe 13, un second orifice 15 d'emmanchement dudit flasque 12 sur la paroi externe du tube 7 et un troisième orifice 16 de raccordement avec les moyens 70 d'acheminement des éléments de séparation 9.As shown in Fig.4, the flange 12 has a first orifice 14 for passage of the axis 13, a second orifice 15 for fitting said flange 12 on the external wall of the tube 7 and a third orifice 16 for connection with the means 70 for routing the separation elements 9.
De plus, le flasque 12 comporte un orifice 17 de passage d'un axe 18 entraîné en rotation par un moto-réducteur 18a et destiné à entraîner en rotation le barillet 11.In addition, the flange 12 includes an orifice 17 for the passage of an axis 18 driven in rotation by a geared motor 18a and intended to drive the barrel 11 in rotation.
Pour cela, le barillet 11 comporte à sa périphérie une couronne dentée lie destinée à coopérer avec un pignon 18b monté à l'extrémité libre de l'axe 18.For this, the barrel 11 has at its periphery a toothed crown link intended to cooperate with a pinion 18b mounted at the free end of the axis 18.
Le flasque 12 comporte également un orifice 21a raccordé à un réservoir 22 d'alimentation du produit à pressuriser par un conduit flexible 21 muni d'une pompe doseuse 23 (Fig. 1) .The flange 12 also includes an orifice 21a connected to a reservoir 22 for supplying the product to be pressurized by a flexible conduit 21 provided with a metering pump 23 (Fig. 1).
Le barillet 11 comporte un alésage central 19 pour le passage de l'axe de rotation 13.The barrel 11 has a central bore 19 for the passage of the axis of rotation 13.
Ainsi que représenté sur les Figs .4 et 5, le barillet 11 comporte sur sa face latérale lia en regard du flasque 12, un premier orifice borgne 20 destiné à être relié par le conduit flexible 21 et la pompe doseuse 23 au réservoir d'alimentation sous pression du produit à pressuriser et un second orifice borgne 24 d'introduction du produit à pressuriser dans la chambre de traitement 8 et relié au premier orifice 20 par un canal 25 ménagé dans ledit barillet 11.As shown in Figs. 4 and 5, the barrel 11 has on its lateral face 11a opposite the flange 12, a first blind opening 20 intended to be connected by the flexible conduit 21 and the metering pump 23 to the supply tank under pressure of the product to be pressurized and a second orifice blind 24 for introducing the product to be pressurized into the treatment chamber 8 and connected to the first orifice 20 by a channel 25 formed in said barrel 11.
Enfin, le barillet 11 comporte un troisième orifice traversant 26 de transfert de chaque élément de séparation 9 entre les moyens d'acheminement 70 et la chambre de traitement 8, comme on le verra ultérieurement .Finally, the barrel 11 has a third through orifice 26 for transferring each separation element 9 between the conveying means 70 and the treatment chamber 8, as will be seen later.
Les orifices 20, 24 et 26 sont parallèles et disposés à égale distance de l'axe de rotation 13 du barillet 11.The orifices 20, 24 and 26 are parallel and arranged at equal distance from the axis of rotation 13 of the barrel 11.
Comme représenté plus particulièrement à la Fig. 4, les moyens de stérilisation des faces latérales lia et 11b du barillet 11 ainsi que des faces latérales du flasque 12 et de la plaque d'extrémité 3 en contact avec le barillet 11 comprennent des moyens d'injection de vapeur d'eau, non représentés, qui sont reliés à deux orifices, respectivement 27 et 28, ménagés dans le flasque 12 et reliés entre eux par une rampe 29. Les moyens de stérilisation de la face latérale lia du barillet 11 sont formés par une première gorge circulaire 30 ménagée à proximité de l'axe de rotation 13 de ce barillet 11 et par une seconde gorge circulaire 31 concentrique à la première gorge 30 et ménagée à la périphérie de la face latérale lia du barillet 11.As shown more particularly in FIG. 4, the means for sterilizing the lateral faces 11a and 11b of the barrel 11 as well as the lateral faces of the flange 12 and of the end plate 3 in contact with the barrel 11 comprise means for injecting steam, not shown, which are connected to two orifices, respectively 27 and 28, formed in the flange 12 and connected together by a ramp 29. The means for sterilizing the lateral face 11a of the barrel 11 are formed by a first circular groove 30 formed at proximity of the axis of rotation 13 of this barrel 11 and by a second circular groove 31 concentric with the first groove 30 and formed at the periphery of the lateral face 11a of the barrel 11.
Les gorges circulaires 30 et 31 communiquent entre elles par un canal radial 32.The circular grooves 30 and 31 communicate with each other by a radial channel 32.
De même, les moyens de stérilisation de la face latérale 11b du barillet 11 comprennent une première gorge circulaire 33 ménagée à proximité de l'axe de rotation 13 du barillet 11 et une seconde gorge circulaire 34 ménagée à proximité de la périphérie de ladite face latérale 11b du barillet 11.Likewise, the means for sterilizing the lateral face 11b of the barrel 11 comprise a first circular groove 33 formed near the axis of rotation 13 of the barrel 11 and a second circular groove 34 formed near the periphery of said lateral face 11b of barrel 11.
Ces gorges 33 et 34 communiquent entre elles par un canal radial 35 et les canaux radiaux 32 et 35 communiquent entre eux par un orifice 36 traversant le barillet 11.These grooves 33 and 34 communicate with each other by a radial channel 35 and the radial channels 32 and 35 communicate with each other by an orifice 36 passing through the barrel 11.
Ainsi, la vapeur d'eau injectée par les orifices 27 et 28 ménagés sur le flasque 12 circule dans la gorge 31, le canal radial 32 et la gorge 30, puis en passant par l'orifice 36 dans la gorge 34, le canal radial 35 et la gorge 33 et cette vapeur d'eau se diffuse entre les faces latérales du barillet 11 en contact avec les faces du flasque 12 et de la plaque d'extrémité 3 de façon à stériliser ces différents éléments.Thus, the water vapor injected through the orifices 27 and 28 formed on the flange 12 circulates in the groove 31, the radial channel 32 and the groove 30, then passing through the orifice 36 in the groove 34, the radial channel 35 and the groove 33 and this water vapor diffuses between the lateral faces of the barrel 11 in contact with the faces of the flange 12 and of the end plate 3 so as to sterilize these various elements.
En se reportant maintenant aux Figs. 6 à 8, on va décrire le second organe rotatif 40 de récupération des volumes successifs de produit pressurisé et des éléments de séparation 9. Ainsi que représenté à la Fig. 6, le second organe rotatif 40 est formé par un barillet circulaire 41 monté libre en rotation sur un support formé d'un flasque avant 42 et d'un flasque arrière 43 entre lesquels est monté ce barillet 41. Le barillet 41 est monté libre en rotation au moyen d'un axe 44 décalé par rapport à l'axe du tube 7 formant la chambre de traitement 8.Referring now to Figs. 6 to 8, a description will be given of the second rotary member 40 for recovering successive volumes of pressurized product and of the separation elements 9. As shown in FIG. 6, the second rotary member 40 is formed by a circular barrel 41 mounted free to rotate on a support formed by a front flange 42 and a rear flange 43 between which this barrel 41 is mounted. The barrel 41 is mounted free in rotation by means of an axis 44 offset from the axis of the tube 7 forming the treatment chamber 8.
Comme représenté sur les Figs. 6 et 8, le flasque avant 42 comporte un premier orifice central 45 de passage de l'axe 44, un second orifice 46 d'emmanchement de ce flasque avant 42 sur la paroi externe du tube 7 et un orifice 47 de liaison avec les moyens 70 d'acheminement des éléments de séparation 9. Le flasque avant 42 comporte également un orifice 38 de raccordement par l'intermédiaire d'un conduit flexible 49 à un réservoir 50 de récupération du produit pressurisé (Fig. 1) . Enfin, le flasque avant 42 comporte un orifice 51 de passage d'un axe 52 relié à un moto- réducteur 52a d'entraînement en rotation du barillet 41.As shown in Figs. 6 and 8, the front flange 42 has a first central orifice 45 for passage of the axis 44, a second orifice 46 for fitting this front flange 42 on the external wall of the tube 7 and an orifice 47 for connection with the means 70 for routing the separation elements 9. The front flange 42 also includes an orifice 38 for connection via a flexible conduit 49 to a reservoir 50 for recovering the pressurized product (FIG. 1). Finally, the front flange 42 comprises an orifice 51 for the passage of an axis 52 connected to a geared motor 52a for driving in rotation the barrel 41.
Pour cela, le barillet 41 comporte sur son bord périphérique une couronne dentée 53 destinée à coopérer avec un pignon denté 52b monté à 1 ' extrémité libre de l'axe 52 relié au moto-réducteur 52a.For this, the barrel 41 has on its peripheral edge a toothed ring 53 intended to cooperate with a toothed pinion 52b mounted at one free end of the axis 52 connected to the gear motor 52a.
Le barillet 41 comporte une face latérale 41a en regard du flasque avant 42 et une face latérale 41b en regard du flasque arrière 43.The barrel 41 has a lateral face 41a facing the front flange 42 and a lateral face 41b facing the rear flange 43.
D'autre part, le barillet 41 comporte, sur sa face latérale 41a, un premier orifice borgne 54 destiné à être relié au conduit flexible 49 par l'intermédiaire de l'orifice 38 ménagé dans le flasque avant 42 et un second orifice borgne 55 de récupération du produit pressurisé et relié au premier orifice 54 par un canal 56 ménagé dans le barillet 41.On the other hand, the barrel 41 comprises, on its lateral face 41a, a first blind opening 54 intended to be connected to the flexible conduit 49 via the opening 38 formed in the front flange 42 and a second blind opening 55 for recovering the pressurized product and connected to the first orifice 54 by a channel 56 formed in the barrel 41.
Ce barillet 41 comporte également un troisième orifice 57 traversant de transfert de chaque élément de séparation 9 entre la chambre de traitementThis barrel 41 also includes a third orifice 57 passing through for transferring each separation element 9 between the treatment chamber
8 et les moyens 70 d'acheminement des éléments de séparation 9.8 and the means 70 for routing the separation elements 9.
Comme représenté plus particulièrement à la Fig. 7, les orifices 54, 55 et 57 sont parallèles entre eux et disposés à égale distance de l'axe de rotationAs shown more particularly in FIG. 7, the orifices 54, 55 and 57 are mutually parallel and arranged at equal distance from the axis of rotation
44 dudit barillet 41. Le barillet 41 comporte également un alésage central 58 pour le passage de l'axe de rotation 44.44 of said barrel 41. The barrel 41 also has a central bore 58 for the passage of the axis of rotation 44.
Le flasque arrière 43 comporte un orifice 43a de diamètre sensiblement égal au diamètre de la chambre de traitement 8 et destiné au passage des moyens 30 de compression dans cette chambre 8 des volumes successifs de produit à pressuriser.The rear flange 43 has an orifice 43a of diameter substantially equal to the diameter of the treatment chamber 8 and intended for the passage of the means 30 for compressing in this chamber 8 successive volumes of product to be pressurized.
Les moyens de stérilisation des faces latérales 41a et 41b du barillet 41 et des faces latérales du flasque avant 42 et du flasque arrière 43 en contact avec lesdites faces latérales du barillet 41 comprennent des moyens d'injection de vapeur d'eau, non représentés, raccordés à deux orifices d'injection, respectivement 59 et 60, ménagés dans le flasque arrière 43 et reliés entre eux par un canal 61.The means for sterilizing the lateral faces 41a and 41b of the barrel 41 and the lateral faces of the front flange 42 and of the rear flange 43 in contact with said lateral faces of the barrel 41 comprise means for injecting water vapor, not shown, connected to two injection orifices, 59 and 60 respectively, formed in the rear flange 43 and connected together by a channel 61.
Ces moyens de stérilisation comprennent également, sur la face latérale 41a du barillet 41, une première gorge circulaire 62 ménagée à proximité de l'axe de rotation 44 de ce barillet et une seconde gorge circulaire 63 concentrique à la première gorge 62 et ménagée à la périphérie de la face latérale 41a dudit barillet 41.These sterilization means also comprise, on the lateral face 41a of the barrel 41, a first circular groove 62 formed near the axis of rotation 44 of this barrel and a second circular groove 63 concentric with the first groove 62 and formed at the periphery of the lateral face 41a of said barrel 41.
Les gorges 62 et 63 communiquent entre elles par un canal radial 64.The grooves 62 and 63 communicate with each other by a radial channel 64.
De même, la face latérale 41b du barillet 40 comporte une première gorge circulaire 65 ménagée à proximité de l'axe de rotation 44 de ce barillet 41 et une seconde gorge circulaire 66 concentrique à la première gorge 65 et ménagée à la périphérie de cette face latérale 41b.Likewise, the lateral face 41b of the barrel 40 comprises a first circular groove 65 formed near the axis of rotation 44 of this barrel 41 and a second circular groove 66 concentric with the first groove 65 and formed at the periphery of this face lateral 41b.
Les gorges circulaires 65 et 66 communiquent entre elles par un canal radial 67 et les canaux radiaux 64 et 67 communiquent entre eux par un orifice 68 traversant le barillet 41.The circular grooves 65 and 66 communicate with each other by a radial channel 67 and the radial channels 64 and 67 communicate with each other through an orifice 68 passing through the barrel 41.
Ainsi, la vapeur d'eau injectée par les orifices 59 et 60 circule dans les gorges circulaires 65 et 66 en passant par le canal radial 67 et dans les gorges circulaires 62 et 63 en passant par l'orifice 68 et le canal radial 64 de façon à circuler entre les faces du barillet 41 en contact avec le flasque avant 42 et le flasque arrière 43 et à stériliser lesdites faces.Thus, the water vapor injected through the orifices 59 and 60 circulates in the circular grooves 65 and 66 passing through the radial channel 67 and in the circular grooves 62 and 63 passing through the orifice 68 and the radial channel 64 of so as to circulate between the faces of the barrel 41 in contact with the front flange 42 and the rear flange 43 and to sterilize said faces.
Comme représenté à la Fig.l, les moyens 30 de compression du produit dans la chambre de traitementAs shown in FIG. 1, the means 30 for compressing the product in the treatment chamber
8 sont constitués par un piston 30a de section circulaire et de diamètre correspondant au diamètre de la chambre de traitement 8.8 consist of a piston 30a of circular section and of diameter corresponding to the diameter of the treatment chamber 8.
Le piston 30a est fixé à l'extrémité libre d'une tige 30b d'un vérin 30c dont le corps est formé par le fût 6 de la structure porteuse 1.The piston 30a is fixed to the free end of a rod 30b of a jack 30c, the body of which is formed by the barrel 6 of the carrying structure 1.
De manière classique, le -vérin 30c comporte des conduits, non représentés, d'alimentation en fluide sous pression.Conventionally, the actuator 30c comprises conduits, not shown, for supplying pressurized fluid.
Le piston 30a est déplaçable horizontalement dans l'axe de la chambre de traitement 8 entre une première position dans laquelle l'extrémité libre de ce piston 30a est rétractée en dehors de l'orifice 57 du barillet 41, une seconde position dans laquelle l'extrémité libre de ce piston 30a est placée dans la seconde extrémité 8b de la chambre 8 en traversant l'orifice 43a du flasque arrière 43, l'orifice 57 du barillet 41 et l'orifice 46 du flasque avant 42 et une troisième position dans laquelle l'extrémité libre du piston 30a comprime le produit à une pression de traitement souhaitée. Ainsi que représenté sur les Figs .1 et 6, le dispositif de pressurisation comporte également des moyens 80 de serrage réglable des barillets 11 et 41 entre les flasques correspondants de manière à assurer l'étanchéité et la protection vis à vis de 1 ' environnement .The piston 30a can be moved horizontally in the axis of the treatment chamber 8 between a first position in which the free end of this piston 30a is retracted outside the orifice 57 of the barrel 41, a second position in which the free end of this piston 30a is placed in the second end 8b of the chamber 8 passing through the orifice 43a of the rear flange 43, the orifice 57 of the barrel 41 and the orifice 46 of the front flange 42 and a third position in which the free end of the piston 30a compresses the product to a desired processing pressure. As shown in Figs. 1 and 6, the pressurization device also comprises means 80 for adjustable clamping of the barrels 11 and 41 between the corresponding flanges so as to ensure the seal and the protection with respect to the environment.
Ces moyens 80 de serrage réglable sont formés par des vérins 80a parallèles à l'axe de la chambre de traitement 8 et disposés entre la plaque d'extrémité 2 de la structure porteuse 1 et le flasque arrière 43 de support du barillet 41.These adjustable clamping means 80 are formed by jacks 80a parallel to the axis of the treatment chamber 8 and arranged between the end plate 2 of the support structure 1 and the rear flange 43 for supporting the barrel 41.
Ainsi, une faible pression est appliquée par les vérins 80a sur les flasques 42 et 43 de support du barillet 41 et sur le flasque 12 de support du barillet 11 lors de la rotation de ces barillets 11 et 41 de façon à limiter les frottements et une pression plus élevée est appliquée par ces vérins 80a lors des phases de compression et d'alimentation en produit pour garantir l'étanchéité. Les éléments 9 de séparation du volume de produit stériliser avec le volume du produit à stériliser sont formés par des séparateurs cylindriques de diamètre correspondant au diamètre de la chambre de traitement 8, destinés à assurer l'étanchéité lors des phases de compression et à être déplacés dans cette chambre 8 entre chaque volume de produit. Ces séparateurs comportent des organes d'étanchéité avec la paroi interne de ladite chambre 8.Thus, a low pressure is applied by the jacks 80a to the flanges 42 and 43 for supporting the barrel 41 and to the flange 12 for supporting the barrel 11 during the rotation of these barrels 11 and 41 so as to limit friction and a higher pressure is applied by these jacks 80a during the compression and product supply phases to guarantee sealing. The elements 9 for separating the volume of product to be sterilized with the volume of the product to be sterilized are formed by cylindrical separators with a diameter corresponding to the diameter of the treatment chamber 8, intended to ensure sealing during the compression phases and to be moved in this chamber 8 between each volume of product. These separators include sealing members with the internal wall of said chamber 8.
Les moyens 70 d'acheminement des séparateurs cylindriques 9 sont formés par un tube 71 de retour, disposé parallèlement à la chambre de traitement 8 et s ' étendant entre les barillets 11 et 41. Enfin, le dispositif de pressurisation comprend des moyens de déplacement des séparateurs cylindriques 9 dans le tube de retour 71, de ce tube de retour 71 dans le barillet 11, de ce barillet 11 dans la chambre de traitement 8 et du barillet 41 dans le tube de retour 71.The means 70 for conveying the cylindrical separators 9 are formed by a return tube 71, arranged parallel to the treatment chamber 8 and extending between the barrels 11 and 41. Finally, the pressurization device comprises means for moving the cylindrical separators 9 in the return tube 71, this return tube 71 in the barrel 11, this barrel 11 in the treatment chamber 8 and the barrel 41 in the tube back 71.
Ces moyens de déplacement sont formés par l'injection d'un fluide sous pression.These displacement means are formed by the injection of a pressurized fluid.
En se reportant maintenant aux Figs . 9A à 9G, on va décrire le fonctionnement du dispositif de pressurisation selon l'invention.Referring now to Figs. 9A to 9G, we will describe the operation of the pressurization device according to the invention.
Tout d'abord, les vérins 80a appliquent une faible pression sur les barillets 11 et 41 afin de permettre la rotation de ces barillets 11 et 41. Le barillet 11 est entraîné en rotation par la couronne dentée lia qui coopère avec le pignon denté 18b lui même entraîné en rotation par le moto-réducteur 18a.First of all, the jacks 80a apply a low pressure on the barrels 11 and 41 in order to allow the rotation of these barrels 11 and 41. The barrel 11 is rotated by the toothed crown 11a which cooperates with the toothed pinion 18b itself even driven in rotation by the gear motor 18a.
L'orifice 26 du barillet 11 est placé en face du tube 71 et un séparateur cylindrique 9 est introduit dans cet orifice 26 par un fluide sous pression.The orifice 26 of the barrel 11 is placed opposite the tube 71 and a cylindrical separator 9 is introduced into this orifice 26 by a fluid under pressure.
De même, le barillet 41 est entraîné en rotation par l'intermédiaire de la couronne dentée 53 qui coopère avec le pignon denté 52b, lui même entraîné en rotation par le moto-réducteur 52a de façon à placer l'orifice 57 de ce barillet 41 dans lraxe de la chambre de traitement 8.Likewise, the barrel 41 is driven in rotation by means of the toothed crown 53 which cooperates with the toothed pinion 52b, itself driven in rotation by the geared motor 52a so as to place the orifice 57 of this barrel 41 in the r axis of the processing chamber 8.
Le piston 30a est déplacé pour que son extrémité libre traverse l'orifice 57 du barillet 41 et obture la seconde extrémité 8b de la chambre de traitement 8, comme représenté sur la Fig. 9A. Le barillet 11 est ensuite entraîné en rotation pour amener l'orifice 26 dans lequel a été placé un séparateur cylindrique 9 dans l'axe de la chambre de traitement 8 et ce séparateur 9 est introduit dans la première extrémité 8a de la chambre de traitement 8 par le fluide sous pression, comme représenté à la Fig.9B.The piston 30a is moved so that its free end passes through the orifice 57 of the barrel 41 and closes the second end 8b of the treatment chamber 8, as shown in FIG. 9A. The barrel 11 is then rotated to bring the orifice 26 into which a cylindrical separator 9 has been placed in the axis of the treatment chamber 8 and this separator 9 is introduced into the first end 8a of the treatment chamber 8 by the pressurized fluid, as shown in Fig.9B.
Le barillet 11 est de nouveau entraîné en rotation par le pignon denté 18b et le moto-réducteur 18a de façon à placer l'orifice 24 dans l'axe de la chambre de traitement 8 et l'orifice 20 dans l'axe de l'orifice 21a d'introduction du produit à pressuriser, comme représenté à la Fig. 9C .The barrel 11 is again driven in rotation by the toothed pinion 18b and the geared motor 18a so as to place the orifice 24 in the axis of the treatment chamber 8 and the orifice 20 in the axis of the orifice 21a for introducing the product to be pressurized, as shown in FIG. 9C.
Un premier volume VI de produit 'à pressuriser est injecté dans la chambre de traitement 8 en passant par l'orifice 20, le canal 25 et l'orifice 24 ce qui a pour effet de déplacer le premier séparateur cylindrique 9 jusqu'au piston 30a.A first volume VI of product ' to be pressurized is injected into the treatment chamber 8 passing through the orifice 20, the channel 25 and the orifice 24 which has the effect of displacing the first cylindrical separator 9 up to the piston 30a .
Après l'injection de ce premier volume VI de produit à pressuriser, le barillet 11 est entraîné en rotation par le pignon denté 18b et le moto- réducteur 18a pour placer l'orifice 26 dans l'axe du tube de retour 71 de façon à permettre l'introduction d'un second séparateur cylindrique 9 dans cet orifice 26.After the injection of this first volume VI of product to be pressurized, the barrel 11 is rotated by the toothed pinion 18b and the geared motor 18a to place the orifice 26 in the axis of the return tube 71 so as to allow the introduction of a second cylindrical separator 9 into this orifice 26.
Le barillet 11 est entraîné en rotation pour amener l'orifice 26 dans l'axe de la chambre de traitement 8 et pour permettre l'introduction par le fluide sous pression de ce second séparateur 9 dans la chambre de traitement 8, ainsi que représenté à la Fig. 9D. Ce barillet 11 est de nouveau entraîné en rotation pour obturer la première extrémité 8a de la chambre de traitement 8.The barrel 11 is rotated to bring the orifice 26 in the axis of the treatment chamber 8 and to allow the introduction by the pressurized fluid of this second separator 9 into the treatment chamber 8, as shown in Fig. 9D. This barrel 11 is again rotated to close the first end 8a of the treatment chamber 8.
Ensuite, les vérins 80a appliquent une pression élevée afin de bloquer les barillets 11 et 41 entre les flasques des supports correspondants pour garantir l'étanchéité.Then, the jacks 80a apply high pressure in order to block the barrels 11 and 41 between the flanges of the corresponding supports to guarantee sealing.
Le piston 30a du vérin 30c est déplacé horizontalement en direction de la chambre de traitement 8 pour comprimer à une pression déterminée le premier volume VI de produit, comme représenté à laThe piston 30a of the jack 30c is moved horizontally in the direction of the treatment chamber 8 to compress the first volume VI of product to a determined pressure, as shown in FIG.
Fig. 9 E.Fig. 9 E.
Au cours de cette compression du premier volume VI, de la vapeur d'eau est injectée par l'intermédiaire des orifices 27 et 28 ménagés dans le flasque 12 et cette vapeur d'eau circule dans les gorges circulaires 30, 31, 33 et 34 ce qui a pour effet de stériliser les faces en contact du barillet 11, du flasque 12 et de la plaque d'extrémité 3 et ainsi de conserver la propreté de ce barillet 11.During this compression of the first volume VI, water vapor is injected through the orifices 27 and 28 formed in the flange 12 and this water vapor circulates in the circular grooves 30, 31, 33 and 34 which has the effect of sterilizing the contacting faces of the barrel 11, of the flange 12 and of the end plate 3 and thus of keeping the barrel 11 clean.
Les vérins 80a relâchent la pression exercée sur les barillets 11 et 41 et le piston 30a du vérin 30b est ramené dans sa position rétractée afin de dégager l'orifice 57 du barillet 41. Le barillet 11 est entraîné en rotation pour amener l'orifice 24 dans l'axe de la chambre de traitement 8 et l'orifice 20 dans l'axe de l'orifice 21a et un second volume V2 de produit à pressuriser est injecté dans la chambre de traitement 8 par l'intermédiaire de la pompe doseuse 23 de telle manière que ce second volume V2 de produit pousse le premier séparateur cylindrique 9 dans l'orifice 57 du barillet 41. Ce barillet 41 est entraîné en rotation par 1 ' intermédiaire du pignon denté 18b et du moto- réducteur 18a de façon à placer l'orifice 57 contenant le premier séparateur 9 dans l'axe du tube de retour 71.The jacks 80a release the pressure exerted on the barrels 11 and 41 and the piston 30a of the jack 30b is returned to its retracted position in order to release the orifice 57 from the barrel 41. The barrel 11 is rotated to bring the orifice 24 in the axis of the treatment chamber 8 and the orifice 20 in the axis of the orifice 21a and a second volume V2 of product to be pressurized is injected into the treatment chamber 8 via the metering pump 23 in such a way that this second volume V2 of product pushes the first cylindrical separator 9 into the orifice 57 of the barrel 41. This barrel 41 is rotated by the intermediary of the toothed pinion 18b and of the geared motor 18a so as to place the orifice 57 containing the first separator 9 in the axis of the return tube 71.
Ce premier séparateur 9 est poussé par le fluide sous pression dans le tube de retour 71.This first separator 9 is pushed by the pressurized fluid into the return tube 71.
Ensuite, le barillet 41 est entraîné en rotation pour placer l'orifice 55 dans l'axe de la chambre de traitement 8 et l'orifice 54 dans l'axe de l'orifice 48 ménagé dans le flasque avant 42 et qui est relié au conduit flexible 49.Then, the barrel 41 is rotated to place the orifice 55 in the axis of the treatment chamber 8 and the orifice 54 in the axis of the orifice 48 formed in the front flange 42 and which is connected to the flexible duct 49.
Sous l'effet de l'injection du second volume V2 de produit à pressuriser, le premier volume VI de produit pressurisé passe dans l'orifice 55, le canal 57 et l'orifice 54 et est injecté dans le réservoir de récupération 50.Under the effect of the injection of the second volume V2 of product to be pressurized, the first volume VI of pressurized product passes through the orifice 55, the channel 57 and the orifice 54 and is injected into the recovery tank 50.
Le second volume V2 de produit à pressuriser pousse le second séparateur cylindrique 9 jusqu'à la seconde extrémité 8a de la chambre de traitement .The second volume V2 of product to be pressurized pushes the second cylindrical separator 9 to the second end 8a of the treatment chamber.
De la vapeur d'eau sous pression est injectée par les orifices 59 et 60 et circule dans les gorges circulaires 63, 65 et 66 de façon à stériliser les faces du barillet 41, du flasque avant 42 et du flasque arrière 43 qui sont en contact entre elles de manière à conserver la propreté du barillet 41.Pressurized steam is injected through the openings 59 and 60 and circulates in the circular grooves 63, 65 and 66 so as to sterilize the faces of the barrel 41, the front flange 42 and the rear flange 43 which are in contact between them so as to keep the barrel 41 clean.
Ensuite, le barillet 41 est déplacé en rotation pour amener l'orifice 57 dans l'axe de la chambre de traitement 8 et l'extrémité libre du pistonThen, the barrel 41 is moved in rotation to bring the orifice 57 in the axis of the treatment chamber 8 and the free end of the piston
30a est déplacée jusqu'à la seconde extrémité 8b de la chambre de traitement 8. Le cycle recommence et ainsi de suite jusqu'au traitement de la totalité du produit.30a is moved to the second end 8b of the treatment chamber 8. The cycle starts again and so on until the entire product is processed.
Chaque volume de produit est comprimé à une pression comprise entre 1000 et 10000 bars. L'utilisation de barillets pour amener les volumes successifs de produit dans la chambre de traitement présente 1 ' avantage de ne découvrir aucune partie de ces barillets lors de leur rotation et ainsi de conserver leur propreté. La rotation des barillets ainsi que l'injection de vapeur d'eau est automatisées.Each volume of product is compressed at a pressure between 1000 and 10000 bars. The use of barrels to bring the successive volumes of product into the treatment chamber has the advantage of not discovering any part of these barrels during their rotation and thus of keeping them clean. The rotation of the barrels and the injection of water vapor are automated.
Le dispositif de pressurisation selon 1 ' invention permet de traiter des volumes importants de produit, comme par exemple des produits liquides ou solides alimentaires, tout en présentant toutes les garanties de sécurité indispensables à l'utilisation d'une très haute pression.The pressurization device according to the invention makes it possible to treat large volumes of product, such as for example liquid or solid food products, while presenting all the safety guarantees essential to the use of a very high pressure.
De plus, le procédé et le dispositif de pressurisation selon l'invention permettent au produit traité de conserver ses qualités originelles. In addition, the pressurization process and device according to the invention allow the treated product to retain its original qualities.

Claims

REVENDICATIONS 1. Procédé semi-continu de pressurisation d'un produit liquide ou solide comme par exemple un produit alimentaire, caractérisé en ce que l'on effectue la pressurisation de volumes successifs de produit dans une chambre de traitement (8) de forme générale tubulaire et de section circulaire, comportant deux extrémités (8a, 8b) opposées et ouvertes, en réalisant les étapes suivantes: - on introduit à l'aide d'un premier organe rotatif (10), au niveau de la première extrémité (8a) de la chambre (8), un premier séparateur (9) de section correspondant à la section de la chambre (8),CLAIMS 1. Semi-continuous process for pressurizing a liquid or solid product such as for example a food product, characterized in that one pressurizes successive volumes of product in a treatment chamber (8) of generally tubular shape and of circular section, comprising two ends (8a, 8b) opposite and open, by carrying out the following steps: - using a first rotary member (10), at the level of the first end (8a) of the chamber (8), a first section separator (9) corresponding to the section of the chamber (8),
- on obture la seconde extrémité (8b) de la chambre (8) ,- the second end (8b) of the chamber (8) is closed,
- on injecte dans la chambre (8) à l'aide du premier organe rotatif (10), un premier volume de produit à pressuriser de façon à déplacer le premier séparateur (9) jusqu'à la seconde extrémité (8b) de ladite chambre (8),- Is injected into the chamber (8) using the first rotary member (10), a first volume of product to be pressurized so as to move the first separator (9) to the second end (8b) of said chamber (8),
- on introduit dans la chambre (8) à l'aide du premier organe rotatif (10) un second séparateur- A second separator is introduced into the chamber (8) using the first rotary member (10)
(9) , on obture par ledit premier organe rotatif (10) la première extrémité (8a) de la chambre(9), the first end (8a) of the chamber is closed by said first rotary member (10).
(8) ,(8),
- on comprime le premier volume de produit jusqu'à une pression désirée pour traiter ce premier volume de produit, - on ouvre la seconde extrémité (8b) de la chambre ( 8 ) ,- the first volume of product is compressed to a desired pressure to process this first volume of product, - the second end (8b) of the chamber (8) is opened,
- on' stérilise le premier organe rotatif- on 'sterilized first rotary member
(10) , - on évacue de la chambre (8) par un second organe rotatif (40) le premier séparateur (9) et le premier volume de produit pressurisé par l'injection à l'aide du premier organe rotatif (10) d'un second volume de produit à pressuriser,(10), - the first separator (9) and the first volume of product pressurized by injection using the first rotary member (10) of a second volume are removed from the chamber (8) by a second rotary member (40) of pressurized product,
- on stérilise le second organe rotatif (40) , et après la fermeture de la seconde extrémité (8b) de la chambre (8) et l'injection dans ladite chambre (8) du second volume de produit à pressuriser, on introduit dans la chambre (8) à l'aide du premier organe rotatif (10) un séparateur (9) et on renouvelle le cycle pour la totalité du produit à traiter. - The second rotary member (40) is sterilized, and after the closure of the second end (8b) of the chamber (8) and the injection into said chamber (8) of the second volume of product to be pressurized, it is introduced into the chamber (8) using the first rotary member (10) a separator (9) and the cycle is renewed for the entire product to be treated.
2. Dispositif de pressurisation en semi- continu d'un produit liquide ou solide comme par exemple un produit alimentaire, caractérisé en ce qu'il comprend une structure porteuse (1) supportant :2. Semi-continuous pressurization device for a liquid or solid product such as for example a food product, characterized in that it comprises a support structure (1) supporting:
- un tube (7) formant une chambre interne (8) de traitement, de section circulaire et comportant deux extrémités (8a, 8b) ouvertes et opposées, un premier organe rotatif (10) d'obturation de la chambre (8) et d'introduction dans cette chambre (8) , d'une part, de volumes successifs de produit à pressuriser et, d'autre part, d'éléments de séparation (9) entre chaque volume de produit à pressuriser, ledit premier organe rotatif étant disposé au niveau de la première extrémité (8a) de la chambre (8) , - des moyens de stérilisation du premier organe rotatif (10) ,- a tube (7) forming an internal treatment chamber (8), of circular section and comprising two open and opposite ends (8a, 8b), a first rotary member (10) for closing the chamber (8) and d introduction into this chamber (8), on the one hand, of successive volumes of product to be pressurized and, on the other hand, of separation elements (9) between each volume of product to be pressurized, said first rotary member being disposed at the first end (8a) of the chamber (8), - means for sterilizing the first rotary member (10),
- des moyens (30) de compression dans la chambre (8) des volumes successifs de produit pour traiter ledit produit, lesdits moyens (30) de compression étant disposés au niveau de la seconde extrémité (8b) de la chambre (8), un second organe rotatif (40) de récupération, d'une part, des volumes successifs de produit pressurisé et, d'autre part, des éléments de séparation (9) entre chaque volume de produit pressurisé, ledit second organe rotatif (40) étant disposé au niveau de la seconde extrémité (8b) de ladite chambre (8),- Means (30) for compressing in the chamber (8) successive volumes of product for treating said product, said compression means (30) being arranged at the second end (8b) of the chamber (8), a second rotary member (40) for recovering, on the one hand, successive volumes of pressurized product and, on the other hand, separating elements (9) between each volume of pressurized product, said second rotary member (40) being disposed at the second end (8b) of said chamber (8),
- des moyens de stérilisation du second organe rotatif (40), et des moyens (70) d'acheminement des éléments de séparation (9) entre chaque organe rotatif (10, 40) .- means for sterilizing the second rotary member (40), and means (70) for conveying the separation elements (9) between each rotary member (10, 40).
3. Dispositif selon la revendication 2, caractérisé en ce que le premier organe rotatif (10) est formé par un barillet circulaire (11) monté libre en rotation sur un support (3, 12) au moyen d'un axe (13) décalé par rapport à l'axe de la chambre (8) et comportant à sa périphérie une couronne dentée (lie) destinée à coopérer avec un moto-réducteur (18, 18a, 18b) d'entraînement fixé sur ledit support.3. Device according to claim 2, characterized in that the first rotary member (10) is formed by a circular barrel (11) mounted freely in rotation on a support (3, 12) by means of an offset axis (13) relative to the axis of the chamber (8) and comprising at its periphery a toothed crown (lie) intended to cooperate with a gear motor (18, 18a, 18b) of drive fixed on said support.
4. Dispositif selon la revendication 3 , caractérisé en ce que le barillet (11) comporte un premier orifice borgne (20) destiné à être relié, par un conduit (21) et une pompe doseuse (23), à un réservoir (22) d'alimentation sous pression du produit à pressuriser, un second orifice borgne (24) d'introduction du produit à pressuriser et relié au premier orifice (20) par un canal (25) ménagé dans ledit barillet (11) et un troisième orifice traversant (26) de transfert de chaque élément de séparation (9) entre les moyens (70) d'acheminement et la chambre de traitement (8), lesdits orifices (20, 24, 26) étant parallèles et disposés à égale distance de l'axe de rotation (13) dudit barillet (11). 4. Device according to claim 3, characterized in that the barrel (11) has a first blind opening (20) intended to be connected, by a conduit (21) and a metering pump (23), to a reservoir (22) pressurized supply of the product to be pressurized, a second blind orifice (24) for introducing the product to be pressurized and connected to the first orifice (20) by a channel (25) formed in said barrel (11) and a third through orifice (26) transfer of each separating element (9) between the conveying means (70) and the treatment chamber (8), said orifices (20, 24, 26) being parallel and arranged at equal distance from the axis of rotation (13) of said barrel (11).
5. Dispositif selon l'une quelconque des revendications 2 à 4, caractérisé en ce que les moyens de stérilisation du premier organe rotatif (10) et de son support (3, 12) comprennent des moyens d'injection de vapeur d'eau et, sur chaque face latérale (lia, 11b) du barillet (11) , une première gorge circulaire (30 ; 33) managée à proximité de l'axe de rotation (13) de ce barillet (11) et une seconde gorge circulaire (31 ; 34) concentrique à la première gorge (30 ; 33) et ménagée à la périphérie dudit barillet (11), lesdites gorges (30/ 31 ; 33, 34) de chaque face latérale (lia, 11b) communiquant entre elles par un canal radial (32 ; 35) et le canal radial (32) de l'une des faces latérales communiquant avec le canal radial (35) de l'autre desdites faces latérales par un orifice (36) traversant ledit barillet (11) .5. Device according to any one of claims 2 to 4, characterized in that the means for sterilizing the first rotary member (10) and its support (3, 12) comprise means for injecting steam and , on each lateral face (11a, 11b) of the barrel (11), a first circular groove (30; 33) managed near the axis of rotation (13) of this barrel (11) and a second circular groove (31 ; 34) concentric with the first groove (30; 33) and formed at the periphery of said barrel (11), said grooves (30/31; 33, 34) of each lateral face (11a, 11b) communicating with each other by a channel radial (32; 35) and the radial channel (32) of one of the lateral faces communicating with the radial channel (35) of the other of said lateral faces by an orifice (36) passing through said barrel (11).
6. Dispositif selon la revendication 5, caractérisé en ce que les moyens d'injection de vapeur d'eau sont reliés à l'une des gorges (30 ; 31) de la face latérale (11b) du barillet (11) en regard de la première extrémité (8a) de la chambre de traitement (8) .6. Device according to claim 5, characterized in that the steam injection means are connected to one of the grooves (30; 31) of the lateral face (11b) of the barrel (11) opposite the first end (8a) of the treatment chamber (8).
7. Dispositif selon la revendication 2, caractérisé en ce que les moyens (30) de compression des volumes successifs de produit sont formés par un piston (30a) de section circulaire et deplaçable dans l'axe de la chambre de traitement (8) pour pénétrer au niveau de la seconde extrémité (8b) de ladite chambre (8), ledit piston (30a) étant fixé à l'extrémité libre d'une tige (30b) d'un vérin (30c) .7. Device according to claim 2, characterized in that the means (30) for compressing successive volumes of product are formed by a piston (30a) of circular section and displaceable in the axis of the treatment chamber (8) for penetrate at the second end (8b) of said chamber (8), said piston (30a) being fixed to the free end of a rod (30b) of a jack (30c).
8. Dispositif selon la revendication 2, caractérisé en ce que le second organe rotatif (40) est formé par un barillet circulaire (41) monté libre en rotation sur un support (42,43) au moyen d'un axe (44) décalé par rapport à l'axe de la chambre (8) et comportant à sa périphérie une couronne dentée (53) destinée à coopérer avec un moto-réducteur (52a, 52b) d'entraînement fixé sur ledit support.8. Device according to claim 2, characterized in that the second rotary member (40) is formed by a circular barrel (41) mounted free in rotation on a support (42,43) by means of an axis (44) offset relative to the axis of the chamber (8) and comprising at its periphery a toothed ring (53) intended to cooperate with a geared motor (52a, 52b) fixed on said support.
9. Dispositif selon la revendication 8, caractérisé en ce que le barillet (41) comporte un premier orifice borgne (54) destiné à être relié, par un conduit flexible (49), à un réservoir de récupération (50) du produit pressurisé, un second orifice borgne (55) de récupération du produit pressurisé et relié au premier orifice (54) par un canal (56) ménagé dans ledit barillet (41) et un troisième orifice traversant (57) de transfert de chaque élément de séparation (9) entre la chambre de traitement (8) et les moyens (70) d'acheminement, lesdits orifices (54, 55, 57) étant parallèles et disposés à égale distance de l'axe de rotation dudit barillet (41) . 9. Device according to claim 8, characterized in that the barrel (41) comprises a first blind orifice (54) intended to be connected, by a flexible conduit (49), to a recovery tank (50) of the pressurized product, a second blind orifice (55) for recovering the pressurized product and connected to the first orifice (54) by a channel (56) formed in said barrel (41) and a third through orifice (57) for transferring each separation element (9 ) between the treatment chamber (8) and the conveying means (70), said orifices (54, 55, 57) being parallel and arranged at equal distance from the axis of rotation of said barrel (41).
10. Dispositif selon l'une quelconque des revendications 2, 8 ou 9, caractérisé en ce que les moyens de stérilisation du second organe rotatif (40) et de son support (42, 43) comprennent des moyens d'injection de vapeur d'eau et, sur chaque face latérale (41a ; 41b) du barillet (41), une première gorge circulaire (62 ; 65) ménagée à proximité de l'axe de rotation (44) de ce barillet (41) et une seconde gorge circulaire (63 ; 66) concentrique à la première gorge (62 ; 65) et ménagée à la périphérie dudit barillet (41), lesdites gorges (62, 63 ; 65, 66) de chaque face latérale (41a ; 41b) communiquant entre elles par un canal radial (64 ; 67) et le canal radial (64) de l'une des faces latérales communiquant avec le canal (67) de l'autre desdites faces latérales par un orifice (68) traversant ledit barillet (41).10. Device according to any one of claims 2, 8 or 9, characterized in that the means for sterilizing the second rotary member (40) and its support (42, 43) comprise means for injecting steam from water and, on each lateral face (41a; 41b) of the barrel (41), a first circular groove (62; 65) formed near the axis of rotation (44) of this barrel (41) and a second circular groove (63; 66) concentric to the first groove (62; 65) and formed at the periphery of said barrel (41), said grooves (62, 63; 65, 66) of each lateral face (41a; 41b) communicating with each other by a radial channel (64; 67) and the radial channel (64) of one of the lateral faces communicating with the channel (67) of the other of said lateral faces by an orifice (68) passing through said barrel (41).
11. Dispositif selon la revendication 10, caractérisé en ce que les moyens d'injection de vapeur d'eau sont reliés à l'une des gorges circulaires (65; 66 ) de la face latérale (41b) du barillet (41) opposée à celle en regard de la seconde extrémité (8b) de la chambre de traitement (8) .11. Device according to claim 10, characterized in that the water vapor injection means are connected to one of the circular grooves (65; 66) of the lateral face (41b) of the barrel (41) opposite to the one opposite the second end (8b) of the treatment chamber (8).
12. Dispositif selon l'une quelconque des revendications 2 à 11, caractérisé en ce qu'il comporte des moyens (80) de serrage réglable de chaque barillet (11 ; 41) sur son support (3, 12 ; 42, 43).12. Device according to any one of claims 2 to 11, characterized in that it comprises means (80) for adjustable clamping of each barrel (11; 41) on its support (3, 12; 42, 43).
13. Dispositif selon la revendication 12, caractérisé en ce que les moyens (80) de serrage réglable sont formés par des vérins (80a) parallèles à l'axe de la chambre de traitement (8) et disposés entre une structure fixe (2) et le support (12) du barillet (41) placé en regard de la seconde extrémité (8b) de ladite chambre (8) . 13. Device according to claim 12, characterized in that the means (80) of adjustable clamping are formed by jacks (80a) parallel to the axis of the treatment chamber (8) and arranged between a fixed structure (2) and the support (12) of the barrel (41) placed opposite the second end (8b) of said chamber (8).
14. Dispositif selon la revendication 2, caractérisé en ce que les éléments de séparation du volume de produit pressurisé avec le volume de produit à pressuriser sont formés par des séparateurs cylindriques (9) de diamètre correspondant au diamètre de la chambre (8), destinés à être déplacés dans la chambre (8) entre chaque volume de produit et comportant des organes d'étanchéité avec la paroi interne de ladite chambre (8) . 14. Device according to claim 2, characterized in that the elements for separating the volume of pressurized product from the volume of product to be pressurized are formed by cylindrical separators (9) of diameter corresponding to the diameter of the chamber (8), intended to be moved in the chamber (8) between each volume of product and comprising sealing members with the internal wall of said chamber (8).
15. Dispositif selon les revendications 2 et 14, caractérisé en ce que les moyens (70) d'acheminement des séparateurs cylindriques (9) sont formés par un tube de retour (71) parallèle à la chambre de traitement et s 'étendant entre lesdits barillets (11 ; 41) .15. Device according to claims 2 and 14, characterized in that the means (70) for conveying the cylindrical separators (9) are formed by a return tube (71) parallel to the treatment chamber and extending between said barrels (11; 41).
16. Dispositif selon l'une quelconque des revendications 1 à 15, caractérisé en ce qu'il comprend des moyens de déplacement des séparateurs cylindriques (9) dans le tube de retour (71), de ce tube de retour16. Device according to any one of claims 1 to 15, characterized in that it comprises means for moving the cylindrical separators (9) in the return tube (71), of this return tube
(71) dans le barillet (11) d'introduction, de ce barillet (11) d'introduction dans la chambre de traitement (8) et du barillet (41) de récupération dans ledit tube de retour (71) . (71) in the barrel (11) for introduction, this barrel (11) for introduction into the treatment chamber (8) and the barrel (41) for recovery in said return tube (71).
17. Dispositif selon la revendication 16, caractérisé en ce que les moyens de déplacement des séparateurs cylindriques (9) sont formés par un fluide sous pression. 17. Device according to claim 16, characterized in that the means for moving the cylindrical separators (9) are formed by a pressurized fluid.
PCT/FR1998/001193 1997-06-10 1998-06-10 Method and device for pressurising liquid or solid objects WO1998056264A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9707194A FR2764233B1 (en) 1997-06-10 1997-06-10 METHOD AND DEVICE FOR PRESSURIZING LIQUID OR SOLID PRODUCTS
FR97/07194 1997-06-10

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WO1998056264A1 true WO1998056264A1 (en) 1998-12-17

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WO (1) WO1998056264A1 (en)

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EP0623353A1 (en) * 1993-05-07 1994-11-09 Framatome Apparatus for high pressure sterilization of products
WO1994028745A1 (en) * 1993-06-11 1994-12-22 Asea Brown Boveri Ab Device for high-pressure treatment of substances
EP0692260A1 (en) * 1994-07-12 1996-01-17 Gec Alsthom Acb Device for high pressure treatment of products in flexible packages
EP0727227A1 (en) * 1995-02-15 1996-08-21 Framatome Method and apparatus for high pressure sterilization of products
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EP0623353A1 (en) * 1993-05-07 1994-11-09 Framatome Apparatus for high pressure sterilization of products
WO1994028745A1 (en) * 1993-06-11 1994-12-22 Asea Brown Boveri Ab Device for high-pressure treatment of substances
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EP0727227A1 (en) * 1995-02-15 1996-08-21 Framatome Method and apparatus for high pressure sterilization of products
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FR2764233B1 (en) 1999-09-17

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