WO2001032026A1 - Tunnel for continuous treatment of articles - Google Patents

Tunnel for continuous treatment of articles Download PDF

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Publication number
WO2001032026A1
WO2001032026A1 PCT/FR2000/003072 FR0003072W WO0132026A1 WO 2001032026 A1 WO2001032026 A1 WO 2001032026A1 FR 0003072 W FR0003072 W FR 0003072W WO 0132026 A1 WO0132026 A1 WO 0132026A1
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WO
WIPO (PCT)
Prior art keywords
enclosure
tunnel
articles
tunnel according
chamber
Prior art date
Application number
PCT/FR2000/003072
Other languages
French (fr)
Inventor
Ernest Cherici
Dominique Bonnot
Original Assignee
Rhodia Chimie
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 Rhodia Chimie filed Critical Rhodia Chimie
Priority to AU12876/01A priority Critical patent/AU1287601A/en
Publication of WO2001032026A1 publication Critical patent/WO2001032026A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/0207—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the work being an elongated body, e.g. wire or pipe
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B4/00—General methods for preserving meat, sausages, fish or fish products
    • A23B4/02—Preserving by means of inorganic salts
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B4/00—General methods for preserving meat, sausages, fish or fish products
    • A23B4/14—Preserving with chemicals not covered by groups A23B4/02 or A23B4/12
    • A23B4/16—Preserving with chemicals not covered by groups A23B4/02 or A23B4/12 in the form of gases, e.g. fumigation; Compositions or apparatus therefor
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B4/00—General methods for preserving meat, sausages, fish or fish products
    • A23B4/14—Preserving with chemicals not covered by groups A23B4/02 or A23B4/12
    • A23B4/18—Preserving with chemicals not covered by groups A23B4/02 or A23B4/12 in the form of liquids or solids
    • A23B4/24—Inorganic compounds
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B4/00—General methods for preserving meat, sausages, fish or fish products
    • A23B4/26—Apparatus for preserving using liquids ; Methods therefor
    • A23B4/30—Apparatus for preserving using liquids ; Methods therefor by spraying of liquids
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B4/00—General methods for preserving meat, sausages, fish or fish products
    • A23B4/26—Apparatus for preserving using liquids ; Methods therefor
    • A23B4/30—Apparatus for preserving using liquids ; Methods therefor by spraying of liquids
    • A23B4/305—Apparatus for preserving using liquids ; Methods therefor by spraying of liquids with inorganic salts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B16/00—Spray booths
    • B05B16/60—Ventilation arrangements specially adapted therefor

Definitions

  • the present invention relates to a continuous treatment tunnel for a succession of articles with an agent which produces aerosols, of the type comprising a treatment enclosure open at its two ends, a conveyor located outside the enclosure and provided a succession of support members for said articles which enter the enclosure, and devices for dispersing said agent in the enclosure.
  • the invention applies in particular to the bactericidal treatment of portions of edible flesh, in particular of freshly slaughtered bird carcasses, using a solution of trisodium phosphate or TSP.
  • Certain liquid agents produce toxic aerosols when they are dispersed, in particular sprayed in the form of a mist, inside a treatment enclosure. This makes it very difficult to carry out, under satisfactory conditions for the staff, a continuous scrolling of the articles to be treated through the enclosure.
  • the object of the invention is to provide economic means capable of effectively preventing aerosols from reaching the space surrounding the tunnel.
  • the subject of the invention is a treatment tunnel of the aforementioned type, characterized in that it comprises: - at the entrance and at the exit of the enclosure, means for creating a transverse circulation of gas; in at least one location along the length of the enclosure, means for extracting gas from the enclosure, provided with means for retaining the liquid phase entrained by these gases, said extraction means being adapted to establish in the enclosure a slight depression; and - At the top of the enclosure and all along it, two brushes, the bristles of which interpenetrate, the support members for said articles passing through the interpenetration area of the bristles.
  • the treatment tunnel according to the invention may include one or more of the following characteristics, taken in isolation or in all their technically possible combinations:
  • - Said extraction means are provided at least at each end of the enclosure, where they constitute said means for creating a transverse circulation of gas;
  • the tunnel comprises a box outside the enclosure and surrounding the brushes, and means for placing this box under a slight overpressure;
  • the dispersing devices are spray nozzles adapted to form a fog in said enclosure with said agent;
  • the support members are suspension members, the conveyor being located above the enclosure;
  • said articles are portions of edible flesh, in particular bird carcasses;
  • Said agent is an alkaline solution based on food phosphate, in particular a solution of trisodium phosphate.
  • FIG. 1 is a schematic view at the end of a treatment tunnel according to the invention.
  • FIG. 1 is a partial schematic side view of the same tunnel.
  • the tunnel 1 shown in Figures 1 and 2 is intended for the continuous bactericidal treatment of poultry carcasses 2 using a TSP solution. It essentially comprises a treatment enclosure 3 of elongated shape, with a general axis XX horizontal, a conveyor 4, a main device 5 for extracting gas from the enclosure 3, and a secondary device 6 for extracting gas outside enclosure 3.
  • the enclosure 3 symmetrical with respect to a vertical longitudinal median plane P, comprises two side walls 7, a bottom bottom 8 from which flow pipes 9 for collecting and discharging treatment effluents, and a device for upper seal 10 which extends over the entire length of the tunnel.
  • This device 10 comprises, on each side of the plane P, a horizontal bar 11 fixed to the adjacent upper edge of the corresponding wall 7, and a brush 12 which leaves this bar in the direction of the plane P.
  • the bristles of the two brushes 12 are provided over a substantial height of several centimeters and interpenetrate in the region of the plane P.
  • a number of nozzles 13 for spraying the treatment solution, for example by means of compressed air creating an effect of venturi.
  • the size of the droplets created by these nozzles is chosen so as to create in the enclosure 3 a mist of the treatment solution.
  • This mist forms an aerosol that would be dangerous to breathe, but which is prevented from leaving the enclosure 3 thanks to the extraction devices 5 and 6 and to the sealing device 10, as will be explained below.
  • the conveyor 4 comprises an endless band whose lower strand 13 runs just above the device 10, in the plane P. From this band hang cables or suspension rods 14 which end in hooks 15 for the carcasses 2 .
  • the extraction device 5 comprises, at each end of the enclosure 3 and on each side of the plane P, a collector 16 which has a vertical inlet slot 17 facing the plane P, and a suction line 18 provided a shock filter 19, associated with the collector 16.
  • the device 5 also comprises a blower 20 connected by pipes 21 to the four pipes 18 and discharging into a chimney 22.
  • the extraction device 6 comprises at least one blower 23 connected upstream, via pipes 24 fitted with a shock filter 25, to at least one intermediate location 26 of the length of the tunnel, and discharging into a chimney 27.
  • two blowers 23 are provided, each of which is connected to two intermediate locations 26 of one of the side walls 7, at the axis XX.
  • the suspended carcasses 2 penetrate into the enclosure 3 at one end, between the slots 17 of the collectors 16, circulate all along this enclosure and exit from it through the other end (not visible on the
  • the cables or rods 14 pass through the device 10 in the plane P, that is to say in the region of interpenetration of the bristles of the two brushes 12.
  • the nozzles 13 create in the enclosure 3 the mist of TSP, and the devices 5 and 6 suck up part of this mist.
  • Each suction stream is freed from its droplets by the corresponding shock filter 19 or 25, so that the chimneys 22 and 27 reject harmless gas streams.
  • the blowers 20 and 23 are of variable flow, and their suction flow rates are adjusted so as to permanently maintain a slight depression in the enclosure. This ensures that fog cannot escape from the enclosure through its inlet and outlet openings.
  • the device 10 provides a generally satisfactory seal at the top of the tunnel.
  • the device 5 can be replaced by two air curtains provided at the ends of the enclosure 3, but this seems less effective as a barrier against aerosols.

Abstract

The invention concerns a tunnel comprising a conveyor (4) provided with a succession of elements (14) for suspending articles (2) which penetrate into the treatment chamber (3), and devices (13) for dispersing treating agent in the treatment chamber. At the inlet and the outlet of the chamber, means (5) are provided for generating a transverse gas flow; in at least one site along the length of the chamber, means (6) for extracting gas, provided with means (25) for retaining the entrained liquid phase, said means being adapted to create in the chamber a light negative pressure, and at the top of the chamber, two brushes (10) whereof the bristles are interlocked, the suspension elements (14) passing through the interlocking zone. The invention is useful for bactericidal treatment of bird carcasses by trisodium phosphate spraying.

Description

Tunnel de traitement d'articles en continu Continuous article processing tunnel
La présente invention est relative à un tunnel de traitement en continu d'une succession d'articles avec un agent qui produit des aérosols, du type comprenant une enceinte de traitement ouverte à ses deux extrémités, un convoyeur situé hors de l'enceinte et muni d'une succession d'organes de support desdits articles qui pénètrent dans l'enceinte, et des dispositifs de dispersion dudit agent dans l'enceinte.The present invention relates to a continuous treatment tunnel for a succession of articles with an agent which produces aerosols, of the type comprising a treatment enclosure open at its two ends, a conveyor located outside the enclosure and provided a succession of support members for said articles which enter the enclosure, and devices for dispersing said agent in the enclosure.
L'invention s'applique en particulier au traitement bactéricide de portions de chair comescible, notamment de carcasses d'oiseaux fraîchement abattus, au moyen d'une solution de phosphate trisodique ou TSP.The invention applies in particular to the bactericidal treatment of portions of edible flesh, in particular of freshly slaughtered bird carcasses, using a solution of trisodium phosphate or TSP.
Certains agents liquides produisent des aérosols toxiques lorsqu'ils sont dispersés, notamment pulvérisés sous forme d'un brouillard, à l'intérieur d'une enceinte de traitement. Ceci rend très difficile d'effectuer dans des conditions satisfaisantes pour le personnel un défilement continu des articles à traiter à travers l'enceinte.Certain liquid agents produce toxic aerosols when they are dispersed, in particular sprayed in the form of a mist, inside a treatment enclosure. This makes it very difficult to carry out, under satisfactory conditions for the staff, a continuous scrolling of the articles to be treated through the enclosure.
L'invention a pour but de fournir des moyens économiques capables d'empêcher efficacement les aérosols d'atteindre l'espace environnant le tunnel.The object of the invention is to provide economic means capable of effectively preventing aerosols from reaching the space surrounding the tunnel.
A cet effet, l'invention a pour objet un tunnel de traitement du type précité, caractérisé en ce qu'il comprend : - à l'entrée et à la sortie de l'enceinte, des moyens de création d'une circulation transversale de gaz; en au moins un emplacement de la longueur de l'enceinte, des moyens d'extraction de gaz hors de l'enceinte, munis de moyens de retenue de la phase liquide entraînée par ces gaz, lesdits moyens d'extraction étant adaptés pour établir dans l'enceinte une légère dépression; et - au sommet de l'enceinte et tout le long de celle- ci, deux brosses dont les poils s'interpénétrent, les organes de support desdits articles passant dans la zone d'interpénétration des poils. Le tunnel de traitement suivant l'invention peut comporter une ou plusieurs des caractéristiques suivantes, prises isolément ou suivant toutes leurs combinaisons techniquement possibles :To this end, the subject of the invention is a treatment tunnel of the aforementioned type, characterized in that it comprises: - at the entrance and at the exit of the enclosure, means for creating a transverse circulation of gas; in at least one location along the length of the enclosure, means for extracting gas from the enclosure, provided with means for retaining the liquid phase entrained by these gases, said extraction means being adapted to establish in the enclosure a slight depression; and - At the top of the enclosure and all along it, two brushes, the bristles of which interpenetrate, the support members for said articles passing through the interpenetration area of the bristles. The treatment tunnel according to the invention may include one or more of the following characteristics, taken in isolation or in all their technically possible combinations:
- lesdits moyens d'extraction sont prévus au moins en un emplacement intermédiaire de la longueur de- Said extraction means are provided at least at an intermediate location of the length of
1 ' enceinte ;The enclosure;
- lesdits moyens d'extraction sont prévus au moins à chaque extrémité de l'enceinte, où ils constituent lesdits moyens de création d'une circulation transversale de gaz ; - le tunnel comprend un caisson extérieur à l'enceinte et entourant les brosses, et des moyens de mise de ce caisson sous une légère surpression ;- Said extraction means are provided at least at each end of the enclosure, where they constitute said means for creating a transverse circulation of gas; - The tunnel comprises a box outside the enclosure and surrounding the brushes, and means for placing this box under a slight overpressure;
- les dispositifs de dispersion sont des buses de pulvérisation adaptées pour former dans l'enceinte un brouillard audit agent ; les organes de support sont des organes de suspension, le convoyeur étant situé au-dessus de l'enceinte ; lesdits articles sont des portions de chair comestible, notamment des carcasses d'oiseaux ; etthe dispersing devices are spray nozzles adapted to form a fog in said enclosure with said agent; the support members are suspension members, the conveyor being located above the enclosure; said articles are portions of edible flesh, in particular bird carcasses; and
- ledit agent est une solution alcaline à base de phosphate alimentaire, notamment une solution de phosphate trisodique .- Said agent is an alkaline solution based on food phosphate, in particular a solution of trisodium phosphate.
Un exemple de réalisation de l'invention va maintenant être décrit en regard du dessin annexé, sur lequel : - la Figure 1 est une vue schématique en bout d'un tunnel de traitement conforme à l'invention ; etAn exemplary embodiment of the invention will now be described with reference to the attached drawing, in which: - Figure 1 is a schematic view at the end of a treatment tunnel according to the invention; and
- la Figure 2 est une vue schématique partielle de côté du même tunnel . Le tunnel 1 représenté aux Figures 1 et 2 est destiné au traitement bactéricide en continu de carcasses de volailles 2 au moyen d'une solution de TSP. Il comprend essentiellement une enceinte de traitement 3 de forme allongée, d'axe général X-X horizontal, un convoyeur 4, un dispositif principal 5 d'extraction de gaz hors de l'enceinte 3, et un dispositif secondaire 6 d'extraction de gaz hors de l'enceinte 3.- Figure 2 is a partial schematic side view of the same tunnel. The tunnel 1 shown in Figures 1 and 2 is intended for the continuous bactericidal treatment of poultry carcasses 2 using a TSP solution. It essentially comprises a treatment enclosure 3 of elongated shape, with a general axis XX horizontal, a conveyor 4, a main device 5 for extracting gas from the enclosure 3, and a secondary device 6 for extracting gas outside enclosure 3.
L'enceinte 3, symétrique par rapport à un plan vertical longitudinal médian P, comprend deux parois latérales 7, un fond inférieur 8 d'où partent des conduites 9 de collecte et d'évacuation d'effluents du traitement, et un dispositif d'étanchéité supérieur 10 qui s'étend sur toute la longueur du tunnel. Ce dispositif 10 comporte, de chaque côté du plan P, une barre horizontale 11 fixée au bord supérieur adjacent de la paroi 7 correspondante, et une brosse 12 qui part de cette barre en direction du plan P. Les poils des deux brosses 12 sont prévus sur une hauteur substantielle de plusieurs centimètres et s'interpénétrent dans la région du plan P. Dans l'enceinte 3 sont disposés un certain nombre de buses 13 de pulvérisation de la solution de traitement, par exemple au moyen d'air comprimé créant un effet de venturi . La dimension des gouttelettes créées par ces buses, de l'ordre de 0,05 mm, est choisie de manière à créer dans l'enceinte 3 un brouillard de la solution de traitement. Ce brouillard forme un aérosol qu'il serait dangereux de respirer, mais qui est empêché de sortir de l'enceinte 3 grâce aux dispositifs d'extraction 5 et 6 et au dispositif d'étanchéité 10, comme on l'expliquera plus loin.The enclosure 3, symmetrical with respect to a vertical longitudinal median plane P, comprises two side walls 7, a bottom bottom 8 from which flow pipes 9 for collecting and discharging treatment effluents, and a device for upper seal 10 which extends over the entire length of the tunnel. This device 10 comprises, on each side of the plane P, a horizontal bar 11 fixed to the adjacent upper edge of the corresponding wall 7, and a brush 12 which leaves this bar in the direction of the plane P. The bristles of the two brushes 12 are provided over a substantial height of several centimeters and interpenetrate in the region of the plane P. In the enclosure 3 are arranged a number of nozzles 13 for spraying the treatment solution, for example by means of compressed air creating an effect of venturi. The size of the droplets created by these nozzles, of the order of 0.05 mm, is chosen so as to create in the enclosure 3 a mist of the treatment solution. This mist forms an aerosol that would be dangerous to breathe, but which is prevented from leaving the enclosure 3 thanks to the extraction devices 5 and 6 and to the sealing device 10, as will be explained below.
Le convoyeur 4 comprend une bande sans fin dont le brin inférieur 13 court juste au-dessus du dispositif 10, dans le plan P. De cette bande pendent des câbles ou des tiges de suspension 14 qui se terminent par des crochets 15 pour les carcasses 2.The conveyor 4 comprises an endless band whose lower strand 13 runs just above the device 10, in the plane P. From this band hang cables or suspension rods 14 which end in hooks 15 for the carcasses 2 .
Le dispositif d'extraction 5 comprend, à chaque extrémité de l'enceinte 3 et de chaque côté du pian P, un collecteur 16 qui comporte une fente verticale d'entrée 17 tournée vers le pian P, et une conduite d'aspiration 18 munie d'un filtre-choc 19, associée au collecteur 16.The extraction device 5 comprises, at each end of the enclosure 3 and on each side of the plane P, a collector 16 which has a vertical inlet slot 17 facing the plane P, and a suction line 18 provided a shock filter 19, associated with the collector 16.
Le dispositif 5 comporte par ailleurs une soufflante 20 reliée par des conduites 21 aux quatre conduites 18 et refoulant dans une cheminée 22.The device 5 also comprises a blower 20 connected by pipes 21 to the four pipes 18 and discharging into a chimney 22.
Le dispositif d'extraction 6 comprend au moins une soufflante 23 reliée en amont, via des conduites 24 équipées d'un filtre-choc 25, à au moins un emplacement intermédiaire 26 de la longueur du tunnel, et refoulant dans une cheminée 27. Dans l'exemple représenté, il est prévu deux soufflantes 23, dont chacune est reliée à deux emplacements intermédiaires 26 d'une des parois latérales 7, au niveau de l'axe X-X.The extraction device 6 comprises at least one blower 23 connected upstream, via pipes 24 fitted with a shock filter 25, to at least one intermediate location 26 of the length of the tunnel, and discharging into a chimney 27. In the example shown, two blowers 23 are provided, each of which is connected to two intermediate locations 26 of one of the side walls 7, at the axis XX.
En service, les carcasses 2 suspendues pénètrent dans l'enceinte 3 par une extrémité, entre les fentes 17 des collecteurs 16, circulent tout le long de cette enceinte et en ressortent par l'autre extrémité (non visible sur laIn service, the suspended carcasses 2 penetrate into the enclosure 3 at one end, between the slots 17 of the collectors 16, circulate all along this enclosure and exit from it through the other end (not visible on the
Figure 2 mais analogues à la première) .Figure 2 but similar to the first).
Ce faisant, les câbles ou tiges 14 traversent le dispositif 10 dans le plan P, c'est-à-dire dans la région d'interpénétration des poils des deux brosses 12. Simultanément, les buses 13 créent dans l'enceinte 3 le brouillard de TSP, et les dispositifs 5 et 6 aspirent une partie de ce brouillard. Chaque flux aspiré est débarrassé de ses gouttelettes- par le filtre-choc 19 ou 25 correspondant, de sorte que les cheminées 22 et 27 rejettent des courants gazeux inoffensifs. Les soufflantes 20 et 23 sont à débit variable, et leurs débits d'aspiration sont réglés de façon à maintenir en permanence une légère dépression dans l'enceinte. Ceci garantit que le brouillard ne peut pas sortir de l'enceinte à travers ses ouvertures d'entrée et de sortie.In doing so, the cables or rods 14 pass through the device 10 in the plane P, that is to say in the region of interpenetration of the bristles of the two brushes 12. Simultaneously, the nozzles 13 create in the enclosure 3 the mist of TSP, and the devices 5 and 6 suck up part of this mist. Each suction stream is freed from its droplets by the corresponding shock filter 19 or 25, so that the chimneys 22 and 27 reject harmless gas streams. The blowers 20 and 23 are of variable flow, and their suction flow rates are adjusted so as to permanently maintain a slight depression in the enclosure. This ensures that fog cannot escape from the enclosure through its inlet and outlet openings.
De plus, le dispositif 10 assure une étanchéité généralement satisfaisante du sommet du tunnel. Toutefois, dans certaines applications, il peut s'avérer préférable, comme indiqué en trait mixte sur les Figures 1 et 2, d'ajouter un capotage supérieur 28 renfermant le dispositif 10 ainsi que le brin 13 du convoyeur, ce capotage étant mis sous une légère surpression au moyen d'une injection d'air auxiliaire 29. En variante, on peut remplacer le dispositif 5 par deux rideaux d'air prévus aux extrémités de l'enceinte 3, mais ceci semble moins efficace comme barrière contre les aérosols . In addition, the device 10 provides a generally satisfactory seal at the top of the tunnel. However, in certain applications, it may be preferable, as indicated in phantom in Figures 1 and 2, to add an upper cowling 28 enclosing the device 10 as well as the strand 13 of the conveyor, this cowling being placed under a slight overpressure by means of an auxiliary air injection 29. As a variant, the device 5 can be replaced by two air curtains provided at the ends of the enclosure 3, but this seems less effective as a barrier against aerosols.

Claims

REVENDICATIONS
1 - Tunnel de traitement en continu d'une succession d'articles (2) avec un agent qui produit des aérosols, du type comprenant une enceinte de traitement (3) ouverte à ses deux extrémités, un convoyeur (4) situé hors de l'enceinte et muni d'une succession d'organes (14) de support desdits articles qui pénètrent dans l'enceinte, et des dispositifs (13) de dispersion d dit agent dans l'enceinte, caractérisé en ce qu'il comprend : - à l'entrée et à la sortie de l'enceinte, des moyens (5) de création d'une circulation transversale de gaz; en au moins un emplacement de la longueur du tunnel, des moyens (5, 6) d'extraction de gaz hors de l'enceinte, munis de moyens (25) de retenue de la phase liquide entraînée par ces gaz, lesdits moyens d'extraction étant adaptés pour établir dans l'enceinte une légère dépression; et1 - Tunnel for continuous treatment of a succession of articles (2) with an agent which produces aerosols, of the type comprising a treatment chamber (3) open at its two ends, a conveyor (4) located outside the enclosure and provided with a succession of members (14) for supporting said articles which enter the enclosure, and devices (13) for dispersing said agent in the enclosure, characterized in that it comprises: - at the entrance and at the exit of the enclosure, means (5) for creating a transverse circulation of gas; in at least one location along the length of the tunnel, means (5, 6) for extracting gas from the enclosure, provided with means (25) for retaining the liquid phase entrained by these gases, said means for extraction being adapted to establish a slight depression in the enclosure; and
- au sommet de l'enceinte et tout le long de cεlle- ci, deux brosses (10) dont les poils (12) s'interpénétrent, les organes (14) de support desdits articles passant dans la zone d'interpénétration des poils.- At the top of the enclosure and all along it, two brushes (10) whose bristles (12) interpenetrate, the members (14) for supporting said articles passing through the interpenetration area of the bristles.
2 - Tunnel suivant la revendication 1, caractérisé en ce que lesdits moyens d'extraction (6) sont prévus au moins en un emplacement intermédiaire de la longueur de 1 ' enceinte (3) .2 - Tunnel according to claim 1, characterized in that said extraction means (6) are provided at least at an intermediate location of the length of one enclosure (3).
3 - Tunnel suivant la revendication 1 ou 2, caractérisé en ce que lesdits moyens d'extraction (5) sont prévus au moins à chaque extrémité de l'enceinte, où ils constituent lesdits moyens de création d'une circulation transversale de αaz . 4 - Tunnel suivant l'une quelconque des revendications 1 à 3, caractérisé en ce qu'il comprend un caisson (28) extérieur à l'enceinte et entourant les brosses (10) , et des moyens (29) de mise de ce caisson sous une légère surpression.3 - Tunnel according to claim 1 or 2, characterized in that said extraction means (5) are provided at least at each end of the enclosure, where they constitute said means for creating a transverse circulation of αaz. 4 - Tunnel according to any one of claims 1 to 3, characterized in that it comprises a box (28) outside the enclosure and surrounding the brushes (10), and means (29) for placing this box under slight overpressure.
5 - Tunnel suivant l'une quelconque des revendications 1 à 4, caractérisé en ce que les dispositifs de dispersion (13) sont des buses de pulvérisation adaptées pour former dans l'enceinte (3) un brouillard dudit agent. 6 - Tunnel suivant l'une quelconque des revendications 1 à 5, caractérisé en ce que les organes de support (14) sont des organes de suspension, le convoyeur (4) étant situé au-dessus de l'enceinte (3) .5 - Tunnel according to any one of claims 1 to 4, characterized in that the dispersion devices (13) are spray nozzles adapted to form in the enclosure (3) a mist of said agent. 6 - Tunnel according to any one of claims 1 to 5, characterized in that the support members (14) are suspension members, the conveyor (4) being located above the enclosure (3).
7 - Utilisation d'un tunnel suivant l'une quelconque des revendications 1 à 6 dans laquelle lesdits articles (2) sont des portions de chair comestible, notamment des carcasses d'oiseaux.7 - Use of a tunnel according to any one of claims 1 to 6 wherein said articles (2) are portions of edible flesh, in particular bird carcasses.
8 - Utilisation suivant la revendication 7, caractérisée en ce que ledit agent est une solution alcaline à base de phosphate alimentaire, notamment une solution de phosphate trisodique. 8 - Use according to claim 7, characterized in that said agent is an alkaline solution based on food phosphate, in particular a solution of trisodium phosphate.
PCT/FR2000/003072 1999-11-05 2000-11-03 Tunnel for continuous treatment of articles WO2001032026A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU12876/01A AU1287601A (en) 1999-11-05 2000-11-03 Tunnel for continuous treatment of articles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR99/13924 1999-11-05
FR9913924A FR2800645B1 (en) 1999-11-05 1999-11-05 CONTINUOUS ITEMS PROCESSING TUNNEL WITH AN AEROSOL-PRODUCING AGENT

Publications (1)

Publication Number Publication Date
WO2001032026A1 true WO2001032026A1 (en) 2001-05-10

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AU (1) AU1287601A (en)
FR (1) FR2800645B1 (en)
WO (1) WO2001032026A1 (en)

Citations (9)

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Publication number Priority date Publication date Assignee Title
US4207833A (en) * 1978-12-28 1980-06-17 Protectaire Systems Co. Protected conveyor system
US4338364A (en) * 1980-01-14 1982-07-06 Nordson Corporation Continuous coater
FR2518873A1 (en) * 1981-12-29 1983-07-01 Socopa France Washing suspended joints of meat - using brief hot and cold water jets to cleanse the surface of dirt and bacteria
US4946718A (en) * 1985-12-31 1990-08-07 Protectaire Systems Co. Air curtain housing for conveyor mechanism
EP0381609A1 (en) * 1989-01-31 1990-08-08 Slagteriernes Forskningsinstitut A method of scalding and an apparatus for carrying out the method
EP0584955A2 (en) * 1992-08-28 1994-03-02 Rhone-Poulenc Inc. Poultry washing apparatus and method
JPH09285770A (en) * 1996-04-22 1997-11-04 Central Motor Co Ltd Cleaner
JPH10271945A (en) * 1997-03-28 1998-10-13 Mayekawa Mfg Co Ltd Apparatus for processing low-temperature food
WO1999035916A2 (en) * 1998-01-20 1999-07-22 Novus International, Inc. An anti-microbial treatment system for and method of disinfecting animal carcasses

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4207833A (en) * 1978-12-28 1980-06-17 Protectaire Systems Co. Protected conveyor system
US4338364A (en) * 1980-01-14 1982-07-06 Nordson Corporation Continuous coater
FR2518873A1 (en) * 1981-12-29 1983-07-01 Socopa France Washing suspended joints of meat - using brief hot and cold water jets to cleanse the surface of dirt and bacteria
US4946718A (en) * 1985-12-31 1990-08-07 Protectaire Systems Co. Air curtain housing for conveyor mechanism
EP0381609A1 (en) * 1989-01-31 1990-08-08 Slagteriernes Forskningsinstitut A method of scalding and an apparatus for carrying out the method
EP0584955A2 (en) * 1992-08-28 1994-03-02 Rhone-Poulenc Inc. Poultry washing apparatus and method
JPH09285770A (en) * 1996-04-22 1997-11-04 Central Motor Co Ltd Cleaner
JPH10271945A (en) * 1997-03-28 1998-10-13 Mayekawa Mfg Co Ltd Apparatus for processing low-temperature food
WO1999035916A2 (en) * 1998-01-20 1999-07-22 Novus International, Inc. An anti-microbial treatment system for and method of disinfecting animal carcasses

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* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 03 27 February 1998 (1998-02-27) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 01 29 January 1999 (1999-01-29) *

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FR2800645B1 (en) 2002-08-30
AU1287601A (en) 2001-05-14
FR2800645A1 (en) 2001-05-11

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