WO2024052548A1 - Method for processing plant products and corresponding processing unit - Google Patents

Method for processing plant products and corresponding processing unit Download PDF

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Publication number
WO2024052548A1
WO2024052548A1 PCT/EP2023/074770 EP2023074770W WO2024052548A1 WO 2024052548 A1 WO2024052548 A1 WO 2024052548A1 EP 2023074770 W EP2023074770 W EP 2023074770W WO 2024052548 A1 WO2024052548 A1 WO 2024052548A1
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WO
WIPO (PCT)
Prior art keywords
treatment
cabin
treatment cabin
showering
stack
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Application number
PCT/EP2023/074770
Other languages
French (fr)
Inventor
Alberto Sardo
Stéfano Sardo
Original Assignee
Xeda International
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Publication date
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Publication of WO2024052548A1 publication Critical patent/WO2024052548A1/en

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Classifications

    • 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
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • 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
    • 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
    • A23L3/02—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating materials in packages which are progressively transported, continuously or stepwise, through the apparatus

Definitions

  • TITLE Process for treating plant products and corresponding processing unit
  • the present invention relates to a process for treating plant products.
  • plant products such as fruits and vegetables do not lose their organoleptic qualities and maintain an attractive appearance when placed on the market for rapid consumption.
  • plant products are commonly stored for relatively long periods before being placed on the market.
  • Phenomena likely to alter the appearance and taste of plant products include the proliferation of fungi and bacteria on their surface. This deterioration is even more rapid at the level of micro injuries and cuts appearing on the skin during storage or handling of plant products.
  • Another phenomenon likely to damage plant products is the phenomenon of scalding which manifests itself by blackening of the skin of the affected plant products.
  • thermotherapy which consists of the application of a hot treatment composition, for example water.
  • Other treatments consist, for example, of the use of treatment compositions comprising fungicides such as eugenol.
  • FR 2909525 A1 proposes a process and an installation adapted for the thermotherapy of plant products.
  • Plant products are packaged in boxes. They are treated in a large volume shower cabin. Means for showering the plant products contained in the boxes are provided in the cabin, the sprinkling being carried out by hot water possibly containing additives.
  • the invention aims to propose a method and a treatment installation which make it possible to reduce the heating power required, without compromising the quality of the treatment, while maintaining a high processing rate.
  • the invention according to a first aspect relates to a process for treating plant products packaged in perforated containers, the process comprising the following steps:
  • each pile having a height of between 1 and 2.5 m and a horizontal section of between 0.5 and 1.5 m 2 ;
  • a first treatment cabin comprising a belt of side walls, at least one of the side walls being deformable between an engagement configuration and a stack release configuration
  • a treatment composition having a temperature of between 30°C and 60°C, with a flow rate of between 160 and 300m 3 /m 2 /h and for a duration of between 10s and 10 minutes;
  • a second processing cabin comprising a belt of side walls, at least one of the side walls being deformable between an engagement configuration and a stack release configuration
  • a treatment composition having a temperature of between 30°C and 60°C, with a flow rate of between 50 and 500m 3 /m 2 /h and for a duration of between 10s and 10 minutes;
  • Each processing cabin has a limited volume, due to the fact that it is sized to load a stack of containers of modest volume.
  • the flow rate of treatment composition is significantly lower than in FR 2909525.
  • the power required for heating this treatment composition is therefore significantly less.
  • the liquid flow at each moment is moderate.
  • the flow rate of liquid composition per m 2 and per hour is higher than in FR 2909525.
  • the quality of the treatment is improved.
  • the volume of plant products treated in each cycle in a treatment cabin is lower than in FR 2909525.
  • the treatment capacity is only slightly impacted.
  • the treatment process may have one or more of the characteristics below, considered individually or in all technically possible combinations:
  • each pile includes between one and six containers per level
  • the flow rate of treatment composition in the showering step in the first treatment cabin and in the second treatment cabin is between 60 and 600 m 3 /h.
  • the invention relates to a unit for processing plant products packaged in perforated containers, the containers forming several stacks, each stack having a height of between 1 and 2.5 m and a horizontal section of between 0, 5 and 1.5 m 2 , the treatment unit comprising:
  • first treatment cabin of a size adapted to receive only one of the piles, the first treatment cabin comprising a belt of side walls, at least one of the side walls being deformable between an engagement configuration and a configuration for releasing the pile;
  • the second treatment cabin comprising a belt of side walls, at least one of the side walls being deformable between an engagement configuration and a configuration for releasing the pile;
  • the processing unit may also have one or more of the characteristics below, considered individually or in all technically possible combinations: - the shower circuit of the first treatment cabin and the shower circuit of the second treatment cabin are supplied by the same reserve of treatment composition;
  • the heating means heat the treatment composition contained in the reserve
  • the heating means have a power of between 500 and 1200 kW;
  • the flow rate of treatment composition in the shower circuit of the first treatment cabin and in the shower circuit of the second treatment cabin is between 50 and 500 m 3 /m 2 /h.
  • Figures 1 and 2 are perspective views of the treatment installation of the invention, considered from the front side and the rear side respectively;
  • Figure 3 is a schematic elevation representation of a stack of containers loaded with plant products.
  • the processing unit 1 shown in Figures 1 and 2 is intended to process plant products 3 packaged in perforated containers 5, the containers 5 forming several stacks 7 of the type shown in Figure 3.
  • Plant products are fruits or vegetables.
  • the fruits are for example apples, pears, or any other suitable type of fruit.
  • Vegetables are for example potatoes, or any other suitable type of vegetable.
  • the containers 5 are small, for example:
  • Type 1 length 1.2 m, width 1 m, height 0.65 m;
  • Type 2 length 1.2 m, width 1 m, height 0.35 m;
  • Type 3 length 0.45 m, width 0.30 m, height 0.30 m.
  • the containers are for example boxes, pallet boxes, or any other type of suitable container.
  • the bottom of the container in particular has holes not shown for the flow of the treatment composition.
  • Each pile 7 has a height of between 1 and 2.5 m and a horizontal section of between 0.5 and 1.5 m 2 .
  • Each pile 7 preferably has a height of between 1.5 and 2.5 m and a horizontal section of between 0.8 and 1.3 m 2 .
  • Each 7 stack has between one and six 5 containers per level.
  • Stack 7 has between three and ten levels.
  • pile 7 When the containers are larger, pile 7 has only one container 5 per level. It then has between three and five levels.
  • the stack 7 When the containers are smaller, the stack 7 typically has four or six containers 5 per level. It then has between six and ten levels.
  • stack 7 has one container 5 per level and three levels.
  • stack 7 has one container 5 per level and five levels.
  • stack 7 has six containers 5 per level and eight levels.
  • Each container 5 receives a mass of plant products of between 1 and 25 kg, preferably between 5 and 20 kg.
  • the processing unit 1 comprises a first processing cabin 9, of a size adapted to receive a stack 7 of the size indicated above, that is to say a stack 7 of a height between 1 and 2, 5 m and a horizontal section of between 0.5 and 1.5 m 2 .
  • the first treatment cabin 9 internally delimits a housing having a height and, perpendicular to the vertical direction, a section corresponding substantially to the height and the section of a single pile 7.
  • the housing is thus adapted to receive a pile 7 with a height of between 1 and 2.5 m and a horizontal section of between 0.5 and 1.5 m 2 .
  • the first cabin 9 comprises a belt of side walls 11, 13, at least one of the side walls 11 being deformable between an engagement configuration and a release configuration of the stack 7.
  • the processing unit 1 further comprises a second processing cabin 15, of a size adapted to receive only one of the batteries 7.
  • the second cabin 15 also comprises a belt of side walls 11, 13, at least one of the side walls 11 being deformable between an engagement configuration and a release configuration of the stack 7.
  • the first treatment cabin 9 and the second treatment cabin 15 are preferably identical to each other.
  • Two of the side walls, referenced 11, are deformable between the engagement configuration and the release configuration. They are opposite each other.
  • the other two side walls, referenced 13, are rigid and are typically made of metal sheet. They face each other.
  • One of the walls 13 is fixed and constitutes the rear of the treatment cabin.
  • the other wall 13 is a door allowing access to the interior of the treatment cabin and loading/unloading the pile 7. It constitutes the front of the treatment cabin. It is of any suitable type.
  • the walls 11 in the exemplary embodiment are inflatable walls.
  • Each of the two walls comprises a rigid exterior face and a flexible interior face, for example made of polyester.
  • this wall 11 and its passage into the engagement configuration are ensured by introducing a fluid such as compressed air between its interior and exterior faces, which causes the interior face to press against the stack of boxes 7 placed inside the accommodation.
  • the treatment unit 1 further comprises a circuit 17 for showering the pile 7 loaded in the first treatment cabin 9 by a treatment composition, and a circuit 19 for showering the pile 7 loaded in the second treatment cabin 15 by the same treatment composition.
  • the shower circuits 17 and 19 are supplied by the same reserve 21 of treatment composition.
  • Reserve 21 is a tank placed under the two treatment cabins 9 and 15.
  • the showering circuit 17 comprises a spray ramp 23 arranged in or on the cabin 9, above the stack 7. It also includes a conduit 25 fluidly connecting the ramp 23 to a collector 27 for distributing the treatment composition.
  • a solenoid valve 29 is inserted in the conduit 25, so as to authorize or prohibit the circulation of the treatment composition from the collector 27 to the distribution ramps 23.
  • the shower circuit 19 of the pile 7 loaded in the second treatment cabin 15 is of the same type. It also includes a spray boom 31 arranged in or on the cabin, above the stack 7 of containers 5, as well as a conduit 33 connecting the spray boom 31 to the collector 27.
  • a solenoid valve 35 inserted on the conduit 33, authorizes or prohibits the circulation of treatment composition from the collector 27 to the spray boom 31.
  • the treatment unit 1 comprises a circulation member 37 of the treatment composition, the suction of which is fluidly connected to the reserve 21, and the discharge of which is connected to the collector 27.
  • the circulation member 37 is a pump, typically a centrifugal pump.
  • Unit 1 also includes means 39 for heating the treatment composition.
  • the heating means 39 heat the treatment composition contained in the reserve 21.
  • the heating means 39 typically comprise a heat exchanger 41 immersed in the reserve 21.
  • a heat transfer fluid circulates in the heat exchanger.
  • the heat exchanger 41 is shown schematically in Figure 2. It is of any suitable type.
  • the heating means 39 comprise in this case a boiler 43 configured to heat the heat transfer fluid, and a circuit 45 fluidly connecting the boiler 43 to the heat exchanger 41.
  • the circuit 45 comprises a circulation member 47 such as a pump , ensuring the loop circulation of the heat transfer fluid between the boiler 43 and the heat exchanger 41.
  • Boiler 43 is an electric boiler, or a gas boiler, or any other type of boiler.
  • Unit 1 also includes a system 49 for deforming the deformable walls 11 of the first treatment cabin 9, and a system 51 for deforming the deformable walls 11 of the second treatment cabin 15.
  • the two systems are identical.
  • Each of the two systems allows the inflation of the walls 11. It comprises a blowing member 52 such as a fan, and conduits 53 connecting the discharge of the blowing member 52 to the volume delimited between the exterior face and the interior face of the wall 1 1.
  • a blowing member 52 such as a fan
  • conduits 53 connecting the discharge of the blowing member 52 to the volume delimited between the exterior face and the interior face of the wall 1 1.
  • Each of the two treatment cabins 9, 15 is delimited downwards by a bottom 55 placed immediately above the tank 21 (figure 1). This bottom 55 is perforated to allow the treatment composition to flow from the internal volume of the cabin into the reserve 21.
  • the stack 7 of containers is placed on the bottom 55.
  • the heating means 39 have a heating power of between 500 and 1200 kW, preferably between 600 and 1000 kW, and worth for example 800 kW.
  • the circulation member 37 is dimensioned to provide a flow rate of treatment composition of between 60 m 3 and 600 m 3 per hour.
  • the flow rate of treatment composition in the showering step is between 50 m 3 and 500 m 3 per m 2 and per hour, preferably between 100 and 300 m 3 per m 2 and per hour. This corresponds to a treatment composition flow rate of between 60 m 3 to 600 m 3 per hour, distributed over the horizontal section of the cabin, this section being for example approximately 1.2 m 2 .
  • the processing unit 1 also includes a controller 57, which controls, among other things, the showering circuits 17 and 19, the heating means 39 and the wall deformation systems 49 and 51.
  • the controller 57 controls in particular the circulation member 37, the solenoid valves 29 and 35, the boiler 43, the circulation member 47, and the blowing members 51.
  • the controller 57 regulates the temperature of the treatment composition within the range indicated above, and controls the flow rate of the treatment composition so that it is within the range indicated above.
  • This process is intended to be implemented using the processing unit 1 described above. Conversely, the processing unit 1 is specially designed to implement the treatment process.
  • the plant products packaged in the containers are as described above.
  • the containers are openwork containers of the type described above.
  • the treatment method comprises a step of stacking the containers 5 by forming several piles 7, each pile 7 having a height of between 1 and 2.5 m and a horizontal section of between 0.5 and 1.5 m 2 .
  • Each pile 7 preferably has a height of between 1.5 and 2.5 m and a horizontal section of between 0.8 and 1.3 m 2 .
  • Each 7 stack has between one and six 5 containers per level.
  • Stack 7 has between three and ten levels.
  • the batteries are as described above.
  • the treatment method also includes a step of loading only one of the batteries 7 into a first treatment cabin 9.
  • the first treatment cabin 9 comprises a belt of side walls 11, 13, at least one of the side walls being deformable between an engagement configuration and a release configuration of the stack 7.
  • the first treatment cabin 9 is of the type described above.
  • the side wall belt 1 1, 13 internally delimits a housing of section and height adapted to receive only a battery 7.
  • the method further comprises a step of setting the stack engagement configuration of the or each deformable side wall 11 of the first treatment cabin 9, followed by a step of showering the stack 7 loaded in the first processing cabin. treatment 9 with a treatment composition.
  • Putting the stack engagement configuration of the or each deformable side wall 11 is obtained by inflating the side wall 11 with a fluid such as air.
  • the air is delivered into the internal volume of the side wall 11 as described above by the circulation member 51 of the system 49 for deforming the deformable walls 11.
  • the interior face of the wall 11 is pressed against the stack 7 of containers. Furthermore, the stack 7 of containers rests towards the rear against the fixed wall 13, and towards the front against the wall 13 acting as a loading door.
  • the treatment composition is forced to circulate through the stack 7 of perforated containers.
  • the showering of the stack 7 is ensured by the showering circuit 17.
  • the treatment composition is projected by the spray ramp 23 above the stack 7. It flows through the different containers 5 by gravity from the spray ramp. sprinkler 23 up to grid 55.
  • the process includes a step of unloading the pile 7 out of the first cabin 9.
  • the loading door of the first cabin 9 is open, and an operator comes to extract the pile 7 out of the cabin.
  • the method includes a step of loading only one of the batteries 7 in a second treatment cabin 15.
  • the second treatment cabin 15 is as described above.
  • the method then comprises a step of setting the engagement configuration of the stack of the or each deformable wall 1 1 of the second treatment cabin 15, and a step of showering the stack 7 loaded into the second treatment cabin 15 by the treating composition.
  • the steps of setting the engagement and showering configuration are as described in relation to the first treatment cabin 9.
  • the method includes a step of unloading the pile 7 out of the second cabin 15.
  • This unloading step is carried out as described above in relation to the first cabin 9.
  • the unloading step is followed by a step of loading a new pile 7 into the second treatment cabin 15, and a new showering cycle inside the second treatment cabin 15 is then initiated.
  • the loading and unloading steps of the first treatment cabin 9 are carried out during the showering step in the second treatment cabin 15.
  • the loading and unloading steps of the second treatment cabin 15 are carried out during the showering step of the first treatment cabin 9.
  • the loading and unloading of the first treatment cabin 9 is carried out in masked time during showering in the second treatment cabin 15.
  • the loading and unloading of the second treatment cabin 15 is carried out in masked time during showering in the first treatment cabin 9.
  • the method of the invention therefore makes it possible to carry out continuous processing, without completely stopping the processing unit to load or unload the stacks of containers. While one of the cabins is stopped, the other cabin is in operation.
  • the treatment composition used for showering has a temperature between 30°C and 60°C.
  • it has a temperature of between 45°C and 55°C.
  • the reserve 21 of treatment composition is heated continuously. It is heated using heating means 39.
  • the flow rate of treatment composition in the showering step is between 50 and 500 m 3 per m 2 and per hour, preferably between 100 and 300 m 3 per m 2 and per hour.
  • the circulation member 37 is in operation. It sucks up the treatment composition from the reserve 21, and delivers it into the showering circuit 17 of the first cabin 9.
  • the solenoid valve 29 is open, while the solenoid valve 35 serving the shower circuit 19 of the second cabin 15 is closed.
  • the showering step has a duration typically between 10 seconds and 10 minutes, preferably between 1 and 5 minutes, and ideally worth between 2 and 3 minutes.
  • the treatment composition is of any suitable type.
  • the treatment composition is water not containing any particular active compound.
  • the treatment composition is water containing phosphonic acid (HPO3H2), also called phosphorous acid H3PO3.
  • the method and the processing unit described above may have multiple variants.
  • Each treatment cabin may have a single deformable side wall, or more than two deformable side walls, for example three or four deformable side walls.
  • the treatment unit could include more than two treatment cabins operating in masked time.
  • the treatment unit can thus include three independent treatment cabins, or more than three independent treatment cabins.
  • One or more of the treatment cabins are used for showering, while one or more other treatment cabins are loading/unloading.
  • All the cabins are arranged above the same reserve of treatment composition, each cabin being able to treat a single stack of containers.
  • the heating means may include an electric heating member, such as a resistor, directly immersed in the reserve of treating composition.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Catching Or Destruction (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)

Abstract

The method is intended for the processing of plant products packaged in perforated containers. It comprises the following steps: - stacking containers (5) to form several stacks (7), each stack (7) having a height of between 1 and 2.5 m and a horizontal section of between 0.5 and 1.5 m²; - loading just one of the stacks (7) into a first processing booth (9); - showering the stack (7) loaded into the first processing booth (9); - unloading the stack (7) from the first processing booth (9); - loading just one of the stacks (7) into a second processing booth (15); - showering the stack (7) loaded into the second processing booth (15); - unloading the stack (7) from the second processing booth (15); the steps of loading and unloading the first processing booth (9) being performed during the step of showering the second processing booth (15), and the steps of loading and unloading the second processing booth (15) being performed during the step of showering the first processing booth (9).

Description

TITRE : Procédé de traitement de produits végétaux et unité de traitement correspondante TITLE: Process for treating plant products and corresponding processing unit
La présente invention concerne un procédé de traitement de produits végétaux.The present invention relates to a process for treating plant products.
Il importe que des produits végétaux tels que des fruits et des légumes ne perdent pas leurs qualités organoleptiques et conservent un aspect engageant lors de leur mise sur le marché pour une consommation rapide. Or, après leur récolte, les produits végétaux sont couramment stockés pendant des périodes relativement longues avant d’être mis sur le marché. It is important that plant products such as fruits and vegetables do not lose their organoleptic qualities and maintain an attractive appearance when placed on the market for rapid consumption. However, after harvest, plant products are commonly stored for relatively long periods before being placed on the market.
Les phénomènes susceptibles d’altérer l’aspect et le goût des produits végétaux sont notamment la prolifération de champignons et de bactéries à leur surface. Ces détériorations sont encore plus rapides au niveau des micros blessures et des entailles apparaissant sur la peau au cours du stockage ou de la manipulation des produits végétaux. Un autre phénomène susceptible d’endommager les produits végétaux est le phénomène d’échaudure qui se manifeste par un noircissement de la peau des produits végétaux touchés. Phenomena likely to alter the appearance and taste of plant products include the proliferation of fungi and bacteria on their surface. This deterioration is even more rapid at the level of micro injuries and cuts appearing on the skin during storage or handling of plant products. Another phenomenon likely to damage plant products is the phenomenon of scalding which manifests itself by blackening of the skin of the affected plant products.
On connaît différents traitements des produits végétaux, dont notamment la thermothérapie qui consiste en l’application d’une composition traitante chaude, par exemple de l’eau. D’autres traitements consistent par exemple en l’utilisation de compositions traitantes comprenant des fongicides tels que l’eugénol. We know different treatments for plant products, including in particular thermotherapy which consists of the application of a hot treatment composition, for example water. Other treatments consist, for example, of the use of treatment compositions comprising fungicides such as eugenol.
FR 2909525 A1 propose un procédé et une installation adaptés pour la thermothérapie de produits végétaux. Les produits végétaux sont conditionnés dans des caisses. Ils sont traités dans une cabine de douchage de grand volume. Des moyens permettant de doucher les produits végétaux contenus dans les caisses sont prévus dans la cabine, l’aspersion étant réalisée par de l’eau chaude contenant éventuellement des additifs. FR 2909525 A1 proposes a process and an installation adapted for the thermotherapy of plant products. Plant products are packaged in boxes. They are treated in a large volume shower cabin. Means for showering the plant products contained in the boxes are provided in the cabin, the sprinkling being carried out by hot water possibly containing additives.
Il est possible d’obtenir une cadence de traitement élevée avec ce procédé, du fait du grand volume de produits végétaux qui peuvent être chargées à l’intérieur de la cabine. It is possible to obtain a high processing rate with this process, due to the large volume of plant products that can be loaded inside the cabin.
En revanche, la puissance de chauffage requise pour maintenir l’eau chaude est très importante dans une installation de ce type. On the other hand, the heating power required to maintain hot water is very high in an installation of this type.
Dans ce contexte, l’invention vise à proposer un procédé et une installation de traitement qui permettent de diminuer la puissance de chauffage requise, sans compromettre la qualité du traitement, tout en gardant une cadence de traitement élevée. À cette fin, l’invention selon un premier aspect porte sur un procédé de traitement de produits végétaux conditionnés dans des contenants ajourés, le procédé comprenant les étapes suivantes : In this context, the invention aims to propose a method and a treatment installation which make it possible to reduce the heating power required, without compromising the quality of the treatment, while maintaining a high processing rate. To this end, the invention according to a first aspect relates to a process for treating plant products packaged in perforated containers, the process comprising the following steps:
- empilage des contenants en formant plusieurs piles, chaque pile présentant une hauteur comprise entre 1 et 2,5 m et une section horizontale comprise entre 0,5 et 1 ,5 m2 ;- stacking the containers by forming several piles, each pile having a height of between 1 and 2.5 m and a horizontal section of between 0.5 and 1.5 m 2 ;
- chargement d’une seule des piles dans une première cabine de traitement comprenant une ceinture de parois latérales, au moins une des parois latérales étant déformable entre une configuration d’engagement et une configuration de libération la pile ; - loading of only one of the stacks in a first treatment cabin comprising a belt of side walls, at least one of the side walls being deformable between an engagement configuration and a stack release configuration;
- mise en configuration d’engagement de la pile de la ou chaque paroi latérale déformable de la première cabine de traitement; - setting the stack engagement configuration of the or each deformable side wall of the first treatment cabin;
- douchage de la pile chargée dans la première cabine de traitement par une composition traitante ayant une température comprise entre 30°C et 60°C, avec un débit compris entre 160 et 300m3/m2/h et pendant une durée comprise entre 10s et 10mn ;- showering the pile loaded in the first treatment cabin with a treatment composition having a temperature of between 30°C and 60°C, with a flow rate of between 160 and 300m 3 /m 2 /h and for a duration of between 10s and 10 minutes;
- déchargement de la pile hors de la première cabine de traitement;- unloading the pile out of the first treatment cabin;
- chargement d’une seule des piles dans une seconde cabine de traitement comprenant une ceinture de parois latérales, au moins une des parois latérales étant déformable entre une configuration d’engagement et une configuration de libération la pile ; - loading of only one of the stacks in a second processing cabin comprising a belt of side walls, at least one of the side walls being deformable between an engagement configuration and a stack release configuration;
- mise en configuration d’engagement de la pile de la ou chaque paroi latérale déformable de la seconde cabine de traitement; - setting the stack engagement configuration of the or each deformable side wall of the second treatment cabin;
- douchage de la pile chargée dans la seconde cabine de traitement par une composition traitante ayant une température comprise entre 30°C et 60°C, avec un débit compris entre 50 et 500m3/m2/h et pendant une durée comprise entre 10s et 10mn ;- showering the pile loaded in the second treatment cabin with a treatment composition having a temperature of between 30°C and 60°C, with a flow rate of between 50 and 500m 3 /m 2 /h and for a duration of between 10s and 10 minutes;
- déchargement de la pile hors de la seconde cabine de traitement ; les étapes de chargement et déchargement de la première cabine de traitement étant effectuées pendant l’étape de douchage de la seconde cabine de traitement, et les étapes de chargement et déchargement de la seconde cabine de traitement étant effectuées pendant l’étape de douchage de la première cabine de traitement.. - unloading the pile out of the second treatment cabin; the steps of loading and unloading the first treatment cabin being carried out during the step of showering the second treatment cabin, and the steps of loading and unloading the second treatment cabin being carried out during the step of showering the first treatment cabin..
Chaque cabine de traitement est d’un volume limité, du fait qu’elle est dimensionnée pour charger une pile de contenants de volume modeste. De ce fait, le débit de composition traitante est nettement plus faible que dans FR 2909525. La puissance nécessaire pour le chauffage de cette composition traitante est donc nettement moindre. Each processing cabin has a limited volume, due to the fact that it is sized to load a stack of containers of modest volume. As a result, the flow rate of treatment composition is significantly lower than in FR 2909525. The power required for heating this treatment composition is therefore significantly less.
Comme les deux cabines de traitement sont utilisées alternativement, en temps masqué, le débit de liquide à chaque instant est modéré. En revanche, le débit de composition liquide par m2 et par heure est plus élevé que dans FR 2909525. La qualité du traitement est améliorée. Le volume de produits végétaux traité à chaque cycle dans une cabine de traitement est plus faible que dans FR 2909525. En revanche, du fait que les deux cabines de traitement travaillent en temps masqué, la capacité de traitement n’est que faiblement impactée. As the two treatment cabins are used alternately, in masked time, the liquid flow at each moment is moderate. On the other hand, the flow rate of liquid composition per m 2 and per hour is higher than in FR 2909525. The quality of the treatment is improved. The volume of plant products treated in each cycle in a treatment cabin is lower than in FR 2909525. On the other hand, due to the fact that the two treatment cabins work in masked time, the treatment capacity is only slightly impacted.
Le procédé de traitement peut présenter une ou plusieurs des caractéristiques ci- dessous, considérées individuellement ou selon toutes les combinaisons techniquement possibles : The treatment process may have one or more of the characteristics below, considered individually or in all technically possible combinations:
- chaque pile comprend entre un et six contenant par niveau ; - each pile includes between one and six containers per level;
- la première cabine de traitement et la seconde cabine de traitement sont alimentées à partir d’une même réserve de composition traitante ; - the first treatment cabin and the second treatment cabin are supplied from the same reserve of treatment composition;
- la réserve de composition traitante est chauffée en continu ; - the reserve of treating composition is heated continuously;
- le débit de composition traitante à l’étape de douchage dans la première cabine de traitement et dans la seconde cabine de traitement est compris entre 60 et 600 m3/h. - the flow rate of treatment composition in the showering step in the first treatment cabin and in the second treatment cabin is between 60 and 600 m 3 /h.
Selon un second aspect, l’invention porte sur une unité de traitement de produits végétaux conditionnés dans des contenants ajourés, les contenants formant plusieurs piles, chaque pile présentant une hauteur comprise entre 1 et 2,5 m et une section horizontale comprise entre 0,5 et 1 ,5 m2, l’unité de traitement comprenant : According to a second aspect, the invention relates to a unit for processing plant products packaged in perforated containers, the containers forming several stacks, each stack having a height of between 1 and 2.5 m and a horizontal section of between 0, 5 and 1.5 m 2 , the treatment unit comprising:
- une première cabine de traitement de taille adaptée pour recevoir une seule des piles, la première cabine de traitement comprenant une ceinture de parois latérales, au moins une des parois latérales étant déformable entre une configuration d’engagement et une configuration de libération la pile ; - a first treatment cabin of a size adapted to receive only one of the piles, the first treatment cabin comprising a belt of side walls, at least one of the side walls being deformable between an engagement configuration and a configuration for releasing the pile;
- une seconde cabine de traitement de taille adaptée pour recevoir une seule des piles, la seconde cabine de traitement comprenant une ceinture de parois latérales, au moins une des parois latérales étant déformable entre une configuration d’engagement et une configuration de libération la pile ; - a second treatment cabin of a size adapted to receive only one of the piles, the second treatment cabin comprising a belt of side walls, at least one of the side walls being deformable between an engagement configuration and a configuration for releasing the pile;
- un circuit de douchage de la pile chargée dans la première cabine de traitement par une composition traitante ; - a circuit for showering the pile loaded in the first treatment cabin with a treatment composition;
- un circuit de douchage de la pile chargée dans la seconde cabine de traitement par la composition traitante ; - a circuit for showering the pile loaded in the second treatment cabin with the treatment composition;
- des moyens de chauffage de la composition traitante, et - means of heating the treatment composition, and
- un système de déformation des parois déformables de la première cabine de traitement et un système de déformation des parois déformables de la seconde cabine de traitement. - a system for deforming the deformable walls of the first treatment cabin and a system for deforming the deformable walls of the second treatment cabin.
L’unité de traitement peut en outre présenter une ou plusieurs des caractéristiques ci-dessous, considérées individuellement ou selon toutes les combinaisons techniquement possibles : - le circuit de douchage de la première cabine de traitement et le circuit de douchage de la seconde cabine de traitement sont alimentés par une même réserve de composition traitante ; The processing unit may also have one or more of the characteristics below, considered individually or in all technically possible combinations: - the shower circuit of the first treatment cabin and the shower circuit of the second treatment cabin are supplied by the same reserve of treatment composition;
- les moyens de chauffage chauffent la composition traitante contenue dans la réserve ;- the heating means heat the treatment composition contained in the reserve;
- les moyens de chauffage présentent une puissance comprise entre 500 et 1200 kW ;- the heating means have a power of between 500 and 1200 kW;
- le débit de composition traitante dans le circuit de douchage de la première cabine de traitement et dans le circuit de douchage de la seconde cabine de traitement est compris entre 50 et 500 m3/m2/h.. - the flow rate of treatment composition in the shower circuit of the first treatment cabin and in the shower circuit of the second treatment cabin is between 50 and 500 m 3 /m 2 /h.
D’autres caractéristiques et avantages de l’invention ressortiront de la description détaillée qui en donnée ci-dessous, à titre indicatif et nullement limitatif, en référence aux figures annexées, parmi lesquelles : Other characteristics and advantages of the invention will emerge from the detailed description given below, for information only and in no way limiting, with reference to the appended figures, among which:
Les figures 1 et 2 sont des vues en perspective de l’installation de traitement de l’invention, considérée du côté avant et du côté arrière respectivement ; etFigures 1 and 2 are perspective views of the treatment installation of the invention, considered from the front side and the rear side respectively; And
La figure 3 est une représentation schématique en élévation d’une pile de contenants chargés de produits végétaux. Figure 3 is a schematic elevation representation of a stack of containers loaded with plant products.
L’unité de traitement 1 représentée sur les figures 1 et 2 est prévue pour traiter des produits végétaux 3 conditionnés dans des contenants ajourés 5, les contenants 5 formant plusieurs piles 7 du type représenté sur la figure 3. The processing unit 1 shown in Figures 1 and 2 is intended to process plant products 3 packaged in perforated containers 5, the containers 5 forming several stacks 7 of the type shown in Figure 3.
Les produits végétaux sont des fruits ou des légumes. Plant products are fruits or vegetables.
Les fruits sont par exemple des pommes, des poires, ou tout autre type de fruit adapté. The fruits are for example apples, pears, or any other suitable type of fruit.
Les légumes sont par exemple des pommes de terre, ou tout autre type de légume adapté. Vegetables are for example potatoes, or any other suitable type of vegetable.
Les contenants 5 sont de petites dimensions, par exemple : The containers 5 are small, for example:
Type 1 : longueur 1 ,2 m, largeur 1 m, hauteur 0,65 m ; Type 1: length 1.2 m, width 1 m, height 0.65 m;
Type 2 : longueur 1 ,2 m, largeur 1 m, hauteur 0,35 m ; Type 2: length 1.2 m, width 1 m, height 0.35 m;
Type 3 : longueur 0.45 m, largeur 0,30 m, hauteur 0,30 m . Type 3: length 0.45 m, width 0.30 m, height 0.30 m.
Les contenants sont par exemple des caisses, des caisses palette, ou tout autre type de contenant adapté. The containers are for example boxes, pallet boxes, or any other type of suitable container.
Ils sont ajourés au sens où la composition traitante projetée sur les produits végétaux conditionnés dans le contenant peut s’écouler à travers le contenant. Le fond du contenant en particulier comporte des trous non représentés pour l’écoulement de la composition traitante. They are perforated in the sense that the treatment composition projected onto the plant products packaged in the container can flow through the container. The bottom of the container in particular has holes not shown for the flow of the treatment composition.
Chaque pile 7 présente une hauteur comprise entre 1 et 2,5 m et une section horizontale comprise entre 0,5 et 1 ,5 m2. Chaque pile 7 présente de préférence une hauteur comprise entre 1 ,5 et 2,5 m et une section horizontale comprise entre 0,8 et 1 ,3 m2. Each pile 7 has a height of between 1 and 2.5 m and a horizontal section of between 0.5 and 1.5 m 2 . Each pile 7 preferably has a height of between 1.5 and 2.5 m and a horizontal section of between 0.8 and 1.3 m 2 .
Chaque pile 7 comporte entre un et six contenants 5 par niveau. Each 7 stack has between one and six 5 containers per level.
La pile 7 comporte entre trois et dix niveaux. Stack 7 has between three and ten levels.
Quand les contenants sont de plus grande taille, la pile 7 comporte un seul contenant 5 par niveau. Elle comporte alors entre trois et cinq niveaux. When the containers are larger, pile 7 has only one container 5 per level. It then has between three and five levels.
Quand les contenants sont de plus petite taille, la pile 7 comporte typiquement quatre ou six contenants 5 par niveau. Elle comporte alors entre six et dix niveaux. When the containers are smaller, the stack 7 typically has four or six containers 5 per level. It then has between six and ten levels.
Pour les contenants de type 1 , la pile 7 comporte un contenant 5 par niveau et trois niveaux. For type 1 containers, stack 7 has one container 5 per level and three levels.
Pour les contenants de type 2, la pile 7 comporte un contenant 5 par niveau et cinq niveaux. For type 2 containers, stack 7 has one container 5 per level and five levels.
Pour les contenants de type 1 , la pile 7 comporte six contenants 5 par niveau et huit niveaux. For type 1 containers, stack 7 has six containers 5 per level and eight levels.
Chaque contenant 5 reçoit une masse de produits végétaux compris entre 1 et 25 kg, de préférence comprise entre 5 et 20 kg. Each container 5 receives a mass of plant products of between 1 and 25 kg, preferably between 5 and 20 kg.
L’unité de traitement 1 comprend une première cabine de traitement 9, de taille adaptée pour recevoir une pile 7 de la taille indiquée ci-dessus, c’est-à-dire une pile 7 d’une hauteur comprise entre 1 et 2,5 m et une section horizontale comprise entre 0,5 et 1 ,5 m2. The processing unit 1 comprises a first processing cabin 9, of a size adapted to receive a stack 7 of the size indicated above, that is to say a stack 7 of a height between 1 and 2, 5 m and a horizontal section of between 0.5 and 1.5 m 2 .
La première cabine de traitement 9 délimite intérieurement un logement présentant une hauteur et, perpendiculairement à la direction verticale, une section correspondant sensiblement à la hauteur et à la section d’une pile 7 unique. The first treatment cabin 9 internally delimits a housing having a height and, perpendicular to the vertical direction, a section corresponding substantially to the height and the section of a single pile 7.
Le logement est ainsi adapté pour recevoir une pile 7 d’une hauteur comprise entre 1 et 2,5 m et une section horizontale comprise entre 0,5 et 1 ,5 m2. The housing is thus adapted to receive a pile 7 with a height of between 1 and 2.5 m and a horizontal section of between 0.5 and 1.5 m 2 .
La première cabine 9 comprend une ceinture de parois latérales 11 , 13, au moins une des parois latérales 11 étant déformable entre une configuration d’engagement et une configuration de libération de la pile 7. The first cabin 9 comprises a belt of side walls 11, 13, at least one of the side walls 11 being deformable between an engagement configuration and a release configuration of the stack 7.
L’unité de traitement 1 comporte en outre une seconde cabine de traitement 15, de taille adaptée pour recevoir une seule des piles 7. The processing unit 1 further comprises a second processing cabin 15, of a size adapted to receive only one of the batteries 7.
La seconde cabine 15 comprend elle aussi une ceinture de parois latérales 11 , 13, au moins une des parois latérales 11 étant déformable entre une configuration d’engagement et une configuration de libération de la pile 7. The second cabin 15 also comprises a belt of side walls 11, 13, at least one of the side walls 11 being deformable between an engagement configuration and a release configuration of the stack 7.
La première cabine de traitement 9 et la seconde cabine de traitement 15 sont de préférence identiques l’une à l’autre. The first treatment cabin 9 and the second treatment cabin 15 are preferably identical to each other.
Deux des parois latérales, référencées 11 , sont déformables entre la configuration d’engagement et la configuration de libération. Elles sont en vis-à-vis l’une de l’autre, Les deux autres parois latérales, référencées 13, sont rigides et sont typiquement composées de tôle métallique. Elles en vis-à-vis l’une de l’autre. Two of the side walls, referenced 11, are deformable between the engagement configuration and the release configuration. They are opposite each other, The other two side walls, referenced 13, are rigid and are typically made of metal sheet. They face each other.
L’une des parois 13 est fixe et constitue l’arrière de la cabine de traitement. One of the walls 13 is fixed and constitutes the rear of the treatment cabin.
L’autre paroi 13 est une porte permettant d’accéder à l’intérieur de la cabine de traitement et de charger/décharger la pile 7. Elle constitue l’avant de la cabine de traitement. Elle est de tout type adapté. The other wall 13 is a door allowing access to the interior of the treatment cabin and loading/unloading the pile 7. It constitutes the front of the treatment cabin. It is of any suitable type.
Les parois 11 dans l’exemple de réalisation sont des parois gonflables. Chacune des deux parois comprend une face extérieure rigide et une face intérieure souple, par exemple réalisée en polyester. The walls 11 in the exemplary embodiment are inflatable walls. Each of the two walls comprises a rigid exterior face and a flexible interior face, for example made of polyester.
Le gonflement de cette paroi 11 et son passage en configuration d’engagement sont assurés en introduisant un fluide tel que de l’air comprimé entre ses faces intérieure et extérieure, ce qui conduit la face intérieure à venir se plaquer contre la pile de caisses 7 disposée à l’intérieur du logement. The inflation of this wall 11 and its passage into the engagement configuration are ensured by introducing a fluid such as compressed air between its interior and exterior faces, which causes the interior face to press against the stack of boxes 7 placed inside the accommodation.
L’unité de traitement 1 comprend encore un circuit 17 de douchage de la pile 7 chargée dans la première cabine de traitement 9 par une composition traitante, et un circuit 19 de douchage de la pile 7 chargée dans la seconde cabine de traitement 15 par la même composition traitante. The treatment unit 1 further comprises a circuit 17 for showering the pile 7 loaded in the first treatment cabin 9 by a treatment composition, and a circuit 19 for showering the pile 7 loaded in the second treatment cabin 15 by the same treatment composition.
Les circuits de douchage 17 et 19 sont alimentés par une même réserve 21 de composition traitante. The shower circuits 17 and 19 are supplied by the same reserve 21 of treatment composition.
La réserve 21 est un bac disposé sous les deux cabines de traitement 9 et 15.Reserve 21 is a tank placed under the two treatment cabins 9 and 15.
Le circuit de douchage 17 comprend une rampe d’aspersion 23 agencée dans ou sur la cabine 9, au-dessus de la pile 7. Il comprend également un conduit 25 raccordant fluidiquement la rampe 23 à un collecteur 27 de distribution de la composition traitante. The showering circuit 17 comprises a spray ramp 23 arranged in or on the cabin 9, above the stack 7. It also includes a conduit 25 fluidly connecting the ramp 23 to a collector 27 for distributing the treatment composition.
Une électrovanne 29 est intercalée dans le conduit 25, de manière à autoriser ou interdire la circulation de la composition traitante depuis le collecteur 27 jusqu’aux rampes de distribution 23. A solenoid valve 29 is inserted in the conduit 25, so as to authorize or prohibit the circulation of the treatment composition from the collector 27 to the distribution ramps 23.
Le circuit de douchage 19 de la pile 7 chargée dans la seconde cabine de traitement 15 est du même type. Il comprend lui aussi une rampe d’aspersion 31 agencée dans ou sur la cabine, au-dessus de la pile 7 de contenants 5, ainsi qu’un conduit 33 raccordant la rampe d’aspersion 31 au collecteur 27. The shower circuit 19 of the pile 7 loaded in the second treatment cabin 15 is of the same type. It also includes a spray boom 31 arranged in or on the cabin, above the stack 7 of containers 5, as well as a conduit 33 connecting the spray boom 31 to the collector 27.
Une électrovanne 35, intercalée sur le conduit 33, autorise ou interdit la circulation de composition traitante depuis le collecteur 27 jusqu’à la rampe d’aspersion 31 . A solenoid valve 35, inserted on the conduit 33, authorizes or prohibits the circulation of treatment composition from the collector 27 to the spray boom 31.
Comme visible sur la figure 2, l’unité de traitement 1 comprend un organe de circulation 37 de la composition traitante, dont l’aspiration est raccordée fluidiquement à la réserve 21 , et dont le refoulement est raccordé au collecteur 27. As visible in Figure 2, the treatment unit 1 comprises a circulation member 37 of the treatment composition, the suction of which is fluidly connected to the reserve 21, and the discharge of which is connected to the collector 27.
L’organe de circulation 37 est une pompe, typiquement une pompe centrifuge. L’unité 1 comporte encore des moyens 39 de chauffage de la composition traitante. Dans l’exemple représenté, les moyens de chauffage 39 chauffent la composition traitante contenue dans la réserve 21 . The circulation member 37 is a pump, typically a centrifugal pump. Unit 1 also includes means 39 for heating the treatment composition. In the example shown, the heating means 39 heat the treatment composition contained in the reserve 21.
Pour ce faire, les moyens de chauffage 39 comportent typiquement un échangeur de chaleur 41 immergé dans la réserve 21. Un fluide caloporteur circule dans l’échangeur de chaleur. To do this, the heating means 39 typically comprise a heat exchanger 41 immersed in the reserve 21. A heat transfer fluid circulates in the heat exchanger.
L’échangeur de chaleur 41 est représenté de manière schématique sur la figure 2. Il est de tout type adapté. The heat exchanger 41 is shown schematically in Figure 2. It is of any suitable type.
Les moyens de chauffage 39 comprennent dans ce cas une chaudière 43 configurée pour chauffer le fluide caloporteur, et un circuit 45 raccordant fluidiquement la chaudière 43 à l’échangeur de chaleur 41. Le circuit 45 comporte un organe de circulation 47 tel qu’une pompe, assurant la circulation en boucle du fluide caloporteur entre la chaudière 43 et l’échangeur de chaleur 41 . The heating means 39 comprise in this case a boiler 43 configured to heat the heat transfer fluid, and a circuit 45 fluidly connecting the boiler 43 to the heat exchanger 41. The circuit 45 comprises a circulation member 47 such as a pump , ensuring the loop circulation of the heat transfer fluid between the boiler 43 and the heat exchanger 41.
La chaudière 43 est une chaudière électrique, ou une chaudière à gaz, ou tout autre type de chaudière. Boiler 43 is an electric boiler, or a gas boiler, or any other type of boiler.
L’unité 1 comporte encore un système 49 de déformation des parois déformables 11 de la première cabine de traitement 9, et un système 51 de déformation des parois déformables 11 de la seconde cabine de traitement 15. Unit 1 also includes a system 49 for deforming the deformable walls 11 of the first treatment cabin 9, and a system 51 for deforming the deformable walls 11 of the second treatment cabin 15.
Les deux systèmes sont identiques. The two systems are identical.
Chacun des deux systèmes permet le gonflage des parois 11. Il comprend un organe de soufflage 52 tel qu’un ventilateur, et des conduits 53 raccordant le refoulement de l’organe de soufflage 52 au volume délimité entre la face extérieure et la face intérieure de la paroi 1 1 . Each of the two systems allows the inflation of the walls 11. It comprises a blowing member 52 such as a fan, and conduits 53 connecting the discharge of the blowing member 52 to the volume delimited between the exterior face and the interior face of the wall 1 1.
Chacune des deux cabines de traitement 9, 15 est délimitée vers le bas par un fond 55 placé immédiatement au-dessus du bac 21 (figure 1 ). Ce fond 55 est ajouré pour permettre le ruissellement de la composition traitante depuis le volume interne de la cabine dans la réserve 21 . La pile 7 de contenants est posée sur le fond 55. Each of the two treatment cabins 9, 15 is delimited downwards by a bottom 55 placed immediately above the tank 21 (figure 1). This bottom 55 is perforated to allow the treatment composition to flow from the internal volume of the cabin into the reserve 21. The stack 7 of containers is placed on the bottom 55.
Les moyens de chauffage 39 ont une puissance de chauffage comprise entre 500 et 1200 kW, de préférence compris entre 600 et 1000 kW, et valant par exemple 800 kW. The heating means 39 have a heating power of between 500 and 1200 kW, preferably between 600 and 1000 kW, and worth for example 800 kW.
L’organe de circulation 37 est dimensionné pour fournir un débit de composition traitante compris entre 60 m3 et 600 m3 par heure. The circulation member 37 is dimensioned to provide a flow rate of treatment composition of between 60 m 3 and 600 m 3 per hour.
Dans chacune des deux cabines de traitement 9, 15, le débit de composition traitante à l’étape de douchage est compris entre 50 m3 et 500 m3 par m2 et par heure, de préférence entre 100 et 300 m3 par m2 et par heure. Ceci correspond à un débit de composition traitante compris entre 60 m3 à 600 m3 par heure, réparti sur la section horizontale de la cabine, cette section étant par exemple d’environ 1 ,2 m2. In each of the two treatment cabins 9, 15, the flow rate of treatment composition in the showering step is between 50 m 3 and 500 m 3 per m 2 and per hour, preferably between 100 and 300 m 3 per m 2 and per hour. This corresponds to a treatment composition flow rate of between 60 m 3 to 600 m 3 per hour, distributed over the horizontal section of the cabin, this section being for example approximately 1.2 m 2 .
L’unité de traitement 1 comporte encore un contrôleur 57, qui contrôle entre autres les circuits de douchage 17 et 19, les moyens de chauffage 39 et les systèmes de déformation des parois 49 et 51 . The processing unit 1 also includes a controller 57, which controls, among other things, the showering circuits 17 and 19, the heating means 39 and the wall deformation systems 49 and 51.
Le contrôleur 57 contrôle notamment l’organe de circulation 37, les électrovannes 29 et 35, la chaudière 43, l’organe de circulation 47, et les organes de soufflage 51. The controller 57 controls in particular the circulation member 37, the solenoid valves 29 and 35, the boiler 43, the circulation member 47, and the blowing members 51.
Le contrôleur 57 régule la température de la composition traitante dans la fourchette indiquée ci-dessus, et pilote le débit de composition traitante pour que celui-ci soit dans la fourchette indiquée ci-dessus. The controller 57 regulates the temperature of the treatment composition within the range indicated above, and controls the flow rate of the treatment composition so that it is within the range indicated above.
Un procédé de traitement de produits végétaux conditionnés dans des contenants ajourés va maintenant être décrit. A process for treating plant products packaged in perforated containers will now be described.
Ce procédé est prévu pour être mis en œuvre à l’aide de l’unité de traitement 1 décrite ci-dessus. Inversement, l’unité de traitement 1 est spécialement conçue pour mettre en œuvre le procédé de traitement. This process is intended to be implemented using the processing unit 1 described above. Conversely, the processing unit 1 is specially designed to implement the treatment process.
Les produits végétaux conditionnés dans les contenants sont comme décrit ci- dessus. The plant products packaged in the containers are as described above.
Les contenants sont des contenants ajourés du type décrit ci-dessus. The containers are openwork containers of the type described above.
Le procédé de traitement comprend une étape d’empilage des contenants 5 en formant plusieurs piles 7, chaque pile 7 présentant d’une hauteur comprise entre 1 et 2,5 m et une section horizontale comprise entre 0,5 et 1 ,5 m2. The treatment method comprises a step of stacking the containers 5 by forming several piles 7, each pile 7 having a height of between 1 and 2.5 m and a horizontal section of between 0.5 and 1.5 m 2 .
Chaque pile 7 présente de préférence une hauteur comprise entre 1 ,5 et 2,5 m et une section horizontale comprise entre 0,8 et 1 ,3 m2. Each pile 7 preferably has a height of between 1.5 and 2.5 m and a horizontal section of between 0.8 and 1.3 m 2 .
Chaque pile 7 comporte entre un et six contenants 5 par niveau. Each 7 stack has between one and six 5 containers per level.
La pile 7 comporte entre trois et dix niveaux. Stack 7 has between three and ten levels.
Les piles sont comme décrit ci-dessus. The batteries are as described above.
Le procédé de traitement comprend par ailleurs une étape de chargement d’une seule des piles 7 dans une première cabine de traitement 9. The treatment method also includes a step of loading only one of the batteries 7 into a first treatment cabin 9.
La première cabine de traitement 9 comprend une ceinture de parois latérales 11 , 13, au moins une des parois latérales étant déformable entre une configuration d’engagement et une configuration de libération de la pile 7. The first treatment cabin 9 comprises a belt of side walls 11, 13, at least one of the side walls being deformable between an engagement configuration and a release configuration of the stack 7.
La première cabine de traitement 9 est du type décrit ci-dessus. The first treatment cabin 9 is of the type described above.
La ceinture de parois latérales 1 1 , 13 délimite intérieurement un logement de section et de hauteur adaptée pour recevoir seulement une pile 7. Le procédé comporte en outre une étape de mise en configuration d’engagement de la pile de la ou chaque paroi latérale déformable 11 de la première cabine de traitement 9, suivi d’une étape de douchage de la pile 7 chargée dans la première cabine de traitement 9 par une composition traitante. The side wall belt 1 1, 13 internally delimits a housing of section and height adapted to receive only a battery 7. The method further comprises a step of setting the stack engagement configuration of the or each deformable side wall 11 of the first treatment cabin 9, followed by a step of showering the stack 7 loaded in the first processing cabin. treatment 9 with a treatment composition.
La mise en configuration d’engagement de la pile de la ou chaque paroi latérale déformable 11 est obtenue en gonflant la paroi latérale 1 1 avec un fluide tel que de l’air. Putting the stack engagement configuration of the or each deformable side wall 11 is obtained by inflating the side wall 11 with a fluid such as air.
L’air est refoulé dans le volume interne de la paroi latérale 11 comme décrit plus haut par l’organe de circulation 51 du système 49 de déformation des parois déformables 11. The air is delivered into the internal volume of the side wall 11 as described above by the circulation member 51 of the system 49 for deforming the deformable walls 11.
Dans la configuration d’engagement, la face intérieure de la paroi 1 1 est plaquée contre la pile 7 de contenants. Par ailleurs, la pile 7 de contenants est en appui vers l’arrière contre la paroi 13 fixe, et vers l’avant contre la paroi 13 faisant office de porte de chargement. In the engagement configuration, the interior face of the wall 11 is pressed against the stack 7 of containers. Furthermore, the stack 7 of containers rests towards the rear against the fixed wall 13, and towards the front against the wall 13 acting as a loading door.
Ainsi, la composition traitante est forcée de circuler à travers la pile 7 de contenants ajourés. Thus, the treatment composition is forced to circulate through the stack 7 of perforated containers.
Le douchage de la pile 7 est assuré par le circuit de douchage 17. La composition traitante est projetée par la rampe d’aspersion 23 au-dessus de la pile 7. Elle ruisselle à travers les différents contenants 5 par gravité depuis la rampe d’aspersion 23 jusqu’à la grille 55. The showering of the stack 7 is ensured by the showering circuit 17. The treatment composition is projected by the spray ramp 23 above the stack 7. It flows through the different containers 5 by gravity from the spray ramp. sprinkler 23 up to grid 55.
À l’issue de l’étape de douchage, le procédé comporte une étape de déchargement de la pile 7 hors de la première cabine 9. At the end of the showering step, the process includes a step of unloading the pile 7 out of the first cabin 9.
Pour ce faire, la porte de chargement de la première cabine 9 est ouverte, et un opérateur vient extraire la pile 7 hors de la cabine. To do this, the loading door of the first cabin 9 is open, and an operator comes to extract the pile 7 out of the cabin.
Il charge ensuite une nouvelle pile 7 à l’intérieur de la première cabine de traitement 9, et un nouveau cycle de traitement à l’intérieur de la première cabine de traitement 9 est lancé. It then loads a new stack 7 inside the first processing booth 9, and a new processing cycle inside the first processing booth 9 is launched.
Par ailleurs, le procédé comporte une étape de chargement d’une seule des piles 7 dans une seconde cabine de traitement 15. Furthermore, the method includes a step of loading only one of the batteries 7 in a second treatment cabin 15.
La seconde cabine de traitement 15 est comme décrit ci-dessus. The second treatment cabin 15 is as described above.
Le procédé comporte ensuite une étape de mise en configuration d’engagement de la pile de la ou chaque paroi déformable 1 1 de la seconde cabine de traitement 15, et une étape de douchage de la pile 7 chargée dans la seconde cabine de traitement 15 par la composition traitante. The method then comprises a step of setting the engagement configuration of the stack of the or each deformable wall 1 1 of the second treatment cabin 15, and a step of showering the stack 7 loaded into the second treatment cabin 15 by the treating composition.
Les étapes de mise en configuration d’engagement et de douchage sont comme décrit relativement à la première cabine de traitement 9. À l’issue de l’étape de douchage, le procédé comporte une étape de déchargement de la pile 7 hors de la seconde cabine 15. The steps of setting the engagement and showering configuration are as described in relation to the first treatment cabin 9. At the end of the showering step, the method includes a step of unloading the pile 7 out of the second cabin 15.
Cette étape de déchargement est effectuée comme décrit plus haut relativement à la première cabine 9. This unloading step is carried out as described above in relation to the first cabin 9.
L’étape de déchargement est suivie d’une étape de chargement d’une nouvelle pile 7 dans la seconde cabine de traitement 15, et un nouveau cycle de douchage à l’intérieur de la seconde cabine de traitement 15 est ensuite initié. The unloading step is followed by a step of loading a new pile 7 into the second treatment cabin 15, and a new showering cycle inside the second treatment cabin 15 is then initiated.
Avantageusement, les étapes de chargement et de déchargement de la première cabine de traitement 9 sont effectuées pendant l’étape de douchage dans la seconde cabine de traitement 15. Advantageously, the loading and unloading steps of the first treatment cabin 9 are carried out during the showering step in the second treatment cabin 15.
Inversement, les étapes de chargement et déchargement de la seconde cabine de traitement 15 sont effectuées pendant l’étape de douchage de la première cabine de traitement 9. Conversely, the loading and unloading steps of the second treatment cabin 15 are carried out during the showering step of the first treatment cabin 9.
Ainsi, le chargement et le déchargement de la première cabine de traitement 9 est effectué en temps masqué pendant le douchage dans la seconde cabine de traitement 15. Thus, the loading and unloading of the first treatment cabin 9 is carried out in masked time during showering in the second treatment cabin 15.
De la même manière, le chargement et le déchargement de la seconde cabine de traitement 15 est effectué en temps masqué pendant le douchage dans la première cabine de traitement 9. In the same way, the loading and unloading of the second treatment cabin 15 is carried out in masked time during showering in the first treatment cabin 9.
Le procédé de l’invention permet donc d’effectuer un traitement en continu, sans mise à l’arrêt complet de l’unité de traitement pour charger ou décharger les piles de contenants. Pendant qu’une des cabines est à l’arrêt, l’autre cabine est en fonctionnement. The method of the invention therefore makes it possible to carry out continuous processing, without completely stopping the processing unit to load or unload the stacks of containers. While one of the cabins is stopped, the other cabin is in operation.
La composition traitante utilisée pour le douchage présente une température comprise entre 30°C et 60°C. Avantageusement, elle présente une température comprise entre 45°C et 55°C. The treatment composition used for showering has a temperature between 30°C and 60°C. Advantageously, it has a temperature of between 45°C and 55°C.
Pour ce faire, la réserve 21 de composition traitante est chauffée en continue. Elle est chauffée en utilisant les moyens de chauffage 39. To do this, the reserve 21 of treatment composition is heated continuously. It is heated using heating means 39.
Dans chacune des deux cabines de traitement, le débit de composition traitante à l’étape de douchage est compris entre 50 et 500 m3 par m2 et par heure, de préférence entre 100 et 300 m3 par m2 et par heure. In each of the two treatment cabins, the flow rate of treatment composition in the showering step is between 50 and 500 m 3 per m 2 and per hour, preferably between 100 and 300 m 3 per m 2 and per hour.
Ceci correspond à un débit de composition traitante compris entre 60 m3 à 600 m3 par heure, réparti sur la section horizontale de la cabine, cette section étant par exemple d’environ 1 ,2 m2. This corresponds to a treatment composition flow rate of between 60 m 3 to 600 m 3 per hour, distributed over the horizontal section of the cabin, this section being for example approximately 1.2 m 2 .
Pendant l’étape de douchage dans la première cabine de traitement 9, l’organe de circulation 37 est en fonctionnement. Il aspire la composition traitante à partir de la réserve 21 , et la refoule dans le circuit de douchage 17 de la première cabine 9. L’électrovanne 29 est ouverte, alors que l’électrovanne 35 desservant le circuit de douchage 19 de la seconde cabine 15 est fermée. During the showering step in the first treatment cabin 9, the circulation member 37 is in operation. It sucks up the treatment composition from the reserve 21, and delivers it into the showering circuit 17 of the first cabin 9. The solenoid valve 29 is open, while the solenoid valve 35 serving the shower circuit 19 of the second cabin 15 is closed.
Inversement, pendant l’étape de douchage dans la seconde cabine de traitement 15, l’organe de circulation 37 est en fonctionnement, l’électrovanne 29 est fermée et l’électrovanne 35 est ouverte. Conversely, during the showering step in the second treatment cabin 15, the circulation member 37 is in operation, the solenoid valve 29 is closed and the solenoid valve 35 is open.
L’étape de douchage présente une durée comprise typiquement entre 10 secondes et 10 minutes, de préférence comprise entre 1 et 5 minutes, et valant idéalement entre 2 et 3 minutes. The showering step has a duration typically between 10 seconds and 10 minutes, preferably between 1 and 5 minutes, and ideally worth between 2 and 3 minutes.
La composition traitante est de tout type adapté. The treatment composition is of any suitable type.
Par exemple, la composition traitante est de l’eau ne contenant pas de composé actif particulier. En variante, la composition traitante est de l’eau contenant de l’acide phosphonique (HPO3H2), aussi appelé acide phosphoreux H3PO3. For example, the treatment composition is water not containing any particular active compound. Alternatively, the treatment composition is water containing phosphonic acid (HPO3H2), also called phosphorous acid H3PO3.
Le procédé et l’unité de traitement décrits ci-dessus peuvent présenter de multiples variantes. The method and the processing unit described above may have multiple variants.
Chaque cabine de traitement peut présenter une seule paroi latérale déformable, ou plus de deux parois latérales déformables, par exemple trois ou quatre parois latérales déformables. Each treatment cabin may have a single deformable side wall, or more than two deformable side walls, for example three or four deformable side walls.
L’unité de traitement pourrait comprendre plus de deux cabines de traitement fonctionnant en temps masqué. L’unité de traitement peu ainsi comporter trois cabines de traitement indépendantes, ou plus de trois cabines de traitement indépendantes. Une ou plusieurs des cabines de traitement sont utilisées pour le douchage, pendant qu’une ou plusieurs autres cabines de traitement sont en chargement/déchargement. The treatment unit could include more than two treatment cabins operating in masked time. The treatment unit can thus include three independent treatment cabins, or more than three independent treatment cabins. One or more of the treatment cabins are used for showering, while one or more other treatment cabins are loading/unloading.
Toutes les cabines sont agencées au-dessus de la même réserve de composition traitante, chaque cabine pouvant traiter une unique pile de contenants. All the cabins are arranged above the same reserve of treatment composition, each cabin being able to treat a single stack of containers.
Il est possible de prévoir pour chaque cabine un circuit de douchage dédié, avec un organe de circulation qui lui est propre. It is possible to provide a dedicated shower circuit for each cabin, with its own circulation system.
Les moyens de chauffage peuvent comporter un organe de chauffage électrique, tel qu’une résistance, directement immergé dans la réserve de composition traitante. The heating means may include an electric heating member, such as a resistor, directly immersed in the reserve of treating composition.

Claims

REVENDICATIONS
1. Procédé de traitement de produits végétaux conditionnés dans des contenants ajourés, le procédé comprenant les étapes suivantes : 1. Process for treating plant products packaged in perforated containers, the process comprising the following steps:
- empilage des contenants (5) en formant plusieurs piles (7), chaque pile (7) présentant une hauteur comprise entre 1 et 2,5 m et une section horizontale comprise entre 0,5 et 1 ,5 m2 ; - stacking the containers (5) by forming several stacks (7), each stack (7) having a height of between 1 and 2.5 m and a horizontal section of between 0.5 and 1.5 m 2 ;
- chargement d’une seule des piles (7) dans une première cabine de traitement (9) comprenant une ceinture de parois latérales (11 , 13), au moins une (11) des parois latérales étant déformable entre une configuration d’engagement et une configuration de libération la pile ; - loading of only one of the piles (7) in a first treatment cabin (9) comprising a belt of side walls (11, 13), at least one (11) of the side walls being deformable between an engagement configuration and a stack release configuration;
- mise en configuration d’engagement de la pile de la ou chaque paroi latérale déformable (11) de la première cabine de traitement (9) ; - setting the stack engagement configuration of the or each deformable side wall (11) of the first treatment cabin (9);
- douchage de la pile (7) chargée dans la première cabine de traitement (9) par une composition traitante ayant une température comprise entre 30°C et 60°C, avec un débit compris entre 160 et 300m3/m2/h et pendant une durée comprise entre 10s et 10mn ;- showering the pile (7) loaded in the first treatment cabin (9) with a treatment composition having a temperature between 30°C and 60°C, with a flow rate between 160 and 300m 3 /m 2 /h and for a period of between 10s and 10mn;
- déchargement de la pile (7) hors de la première cabine de traitement (9) ; - unloading the pile (7) out of the first treatment cabin (9);
- chargement d’une seule des piles (7) dans une seconde cabine de traitement (15) comprenant une ceinture de parois latérales (11 , 13), au moins une (11) des parois latérales étant déformable entre une configuration d’engagement et une configuration de libération la pile ; - loading of only one of the piles (7) in a second treatment cabin (15) comprising a belt of side walls (11, 13), at least one (11) of the side walls being deformable between an engagement configuration and a stack release configuration;
- mise en configuration d’engagement de la pile de la ou chaque paroi latérale déformable (11) de la seconde cabine de traitement (15) ; - setting the stack engagement configuration of the or each deformable side wall (11) of the second treatment cabin (15);
- douchage de la pile (7) chargée dans la seconde cabine de traitement (15) par une composition traitante ayant une température comprise entre 30°C et 60°C, avec un débit compris entre 50 et 500m3/m2/h et pendant une durée comprise entre 10s et 10mn ;- showering the pile (7) loaded in the second treatment cabin (15) with a treatment composition having a temperature between 30°C and 60°C, with a flow rate between 50 and 500m 3 /m 2 /h and for a period of between 10s and 10mn;
- déchargement de la pile (7) hors de la seconde cabine de traitement (15) ; les étapes de chargement et déchargement de la première cabine de traitement (9) étant effectuées pendant l’étape de douchage de la seconde cabine de traitement (15), et les étapes de chargement et déchargement de la seconde cabine de traitement (15) étant effectuées pendant l’étape de douchage de la première cabine de traitement (9). - unloading the pile (7) out of the second treatment cabin (15); the steps of loading and unloading the first treatment cabin (9) being carried out during the step of showering the second treatment cabin (15), and the steps of loading and unloading the second treatment cabin (15) being carried out during the showering step of the first treatment cabin (9).
2. Procédé selon la revendication 1 , dans lequel chaque pile comprend entre un et six contenant (5) par niveau. 2. Method according to claim 1, wherein each stack comprises between one and six containers (5) per level.
3. Procédé selon la revendication 1 ou 2, dans lequel la première cabine de traitement (9) et la seconde cabine de traitement (15) sont alimentées à partir d’une même réserve (21) de composition traitante. 3. Method according to claim 1 or 2, in which the first treatment cabin (9) and the second treatment cabin (15) are supplied from the same reserve (21) of treatment composition.
4. Procédé selon la revendication 3, dans lequel la réserve (21 ) de composition traitante est chauffée en continu. 4. Method according to claim 3, in which the reserve (21) of treatment composition is heated continuously.
5. Procédé selon l’une quelconque des revendications précédentes, dans lequel le débit de composition traitante à l’étape de douchage dans la première cabine de traitement (9) et dans la seconde cabine de traitement (15) est compris entre 60 et 600 m3/h. 5. Method according to any one of the preceding claims, in which the flow rate of treatment composition in the showering step in the first treatment cabin (9) and in the second treatment cabin (15) is between 60 and 600 m 3 /h.
6. Unité de traitement de produits végétaux conditionnés dans des contenants ajourés (5), les contenants (5) formant plusieurs piles (7), chaque pile (7) présentant une hauteur comprise entre 1 et 2,5 m et une section horizontale comprise entre 0,5 et 1 ,5 m2, l’unité de traitement (1 ) comprenant : 6. Processing unit for plant products packaged in perforated containers (5), the containers (5) forming several stacks (7), each stack (7) having a height of between 1 and 2.5 m and a horizontal section of between 0.5 and 1.5 m 2 , the processing unit (1) comprising:
- une première cabine de traitement (9) de taille adaptée pour recevoir une seule des piles (7), la première cabine de traitement (9) comprenant une ceinture de parois latérales (11 , 13), au moins une (11) des parois latérales étant déformable entre une configuration d’engagement et une configuration de libération la pile ; - a first treatment cabin (9) of size adapted to receive only one of the piles (7), the first treatment cabin (9) comprising a belt of side walls (11, 13), at least one (11) of the walls lateral being deformable between an engagement configuration and a release configuration of the stack;
- une seconde cabine de traitement (15) de taille adaptée pour recevoir une seule des piles (7), la seconde cabine de traitement (15) comprenant une ceinture de parois latérales (11 , 13), au moins une (11) des parois latérales étant déformable entre une configuration d’engagement et une configuration de libération la pile ; - a second treatment cabin (15) of size adapted to receive only one of the piles (7), the second treatment cabin (15) comprising a belt of side walls (11, 13), at least one (11) of the walls lateral being deformable between an engagement configuration and a release configuration of the stack;
- un circuit (17) de douchage de la pile (7) chargée dans la première cabine de traitement (9) par une composition traitante ; - a circuit (17) for showering the pile (7) loaded in the first treatment cabin (9) with a treatment composition;
- un circuit (19) de douchage de la pile (7) chargée dans la seconde cabine de traitement (15) par la composition traitante ; - a circuit (19) for showering the pile (7) loaded in the second treatment cabin (15) with the treatment composition;
- des moyens (39) de chauffage de la composition traitante, et - means (39) for heating the treatment composition, and
- un système (49) de déformation des parois déformables (11) de la première cabine de traitement (9) et un système (51 ) de déformation des parois déformables (11 ) de la seconde cabine de traitement (15). - a system (49) for deforming the deformable walls (11) of the first treatment cabin (9) and a system (51) for deforming the deformable walls (11) of the second treatment cabin (15).
7. Unité de traitement selon la revendication 6, dans lequel le circuit de douchage (17) de la première cabine de traitement (9) et le circuit de douchage (19) de la seconde cabine de traitement (15) sont alimentés par une même réserve (21 ) de composition traitante. 7. Treatment unit according to claim 6, in which the showering circuit (17) of the first treatment cabin (9) and the showering circuit (19) of the second treatment cabin (15) are supplied by the same reserve (21) of treating composition.
8. Unité de traitement selon la revendication 7, dans lequel les moyens de chauffage (39) chauffent la composition traitante contenue dans la réserve (21). 8. Treatment unit according to claim 7, in which the heating means (39) heat the treatment composition contained in the reserve (21).
9. Unité de traitement selon l’une quelconque des revendications 6 à 8, dans lequel les moyens de chauffage (39) présentent une puissance comprise entre 500 et 1200 kW. 9. Processing unit according to any one of claims 6 to 8, in which the heating means (39) have a power of between 500 and 1200 kW.
10. Unité de traitement selon l’une quelconque des revendications 6 à 9, dans lequel le débit de composition traitante dans le circuit de douchage (17) de la première cabine de traitement (9) et dans le circuit de douchage (19) de la seconde cabine de traitement (15) est compris entre 50 et 500 m3/m2/h. 10. Treatment unit according to any one of claims 6 to 9, in which the flow rate of treatment composition in the showering circuit (17) of the first treatment cabin (9) and in the showering circuit (19) of the second treatment cabin (15) is between 50 and 500 m 3 /m 2 /h.
PCT/EP2023/074770 2022-09-08 2023-09-08 Method for processing plant products and corresponding processing unit WO2024052548A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2559354A1 (en) * 1984-02-10 1985-08-16 Fmc Corp THERMAL PROCESSING APPARATUS, ESPECIALLY FOR STERILIZING FOOD PRODUCTS AND TROLLEY FOR SUCH AN APPARATUS
FR2644137A1 (en) * 1989-03-13 1990-09-14 Haas Franz Waffelmasch METHOD AND DEVICE FOR STACKING AND / OR CONTROLLING SINGLE-PIECE INDIVIDUAL CONTAINERS OPENED ON A SIDE
JP2000044058A (en) * 1998-07-31 2000-02-15 Iseki & Co Ltd Seeding and tiering-up device for raising seedling box
FR2909525A1 (en) 2006-12-07 2008-06-13 Xeda Internat Sa Treating fruits/vegetables comprises collecting conditioning means having fruits/vegetables in block compact in housing bounded by belt on side walls inside enclosure, and bringing each deformable wall in its thread configuration of block
JP2014068595A (en) * 2012-09-28 2014-04-21 Iseki & Co Ltd Stacking facility

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2559354A1 (en) * 1984-02-10 1985-08-16 Fmc Corp THERMAL PROCESSING APPARATUS, ESPECIALLY FOR STERILIZING FOOD PRODUCTS AND TROLLEY FOR SUCH AN APPARATUS
FR2644137A1 (en) * 1989-03-13 1990-09-14 Haas Franz Waffelmasch METHOD AND DEVICE FOR STACKING AND / OR CONTROLLING SINGLE-PIECE INDIVIDUAL CONTAINERS OPENED ON A SIDE
JP2000044058A (en) * 1998-07-31 2000-02-15 Iseki & Co Ltd Seeding and tiering-up device for raising seedling box
FR2909525A1 (en) 2006-12-07 2008-06-13 Xeda Internat Sa Treating fruits/vegetables comprises collecting conditioning means having fruits/vegetables in block compact in housing bounded by belt on side walls inside enclosure, and bringing each deformable wall in its thread configuration of block
JP2014068595A (en) * 2012-09-28 2014-04-21 Iseki & Co Ltd Stacking facility

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