FR2494413A1 - Versatile unit for bleaching, drying or chilling foodstuffs - involving various heating and ventilation systems along a continuous oven - Google Patents

Versatile unit for bleaching, drying or chilling foodstuffs - involving various heating and ventilation systems along a continuous oven Download PDF

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Publication number
FR2494413A1
FR2494413A1 FR8024700A FR8024700A FR2494413A1 FR 2494413 A1 FR2494413 A1 FR 2494413A1 FR 8024700 A FR8024700 A FR 8024700A FR 8024700 A FR8024700 A FR 8024700A FR 2494413 A1 FR2494413 A1 FR 2494413A1
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France
Prior art keywords
drying
bleaching
blanching
chilling
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
FR8024700A
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French (fr)
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POUPEL CHARLES
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POUPEL CHARLES
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Filing date
Publication date
Application filed by POUPEL CHARLES filed Critical POUPEL CHARLES
Priority to FR8024700A priority Critical patent/FR2494413A1/en
Publication of FR2494413A1 publication Critical patent/FR2494413A1/en
Withdrawn legal-status Critical Current

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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
    • A23B7/02—Dehydrating; Subsequent reconstitution
    • A23B7/0205—Dehydrating; Subsequent reconstitution by contact of the material with fluids, e.g. drying gas or extracting 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
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A23B7/06—Blanching
    • 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
    • A23L3/40—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by drying or kilning; Subsequent reconstitution
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/02—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces
    • F26B17/04—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces the belts being all horizontal or slightly inclined

Abstract

Appts. for blanching, concentrating, drying, dehydrating or chilling foodstuffs involves a conveyor passing through a series of enclosures in which the heating and ventilation rates can be adjusted to suit the process and the prod. The appts. incorporates at least two forced ventilation units, steam injection for the blanching unit, heat exchangers spaced to provide a logarithmic temperature profile in the drying tunnel. The entrained air may be filtered, for hygienic reasons. The exhausted air may be chilled to condense out entrained moisture before possible re-use. Air in the prod. chilling chamber is pref. recycled countercurrent to the passing food. Can be set for various different treatment cycles, e.g. blanching and drying pastes or drying and dehydrating fruits and vegetables, in a single process.

Description

La présente invention concerne une chaine en tunnel avec tapis transporteur, permettant le blanchiment, l'dvapora- -tion, le séchage et le refroidissement de produits alimentai -res (P1. I/4) avant leur conditionnement dans une enceinte, ainsi que le séchage et la déshydratation de végétaux à l'état naturel.(Pl. I/4 et PI. IV/4)
Chaque opération citée, peut être élaborée séparément en fonction de la composante produit, ou faire ltobjet d'une chaine continue, dans laquelle les quatre transformations sont simultanées.The present invention relates to a tunnel chain with conveyor belt, allowing the bleaching, devapora- tion, drying and cooling of food products (P1. I / 4) before their packaging in an enclosure, as well as the drying and dehydration of plants in their natural state (Pl. I / 4 and PI. IV / 4)
Each cited operation can be developed separately depending on the product component, or be the subject of a continuous chain, in which the four transformations are simultaneous.

La composante produit est représentée par les valeurs,
- Masse volumique.The product component is represented by the values,
- Volumic mass.

- Chaleur spécifique. - Specific heat.

- Température maxi superficielle. - Maximum surface temperature.

- Extrait sec, entrée, sortie. - Dry extract, entry, exit.

Bulle intervient directement sur les différents réglages thermiques, aérauliques et la vitesse de passage du produit. Bulle intervenes directly on the various thermal and aeraulic settings and the speed of passage of the product.

Le dispositif présent, permet deux utilisations couran -tes pour la conservation. The present device allows two current uses for conservation.

Blanchiment, séchage pour les pâtes alimentaires (ravio -lis, canéllonis, spaghettis, tortelinis, nouilles, etc...) (P1. 1/4 rep. A.B.C.D.E.F.G.)
Séchage, déshydratation pour les fruits et légumes, (mais, champignons, tabac, pommes de terre, etc...) P1. I/4 rep.Blanching, drying for pasta (ravio -lis, canéllonis, spaghetti, tortelinis, noodles, etc.) (P1. 1/4 rep. ABCDEFG)
Drying, dehydration for fruits and vegetables, (corn, mushrooms, tobacco, potatoes, etc.) P1. I / 4 rep.

A.B.D.E.F.H.)
Les particularités de la présente invention se situent dans la forme des éléments du tunnel, répondant à des critères aérauliques, indispensables au rendement, ainsi qu'au chemine -ment progressif des opérations, à contre courant avec le dd91- -lement des produits.(PI. II/4 rep. 4.8.9)
Opération Blanchiment : (Pl.I/4 rep.G)
Dans le cadre des pâtes alimentaires, cette opéra- -tion à pour but, d'homogéïniser superficiellement le produit et en transformer l'aspect physique
Cette opération se déroule dans un tunnel bien calo -rifugd et de petit volume, (P1. III/4 rep.14) la projection de vapeur perdue à 70/800 sur le produit, est proportionnelle dans le temps de passage avec le débit massique linéaire. (Pl.I/4)
Opération Evaporation : (Pl.II/4 rep. 8.9.10)
Après le passage en tunnel de vapeur suspendue, il est nécessaire d'évaporer par extraction,(rep.IO) l'air saturé d1humidité, ainsi que le produit, qui sera ventilé pendant son passage dans le caisson, (rep.8) de cet échange thermique un condensat sera récupéré en partie basse dans un cuvelage (rep.I2)
Le ventilateur axial d'extraction (rep.IO) est équipé d'un modérateur,(rep.9) permettant de réguler le debit volumique et par ce faît la pression dynamique, point d'équilibre avec la masse volumique du produit et sa surface de prise à l'air. ABDEFH)
The particularities of the present invention lie in the shape of the elements of the tunnel, meeting aeraulic criteria, essential to performance, as well as to the progressive path of operations, against the current with the dd91- -lement of products. PI. II / 4 rep. 4.8.9)
Money Laundering Operation: (Pl.I / 4 rep.G)
In the context of pasta, this operation aims to homogenize the product superficially and transform its physical appearance
This operation takes place in a well calo -rifugd tunnel and of small volume, (P1. III / 4 rep.14) the projection of vapor lost at 70/800 on the product, is proportional in the passage time with the mass flow linear. (Pl.I / 4)
Operation Evaporation: (Pl.II / 4 rep. 8.9.10)
After passing through the suspended steam tunnel, it is necessary to evaporate by extraction, (rep.IO) the air saturated with humidity, as well as the product, which will be ventilated during its passage in the box, (rep. 8) this heat exchange a condensate will be recovered in the lower part in a casing (rep.I2)
The axial extraction fan (rep.IO) is equipped with a moderator, (rep.9) allowing to regulate the volume flow and by this fact the dynamic pressure, point of equilibrium with the density of the product and its surface air intake.

Opération Séchage : (Pl.I/4 rep.D)
La puissance thermique totale de la batterie de chauf -fe vapeur, est représentée par un nombre de faisceaux de tubes à ailettes verticaux, dont l'implantation sur les collecteurs d'alimentation, donne un espacement de progression logarithmique, compris sur le parcours séchage (rep.5)
La surface totale d1 échange est proportionnelle au gradiant croissant de la température.Drying operation: (Pl.I / 4 rep.D)
The total thermal power of the steam heating coil, is represented by a number of bundles of tubes with vertical fins, whose installation on the supply manifolds, gives a logarithmic progression spacing, included on the drying path ( rep. 5)
The total exchange area is proportional to the increasing gradient of the temperature.

Le régime laminaire de l'air chaud, à contre courant avec le défilement du produit, suit un parcours accidenté par des chicanes en t81e perforée, obligeant la veine d'air à circu -ler de bas en haut des caissons en traversant le tapis métalli -que de translation.  The laminar regime of hot air, against the current with the movement of the product, follows an uneven course by baffles in perforated t81e, forcing the air stream to circulate from bottom to top of the boxes crossing the metallic carpet -that of translation.

Deux températures sont à respecter rigoureusement pour les résultats, la plus élevée, que peut supporter le produit par rayonnement et convection et, la plus basse, que peut supporter l'air humide venant de l'extérieur. Two temperatures must be strictly observed for the results, the highest that can be supported by the product by radiation and convection and the lowest that can be supported by humid air coming from outside.

Opératon Refroidissement : (Pl. I/4 rep. A.B.C.)
Le produit venant de l'opération séchage rayonne une certaine inertie thermique qu'il dégage en entrant dans le caisson de refroidissement à effet venturi.(rep.4)
Cette enceinte de grand volume, dont l'entrée d'air extérieur, est contrôlé en gravimétrie par des batteries de filtrations (rep. 1) répondant aux normes d'hygiène alimen -taire, permet avec un ventilateur de recyclage (rep.2.3) régu- -lé sur sonde thermique, de changer l'air de cette enceinte pour obtenir en permanence un degré de température avoisinant la température ambiante extérieure . Cooling operation: (Pl. I / 4 rep. ABC)
The product coming from the drying operation radiates a certain thermal inertia which it releases when entering the cooling cabinet with venturi effect. (Ref. 4)
This large volume enclosure, including the outside air intake, is gravimetrically controlled by filtration batteries (rep. 1) meeting food hygiene standards, allows with a recycling fan (rep. 2.3) regulated on a thermal probe, to change the air in this enclosure to permanently obtain a temperature degree close to the outside ambient temperature.

Opération Déshydratation : (Pl. IV/4 rep. 16)
C'est une opération qui peut Outre envisagée dans les deux cas, blanchiment, évaporation, séchage, refroidisse- -ment, ou séchage, refroidissement.(Pl. I/4)
La partie matériel dans le premier cas, est repré- -sentée par les éléments (11. III/4 et PI. IV/4) et dans le deuxième cas par les éléments (Pl. II/4 et PI. IV/4)
La batterie de source froide (rep. H) à pour but de refroidir au point de rosée la veine d'air chaud venant de l'extracteur,(rep. B) de condenser au point le plus bas dans le redroidissement, compte-tenu d'un gradient de température désiré, avant la réinjection dans l'enceinte.(Rep.4) Dehydration Operation: (Pl. IV / 4 rep. 16)
It is an operation which can Besides envisaged in both cases, bleaching, evaporation, drying, cooling, or drying, cooling (Pl. I / 4)
The material part in the first case, is represented by the elements (11. III / 4 and PI. IV / 4) and in the second case by the elements (Pl. II / 4 and PI. IV / 4)
The cold source coil (ref. H) aims to cool the dew point of the hot air coming from the extractor, (rep. B) to condense at the lowest point in the cooling, taking into account of a desired temperature gradient, before reinjection into the enclosure. (Rep. 4)

Claims (4)

REVENDICATIONS 1 e Procédés permettant la transformation en l'état de produits alimentaires et de végétaux pour leur condition nement,par des opérations de blanchiment,d'évaporation, de séchage, de refroidissement, et de déshydratation. 1 e Processes allowing the transformation in the state of food products and plants for their conditioning, by operations of bleaching, evaporation, drying, cooling, and dehydration. III/4 et IV/4 , réplique exacte des plans de construction qui ont été élaborés d'après les études thermiques et aérauliques de ces procédes,quant aux résultats sur les essais.III / 4 and IV / 4, exact replica of the construction plans which have been drawn up according to the thermal and aeraulic studies of these procedures, as for the results on the tests. 2 . Procédés selon revendication 1 permettant la mise en place d1un tunnel suivant les planches I1/4 et 2. Methods according to claim 1 allowing the establishment of a tunnel according to the planks I1 / 4 and ( PI. I/4(PI. I / 4 3 . Procédés selon revendications 1 et 2 caractérisés par l'étude thermique de la batterie de chauffe vapeur, sa forme, sa surface d'échange progressive, son augmentation linéaire en température, sa réaction thermique à contre courant avec le produit. 3. Processes according to claims 1 and 2 characterized by the thermal study of the steam heater, its shape, its progressive exchange surface, its linear increase in temperature, its thermal reaction against the current with the product. 4 . Procédés selon revendications 1 et 2 caractérisés par la forme du caisson de refroidissement,son action de détente par effet venturi à contre courant avec l'arrivée produit, son recyclage d'air permanent,régulé sur sonde pour entre à la température ambiante extérieure.  4. Processes according to claims 1 and 2 characterized by the shape of the cooling box, its expansion action by venturi effect against the current with the product arrival, its permanent air recycling, regulated on probe for entering at outside ambient temperature.
FR8024700A 1980-11-14 1980-11-14 Versatile unit for bleaching, drying or chilling foodstuffs - involving various heating and ventilation systems along a continuous oven Withdrawn FR2494413A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8024700A FR2494413A1 (en) 1980-11-14 1980-11-14 Versatile unit for bleaching, drying or chilling foodstuffs - involving various heating and ventilation systems along a continuous oven

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8024700A FR2494413A1 (en) 1980-11-14 1980-11-14 Versatile unit for bleaching, drying or chilling foodstuffs - involving various heating and ventilation systems along a continuous oven

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FR2494413A1 true FR2494413A1 (en) 1982-05-21

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130011534A1 (en) * 2010-03-24 2013-01-10 Desarrollos Sanitarios Hortofruticolas 2121, S.L. Method for preserving fruit, vegetables and the like
CN106418622A (en) * 2015-12-29 2017-02-22 南京海昌中药集团有限公司 Mobile Chinese medicine blanching machine
GB2542308B (en) * 2014-06-12 2021-03-10 Skinny & Co Llc Dehumidification method and apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130011534A1 (en) * 2010-03-24 2013-01-10 Desarrollos Sanitarios Hortofruticolas 2121, S.L. Method for preserving fruit, vegetables and the like
GB2542308B (en) * 2014-06-12 2021-03-10 Skinny & Co Llc Dehumidification method and apparatus
CN106418622A (en) * 2015-12-29 2017-02-22 南京海昌中药集团有限公司 Mobile Chinese medicine blanching machine
CN106418622B (en) * 2015-12-29 2019-11-22 南京海昌中药集团有限公司 A kind of mobile Chinese medicine blanching machine

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