FR2538887A1 - Versatile dryer permitting the total or partial dehydration of products, in particular food products - Google Patents

Versatile dryer permitting the total or partial dehydration of products, in particular food products Download PDF

Info

Publication number
FR2538887A1
FR2538887A1 FR8222162A FR8222162A FR2538887A1 FR 2538887 A1 FR2538887 A1 FR 2538887A1 FR 8222162 A FR8222162 A FR 8222162A FR 8222162 A FR8222162 A FR 8222162A FR 2538887 A1 FR2538887 A1 FR 2538887A1
Authority
FR
France
Prior art keywords
tunnel
products
air
drying
dryer
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.)
Granted
Application number
FR8222162A
Other languages
French (fr)
Other versions
FR2538887B1 (en
Inventor
Guy Frechin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to FR8222162A priority Critical patent/FR2538887B1/en
Publication of FR2538887A1 publication Critical patent/FR2538887A1/en
Application granted granted Critical
Publication of FR2538887B1 publication Critical patent/FR2538887B1/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/02Machines 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
    • F26B17/08Machines 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 arranged in a sinuous or zig-zag path
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23BPRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00Preservation or chemical ripening of fruit or vegetables
    • A23B7/02Dehydrating; Subsequent reconstitution
    • A23B7/0205Dehydrating; Subsequent reconstitution by contact of the material with fluids, e.g. drying gas or extracting liquids
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, 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
    • A23L3/00Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/40Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by drying or kilning; Subsequent reconstitution
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/02Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

The subject of the invention is a dryer for the total or partial dehydration of products, particularly food products, characterised in that it comprises an elongated drying tunnel 1 in which are superposed horizontally and in alternating manner a certain number of conveyor belts T1 to T6, at least two drying air circulation circuits in superposed closed horizontal loops, each loop comprising heat generation means, 7, 8, new air introduction means 11, 12, and moist air circulation means 9, 10, and in that the said circuits comprise means 16 capable of regulating a possible transfer of air from one circuit to the neighbouring circuit, outside the drying tunnel 1. Application to the dehydration of, in particular, food products.

Description

SÉCHOIR POLYVALENT PERMETTANT LA DÉSHYDRATATION
s r 7
TOTALE OU PARTIELLE DE PRODUITS NOTAMMENT ALIMENTAIRES
La présente invention se rapporte à un nouveau type de séchoir destiné à déshydrater des matières à perte de masse lente ou rapide, de faible ou forte densité, entières ou coupées, telles que fruits, légumes, céréales, etc.. en permettant une déshydratation totale ou partielle des produits, à volonté.
VERSATILE DRYER FOR DEHYDRATION
sr 7
TOTAL OR PARTIAL OF PARTICULARLY FOOD PRODUCTS
The present invention relates to a new type of dryer intended to dehydrate materials with a slow or rapid loss of mass, of low or high density, whole or cut, such as fruits, vegetables, cereals, etc. by allowing total dehydration or partial products, at will.

Le but de l'invention est de réaliser un appareil de conception simple, assurant à la fois le séchage et/ou la stérilisation et d'un maniement simple permettant l'obtention du produit désiré. The object of the invention is to provide a device of simple design, ensuring both drying and / or sterilization and simple handling allowing the production of the desired product.

A cet effet, l'invention a pour objet un séchoir pour la déshydratation totale ou partielle de produits notamment alimentaires, caractérisé en ce qu'il comprend un tunnel de séchage allongé dans lequel sont superposés horizontalement et alternés un certain nombre de tapis de convoyage des produits depuis l'entrée, à une extrémité du tunnel, sur le tapis supérieur jusqu'd l'extrémité d'évacuation du tapis inférieur, au moins deux circuits semi-indépendants de circulation d'air de séchage en boucles horizontales fermées superposées, chaque boucle comportant une trajectoire extérieure audit tunnel et une trajectoire intérieure affectant un nombre déterminé de tapis, et étant munie de moyens de génération de chaleur, de moyens d'introduction d'air neuf, de moyens de circulation de l'air de séchage et de moyens d'évacuation de 1'air humide et en ce que lesdits circuits comportent des moyens propres à régler un éventuel transfert d'air dsun circuit au circuit voisin, extérieurement au tunnel de séchage. To this end, the subject of the invention is a dryer for the total or partial dehydration of products, in particular foodstuffs, characterized in that it comprises an elongated drying tunnel in which a number of conveyor belts are superimposed horizontally and alternate produced from the entrance, at one end of the tunnel, on the upper belt to the discharge end of the lower belt, at least two semi-independent circuits of drying air circulation in closed horizontal superposed loops, each loop comprising an external path to said tunnel and an internal path affecting a determined number of mats, and being provided with means for generating heat, means for introducing fresh air, means for circulating the drying air and means for evacuating moist air and in that said circuits include means suitable for regulating a possible transfer of air from a circuit to the neighboring circuit, outside the tunnel l drying.

Du fait de sa structure de séchage étagée, chaque circuit de circulation d'air ayant ses propres caractéristiques et ses propres réglages en températures, hygrométrie et vitesse de circulation d'air, le dispositif selon l'invention procure une très grande facilité et souplesse d'emploi permettant une parfaite adéquation des conditions de séchage au type de produit traité et à la qualité du séchage ou de la stérilisation désirée. Due to its stepped drying structure, each air circulation circuit having its own characteristics and its own settings in temperature, humidity and air circulation speed, the device according to the invention provides very great ease and flexibility. 'employment allowing a perfect adequacy of the drying conditions to the type of product treated and to the quality of drying or sterilization desired.

D'autres caractéristiques et avantages ressortiront de la description qui va suivre d'un mode de réalisation du dispositif selon l'invention, description donnée à tltre d'exem4 ple uniquement et en regard des dessins annexés sur lesquels
- Fig. 1 représente une vue schématique en perspective d'un
séchoir conformé à l'invention
- Fig. 2 représente une vue en bout du sechoir de la Fig.l;
- Fig. 3 représente une vue de dessus du séchoir,
- Fig. 4 représente une vue de côté du tunnel de séchage,
et,
- Fig. 5 illustre en vues partielles trois types de tapis
utilisables conjointement dans le tunnel de séchage
Le séchoir représenté sur les dessins comporte un tunnel de séchage allongé l dans lequel sont superposés horisontalement plusieurs tapis de convoyage T1 à T6 en alternance.
Other characteristics and advantages will emerge from the description which follows of an embodiment of the device according to the invention, description given to tltre of example 4 only and with reference to the appended drawings in which
- Fig. 1 shows a schematic perspective view of a
dryer in accordance with the invention
- Fig. 2 shows an end view of the dryer of Fig.l;
- Fig. 3 represents a top view of the dryer,
- Fig. 4 represents a side view of the drying tunnel,
and,
- Fig. 5 illustrates in partial views three types of carpet
can be used together in the drying tunnel
The dryer shown in the drawings comprises an elongated drying tunnel l in which several conveyor belts T1 to T6 are stacked horizontally alternately.

c'est-a-dire chacun alimentant le tapis immédiatement en dessous (Fig. 4). that is to say each feeding the belt immediately below (Fig. 4).

L'introduction des produits à traiter se fait à la partie supérieure du .tunnel, à une extrémité, sur l'extrémité dépassante du premier tapis ou tapis supérieur T1. The products to be treated are introduced at the upper part of the tunnel, at one end, onto the protruding end of the first carpet or upper carpet T1.

L'extraction des produits se fait à l'extrémité dépassante du dernier tapis ou tapis inférieur T6. The products are extracted at the protruding end of the last carpet or lower carpet T6.

Eventuellement un recyclage des produits évacués par le dernier tapis T6 est possible par réintroduction sur l'avant-dernier tapis T5 suivant la flèche R (Fig. 4) par l'intermédiaire d'un registre articulé 3. Possibly recycling of the products evacuated by the last belt T6 is possible by reintroduction on the penultimate belt T5 according to the arrow R (Fig. 4) via an articulated register 3.

Sur un des côtés du tunnel 1 sont disposées deux gaines horizontales superposées 4 et 5 séparées par une cloison horizontale 6 et communiquant toutes les deux avec les deux extrémités du tunnel, chacune avec la demi-partie supérieure ou inférieure du tunnel 1. A cet effet la paroi latérale la du tunnel, côté gaines 4,5, est interrompue aux ex trémités pour permettre la circulation d'air entre chaque gaine 4,5 et la moitié concernée du tunnel 1 qui est ainsi fictivement divisé en deux zones semi-independantes supérieure A et inférieure B (Fig. 2). On one side of the tunnel 1 are arranged two superimposed horizontal sheaths 4 and 5 separated by a horizontal partition 6 and both communicating with the two ends of the tunnel, each with the upper or lower half-part of the tunnel 1. For this purpose the side wall of the tunnel, on the duct side 4.5, is interrupted at the ends to allow air circulation between each duct 4.5 and the half concerned of the tunnel 1 which is thus fictitiously divided into two semi-independent upper zones A and lower B (Fig. 2).

Dans chaque gaine extérieure 4,5 sont disposés un générateur de chaleur symbolisé en 7 et 8 respectivement, un ventilateur symbolisé en 9 et 10 respectivement, et un registre d'entrée d'air neuf 11 et 12 respectivement. In each outer sheath 4.5 are arranged a heat generator symbolized in 7 and 8 respectively, a fan symbolized in 9 and 10 respectively, and a fresh air inlet register 11 and 12 respectively.

En outre, du côté introduction des produits la gaine 4 comporte un conduit 13 d'évacuation d'air humide à l'atmosphère, muni d'un volet mobile 14 de réglage de la section de passage. De même la gaine 5 comporte au droit de I'extrémité d'introduction des produits un registre mobile 15 de réglage de l'évacuation a l'atmosphère de l'air humide. Ce registre 15 se trouve, de même que le conduit 13, sensiblement au droit du passage faisant communiquer le tunnel 1 avec les gaines 4 et 5. In addition, on the product introduction side, the sheath 4 comprises a duct 13 for evacuating moist air to the atmosphere, provided with a movable flap 14 for adjusting the passage section. Likewise, the sheath 5 comprises, at the level of the end of the introduction of the products, a mobile register 15 for adjusting the evacuation to the atmosphere of humid air. This register 15 is, like the conduit 13, substantially at the right of the passage making the tunnel 1 communicate with the sheaths 4 and 5.

Enfin la cloison séparatrice 6 entre les gaines 4 et 5 comporte, toujours au droit de la communication entre tunnel 1 et gaine 4,5, un orifice de passage obturable plus ou moins à l'aide d'un registre~l6 mobile vers le bas autour d'un axe horizontal (Fig. 1). Finally the separating partition 6 between the sheaths 4 and 5 comprises, still in line with the communication between tunnel 1 and sheath 4.5, a passage orifice closable more or less using a register ~ l6 movable downwards around a horizontal axis (Fig. 1).

Dans chaque gaine 4,5 est placée une sonde hygrométrique 17 sensiblement entre les générateurs d'air chaud 7, 8 et l'orifice de communication entre l'enceinte du tunnel 1 et les gaines 4 et 5, côté introduction des produits. In each sheath 4.5 is placed a hygrometric probe 17 substantially between the hot air generators 7, 8 and the communication orifice between the enclosure of the tunnel 1 and the sheaths 4 and 5, on the product introduction side.

Des déflecteurs cintrés fixes -18 (Fig. 3) sont avantageusement disposés dans les angles- libres du parallélépi pède délimité par le tunnel 1 et les gaines 4,5 afin de faciliter la circulation en boucle fermée des flux d'air. Fixed curved deflectors -18 (Fig. 3) are advantageously arranged in the free angles of the parallelepeped path delimited by the tunnel 1 and the ducts 4,5 in order to facilitate the circulation in a closed loop of the air flows.

La Fig. 5 représente trois types de tapis de convoyage utilisables conjointement dans l'enceinte-l. C'est ainsi queles tapis supérieurs T1 et T2 pourront être constitués par le tapis 19 à grandes perforations 20, les tapis intermédiaires
T3 et T4 pourront être constitués par le tapis 21 à perforations moyennes 22 et les deux tapis inférieurs T5 et T6 par le tapis 23 à petites perforations 24. L'emploi de ces divers types de tapis permet de limiter les problèmes d'interface et d'améliorer l'homogénéité du séchage et sa rapidité.
Fig. 5 shows three types of conveyor belts usable jointly in the enclosure-1. This is how the upper carpets T1 and T2 can be formed by the carpet 19 with large perforations 20, the intermediate carpets
T3 and T4 could be constituted by the mat 21 with medium perforations 22 and the two lower belts T5 and T6 by the mat 23 with small perforations 24. The use of these various types of mat makes it possible to limit the problems of interface and d '' improve the uniformity of drying and its speed.

Le fonctionnement du dispositif représenté et décrit ci-dessus est le suivant.  The operation of the device shown and described above is as follows.

Les deux gaines 4 et 5 déterminent deux flux de circulation d'air de séchaqe en boucle fermée horizontale. The two ducts 4 and 5 determine two flows of drying air circulation in a horizontal closed loop.

Le flux supérieur emprunte la gaine 4 et la demipartie supérieure A du tunnel 1. The upper flow follows the sheath 4 and the upper half-part A of the tunnel 1.

Le flux inférieur emprunte parallèlement la gaine 5 et la demi-partie inférieure B. The lower flow runs parallel to the sheath 5 and the lower half-part B.

La jonction entre gaines et tunnel se fait aux extrémités de l'ensemble par les passages ménagés par les interruptions de la cloison la. The junction between ducts and tunnel is made at the ends of the assembly by the passages provided by the interruptions of the partition la.

Ces deux circuits sont semi-indépendants en ce sens qu'il n'y a pas de cloisonnement étanche entre circuitsà-l'in- térieur du tunnel 1. These two circuits are semi-independent in the sense that there is no watertight partitioning between circuits inside the tunnel 1.

Les deux flux d'air de séchage peuvent être commandés indépendamment l'un de l'autre grâce aùx dispositifs indépendants 7 à 10 et 17. Ceci permet de moduler à volonté le débit, la température et le degré d'humidité de chacun des flux. The two drying air flows can be controlled independently of each other thanks to independent devices 7 to 10 and 17. This makes it possible to modulate at will the flow rate, the temperature and the degree of humidity of each of the flows. .

Le séchoir selon l'invention est polyvalent car il permet une déshydratation totale ou partielle ainsi qu'une stérilisation des produits. The dryer according to the invention is versatile because it allows total or partial dehydration as well as sterilization of the products.

La déshydratation totale est obtenue en utilisant la totalité de l'appareil,c'est-à-dire en mettant en service les générateurs 7 et 8 et les ventilateurs 9 et 10. Total dehydration is obtained by using the entire apparatus, that is to say by commissioning the generators 7 and 8 and the fans 9 and 10.

Les registres 11 et 12 d'introduction d'air neuf sont commandés à la main ou mécaniquement. The registers 11 and 12 for introducing fresh air are controlled by hand or mechanically.

La sonde 17 de contrôle -hygrométrique de la gaine supérieure 4 règle le volet 14 et commande le rejet à l'extérieur de l'air humide de la gaine 4. The hygrometric control probe 17 of the upper sheath 4 regulates the flap 14 and controls the rejection outside of the humid air of the sheath 4.

La sonde 17 de la gaine inférieure 5 règle la position du registre 15 et commande le rejet à l'extérieur de l'air humide de la gaine 5. The probe 17 of the lower sheath 5 regulates the position of the damper 15 and controls the rejection outside of the humid air of the sheath 5.

A tout moment, il est possible de transférer une partie du flux d'air inférieur vers l'étage supérieur, ou inversement éventuellement, grâce au registre 16 pouvant être
commandé manuellement ou mécaniauement à partir de n'importe quel paramètre,par exemple le degré hygrométrique.
At any time, it is possible to transfer part of the lower air flow to the upper floor, or vice versa possibly, thanks to the register 16 which can be
controlled manually or mechanically from any parameter, for example the humidity.

Le séchoir permet une déshydratation partielle(pré- ou post-séchage) ou une stérilisation, par ltutilisation de la gaine inférieure 5 et plus précisément en utilisant les tapis T5 et T6 en introduisant les produits à traiter (en particulier des produits conditionnes à stériliser)par le regis tre 3. The dryer allows partial dehydration (pre- or post-drying) or sterilization, by the use of the lower sheath 5 and more precisely by using the belts T5 and T6 by introducing the products to be treated (in particular packaged products to be sterilized) by register 3.

Les ventilateurs indépendants 9 et 10 sont régulables en permanence et assurent une ventilation horizontale sans pression par léchage du produit dense ou non. The independent fans 9 and 10 are continuously adjustable and provide horizontal ventilation without pressure by licking the dense product or not.

Les générateurs 7 et 8 sont mono ou bi-énergie,contrôlésthermiquement indépendamment de façon à obtenir un gradient thermique d'étage à la demande et peuvent recevoir un récupérateur d'énergie. Generators 7 and 8 are mono or bi-energy, thermally controlled independently so as to obtain a stage thermal gradient on demand and can receive an energy recovery unit.

Les sondes 17 peuvent être remplacées par des thermocouples sur bulbe humide ou tout autre dispositif équivalent. The probes 17 can be replaced by thermocouples on a wet bulb or any other equivalent device.

Le séchoir selon l'invention présente un excellent rendement instantané à la demande grâce à la température et à l'hygrométrie programmables. The dryer according to the invention has an excellent instantaneous output on demand thanks to the programmable temperature and humidity.

I1 permet également le recyclage des produits insuffisamment secs. It also allows the recycling of insufficiently dry products.

Le nombre de circuits indépendants d'air de séchage en boucle fermée horizontale n'est pas limité à deux,il suffit de-multiplier les gaines latérales superposées telles que 4 et 5 avec chacune son propre système de chauffage, circulation d'air et contrôle d'entrée d'air neuf et de sortie d'air humide. Dans un tel séchoir multi-étage chaque gaine peut communiquer avec sa ou ses gaines adjacentes par un dis positif du type du registre 16. The number of independent horizontal closed-loop drying air circuits is not limited to two, it suffices to multiply the superimposed lateral ducts such as 4 and 5, each with its own heating, air circulation and control system. fresh air inlet and humid air outlet. In such a multi-stage dryer, each sheath can communicate with its adjacent sheath (s) by means of a device of the type of the register 16.

Enfin, l'invention n'est pas limitée au mode de réalisation représente et décrit ci-dessus mais en couvre toutes les variantes notamment en ce qui concerne la nature, structure ou agencement des moyens de chauffage, de circulation d'air, de régulation d'entrée et de sortie des divers flux et de contrôle de température et d'hygrométrie.  Finally, the invention is not limited to the embodiment shown and described above, but covers all variants thereof, in particular as regards the nature, structure or arrangement of the heating, air circulation, and regulation means. of input and output of the various flows and of control of temperature and hygrometry.

Claims (5)

REVENDICATIONS 1. Séchoir pour la déshydratation totale ou partielle de produits notamment alimentaires, caractérisé en ce qu'il comprend un tunnel de séchage allongé (1) dans lequel sont superposés horizontalement et alternés un certain nombre de tapis (T1 à T6) de convoyage des produits depuis l'entrée, a une extrémité du tunnel, sur le tapis supérieur (Tl),jusqu'à l'extrémité d'évacuation du tapis inférieur (T6), au moins deux circuits semi-indépendants de circulation d'air de séchage en boucles horizontales fermées superposées, chaque boucle comportant une trajectoire extérieure audit tunnel (1) et une trajectoire intérieure affectant un nombre déterminé de tapis, et étant munie de moyens de génération de chaleur (7,8), de moyens (11,12) d'introduction d'air neuf, de moyens (9,10) de circulation de l'air de séchage et de moyens (14,15) d'évacua- tion de l'air humide et en ce que lesdits circuits comportent des moyens (16) propres à régler un éventuel transfert d'air d'un circuit au circuit voisin, extérieurement au tunnel de séchage (1). 1. Drier for total or partial dehydration of products, in particular food products, characterized in that it comprises an elongated drying tunnel (1) in which a number of conveyor belts (T1 to T6) are superimposed horizontally and alternately from the entrance, at one end of the tunnel, on the upper belt (Tl), to the discharge end of the lower belt (T6), at least two semi-independent circuits for circulation of drying air in horizontal superimposed closed loops, each loop having a path external to said tunnel (1) and an internal path affecting a determined number of belts, and being provided with means for generating heat (7,8), means (11,12) d introduction of fresh air, means (9,10) for circulation of the drying air and means (14,15) for evacuating the humid air and in that said circuits include means ( 16) suitable for regulating any air transfer from one circuit to the neighboring circuit , outside the drying tunnel (1). 2.Séchoir suivant la revendication 1, caractérisé en ce qu'il comporte deux circuits en boucles parallèles horizontales fermées, délimités extérieurement à l'enceinte du tunnel 2.Drier according to claim 1, characterized in that it comprises two circuits in closed horizontal parallel loops, delimited outside the enclosure of the tunnel (1) par deux gaines horizontales superposées (4 et 5) adjacentes au tunnel et communiquant chacune à leurs deux extrémités avec l'intérieur du tunnel par des passages pratiqués dans la paroi latérale la) du tunnel, chaque gaine (4,5) comprenant un générateur de chaleur (7,8), un ventilateur (9,10), au moins un registre d'entrée d'air neuf (11,12), un dispositif d'évacuation à l'atmosphère de l'air humide (14,15) et des moyens de régulation et contrôle du générateur et du ventilateur par sonde hygrométrique (17) ou analogue. (1) by two superimposed horizontal sheaths (4 and 5) adjacent to the tunnel and each communicating at their two ends with the interior of the tunnel by passages made in the side wall 1a) of the tunnel, each sheath (4,5) comprising a heat generator (7,8), a fan (9,10), at least one fresh air inlet register (11,12), a device for evacuating humid air to the atmosphere ( 14, 15) and means for regulating and controlling the generator and the fan by hygrometric probe (17) or the like. 3. Séchoir suivant les revendications 1 et 2, caractérisé en ce que dans la cloison séparatrice (6) des deux gaines (4,5) est monté un registre (16) de transfert de flux d'air d'une gaine à l'autre réglable en position manuellement ou automatiquement.  3. Dryer according to claims 1 and 2, characterized in that in the partition (6) of the two ducts (4,5) is mounted a register (16) for transferring air flow from a duct to the other adjustable in position manually or automatically. 4. Séchoir suivant l'une des revendications 1 à 3, caractérisé en ce qu'il comporte un registre (3) d'introduction de produits sur les tapis inférieurs (T5,T6) afin de permettre un recyclage des produits ou une stérilisation, dans le dernier circuit ou etage du séchoir, de produits conditionnés. 4. Dryer according to one of claims 1 to 3, characterized in that it comprises a register (3) for introducing products onto the lower belts (T5, T6) in order to allow recycling of the products or sterilization, in the last circuit or stage of the dryer, packaged products. 5. Séchoir suivant l'une des revendications 1 à 4, caractérisé en ce que les tapis de convoyage (T1 à T6) ont des dimensions de perforations (20,22,24) différentes selon. 5. Dryer according to one of claims 1 to 4, characterized in that the conveyor belts (T1 to T6) have dimensions of perforations (20,22,24) different according to. le circuit ou étage auquel ils appartiennenent, lesdites perforations allant en décrois-sant en taille depuis l'étage d'introduction des produits jusqu'à l'étage d'évacuation. the circuit or stage to which they belong, said perforations going decreasing in size from the product introduction stage to the evacuation stage.
FR8222162A 1982-12-29 1982-12-29 VERSATILE DRYER FOR TOTAL OR PARTIAL DEHYDRATION OF PARTICULARLY FOOD PRODUCTS Expired FR2538887B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8222162A FR2538887B1 (en) 1982-12-29 1982-12-29 VERSATILE DRYER FOR TOTAL OR PARTIAL DEHYDRATION OF PARTICULARLY FOOD PRODUCTS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8222162A FR2538887B1 (en) 1982-12-29 1982-12-29 VERSATILE DRYER FOR TOTAL OR PARTIAL DEHYDRATION OF PARTICULARLY FOOD PRODUCTS

Publications (2)

Publication Number Publication Date
FR2538887A1 true FR2538887A1 (en) 1984-07-06
FR2538887B1 FR2538887B1 (en) 1986-06-27

Family

ID=9280739

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8222162A Expired FR2538887B1 (en) 1982-12-29 1982-12-29 VERSATILE DRYER FOR TOTAL OR PARTIAL DEHYDRATION OF PARTICULARLY FOOD PRODUCTS

Country Status (1)

Country Link
FR (1) FR2538887B1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2605850A1 (en) * 1986-11-05 1988-05-06 Auximat Levage Sa OVEN FOR THE TREATMENT OF FRUITS, PARTICULARLY FOR THE PROCESSING OF GREEN PRUNES INTO PRUNES BY DESSICATION
EP0284710A2 (en) * 1987-03-31 1988-10-05 REGGIANI MACCHINE S.p.A. Apparatus for the drying and heat-fixing of fabrics and the like by means of high-temperature air circulation within a tunnel with a plurality of curing chambers
WO1995001540A1 (en) * 1993-06-30 1995-01-12 Baggio Tecnologie S.R.L. Improved drier for the continuous drying and conditioning treatment of hides or fabrics
EP0575396B1 (en) * 1991-03-21 1995-06-14 PAVAN MAPIMPIANTI S.p.A. Process for continuously drying and stabilizing pasta and the like, and apparatus for implementing the process
ES2128945A1 (en) * 1996-07-19 1999-05-16 Martinez Cesareo Abellan Improvements to machines for drying vegetables
FR2779912A1 (en) * 1998-06-19 1999-12-24 Vegafruits Partial drying and cooking of plums
ES2153285A1 (en) * 1998-06-11 2001-02-16 Seica E Hijos S L Vegetable products dryer with two conveyor belts includes two independent chambers with a hot dry air generator and suction fans
NL1029933C2 (en) * 2005-09-12 2007-03-13 Stork Townsend Bv Device for treating elongated food products with a conditioned air stream.
ITMI20081883A1 (en) * 2008-10-24 2010-04-25 Sinteco Impianti S R L EQUIPMENT FOR PASTEURIZATION, COOKING AND DRYING OF PACKAGED AND NOT FOOD PRODUCTS.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1723917A (en) * 1926-02-01 1929-08-06 B F Sturtevant Co Apron drier
US2395933A (en) * 1943-01-26 1946-03-05 Freeman M Mcbeth Drying apparatus
FR2401393A1 (en) * 1977-08-24 1979-03-23 Aquitaine Union Tech DRYING UNIT

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1723917A (en) * 1926-02-01 1929-08-06 B F Sturtevant Co Apron drier
US2395933A (en) * 1943-01-26 1946-03-05 Freeman M Mcbeth Drying apparatus
FR2401393A1 (en) * 1977-08-24 1979-03-23 Aquitaine Union Tech DRYING UNIT

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2605850A1 (en) * 1986-11-05 1988-05-06 Auximat Levage Sa OVEN FOR THE TREATMENT OF FRUITS, PARTICULARLY FOR THE PROCESSING OF GREEN PRUNES INTO PRUNES BY DESSICATION
WO1988003366A1 (en) * 1986-11-05 1988-05-19 S.A. Auximat Levage Fruit processing oven, particularly for the desiccation of unripe plums to produce prunes
EP0271376A1 (en) * 1986-11-05 1988-06-15 S.A. Auximat Levage Kiln for the treatment of fruits, especially for processing green plums into pruns by drying
US4987688A (en) * 1986-11-05 1991-01-29 Auximat-Levage Fruit-processing oven, particularly for converting raw plums into prunes by desiccation
EP0284710A2 (en) * 1987-03-31 1988-10-05 REGGIANI MACCHINE S.p.A. Apparatus for the drying and heat-fixing of fabrics and the like by means of high-temperature air circulation within a tunnel with a plurality of curing chambers
EP0284710A3 (en) * 1987-03-31 1989-01-18 REGGIANI MACCHINE S.p.A. Apparatus for the drying and heat-fixing of fabrics and the like by means of high-temperature air circulation within a tunnel with a plurality of curing chambers
US5473825A (en) * 1991-03-21 1995-12-12 Pavan Mapimpianti S.P.A. Process for continuously drying and stabilizing pasta and the like, and apparatus for implementing the process
EP0575396B1 (en) * 1991-03-21 1995-06-14 PAVAN MAPIMPIANTI S.p.A. Process for continuously drying and stabilizing pasta and the like, and apparatus for implementing the process
WO1995001540A1 (en) * 1993-06-30 1995-01-12 Baggio Tecnologie S.R.L. Improved drier for the continuous drying and conditioning treatment of hides or fabrics
US5537758A (en) * 1993-06-30 1996-07-23 Baggio Tecnologie Srl Drier for the continuous drying and conditioning treatment of hides fabrics
ES2128945A1 (en) * 1996-07-19 1999-05-16 Martinez Cesareo Abellan Improvements to machines for drying vegetables
ES2153285A1 (en) * 1998-06-11 2001-02-16 Seica E Hijos S L Vegetable products dryer with two conveyor belts includes two independent chambers with a hot dry air generator and suction fans
FR2779912A1 (en) * 1998-06-19 1999-12-24 Vegafruits Partial drying and cooking of plums
NL1029933C2 (en) * 2005-09-12 2007-03-13 Stork Townsend Bv Device for treating elongated food products with a conditioned air stream.
WO2007032679A1 (en) * 2005-09-12 2007-03-22 Stork Townsend B.V. Device for treating elongate food products with a conditioned airflow
US8474373B2 (en) 2005-09-12 2013-07-02 Stork Townsend B.V. Device for treating elongate food products with a conditioned airflow
ITMI20081883A1 (en) * 2008-10-24 2010-04-25 Sinteco Impianti S R L EQUIPMENT FOR PASTEURIZATION, COOKING AND DRYING OF PACKAGED AND NOT FOOD PRODUCTS.

Also Published As

Publication number Publication date
FR2538887B1 (en) 1986-06-27

Similar Documents

Publication Publication Date Title
US4424634A (en) Modular column dryer for particulate material
US4423557A (en) Gravity flow dryer for particulate material having channelized discharge
EP0277046B1 (en) Process for drying finely distributed materials, in particular cereals, and apparatus for carrying out the process
FR2538887A1 (en) Versatile dryer permitting the total or partial dehydration of products, in particular food products
RU2117431C1 (en) Apparatus for gas treatment of products
WO2018099850A1 (en) Oven for continuous elimination of phytosanitary pests present in organic particles of plant origin
US2361151A (en) Cooker and dehydrator
US5396716A (en) Jet tube dryer with independently controllable modules
KR200395889Y1 (en) Tunnel challenge interrogate agricultural products drier
US4398356A (en) Multi-stage dryer for particulate material
KR101541963B1 (en) Energy-saving Dryer capsicum
EP0051008B1 (en) Process for the slowly deferred continuous cooling of grain
US4402302A (en) Air heating apparatus
FR2883068A1 (en) Product e.g. granular material product, treating apparatus, has secondary chamber communicating unidirectionally with main chamber which treats products, suction unit controlling atmospheric pressure of main chamber, and logic control unit
EP0066661A1 (en) Apparatus for drying webs by hot air while simultaneously supporting the material, e.g. for paper webs delivered by a printing machine
KR100578030B1 (en) Stationary far infrared dry system
EP0068734A2 (en) Multi-stage particulate material dryer having channelized discharge
CN112629193B (en) Negative pressure type bamboo drying machine
FR2546618A1 (en) Atmospheric drier with reversible air circulation
FR2566106A1 (en) Process and plant for drying by blowing air with percussion for fruits and vegetables
FR2563327A1 (en) Installation for drying products by heat exchange with a drying fluid
FR2480922A1 (en) Continuous flow fruit drying chamber - uses two section heating system with final condition controlled by operation of second section
EP0381569B1 (en) Cereal dryer and use of same in drying different types of cereals
KR102024210B1 (en) Agricultural product Dryer
FR2588068A1 (en) Conveyor-belt dryer

Legal Events

Date Code Title Description
ST Notification of lapse