EP1300643A2 - Movable enclosure for drying wood - Google Patents

Movable enclosure for drying wood Download PDF

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Publication number
EP1300643A2
EP1300643A2 EP02366007A EP02366007A EP1300643A2 EP 1300643 A2 EP1300643 A2 EP 1300643A2 EP 02366007 A EP02366007 A EP 02366007A EP 02366007 A EP02366007 A EP 02366007A EP 1300643 A2 EP1300643 A2 EP 1300643A2
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EP
European Patent Office
Prior art keywords
air
load
drying
technical module
enclosure
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
EP02366007A
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German (de)
French (fr)
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EP1300643B1 (en
EP1300643A3 (en
Inventor
Claude Bertrand
Marc Bertrand
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Sa Des 3a
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Sa Des 3a
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Publication of EP1300643A3 publication Critical patent/EP1300643A3/en
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Publication of EP1300643B1 publication Critical patent/EP1300643B1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/06—Chambers, containers, or receptacles
    • F26B25/066—Movable chambers, e.g. collapsible, demountable
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/008—Seals, locks, e.g. gas barriers or air curtains, for drying enclosures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2210/00—Drying processes and machines for solid objects characterised by the specific requirements of the drying good
    • F26B2210/16—Wood, e.g. lumber, timber

Definitions

  • the present invention relates to a device for pre-drying and / or drying of various materials, for example pieces of wood.
  • Wood pre-drying and drying operations are traditionally performed in the open air and therefore require a very long time.
  • the object of the invention is to propose a solution to this problem.
  • the air inlet (s) are placed at the bottom and laterally on the technical module, the air outlet (s) are placed on top of said module and the deformable sheath extends horizontally and longitudinally above the load so that apply pressure and seal on the upper surface of the load while the vertical walls of the enclosure serve as air return.
  • a drying device called cell (1) for the sake of simplification includes in a chamber (2) a drying chamber (3) proper in which is installed the load (4) of material to be dried and a technical module (5).
  • the primary objective is to produce a device that can be transported on the road and / or on railroad
  • the first constraints of the invention are constraints dimensional i.e. maximum height, length and width not to be exceeded and must remain below those imposed by road transport standards and / or rail.
  • the first difficulty to solve is therefore to achieve in a volume of dimensions imposed air circulation, as regular as possible, between and around objects to be dried, while keeping the largest possible capacity vis-à-vis said objects to be dried.
  • the simplest optimal shape of the enclosure (2) is the shape parallelepiped, although not mandatory.
  • the enclosure (2) can for example be produced from the structure of a refrigerated trailer, it can also be specially designed for drying destination according to the characteristics of this application for patent, it may or may not have wheels so as to be directly mobile or to be placed on a mobile platform.
  • the best possible arrangement for an air supply duct (11) connected at the output (7) of the technical module is the longitudinal arrangement in order to distribute the air as regularly as possible along the stacks of planks (8).
  • the border (17) is pivotally mounted with elastic return so that said rigid face can be retracted during loading and automatically return to its tilted position whereby the flexible wall applies to seal, its optimal inclination ⁇ is then between 40 and 60 °.
  • the sheath (11) is provided as close as possible to one of the lateral faces of the enclosure to reduce pressure losses, it extends over the entire length of the enclosure, and it is tightly connected to the air outlets (7) from the technical module.
  • the drying air after leaving the sheath 11, circulates between the boards or other objects, crosses the enclosure and is taken up by the air intakes (6) of the module technique arranged at the bottom of it.
  • the cell (1) is provided with one or more movable fronts on pivots or on rails on its two largest sides to allow front loading of great length and location of the technical module,
  • thermodynamic unit capable of allowing the temperature to rise (as example 50 ° C) by one or more electrical resistances; maintaining said temperature being ensured by energy recycling and put by the condenser of the compressor in dehumidification.
  • the temperature and humidity are managed by a hygrostat type regulator and thermostat, their probes are positioned in the cell,
  • Said probes placed regularly and judiciously along the length of the cell and allow the homogeneity of the air in the enclosure by means of one or several laminar flow and variable speed turbines to overcome disadvantages of the length of the cell.
  • the dehydrator of the technical module is composed of a refrigeration compressor, an evaporator-type exchanger in stainless materials, with a reduced exchange surface (for example: dimension of the exchanger length 600 mm 400 mm width 30 mm thick).
  • Said exchanger being equipped with high-efficiency stainless tubes, provided of stainless blades around their edges to avoid any corrosion with acids (with tanic acid).
  • the dehydrator being equipped with a second exchanger for the sub cooling of refrigerant gases which allows the energy emitted by the compressor in recycling having, for example, a closed U shape and respecting the different condensation temperatures as well as the air flow rates at least one tangential turbine for the dehydrator, in order to reduce the maximum size, weight, noise while having a large air flow.
  • This air flow being managed at its outlet from the dehydrator by a set of ducts flexible to prevent crushing (example: textile sheath, memory plastic), air can thus be regularly distributed on each variable speed turbine and at laminar flow located at the top point of the cell along the rigid wall of the sheath (wall made in one or more sections).
  • the temperature which may exceed the setpoint due to condensation is managed by a thermostat located in recovery controlling a turbine injecting air external overpressure in the dehydrator at the trap heat exchanger humidity, the additional volume of air injected or expanded being managed by one or several flaps opening on their own weight in proportion to the pressure exerted on their blades to desaturate the atmosphere of the enclosure if necessary for example for the treatment of delicate woods.
  • the walls of the enclosure are made of insulating material (for example: polyurethane foam and plastic panels).
  • the set can be maintained with metal frames and crutches stabilizers on a platform (by way of nonlimiting example, the cell will have dimensions of the order of 2.5 m for the width and for the height of 2.6 m and for the length of 13.50 m) these dimensions do not take into account a possible train of rolling.
  • the device according to the invention is particularly intended for pre-drying and drying of woody materials (such as textile wood, etc.) or others.
  • Provision on request is quick, (for example: a hour for example) as on natural disaster production sites, floods or any other conditions.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Abstract

The mobile drier consists of a drying chamber (3) to receive the material to be dried and a technical module with an air drier and ventilator between an intake and an outlet. The technical module and drying chamber are assembled in a single housing which has a duct (11) connected to the output of the technical module, the duct being partly deformable and inflatable by the pressure of air (21) passing through it, and partly rigid to direct the air through outlets (12) towards one of the chamber's walls, which are made from an insulating material.

Description

La présente invention concerne un dispositif pour le pré-séchage et/ou le séchage de divers matériaux, par exemple des pièces de bois.The present invention relates to a device for pre-drying and / or drying of various materials, for example pieces of wood.

Les opérations de pré-séchage et de séchage du bois sont traditionnellement effectuées à l'air libre et nécessitent par conséquent une durée très longue.Wood pre-drying and drying operations are traditionally performed in the open air and therefore require a very long time.

Elles peuvent être réalisées sur site et sous abris ou bien réalisées par des sous-traitants sur d'autres sites, ce qui implique de régler des problèmes de transport, gestion de stockage, manutention et concurrence (en raison du monopole des possesseurs d'installation de séchage en gros volumes fixés).They can be carried out on site and under shelter or else carried out by subcontractors on other sites, which involves solving problems of transport, storage management, handling and competition (due to the monopoly owners of fixed-volume drying installations).

Pour pallier ces inconvénients certains utilisateurs, ayant des besoins annuels de séchage, ont investi dans des enceintes de séchage fixes et non démontables mais leurs principaux inconvénients sont une durée très longue de rentabilité et la nécessité d'une exploitation continue.To overcome these drawbacks, some users with annual needs have invested in fixed and non-removable drying chambers but their main disadvantages are a very long period of profitability and the need for continuous operation.

A ce jour, il n'existe aucune solution aux problèmes de l'art antérieur pour des utilisations occasionnelles et/ou des déplacements sur site de production.To date, there is no solution to the problems of the prior art for occasional use and / or travel to the production site.

Le but de l'invention est de proposer une solution à ce problème.The object of the invention is to propose a solution to this problem.

Ce but est atteint par l'invention qui consiste en un dispositif pour le pré-séchage et/ou le séchage d'un chargement d'objets, par exemple un chargement de pièces de bois, du type comportant une chambre de séchage dans laquelle est placé le chargement d'objets à sécher, un module technique comportant au moins des moyens de séchage d'air et de ventilation ainsi qu'au moins une entrée de reprise d'air et au moins une sortie d'air de séchage, caractérisé en ce que le module technique est placé à une extrémité de la chambre de séchage et dans la même enceinte, de manière que pendant une opération de séchage , l'air de séchage issu de la ou des sorties d'air soit :

  • conduit par une gaine déformable venant faire pression et étanchéité sur une surface du chargement,
  • distribué en flux réguliers répartis le long dudit chargement,
  • renvoyé par une paroi de l'enceinte vers le chargement de manière à le traverser ou à le parcourir puis,
  • renvoyé à nouveau par une autre paroi de l'enceinte pour pouvoir être repris par la ou les reprises d'air du module technique en l'absence de toute gaine ou canalisation.
This object is achieved by the invention which consists of a device for pre-drying and / or drying a load of objects, for example a load of pieces of wood, of the type comprising a drying chamber in which is placed the load of objects to be dried, a technical module comprising at least air drying and ventilation means as well as at least one air intake inlet and at least one drying air outlet, characterized in the technical module is placed at one end of the drying chamber and in the same enclosure, so that during a drying operation, the drying air coming from the air outlet (s) is:
  • driven by a deformable sheath coming to pressurize and seal on a surface of the load,
  • distributed in regular flows distributed along said load,
  • returned by a wall of the enclosure towards the load so as to cross it or to traverse it then,
  • returned again by another wall of the enclosure in order to be able to be taken up by the air intake (s) of the technical module in the absence of any sheath or pipe.

Selon une variante préférée de mise en oeuvre la ou les entrées d'air sont placées en bas et latéralement sur le module technique, la ou les sorties d'air sont placées sur le dessus dudit module et la gaine déformable s'étend horizontalement et longitudinalement au dessus du chargement de manière à venir faire pression et étanchéité sur la surface supérieure du chargement tandis que les parois verticales de l'enceinte servent de renvoi d'air.According to a preferred variant of implementation, the air inlet (s) are placed at the bottom and laterally on the technical module, the air outlet (s) are placed on top of said module and the deformable sheath extends horizontally and longitudinally above the load so that apply pressure and seal on the upper surface of the load while the vertical walls of the enclosure serve as air return.

On comprendra mieux l'invention à l'aide de la description ci-après faite en référence aux figures annexées suivantes :

  • figure 1 : vue schématique d'ensemble d'une chambre de séchage selon l'invention,
  • figure 2 : coupe verticale transversale d'une chambre de la figure 1,
  • figure 3 : coupe verticale longitudinale d'une cellule selon l'invention avec la chambre de séchage proprement dite selon la figure 1 et le module technique de séchage disposé à une extrémité.
The invention will be better understood using the description below made with reference to the following appended figures:
  • FIG. 1: schematic overall view of a drying chamber according to the invention,
  • FIG. 2: vertical transverse section of a chamber in FIG. 1,
  • Figure 3: longitudinal vertical section of a cell according to the invention with the actual drying chamber according to Figure 1 and the drying technical module disposed at one end.

Un dispositif de séchage selon l'invention, appelé cellule (1) par souci de simplification comporte dans une enceinte (2) une chambre de séchage (3) proprement dite dans laquelle est installée la charge (4) de matériau à sécher et un module technique (5).A drying device according to the invention, called cell (1) for the sake of simplification includes in a chamber (2) a drying chamber (3) proper in which is installed the load (4) of material to be dried and a technical module (5).

L'objectif premier étant de réaliser un dispositif transportable sur route et/ou sur voie ferrée, les premières contraintes de l'invention sont des contraintes dimensionnelles à savoir hauteur, longueur et largeur maximales à ne pas dépasser et devant rester inférieures à celles imposées par des normes de transport routier et/ou ferroviaire.The primary objective is to produce a device that can be transported on the road and / or on railroad, the first constraints of the invention are constraints dimensional i.e. maximum height, length and width not to be exceeded and must remain below those imposed by road transport standards and / or rail.

La première difficulté à résoudre est donc de réaliser dans un volume de dimensions imposées une circulation d'air, la plus régulière possible, entre et autour des objets à sécher, tout en conservant la plus grande capacité possible vis à vis desdits objets à sécher.The first difficulty to solve is therefore to achieve in a volume of dimensions imposed air circulation, as regular as possible, between and around objects to be dried, while keeping the largest possible capacity vis-à-vis said objects to be dried.

La forme optimale la plus simple de l'enceinte (2) est la forme parallélépipédique, bien que non obligatoire.The simplest optimal shape of the enclosure (2) is the shape parallelepiped, although not mandatory.

L'enceinte (2) peut par exemple être réalisée à partir de la structure d'une remorque frigorifique, elle peut également être spécialement conçue pour la destination de séchage selon les caractéristiques de la présente demande de brevet, elle peut comporter ou non des roues de façon à être directement mobile ou à être placée sur une plateforme mobile.The enclosure (2) can for example be produced from the structure of a refrigerated trailer, it can also be specially designed for drying destination according to the characteristics of this application for patent, it may or may not have wheels so as to be directly mobile or to be placed on a mobile platform.

Afin de gagner le plus possible en capacité de séchage l'idée inventive a consisté à concevoir un circuit de circulation nécessitant le moins possible de canaux ou tubulures de circulation.In order to gain as much drying capacity as possible the inventive idea has consisted in designing a circulation circuit requiring as little as possible circulation channels or pipes.

Pour atteindre la solution, l'idée a ensuite consisté à placer le module technique (5) à l'intérieur même de l'enceinte (2) et à utiliser les parois de ladite enceinte comme renvois d'air de séchage. To reach the solution, the idea then consisted in placing the technical module (5) inside the enclosure (2) and to use the walls of said enclosure as drying air return.

Cela a conduit à prévoir dans l'enceinte une chambre de séchage (3) proprement dite avec en extrémité un module technique contenant le ou les échangeurs-déshydrateur d'air.This led to the provision of a drying chamber in the enclosure (3) proper with a technical module at the end containing the air exchanger-dehydrator.

Afin d'optimiser encore la disposition relative chambre-module technique et gagner en longueur de stockage on prévoit de placer une ou des reprises d'air humide (6) sur le côté du module technique et de placer une ou des sorties d'air (7) sec et réchauffé sur le dessus dudit module.In order to further optimize the relative room-technical module layout and gain in storage length we plan to place one or more air inlets wet (6) on the side of the technical module and place one or more air outlets (7) dry and warmed on top of said module.

Les objets ou matériau à sécher présentés à titre d'exemple sur les figures sont des planches de bois (8) séparées par des plots (9).The objects or material to be dried presented by way of example in the figures are wooden planks (8) separated by studs (9).

La meilleure disposition possible pour une gaine (11) de soufflage d'air raccordée en sortie (7) du module technique est la disposition longitudinale afin de répartir l'air le plus régulièrement possible le long des empilements de planches (8).The best possible arrangement for an air supply duct (11) connected at the output (7) of the technical module is the longitudinal arrangement in order to distribute the air as regularly as possible along the stacks of planks (8).

A ce stade un nouveau problème devait être résolu.At this point a new problem had to be solved.

En effet, s'il paraít simple de répartir les flux d'air (10) régulièrement le long de la gaine (11) au moyen d'ouies (12) calculables par l'homme du métier, il fallait trouver le moyen de forcer les flux (10) à glisser le long d'une des parois verticales(13) de l'enceinte et à s'infiltrer entre les planches (8), c'est à dire qu'il fallait trouver le moyen d'empêcher tout passage d'air entre la gaine (11) et la partie supérieure (14) du chargement.Indeed, if it seems simple to distribute the air flows (10) regularly along the sheath (11) by means of gills (12) calculable by the skilled person, it was necessary find a way to force the flows (10) to slide along one of the walls vertical (13) of the enclosure and to infiltrate between the boards (8), that is to say that it had to find a way to prevent any passage of air between the sheath (11) and the part top (14) of the load.

La solution à ce problème est de concevoir une gaine qui est à la fois :

  • gonflable et déformable pour que sous l'effet de la pression de l'air (15) issu du module technique, elle s'adapte à la conformation de la partie supérieure (14) du chargement et fasse étanchéité à l'air,
  • et rigide pour que les ouies dirigent les flux d'air (10) vers une des parois de l'enceinte par exemple la paroi verticale (13) qui fait alors office de réflecteur.
The solution to this problem is to design a sheath which is both:
  • inflatable and deformable so that under the effect of the air pressure (15) from the technical module, it adapts to the conformation of the upper part (14) of the load and is airtight,
  • and rigid so that the gills direct the air flows (10) towards one of the walls of the enclosure, for example the vertical wall (13) which then acts as a reflector.

Conformément à l'invention la gaine (11) comporte

  • une face en matériau rigide (15) comportant une pluralité d'ouies (12) et fixée en sous face du toit de l'enceinte par une de ses bordures (17) et inclinée d'un angle prédéterminé α par rapport au dit toit (16)
  • une paroi souple (20) fixée d'une part sur l'autre bordure (18) de la paroi rigide et, d'autre part, en sous face du toit et à une distance prédéterminée (19) de la bordure (17) de la face rigide.
According to the invention the sheath (11) comprises
  • a face made of rigid material (15) comprising a plurality of gills (12) and fixed on the underside of the enclosure roof by one of its edges (17) and inclined at a predetermined angle α relative to said roof ( 16)
  • a flexible wall (20) fixed on the one hand to the other edge (18) of the rigid wall and, on the other hand, on the underside of the roof and at a predetermined distance (19) from the edge (17) of the rigid face.

Préférentiellement la bordure (17) est montée pivotante avec retour élastique de façon à ce que ladite face rigide puisse être escamotée pendant le chargement et revenir automatiquement à sa position inclinée selon laquelle la paroi souple s'applique pour faire étanchéité, son inclinaison optimale α est alors comprise entre 40 et 60°.Preferably the border (17) is pivotally mounted with elastic return so that said rigid face can be retracted during loading and automatically return to its tilted position whereby the flexible wall applies to seal, its optimal inclination α is then between 40 and 60 °.

Préférentiellement, la gaine (11) est prévue le plus près possible d'une des faces latérales de l'enceinte pour diminuer les pertes de charge, elle s'étend sur toute la longueur de l'enceinte, et elle est raccordée de façon étanche à la ou aux sorties d'air (7) du module technique.Preferably, the sheath (11) is provided as close as possible to one of the lateral faces of the enclosure to reduce pressure losses, it extends over the entire length of the enclosure, and it is tightly connected to the air outlets (7) from the technical module.

L'air de séchage, après sa sortie de la gaine 11, circule entre les planches ou autres objets, traverse l'enceinte et il est repris par les reprises d'air (6) du module technique disposées en bas de celui-ci.The drying air, after leaving the sheath 11, circulates between the boards or other objects, crosses the enclosure and is taken up by the air intakes (6) of the module technique arranged at the bottom of it.

On décrit encore à titre d'exemple divers aménagements préférentiels pouvant être remplacés par des équivalents techniques :Various preferential arrangements can also be described by way of example. be replaced by technical equivalents:

La cellule (1) est munie d'une ou plusieurs façades mobiles sur pivots ou sur rails sur ses deux plus grands côtés afin de permettre les chargements frontaux de grande longueur et l'emplacement du module technique,The cell (1) is provided with one or more movable fronts on pivots or on rails on its two largest sides to allow front loading of great length and location of the technical module,

Ce module technique permet l'extraction de l'humidité et il est pourvu d'une unité thermo-dynamique pouvant permettre la montée en température (à titre d'exemple 50°C) par une ou plusieurs résistances électriques ; le maintien de la dite température étant assuré par recyclage de l'énergie et mise par le condenseur du compresseur en déshumidification.This technical module allows the extraction of moisture and it is provided with a thermodynamic unit capable of allowing the temperature to rise (as example 50 ° C) by one or more electrical resistances; maintaining said temperature being ensured by energy recycling and put by the condenser of the compressor in dehumidification.

La température et l'hygrométrie sont gérées par un régulateur de type hygrostat et thermostat, leurs sondes sont positionnées dans la cellule,The temperature and humidity are managed by a hygrostat type regulator and thermostat, their probes are positioned in the cell,

Lesdites sondes placées régulièrement et judicieusement sur la longueur de la cellule et permettent l'homogénéabilité de l'air dans l'enceinte au moyen d'une ou plusieurs turbines à flux laminaires et à vitesse variable pour pallier aux inconvénients de la longueur de la cellule.Said probes placed regularly and judiciously along the length of the cell and allow the homogeneity of the air in the enclosure by means of one or several laminar flow and variable speed turbines to overcome disadvantages of the length of the cell.

Selon un mode particulier de réalisation, le déshydrateur du module technique est composé d'un compresseur frigorifique, d'un échangeur type évaporateur en matériaux inoxydables, d'une surface d'échange réduit (à titre d'exemple : dimension de l'échangeur longueur 600 mm 400 mm largeur 30 mm d'épaisseur).According to a particular embodiment, the dehydrator of the technical module is composed of a refrigeration compressor, an evaporator-type exchanger in stainless materials, with a reduced exchange surface (for example: dimension of the exchanger length 600 mm 400 mm width 30 mm thick).

Ce dit échangeur étant équipé de tubes inoxydables à haut rendement, munis de lames inoxydables sur leurs pourtours afin d'éviter toute corrosion aux acides (à titre d'exemple l'acide tanique).Said exchanger being equipped with high-efficiency stainless tubes, provided of stainless blades around their edges to avoid any corrosion with acids (with tanic acid).

Le déshydrateur étant équipé d'un deuxième échangeur pour le sous refroidissement des gaz frigorifiques ce qui permet de réutiliser l'énergie émise par le compresseur en recyclage ayant, par exemple, une forme en U fermé et respectant les différentes températures de condensation ainsi que les débits d'air d'au moins une turbine tangentielle pour le déshydrateur, afin de réduire au maximum l'encombrement, le poids, le bruit tout en ayant un débit d'air important.The dehydrator being equipped with a second exchanger for the sub cooling of refrigerant gases which allows the energy emitted by the compressor in recycling having, for example, a closed U shape and respecting the different condensation temperatures as well as the air flow rates at least one tangential turbine for the dehydrator, in order to reduce the maximum size, weight, noise while having a large air flow.

Ce débit d'air étant géré à sa sortie du déshydrateur par un ensemble de gaines souples afin d'éviter tout écrasement (exemple : gaine textile, plastique à mémoire), l'air peut être ainsi diffusé régulièrement sur chaque turbine à vitesse variable et à flux laminaire situées en point haut de la cellule le long de la paroi rigide de la gaine (paroi réalisée en un ou plusieurs tronçons).This air flow being managed at its outlet from the dehydrator by a set of ducts flexible to prevent crushing (example: textile sheath, memory plastic), air can thus be regularly distributed on each variable speed turbine and at laminar flow located at the top point of the cell along the rigid wall of the sheath (wall made in one or more sections).

La température pouvant dépasser la consigne du fait de la condensation est gérée par un thermostat situé en reprise commandant une turbine injectant de l'air extérieur en surpression dans le déshydrateur au niveau de l'échangeur piège à humidité, le surcroít de volume d'air injecté ou dilaté étant géré lui par un ou plusieurs volets s'ouvrant sur leur propre poids en proportion de la pression exercée sur leurs lames pour désaturer l'atmosphère de l'enceinte si nécessaire par exemple pour le traitement de bois délicats.The temperature which may exceed the setpoint due to condensation is managed by a thermostat located in recovery controlling a turbine injecting air external overpressure in the dehydrator at the trap heat exchanger humidity, the additional volume of air injected or expanded being managed by one or several flaps opening on their own weight in proportion to the pressure exerted on their blades to desaturate the atmosphere of the enclosure if necessary for example for the treatment of delicate woods.

Les parois de l'enceinte sont réalisées en matière isolante (à titre d'exemple : mousse polyuréthane et panneaux plastiques).The walls of the enclosure are made of insulating material (for example: polyurethane foam and plastic panels).

L'ensemble peut être maintenu avec des armatures métalliques et des béquilles stabilisatrices sur une plate-forme (à titre d'exemple non limitatif la cellule aura des dimensions de l'ordre de 2.5 m pour la largeur et pour la hauteur de 2.6 m et pour la longueur de 13.50 m) ces dimensions ne tiennent pas compte d'un éventuel train de roulement.The set can be maintained with metal frames and crutches stabilizers on a platform (by way of nonlimiting example, the cell will have dimensions of the order of 2.5 m for the width and for the height of 2.6 m and for the length of 13.50 m) these dimensions do not take into account a possible train of rolling.

Le dispositif selon l'invention est particulièrement destiné au pré-séchage et séchage de matériaux ligneux (comme par exemple : le bois textile, etc) ou autres.The device according to the invention is particularly intended for pre-drying and drying of woody materials (such as textile wood, etc.) or others.

La mise à disposition sur simple demande est rapide, (à titre d'exemple : une heure par exemple) comme sur les sites de productions catastrophes naturelles, les inondations ou toutes autres conditions.Provision on request is quick, (for example: a hour for example) as on natural disaster production sites, floods or any other conditions.

Ce type de sécheur mobile et déplaçable n'existant pas à ce jour permet une utilisation dans des demandes ponctuelles et problématiques, et directement sur site.This type of mobile and movable dryer which does not exist to date allows a use in ad hoc and problematic requests, and directly on site.

Claims (9)

Dispositif pour le pré-séchage et/ou le séchage d'un chargement d'objets, par exemple un chargement de pièces de bois, du type comportant une chambre de séchage (3) dans laquelle est placé le chargement d'objets à sécher, un module technique (5) comportant au moins des moyens de séchage d'air et de ventilation ainsi qu'au moins une entrée de reprise d'air (6) et au moins une sortie (7) d'air de séchage, caractérisé en ce que le module technique (5) et la chambre de séchage (3) sont placés dans la même enceinte (2) qui comporte une gaine (11) de soufflage d'air raccordée en sortie (7) du module technique qui est : pour partie gonflable et déformable pour que, sous l'effet de la pression de l'air (21) issu du module technique, elle s'adapte à la conformation d'une surface du chargement, et pour partie rigide pour diriger l'air sortant d'une pluralité d'ouies vers une des parois de l'enceinte utilisée comme renvoi d'air. Device for pre-drying and / or drying a load of objects, for example a load of pieces of wood, of the type comprising a drying chamber (3) in which is placed the load of objects to be dried, a technical module (5) comprising at least air drying and ventilation means as well as at least one air intake inlet (6) and at least one drying air outlet (7), characterized in that the technical module (5) and the drying chamber (3) are placed in the same enclosure (2) which comprises a duct (11) for blowing air connected at the outlet (7) of the technical module which is: partly inflatable and deformable so that, under the effect of the air pressure (21) from the technical module, it adapts to the conformation of a surface of the load, and for a rigid part for directing the air leaving a plurality of openings towards one of the walls of the enclosure used as air return. Dispositif selon la revendication 1, caractérisé en ce que la ou les entrées d'air (6) sont placées en bas et latéralement sur le module technique (5), la ou les sorties d'air (7) sont placées sur le dessus dudit module et la gaine déformable s'étend horizontalement et longitudinalement au dessus du chargement de manière à venir faire pression et étanchéité sur la surface supérieure (14) du chargement tandis que les parois verticales (13) et (13') de l'enceinte servent de renvoi d'air.Device according to claim 1, characterized in that the air inlet (s) (6) are placed at the bottom and laterally on the technical module (5), the air outlet (s) (7) are placed on top of said module and the deformable sheath extends horizontally and longitudinally above the load so as to pressurize and seal on the upper surface (14) of the load while the vertical walls (13) and (13 ') of the enclosure serve return air. Dispositif selon l'une des revendications 1 à 2, caractérisé en ce que la gaine déformable (11) comporte une face en matériau rigide (15) comportant une pluralité d'ouies (12) et fixée en sous face du toit de l'enceinte par une de ses bordures (17) et inclinée d'un angle prédéterminé α par rapport audit toit (16) une paroi souple (20) fixée d'une part sur l'autre bordure (18) de la paroi rigide et, d'autre part, en sous face du toit et à une distance prédéterminée (19) de la bordure (17) de la face rigide. Device according to one of claims 1 to 2, characterized in that the deformable sheath (11) comprises a face made of rigid material (15) comprising a plurality of louvers (12) and fixed on the underside of the enclosure roof by one of its edges (17) and inclined at a predetermined angle α relative to said roof (16 ) a flexible wall (20) fixed on the one hand to the other edge (18) of the rigid wall and, on the other hand, on the underside of the roof and at a predetermined distance (19) from the edge (17) of the rigid face. Dispositif selon la revendication 3, caractérisé en ce que la bordure (17) est montée pivotante avec retour élastique de façon à ce que ladite face rigide puisse être escamotée pendant le chargement et revenir automatiquement à sa position inclinée α selon laquelle la paroi souple s'applique sur le chargement pour faire étanchéité.Device according to claim 3, characterized in that the edge (17) is pivotally mounted with elastic return so that said rigid face can be retracted during loading and automatically return to its inclined position α in which the flexible wall s' applies to the load to seal. Dispositif selon l'une des revendications 3 à 4, caractérisé en ce que α est compris entre 40 et 60°.Device according to one of claims 3 to 4, characterized in that α is between 40 and 60 °. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que le module technique comporte au moins une unité thermo-dynamique avec déshydrateur et au moins une turbine à flux laminaire.Device according to one of claims 1 to 5, characterized in that the technical module comprises at least one thermodynamic unit with dehydrator and at least one laminar flow turbine. Dispositif selon la revendication 6, caractérisé en ce que le déshydrateur du module technique est composé d'un compresseur frigorifique, d'un échangeur type évaporateur en matériaux inoxydables, d'une surface d'échange réduit.Device according to claim 6, characterized in that the dehydrator of the technical module is composed of a refrigeration compressor, an exchanger type evaporator made of stainless materials, a reduced exchange surface. Dispositif selon la revendication 7, caractérisé en ce que le déshydrateur est équipé d'un deuxième échangeur pour le sous refroidissement des gaz frigorifiques ce qui permet de réutiliser l'énergie émise par le compresseur en recyclage.Device according to claim 7, characterized in that the dehydrator is equipped with a second exchanger for the sub-cooling of the refrigerating gases, which makes it possible to reuse the energy emitted by the compressor during recycling. Dispositif selon l'une des revendications 1 à 8, caractérisé en ce que l'enceinte peut être maintenue avec des armatures métalliques et des béquilles stabilisatrices sur une plate-forme.Device according to one of claims 1 to 8, characterized in that the enclosure can be maintained with metal reinforcements and stabilizing crutches on a platform.
EP02366007A 2001-10-08 2002-10-07 Movable enclosure for drying wood Expired - Lifetime EP1300643B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0112906A FR2830481B3 (en) 2001-10-08 2001-10-08 MOBILE WOOD DRYING CELL
FR0112906 2001-10-08

Publications (3)

Publication Number Publication Date
EP1300643A2 true EP1300643A2 (en) 2003-04-09
EP1300643A3 EP1300643A3 (en) 2006-06-21
EP1300643B1 EP1300643B1 (en) 2008-03-12

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EP02366007A Expired - Lifetime EP1300643B1 (en) 2001-10-08 2002-10-07 Movable enclosure for drying wood

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EP (1) EP1300643B1 (en)
AT (1) ATE389156T1 (en)
DE (1) DE60225519D1 (en)
FR (1) FR2830481B3 (en)

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FR2911393A1 (en) * 2007-01-16 2008-07-18 3A Soc Responsabilite Limitee Water based finishing product drying device for wood piece, has technical module and drying chamber located in same enclosure which has ceiling for blowing of air and for directing air towards bottom of enclosure for air recycling
FR2915272A1 (en) * 2007-04-18 2008-10-24 Groupe Solu Allience Sarl Closed enclosure ventilating device for use in kiln, has membrane modifying air circulation of outlet, where device is in form of tubular flexible sheath forming intake chamber on periphery of which evacuation openings are distributed
FR2919921A1 (en) * 2007-08-06 2009-02-13 Groupe Solu Allience Sarl Artificial pre-drying device for wood, has thermodynamic technical modules each positioned at floor/ceiling in enclosure and connected to exchanger positioned outside enclosure to use calorific exchange capacity of exterior air
CN103292589A (en) * 2013-06-03 2013-09-11 上海工程技术大学 Air flow guide and ventilation device for large hot air drying room
FR3023363A1 (en) * 2014-07-04 2016-01-08 Clauger RAPID COLD TUNNEL OF FOODSTUFFS LOADED ON PALLETS
CN107091562A (en) * 2017-03-27 2017-08-25 贵州大学 A kind of drying plant for mechanical workpieces
CN107398955A (en) * 2017-08-15 2017-11-28 广西河池市宜州梦若天蓝信息科技有限公司 A kind of waddy slicer
CN110171044A (en) * 2019-06-20 2019-08-27 南京林业大学 A kind of preparation method of multi-pore structure functional form wood substrate
CN111207577A (en) * 2020-01-10 2020-05-29 王海山 High-efficient type log drying equipment with prevent function of ftractureing

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109405432A (en) * 2018-09-17 2019-03-01 阜南县东方柳编工艺品有限公司 A kind of efficiently dehumidifying plank drying equipment

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US3299532A (en) * 1964-05-13 1967-01-24 Vaughn W Melikian Mobile dehydrator
WO1991013841A1 (en) * 1990-03-13 1991-09-19 Progetti S.R.L. Plant for drying sanitary appliances and moulds thereof
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DE19951634A1 (en) * 1998-12-29 2000-07-06 Wolf Systembau Gmbh & Co Kg Drying device for products containing moisture, e.g. wood, has all system components required for operation during drying accommodated on or in shaft between base plate and platform
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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2911393A1 (en) * 2007-01-16 2008-07-18 3A Soc Responsabilite Limitee Water based finishing product drying device for wood piece, has technical module and drying chamber located in same enclosure which has ceiling for blowing of air and for directing air towards bottom of enclosure for air recycling
FR2915272A1 (en) * 2007-04-18 2008-10-24 Groupe Solu Allience Sarl Closed enclosure ventilating device for use in kiln, has membrane modifying air circulation of outlet, where device is in form of tubular flexible sheath forming intake chamber on periphery of which evacuation openings are distributed
FR2919921A1 (en) * 2007-08-06 2009-02-13 Groupe Solu Allience Sarl Artificial pre-drying device for wood, has thermodynamic technical modules each positioned at floor/ceiling in enclosure and connected to exchanger positioned outside enclosure to use calorific exchange capacity of exterior air
CN103292589A (en) * 2013-06-03 2013-09-11 上海工程技术大学 Air flow guide and ventilation device for large hot air drying room
CN103292589B (en) * 2013-06-03 2015-04-01 上海工程技术大学 Air flow guide and ventilation device for large hot air drying room
FR3023363A1 (en) * 2014-07-04 2016-01-08 Clauger RAPID COLD TUNNEL OF FOODSTUFFS LOADED ON PALLETS
CN107091562A (en) * 2017-03-27 2017-08-25 贵州大学 A kind of drying plant for mechanical workpieces
CN107091562B (en) * 2017-03-27 2023-04-07 贵州大学 Drying equipment for mechanical workpiece
CN107398955A (en) * 2017-08-15 2017-11-28 广西河池市宜州梦若天蓝信息科技有限公司 A kind of waddy slicer
CN110171044A (en) * 2019-06-20 2019-08-27 南京林业大学 A kind of preparation method of multi-pore structure functional form wood substrate
CN110171044B (en) * 2019-06-20 2021-04-13 南京林业大学 Preparation method of functional wood base material with porous structure
CN111207577A (en) * 2020-01-10 2020-05-29 王海山 High-efficient type log drying equipment with prevent function of ftractureing

Also Published As

Publication number Publication date
DE60225519D1 (en) 2008-04-24
FR2830481B3 (en) 2003-11-21
EP1300643B1 (en) 2008-03-12
ATE389156T1 (en) 2008-03-15
FR2830481A1 (en) 2003-04-11
EP1300643A3 (en) 2006-06-21

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