EP3012565B1 - Drying tunnel for ceramic products - Google Patents

Drying tunnel for ceramic products Download PDF

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Publication number
EP3012565B1
EP3012565B1 EP15185921.2A EP15185921A EP3012565B1 EP 3012565 B1 EP3012565 B1 EP 3012565B1 EP 15185921 A EP15185921 A EP 15185921A EP 3012565 B1 EP3012565 B1 EP 3012565B1
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EP
European Patent Office
Prior art keywords
module
air
extraction
sheath
distribution
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EP15185921.2A
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German (de)
French (fr)
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EP3012565A1 (en
Inventor
Giovanni ZAMPARO
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Ceritherm
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Ceritherm
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
    • F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
    • F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
    • F26B15/18—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined the objects or batches of materials being carried by endless belts
    • 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
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/06—Chambers, containers, or receptacles
    • F26B25/08—Parts thereof
    • 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
    • F26B2210/02—Ceramic articles or ceramic semi-finished articles

Definitions

  • the invention relates to a drying tunnel for ceramic products.
  • EP2098811 discloses a drying module according to the preamble of claim 1.
  • An object of the invention is to provide a drying tunnel for ceramic products of small dimensions.
  • Another object of the invention is to provide a drying tunnel for ceramic products of variable length as needed.
  • Another object of the invention is to provide a drying tunnel for ceramic products whose ventilation structure is easily modifiable.
  • the invention relates to a drying tunnel module according to claim 1.
  • the annular sheaths have orifices adapted to ensure the flow of air in the module.
  • the orifices are distributed on the facing faces of the annular sheaths.
  • tubes are arranged between the annular sheaths to ensure the distribution or extraction of air in the module.
  • a tube has an open end, a closed end and a line of perforations extending from one end to the other.
  • a tube has its end open in an orifice of the distribution sheath, and its closed end in an orifice of the extraction sheath.
  • a tube has its open end in an orifice of the extraction sheath and its closed end in an orifice of the distribution sheath.
  • the module comprises a bottom and a top, articulated along a longitudinal line, the top pivoting on the line under the action of an actuator.
  • the annular sheaths consist of two parts, a part in the bottom of the module and another part in the top of the module.
  • the invention also relates to a drying tunnel for ceramic products arranged on a conveyance traveling through the tunnel from upstream to downstream, characterized in that it consists of modules of identical transverse dimensions.
  • the tunnel 1 for drying ceramic products consists of a series of modules 2 of identical transverse dimensions, juxtaposed and aligned.
  • the aligned modules 2 are all traversed by a transport means 3 which transports ceramic products 4 to be dried, from the upstream inlet to the downstream outlet of the tunnel 1.
  • the transport means 3 is designed to allow the drying air to pass through. through openings. It may consist of a perforated continuous band, a sheet of spaced belts parallel to the axis of the modules, a set of spaced crosspieces perpendicular to the axis of the modules, and connected by chains, a perforated belt or any other means. equivalent.
  • Each module 2 is equipped with individual means of ventilation and adjustment of temperature and humidity.
  • the drying of the ceramic products is ensured by exchange with an air controlled by the module, in temperature, humidity, and speed on the walls of the ceramic products.
  • All modules are of identical cross-sectional dimensions and individually configurable in terms of air quality (temperature and humidity) and ventilation speed. The modules can have different lengths.
  • Each module 2 consists of a bottom 5 and a top 6, articulated along a longitudinal line 7.
  • the module can be opened for the introduction of the transport means 3, the adaptation of the means of drying, and closed for carrying out tunnel drying.
  • the module 2 With respect to the direction of travel of the transport means 3, identified by the arrow 8, the module 2 has an upstream end 9 and a downstream end 10.
  • the module 2 comprises in the vicinity of its ends 9, 10, annular sheaths 11, 12, respectively, to ensure the flow of air in the module.
  • the annular sheath 11 which is upstream is a drying air extraction sheath.
  • Sheath annular 12 downstream is a drying air distribution duct.
  • the upstream annular sheath is a drying air distribution sheath
  • the downstream annular sheath is a drying air extraction sheath.
  • a ventilation device outside the central space of the module 2, a ventilation device, helical or centrifugal, makes it possible to create a pressure difference between the two sheaths 11 and 12, to ensure the circulation of air in the module.
  • a heating battery provides thermal energy to maintain the air temperature at the desired setpoint.
  • An outside air intake and an air extraction make it possible to renew the drying air.
  • annular sheaths 11, 12 On the annular sheaths 11, 12 are arranged orifices, respectively 13, 14, adapted to ensure the flow of air in the module.
  • the orifices 13, 14 are distributed on the facing faces of the annular sheaths 11, 12.
  • the orifices 14 distribute the drying air and the orifices 13 extract the air which circulates substantially from the downstream upstream in the module.
  • the distribution and extraction of the drying air are provided substantially perpendicularly to the transport means 3, via distribution tubes 15 and extraction tubes 16.
  • a distribution or extraction tube 16 has an open end 17, a closed end 18 and a line of perforations 19, extending from one end to the other.
  • the open end 17 is fixed in an orifice 14 of the distribution sheath 12
  • the closed end 18 is fixed in an orifice 13 of the extraction sheath 11
  • the line perforation 19 is oriented to ensure the drying of the ceramic products 4 disposed on the belt 3.
  • the open end 17 is fixed in an orifice 13 of the extraction sleeve 11
  • closed end 18 is fixed in an orifice 14 of the distribution sheath 12
  • the line of perforations 19 is oriented to ensure the suction of drying air Ceramic products 4.
  • the distribution and extraction tubes 16 are identical and interchangeable.
  • the arrangement of the air distribution and air extraction tubes is adaptable for optimum drying efficiency of the ceramic products.
  • the distribution tubes 15 are all disposed in the bottom 5 of the module and the extraction tubes 16 in the top 6 of the module.
  • the distribution tubes 15 are all arranged in the top 6 of the module and the extraction tubes 16 in the bottom 5 of the module.
  • the distribution tubes 15 are arranged on a lateral part of the module, and the extraction tubes 16 on the opposite lateral part ( figure 5 ).
  • the distribution tubes 15 and the extraction tubes 16 are arranged alternately on the entire annular distribution and extraction respectively sheath.
  • the perforations 19 of the distribution tubes 15 and the extraction tubes 16 are of dimensions and shapes adapted to the type of ventilation that it is desirable to produce in the module and on the ceramic products.
  • the orientation of the perforation lines 19 is adjusted relative to the ceramic products to obtain optimal drying.
  • the introduction of the distribution tubes 15 and the extraction tubes 16 and the orientation of the perforation lines 19 are easy because of the possible opening of the modules 2, the upper 6 pivoting on the hinge line 7 under the action of an actuator 20. Once the top 6 raised, access to the interior of the module 2 is ensured, regardless of the position of the module 2 in the tunnel 1 drying.
  • the annular sheaths 11, 12 are constituted in two parts, a part in the bottom 5 of the module and another part in the top 6 of the module 2.
  • each module is individually adjusted, and the number of modules is adapted to ensure optimal drying of ceramic products.
  • the drying tunnel consists of modules of identical transverse dimensions, individually ensuring the admission, extraction and temperature, humidity and speed control of the drying air of ceramic products.
  • An advantage of the drying tunnel described relates to the mixing of the drying air. Indeed, ventilation being provided within each module, it can be realized a change in the ventilation at each passage from one module to the next. This arrangement makes it possible to control the longitudinal transfers between the modules and generally between the entrance and exit of the tunnel.
  • Another advantage of the drying tunnel according to the invention is that its useful length is variable according to the needs, and adaptable by adding or removing one or more modules or simply by the commissioning or shutdown of modules.
  • Another advantage of the drying tunnel according to the invention is that it consists of modules whose transverse dimensions are identical but whose length may be different to ensure particular drying conditions, for example.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)

Description

L'invention concerne un tunnel de séchage pour produits céramiques.The invention relates to a drying tunnel for ceramic products.

Pour les produits céramiques, en particulier pour les produits céramiques liés aux arts de la table, il est habituel de prévoir des installations de séchage permettant le traitement de tous les produits.For ceramic products, especially for ceramics products related to the tableware, it is usual to provide drying facilities for the treatment of all products.

Dans la mesure où les installations doivent traiter une grande variété de produits, les séchoirs à tunnel classiques ont des dimensions excédant les besoins et une rentabilité insuffisante. Ils ne peuvent être modifiés, ni parfaitement adaptés à chaque produit. EP2098811 divulgue un module de séchage selon le préambule de la revendication 1.As facilities have to handle a wide variety of products, conventional tunnel dryers have dimensions exceeding requirements and insufficient profitability. They can not be modified or perfectly adapted to each product. EP2098811 discloses a drying module according to the preamble of claim 1.

Un but de l'invention est de proposer un tunnel de séchage pour produits céramiques de dimensions restreintes.An object of the invention is to provide a drying tunnel for ceramic products of small dimensions.

Un autre but de l'invention est de proposer un tunnel de séchage pour produits céramiques de longueur variable en fonction des besoins.Another object of the invention is to provide a drying tunnel for ceramic products of variable length as needed.

Un autre but de l'invention est de proposer un tunnel de séchage pour produits céramiques dont la structure de ventilation soit aisément modifiable.Another object of the invention is to provide a drying tunnel for ceramic products whose ventilation structure is easily modifiable.

L'invention a pour objet un module de tunnel de séchage selon la revendication 1. Avantageusement, les gaines annulaires présentent des orifices aptes à assurer la circulation d'air dans le module.The invention relates to a drying tunnel module according to claim 1. Advantageously, the annular sheaths have orifices adapted to ensure the flow of air in the module.

De manière avantageuse, les orifices sont répartis sur les faces en regard des gaines annulaires.Advantageously, the orifices are distributed on the facing faces of the annular sheaths.

Avantageusement, des tubes sont disposés entre les gaines annulaires pour assurer la distribution ou l'extraction de l'air dans le module.Advantageously, tubes are arranged between the annular sheaths to ensure the distribution or extraction of air in the module.

De manière avantageuse, un tube comporte une extrémité ouverte, une extrémité fermée et une ligne de perforations s'étendant d'une extrémité à l'autre.Advantageously, a tube has an open end, a closed end and a line of perforations extending from one end to the other.

Avantageusement, pour assurer la distribution d'air, un tube a son extrémité ouverte dans un orifice de la gaine de distribution, et son extrémité fermée dans un orifice de la gaine d'extraction.Advantageously, to ensure the distribution of air, a tube has its end open in an orifice of the distribution sheath, and its closed end in an orifice of the extraction sheath.

De manière avantageuse, pour assurer l'extraction d'air, un tube a son extrémité ouverte dans un orifice de la gaine d'extraction et son extrémité fermée dans un orifice de la gaine de distribution.Advantageously, to ensure the extraction of air, a tube has its open end in an orifice of the extraction sheath and its closed end in an orifice of the distribution sheath.

Avantageusement, le module comporte un dessous et un dessus, articulés le long d'une ligne longitudinale, le dessus pivotant sur la ligne sous l'action d'un actionneur.Advantageously, the module comprises a bottom and a top, articulated along a longitudinal line, the top pivoting on the line under the action of an actuator.

De manière avantageuse, les gaines annulaires sont constituées en deux parties, une partie dans le dessous du module et une autre partie dans le dessus du module.Advantageously, the annular sheaths consist of two parts, a part in the bottom of the module and another part in the top of the module.

L'invention a aussi pour objet un tunnel de séchage pour produits céramiques disposés sur un moyen de transport parcourant le tunnel de l'amont vers l'aval, caractérisé en ce qu'il est constitué de modules de dimensions transversales identiques.The invention also relates to a drying tunnel for ceramic products arranged on a conveyance traveling through the tunnel from upstream to downstream, characterized in that it consists of modules of identical transverse dimensions.

D'autres caractéristiques et avantages de l'invention ressortent de la description qui suit faite avec référence aux dessins annexés dans lesquels :

  • La figure 1 est une vue en perspective d'un exemple de réalisation d'un tunnel de séchage selon l'invention ;
  • La figure 2 est une vue en coupe transversale du tunnel de la figure 1 ;
  • La figure 3 est une vue schématique en coupe longitudinale d'un module du tunnel selon l'invention, dans un premier mode de réalisation ;
  • La figure 4 est une vue schématique en coupe longitudinale d'un module du tunnel selon l'invention, dans un deuxième mode de réalisation ;
  • La figure 5 est une vue schématique en coupe transversale d'un module du tunnel selon l'invention, dans un troisième mode de réalisation.
Other characteristics and advantages of the invention appear from the following description given with reference to the appended drawings in which:
  • The figure 1 is a perspective view of an exemplary embodiment of a drying tunnel according to the invention;
  • The figure 2 is a cross-sectional view of the tunnel of the figure 1 ;
  • The figure 3 is a schematic view in longitudinal section of a tunnel module according to the invention, in a first embodiment;
  • The figure 4 is a schematic view in longitudinal section of a tunnel module according to the invention, in a second embodiment;
  • The figure 5 is a schematic cross-sectional view of a tunnel module according to the invention, in a third embodiment.

Le tunnel 1 de séchage de produits céramiques est constitué d'une suite de modules 2, de dimensions transversales identiques, juxtaposés et alignés. Les modules 2 alignés sont tous traversés par un moyen de transport 3 qui transporte des produits céramiques 4 à sécher, de l'entrée amont à la sortie aval du tunnel 1. Le moyen de transport 3 est prévu pour laisser passer l'air de séchage à travers des ouvertures. Il peut être constitué par une bande continue perforée, une nappe de courroies espacées parallèles à l'axe des modules, un ensemble de traverses espacées, perpendiculaires à l'axe des modules, et reliées par des chaines, un tapis perforé ou tout autre moyen équivalent.The tunnel 1 for drying ceramic products consists of a series of modules 2 of identical transverse dimensions, juxtaposed and aligned. The aligned modules 2 are all traversed by a transport means 3 which transports ceramic products 4 to be dried, from the upstream inlet to the downstream outlet of the tunnel 1. The transport means 3 is designed to allow the drying air to pass through. through openings. It may consist of a perforated continuous band, a sheet of spaced belts parallel to the axis of the modules, a set of spaced crosspieces perpendicular to the axis of the modules, and connected by chains, a perforated belt or any other means. equivalent.

Chaque module 2 est équipé de moyens individuels de ventilation et de réglage de température et d'humidité. Dans chaque module, le séchage des produits céramiques est assuré par échange avec un air contrôlé par le module, en température, humidité, et vitesse sur les parois des produits céramiques. Tous les modules sont de dimensions transversales identiques, et individuellement configurables en termes de qualité de l'air (température et humidité) et de vitesse de ventilation. Les modules peuvent avoir des longueurs différentes.Each module 2 is equipped with individual means of ventilation and adjustment of temperature and humidity. In each module, the drying of the ceramic products is ensured by exchange with an air controlled by the module, in temperature, humidity, and speed on the walls of the ceramic products. All modules are of identical cross-sectional dimensions and individually configurable in terms of air quality (temperature and humidity) and ventilation speed. The modules can have different lengths.

Chaque module 2 se compose d'un dessous 5 et d'un dessus 6, articulés le long d'une ligne longitudinale 7. Ainsi le module peut être ouvert pour la mise en place du moyen de transport 3, l'adaptation des moyens de séchage, et fermé pour la réalisation du séchage en tunnel.Each module 2 consists of a bottom 5 and a top 6, articulated along a longitudinal line 7. Thus the module can be opened for the introduction of the transport means 3, the adaptation of the means of drying, and closed for carrying out tunnel drying.

Par rapport au sens de défilement du moyen de transport 3, identifié par la flèche 8, le module 2 présente une extrémité amont 9 et une extrémité aval 10.With respect to the direction of travel of the transport means 3, identified by the arrow 8, the module 2 has an upstream end 9 and a downstream end 10.

Selon un mode préférentiel de réalisation, le module 2 comporte au voisinage de ses extrémités 9, 10, des gaines annulaires 11, 12, respectivement, pour assurer la circulation d'air dans le module.According to a preferred embodiment, the module 2 comprises in the vicinity of its ends 9, 10, annular sheaths 11, 12, respectively, to ensure the flow of air in the module.

Cette circulation d'air s'effectue à contre-courant des produits céramiques, c'est-à-dire de l'aval vers l'amont. La gaine annulaire 11 qui est en amont est une gaine d'extraction de l'air de séchage. La gaine annulaire 12 aval est une gaine de distribution de l'air de séchage. Selon un autre mode de réalisation, la gaine annulaire amont est une gaine de distribution d'air de séchage, et la gaine annulaire aval est une gaine d'extraction d'air de séchage.This flow of air is carried out against the current of the ceramic products, that is to say from downstream to upstream. The annular sheath 11 which is upstream is a drying air extraction sheath. Sheath annular 12 downstream is a drying air distribution duct. According to another embodiment, the upstream annular sheath is a drying air distribution sheath, and the downstream annular sheath is a drying air extraction sheath.

A l'extérieur de l'espace central du module 2, un organe de ventilation, hélicoïde ou centrifuge, permet de créer une différence de pression entre les deux gaines 11 et 12, pour assurer la circulation d'air dans le module. Une batterie de chauffe apporte l'énergie thermique pour maintenir la température de l'air à la valeur de consigne souhaitée. Une admission d'air extérieur et une extraction d'air permettent d'assurer le renouvellement de l'air de séchage.Outside the central space of the module 2, a ventilation device, helical or centrifugal, makes it possible to create a pressure difference between the two sheaths 11 and 12, to ensure the circulation of air in the module. A heating battery provides thermal energy to maintain the air temperature at the desired setpoint. An outside air intake and an air extraction make it possible to renew the drying air.

Sur les gaines annulaires 11, 12 sont disposés des orifices, respectivement 13, 14, aptes à assurer la circulation d'air dans le module.On the annular sheaths 11, 12 are arranged orifices, respectively 13, 14, adapted to ensure the flow of air in the module.

Les orifices 13, 14 sont répartis sur les faces en regard des gaines annulaires 11, 12.The orifices 13, 14 are distributed on the facing faces of the annular sheaths 11, 12.

Dans le premier mode de réalisation de la figure 3, les orifices 14 distribuent l'air de séchage et les orifices 13 extraient l'air qui circule sensiblement de l'aval vers l'amont dans le module.In the first embodiment of the figure 3 the orifices 14 distribute the drying air and the orifices 13 extract the air which circulates substantially from the downstream upstream in the module.

Dans le deuxième mode de réalisation de la figure 4, la distribution et l'extraction de l'air de séchage sont assurées sensiblement perpendiculairement au moyen de transport 3, par l'intermédiaire de tubes de distribution 15 et de tubes d'extraction 16.In the second embodiment of the figure 4 , the distribution and extraction of the drying air are provided substantially perpendicularly to the transport means 3, via distribution tubes 15 and extraction tubes 16.

A cet effet, un tube de distribution 15 ou d'extraction 16 comporte une extrémité ouverte 17, une extrémité fermée 18 et une ligne de perforations 19, s'étendant d'une extrémité à l'autre. Pour un tube de distribution d'air 15, l'extrémité ouverte 17 est fixée dans un orifice 14 de la gaine de distribution 12, l'extrémité fermée 18 est fixée dans un orifice 13 de la gaine d'extraction 11, et la ligne de perforations 19 est orientée pour assurer le séchage des produits céramiques 4 disposés sur le tapis 3. Pour un tube d'extraction d'air 16, l'extrémité ouverte 17 est fixée dans un orifice 13 de la gaine d'extraction 11, l'extrémité fermée 18 est fixée dans un orifice 14 de la gaine de distribution 12, et la ligne de perforations 19 est orientée pour assurer l'aspiration de l'air de séchage des produits céramiques 4. Les tubes de distribution 15 et d'extraction 16 sont identiques et interchangeables. D'un module à l'autre, la disposition des tubes de distribution d'air et d'extraction d'air est adaptable pour une efficacité optimale du séchage des produits céramiques. A titre d'exemple, dans un premier module, les tubes de distribution 15 sont tous disposés dans le dessous 5 du module et les tubes d'extraction 16 dans le dessus 6 du module. Dans un deuxième module, les tubes de distribution 15 sont tous disposés dans le dessus 6 du module et les tubes d'extraction 16 dans le dessous 5 du module. Dans un troisième module, les tubes de distribution 15 sont disposés sur une partie latérale du module, et les tubes d'extraction 16 sur la partie latérale opposée (figure 5).For this purpose, a distribution or extraction tube 16 has an open end 17, a closed end 18 and a line of perforations 19, extending from one end to the other. For an air distribution tube 15, the open end 17 is fixed in an orifice 14 of the distribution sheath 12, the closed end 18 is fixed in an orifice 13 of the extraction sheath 11, and the line perforation 19 is oriented to ensure the drying of the ceramic products 4 disposed on the belt 3. For an air extraction tube 16, the open end 17 is fixed in an orifice 13 of the extraction sleeve 11, closed end 18 is fixed in an orifice 14 of the distribution sheath 12, and the line of perforations 19 is oriented to ensure the suction of drying air Ceramic products 4. The distribution and extraction tubes 16 are identical and interchangeable. From one module to another, the arrangement of the air distribution and air extraction tubes is adaptable for optimum drying efficiency of the ceramic products. For example, in a first module, the distribution tubes 15 are all disposed in the bottom 5 of the module and the extraction tubes 16 in the top 6 of the module. In a second module, the distribution tubes 15 are all arranged in the top 6 of the module and the extraction tubes 16 in the bottom 5 of the module. In a third module, the distribution tubes 15 are arranged on a lateral part of the module, and the extraction tubes 16 on the opposite lateral part ( figure 5 ).

Dans un quatrième module, les tubes de distribution 15 et les tubes d'extraction 16 sont disposés en alternance sur toute la gaine annulaire de distribution et respectivement d'extraction.In a fourth module, the distribution tubes 15 and the extraction tubes 16 are arranged alternately on the entire annular distribution and extraction respectively sheath.

Les perforations 19 des tubes de distribution 15 et des tubes d'extraction 16 sont de dimensions et de formes adaptées au type de ventilation qu'il est souhaitable de réaliser dans le module et sur les produits céramiques. L'orientation des lignes de perforations 19 est réglée par rapport aux produits céramiques pour obtenir un séchage optimal.The perforations 19 of the distribution tubes 15 and the extraction tubes 16 are of dimensions and shapes adapted to the type of ventilation that it is desirable to produce in the module and on the ceramic products. The orientation of the perforation lines 19 is adjusted relative to the ceramic products to obtain optimal drying.

La mise en place des tubes de distribution 15 et des tubes d'extraction 16 et l'orientation des lignes de perforations 19 sont aisées en raison de l'ouverture possible des modules 2, le dessus 6 pivotant sur la ligne d'articulation 7 sous l'action d'un actionneur 20. Une fois le dessus 6 relevé, l'accès à l'intérieur du module 2 est assuré, quelle que soit la position du module 2 dans le tunnel 1 de séchage. Les gaines annulaires 11, 12 sont constituées en deux parties, une partie dans le dessous 5 du module et une autre partie dans le dessus 6 du module 2.The introduction of the distribution tubes 15 and the extraction tubes 16 and the orientation of the perforation lines 19 are easy because of the possible opening of the modules 2, the upper 6 pivoting on the hinge line 7 under the action of an actuator 20. Once the top 6 raised, access to the interior of the module 2 is ensured, regardless of the position of the module 2 in the tunnel 1 drying. The annular sheaths 11, 12 are constituted in two parts, a part in the bottom 5 of the module and another part in the top 6 of the module 2.

Dans le tunnel de séchage pour produits céramiques décrit, chaque module fait l'objet d'un réglage individuel, et le nombre de modules est adapté pour assurer le séchage optimal des produits céramiques. Le tunnel de séchage est constitué de modules de dimensions transversales identiques, assurant individuellement l'admission, l'extraction et le contrôle en température, humidité et vitesse, de l'air de séchage des produits céramiques. Un avantage du tunnel de séchage décrit est relatif au brassage de l'air de séchage. En effet, la ventilation étant assurée à l'intérieur de chaque module, il peut être réalisé un changement dans la ventilation à chaque passage d'un module au suivant. Cette disposition permet de contrôler les transferts longitudinaux entre les modules et d'une manière générale entre l'entrée et la sortie du tunnel. Un autre avantage du tunnel de séchage selon l'invention est que sa longueur utile est variable en fonction des besoins, et adaptable par ajout ou retrait d'un ou plusieurs modules ou plus simplement par la mise en service ou l'arrêt de modules. Un autre avantage du tunnel de séchage selon l'invention est qu'il est constitué de modules dont les dimensions transversales sont identiques mais dont la longueur peut être différente pour assurer des conditions de séchage particulières, par exemple.In the drying tunnel for ceramic products described, each module is individually adjusted, and the number of modules is adapted to ensure optimal drying of ceramic products. The drying tunnel consists of modules of identical transverse dimensions, individually ensuring the admission, extraction and temperature, humidity and speed control of the drying air of ceramic products. An advantage of the drying tunnel described relates to the mixing of the drying air. Indeed, ventilation being provided within each module, it can be realized a change in the ventilation at each passage from one module to the next. This arrangement makes it possible to control the longitudinal transfers between the modules and generally between the entrance and exit of the tunnel. Another advantage of the drying tunnel according to the invention is that its useful length is variable according to the needs, and adaptable by adding or removing one or more modules or simply by the commissioning or shutdown of modules. Another advantage of the drying tunnel according to the invention is that it consists of modules whose transverse dimensions are identical but whose length may be different to ensure particular drying conditions, for example.

Claims (10)

  1. A drying tunnel module for producing ceramics positioned on a transport means traversing the tunnel from the upstream side to the downstream side, the module ensuring individually the distribution, the extraction and the control of temperature; humidity and speed of the drying air for the ceramic products (4), said module including an upstream end (9) and a downstream end (10), characterized in that said module includes an annular sheath (12) for distributing air in the vicinity of one of its ends (9, 10), and an annular sheath (11) for extracting air in the vicinity of the other one of its ends (9, 10.
  2. The module according to claim 1, wherein the annular sheaths (12, 11) have orifices (14, 13) able to ensure circulation of air in the module (2).
  3. The module according to claim 2, wherein the orifices (14, 13) are distributed on faces facing the annular sheaths (12, 11).
  4. The module according to claim 3, wherein tubes (15, 16) are positioned between the annular sheaths for ensuring distribution or extraction of the air in the module.
  5. The module according to claim 4, wherein a tube (15, 16) includes an open end (17), a closed end (18) and a line of perforations (19) extending from one end to the other.
  6. The module according to claim 5, wherein for ensuring distribution of air, a tube (15) has its open end (17) in an orifice (14) of the distribution sheath (12), and its closed end (18) in an orifice (13) of the extraction sheath (11).
  7. The module according to claim 5, wherein for ensuring extraction of air, a tube (16) has its open end (17) in an orifice (13) of the extraction sheath (12), and its closed end (18) in an orifice (14) of the distribution sheath (12).
  8. The module according to claim 1, characterized in that it includes a bottom (5) and a top (6), organized along a longitudinal line (7), the top (6) pivoting on the line (7) under the action of an actuator (20).
  9. The module according to claim 8, wherein the annular sheaths (11, 12) consist of two portions, one portion in the bottom (5) of the module (2) and another portion in the top (6) of the module (2).
  10. A drying tunnel for producing ceramics positioned on a transport means traversing the tunnel from the upstream side to the downstream side, characterized in that it consists of modules (2) according to one of claims 1 to 9, with identical transverse dimensions.
EP15185921.2A 2014-10-23 2015-09-18 Drying tunnel for ceramic products Active EP3012565B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1460189A FR3027659A1 (en) 2014-10-23 2014-10-23 DRYING TUNNEL FOR CERAMIC PRODUCTS

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EP3012565A1 EP3012565A1 (en) 2016-04-27
EP3012565B1 true EP3012565B1 (en) 2017-04-12

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Publication number Priority date Publication date Assignee Title
CN106338193A (en) * 2016-08-24 2017-01-18 桂林浩新科技服务有限公司 Automobile spare part baking box
IT201900025543A1 (en) * 2019-12-24 2021-06-24 Scg Building Mat Co Ltd DRYING STATION FOR CERAMIC SLABS

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US4635381A (en) * 1982-06-29 1987-01-13 Gladd Industries, Inc. Paint bake oven
TW416261B (en) * 1997-04-24 2000-12-21 Ciba Sc Holding Ag Process and apparatus for the treatment of coated printed circuit boards
DE102008013012B4 (en) * 2008-03-07 2010-08-12 Hans Lingl Anlagenbau Und Verfahrenstechnik Gmbh & Co. Kg Tunnel dryers for drying moldings, with air inlets spaced transversely from one another
WO2013124140A1 (en) * 2012-02-22 2013-08-29 Bühler AG Drying of foodstuffs, more particularly pasta
ITMI20122231A1 (en) * 2012-12-21 2014-06-22 Geico Spa INDUSTRIAL TUNNEL OVEN

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FR3027659A1 (en) 2016-04-29
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EP3012565A1 (en) 2016-04-27

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