EP2138789B1 - Device for drying a ceramic product, in particular made from clay - Google Patents

Device for drying a ceramic product, in particular made from clay Download PDF

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Publication number
EP2138789B1
EP2138789B1 EP20090162703 EP09162703A EP2138789B1 EP 2138789 B1 EP2138789 B1 EP 2138789B1 EP 20090162703 EP20090162703 EP 20090162703 EP 09162703 A EP09162703 A EP 09162703A EP 2138789 B1 EP2138789 B1 EP 2138789B1
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EP
European Patent Office
Prior art keywords
notches
support elements
drying
products
support
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EP20090162703
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German (de)
French (fr)
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EP2138789A1 (en
Inventor
Luc Tavernier
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Edilians SAS
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Imerys TC SAS
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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
    • F26B25/14—Chambers, containers, receptacles of simple construction
    • F26B25/18—Chambers, containers, receptacles of simple construction mainly open, e.g. dish, tray, pan, rack
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D5/00—Supports, screens, or the like for the charge within the furnace
    • 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 device for drying a ceramic product, especially clay.
  • clay products such as bricks
  • the latter are successively extruded, dried, cooked and optionally ground.
  • the products are conventionally arranged on grids. Hot air passing through the grids is brought over the entire surface of the products to ensure uniform drying thereof.
  • the products are subjected to a retraction phenomenon in which their dimensions are substantially reduced.
  • tensions apply at the level of the anchoring zones. These tensions generate deformations or cracks in the products.
  • the document US 4,300,881 proposes a device for drying a ceramic product, in particular clay, comprising a first and a second longitudinal members each comprising a plurality of notches, and a plurality of cylindrical tube-shaped support rollers on which the product to be dried is intended to come to rest. The ends of the support rollers rest against the bottom of the notches, to allow the pivoting of these rollers in the notches.
  • Such a drying device provides little space between the different support rollers.
  • the air can then hardly circulate at the bottom face of the products and the drying is not performed uniformly and efficiently. Heterogeneity of drying then leads to product degradation and longer drying times.
  • the invention aims to overcome this disadvantage by providing a drying device ensuring good homogeneity and reduced drying time of the products, while avoiding their degradation.
  • the document FR 2,282,978 discloses a ceramic product drying device having first and second longitudinal members each comprising a plurality of notches, and a plurality of elongate support members, each support member having an upper edge on which the product to be dried is for to come to rest, and a first and a second ends resting on the upper face of the longitudinal members, the ends of the support elements and the notches being designed to allow the displacement of the support elements in the notches.
  • Each support element has the shape of a plate disposed substantially vertically.
  • the structure of the notches does not allow pivoting of the support elements in the notches, but only a displacement along the longitudinal axis, so that either the support moves by rubbing in the notch, or the upper edge of the support moves by rubbing with respect to the lower surface of the product. Especially in the case where the clearance is very low, it is therefore possible that the upper edge of the support element rubs against the bottom wall of the products, resulting in degradation thereof.
  • the invention relates to a device for drying a ceramic product, in particular clay, comprising a first and a second longitudinal members each comprising a plurality of notches, and a plurality of elongated support elements having the form of a plate disposed substantially vertically, each support member having an upper edge on which the product to be dried is intended to rest, and first and second ends resting in notches, characterized in that each notch is provided in the upper face of a spar, the lower edge of the ends of the support members rests on the bottom of a notch, and the ends of the support elements and the notches are designed to allow pivoting of the support elements in the notches.
  • the shape of the plates and their orientation make it possible to arrange a significant day between the different support elements, so that the air flow reaching the bottom wall of the products to be dried is not hindered.
  • the drying of the products is therefore performed in a homogeneous and efficient manner.
  • pivoting of the supports ensures that the upper edge of the latter does not create stress on the underside of the products, the retraction of the products being completely absorbed by the pivoting.
  • each plate is formed by two tabs disposed in the upper part thereof, extending outwardly and resting on the bottom of the notches.
  • the support members can pivot along the contact edge between the tabs and the bottom of the corresponding notches.
  • the upper edge of the support elements has a rounded or pointed section.
  • each notch has a generally conical shape flaring outwards.
  • each support element is arranged so that its center of gravity is disposed under the pivot axis formed by the line of contact between the lateral ends and the notches.
  • the support members can be pivoted to compensate for the dimensional shrinkage of the products and are thus offset from their vertical equilibrium position.
  • the weight of the support elements tends to recall the latter in their vertical position, so that it is not necessary to replace them before another drying cycle of products.
  • At least one of the notches or at least one of the support elements is equipped with means for limiting the rotation or immobilization of the corresponding support element, for example a shim or a wedge.
  • the immobilization of at least one support element makes it possible to keep the product in a stable equilibrium position and to prevent the support elements from all tilting on the same side.
  • FIGS. Figures 1 to 4 A drying device according to the invention is illustrated in FIGS. Figures 1 to 4 . It comprises a first and a second longitudinal members 1, 2 of rectangular general section, arranged parallel to one another.
  • Each spar comprises an upper surface 3 in which are provided notches 4 regularly spaced from each other.
  • Each notch has a generally conical shape flaring upwards, the notches of the first spar being arranged opposite those of the second spar.
  • the drying device further comprises a plurality of plate-like support members.
  • Each support element 5 has, in front view and as illustrated in FIG. figure 2 , a general form of T. Indeed, each support member comprises a central portion 6 of generally rectangular shape having a lower edge 7 and an upper edge 8 from which laterally extend two tabs 9, 10 forming the wings of T.
  • the support elements 5 are mounted in the notches 4, substantially perpendicular to the longitudinal members 1, 2, so that the lower edge 11 of the tabs 9, 10 is in contact against the bottom of the corresponding notches 4.
  • only a part of the longitudinal members 1, 2 is equipped with the support elements 5 and, in this part, only one notch 4 out of two is equipped with a support element 5.
  • the spacing of the support elements 5 is dependent on the dimensions of the products to be dried as well as the drying conditions. It is therefore possible to adjust such a gap according to the needs, it can be any multiple of the distance between two notches 4.
  • the upper edge 8 of the support elements 5 and / or the lower edge 11 of the lugs 9, 10 have a rounded or point-shaped section.
  • the median portion 6 extends downwardly beyond the tabs, the center of gravity G of each support element being then disposed under the lower edge 11 of the tabs 9, 10.
  • One of the support elements is immobilized in a vertical position, so as to define a stable position of the products 12 and prevent tilting of all the support elements 5 on the same side.
  • the immobilization can be carried out via a wedge or a rider mounted in the corresponding notch or notches (not shown).
  • the flow of hot air can easily pass through the spaces formed between two support elements 5 and reach the bottom wall of the products 12.
  • the surface can not be reached by the hot air flow is almost zero and corresponds contact areas between the upper edge 8 tapered support members 5 and the bottom wall of the products 12.
  • the products 12 are subjected to a dimensional shrinkage.
  • the support elements 5 then progressively accompany this withdrawal by pivoting around the lower edge 11 of the lugs 9, 10.
  • the support members 5 arranged on one side of the immobilized support member 13 pivot in the opposite direction to those on the opposite side, as shown in FIG. figure 4 .
  • the rounded or pointed shapes of the upper edge 8 and the lower edges 11 of the lugs 9, 10 facilitate the pivoting of the support elements 5.
  • the products 12 are removed from the support elements 5 and they return to their vertical equilibrium position.
  • the drying device can then be reused for a new drying cycle of products.
  • the device presented above makes it possible to avoid degradation of the products during drying, while ensuring good homogeneity and reduced drying time of the products.

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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 dispositif de séchage d'un produit en céramique, notamment en argile.The invention relates to a device for drying a ceramic product, especially clay.

Lors de la fabrication de produit en argile tels que des briques, ces dernières sont successivement extrudées, séchées, cuites et éventuellement rectifiées.During the manufacture of clay products such as bricks, the latter are successively extruded, dried, cooked and optionally ground.

Lors de l'opération de séchage, les produits sont classiquement disposés sur des grilles. De l'air chaud passant au travers des grilles est amené sur toute la surface des produits afin d'assurer un séchage uniforme de ceux-ci.During the drying operation, the products are conventionally arranged on grids. Hot air passing through the grids is brought over the entire surface of the products to ensure uniform drying thereof.

Lors de cette opération de séchage, les produits sont soumis à un phénomène de rétraction au cours duquel leurs dimensions sont sensiblement réduites.During this drying operation, the products are subjected to a retraction phenomenon in which their dimensions are substantially reduced.

Du fait de la malléabilité du matériau dans sa forme non séchée et sous l'effet de leur poids, les produits s'enfoncent légèrement dans les grilles et s'ancrent dans celles-ci.Because of the malleability of the material in its undried form and under the effect of their weight, the products sink slightly into the grids and are anchored in them.

Ainsi, lors du séchage et du retrait dimensionnel des produits, des tensions s'appliquent au niveau des zones d'ancrage. Ces tensions génèrent des déformations ou des fissurations des produits.Thus, during the drying and the dimensional shrinkage of the products, tensions apply at the level of the anchoring zones. These tensions generate deformations or cracks in the products.

Afin de remédier à cet inconvénient, le document US 4 300 881 propose un dispositif de séchage d'un produit en céramique, notamment en argile, comportant un premier et un second longerons comprenant chacun une pluralité d'encoches, et une pluralité de rouleaux supports en forme de tubes cylindriques sur lesquels le produit à sécher est destiné à venir reposer. Les extrémités des rouleaux supports reposent contre le fond des encoches, afin de permettre le pivotement de ces rouleaux dans les encoches.In order to remedy this drawback, the document US 4,300,881 proposes a device for drying a ceramic product, in particular clay, comprising a first and a second longitudinal members each comprising a plurality of notches, and a plurality of cylindrical tube-shaped support rollers on which the product to be dried is intended to come to rest. The ends of the support rollers rest against the bottom of the notches, to allow the pivoting of these rollers in the notches.

De cette manière, lors de la rétraction des produits durant le séchage, les rouleaux pivotent progressivement dans les encoches et accompagnent ainsi les produits sans les dégrader.In this way, during the retraction of the products during drying, the rollers rotate gradually in the notches and thus accompany the products without degrading them.

Un tel dispositif de séchage ménage toutefois peu d'espace entre les différents rouleaux supports. L'air peut alors difficilement circuler au niveau de la face inférieure des produits et le séchage n'est pas effectué de façon uniforme et efficace. Une hétérogénéité du séchage entraîne alors des dégradations des produits et des temps de séchage plus longs.Such a drying device, however, provides little space between the different support rollers. The air can then hardly circulate at the bottom face of the products and the drying is not performed uniformly and efficiently. Heterogeneity of drying then leads to product degradation and longer drying times.

L'invention vise à remédier à cet inconvénient en proposant un dispositif de séchage garantissant une bonne homogénéité et un temps réduit de séchage des produits, tout en évitant leur dégradation.The invention aims to overcome this disadvantage by providing a drying device ensuring good homogeneity and reduced drying time of the products, while avoiding their degradation.

Le document FR 2 282 978 décrit un dispositif de séchage d'un produit en céramique comportant un premier et un second longerons comprenant chacun une pluralité d'encoches, et une pluralité d'éléments supports allongés, chaque élément support présentant un bord supérieur sur lequel le produit a sécher est destiné à venir reposer, ainsi qu'une première et une seconde extrémités reposant sur la face supérieure des longerons, les extrémités des éléments supports et les encoches étant conçues pour permettre le déplacement des éléments supports dans les encoches. Chaque élément support présente la forme d'une plaque disposée sensiblement verticalement.The document FR 2,282,978 discloses a ceramic product drying device having first and second longitudinal members each comprising a plurality of notches, and a plurality of elongate support members, each support member having an upper edge on which the product to be dried is for to come to rest, and a first and a second ends resting on the upper face of the longitudinal members, the ends of the support elements and the notches being designed to allow the displacement of the support elements in the notches. Each support element has the shape of a plate disposed substantially vertically.

La structure des encoches ne permet pas un pivotement des éléments supports dans les encoches, mais uniquement un déplacement selon l'axe longitudinal, de sorte que, soit le support se déplace en frottant dans l'encoche, soit le bord supérieur du support se déplace en frottant par rapport à la surface inférieure du produit. En particulier dans le cas où le jeu est très faible, il se peut donc que le bord supérieur de l'élément support frotte contre la paroi inférieure des produits, ce qui entraîne une dégradation de ceux-ci.The structure of the notches does not allow pivoting of the support elements in the notches, but only a displacement along the longitudinal axis, so that either the support moves by rubbing in the notch, or the upper edge of the support moves by rubbing with respect to the lower surface of the product. Especially in the case where the clearance is very low, it is therefore possible that the upper edge of the support element rubs against the bottom wall of the products, resulting in degradation thereof.

A cet effet, l'invention concerne un dispositif de séchage d'un produit en céramique, notamment en argile, comportant un premier et un second longerons comprenant chacun une pluralité d'encoches, et une pluralité d'éléments supports allongés présentant la forme d'une plaque disposée sensiblement, verticalement, chaque élément support présentant un bord supérieur sur lequel le produit à sécher est destiné à venir reposer, ainsi qu'une première et une seconde extrémités reposant dans des encoches, caractérisé en ce que chaque encoche est ménagée dans la face supérieure d'un longeron, le bord inférieur des extrémités des éléments supports repose sur le fond d'une encoche, et les extrémités des éléments supports et les encoches sont conçues pour permettre le pivotement des éléments supports dans les encoches.To this end, the invention relates to a device for drying a ceramic product, in particular clay, comprising a first and a second longitudinal members each comprising a plurality of notches, and a plurality of elongated support elements having the form of a plate disposed substantially vertically, each support member having an upper edge on which the product to be dried is intended to rest, and first and second ends resting in notches, characterized in that each notch is provided in the upper face of a spar, the lower edge of the ends of the support members rests on the bottom of a notch, and the ends of the support elements and the notches are designed to allow pivoting of the support elements in the notches.

La forme des plaques et leur orientation permettent de ménager un jour important entre les différents éléments supports, de sorte que le flux d'air atteignant la paroi inférieure des produits à sécher n'est pas entravé. Le séchage des produits est donc effectué de manière homogène et efficace.The shape of the plates and their orientation make it possible to arrange a significant day between the different support elements, so that the air flow reaching the bottom wall of the products to be dried is not hindered. The drying of the products is therefore performed in a homogeneous and efficient manner.

Le fait que les extrémités des éléments support reposent contre le fond des encoches permet de diminuer l'encombrement, en particulier la hauteur, du dispositif de séchage.The fact that the ends of the support elements rest against the bottom of the notches makes it possible to reduce the size, in particular the height, of the drying device.

En outre, le pivotement des supports garantit que le bord supérieur de ces derniers ne crée pas de contrainte sur la face inférieure des produits, la rétractation des produits étant complètement absorbée par le pivotement.In addition, the pivoting of the supports ensures that the upper edge of the latter does not create stress on the underside of the products, the retraction of the products being completely absorbed by the pivoting.

Selon une caractéristique de l'invention, les extrémités de chaque plaque sont formées par deux pattes disposées dans la partie supérieure de celle-ci, s'étendant vers l'extérieur et reposant sur le fond des encoches.According to a feature of the invention, the ends of each plate are formed by two tabs disposed in the upper part thereof, extending outwardly and resting on the bottom of the notches.

De cette manière, les éléments supports peuvent pivoter le long de l'arête de contact entre les pattes et le fond des encoches correspondantes.In this way, the support members can pivot along the contact edge between the tabs and the bottom of the corresponding notches.

Avantageusement, le bord supérieur des éléments supports présente une section arrondie ou en pointe.Advantageously, the upper edge of the support elements has a rounded or pointed section.

Selon une forme de réalisation de l'invention, chaque encoche présente une forme générale conique s'évasant vers l'extérieur.According to one embodiment of the invention, each notch has a generally conical shape flaring outwards.

Préférentiellement, chaque élément support est agencé de manière à ce que son centre de gravité soit disposé sous l'axe de pivotement formé par la ligne de contact entre les extrémités latérales et les encoches.Preferably, each support element is arranged so that its center of gravity is disposed under the pivot axis formed by the line of contact between the lateral ends and the notches.

De cette manière, lors du séchage, les éléments supports peuvent être amenés à pivoter afin de compenser le retrait dimensionnel des produits et sont ainsi décalés de leur position verticale d'équilibre. Après retrait des produits, le poids des éléments supports tend à rappeler ces derniers dans leur position verticale, de sorte qu'il n'est pas nécessaire de les replacer avant un autre cycle de séchage de produits.In this manner, during drying, the support members can be pivoted to compensate for the dimensional shrinkage of the products and are thus offset from their vertical equilibrium position. After removal of the products, the weight of the support elements tends to recall the latter in their vertical position, so that it is not necessary to replace them before another drying cycle of products.

Selon une caractéristique de l'invention, au moins une des encoches ou au moins l'un des éléments supports est équipé de moyens de limitation de la rotation ou d'immobilisation de l'élément support correspondant, par exemple une cale ou un coin.According to a characteristic of the invention, at least one of the notches or at least one of the support elements is equipped with means for limiting the rotation or immobilization of the corresponding support element, for example a shim or a wedge.

L'immobilisation d'au moins un élément support permet de maintenir le produit dans une position d'équilibre stable et d'éviter que les éléments supports basculent tous d'un même côté.The immobilization of at least one support element makes it possible to keep the product in a stable equilibrium position and to prevent the support elements from all tilting on the same side.

De toute façon, l'invention sera bien comprise à l'aide de la description qui suit en référence au dessin schématique annexé représentant, à titre d'exemple, une forme de réalisation de ce dispositif de séchage.

  • Figure 1 en est une vue en perspective, de dessus ;
  • Figure 2 en est une vue de côté ;
  • Figure 3 et 4 en sont des vues de face, respectivement avant et après séchage des produits.
In any case, the invention will be better understood from the description which follows with reference to the attached schematic drawing showing, by way of example, an embodiment of this drying device.
  • Figure 1 is a perspective view, from above;
  • Figure 2 is a side view;
  • Figure 3 and 4 are front views, respectively before and after drying of the products.

Un dipositif de séchage selon l'invention est illustré aux figures 1 à 4. Celui-ci comporte un premier et un second longerons 1, 2 de section générale rectangulaire, disposés parallèlement l'un à l'autre.A drying device according to the invention is illustrated in FIGS. Figures 1 to 4 . It comprises a first and a second longitudinal members 1, 2 of rectangular general section, arranged parallel to one another.

Chaque longeron comporte une surface supérieure 3 dans laquelle sont ménagées des encoches 4 régulièrement espacées les unes des autres.Each spar comprises an upper surface 3 in which are provided notches 4 regularly spaced from each other.

Chaque encoche présente une forme générale conique s'évasant vers le haut, les encoches du premier longeron étant ménagées en regard de celles du second longeron.Each notch has a generally conical shape flaring upwards, the notches of the first spar being arranged opposite those of the second spar.

Le dispositif de séchage comporte en outre une pluralité d'éléments supports 5 en forme de plaque.The drying device further comprises a plurality of plate-like support members.

Chaque élément support 5 présente, en vue de face et comme cela est illustré à la figure 2, une forme générale de T. En effet, chaque élément support comporte une partie médiane 6 de forme générale rectangulaire présentant un bord inférieur 7 et un bord supérieur 8 à partir duquel s'étendent latéralement deux pattes 9, 10 formant les ailes du T.Each support element 5 has, in front view and as illustrated in FIG. figure 2 , a general form of T. Indeed, each support member comprises a central portion 6 of generally rectangular shape having a lower edge 7 and an upper edge 8 from which laterally extend two tabs 9, 10 forming the wings of T.

Les éléments supports 5 sont montés dans les encoches 4, sensiblement perpendiculairement aux longerons 1, 2, de manière à ce que le bord inférieur 11 des pattes 9, 10 soit en contact contre le fond des encoches 4 correspondantes. Dans la forme de réalisation représentée aux figures, seule une partie des longerons 1, 2 est équipée des éléments supports 5 et, dans cette partie, seule une encoche 4 sur deux est équipée d'un élément support 5. L'espacement des éléments supports 5 est dépendant des dimensions des produits à sécher ainsi que des conditions de séchage. Il est donc possible de d'ajuster un tel écartement en fonction des besoins, celui-ci pouvant être n'importe quel multiple de la distance entre deux encoches 4.The support elements 5 are mounted in the notches 4, substantially perpendicular to the longitudinal members 1, 2, so that the lower edge 11 of the tabs 9, 10 is in contact against the bottom of the corresponding notches 4. In the embodiment shown in the figures, only a part of the longitudinal members 1, 2 is equipped with the support elements 5 and, in this part, only one notch 4 out of two is equipped with a support element 5. The spacing of the support elements 5 is dependent on the dimensions of the products to be dried as well as the drying conditions. It is therefore possible to adjust such a gap according to the needs, it can be any multiple of the distance between two notches 4.

Le bord supérieur 8 des éléments supports 5 et/ou le bord inférieur 11 des pattes 9, 10 présentent une section arrondie ou en forme de pointe.The upper edge 8 of the support elements 5 and / or the lower edge 11 of the lugs 9, 10 have a rounded or point-shaped section.

La partie médiane 6 s'étend vers le bas au-delà des pattes, le centre de gravité G de chaque élément support étant alors disposé sous le bord inférieur 11 des pattes 9, 10.The median portion 6 extends downwardly beyond the tabs, the center of gravity G of each support element being then disposed under the lower edge 11 of the tabs 9, 10.

Ainsi, lorsqu'aucun effort n'est exercé sur les éléments supports 5, ces derniers sont rappelés dans une position d'équilibre verticale.Thus, when no force is exerted on the support elements 5, the latter are recalled in a position of vertical equilibrium.

Afin de faire sécher des produits en argile 12, par exemple des briques, ces derniers sont posés sur les éléments supports 5 orientés verticalement. Cette position est représentée à la figure 3.In order to dry clay products 12, for example bricks, these are placed on the support elements 5 oriented vertically. This position is represented in figure 3 .

L'un des éléments supports, plus particulièrement celui désigné par la référence 13, est immobilisé en position verticale, de manière à définir une position stable des produits 12 et éviter le basculement de tous les éléments supports 5 d'un même côté. L'immobilisation peut être réalisée par l'intermédiaire d'un coin ou d'un cavalier monté dans la ou les encoches correspondantes (non représenté).One of the support elements, more particularly that designated by the reference 13, is immobilized in a vertical position, so as to define a stable position of the products 12 and prevent tilting of all the support elements 5 on the same side. The immobilization can be carried out via a wedge or a rider mounted in the corresponding notch or notches (not shown).

Lors du séchage, le flux d'air chaud peut ainsi facilement traverser les espaces ménagés entre deux éléments supports 5 et atteindre la paroi inférieure des produits 12. La surface ne pouvant pas être atteinte par le flux d'air chaud est quasi nulle et correspond aux zones de contact entre le bord supérieur 8 effilé des éléments supports 5 et la paroi inférieure des produits 12.During drying, the flow of hot air can easily pass through the spaces formed between two support elements 5 and reach the bottom wall of the products 12. The surface can not be reached by the hot air flow is almost zero and corresponds contact areas between the upper edge 8 tapered support members 5 and the bottom wall of the products 12.

Lors de cette opération de séchage, les produits 12 sont soumis à un retrait dimensionnel. Les éléments supports 5 accompagnent alors progressivement ce retrait en pivotant autour du bord inférieur 11 des pattes 9, 10.During this drying operation, the products 12 are subjected to a dimensional shrinkage. The support elements 5 then progressively accompany this withdrawal by pivoting around the lower edge 11 of the lugs 9, 10.

Plus particulièrement, les éléments supports 5 disposés de l'un des côté de l'élément support immobilisé 13 pivotent dans le sens contraire de ceux situés du côté opposé, comme cela est illustré à la figure 4.More particularly, the support members 5 arranged on one side of the immobilized support member 13 pivot in the opposite direction to those on the opposite side, as shown in FIG. figure 4 .

Les formes arrondies ou en pointe du bord supérieur 8 et des bords inférieurs 11 des pattes 9, 10 facilitent le pivotement des éléments supports 5.The rounded or pointed shapes of the upper edge 8 and the lower edges 11 of the lugs 9, 10 facilitate the pivoting of the support elements 5.

Après séchage, les produits 12 sont retirés des éléments supports 5 et ceux-ci retrouvent leur position verticale d'équilibre.After drying, the products 12 are removed from the support elements 5 and they return to their vertical equilibrium position.

Le dispositif de séchage peut alors être réutilisé pour un nouveau cycle de séchage de produits.The drying device can then be reused for a new drying cycle of products.

On remarque ainsi que le dispositif présenté ci-dessus permet d'éviter une dégradation des produits lors du séchage, tout en garantissant une bonne homogénéité et un temps réduit de séchage des produits.It is thus noted that the device presented above makes it possible to avoid degradation of the products during drying, while ensuring good homogeneity and reduced drying time of the products.

Comme il va de soi l'invention ne se limite pas à la seule forme de réalisation de ce dispositif, décrite ci-dessus à titre d'exemple, mais elle embrasse au contraire toutes les variantes. C'est ainsi notamment que celui-ci pourrait comporter plus de deux longerons.It goes without saying that the invention is not limited to the sole embodiment of this device, described above as an example, but it embraces all variants. This is particularly that it could include more than two longitudinal members.

Claims (6)

  1. A device for drying a ceramic product (12), in particular made from clay, including first and second beams (1, 2) each comprising a plurality of notches (4), and a plurality of elongated support elements (5) in the shape of a plate positioned substantially vertically, each support element (5) having an upper edge (8) on which the product to be dried (12) is intended to rest, as well as first and second ends (9, 10) resting in notches (4), characterized in that each notch (4) is formed in the upper face of a beam (1, 2), the lower edge (11) of the ends (9, 10) of the support elements (5) rests on the bottom of a notch, and the ends (9, 10) of the support elements (5) and the notches (4) are designed to allow the support elements (5) to pivot in the notches (4).
  2. The drying device according to claim 1, characterized in that the ends of each plate are formed by two tabs (9, 10) positioned in the upper part thereof, extending outwardly and resting on the bottom of the notches (4).
  3. The drying device according to any one of claims 1 or 2, characterized in that the upper edge (8) of the support elements (5) has a rounded or pointed section.
  4. The drying device according to one of claims 1 to 3, characterized in that each notch (4) has a generally outwardly flared conical shape.
  5. The drying device according to claim [sic] 1 to 4, characterized in that each support element (5) is arranged such that its center of gravity (G) is arranged below the pivot axis formed by the contact line between the lateral ends (9, 10) and the notches (4).
  6. The drying device according to one of claims 1 to 5, characterized in that at least one of the notches (4) or at least one of the support elements (5) is equipped with means for limiting the rotation or immobilization of the corresponding support element (5), for example a shim or a corner.
EP20090162703 2008-06-26 2009-06-15 Device for drying a ceramic product, in particular made from clay Not-in-force EP2138789B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0803595A FR2933174B1 (en) 2008-06-26 2008-06-26 DEVICE FOR DRYING A CERAMIC PRODUCT, IN PARTICULAR CLAY

Publications (2)

Publication Number Publication Date
EP2138789A1 EP2138789A1 (en) 2009-12-30
EP2138789B1 true EP2138789B1 (en) 2013-10-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20090162703 Not-in-force EP2138789B1 (en) 2008-06-26 2009-06-15 Device for drying a ceramic product, in particular made from clay

Country Status (3)

Country Link
EP (1) EP2138789B1 (en)
ES (1) ES2443049T3 (en)
FR (1) FR2933174B1 (en)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3103421A (en) * 1963-09-10 Marchetti
FR486214A (en) * 1917-07-18 1918-03-19 Hans Peter Dinesen Device for drying material in bags or similar envelopes
GB172200A (en) * 1920-11-02 1921-12-08 Walter Lee An improved rack for use mainly in drying sheet leather
DE1265019B (en) * 1966-02-22 1968-03-28 Thomas Fa Robert Transport unit for moldings made of clay, concrete or the like.
FR2282978A1 (en) * 1974-08-29 1976-03-26 Lauragais Tuileries Briq Long building bricks with longitudinal internal channels - mfd. from kaolino-illitic clay, calcareous clay and silica sand
US4045167A (en) * 1975-11-06 1977-08-30 Acme Marls Limited Muffled kiln cars
DE2749569C2 (en) * 1977-11-05 1986-06-26 Norbert Dr. 5410 Höhr-Grenzhausen Steuler Kiln furniture for single-layer firing of ceramic bricks
DE2939437A1 (en) * 1979-09-28 1981-04-16 Annawerk Keramische Betriebe GmbH, 8633 Rödental Heat resistant structure for ceramic kiln car - uses interlocking hollow recrystallised silicon carbide members including mineral wool covered verticals
EP0065600B1 (en) * 1981-05-21 1985-10-30 Acme Marls Limited Kiln support assembly for fast firing of tiles
ITMO20040150A1 (en) * 2004-06-17 2004-09-17 Inteco Ceramic Supplies S R L FRAME FOR THE SUPPORT OF ARTIFACTS
DE202006015709U1 (en) * 2006-10-11 2007-01-18 Meiser Gitterroste Kg Grating comprises upwardly slanting slots in the ends of the main bars into which a free end of a support element is engaged

Also Published As

Publication number Publication date
FR2933174B1 (en) 2010-08-20
ES2443049T3 (en) 2014-02-17
FR2933174A1 (en) 2010-01-01
EP2138789A1 (en) 2009-12-30

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