EP0572295A1 - Refractory lining for skids, used in particular in metallurgic and ceramic furnaces - Google Patents

Refractory lining for skids, used in particular in metallurgic and ceramic furnaces Download PDF

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Publication number
EP0572295A1
EP0572295A1 EP93401191A EP93401191A EP0572295A1 EP 0572295 A1 EP0572295 A1 EP 0572295A1 EP 93401191 A EP93401191 A EP 93401191A EP 93401191 A EP93401191 A EP 93401191A EP 0572295 A1 EP0572295 A1 EP 0572295A1
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EP
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Prior art keywords
metallurgical
concrete
refractory lining
furnace according
ceramic
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EP93401191A
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German (de)
French (fr)
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EP0572295B1 (en
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Yves Braud
Dominique Eurin
Philippe Lambin
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Terres Refractaires du Boulonnais Ste des
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Terres Refractaires du Boulonnais Ste des
Terres Refractaires Du Boulonnais
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    • 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
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/14—Supports for linings
    • F27D1/141—Anchors therefor
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/02—Skids or tracks for heavy objects
    • F27D3/022—Skids
    • F27D3/024—Details of skids, e.g. riders
    • 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

Definitions

  • these linings for side rails there is on the metal structure linked to the movement mechanism of these side rails and on a concrete base 4 secured to this same metal structure located in the furnace, a ring 2 made of concrete aluminous refractory, of generally parallelepiped shape, which is manufactured and dried in the workshop, which gives them optimum controlled mechanical strength.
  • the space 3 hollowed out in its center is either filled during the installation of an insulating concrete 14, or filled with a stack of insulating bricks capable also of withstanding a temperature close to 1200 ° C., this whole assembly rests on its underside 6 on said structure, while the upper face 5 is surmounted by a block of aluminous concrete 1 cast in situ.
  • the upper face of the ring 2 comprises over its entire periphery a plurality of blind cavities 11, the side faces 17 of which are with negative undercuts, such as in particular of the dovetail type, these cavities are subsequently filled with the concrete of the layer upper 1, thus creating non-removable anchor points, this construction system cancels the phenomenon of "tearing off” observed in operation and caused by the sticking of slabs and billets on said spars.

Abstract

Refractory lining for skids for metallurgical or ceramic furnaces, characterised in that it is constituted by an assembly of composite elements, either premoulded in a workshop or cast on site, of a shape which is generally parallelepipedal, and it also comprises firstly a ring (2) made on a basis of aluminous refractory concrete with coarse aggregates, the hollow space (3) in its centre is filled on mounting with an insulating material, the whole rests on its lower face (6) on a metal structure connected to the device for displacement of said skids, while the upper face (5) of said assembly is surmounted by a block of aluminous concrete (1), and the sandwich thus formed is passed through over its entire thickness by a plurality of means for fixing (7) and blocking (10, 11). <IMAGE>

Description

La présente invention est relative à un mode de réalisation de pièces faisant partie d'installations sidérurgiques et notamment pour des fours métallurgiques ou céramiques.The present invention relates to an embodiment of parts forming part of steel installations and in particular for metallurgical or ceramic furnaces.

Ces pièces constituent plus précisément le garnissage de longerons mobiles devant servir au déplacement des produits sidérurgiques. Dans un four traditionnel métallurgique, les produits bruts sous forme de brames ou de billettes doivent subir un échauffement progressif, avant leur transformation et leur passage dans des trains de laminoir à chaud, en produits élaborés tels que tôles, fils, étirés. Dans le cas d'un four pour céramique, ces garnissages assurent un temps de séjour suffisant donc une cuisson optimale des pièces diverses de céramique.These parts more specifically constitute the lining of mobile beams for use in the movement of steel products. In a traditional metallurgical oven, the raw products in the form of slabs or billets must undergo gradual heating, before their transformation and their passage in hot rolling mill trains, into processed products such as sheets, wires, drawn. In the case of an oven for ceramics, these linings ensure a sufficient residence time therefore optimal cooking of the various pieces of ceramic.

Actuellement, le transfert dans les différentes zones d'un four est assuré par le déplacement de poutres mobiles que l'on nomme longerons. La cinétique du déplacement s'assimile à un mouvement de va et vient connu sous le terme de "pas de pélerin". Ces poutres doivent non seulement supporter les masses importantes et l'inertie résultante du mouvement, mais surtout posséder une excellente tenue à l'abrasion thermique compte tenu des hauts niveaux de température atteints, compris entre 1200°C et 1350°C, des temps de séjour importants dans une atmosphère souvent oxydante.Currently, the transfer in the various zones of a furnace is ensured by the displacement of mobile beams which one names spars. The kinetics of displacement is assimilated to a back and forth movement known by the term of "no pilgrim". These beams must not only support the large masses and the inertia resulting from the movement, but above all have an excellent resistance to thermal abrasion taking into account the high temperature levels. achieved, between 1200 ° C and 1350 ° C, long residence times in an often oxidizing atmosphere.

Toutes ces contraintes thermo-mécaniques imposent aux utilisateurs de ces fours une réfection périodique du garnissage constituant les longerons. Les garnissages connus sont généralement constitués d'un seul bloc de béton réfractaire coulé ou rapporté in situ au sein de la structure du longeron.All these thermo-mechanical constraints impose on the users of these ovens a periodic repair of the lining constituting the longitudinal members. Known packings generally consist of a single block of refractory concrete poured or added in situ within the structure of the spar.

Ces bétons ne possèdent pas de caractéristiques particulières suivant les zones du longeron en contact avec le produit à véhiculer, en effet certaines seront plus sensibles à l'abrasion thermique et d'autres à une érosion mécanique.These concretes do not have any particular characteristics depending on the areas of the spar in contact with the product to be transported, in fact some will be more sensitive to thermal abrasion and others to mechanical erosion.

Lors de la réfection, d'une part, les blocs de béton, de masse non négligeable, sont souvent d'un accès difficile, ne facilitant pas la tâche des utilisateurs et d'autre part étant d'un seul tenant, ces derniers sont amenés à changer plus que nécessaire rendant l'opération coûteuse.During the repair, on the one hand, the concrete blocks, of considerable mass, are often of difficult access, not facilitating the task of the users and on the other hand being in one piece, they are having to change more than necessary making the operation expensive.

La présente invention se propose d'améliorer et de simplifier le processus de remise en état des garnissages de longerons, par l'emploi de blocs de garnissage préalablement réalisés en atelier et coulés in situ, aisément manipulables. Ces garnissages ont la particularité d'être constitués par un assemblage de bétons réfractaires et composites possédant leurs caractéristiques propres.The present invention proposes to improve and simplify the process of reconditioning the lining of longitudinal members, by the use of packing blocks previously produced in the workshop and cast in situ, easily manipulated. These linings have the distinction of being constituted by an assembly of refractory and composite concretes having their own characteristics.

L'invention a donc pour objet un garnissage réfractaire de longerons pour four métallurgique et céramique, caractérisé en ce qu'il est constitué d'un assemblage d'éléments composites soit prémoulés en atelier, soit coulés sur site, de forme globalement parallélépipédique et il comprend en outre, tout d'abord un anneau à base de béton réfractaire alumineux à gros agrégats, l'espace évidé en son centre est rempli au montage d'une matière isolante, l'ensemble repose sur sa face inférieure sur une structure métallique liée au dispositif de déplacement desdits longerons, tandis que la face supérieure dudit assemblage est coiffée par un bloc de béton alumineux, le sandwich ainsi formé est traversé sur toute son épaisseur par une pluralité de moyens de fixation et de blocage.The invention therefore relates to a refractory lining of beams for metallurgical and ceramic furnaces, characterized in that it consists of an assembly of composite elements either pre-molded in the workshop, or cast on site, of generally parallelepiped shape and it further includes, first of all, a refractory concrete base ring aluminous with large aggregates, the space hollowed out at its center is filled when mounting an insulating material, the assembly rests on its underside on a metal structure linked to the device for moving said beams, while the upper face of said assembly is capped by a block of aluminous concrete, the sandwich thus formed is traversed over its entire thickness by a plurality of fixing and blocking means.

D'autres caractéristiques et avantages de ces garnissages apparaîtront à travers la description qui suit d'un mode d'élaboration, donné à titre indicatif et non limitatif. Sur les figures :

  • la figure 1 est une vue en coupe d'un élément de garnissage pour longeron ;
  • la figure 2 est une vue en élévation plane de ce même élémént de garnissage.
Other characteristics and advantages of these linings will become apparent from the following description of an embodiment, given by way of non-limiting indication. In the figures:
  • Figure 1 is a sectional view of a lining member for beam;
  • Figure 2 is a plan elevational view of the same packing element.

Selon un mode préféré de réalisation de ces garnissages pour longerons, on dispose sur la structure métallique liée au mécanisme de déplacement de ces longerons et sur une embase en béton 4 solidaire de cette même structure métallique situés dans le four, un anneau 2 constitué de béton réfractaire alumineux, de forme globalement parallélépipédique, qui est fabriqué et séché en atelier, ce qui leur confère une tenue mécanique optimum contrôlée. L'espace 3 évidé en son centre est soit rempli au montage d'un béton isolant 14, soit comblé par un empilement de briques isolantes capables aussi de résister à une température voisine de 1200°C, tout cet ensemble repose sur sa face inférieure 6 sur ladite structure, tandis que la face supérieure 5 est surmontée par un bloc de béton alumineux 1 coulé in situ.According to a preferred embodiment of these linings for side rails, there is on the metal structure linked to the movement mechanism of these side rails and on a concrete base 4 secured to this same metal structure located in the furnace, a ring 2 made of concrete aluminous refractory, of generally parallelepiped shape, which is manufactured and dried in the workshop, which gives them optimum controlled mechanical strength. The space 3 hollowed out in its center is either filled during the installation of an insulating concrete 14, or filled with a stack of insulating bricks capable also of withstanding a temperature close to 1200 ° C., this whole assembly rests on its underside 6 on said structure, while the upper face 5 is surmounted by a block of aluminous concrete 1 cast in situ.

Les faces latérales du noyau central 14 en contact avec celles de l'anneau 2 sont recouvertes d'un joint de dilatation thermique et mécanique, notamment réalisé à l'aide de paraffine. Les faces supérieure 5 et inférieure 6, en regard respectives de la couche de béton 1 et de la structure 4, sont coiffées de plaques de carton 5' et de fibrecéramiques 6' constituant des joints de dilatation mécanique.The lateral faces of the central core 14 in contact with those of the ring 2 are covered with a thermal and mechanical expansion joint, in particular produced using paraffin. The upper 5 and lower 6 faces, respectively facing the concrete layer 1 and the structure 4, are capped with cardboard plates 5 ′ and ceramic fibers 6 ′ constituting mechanical expansion joints.

La face supérieure de l'anneau 2 comprend sur toute sa périphérie une pluralité de cavités borgnes 11 dont les faces latérales 17 sont à dépouilles négatives, telles que notamment du type queue d'aronde, ces cavités se remplissent postérieurement par le béton de la couche supérieure 1, créant ainsi des points d'ancrage indémontables, ce système de construction annule le phénomène "d'arrachage" constaté en exploitation et causé par le collage des brames et des billettes sur lesdits longerons.The upper face of the ring 2 comprises over its entire periphery a plurality of blind cavities 11, the side faces 17 of which are with negative undercuts, such as in particular of the dovetail type, these cavities are subsequently filled with the concrete of the layer upper 1, thus creating non-removable anchor points, this construction system cancels the phenomenon of "tearing off" observed in operation and caused by the sticking of slabs and billets on said spars.

L'empilement constitué par l'anneau 2, la couche supérieure de béton 1, le bâti 4 et sa structure métallique, est traversé sur toute son épaisseur par une pluralité de moyens 7 assurant la fixation et le blocage de l'ensemble.The stack formed by the ring 2, the upper layer of concrete 1, the frame 4 and its metallic structure, is traversed over its entire thickness by a plurality of means 7 ensuring the fixing and blocking of the assembly.

Ces moyens de fixation 7 sont pourvus d'ancrages de grande longueur, éventuellement en plusieurs morceaux, solidarisés en leur extrémité commune par une bague 8 qui peut être filetée. Ces ancrages sont conformés en "arbre de Noêl", les parties faisant saillie 9 sur la tige principale servent de pattes de scellement aux couches de béton coulées en atelier ou in situ. L'une des extrémités de ces moyens de fixation débouche au travers de la structure métallique du longeron et est munie de dispositifs de compensation 9', notamment choisis parmi les rondelles élastiques.These fixing means 7 are provided with very long anchors, possibly in several pieces, joined at their common end by a ring 8 which can be threaded. These anchors are shaped like a "Christmas tree", the protruding parts 9 on the main rod serve as sealing lugs for the concrete layers poured in the workshop or in situ. One end of these fixing means opens out through the metal structure of the spar and is provided with compensation devices 9 ′, in particular chosen from elastic washers.

On prévoit en outre des pattes de fixation 10 sur la plaque de fibrecéramiques 6', similaires aux pattes de scellement 9, dirigées vers l'extérieur et devant être noyées par la matière isolante remplissant l'espace. évidé 3.In addition, fixing lugs 10 are provided on the ceramic fiber plate 6 ′, similar to the sealing lugs 9, directed outwards and having to be embedded by the insulating material filling the space. hollowed out 3.

La face supérieure 16 de la couche de béton 1 couvrant l'anneau 2 et le béton isolant 14 ou l'empilement de briques, de l'espace 3 comprend un évidement central 13, s'étendant sur toute la longueur du garnissage, destiné à réduire et à limiter l'effet destructeur des points d'appui du produit sur le réfractaire d'une part, et à réduire les zones d'ombre sur les brames ou billettes d'autre part.The upper face 16 of the concrete layer 1 covering the ring 2 and the insulating concrete 14 or the stack of bricks, of the space 3 comprises a central recess 13, extending over the entire length of the lining, intended to reduce and limit the destructive effect of the points of support of the product on the refractory on the one hand, and reduce the shaded areas on the slabs or billets on the other hand.

Par ailleurs, compte tenu des hauts niveaux de température atteints et des risques d'érosion possibles, on pratique sur les faces latérales extérieures de l'anneau 2 des usinages 12 en forme de biseau devant permettre la déflection des scories en dehors de la zone des mécanismes assurant le mouvement des longerons.In addition, taking into account the high temperature levels reached and the possible risks of erosion, machining operations 12 in the form of a bevel are carried out on the external lateral faces of the ring 2 which should allow the deflection of the slag outside the zone of the mechanisms ensuring the movement of the side members.

L'anneau 2 est constitué d'un béton réfractaire alumineux à gros agrégats titrant entre 35 et 70 % d'alumine, destiné à encaisser les contraintes thermo-mécaniques, tandis que l'espace évidé 3 est rempli soit d'un béton 14, soit d'un empilement de briques, possédant des propriétés isolantes, dévolu à limiter le flux thermique.The ring 2 consists of an aluminous refractory concrete with large aggregates titrating between 35 and 70% of alumina, intended to absorb the thermo-mechanical stresses, while the hollowed out space 3 is filled with either a concrete 14, or a stack of bricks, having insulating properties, dedicated to limiting the heat flow.

Cet ensemble de construction de garnissages autorise :

  • le remplacement local d'un ou plusieurs éléments endommagés grâce au démontage des systèmes de fixation 7,
  • de limiter les zones d'érosion et de fissuration grâce à la construction en couches 1, 2, 4,
  • une protection efficace des zones mécaniques en mouvement.
This set of packings construction allows:
  • local replacement of one or more damaged elements by dismantling the fastening systems 7,
  • limit erosion and cracking zones thanks to the construction in layers 1, 2, 4,
  • effective protection of moving mechanical areas.

Il demeure bien entendu que la présente invention n'est pas limitée aux exemples de réalisation décrits et réalisés ci-dessus, mais qu'elle en englobe toutes les variantes ; ce principe de construction d'éléments de garnissages, très économique en maintenance et en coût de fabrication, peut également s'appliquer à divers fours de métallurgie, qu'ils soient à sole mobile, tournante, fixe, et à des fours de pétrochimie.It remains to be understood that the present invention is not limited to the embodiments described and produced above, but that it encompasses all variants thereof; this principle of construction of packing elements, very economical in maintenance and in manufacturing cost, can also be applied to various metallurgical furnaces, whether they have movable, rotating or fixed hearths, and to petrochemical furnaces.

Claims (10)

1 - Garnissage réfractaire de longerons pour four métallurgique et céramique, caractérisé en ce qu'il est constitué d'un assemblage d'éléments composites soit prémoulés en atelier, soit coulés sur site, de forme globalement parallélépipédique et il comprend en outre, tout d'abord un anneau (2) à base de béton réfractaire alumineux à gros agrégats, l'espace évidé (3) en son centre est rempli au montage d'une matière isolante, l'ensemble repose sur sa face inférieure (6) sur une structure métallique liée au dispositif de déplacement desdits longerons, tandis que la face supérieure (5) dudit assemblage est coiffé par un bloc de béton (1) alumineux, le sandwich ainsi formé est traversé sur toute son épaisseur par une pluralité de moyens de fixation (7) et de blocage (10, 11). 1 - Refractory lining of beams for metallurgical and ceramic furnaces, characterized in that it consists of an assembly of composite elements either pre-molded in the workshop, or cast on site, of generally parallelepipedal shape and it furthermore comprises all 'first a ring (2) based on aluminous refractory concrete with large aggregates, the hollow space (3) in its center is filled with the assembly of an insulating material, the assembly rests on its underside (6) on a metallic structure linked to the device for moving said longitudinal members, while the upper face (5) of said assembly is capped by a block of aluminous concrete (1), the sandwich thus formed is traversed over its entire thickness by a plurality of fixing means ( 7) and blocking (10, 11). 2 - Garnissage réfractaire de longerons pour four métallurgique et céramique selon la revendication 1, caractérisé en que l'on prévoit un joint de dilatation thermique et mécanique situé sur tout le pourtour latéral du noyau central (3) et à l'interface des surfaces en contact à base notamment de paraffine. 2 - refractory lining of longitudinal members for metallurgical and ceramic furnace according to claim 1, characterized in that there is provided a thermal and mechanical expansion joint located over the entire lateral periphery of the central core (3) and at the interface of the surfaces in contact based in particular on paraffin. 3 - Garnissage réfractaire de longerons pour four métallurgique et céramique selon des revendications 1 ou 2, caractérisé en ce que le noyau central (3) est muni sur ses faces inférieure (6) et supérieure (5) et entre les deux couches (1, 4) de béton rapportées in situ, de plaques (5', 6') à base notamment de carton et de fibrecéramiques. 3 - refractory lining of side members for metallurgical and ceramic furnace according to claims 1 or 2, characterized in that the central core (3) is provided on its lower (6) and upper (5) faces and between the two layers (1, 4) of concrete brought in situ, of plates (5 ', 6') based in particular on cardboard and ceramic fibers. 4 - Garnissage réfractaire de longerons pour four métallurgique et céramique selon l'une quelconque des revendications précédentes, caractérisé en ce que les moyens de fixation (7) sont constitués par des ancrages de grande longueur, éventuellement en plusieurs morceaux qui sont solidarisés à leur extrémité commune par une bague éventuellement filetée (8), conformés en "arbre de Noël", les parties faisant saillie (9) sur la tige principale servent de pattes de scellement lors du coulage des bétons, l'une des extrémités débouchantes est pourvue de dispositifs (9') de compensation notamment choisis parmi les rondelles élastiques. 4 - refractory lining of longitudinal members for metallurgical and ceramic furnace according to any one of the preceding claims, characterized in that the fixing means (7) are constituted by anchors of great length, possibly in several pieces which are secured at their common end by a possibly threaded ring (8), shaped like a "Christmas tree", the protruding parts (9) on the main rod serve as sealing tabs when pouring the concrete, one of the through ends is provided with compensation devices (9 ′) chosen in particular from elastic washers. 5 - Garnissage réfractaire de longerons pour four métallurgique et céramique selon l'une quelconque des revendications précédentes, caractérisé en ce que l'anneau (2) comprend sur sa face supérieure (5) et sur toute sa périphérie une pluralité de cavités (11) borgnes dont les faces latérales (17) sont à dépouilles négatives telles que notamment du type queue d'aronde, ces cavités étant remplies postérieurement par le béton (1) de la couche supérieure réalisant ainsi des points d'ancrage indémontables. 5 - Refractory lining of longitudinal members for metallurgical and ceramic furnace according to any one of the preceding claims, characterized in that the ring (2) comprises on its upper face (5) and over its entire periphery a plurality of cavities (11) blind whose side faces (17) are with negative spoils such as in particular of the dovetail type, these cavities being filled posteriorly by the concrete (1) of the upper layer thus achieving non-removable anchor points. 6 - Garnissage réfractaire de longerons pour four métallurgique et céramique selon l'une quelconque des revendications précédentes, caractérisé en ce que la plaque inférieure (6') en fibrecéramiques comprend sur sa surface une pluralité d'organes de scellement (10) pour la solidarisation avec la couche (14) de matière qui la recouvre. 6 - Refractory lining of side members for metallurgical and ceramic furnace according to any one of the preceding claims, characterized in that the lower plate (6 ') made of ceramic fibers comprises on its surface a plurality of sealing members (10) for securing with the layer (14) of material which covers it. 7 - Garnissage réfractaire de longerons pour four métallurgique et céramique selon l'une quelconque des revendications précédentes, caractérisé en ce que l'anneau (2) est réalisé en atelier par coulage et moulage d'un béton réfractaire alumineux dense à gros agrégats titrant de 35 à 70 % d'alumine. 7 - Refractory lining of side members for metallurgical and ceramic furnace according to any one of the preceding claims, characterized in that the ring (2) is produced in the workshop by casting and molding of dense aluminous refractory concrete with large aggregates titrating from 35 to 70% alumina. 8 - Garnissage réfractaire de longerons pour four métallurgique et céramique selon l'une quelconque des revendications précédentes, caractérisé en ce que le bloc de béton réfractaire supérieur (1) de l'assemblage comprend, sur la face en regard (16) des produits à transporter, un évidement central (13) s'étendant sur toute la longueur. 8 - Refractory lining of side members for metallurgical and ceramic furnace according to any one of the preceding claims, characterized in that the block of upper refractory concrete (1) of the assembly comprises, on the opposite face (16) of the products to be transported, a central recess (13) extending over the entire length. 9 - Garnissage réfractaire de longerons pour four métallurgique et céramique selon l'une quelconque des revendications précédentes, caractérisé en ce que les faces latérales de l'anneau (2) possédent des flans (12) taillés en biseau pour la déflexion des scories. 9 - Refractory lining of side members for metallurgical and ceramic furnace according to any one of the preceding claims, characterized in that the lateral faces of the ring (2) have blanks (12) cut at an angle for the deflection of the slag. 10 - Garnissage réfractaire de longerons pour four métallurgique et céramique selon l'une quelconque des revendications précédentes, caractérisé en ce que la matière isolante remplissant l'espace évidé (3) est constituée soit par un béton, soit par un empilement de briques capables de résister à une temperature voisine de 1200°C. 10 - Refractory lining of side members for metallurgical and ceramic furnace according to any one of the preceding claims, characterized in that the insulating material filling the hollowed-out space (3) is constituted either by a concrete, or by a stack of bricks capable of withstand a temperature close to 1200 ° C.
EP93401191A 1992-05-27 1993-05-10 Refractory lining for skids, used in particular in metallurgic and ceramic furnaces Expired - Lifetime EP0572295B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9206505A FR2691791B1 (en) 1992-05-27 1992-05-27 REFRACTORY TRIM OF LONGERS FOR OVENS, ESPECIALLY METALLURGICAL AND CERAMIC.
FR9206505 1992-05-27

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EP0572295A1 true EP0572295A1 (en) 1993-12-01
EP0572295B1 EP0572295B1 (en) 1996-03-13

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AT (1) ATE135458T1 (en)
DE (2) DE69301767T2 (en)
FR (1) FR2691791B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996034243A1 (en) * 1995-04-28 1996-10-31 Advanced Materials Enterprise Pty. Ltd. Furnace rider bar assembly

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1190485B (en) * 1960-08-01 1965-04-08 Brockmann & Bundt Ind Ofenbau Walking beam for walking beam conveyor
FR1512804A (en) * 1966-02-28 1968-02-09 Tabougnar Ab Improvements to bogie hearth furnaces
US4591338A (en) * 1985-05-20 1986-05-27 Swiss Aluminium Ltd. Pusher furnace

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1190485B (en) * 1960-08-01 1965-04-08 Brockmann & Bundt Ind Ofenbau Walking beam for walking beam conveyor
FR1512804A (en) * 1966-02-28 1968-02-09 Tabougnar Ab Improvements to bogie hearth furnaces
US4591338A (en) * 1985-05-20 1986-05-27 Swiss Aluminium Ltd. Pusher furnace

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996034243A1 (en) * 1995-04-28 1996-10-31 Advanced Materials Enterprise Pty. Ltd. Furnace rider bar assembly
US5897310A (en) * 1995-04-28 1999-04-27 Advanced Materials Enterprise Pty Furnace rider bar assembly

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EP0572295B1 (en) 1996-03-13
DE572295T1 (en) 1994-04-21
ATE135458T1 (en) 1996-03-15
FR2691791B1 (en) 1994-07-22
FR2691791A1 (en) 1993-12-03
DE69301767D1 (en) 1996-04-18
DE69301767T2 (en) 1996-09-05

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