EP1880157A1 - Cooled roller for handling steel products - Google Patents

Cooled roller for handling steel products

Info

Publication number
EP1880157A1
EP1880157A1 EP06726144A EP06726144A EP1880157A1 EP 1880157 A1 EP1880157 A1 EP 1880157A1 EP 06726144 A EP06726144 A EP 06726144A EP 06726144 A EP06726144 A EP 06726144A EP 1880157 A1 EP1880157 A1 EP 1880157A1
Authority
EP
European Patent Office
Prior art keywords
shaft
sleeve
cold
roller according
insulating sleeve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP06726144A
Other languages
German (de)
French (fr)
Other versions
EP1880157B1 (en
Inventor
René-Vincent CHEVER
Daniel Simonetti
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fives Stein SA
Original Assignee
Stein Heurtey SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stein Heurtey SA filed Critical Stein Heurtey SA
Priority to PL06726144T priority Critical patent/PL1880157T3/en
Publication of EP1880157A1 publication Critical patent/EP1880157A1/en
Application granted granted Critical
Publication of EP1880157B1 publication Critical patent/EP1880157B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • F27D3/026—Skids or tracks for heavy objects transport or conveyor rolls for furnaces; roller rails

Definitions

  • the present invention relates to a roller, used in particular in continuous furnaces for heating long products, for the handling and conveying of steel products and in particular slabs.
  • handling and conveying rollers must be designed and manufactured so that they ensure good product guidance throughout the oven while limiting the thermal marking of the products.
  • EP 0 345 147 discloses rollers consisting of a cooled central shaft having a plurality of discs perpendicular to the geometric axis of said shaft, each of these discs being provided with a tread in contact with the product moving in the furnace , the disks being separated by an insulating sleeve.
  • a roller used in particular in continuous furnaces for heating long products, for the handling and conveying of steel products and in particular slabs, comprising a cooled central shaft, in particular by a liquid, on which are mounted a plurality of disks, serving as a support for the products to be conveyed, arranged perpendicularly to the longitudinal geometric axis of the roller, spaced along the axis of the roll and separated by an insulating sleeve, is characterized in that the insulating sleeve is maintained at each longitudinal end by at least one cold part integral with the shaft and cooled by the shaft, with an axial clearance between the sleeve and the cold part, and a radial clearance between the sleeve and the shaft so that a possible deflection
  • the sleeve is supported radially at each axial end by the cold part.
  • the sleeve is supported radially by the shaft.
  • the cold room may be distinct from the neighboring disk.
  • the areas of contact between the insulating sleeve and the cold parts are limited to the axial end regions of the sleeve so that these reduced contact areas and the clearance between the insulating sleeve and the cold parts can limit the heat transfer of the sleeve. to cold rooms.
  • the cold room may be constituted by a stepped ring or by at least two stops locked in rotation and in translation on the central shaft. Locking of the ring or cleat can be done by welding on the shaft.
  • the cold room can also constitute a stop piece in translation and in rotation of a disc, which can be mounted with a radial play on the shaft, free in rotation and in translation.
  • a spacing radial gap may be provided between the shaft and the inner cylindrical surface of the insulating sleeve; the outer cylindrical surface of the insulating sleeve may be free.
  • the inner cylindrical surface of the insulating sleeve may consist of a cylindrical metal skirt around which is molded an insulating material, in particular refractory concrete.
  • the sleeve can, in alternatively, consist of a succession of cylindrical metal screens separated by air knives.
  • the rectilinear generatrices of the cylindrical skirt may extend axially above the cold parts, which radially support the skirt and the sleeve, the skirt having an internal diameter greater than the outer diameter of the shaft of a value determining the radial dimension.
  • infill space inside the skirt, towards each of its axial ends and on the side of the cold part opposite the adjacent disk, is provided a ring, projecting radially inwards, in a plane orthogonal to the geometric axis of the shaft, the axial clearance and the radial clearance are provided, on the one hand, between the cold part and the adjacent face of the crown and, on the other hand, between the shaft and the diameter of the opening of the crown surrounding the tree.
  • the radial clearance is provided between the inside diameter of the skirt and the outside diameter of the shaft and the axial ends of the skirt have a radially outward recess followed by an axial cylindrical return, the skirt is supported radially by the shaft, and the axial clearance is provided between the facing faces of the cold part and the recess.
  • the insulating sleeve can be rotatably mounted on the shaft.
  • Fig. 1 is a longitudinal section along line l-1 of FIG. 2 of a roll according to a first embodiment of the invention.
  • Fig. 2 is a section of the roller along line H-II of FIG. 1.
  • Fig. 3 is a detail of parts of the roll of FIG. 1, on a larger scale.
  • Fig. 4 is an exploded perspective view of elements of the roll of FIG. 1.
  • Fig. 5 is an exploded perspective view of another embodiment of the elements of FIG. 4.
  • Fig. 6 is a longitudinal section along the line VI-VI of FIG. 7 of a roller according to a second embodiment of the invention.
  • Fig. 7 is a section of the roller along the line VII-VII of FIG. 6.
  • Fig. 8 is a longitudinal section, along the line VIII-VIII of Fig.9, of a roller according to a third embodiment of the invention.
  • Fig. 9 is a section of the roller along the line IX-IX of FIG. 8, and
  • FIG. 10 is a detail of parts of the roll of FIG. 8, on a larger scale.
  • a roller R according to the invention comprises a hollow central shaft 1 of substantially horizontal geometric axis, on which are mounted disks 2, which serve as support for steel products 3 to be conveyed, for example slabs with a relatively high temperature, in particular of the order of 1000 ° C. or more, passing through a reheating furnace, not shown.
  • the hollow shaft 1 comprises, inside, a coaxial tube 1a defining, between its outer surface and the inner surface of the shaft 1, an annular space 1b.
  • the shaft 1 is cooled by a circulation of water, for example which arrives in the annular space 1b and returns through the tube 1a.
  • the discs 2 are arranged perpendicular to the longitudinal axis of the roll R, spaced along this axis. Two successive discs 2 are separated by a cylindrical insulating sleeve 4. The periphery of each disc 2 constitutes a tread 2a in contact with the product 3. This tread 2a extends on either side of the median plane of the disc 2.
  • the disc 2 comprises, at the level of the 1, a guide flange 2b whose axial extent is optimized to allow effective guiding of the disc 2 on the shaft 1.
  • the inner diameter of the flange 2b is slightly greater than the outer diameter of the shaft 1, a value allowing free mounting in rotation and in translation of the disks 2 on the shaft 1.
  • the disks 2 are not therefore directly integral with the shaft 1.
  • An air interface exists between the collar 2b and the shaft 1 over most of the circumference, and brakes the heat transfer from disk 2 to shaft 1.
  • the insulating sleeve 4 constitutes a volume entirely of revolution about the axis of the roll, allowing the production of a simple and robust part, advantageously made of refractory concrete.
  • the insulating sleeve 4 is held at each longitudinal end by at least one cold part 5 with an axial clearance Ja (FIG. 3) between the sleeve 4 and the cold part 5 and a radial clearance Jr (FIG. 3) between the sleeve 4. and the shaft 1.
  • the sets Ja and Jr allow a possible deflection of the shaft 1, in operation, without causing significant mechanical stress on the sleeve 4.
  • the values of the sets Ja and Jr are determined according to the operating conditions and the dimensions of rolls. As an indication, not limiting, the games Ja and Jr are generally greater than two millimeters.
  • the sleeve 4 is supported radially by the cold part 5.
  • a radial clearance Er exists between the sleeve 4 and the part 5.
  • the clearance Er is preferably less than half the radial clearance Jr between the sleeve 4 and the tree 1.
  • the sleeve 4 may be formed of an assembly of several integral parts. The games are to be considered between the cold part 5, the shaft 1, and the nearest surface of the part integral with the sleeve 4.
  • the cold room 5 may be distinct from the neighboring disc 2 so that a continuity solution is formed between them and creates a thermal barrier.
  • the part 5, cooled by conduction by the shaft 1 and separated from the disk 2, is in operation at a temperature which is substantially lower than that of the neighboring disc 2.
  • the longitudinal ends of the sleeve 4 are spaced axially from the disc 2 adjacent to a distance k, at least greater than twice that of Ja, so that the insulating sleeve 4 is not in contact with the hot discs 2. The thermal stresses and The mechanical joints on the sleeve 4 are reduced.
  • Each cold part 5 may be constituted by a shoulder ring 6 (FIG 4) or by at least two tabs 7 (FIG 5) locked in rotation and in translation on the central shaft 1.
  • the locking can be performed by welding on the shaft 1 of the ring 6 or the cleat 7, made of a steel allowing this welding. The welding also ensures the cooling of the parts 5 by conduction.
  • the cold parts 5 further serve to stop in translation and in rotation the disk 2 on the shaft 1.
  • the cold parts 5 comprise shoulders 5a in axial projection adapted to engage in corresponding notches 2c provided in the flanges 2b of the discs 2.
  • Two notches 2c diametrically opposite are shown in Fig.4 and 5. It is possible to provide more, especially three angularly spaced 120 °.
  • the discs 2 being mounted with a radial clearance on the shaft, this clearance allows free expansion of the discs 2 relative to the central shaft 1, thus removing the thermomechanical stresses between these parts.
  • An interspace 8 may be provided between the shaft 1 and the insulating sleeve 4.
  • the insulating sleeve 4 may comprise an inner metal cylindrical skirt 9 which is surrounded by and integral with a molded refractory concrete casing 4a (FIGS. 1 to 3) whose outer surface is free, or formed of a series of metal screens. 4b (Fig.6 and 7) separated by air knives.
  • the metal screens 4b oppose the radiative heat transfer between the atmosphere of the furnace and the cooled shaft 1 of the roller R.
  • the rectilinear generatrices of the cylindrical skirt 9 extend axially (see FIG. 3) above the cold parts 5, which radially support the skirt 9 and the sleeve 4.
  • the skirt 9 has an inner diameter greater than the outer diameter of the shaft 1 by a value h determining the radial dimension of the space 8.
  • a ring 10 projecting radially inwards, in a plane orthogonal to the geometric axis.
  • FIG. 8 to 10 illustrate another embodiment of a roll R according to the invention wherein the spacer 8 of Fig.3 is deleted.
  • the insulating sleeve 4 further comprises a cylindrical metal skirt inner 9c surrounded and secured to an insulating casing 4c, for example refractory concrete.
  • the radial clearance Jr is provided between the inner diameter of the skirt 9c and the outer diameter of the shaft 1, which radially supports the skirt 9c and the sleeve 4.
  • the axial ends of the skirt 9c have a radial recess 10c towards the outside followed by an axial cylindrical return 10d which overcomes the cold part 5.
  • the axial play Ja is provided between the facing faces of the cold part 5 and the recess 10c.
  • the insulating sleeve 4 can be mounted free to rotate on the unforeseenl, without being driven by the ring 6 or the cleats 7.
  • the operation of the roller R results from the foregoing explanations.
  • the shaft 1 can undergo a deflection which will cause a decrease in the clearances Ja and / or Jr without however removing them, so that the sleeves 4 are protected from mechanical and thermal stresses.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Tunnel Furnaces (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
  • Heat Treatment Of Steel (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)

Abstract

The invention concerns a roller (R), used in continuous product heating furnaces for handling and conveying steel products and in particular slabs. The associated apparatus includes a cooled central shaft (1), cooled by a liquid. On the shaft are mounted a plurality of discs (2), for supporting the products (3) to be transported, arranged perpendicularly to the longitudinal geometrical axis of the roller (R), spaced apart along the axis of the roller (R) and separated by an insulating sleeve (4). The insulating sleeve (4) is maintained at each longitudinal end by at least one cold component (5) secured to the shaft (1) and cooled by the shaft, with axial play (Ja) between the sleeve (4) and the shaft (1) such that possible sagging of the shaft (1) may occur in use without causing substantial mechanical stress on the insulating sleeve (4) and the heat transferred from the sleeve (4) to the shaft (1), and from the discs (2) to the sleeve (4) is limited.

Description

ROULEAU REFROIDI POUR LA MANUTENTION DE PRODUITS SIDÉRURGIQUES.COOLED ROLL FOR HANDLING STEEL PRODUCTS.
La présente invention est relative à un rouleau, utilisé notamment dans les fours continus de réchauffage de produits longs, pour la manutention et le convoyage de produits sidérurgiques et en particulier de brames.The present invention relates to a roller, used in particular in continuous furnaces for heating long products, for the handling and conveying of steel products and in particular slabs.
On sait que la conception et la réalisation de ce type de rouleaux doivent être faites de sorte qu'ils soient en adéquation avec : - la nature et les caractéristiques des produits se déplaçant dans le four, notamment poids, dimensions, forme, etc..It is known that the design and the realization of this type of rollers must be made so that they are in adequacy with: - the nature and the characteristics of the products moving in the oven, in particular weight, dimensions, form, etc.
- les conditions d'ambiance thermique régnant dans le four, dépendantes de la température à laquelle le produit doit être chauffé,the conditions of thermal environment prevailing in the oven, dependent on the temperature at which the product is to be heated,
- la nature de l'atmosphère à l'intérieur du four, oxydante ou réductrice, - la plage de vitesses à laquelle le produit doit être déplacé dans le four.the nature of the atmosphere inside the oven, oxidizing or reducing, the range of speeds at which the product must be moved in the oven.
Par ailleurs, ces rouleaux de manutention et de convoyage doivent être conçus et réalisés de sorte qu'ils assurent un bon guidage des produits tout au long du four tout en limitant le marquage thermique des produits.In addition, these handling and conveying rollers must be designed and manufactured so that they ensure good product guidance throughout the oven while limiting the thermal marking of the products.
En outre, la durée de vie des rouleaux durant laquelle ils conservent leur niveau de performance initial doit être suffisamment importante comparativement aux autres équipements mécaniques constituant le four.In addition, the life of the rollers during which they maintain their initial level of performance must be sufficiently important compared to other mechanical equipment constituting the oven.
EP 0 345 147 décrit des rouleaux constitués d'un arbre central refroidi comportant une pluralité de disques perpendiculaires à l'axe géométrique dudit arbre, chacun de ces disques étant pourvu d'une bande de roulement en contact avec le produit se déplaçant dans le four, les disques étant séparés par un manchon isolant.EP 0 345 147 discloses rollers consisting of a cooled central shaft having a plurality of discs perpendicular to the geometric axis of said shaft, each of these discs being provided with a tread in contact with the product moving in the furnace , the disks being separated by an insulating sleeve.
Cette technique comme l'ensemble de celles mises en œuvre aujourd'hui ne donne pas entièrement satisfaction, en particulier en raison d'une durée de vie trop limitée du rouleau, liée à la détérioration des manchons isolants provoquée par les contraintes mécaniques exercées par les mouvements de flexion de l'arbre central lors du passage des produits.This technique as all of those implemented today is not entirely satisfactory, in particular due to a too limited life of the roller, related to the deterioration of the insulating sleeves caused by the mechanical stresses exerted by the bending movements of the central shaft during the passage of products.
Les contraintes thermiques contribuent également à détériorer les manchons isolants. L'invention a pour but, surtout, de proposer une solution technique permettant de sensiblement réduire les contraintes mécaniques, et de préférence aussi les contraintes thermiques, sur les manchons isolants. Selon l'invention un rouleau, utilisé notamment dans les fours continus de réchauffage de produits longs, pour la manutention et le convoyage de produits sidérurgiques et en particulier de brames, comprenant un arbre central refroidi, en particulier par un liquide, sur lequel sont montés une pluralité de disques, servant de support aux produits à convoyer, disposés perpendiculairement à l'axe géométrique longitudinal du rouleau, écartés selon l'axe du rouleau et séparés par un manchon isolant, est caractérisé en ce que le manchon isolant est maintenu à chaque extrémité longitudinale par au moins une pièce froide solidaire de l'arbre et refroidie par l'arbre, avec un jeu axial entre le manchon et la pièce froide, et un jeu radial entre le manchon et l'arbre de sorte qu'un fléchissement éventuel de l'arbre peut se produire en fonctionnement sans provoquer de contrainte mécanique sensible sur le manchon isolant et que les transferts thermiques du manchon vers l'arbre, et des disques vers le manchon sont limités.Thermal stresses also contribute to deterioration of the insulating sleeves. The object of the invention is, above all, to propose a technical solution that makes it possible to substantially reduce the mechanical stresses, and preferably also the thermal stresses, on the insulating sleeves. According to the invention a roller, used in particular in continuous furnaces for heating long products, for the handling and conveying of steel products and in particular slabs, comprising a cooled central shaft, in particular by a liquid, on which are mounted a plurality of disks, serving as a support for the products to be conveyed, arranged perpendicularly to the longitudinal geometric axis of the roller, spaced along the axis of the roll and separated by an insulating sleeve, is characterized in that the insulating sleeve is maintained at each longitudinal end by at least one cold part integral with the shaft and cooled by the shaft, with an axial clearance between the sleeve and the cold part, and a radial clearance between the sleeve and the shaft so that a possible deflection of the shaft can occur in operation without causing significant mechanical stress on the insulating sleeve and that heat transfer from the sleeve to the arb re, and discs to the sleeve are limited.
Selon une première possibilité, le manchon est supporté radialement à chaque extrémité axiale par la pièce froide.According to a first possibility, the sleeve is supported radially at each axial end by the cold part.
Selon une autre possibilité, le manchon est supporté radialement par l'arbre. La pièce froide peut être distincte du disque voisin. Les zones de contact entre le manchon isolant et les pièces froides sont limitées aux zones d'extrémités axiales du manchon de sorte que ces zones de contact réduites et le jeu entre le manchon isolant et les pièces froides permettent de limiter le transfert de chaleur du manchon vers les pièces froides. La pièce froide peut être constituée par une bague épaulée ou par au moins deux taquets bloqués en rotation et en translation sur l'arbre central. Le blocage de la bague ou du taquet peut être effectué par soudage sur l'arbre. La pièce froide peut constituer en outre une pièce d'arrêt en translation et en rotation d'un disque, lequel peut être monté avec un jeu radial sur l'arbre, libre en rotation et en translation.Alternatively, the sleeve is supported radially by the shaft. The cold room may be distinct from the neighboring disk. The areas of contact between the insulating sleeve and the cold parts are limited to the axial end regions of the sleeve so that these reduced contact areas and the clearance between the insulating sleeve and the cold parts can limit the heat transfer of the sleeve. to cold rooms. The cold room may be constituted by a stepped ring or by at least two stops locked in rotation and in translation on the central shaft. Locking of the ring or cleat can be done by welding on the shaft. The cold room can also constitute a stop piece in translation and in rotation of a disc, which can be mounted with a radial play on the shaft, free in rotation and in translation.
Un espace radial intercalaire peut être prévu entre l'arbre et la surface cylindrique intérieure du manchon isolant ; la surface cylindrique extérieure du manchon isolant peut être libre.A spacing radial gap may be provided between the shaft and the inner cylindrical surface of the insulating sleeve; the outer cylindrical surface of the insulating sleeve may be free.
La surface cylindrique intérieure du manchon isolant peut être constituée d'une jupe cylindrique métallique autour de laquelle est moulée une matière isolante, en particulier du béton réfractaire. Le manchon peut, en variante, être constitué d'une succession d'écrans métalliques cylindriques séparés par des lames d'air.The inner cylindrical surface of the insulating sleeve may consist of a cylindrical metal skirt around which is molded an insulating material, in particular refractory concrete. The sleeve can, in alternatively, consist of a succession of cylindrical metal screens separated by air knives.
Les génératrices rectilignes de la jupe cylindrique peuvent s'étendre axialement au-dessus des pièces froides, lesquelles supportent radialement la jupe et le manchon, la jupe ayant un diamètre intérieur supérieur au diamètre extérieur de l'arbre d'une valeur déterminant la dimension radiale de l'espace intercalaire ; à l'intérieur de la jupe, vers chacune de ses extrémités axiales et du côté de la pièce froide opposé au disque voisin, est prévue une couronne, en saillie radiale vers l'intérieur, dans un plan orthogonal à l'axe géométrique de l'arbre ;le jeu axial et le jeu radial sont prévus, d'une part, entre le pièce froide et la face voisine de la couronne et, d'autre part, entre l'arbre et le diamètre de l'ouverture de la couronne entourant l'arbre.The rectilinear generatrices of the cylindrical skirt may extend axially above the cold parts, which radially support the skirt and the sleeve, the skirt having an internal diameter greater than the outer diameter of the shaft of a value determining the radial dimension. infill space; inside the skirt, towards each of its axial ends and on the side of the cold part opposite the adjacent disk, is provided a ring, projecting radially inwards, in a plane orthogonal to the geometric axis of the shaft, the axial clearance and the radial clearance are provided, on the one hand, between the cold part and the adjacent face of the crown and, on the other hand, between the shaft and the diameter of the opening of the crown surrounding the tree.
Selon une variante, le jeu radial est prévu entre le diamètre intérieur de la jupe et le diamètre extérieur de l'arbre et les extrémités axiales de la jupe présentent un décrochement radial vers l'extérieur suivi d'un retour cylindrique axial, la jupe est supportée radialement par l'arbre, et le jeu axial est prévu entre les faces en regard de la pièce froide et du décrochement.According to one variant, the radial clearance is provided between the inside diameter of the skirt and the outside diameter of the shaft and the axial ends of the skirt have a radially outward recess followed by an axial cylindrical return, the skirt is supported radially by the shaft, and the axial clearance is provided between the facing faces of the cold part and the recess.
Le manchon isolant peut être monté libre en rotation sur l'arbre. D'autres caractéristiques et avantages de l'invention apparaîtront dans la description qui suit avec référence aux dessins annexés mais qui n'a aucun caractère limitatif.The insulating sleeve can be rotatably mounted on the shaft. Other characteristics and advantages of the invention will appear in the description which follows with reference to the accompanying drawings but which has no limiting character.
Sur ces dessins :On these drawings:
Fig. 1 est une coupe longitudinale, suivant la ligne l-l de Fig.2, d'un rouleau selon un premier mode de réalisation de l'invention.Fig. 1 is a longitudinal section along line l-1 of FIG. 2 of a roll according to a first embodiment of the invention.
Fig. 2 est une coupe du rouleau suivant la ligne H-Il de Fig. 1.Fig. 2 is a section of the roller along line H-II of FIG. 1.
Fig. 3 est un détail de parties du rouleau de Fig. 1 , à plus grande échelle.Fig. 3 is a detail of parts of the roll of FIG. 1, on a larger scale.
Fig. 4 est une vue en perspective éclatée d'éléments du rouleau de Fig. 1.Fig. 4 is an exploded perspective view of elements of the roll of FIG. 1.
Fig. 5 est une vue en perspective éclatée d'un autre mode de réalisation des éléments de Fig. 4.Fig. 5 is an exploded perspective view of another embodiment of the elements of FIG. 4.
Fig. 6 est une coupe longitudinale, suivant la ligne Vl-Vl de Fig.7, d'un rouleau selon un deuxième mode de réalisation de l'invention. Fig. 7 est une coupe du rouleau suivant la ligne VII-VII de Fig. 6.Fig. 6 is a longitudinal section along the line VI-VI of FIG. 7 of a roller according to a second embodiment of the invention. Fig. 7 is a section of the roller along the line VII-VII of FIG. 6.
Fig. 8 est une coupe longitudinale, suivant la ligne VIII-VIII de Fig.9, d'un rouleau selon un troisième mode de réalisation de l'invention. Fig. 9 est une coupe du rouleau suivant la ligne IX-IX de Fig. 8, et Fig. 10 est un détail de parties du rouleau de Fig. 8, à plus grande échelle.Fig. 8 is a longitudinal section, along the line VIII-VIII of Fig.9, of a roller according to a third embodiment of the invention. Fig. 9 is a section of the roller along the line IX-IX of FIG. 8, and FIG. 10 is a detail of parts of the roll of FIG. 8, on a larger scale.
En se référant à Fig. 1 à Fig. 3, on peut voir qu'un rouleau R selon l'invention comprend un arbre central creux 1 d'axe géométrique sensiblement horizontal, sur lequel sont montés des disques 2, qui servent de support à des produits sidérurgiques 3 à convoyer, par exemple des brames à température relativement élevée, notamment de l'ordre de 10000C ou plus, traversant un four de réchauffage non représenté. L'arbre creux 1 comporte, à l'intérieur, un tube coaxial 1a définissant, entre sa surface externe et la surface interne de l'arbre 1 , un espace annulaire 1b. L'arbre 1 est refroidi par une circulation d'eau, par exemple qui arrive dans l'espace annulaire 1 b et revient par le tube 1 a.Referring to FIG. 1 to Fig. 3, it can be seen that a roller R according to the invention comprises a hollow central shaft 1 of substantially horizontal geometric axis, on which are mounted disks 2, which serve as support for steel products 3 to be conveyed, for example slabs with a relatively high temperature, in particular of the order of 1000 ° C. or more, passing through a reheating furnace, not shown. The hollow shaft 1 comprises, inside, a coaxial tube 1a defining, between its outer surface and the inner surface of the shaft 1, an annular space 1b. The shaft 1 is cooled by a circulation of water, for example which arrives in the annular space 1b and returns through the tube 1a.
Les disques 2 sont disposés perpendiculairement à l'axe longitudinal du rouleau R, écartés selon cet axe. Deux disques 2 successifs sont séparés par un manchon isolant 4 cylindrique. La périphérie de chaque disque 2 constitue une bande de roulement 2a en contact avec le produit 3. Cette bande de roulement 2a s'étend de part et d'autre du plan médian du disque 2. Le disque 2 comporte, au niveau de l'arbre 1 , une collerette de guidage 2b dont l'étendue axiale est optimisée pour permettre un guidage efficace du disque 2 sur l'arbre 1. Le diamètre intérieur de la collerette 2b est légèrement supérieur au diamètre extérieur de l'arbre 1 , d'une valeur permettant un montage libre en rotation et en translation des disques 2 sur l'arbre 1. Les disques 2 ne sont donc pas directement solidaires de l'arbre 1. Une interface d'air existe entre la collerette 2b et l'arbre 1 sur la majeure partie de la circonférence, et freine la transmission de chaleur du disque 2 à l'arbre 1.The discs 2 are arranged perpendicular to the longitudinal axis of the roll R, spaced along this axis. Two successive discs 2 are separated by a cylindrical insulating sleeve 4. The periphery of each disc 2 constitutes a tread 2a in contact with the product 3. This tread 2a extends on either side of the median plane of the disc 2. The disc 2 comprises, at the level of the 1, a guide flange 2b whose axial extent is optimized to allow effective guiding of the disc 2 on the shaft 1. The inner diameter of the flange 2b is slightly greater than the outer diameter of the shaft 1, a value allowing free mounting in rotation and in translation of the disks 2 on the shaft 1. The disks 2 are not therefore directly integral with the shaft 1. An air interface exists between the collar 2b and the shaft 1 over most of the circumference, and brakes the heat transfer from disk 2 to shaft 1.
Le manchon isolant 4 constitue un volume entièrement de révolution autour de l'axe du rouleau, autorisant la réalisation d'une pièce simple et robuste, avantageusement en béton réfractaire.The insulating sleeve 4 constitutes a volume entirely of revolution about the axis of the roll, allowing the production of a simple and robust part, advantageously made of refractory concrete.
Le manchon isolant 4 est maintenu à chaque extrémité longitudinale par au moins une pièce froide 5 avec un jeu axial Ja (Fig.3) entre le manchon 4 et la pièce froide 5 et un jeu radial Jr (Fig.3) entre le manchon 4 et l'arbre 1. Les jeux Ja et Jr permettent un fléchissement éventuel de l'arbre 1 , en fonctionnement, sans provoquer de contrainte mécanique sensible sur le manchon 4. Les valeurs des jeux Ja et Jr sont déterminées selon les conditions de fonctionnement et les dimensions des rouleaux. A titre indicatif, non limitatif, les jeux Ja et Jr sont en générai supérieurs à deux millimètres.The insulating sleeve 4 is held at each longitudinal end by at least one cold part 5 with an axial clearance Ja (FIG. 3) between the sleeve 4 and the cold part 5 and a radial clearance Jr (FIG. 3) between the sleeve 4. and the shaft 1. The sets Ja and Jr allow a possible deflection of the shaft 1, in operation, without causing significant mechanical stress on the sleeve 4. The values of the sets Ja and Jr are determined according to the operating conditions and the dimensions of rolls. As an indication, not limiting, the games Ja and Jr are generally greater than two millimeters.
Selon les modes de réalisation des Fig. 1 à 3, et Fig. 6,7, le manchon 4 est supporté radialement par la pièce froide 5. Un jeu radial Er existe entre le manchon 4 et la pièce 5. Le jeu Er est de préférence inférieur à la moitié du jeu radial Jr entre ie manchon 4 et l'arbre 1.According to the embodiments of Figs. 1 to 3, and FIG. 6.7, the sleeve 4 is supported radially by the cold part 5. A radial clearance Er exists between the sleeve 4 and the part 5. The clearance Er is preferably less than half the radial clearance Jr between the sleeve 4 and the tree 1.
Comme il apparaît sur les dessins, le manchon 4 peut être formé d'un assemblage de plusieurs pièces solidaires. Les jeux sont à considérer entre la pièce froide 5, l'arbre 1 , et la surface la plus proche de la pièce solidaire du manchon 4.As it appears in the drawings, the sleeve 4 may be formed of an assembly of several integral parts. The games are to be considered between the cold part 5, the shaft 1, and the nearest surface of the part integral with the sleeve 4.
La pièce froide 5 peut être distincte du disque 2 voisin de sorte qu'une solution de continuité est formée entre eux et crée une barrière thermique. La pièce 5, refroidie par conduction par l'arbre 1 et séparée du disque 2, se trouve en fonctionnement à une température qui est sensiblement inférieure à celle du disque 2 voisin.The cold room 5 may be distinct from the neighboring disc 2 so that a continuity solution is formed between them and creates a thermal barrier. The part 5, cooled by conduction by the shaft 1 and separated from the disk 2, is in operation at a temperature which is substantially lower than that of the neighboring disc 2.
Les extrémités longitudinales du manchon 4 sont écartées axialement du disque 2 voisin d'une distance k, au moins supérieure au double de Ja , de sorte que le manchon isolant 4 n'est pas en contact avec les disques chauds 2. Les contraintes thermiques et mécaniques sur le manchon 4 s 'en trouvent réduites.The longitudinal ends of the sleeve 4 are spaced axially from the disc 2 adjacent to a distance k, at least greater than twice that of Ja, so that the insulating sleeve 4 is not in contact with the hot discs 2. The thermal stresses and The mechanical joints on the sleeve 4 are reduced.
Dans la même optique de limiter les échanges thermiques, la mise en œuvre de zones de contact réduites aux extrémités axiales du manchon, notamment en introduisant des jeux radiaux et axiaux, entre le manchon isolant 4 et les pièces froides 5 permet de limiter le transfert de chaleur du manchon isolant 4 vers les pièces froides 5.In the same perspective of limiting the heat exchanges, the implementation of reduced contact areas at the axial ends of the sleeve, in particular by introducing radial and axial clearances, between the insulating sleeve 4 and the cold parts 5 makes it possible to limit the transfer of heat insulation sleeve 4 to cold rooms 5.
Chaque pièce froide 5 peut être constituée par une bague épaulée 6 (Fig. 4) ou par au moins deux taquets 7 (Fig. 5) bloqués en rotation et en translation sur l'arbre central 1. Le blocage peut être effectué par soudage sur l'arbre 1 de la bague 6 ou du taquet 7, réalisés en un acier autorisant ce soudage. Le soudage assure également le refroidissement des pièces 5 par conduction.Each cold part 5 may be constituted by a shoulder ring 6 (FIG 4) or by at least two tabs 7 (FIG 5) locked in rotation and in translation on the central shaft 1. The locking can be performed by welding on the shaft 1 of the ring 6 or the cleat 7, made of a steel allowing this welding. The welding also ensures the cooling of the parts 5 by conduction.
Avantageusement, les pièces froides 5 servent en outre à arrêter en translation et en rotation le disque 2 sur l'arbre 1. Pour cela, les pièces froides 5 comportent des épaulements 5a en saillie axiale propres à s'engager dans des échancrures 2c correspondantes prévues dans les collerettes 2b des disques 2. Deux échancrures 2c diamétralement opposées sont montrées sur Fig.4 et 5. Il est possible d'en prévoir plus, en particulier trois espacées angulairement de 120°.Advantageously, the cold parts 5 further serve to stop in translation and in rotation the disk 2 on the shaft 1. For this, the cold parts 5 comprise shoulders 5a in axial projection adapted to engage in corresponding notches 2c provided in the flanges 2b of the discs 2. Two notches 2c diametrically opposite are shown in Fig.4 and 5. It is possible to provide more, especially three angularly spaced 120 °.
Les disques 2 étant montés avec un jeu radial sur l'arbre, ce jeu permet une libre dilatation des disques 2 par rapport à l'arbre central 1 , supprimant ainsi les contraintes thermomécaniques entre ces pièces.The discs 2 being mounted with a radial clearance on the shaft, this clearance allows free expansion of the discs 2 relative to the central shaft 1, thus removing the thermomechanical stresses between these parts.
Un espace intercalaire 8 peut être prévu entre l'arbre 1 et le manchon isolant 4.An interspace 8 may be provided between the shaft 1 and the insulating sleeve 4.
Le manchon isolant 4 peut comprendre une jupe cylindrique métallique intérieure 9 entourée, et solidaire, d'une enveloppe moulée en béton réfractaire 4a (Fig. 1 à 3) dont la surface extérieure est libre, ou formée d'une succession d'écrans métalliques 4b (Fig.6 et 7) séparés par des lames d'air. Les écrans métalliques 4b s'opposent aux transferts thermiques radiatifs entre l'atmosphère du four et l'arbre refroidi 1 du rouleau R.The insulating sleeve 4 may comprise an inner metal cylindrical skirt 9 which is surrounded by and integral with a molded refractory concrete casing 4a (FIGS. 1 to 3) whose outer surface is free, or formed of a series of metal screens. 4b (Fig.6 and 7) separated by air knives. The metal screens 4b oppose the radiative heat transfer between the atmosphere of the furnace and the cooled shaft 1 of the roller R.
Selon les réalisations des Fig.1 à 3, et Fig.6 et 7, les génératrices rectilignes de la jupe cylindrique 9 s'étendent axialement (voir Fig.3) au- dessus des pièces froides 5, lesquelles supportent radialement la jupe 9 et le manchon 4. La jupe 9 a un diamètre intérieur supérieur au diamètre extérieur de l'arbre 1 d'une valeur h déterminant la dimension radiale de l'espace 8. A l'intérieur de la jupe 9, vers chacune de ses extrémités axiales et du côté du moyen d'arrêt 5 opposé au disque 2 voisin, est prévue une couronne 10, en saillie radiale vers l'intérieur, dans un plan orthogonal à l'axe géométrique. Les jeux Ja et Jr, mentionnés précédemment, sont prévus d'une part entre la pièce froide 5 et la face voisine de la couronne 10 et, d'autre part, entre l'arbre 1 et le diamètre de l'ouverture de la couronne 10 entourant l'arbre 1. Fig. 8 à 10 illustrent un autre mode de réalisation d'un rouleau R selon l'invention où l'espace intercalaire 8 de Fig.3 est supprimé. Le manchon isolant 4 comprend encore une jupe cylindrique métallique 9c intérieure entourée, et solidaire, d'une enveloppe isolante 4c, par exemple en béton réfractaire. Le jeu radial Jr est prévu entre le diamètre intérieur de la jupe 9c et le diamètre extérieur de l'arbre 1 , lequel supporte radialement la jupe 9c et le manchon 4. Les extrémités axiales de la jupe 9c présentent un décrochement radial 10c vers l'extérieur suivi d'un retour cylindrique axial 10d qui surmonte la pièce froide 5. Le jeu axial Ja est prévu entre les faces en regard de la pièce froide 5 et du décrochement 10c. Entre la pièce 5 et le manchon 4 /jupe 9c existe un jeu Nr égal à deux fois au moins le jeu Jr entre l'arbre 1 et le manchon. Le manchon isolant 4 peut être monté libre en rotation sur l'arbrel , sans être entraîné par la bague 6 ou les taquets 7.According to the embodiments of FIGS. 1 to 3, and FIGS. 6 and 7, the rectilinear generatrices of the cylindrical skirt 9 extend axially (see FIG. 3) above the cold parts 5, which radially support the skirt 9 and the sleeve 4. The skirt 9 has an inner diameter greater than the outer diameter of the shaft 1 by a value h determining the radial dimension of the space 8. Inside the skirt 9, towards each of its axial ends and on the side of the stop means 5 opposite the adjacent disk 2, there is provided a ring 10, projecting radially inwards, in a plane orthogonal to the geometric axis. The games Ja and Jr, mentioned above, are provided on the one hand between the cold part 5 and the adjacent face of the ring 10 and, on the other hand, between the shaft 1 and the diameter of the opening of the ring 10 surrounding the shaft 1. FIG. 8 to 10 illustrate another embodiment of a roll R according to the invention wherein the spacer 8 of Fig.3 is deleted. The insulating sleeve 4 further comprises a cylindrical metal skirt inner 9c surrounded and secured to an insulating casing 4c, for example refractory concrete. The radial clearance Jr is provided between the inner diameter of the skirt 9c and the outer diameter of the shaft 1, which radially supports the skirt 9c and the sleeve 4. The axial ends of the skirt 9c have a radial recess 10c towards the outside followed by an axial cylindrical return 10d which overcomes the cold part 5. The axial play Ja is provided between the facing faces of the cold part 5 and the recess 10c. Between the piece 5 and the sleeve 4 / skirt 9c there is a clearance Nr equal to at least twice the clearance Jr between the shaft 1 and the sleeve. The insulating sleeve 4 can be mounted free to rotate on the arbrel, without being driven by the ring 6 or the cleats 7.
Le fonctionnement du rouleau R résulte des explications qui précèdent. Au passage d'une brame 3, l'arbre 1 peut subir un fléchissement qui entraînera une diminution des jeux Ja et/ou Jr sans toutefois les supprimer, de sorte que les manchons 4 sont protégés des contraintes mécaniques et thermiques. The operation of the roller R results from the foregoing explanations. At the passage of a slab 3, the shaft 1 can undergo a deflection which will cause a decrease in the clearances Ja and / or Jr without however removing them, so that the sleeves 4 are protected from mechanical and thermal stresses.

Claims

REVENDICATIONS
1. Rouleau (R), utilisé notamment dans les fours continus de réchauffage de produits longs, pour la manutention et le convoyage de produits sidérurgiques, en particulier de brames, comprenant un arbre central refroidi (1) sur lequel sont montés une pluralité de disques (2) , servant de support aux produits (3) à convoyer, disposés perpendiculairement à l'axe géométrique longitudinal du rouleau (R), écartés selon l'axe du rouleau et séparés par un manchon isolant (4), caractérisé en ce que le manchon isolant (4) est maintenu à chaque extrémité longitudinale par au moins une pièce froide (5) solidaire de l'arbre (1) et refroidie par l'arbre, avec un jeu axial (Ja) entre le manchon (4) et la pièce froide (5) et un jeu radial (Jr) entre le manchon (4) et l'arbre (1 ) de sorte qu'un fléchissement éventuel de l'arbre (1 ) peut se produire en fonctionnement sans provoquer de contrainte mécanique sensible sur le manchon isolant (4).et que les transferts thermiques du manchon (4) vers l'arbre (1), et des disques (2) vers le manchon (4) sont limités.Roller (R), used especially in continuous furnaces for heating long products, for handling and conveying steel products, in particular slabs, comprising a cooled central shaft (1) on which a plurality of disks are mounted (2), serving as support for the products (3) to be conveyed, arranged perpendicularly to the longitudinal geometric axis of the roll (R), spaced along the axis of the roll and separated by an insulating sleeve (4), characterized in that the insulating sleeve (4) is held at each longitudinal end by at least one cold part (5) integral with the shaft (1) and cooled by the shaft, with an axial clearance (Ja) between the sleeve (4) and the cold part (5) and a radial clearance (Jr) between the sleeve (4) and the shaft (1) so that a possible deflection of the shaft (1) can occur in operation without causing mechanical stress sensitive on the insulating sleeve (4) and that the thermal transfers of the nchon (4) to the shaft (1), and discs (2) to the sleeve (4) are limited.
2. Rouleau selon la revendication 1 , caractérisé en ce que le manchon (4) est supporté radialement à chaque extrémité axiale par une pièce froide (5).2. Roller according to claim 1, characterized in that the sleeve (4) is supported radially at each axial end by a cold part (5).
3. Rouleau selon la revendication 1 , caractérisé en ce que le manchon (4) est supporté radialement par l'arbre (1 ).3. Roller according to claim 1, characterized in that the sleeve (4) is supported radially by the shaft (1).
4. Rouleau selon l'une des revendications précédentes, caractérisé en ce que la pièce froide (5) est distincte du disque (2) voisin.4. Roller according to one of the preceding claims, characterized in that the cold room (5) is distinct from the disc (2) neighbor.
5. Rouleau selon l'une des revendications précédentes, caractérisé en ce que la pièce froide (5) est constituée par une bague épaulée (6) bloquée en rotation et en translation sur l'arbre central (1 ).5. Roller according to one of the preceding claims, characterized in that the cold part (5) is constituted by a shoulder ring (6) locked in rotation and in translation on the central shaft (1).
6 .Rouleau selon l'une des revendications 1 à 4, caractérisé en ce que la pièce froide (5) est constituée par au moins deux taquets (7) bloqués en rotation et en translation sur l'arbre central (1 ). 6. Roll according to one of claims 1 to 4, characterized in that the cold part (5) is constituted by at least two stops (7) locked in rotation and in translation on the central shaft (1).
7. Rouleau selon l'une quelconque des revendications précédentes, caractérisé en ce que la pièce froide (5), soudée sur l'arbre (1 ) refroidi, constitue en outre une pièce d'arrêt en translation et en rotation d'un disque7. Roller according to any one of the preceding claims, characterized in that the cold part (5), welded to the shaft (1) cooled, further constitutes a stop piece in translation and in rotation of a disk.
(2).(2).
8. Rouleau selon la revendication 7, caractérisé en ce que le disque (2) est monté avec un jeu radial sur l'arbre (1), libre en rotation et en translation.8. Roller according to claim 7, characterized in that the disk (2) is mounted with a radial clearance on the shaft (1), free in rotation and in translation.
9. Rouleau selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comporte un espace intercalaire (8) entre l'arbre (1 ) et le manchon isolant (4).9. Roller according to any one of the preceding claims, characterized in that it comprises an interspace (8) between the shaft (1) and the insulating sleeve (4).
10. Rouleau selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le manchon isolant (4) comprend une jupe cylindrique métallique intérieure (9, 9c).10. Roller according to any one of claims 1 to 8, characterized in that the insulating sleeve (4) comprises an inner cylindrical metal skirt (9, 9c).
11. Rouleau selon la revendication 10, caractérisé en ce que le manchon isolant (4) comprend une enveloppe de béton réfractaire moulée autour de la jupe cylindrique (9,9c).11. Roller according to claim 10, characterized in that the insulating sleeve (4) comprises a refractory concrete casing molded around the cylindrical skirt (9, 9c).
12. Rouleau selon la revendication 10, caractérisé en ce que le manchon isolant (4) comprend une succession d'écrans métalliques cylindriques (4b) séparés par des lames d'air.12. Roll according to claim 10, characterized in that the insulating sleeve (4) comprises a succession of cylindrical metal screens (4b) separated by air knives.
13. Rouleau selon la revendication 10, caractérisé en ce que les génératrices rectilignes de la jupe cylindrique (9) s'étendent axialement au-dessus des pièces froides (5), lesquelles supportent radialement la jupe (9) et le manchon (4) ; la jupe (9) a un diamètre intérieur supérieur au diamètre extérieur de l'arbre d'une valeur (h) déterminant la dimension radiale d'un espace intercalaire (8) ; et à l'intérieur de la jupe, vers chacune de ses extrémités axiales et du côté de la pièce froide (5) opposé au disque (2) voisin, est prévue une couronne (10), en saillie radiale vers l'intérieur, dans un plan orthogonal à l'axe géométrique de l'arbre, les jeux (Ja, Jr) étant prévus, d'une part, entre la pièce froide (5) et la face voisine de la couronne (10) et, d'autre part, entre l'arbre (1 ) et le diamètre de l'ouverture de la couronne (10) entourant l'arbre (1). 13. Roller according to claim 10, characterized in that the rectilinear generatrices of the cylindrical skirt (9) extend axially above the cold parts (5), which radially support the skirt (9) and the sleeve (4). ; the skirt (9) has an inside diameter greater than the outside diameter of the shaft of a value (h) determining the radial dimension of a spacer space (8); and inside the skirt, towards each of its axial ends and on the side of the cold part (5) opposite the adjacent disc (2), is provided a ring (10) projecting radially inwards, in a plane orthogonal to the geometric axis of the shaft, the clearances (Ja, Jr) being provided, on the one hand, between the cold part (5) and the adjacent face of the ring (10) and, on the other hand, part, between the shaft (1) and the diameter of the opening of the ring (10) surrounding the shaft (1).
14. Rouleau selon la revendication 10, caractérisé en ce que le manchon (4) est supporté radialement par l'arbre (1), le jeu radial (Jr) est prévu entre le diamètre intérieur de la jupe (9c) et le diamètre extérieur de l'arbre (1 ), et les extrémités axiales de la jupe présentent un décrochement radial (10c) vers l'extérieur suivi d'un retour cylindrique axial (10d), le jeu axial (Ja) étant prévu entre les faces en regard de la pièce froide (5) et du décrochement (10c).14. Roller according to claim 10, characterized in that the sleeve (4) is supported radially by the shaft (1), the radial clearance (Jr) is provided between the inner diameter of the skirt (9c) and the outer diameter of the shaft (1), and the axial ends of the skirt have a radial recess (10c) towards the outside followed by an axial cylindrical return (10d), the axial clearance (Ja) being provided between the faces facing each other. cold room (5) and recess (10c).
15. Rouleau selon la revendication 2, caractérisé en ce que les zones de contact entre le manchon isolant (4) et les pièces froides (5) sont limitées aux zones d'extrémités axiales du manchon de sorte que ces zones de contact réduites et le jeu entre le manchon isolant et les pièces froides permet de limiter le transfert de chaleur du manchon vers les pièces froides. 15. Roller according to claim 2, characterized in that the contact areas between the insulating sleeve (4) and the cold parts (5) are limited to the axial end regions of the sleeve so that these reduced contact areas and the play between the insulating sleeve and the cold parts makes it possible to limit heat transfer from the sleeve to the cold rooms.
EP06726144A 2005-04-07 2006-03-24 Cooled roller for handling steel products Not-in-force EP1880157B1 (en)

Priority Applications (1)

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PL06726144T PL1880157T3 (en) 2005-04-07 2006-03-24 Cooled roller for handling steel products

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FR0503476A FR2884306B1 (en) 2005-04-07 2005-04-07 COOLED ROLL FOR HANDLING STEEL PRODUCTS
PCT/FR2006/000657 WO2006106203A1 (en) 2005-04-07 2006-03-24 Cooled roller for handling steel products

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EP (1) EP1880157B1 (en)
CN (1) CN101151498B (en)
AT (1) ATE401543T1 (en)
AU (1) AU2006231231B2 (en)
BR (1) BRPI0610527A2 (en)
CA (1) CA2603625A1 (en)
DE (1) DE602006001864D1 (en)
EA (1) EA010918B1 (en)
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FR (1) FR2884306B1 (en)
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AU2006231231A1 (en) 2006-10-12
DE602006001864D1 (en) 2008-08-28
EA010918B1 (en) 2008-12-30
EP1880157B1 (en) 2008-07-16
ATE401543T1 (en) 2008-08-15
FR2884306A1 (en) 2006-10-13
PL1880157T3 (en) 2009-02-27
AU2006231231B2 (en) 2010-05-27
FR2884306B1 (en) 2007-05-11
US20080171298A1 (en) 2008-07-17
BRPI0610527A2 (en) 2012-11-27
ES2309958T3 (en) 2008-12-16
EA200702186A1 (en) 2008-02-28
CN101151498A (en) 2008-03-26
ZA200708030B (en) 2008-06-25
PT1880157E (en) 2008-10-09
CN101151498B (en) 2010-06-16
WO2006106203A1 (en) 2006-10-12
US8047838B2 (en) 2011-11-01
CA2603625A1 (en) 2006-10-12

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