EP0021884B1 - Apparatus for cooling elongate hot rolled products - Google Patents

Apparatus for cooling elongate hot rolled products Download PDF

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Publication number
EP0021884B1
EP0021884B1 EP19800400740 EP80400740A EP0021884B1 EP 0021884 B1 EP0021884 B1 EP 0021884B1 EP 19800400740 EP19800400740 EP 19800400740 EP 80400740 A EP80400740 A EP 80400740A EP 0021884 B1 EP0021884 B1 EP 0021884B1
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EP
European Patent Office
Prior art keywords
product
roller
cooling
cooling tube
motion
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.)
Expired
Application number
EP19800400740
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German (de)
French (fr)
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EP0021884A1 (en
Inventor
Françis Bertolotti
Jean-Claude Daverio
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Institut de Recherches de la Siderurgie Francaise IRSID
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Institut de Recherches de la Siderurgie Francaise IRSID
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Publication of EP0021884A1 publication Critical patent/EP0021884A1/en
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Publication of EP0021884B1 publication Critical patent/EP0021884B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0224—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for wire, rods, rounds, bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/006—Pinch roll sets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/163—Rolling or cold-forming of concrete reinforcement bars or wire ; Rolls therefor

Definitions

  • the invention relates to an installation for cooling long moving products. It relates more particularly to the entrainment of these products during the cooling to which they are subjected after rolling.
  • German patent application DOS No. 2,539,422 is an installation comprising a line of tubular boxes filled with a coolant through which the product to be cooled passes, the boxes being separated from each other by rollers ensuring the product drive.
  • the current trend is to use more efficient cooling devices consisting essentially of a cooling tube, in which the product is not immersed in a static body of water, but surrounded by a blade. water circulating at high speed parallel to the product.
  • the tube is equipped at one end with a water supply head and at the other with a separator to dissociate the product from its liquid envelope. It is thus possible, for products of relatively large diameter, made of weldable low carbon steel, to follow a cooling law fast enough for the mechanical characteristics obtained to make subsequent work hardening unnecessary.
  • the object of the present invention is precisely to remedy this drawback. More specifically, the invention proposes to provide a solution to the problem which consists in being able to equip a water-blade cooling tube with a device for driving the product to be cooled without, however, adversely affecting the movement of the product, nor to the circulation of the water layer, or to the tightness of the assembly.
  • the subject of the invention is an installation for cooling long products in movement surrounded by a cooling liquid envelope comprising a cooling tube provided at one of its ends with a coolant supply head. and, at the other end, a separator for dissociating the product from its liquid envelope, installation in which the cooling tube is equipped with at least one roller drive device for the product, characterized in that the roller is mounted horizontally in a box provided, on the one hand, with two connections connected to the cooling tube and respectively defining an inlet and an outlet of the box to allow the passage of the product in a straight line through this box and, on the other hand, a cover whose inner face shaped as a semi-circular channel defines with the roller a passage for the product and the liquid envelope which surrounds it, and in that, relative to the s ens of movement of said product, the inlet connector has a cylindrical passage followed by a convergent and the outlet connector has a cylindrical passage preceded by a convergent.
  • the drive device characteristic of the invention essentially consists of a roller 1 placed inside a sealed box 2 and rotated by a motor 3.
  • the box consists of a bottom 4, two walls side 5 and 6 and a cover 7.
  • the roller 1 is mounted on an axis 8 carried by two rolling bearings 9 and 10 disposed respectively in the side walls 5 and 6.
  • the end of the axis carried by the bearing 10 crosses the wall 6 and is connected to the motor 3 which ensures the rotation of the assembly, at the chosen speed, in the direction of travel of the product.
  • the latter has not been shown, so as not to overload the figures, but its direction of travel is indicated by an arrow in FIG. 2.
  • the other end of the axis 8 is protected by a cover 11 fixed to the wall 5 by screws such as 12.
  • Two pieces of elastic material 13 and 14 respectively provide a flexible connection between the axis 8 and the walls 5 and 6.
  • the cover 7 has a semi-cylindrical recess 15 intended to serve as a passage for the product.
  • This cover 7 is connected to the cooling tube, as can be seen in FIG. 2, by two tubular ends 16 and 17.
  • the end piece 16 In the direction of travel of the product, the end piece 16 has a first cylindrical passage extended by a converging part and the end piece 17 has a cylindrical passage preceded by a converging part in order to facilitate the introduction and the exit of the product into the device.
  • the cover 7 is fixed to the side walls by screws such as 18.
  • An annular groove 19 is formed on the periphery of the roller 1 in order to ensure better contact with the product.
  • the latter accompanied by its liquid envelope therefore penetrates through the nozzle 16, comes into contact with the roller and exits through the nozzle 17 at higher speed.
  • the passage delimited by the recess 15 and the groove 19 is less than the inside diameter of the cooling tube to allow the device to perform its centering function.
  • Part of the liquid envelope therefore passes through the space delimited by the roller 1 and the bottom 4 of the box. O-rings are provided wherever their presence is necessary to ensure the tightness of the assembly.
  • the roller can in particular be of elliptical section in order to give the product a lateral movement to destabilize the vapor films which may possibly form.
  • provision can be made to have blades at the ends of the groove in order to prevent water from stagnating at the bottom of the box.
  • the number and position of the devices according to the invention is not limited: they can replace a single centering device, this may be sufficient in certain cases to keep the speed constant, some or all of these devices.
  • the rollers can be placed under the product as in the example described, in staggered rows, one below followed by another above, in order to obtain a straightening effect. Two superimposed rollers can be placed in the same box, the product passing between the two. Finally, some or all of the rollers are not necessarily driven by a motor, their passive role then being identical to that played by the rollers with which conventional cooling installations are provided.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)

Description

L'invention concerne une installation de refroidissement de produits longs en défilement. Elle a trait plus particulièrement à l'entraînement de ces produits lors du refroidissement auquel ils sont soumis après laminage.The invention relates to an installation for cooling long moving products. It relates more particularly to the entrainment of these products during the cooling to which they are subjected after rolling.

Les produits longs, notamment les barres et les ronds à béton, à la sortie des cages finisseuses, subissent un refroidissement contrôlé destiné à leur conférer la structure et les caractéristiques mécaniques souhaitées. Ce traitement thermique est effectué sur les produits en défilement, leur entraînement étant généralement assuré par de simples rouleaux. Lorsque le refroidissement est effectué par aspersion d'eau au moyen de rampes de pulvérisation disposées au-dessus des produits, les rouleaux sont en nombre suffisant et régulièrement espacés et ils permettent au produit de conserver une vitesse élevée pendant toute la traversée de l'installation de refroidissement.Long products, in particular bars and concrete bars, at the exit of the finishing cages, undergo controlled cooling intended to give them the desired structure and mechanical characteristics. This heat treatment is carried out on the moving products, their drive being generally provided by simple rollers. When the cooling is carried out by sprinkling of water by means of spraying booms arranged above the products, the rollers are in sufficient number and regularly spaced and they allow the product to maintain a high speed throughout the crossing of the installation. cooling.

On connait également, par la demande de brevet allemand DOS n° 2 539 422, une installation comprenant une ligne de caissons tubulaires remplis d'un liquide de refroidissement traversé par le produit à refroidir, les caissons étant séparés entre eux par des galets assurant l'entraînement du produit.Also known, from German patent application DOS No. 2,539,422, is an installation comprising a line of tubular boxes filled with a coolant through which the product to be cooled passes, the boxes being separated from each other by rollers ensuring the product drive.

Celui-ci passe ainsi d'un caisson au suivant sans que des moyens de communication étanche à l'eau soient prévus entre deux caissons consécutifs à l'endroit des galets.This passes from one box to the next without watertight communication means being provided between two consecutive boxes at the location of the rollers.

En fait, dans des installations de ce type, l'étanchéité n'est pas un problème crucial car, bien que renouvelée en permanence, la masse d'eau de chaque caisson reste pratiquement immobile par rapport au produit en défilement de sorte que les seules fuites d'eau, au demeurant très minimes, correspondent à la fraction de liquide entraîne hors des caisson par le produit en défilement.In fact, in installations of this type, sealing is not a crucial problem because, although constantly renewed, the mass of water in each box remains practically immobile relative to the product in movement so that the only water leaks, which are very minimal, correspond to the fraction of liquid entrained out of the casing by the moving product.

En revanche, la tendance actuelle est d'employer des dispositifs de refroidissement plus efficaces constitués essentiellement d'un tube de refroidissement, dans lequel le produit est non pas en immersion dans une masse d'eau statique, mais entouré d'une lame d'eau circulant à grande vitesse parallèlement au produit. Le tube est équipé à l'une de ses extrémités d'une tête d'alimentation en eau et à l'autre d'un séparateur pour dissocier le produit de son enveloppe liquide. On peut ainsi, pour des produits de diamètre relativement grand, en acier soudable à bas carbone, suivre une loi de refroidissement suffisamment rapide pour que les caractéristiques mécaniques obtenues rendent non nécessaire un écrouissage ultérieur.On the other hand, the current trend is to use more efficient cooling devices consisting essentially of a cooling tube, in which the product is not immersed in a static body of water, but surrounded by a blade. water circulating at high speed parallel to the product. The tube is equipped at one end with a water supply head and at the other with a separator to dissociate the product from its liquid envelope. It is thus possible, for products of relatively large diameter, made of weldable low carbon steel, to follow a cooling law fast enough for the mechanical characteristics obtained to make subsequent work hardening unnecessary.

Toutefois, pendant la traversée du tube, le produit ne peut plus être en contact avec les rouleaux, comme c'était le cas dans les installations munies de rampes d'aspersion, et dans certains cas, sa vitesse peut décroître de façon sensible.However, during the passage of the tube, the product can no longer be in contact with the rollers, as was the case in installations fitted with spray bars, and in some cases its speed may decrease significantly.

La présente invention a précisément pour but de remédier à cet inconvénient. Plus précisément, l'invention se propose d'apporter une solution au problème qui consiste à pouvoir équiper un tube de refroidissement par lame d'eau d'un dispositif d'entraînement du produit à refroidir sans nuire pour autant au défilement du produit, ni à la circulation de la lame d'eau, ni à l'étanchéité de l'ensemble.The object of the present invention is precisely to remedy this drawback. More specifically, the invention proposes to provide a solution to the problem which consists in being able to equip a water-blade cooling tube with a device for driving the product to be cooled without, however, adversely affecting the movement of the product, nor to the circulation of the water layer, or to the tightness of the assembly.

A cet effet, l'invention a pour objet une installation de refroidissement de produits longs en défilement entourés d'une enveloppe liquide de refroidissement comprenant un tube de refroidissement pourvu à l'une de ses extrémités d'une tête d'alimentation en liquide refroidissant et, à l'autre extrémité, d'un séparateur pour dissocier le produit de son enveloppe liquide, installation dans laquelle le tube de refroidissement est équipé d'au moins un dispositif d'entraînement à galet pour le produit caractérisée en ce que le galet est monté à l'horizontale dans un caisson pourvu, d'une part, de deux raccords reliés au tube de refroidissement et définissant respectivement une entrée et une sortie du caisson pour permettre le passage du produit en ligne droite au travers de ce caisson et, d'autre part, d'un couvercle dont la face intérieure conformée en canal semi-circulaire définit avec le galet un passage pour le produit et l'enveloppe liquide qui l'entoure, et en ce que, par rapport au sens de défilement dudit produit, le raccord d'entrée présente un passage cylindrique suivi d'un convergent et le raccord de sortie présente un passage cylindrique précédé d'un convergent.To this end, the subject of the invention is an installation for cooling long products in movement surrounded by a cooling liquid envelope comprising a cooling tube provided at one of its ends with a coolant supply head. and, at the other end, a separator for dissociating the product from its liquid envelope, installation in which the cooling tube is equipped with at least one roller drive device for the product, characterized in that the roller is mounted horizontally in a box provided, on the one hand, with two connections connected to the cooling tube and respectively defining an inlet and an outlet of the box to allow the passage of the product in a straight line through this box and, on the other hand, a cover whose inner face shaped as a semi-circular channel defines with the roller a passage for the product and the liquid envelope which surrounds it, and in that, relative to the s ens of movement of said product, the inlet connector has a cylindrical passage followed by a convergent and the outlet connector has a cylindrical passage preceded by a convergent.

Les revendications dépendantes concernent des variantes possibles de l'objet de la revendication 1.The dependent claims relate to possible variants of the subject-matter of claim 1.

Comme on le comprend, si la vitesse de défilement du produit varie au cours de son passage dans le tube de refroidissement, la loi de refroidissement suivie n'est pas partout la même et il en résulte une hétérogénéité de la structure et, par conséquent, des caractéristiques mécaniques le long du produit. Tant que le produit est en prise dans les cages finisseuses, sa vitesse reste constante, voisine de celle de rotation des cylindres. Une fois sorti de la dernière cage, sa vitesse décroît, mais tant que son extrémité repose sur un nombre suffisant de rouleaux, son entraînement est assuré et la diminution de vitesse est peu génante. Par contre, lorsque seule une portion de faible longueur subsiste en amont de l'entrée du tube de refroidissement, le freinage dû au frottement de la lame d'eau, même lorsque le produit et l'eau circulent à co-courant, devient sensible. Il est donc apparu nécessaire au demandeur de disposer, dans l'installation de refroidissement, des dispositifs permettant de conserver au produit une vitesse uniforme.As can be understood, if the speed of movement of the product varies during its passage through the cooling tube, the law of cooling followed is not everywhere the same and this results in heterogeneity of the structure and, consequently, mechanical characteristics along the product. As long as the product is engaged in the finishing cages, its speed remains constant, close to that of rotation of the cylinders. Once out of the last cage, its speed decreases, but as long as its end rests on a sufficient number of rollers, its drive is assured and the speed reduction is not very annoying. On the other hand, when only a short portion remains upstream of the inlet of the cooling tube, the braking due to the friction of the water layer, even when the product and the water circulate co-current, becomes sensitive. . It therefore appeared necessary to the applicant to have, in the cooling installation, devices allowing the product to be kept at a uniform speed.

Un autre phénomène cause des hétérogénéités locales de refroidissement et donc de structure: la venue en contact du produit avec les parois du tube de refroidissement. En effet, les produits, en particulier ceux d'assez fort diamètre, présentent une flèche suffisamment importante pour venir reposer sur le fond du tube. Pour y remédier, le demandeur a déjà proposé de disposer, à l'intérieur du tube de refroidissement, des dispositifs de centrage constitués essentiellement d'un élément tubulaire comportant un passage central de diamètre interne inférieur au diamètre interne du tube et présentant des canaux longitudinaux répartis autour du passage central. Afin d'éviter à la fois les hétérogénéités le long du produit et les hétérogénéités locales, le demandeur a donc été amené à disposer les dispositifs d'entraînement, non pas n'importe où dans l'installation, mais en remplacement de tout ou partie des dispositifs de centrage, leur conférant ainsi une double function.Another phenomenon causes local heterogeneities of cooling and therefore of structure: the coming into contact of the product with the walls of the cooling tube. Indeed, the products, in particular those of fairly large diameter, have a sufficiently large deflection to come to rest on the bottom of the tube. To remedy this, the applicant has already proposed to have, inside the cooling tube, centering devices essentially consisting of a tubular element having a central passage with an internal diameter less than the internal diameter of the tube and having longitudinal channels distributed around the central passage. In order to avoid both heterogeneities along the product and local heterogeneities, the applicant was therefore led to arrange the drive devices, not anywhere in the installation, but in replacement of all or part centering devices, thus giving them a double function.

L'invention sera de toutes façons bien comprise au vu de l'exemple qui va suivre, donné à titre purement illustratif, en référence aux planches de dessin annexées sur lesquelles:

  • - la figure 1 est une coupe transversale du dispositif selon l'invention,
  • - la figure 2 représente le même dispositif en coupe longitudinale.
The invention will in any case be clearly understood in the light of the example which follows, given purely by way of illustration, with reference to the attached drawing boards on which:
  • FIG. 1 is a cross section of the device according to the invention,
  • - Figure 2 shows the same device in longitudinal section.

La description sera faite en référence aux deux figures simultanément et les éléments identiques seront désignés par le même repère.The description will be made with reference to the two figures simultaneously and the identical elements will be designated by the same reference.

Le dispositif d'entraînement caractéristique de l'invention est essentiellement constitué par un galet 1 disposé à l'intérieur d'un caisson étanche 2 et mis en rotation par un moteur 3. Le caisson est constitué d'un fond 4, de deux parois latérales 5 et 6 et d'un couvercle 7. Le galet 1 est monté sur un axe 8 porté par deux paliers de roulement 9 et 10 disposés respectivement dans les parois latérales 5 et 6.The drive device characteristic of the invention essentially consists of a roller 1 placed inside a sealed box 2 and rotated by a motor 3. The box consists of a bottom 4, two walls side 5 and 6 and a cover 7. The roller 1 is mounted on an axis 8 carried by two rolling bearings 9 and 10 disposed respectively in the side walls 5 and 6.

L'etrémité de l'axe portée par le roulement 10 traverse la paroi 6 et est reliée au moteur 3 qui assure la rotation de l'ensemble, à la vitesse choisie, dans le sens de défilement du produit. Ce dernier n'a pas été représenté, pour ne pas surcharger les figures, mais son sens de défilement est indiqué par une flèche sur la figure 2. L'autre extrémité de l'axe 8 est protégée par un capot 11 fixé sur la paroi 5 par des vis telles que 12. Deux pièces en matériau élastique 13 et 14 assurent respectivement une liaison souple entre l'axe 8 et les parois 5 et 6.The end of the axis carried by the bearing 10 crosses the wall 6 and is connected to the motor 3 which ensures the rotation of the assembly, at the chosen speed, in the direction of travel of the product. The latter has not been shown, so as not to overload the figures, but its direction of travel is indicated by an arrow in FIG. 2. The other end of the axis 8 is protected by a cover 11 fixed to the wall 5 by screws such as 12. Two pieces of elastic material 13 and 14 respectively provide a flexible connection between the axis 8 and the walls 5 and 6.

Le couvercle 7 présente un évidement semi-cylindrique 15 destiné à servir de passage au produit. Ce couvercle 7 est raccordé au tube de refroidissement, comme on peut le voir sur la figure 2, par deux embouts 16 et 17 tubulaires. Dans le sens de défilement du produit, l'embout 16 présente un passage d'abord cylindrique prolongé par une partie convergente et l'embout 17 présente un passage cylindrique précédé par une partie convergente afin de faciliter l'introduction et la sortie du produit dans le dispositif. Le couvercle 7 est fixé sur les parois latérales par des vis telles que 18.The cover 7 has a semi-cylindrical recess 15 intended to serve as a passage for the product. This cover 7 is connected to the cooling tube, as can be seen in FIG. 2, by two tubular ends 16 and 17. In the direction of travel of the product, the end piece 16 has a first cylindrical passage extended by a converging part and the end piece 17 has a cylindrical passage preceded by a converging part in order to facilitate the introduction and the exit of the product into the device. The cover 7 is fixed to the side walls by screws such as 18.

Une gorge annulaire 19 est ménagée sur la périphérie du galet 1 afin d'assurer un meilleur contact avec le produit. Ce dernier, accompagné de son enveloppe liquide pénètre donc par l'embout 16, arrive en contact avec le galet et ressort par l'embout 17 à vitesse plus élevée. Le passage délimité par l'évidement 15 et la gorge 19 est de hauteur inférieure au diamètre intérieur du tube de refroidissement pour permettre au dispositif d'assurer sa fonction de centrage. Une partie de l'enveloppe liquide passe donc par l'espace délimité par le galet 1 et le fond 4 du caisson. Des joints toriques sont prévus partout où leur présence est nécessaire pour asssurer l'étanchéité de l'ensemble.An annular groove 19 is formed on the periphery of the roller 1 in order to ensure better contact with the product. The latter, accompanied by its liquid envelope therefore penetrates through the nozzle 16, comes into contact with the roller and exits through the nozzle 17 at higher speed. The passage delimited by the recess 15 and the groove 19 is less than the inside diameter of the cooling tube to allow the device to perform its centering function. Part of the liquid envelope therefore passes through the space delimited by the roller 1 and the bottom 4 of the box. O-rings are provided wherever their presence is necessary to ensure the tightness of the assembly.

Il va de soi que la présente invention n'est pas limitée, dans sa portée, à l'exemple décrit. Le galet peut notamment être de section elliptique afin de conférer au produit un mouvement latéral pour destabiliser les films de vapeur pouvant éventuellement se former. De même, on peut prévoir de disposer aux extrémités de la gorge des pales afin d'éviter que de l'eau ne stagne au fond du caisson.It goes without saying that the present invention is not limited, in its scope, to the example described. The roller can in particular be of elliptical section in order to give the product a lateral movement to destabilize the vapor films which may possibly form. Likewise, provision can be made to have blades at the ends of the groove in order to prevent water from stagnating at the bottom of the box.

Le nombre et la position des dispositifs selon l'invention n'est pas limité: ils peuvent remplacer un seul dispositif de centrage, cela peut suffire dans certains cas à conserver la vitesse constante, une partie ou la totalité de ces dispositifs. Les galets peuvent être placés sous le produit comme dans l'exemple décrit, en quinconce, l'un en-dessous suivi d'un autre au-dessus, afin d'obtenir un effet de dressage. Deux galets superposés peuvent être disposés dans le même caisson, le produit passant entre les deux. Enfin, une partie ou la totalité des galets ne sont pas nécessairement entraînée par un moteur, leur rôle passif étant alors identique à celui joué par les rouleaux dont sont munies les installations de refroidissement classiques.The number and position of the devices according to the invention is not limited: they can replace a single centering device, this may be sufficient in certain cases to keep the speed constant, some or all of these devices. The rollers can be placed under the product as in the example described, in staggered rows, one below followed by another above, in order to obtain a straightening effect. Two superimposed rollers can be placed in the same box, the product passing between the two. Finally, some or all of the rollers are not necessarily driven by a motor, their passive role then being identical to that played by the rollers with which conventional cooling installations are provided.

Claims (5)

1. A system, for cooling lengthwise products in motion encompassed by a cooling liquid, consisting of a cooling tube fitted at one end with a coolant-supply nozzle and, at the orther end, with a separator to dissociate the aforesaid product from its liquid envelope, a system in which the cooling tube is fitted with at least one roller-type member that drives the product, characterized in that the roller (1) is mounted horizontally in the enclosure (2), fitted on the one hand, with two connections (16, 17) linked to the cooling tube and respectively denoting the inlet and outlet of the enclosure for letting the product pass straight through this enclosure (2) and, on the other hand, a cover (7), the inner side of which is shaped as a semi-circular channel (15) which, in conjunction with the roller (1), delimits a passage for the product and the liquid envelope encompassing it, and also that, with respect to the direction of motion of the said product, the inlet connection (16) provides a cylindrical passage followed by a convergent nozzle, and the outlet connection (17) provides a cylindrical passage preceded by a convergent.
2. A system, according to claim 1, characterized in that the driving roller (1) is a grooved roller (19) whereby the product in motion can be centred sidewise.
3. A system, according to claims 1 or 2, characterized in that the roller (1) is connected to a driving motor (3).
4. A system, according to claim 1, characterized in that the distance from the cover (7) to the roller (1) is less than the inner diameter of the cooling tube so that the product in motion can be centred vertically.
5. A system, according to any claim above, characterized in that several driving members of the type considered are staggered along the cooling tube.
EP19800400740 1979-06-07 1980-05-27 Apparatus for cooling elongate hot rolled products Expired EP0021884B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7914812A FR2458499A1 (en) 1979-06-07 1979-06-07 DEVICE FOR DRIVING LONG PRODUCTS THROUGHOUT
FR7914812 1979-06-07

Publications (2)

Publication Number Publication Date
EP0021884A1 EP0021884A1 (en) 1981-01-07
EP0021884B1 true EP0021884B1 (en) 1984-03-14

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DE (1) DE3066943D1 (en)
FR (1) FR2458499A1 (en)
MY (1) MY8600749A (en)

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LU84922A1 (en) * 1983-07-18 1985-04-17 Centre Rech Metallurgique PROCESS AND DEVICES FOR MANUFACTURING STEEL CONCRETE REINFORCEMENTS ON HIGH SPEED WIRE TRAIN
CN103464524A (en) * 2013-09-15 2013-12-25 无锡平盛科技有限公司 Main shaft guide wheel assembly on trunk type take-up machine
JP7006846B2 (en) * 2019-06-28 2022-01-24 Ｊｆｅスチール株式会社 Steel cooling equipment
DE102020205250B4 (en) * 2020-04-24 2021-11-11 Kocks Technik Gmbh & Co Kg Guide device for long products

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3245671A (en) * 1963-04-08 1966-04-12 Takaishi Yoshio Cooling method and apparatus for hot rolled steel rod
DE1950919A1 (en) * 1968-12-26 1970-07-09 Morgan Const Company Device for driving an elongated material moving in the axial direction
GB1514460A (en) * 1974-09-10 1978-06-14 British Steel Corp Cooling system for metal articles
NL154129C (en) * 1974-10-28 1900-01-01
BE846615R (en) * 1976-09-24 1977-01-17 PLANT FOR PROCESSING LAMINATED STEEL PRODUCTS

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FR2458499A1 (en) 1981-01-02
DE3066943D1 (en) 1984-04-19
FR2458499B1 (en) 1984-10-12
MY8600749A (en) 1986-12-31
EP0021884A1 (en) 1981-01-07

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