EP1464418A1 - Procédé pour la réalisation d'une enveloppe métallique cylindrique, et installation pour la mise en oeuvre de ce procédé - Google Patents
Procédé pour la réalisation d'une enveloppe métallique cylindrique, et installation pour la mise en oeuvre de ce procédé Download PDFInfo
- Publication number
- EP1464418A1 EP1464418A1 EP03100885A EP03100885A EP1464418A1 EP 1464418 A1 EP1464418 A1 EP 1464418A1 EP 03100885 A EP03100885 A EP 03100885A EP 03100885 A EP03100885 A EP 03100885A EP 1464418 A1 EP1464418 A1 EP 1464418A1
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- EP
- European Patent Office
- Prior art keywords
- lifting
- unwinding
- produced
- roller
- tables
- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H7/00—Construction or assembling of bulk storage containers employing civil engineering techniques in situ or off the site
- E04H7/02—Containers for fluids or gases; Supports therefor
- E04H7/04—Containers for fluids or gases; Supports therefor mainly of metal
- E04H7/06—Containers for fluids or gases; Supports therefor mainly of metal with vertical axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/12—Making tubes or metal hoses with helically arranged seams
- B21C37/122—Making tubes or metal hoses with helically arranged seams with welded or soldered seams
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/18—Making hollow objects characterised by the use of the objects vessels, e.g. tubs, vats, tanks, sinks, or the like
Definitions
- the invention relates to the production of cylindrical metal casing of large dimensions. It relates more specifically to the manufacture of tanks of such dimensions, used in the food, agrochemical, chemical, petrochemical as well as in the environmental field (effluent treatment).
- the object of the present invention is to propose a solution to this problem, so that it becomes possible to make tanks, and generally metal enclosures cylindrical cylinders of very high capacity, for example having a height greater than fifteen meters, and a diameter greater than twenty meters.
- the invention basically consists of no longer using a merry-go-round rotary, as in the case of the document of the aforementioned prior art, but to use a plurality of unwinding tables and lifting masts, allowing the forces to be distributed, and hence, to handle elements of significantly greater mass.
- the lifting mats are assembled at the tables of unfolding. These two organs are therefore in equal number.
- the circumferential rings of lifting are not secured to each of the ferrules, but at periodic intervals, function in particular the possible lifting height conferred on said lifting masts.
- the mobile structure is movable between an operational position, in which it receives the metal strip and a retracted position under the action of a jack electric or pneumatic or any other equivalent device.
- the roller with a horizontal axis of rotation receiving the lower edge of the ferrule in progress is made of a material with structural hardening.
- the unwinding tables each extend by a lifting mast.
- the assembly consisting of an unwinding table and a lifting mast is in one piece.
- FIG. 1 is a schematic plan view of the bottom of the tank to be produced in accordance with the invention.
- FIG. 2 is a schematic representation in cross section of FIG. 1.
- Figure 3 is a schematic plan view of the installation according to the invention.
- Figure 4 is a schematic representation of an unwinding table provided with its lifting mast.
- Figure 5 is a schematic detail view of the actual unwinding table.
- Figure 6 is a schematic representation of the welding machine according to the invention.
- Figure 7 is a schematic representation of the machine for unwinding the metal strip, according to the invention.
- Figure 8 illustrates in schematic perspective the unwinding operation according to the invention.
- FIG. 1 is a schematic plan view of the bottom of the tank to be produced in accordance with the invention.
- FIG. 2 is a schematic representation in cross section of FIG. 1.
- Figure 3 is a schematic plan view of the installation according to the invention.
- Figure 4 is a schematic representation of an unwinding table provided with its lifting mast.
- Figure 5 is a schematic detail view
- FIG. 9 illustrates the operation of placing the dome of the tank on the first ferrule produced, in accordance with the invention.
- FIG. 10 illustrates the unwinding of the second ferrule, in accordance with the invention.
- FIG. 11 illustrates the unwinding of the fourth ferrule, in accordance with the invention.
- FIG. 12 illustrates in summary the different steps for producing a tank made up of ten ferrules.
- the first step in the process for producing the tank according to the invention consists in realize the bottom (1) thereof.
- a concrete slab (2) is produced, within which are positioned a number of rods (4) in the shape of a carp tail, intended to be embedded in concrete, the upper end of which is welded to a metal structure serving as an anchor to the metal plates constituting the bottom itself. It is advantageously inclined, in order to allow the emptying operations of the final tank.
- the bottom (1) is inclined by one of its peripheral edges, in the direction of the diametrically opposite edge.
- the highest or lowest point of which is located in its center.
- reservations (3) are provided on the periphery of this circular bottom (1) in concrete, evenly distributed. These reservations (3) are intended to serve as a point anchoring and fixing to as many unwinding tables and lifting masts, as well as that will appear clearly in the description which follows.
- FIG. 3 shows a general view of the installation for producing the tank, according to the invention.
- the unwinding tables associated with their lifting mast (8) have been positioned at the aforementioned reservations (3).
- the device for unwinding (6) the metal strips has also been symbolized, in the vicinity of the lowest unwinding table in said figure.
- the welding machine (7) the ferrules between them has also been shown. This one is mounted in a fixed position, so that to ensure the welding of two adjacent ferrules between them, it is important that said ferrules are driven in a circular translational movement at said welding machine.
- the unwinding tables (8) according to the invention will thus be described, in relation to the Figures 4 and 5. As already indicated, these tables are fixed to the periphery of the bottom of the tank on a concrete slab within reservations (3) provided for this purpose.
- the base (9) receives a structure (11) movable in horizontal translation, between a position operational, in which the table receives a ferrule in progress or already completed, and then protruding towards the center of the tank, and a retracted position in which said movable structure is somehow retracted into a housing provided for this purpose within the table, thus eliminating the aforementioned projection.
- Said movable structure comprises a first roller (15), acting as a drive roller, and whose axis of revolution (21) is vertical.
- This roller (15) is motorized, by means of a motor assembly secured to said structure mobile, and comprising an electric motor (16), the motor axis of which cooperates with a return angle (17), actuating a vertical axis (18).
- the upper end of this vertical axis is provided with a toothed pinion, cooperating with a chain (19), cooperating in turn with a toothed pinion positioned in the vicinity of the upper end of the axis (21) of said roller motor (15).
- the mobile structure comprises a second roller (22), called a pressure roller, with an axis of revolution (23) parallel to that of the first drive roller (15).
- This pressure roller (22) is freely mounted in rotation on a base (24), itself movable in horizontal translation under the action of a means of translation integral with the mobile structure, so as to allow to exert pressure by the generator of said roller, against the drive roller.
- this means of translation consists of an electric or pneumatic cylinder, the cylinder of which (25) is integral with the movable structure, and the end of the piston (26) of which is secured to said base (24).
- the mobile structure finally comprises a roller (27) with horizontal axis of rotation, positioned between the two motor rollers (15) and presser (22), and substantially flush with the lower edge of the generators of said rollers.
- This roller (27), mounted for rotation, is intended to receive the lower edge of the ferrule (5) in progress.
- This planar element (27) is typically made of a material with structural hardening, in order to avoid the punching likely to be generated by the metal strip in contact with it.
- the jack (13, 14) ensuring the displacement in horizontal translation of the mobile structure (11) is mounted and chosen so that at maximum extension, the generator of the roller motor (15) corresponds substantially to the desired diameter (28) of the shell to be produced, and therefore as a corollary of the final tank.
- this unwinding table (8) is extended at its upper part by a mat lifting, secured to the base (9) of said table.
- this mat rises one height close to 4.25 meters. It is fitted with a gripping hook or shoe (52), capable of being moved in height by means of an electric or pneumatic jack, or even by a other device performing the same function (not shown).
- FIG. 6 Schematically illustrated in Figure 6 the welding machine (7) implemented within installation of the invention.
- This is mounted fixed for the duration of the operations of mounting the tank. It basically includes a base (30), the level of which is adjusted by means of jacks (37, 38), bearing respectively on the bottom (1) and on the raft (2). From this base (30) extend two vertical columns (31, 32), on which are mounted the actual welding heads (33, 34) of an appropriate type depending on the nature of the metal welding. These welding heads are adjustable in height and in relation to each other the other by means of suitable translating members (35, 36, 39).
- the unwinding machine (6) of the invention also includes a base or frame (46), leveled according to the level of the tables unwinding by means of a plurality of jacks (45). It also includes a tray freely rotating (41), intended to receive a coil (40) of strip metal (or “Coil”). In this case, this metal is made of stainless steel. It could also be made of aluminum.
- the metal strip (5) from the coil (40) is then taken up by a pair of motor-presser rollers (42, 43), in addition to another roller (not shown) motorized by an electric motor (44), in order to ensure the unwinding of said strip from of the coil at a chosen and determined speed.
- FIG. 8 thus illustrates the beginning of the unwinding of the metal strip (5) within installation.
- this tank is provided with a dome (50). We proceed to the assembly of it, sector by sector relative to a central chimney (51), ensuring the lifting and handling of said sectors by means of a crane (not shown).
- the dome When the dome is made, it is suspended by the lifting masts (8), whose hooks or lifting shoes (52) are hooked by means of a link or equivalent (54) to points of lifting (53) provided for this purpose.
- the dome is thus raised from a height slightly greater than the width of the metal strip (5).
- This can then be carried out from the unwind (6) at the unwinding tables, where it is taken up, the pressure roller (22) each of said tables tightening the strip against the drive roller (22).
- the speed of rotation of the motor rollers is synchronized with the speed of unwinding of the strip (5) by the unrolling machine (6) (figure 9 - left part).
- the lifting points are then put back in place at the dome, and the assembly then monobloc dome + ferrule is mounted at a sufficient height to allow the unwinding a second metal strip, to form the second ferrule (61) ( Figure 10 - part left), like the first ferrule (60).
- the dome + first ferrule assembly (60) is lowered, so to land the lower edge of said assembly on the upper edge of said second ferrule (62). We remove the lifting points of said first set, and we proceed, as for the first assembly to weld it with the second ferrule by rotation at the welding machine.
- the periphery of the second ferrule substantially at mid-height thereof a circumferential ring or belt (55).
- This ring firstly has the function of reinforcing the ferrule in question. he is also intended to provide stability against buckling of the final tank. It also guarantees the roundness of the latter during its various construction phases. Finally, it is also intended to serve as a gripping member during successive lifting phases. It thus allows to distribute the load forces, and moreover to avoid the phenomena of punching during the lifting.
- This ring typically consists of a metal angle, open in the direction of the bottom.
- the means for lifting the masts are then repositioned on this ring (55), and the lifting of the dome + ferrule (60) + ferrule (61) assembly, and the operations are thus repeated operations of unwinding the metal strip and welding, with the installation of a circumferential ring or belt every two ferrules (see figure 11).
- bodies ensuring the dual function of lifting and rotation ferrules reduces the power of the tools usually used for the realization such speakers. At the same time, they make it possible to get rid of cranes and other scaffolding, usually used for the construction of such enclosures. They also make it possible to avoid the work of staff at height, a source of time loss off accidents.
- the invention makes it possible to optimize the quality of finish of the welds, and the maintenance of the appearance of the surfaces of the metal strips used, thereby promoting compliance of the final tank with the sanitary and food requirements, when these are required.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
Description
- à dérouler en continu et à vitesse régulière une bande métallique à partir d'une bobine ;
- à déposer simultanément et en continu ladite bande ainsi déroulée sur un manège comportant un plateau tournant, dont la vitesse de rotation correspond à la vitesse d'avancement de la bande, et dont le rayon correspond au rayon de la virole à réaliser ;
- à stopper le déroulement de la bande et à procéder à sa découpe une fois atteinte la longueur correspondant au développement de la virole ;
- à amener l'ouvrage en cours au dessus de cette virole, et à effectuer l'accostage et la soudure horizontale du bord supérieur de cette virole avec le bord inférieur dudit ouvrage, le manège étant en rotation à vitesse contrôlée ;
- à réaliser la soudure verticale de fermeture de ladite virole par arrêt du manège.
- on déroule en continu une bande métallique à partir d'une bobine, que l'on découpe lorsque la longueur souhaitée, correspondant au développement souhaité de la virole est atteinte ;
- on amène la partie de l'ouvrage déjà réalisée au dessus de cette virole, et on effectue l'accostage et la soudure horizontale en continu du bord supérieur de cette virole avec le bord inférieur dudit ouvrage, au moyen d'une machine à souder, puis on effectue la soudure verticale de fermeture de ladite virole à l'arrêt ;
- à recevoir chaque bande métallique en cours de déroulage sur une pluralité de tables de déroulement motorisées, sensiblement régulièrement réparties à la périphérie de l'enveloppe métallique à réaliser, et destinées à assurer selon un plan déterminé la progression de ladite bande selon un profil cylindrique ;
- à solidariser un anneau circonférentiel, également dénommé ceinture, à la périphérie d'une partie au moins des viroles ainsi réalisées ;
- à réaliser le levage de la partie de l'ouvrage ainsi réalisée au moyen de mats de levage, également sensiblement régulièrement répartis à la périphérie de l'enveloppe métallique à réaliser, lesdits mats étant simultanément accrochés au niveau d'un même anneau circonférentiel ;
- à recommencer ces opérations jusqu'à atteindre la hauteur souhaitée de l'enveloppe à réaliser ;
- et, lorsque cette hauteur est atteinte, à soulever l'ensemble au moyen desdits mats de levage, afin de permettre l'évacuation desdites tables de roulement et de la machine à souder, et le dépôt dudit ensemble sur le fond de l'enveloppe, préalablement constitué et mis en place.
- un dispositif dérouleur de la bande métallique, stockée sous forme de bobine ;
- un poste de soudage fixe, susceptible de réaliser tant une soudure horizontale qu'une soudure verticale ;
- une pluralité de tables de déroulement, sensiblement régulièrement réparties à la périphérie de l'enveloppe métallique à réaliser, et destinées à assurer selon un plan déterminé la progression de la bande métallique issue du dispositif dérouleur selon un profil cylindrique ;
- une pluralité de mats de levage, sensiblement régulièrement réparties à la périphérie de l'enveloppe métallique à réaliser, et destinés à assurer le levage de la première virole réalisée ou de la partie d'ouvrage déjà réalisée, ainsi que leur redescente au contact de la virole en cours de réalisation ou du fond de ladite enceinte.
- un socle, venant se fixer au sol, à la périphérie de la zone destinée à recevoir l'enveloppe cylindrique à réaliser ;
- une structure mobile en translation horizontale sur le socle, et munie :
- d'un premier galet, dit galet moteur, motorisé et à axe de révolution vertical,
- d'un second galet, dit galet presseur, d'axe de révolution parallèle à celui du premier
- galet moteur, et monté libre en rotation sur une base elle-même mobile en translation
- horizontale sous l'action d'un moyen de translation solidaire de la structure mobile, de
- telle sorte à permettre d'exercer une pression par la génératrice dudit galet, contre le
- galet moteur, et ainsi à assurer la progression de la bande métallique ;
- d'un rouleau à axe de rotation horizontal, positionné entre les deux galets moteur et
- presseur et affleurant sensiblement au niveau du bord inférieur des génératrices desdits
- galets, et destiné à recevoir le bord inférieur de la virole en cours de réalisation.
La figure 1 est une représentation schématique en plan du fond de la cuve à réaliser conformément à l'invention.
La figure 2 est une représentation schématique en section transversale de la figure 1.
La figure 3 est une représentation schématique en plan de l'installation conforme à l'invention.
La figure 4 est une représentation schématique d'une table de déroulement munie de son mat de levage.
La figure 5 est une vue schématique en détail de la table de déroulement proprement dite.
La figure 6 est une représentation schématique de la machine à soudure conforme à l'invention.
La figure 7 est une représentation schématique de la machine à dérouler la bande métallique, conforme à l'invention.
La figure 8 illustre en perspective schématique l'opération de déroulage conformément à l'invention.
La figure 9 illustre l'opération de mise en place du dôme de la cuve sur la première virole réalisée, conformément à l'invention.
La figure 10 illustre le déroulage de la deuxième virole, conformément à l'invention.
La figure 11 illustre le déroulage de la quatrième virole, conformément à l'invention.
La figure 12 illustre en résumé les différentes étapes pour la réalisation d'une cuve constituée de dix viroles.
Claims (8)
- Procédé pour la réalisation d'une enveloppe ou enceinte métallique cylindrique de grandes dimensions par soudage de viroles successives, dans lequel :on déroule en continu une bande métallique (5) à partir d'une bobine (40), que l'on découpe lorsque la longueur souhaitée, correspondant au développement souhaité de la virole est atteinte ;on amène la partie de l'ouvrage déjà réalisée au dessus de cette virole, et on effectue l'accostage et la soudure horizontale en continu du bord supérieur de cette virole avec le bord inférieur dudit ouvrage au moyen d'une machine à souder, puis on effectue la soudure verticale de fermeture de ladite virole à l'arrêt ;à recevoir chaque bande métallique (5) en cours de déroulage sur une pluralité de tables de déroulement motorisées (8), sensiblement régulièrement réparties à la périphérie de l'enveloppe métallique à réaliser, et destinées à assurer selon un plan déterminé la progression de ladite bande selon un profil cylindrique ;à solidariser un anneau circonférentiel ou ceinture (55) à la périphérie d'une partie au moins des viroles ainsi réalisées ;à réaliser le levage de la partie de l'ouvrage ainsi réalisée au moyen de mats de levage, également sensiblement régulièrement répartis à la périphérie de l'enveloppe métallique à réaliser, lesdits mats étant simultanément accrochés au niveau d'un même anneau circonférentiel ou ceinture (55);à recommencer ces opérations jusqu'à atteindre la hauteur souhaitée de l'enveloppe à réaliser ;et, lorsque cette hauteur est atteinte, à soulever l'ensemble au moyen desdits mats de levage, afin de permettre l'évacuation desdites tables de roulement et de la machine à souder, et le dépôt dudit ensemble sur le fond de l'enveloppe, préalablement constitué et mis en place.
- Procédé pour la réalisation d'une enveloppe ou enceinte métallique cylindrique selon la revendication 1, caractérisé en ce que les mats de levage sont assemblés au niveau des tables de déroulement.
- Procédé pour la réalisation d'une enveloppe ou enceinte métallique cylindrique selon l'une des revendications 1 et 2, caractérisé en ce que les anneaux circonférentiels ou ceinture (55) de levage ne sont pas solidarisés sur chacune des viroles, mais à intervalles périodiques, fonction notamment de la hauteur possible de levage conférée auxdits mats de levage.
- Installation pour la réalisation d'une enveloppe ou enceinte métallique cylindrique de grandes dimensions, constituées de l'assemblage successif de viroles, comprenant :un dispositif dérouleur d'une bande métallique (5) stockée sous forme de bobine, destinée à constituer lesdites viroles ;un poste de soudage fixe, susceptible de réaliser tant une soudure horizontale qu'une soudure verticale de ladite bande au niveau des viroles déjà réalisées ;une pluralité de tables de déroulement (8), sensiblement régulièrement réparties à la périphérie de l'enveloppe métallique à réaliser, et destinées à assurer selon un plan déterminé la progression de la bande métallique issue du dispositif dérouleur selon un profil cylindrique ;une pluralité de mats de levage, sensiblement régulièrement réparties à la périphérie de l'enveloppe métallique à réaliser, et destinés à assurer le levage de la première virole réalisée ou de la partie d'ouvrage déjà réalisée, ainsi que leur redescente au contact de la virole en cours de réalisation ou du fond de ladite enceinte.
- Installation pour la réalisation d'une enveloppe ou enceinte métallique cylindrique de grandes dimensions selon la revendication 4, caractérisée en ce que les tables de déroulement (8) comprennent :un socle (9), venant se fixer au sol, à la périphérie de la zone destinée à recevoir l'enveloppe cylindrique à réaliser ;une structure (11) mobile en translation horizontale sur le socle, et munie :d'un second galet (22), dit galet presseur, d'axe de révolution parallèle à celui du premier galet moteur, et monté libre en rotation sur une base (24) elle-mêmemobile en translation horizontale sous l'action d'un moyen de translation (25)solidaire de la structure mobile, de telle sorte à permettre d'exercer une pressionpar la génératrice dudit galet, contre le galet moteur (15), et ainsi à assurer laprogression de la bande métallique ;d'un rouleau à axe de rotation horizontal (27), positionné entre les deux galets moteur (15) et presseur (22) et affleurant sensiblement au niveau du bordinférieur des génératrices desdits galets, et destiné à recevoir le bord inférieur dela virole en cours de réalisation.
- Installation pour la réalisation d'une enveloppe ou enceinte métallique cylindrique de grandes dimensions selon la revendication 5, caractérisée en ce que la structure mobile (11) est mobile entre une position opérationnelle, dans laquelle elle reçoit la bande métallique (5) et une position escamotée sous l'action d'un vérin électrique ou pneumatique ou tout autre organe équivalent (13).
- Installation pour la réalisation d'une enveloppe ou enceinte métallique cylindrique de grandes dimensions selon l'une des revendications 5 et 6, caractérisée en ce que le rouleau à axe de rotation horizontal (27) recevant le bord inférieur de la virole en cours de réalisation est constitué d'un matériau à durcissement structurel.
- Installation pour la réalisation d'une enveloppe ou enceinte métallique cylindrique de grandes dimensions selon l'une des revendications 4 à 7, caractérisée en ce que les tables de déroulement sont chacune surmontées par les mâts de levage, de sorte que l'ensemble constitué par une table de déroulement et un mât de levage est monobloc.
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Application Number | Priority Date | Filing Date | Title |
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EP03100885A EP1464418A1 (fr) | 2003-04-03 | 2003-04-03 | Procédé pour la réalisation d'une enveloppe métallique cylindrique, et installation pour la mise en oeuvre de ce procédé |
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EP03100885A EP1464418A1 (fr) | 2003-04-03 | 2003-04-03 | Procédé pour la réalisation d'une enveloppe métallique cylindrique, et installation pour la mise en oeuvre de ce procédé |
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EP1464418A1 true EP1464418A1 (fr) | 2004-10-06 |
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EP03100885A Withdrawn EP1464418A1 (fr) | 2003-04-03 | 2003-04-03 | Procédé pour la réalisation d'une enveloppe métallique cylindrique, et installation pour la mise en oeuvre de ce procédé |
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WO2012004440A1 (fr) * | 2010-07-07 | 2012-01-12 | Cantoni Gruas Y Montajes S.R.L. | Procédé de construction de réservoirs et dispositif pour la mise en oeuvre d'une étape d'espacement de viroles dudit procédé |
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