EP2999554B1 - Procédé et dispositif servant à évacuer rapidement des grosses tôles d'un laminoir - Google Patents

Procédé et dispositif servant à évacuer rapidement des grosses tôles d'un laminoir Download PDF

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Publication number
EP2999554B1
EP2999554B1 EP14718347.9A EP14718347A EP2999554B1 EP 2999554 B1 EP2999554 B1 EP 2999554B1 EP 14718347 A EP14718347 A EP 14718347A EP 2999554 B1 EP2999554 B1 EP 2999554B1
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EP
European Patent Office
Prior art keywords
plate
roller table
transport
plates
storage location
Prior art date
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Active
Application number
EP14718347.9A
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German (de)
English (en)
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EP2999554A1 (fr
Inventor
Bernd Linzer
Wolfgang Peitl
Bo Yang
Michael Zahedi
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Primetals Technologies Austria GmbH
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Primetals Technologies Austria GmbH
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Application filed by Primetals Technologies Austria GmbH filed Critical Primetals Technologies Austria GmbH
Priority to EP17173949.3A priority Critical patent/EP3246102B1/fr
Publication of EP2999554A1 publication Critical patent/EP2999554A1/fr
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Classifications

    • 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
    • B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
    • 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
    • B21B1/46—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 metal immediately subsequent to continuous casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/22—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories for rolling metal immediately subsequent to continuous casting, i.e. in-line rolling of steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
    • B21B37/76—Cooling control on the run-out table
    • 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
    • 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
    • B21B39/004—Transverse moving
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • 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
    • B21B1/46—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 metal immediately subsequent to continuous casting
    • B21B1/463—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 metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2275/00—Mill drive parameters
    • B21B2275/02—Speed
    • B21B2275/06—Product speed
    • 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
    • B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
    • B21B39/08—Braking or tensioning arrangements
    • B21B39/088—Bumpers, stopping devices
    • 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
    • B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
    • B21B39/12—Arrangement or installation of roller tables in relation to a roll stand
    • 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
    • B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates

Definitions

  • the present invention relates to a method and an apparatus for the rapid removal of metallic plate from heavy plate from a rolling mill.
  • plate Under a plate of heavy plate, hereafter referred to as plate, in this application, a metallic plate with a thickness between 8 and 250 mm, a width> 900 mm and a length ⁇ 3m to be understood (see Document 570, " Heavy Plate - Production and Application ", Stahl-Informations-Zentrum Düsseldorf, 1st edition 2001 ).
  • the invention relates to a method for conveying metallic plates, preferably of steel, from a rolling mill, preferably a hot rolling mill or a cast-rolling composite plant.
  • the invention relates to an apparatus for the rapid removal of steel plates from a hot rolling mill.
  • a slab strand is produced continuously (ie endlessly) in a continuous casting plant of a cast-rolled composite plant.
  • the endless slab strand itself or a slab cut therefrom is then subjected to high-reduction forming in at least one rolling stand of a rough rolling mill.
  • the pre-rolled slab strand also called pre-strip
  • the pre-rolled slab is heated in a reheating furnace and descaled in a descaling device.
  • a subsequent multi-stand finishing train with at least 5, optional to 7 rolling stands, produced, depending on the number of rolling stands in mesh and the set reduction degrees, steel strips of different thickness. These strips are then cooled in a cooling zone to the required temperature and subsequently wound in at least two coiler alternately to steel coils (reels or English coils ). If necessary, the steel strip is divided into suitable lengths before winding.
  • hot strip can be produced in thicknesses of 0.6 mm to 25 mm and in certain circumstances also up to 30 mm (in the case of narrow widths and materials of low strength).
  • These bundles can later be processed in a separate processing step or in a separate device into plates (so-called thin plates with thicknesses of less than 3 mm or heavy plates with thicknesses of 3 mm to 25 mm, optionally up to 30 mm).
  • a cast-rolled composite plant for the production of boards with thicknesses up to 100 mm and widths up to 4000 mm.
  • the slab produced in the continuous casting process is subjected to liquid core reduction (LCR) in the continuous casting machine; Subsequently, a reduction of the slab takes place in one or more rolling stands of a rolling train. Thereafter, the cooling and the transverse distribution of the strand to the desired plate length.
  • LCR liquid core reduction
  • plate mills Another known production method for plates are plate mills . These mills are designed to roll the stock material or slabs longitudinally and / or transversely to produce sheets of varying thicknesses, widths and lengths.
  • the heavy plate rolling mills have a reheating furnace, one or two rolling mills, a leveler, scissors and annealing, cooling and shelves for the plates.
  • the rolling stands are usually operated reversing.
  • Optionally turntables can also be used to turn the plates for the rolling process, plug-in ovens and edgers for correct width adjustment. This method is mainly used for thicker and / or wider plates. A production of hot strip with small thicknesses is uneconomical or not possible.
  • An object of this invention is to provide a method and apparatus for discharging slabs from a cast-roll compound plant, wherein even relatively short slabs (eg, 3 to 8 meters in length) with high speed and low cycle times safely from the plant can be removed and stored.
  • a further object of this invention is to broaden the product range of a cast-rolling composite plant, in addition to the possibility described above for the production of steel coils on the cast-rolling composite plant also plates of different thickness and length can be produced.
  • the system parameters such as the number of rolling mills in operation and their reduction ratios, can be adjusted so that inline (ie in the cast-rolling composite system itself) plates with thicknesses of at least 8 mm to 25 mm, preferably up to 40 mm , Widths from 900 mm to 2100 mm, and lengths from 3 m to 18 m can be produced.
  • inline ie in the cast-rolling composite system itself
  • Widths from 900 mm to 2100 mm
  • lengths from 3 m to 18 m can be produced.
  • other grades should also be produced.
  • the material produced for example, in continuous, continuous operation, should be able to be divided transversely at a suitable point. Subsequently, the plates are to be discharged from the system and stored with a predetermined length, so that the subsequent material can be freely produced further. It would be desirable if the Ausschleuse- and storage device could be easily and quickly changed to different plate lengths.
  • the first plate is transported on the roller table in the transport direction.
  • the first plate is preferably accelerated in the transport direction, so that a gap between the strand and the first plate is formed.
  • the first plate is placed on the roller table.
  • a second plate is separated from the strand and the second plate is transported on the roller table in the transport direction.
  • the second plate is placed in the transport direction in front of the first plate on the roller table.
  • the roller table As a result, at least two plates in a row (English in-line ) are stored on the roller table. Subsequently, the first and the second plate are discharged from the roller table in a tray, wherein the discharge preferably takes place transversely to the transport direction.
  • the plates can also be conveyed in the vertical direction (eg above or below the roller table).
  • the conveying transverse to the transport direction is also referred to as cross-conveying; the facility for this is called cross conveyor.
  • At least one third plate is transported on the roller table in the transport direction, and the third plate is placed in the transport direction in front of the second plate on the roller table. Subsequently, the first, second and third plates are discharged simultaneously. This either further reduces the minimum plate length for a given cycle time or increases the cycle time for a given plate length.
  • the stacking of several plates on a shelf is particularly simple when the shelf is lowered after laying down the at least one plate by at least the plate thickness.
  • the plates are separated from a strip / strand by transverse cutting before being transported on the roller table in the transport direction.
  • the delivery device with a plurality of cross conveyors for the synchronous discharge of at least one plate each comprises a synchronization device (eg an operative connection between the control devices (see “electric shaft”) of the cross conveyors, or a mechanical connection between the cross conveyors) for synchronizing the cross conveyors.
  • a synchronization device eg an operative connection between the control devices (see “electric shaft") of the cross conveyors, or a mechanical connection between the cross conveyors
  • the means for depositing the plate on the roller table comprises a stop and preferably an actuator (for example a hydraulic, pneumatic or electric actuator) for extending and retracting the stop into the transport path of the plate on the roller table.
  • an actuator for example a hydraulic, pneumatic or electric actuator
  • the means for depositing is designed as a brakable roller table role.
  • roller table comprises several - arranged in the transport direction one behind the other - means for storing.
  • a simple transverse conveyor has a lifting rail, a Hubaktuator for lifting the lifting rail, a carriage for moving the plate transversely to the transport direction, and a Verfahraktuator for moving the Verfahrwagens on the lifting rail.
  • the lifting rail has a plurality of arms, wherein in the starting position between two arms at least one roller table roller is arranged.
  • the starting position is understood to be any position which the transverse conveyor assumes transversely to the transport direction immediately before the plates are conveyed out.
  • Another simple transverse conveyor has a gripper for clamping a plate and a pivoting unit for pivoting the plate about an axis of rotation aligned in the direction of transport.
  • a simple storage is formed by a height-adjustable storage table with an actuator for height adjustment of the delivery table.
  • the plate Since the plate is preferably cut after the last stand of the finishing train and before the plate enters the cooler, and the plate is accelerated after being cut on the roller table to create a gap between the continuously produced hot strip and the plate, the plates become have a variable transport speed depending on the time course of the acceleration.
  • the endlessly produced thin slab strand is after leaving the continuous casting in a roughing 3 by at least one to max. 4 rolling mills with a high degree of reduction pre-rolled.
  • the so-called pre-strip 17 (English transfer bar )
  • the pre-rolled pre-strip has passed through a pendulum shear 4 uncut, it is reheated in an induction furnace 5 and descaled in a subsequent descaling 6.
  • the pre-rolled pre-strip is in a multi-stand finishing line 7 with at least 4, preferably min. 5, rolling stands 7a ... 7d finished rolled to a finished strip 18 or a plate strand, wherein, depending on the desired final thickness of the hot-rolled product, a different number of rolling stands are engaged and / or different degrees of reduction are set.
  • the still endless finished strip 18 is transversely divided by a pair of scissors 8 in plate lengths of 3 m to 18 m.
  • the scissors 8 is located immediately behind the last frame 7d of the finishing train 7.
  • the scissors 8 could also be arranged upstream of the finishing train 7 or even behind the cooling section 10.
  • An arrangement of the pair of scissors 8 immediately after the finishing train 7, however, is advantageous because compared to the arrangement of the scissors 8 before the finishing line 7, the head of the cut hot strip not after each cut in the rolling stands 7a ... 7d of the finishing train 7 must be threaded.
  • the arrangement shown is also advantageous over an arrangement of the scissors 8 after the cooling section 10, since the cutting forces due to the higher temperature of the hot strip after the finishing train 7 are substantially lower.
  • the plate is accelerated on the roller table 9 by a plurality of driven roller conveyor rollers 9a in the transport direction T in order to produce as large a gap as possible between the finished strip 18 and the plate.
  • This gap is determined by the length of the plate, the acceleration of the plate and the acceleration time. In general, the shorter the plates are, the smaller the cycle time for feeding out the plates, and the smaller the gaps between the plates.
  • sequence time t Sequ also called cycle time
  • the plate After cutting, the plate is cooled in a cooling section 10.
  • the variable speed of the plate is taken into account due to the acceleration by dynamic control of the cooling rates.
  • To the position of the head of the plate is tracked within the cooling section ( tracking ) .
  • This ensures, on the one hand, a uniform surface temperature of the plate (including the plate head and foot).
  • the tracking of the plate within the cooling section can, for example, by several inductive detectors below or above the roller table, which register the passage of a plate.
  • the plurality, in the transport direction successively arranged and independently adjustable cooling nozzles, adjusted so that all longitudinal sections of the plate are subjected to the same amount of water.
  • the plates produced are transported to the discharge device 14 by means of the roller table 13 and via the coiler units 11a, 11b.
  • the tape catcher - in the 1b is a so-called.
  • Fang basket 12 shown which can be opened by an electric or hydraulic actuator (the unfolded position is shown in broken lines) - unfolded, raised or twisted.
  • the transport path of the plates on the roller table 13 to the discharge device 14 is released.
  • the belt catcher 12 prevents the finished strip 18 from reaching the outfeed device 14.
  • the plates are transported to the discharge device 14.
  • adjustable side guides which can be adapted hydraulically or electromechanically to the plate width.
  • a leveler can be arranged in this area to compensate for possible bends or bends of the plates.
  • the discharge device 14 is designed so that the strand continuously cast by the continuous casting machine 1 or the finish strip 18 continuously hot rolled in the finishing train 7 can be delivered unhindered, discharged from the hot rolling mill and stacked without disturbing the continuous operation of the casting / rolling composite plant or the production speed is affected.
  • This requirement can not be met in the case of devices according to the prior art, especially for short plates, since the cycle times t Sequ for the discharge device 14 are too short.
  • this requirement is met in the invention by several stored on the roller table successively discharged plates simultaneously; This increases the cycle time.
  • FIG. 2 and 3 show a first embodiment of a discharge device 14 for discharging heavy plates made of steel from the ESP cast-rolling composite plant gem.
  • the Fig. 1a-1c the Fig. 1a-1c ,
  • the discharge device 14 comprises a roller table 13, can be transported in the transport direction T on the plates 21, 22, a means for depositing a first plate 21 in the form of the rear stop 26a and means for placing a second plate 22 on the roller table 13 in the form the front stop 26b, and a cross conveyor 15 for simultaneously conveying two plates 21, 22 transversely to the transport direction T on a tray 24.
  • the roller table 13 is formed of a plurality of driven 9a roller table rollers 31; In addition, non-driven roller conveyor rollers may be present. As in Fig. 3 shown, are two plates 21 and 22 in succession on the roller table 13 before feeding.
  • the endless finished strip 18 after the last frame 7d of the finishing train 7 by the scissors 8 transversely divided (see 1b ). This creates a
  • the first plate 21 is transported on the roller table 9 through the cooling section 10 and accelerated by driven rollers 9a of the roller table 9 in the transport direction T. By accelerating, a gap is formed between the finished strip 18 and the first plate 21, so that collisions are reliably avoided.
  • the first plate 21 After the first plate 21 has passed the reeling devices 11a, 11b and the unfolded catching basket 12, the first plate 21 runs on the roller table 13, also referred to as the connecting roller conveyor, into the discharge device 14.
  • the first plate 21 is further transported in the transport direction T until it is deposited on the roller table 13 by a means for depositing the first plate, which is formed as a rear stop 26a.
  • the stop 26a is pivoted by an actuator, not shown, in the transport path of the first plate 21, whereby the transport path is blocked.
  • the first plate 21 rests on at least two roller table rollers 31.
  • a means for depositing is formed as a light barrier or a camera, which is operatively connected to a plurality of driven roller table rollers 31. Once a plate has reached a predetermined storage position, the roller table rollers 31 are braked so that the plate is placed on the roller table.
  • the scissors 8 has separated a second plate 22 from the endless finishing strip 18. Also, the second plate 22 is transported on the roller table 9 in the transport direction T to the discharge device 14. Before the second plate 22 has reached the storage position on the roller table 13, a front stop 26 b is pivoted into the transport path, whereby the second plate 22 is stored in the transport direction T in front of the first plate 21 on the roller table 13.
  • the second plate 22 rests on at least two roller table rollers 31.
  • the discharge device 14 could also have only one stop (for example the rear stop 26a), wherein the second plate 22 with the first plate 21 or possibly a third plate not shown with a second Plate 22 would collide.
  • the second plate 22 with the first plate 21 or possibly a third plate not shown with a second Plate 22 would collide.
  • the cross conveyor 15 itself is in the Fig. 2 and 3 shown.
  • an arm 30 is arranged, which via a Verfahrwagen 29 (the process takes place in the case illustrated by a linear motor 29a, eg an electric linear drive, a hydraulic or pneumatic cylinder, etc.) in the movement direction V can be moved.
  • the carriage 29 is supported by wheels on a lifting rail 27, which can be lifted and lowered by one or more lifting cylinder 28.
  • the lifting rail 27 is supported relative to the stationary support structure via two pivoting levers, wherein the in Fig. 2 shown right pivot lever can be raised or lowered by the lifting cylinder 28.
  • the lifting of the first and second plates 21, 22 from the roller table rollers 31 of the roller table 13 is in Fig. 4a shown.
  • the Hubaktuator 28 When lifting the Hubaktuator 28 is extended, whereby the lifting rail 27 is raised.
  • the plates 21, 22 are each lifted by one arm 30 (but it could also be more than one arm per plate) of the roller table rollers 31 of the roller table 13.
  • the method is performed by extending one or more actuators 29a (see 4b ).
  • the situation after moving the plates 21, 22 in the direction of travel V is in Fig. 4c shown.
  • the plates 21, 22 are stored by the method on driven roller table rollers 34, which are arranged transversely to the direction of travel V and thus parallel to the transport direction T (these rollers are hereinafter also referred to as transverse rollers) stored.
  • the storage and the rotary drives for the transverse rollers 34 are not shown in the figures for reasons of clarity; however, it will be apparent to those skilled in the art how to perform rotary driven rollers.
  • Fig. 4d It is shown how the plates 21, 22 are deposited on the transverse rollers 34 by retracting the lifting actuator 28, and the traveling carriage moves back against the direction of travel (shown as minus V) to the starting position. After depositing the plates 21,22 are transported by the driven transverse rollers 34 in the direction of travel V on to the tray 24.
  • the cross conveyor 15 comprises a gripper 25 arranged through two left and right of the plates 21, 22 for clamping the plates and a pivoting unit 32 for pivoting the plates about an axis of rotation D, which is aligned parallel to the transport direction T.
  • the pivoting unit 32 is pivoted by approximately 180 °, whereby the plates are brought from the left to the position shown in the right. Subsequently, the plates 21,22 are released from the gripper 25 and stored on the storage table 33. After placing the plates, the pivot unit 32 is pivoted back into the starting position, so that again several plates can be discharged.
  • the Fig. 6 with the sub-figures a to f shows schematically a representation of a discharge device 14 with two successively arranged transverse conveyors 15, 15 'in the discharge of plates with different lengths.
  • sequence times t Sequ reference is made to Table 1 and to the underlying parameters.
  • the Fig. 6a shows the discharge of a first plate 21 with 18 m length.
  • the plate is deposited on the roller table 13 by a first stop 26a.
  • t Sequ 21.6 s.
  • a first plate 21 and a second plate 22, each with 9 m length are discharged simultaneously.
  • t Sequ 10.8 s.
  • the position of the first plate 21 is determined by the stop 26a, the position of the second plate 22 defined by the stop 26b.
  • Fig. 6e shows the simultaneous discharge of two plates 21, 22, each with a length of 6 m.
  • the Fig. 7 shows a non-inventive cooling device 10 with two cooling zones, wherein only the first cooling zone with seven cooling nozzles 42 has been shown in detail.
  • a plate 21 is separated after the last frame of the finishing train, not shown here.
  • the plate 21 is accelerated by the driven roller table rollers 9a, wherein the speed of the plate 21 is determined by two metal detectors 40 spaced apart in the transporting direction T.
  • the plate 21 enters the cooling section 10, where it is cooled in two cooling zones.
  • the cooling nozzles 42 in the illustrated first cooling zone will be supplied by a coolant pressure supply P with coolant (only water or water with air).
  • the coolant flow through the valve 41 is set such that the plate is uniformly cooled, regardless of their speed when passing through the cooling zone 10.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Specific Conveyance Elements (AREA)
  • Control Of Conveyors (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Claims (14)

  1. Procédé pour l'évacuation de plaques métalliques (21, 22), de préférence en acier, d'un laminoir, comprenant les étapes de procédé consistant à :
    - transporter une première plaque (21) sur un train de rouleaux (9, 13) dans la direction de transport (T), la première plaque (21) étant de préférence accélérée dans la direction de transport (T) ;
    - déposer la première plaque (21) sur le train de rouleaux (9, 13) ;
    caractérisé par les étapes de procédé supplémentaires suivantes consistant à :
    - transporter une deuxième plaque (22) sur le train de rouleaux (9, 13) dans la direction de transport (T) ;
    - déposer la deuxième plaque (22) dans la direction de transport devant la première plaque (21) sur le train de rouleaux (9, 13) ; et
    - évacuer simultanément la première et la deuxième plaque (21, 22) du train de rouleaux (9, 13) dans un plateau (24).
  2. Procédé selon la revendication 1, caractérisé par
    - le transport d'au moins une troisième plaque sur le train de rouleaux (9, 13) dans la direction de transport (T) ;
    - le dépôt de la troisième plaque dans la direction de transport (T) devant la deuxième plaque (22) sur le train de rouleaux (9, 13) ; et
    - l'évacuation simultanée des première, deuxième et troisième plaques du train de rouleaux (9, 13) dans un plateau (24).
  3. Procédé selon l'une des revendications précédentes, caractérisé en ce que l'évacuation des plaques (21, 22) s'effectue transversalement à la direction de transport (T).
  4. Procédé selon la revendication 3, caractérisé en ce qu'un convoyeur transversal (15) met en oeuvre, lors de l'évacuation, les étapes suivantes consistant à :
    - soulever l'au moins une plaque (21, 22) du train de rouleaux (9, 13) ;
    - transporter la plaque soulevée (21, 22) transversalement à la direction de transport (T) du train de rouleaux (9, 13) au plateau (24) ;
    - déposer l'au moins une plaque (21, 22) sur le plateau (24) ; et ensuite
    - faire revenir le convoyeur transversal (15) dans la position de départ, de sorte que le convoyeur transversal (15) puisse évacuer à nouveau au moins une plaque (21, 22).
  5. Procédé selon la revendication 3, caractérisé en ce que sont mises en oeuvre, lors de l'évacuation, les étapes de procédé suivantes consistant à :
    - saisir l'au moins une plaque (21, 22) sur le train de rouleaux (9, 13) au moyen d'un grappin (25) ;
    - faire pivoter le grappin (25) autour d'un axe de pivotement (D) qui est orienté parallèlement à la direction de transport (T) ;
    - libérer la plaque pivotée (21, 22) du grappin (25) et déposer la plaque (21, 22) sur le plateau (24) ; et ensuite
    - faire revenir le grappin (25) dans la position de départ, de sorte que le grappin (25) puisse évacuer à nouveau au moins une plaque (21, 22).
  6. Procédé selon l'une des revendications 4 à 5, caractérisé en ce que le plateau (24) est abaissé d'au moins l'épaisseur de plaque après le dépôt de l'au moins une plaque (21, 22).
  7. Procédé selon l'une des revendications précédentes, caractérisé en ce que les plaques (21, 22) sont séparées par des éléments transversaux avant le transport sur le train de rouleaux (9) dans la direction de transport (T).
  8. Dispositif (14) pour l'évacuation rapide de plaques (21, 22) en acier d'un laminoir à chaud, comprenant
    - un train de rouleaux (9, 13) pour le transport d'une plaque (21, 22) dans la direction de transport (T), le train de rouleaux comprenant plusieurs rouleaux entraînés (9a) pour l'accélération de la plaque (21) dans la direction de transport (T) ;
    - au moins un moyen pour le dépôt de la plaque (21) sur le train de rouleaux (9, 13), la plaque (21) pouvant être déposée en une position définie ;
    le dispositif étant caractérisé par :
    - un convoyeur transversal (15) pour l'évacuation simultanée de plusieurs plaques (21, 22) transversalement à la direction de transport (T) du train de rouleaux (9, 13) sur un plateau (24) ou plusieurs convoyeurs transversaux (15, 15') pour l'évacuation synchrone de cette au moins une plaque (21) transversalement à la direction de transport (T) du train de rouleaux (9, 13) sur un plateau (24).
  9. Dispositif selon la revendication 8, caractérisé en ce que le moyen pour le dépôt comporte une butée (26a) et de préférence un actionneur pour la rentrée et la sortie de la butée dans la bande transporteuse de la plaque sur le train de rouleaux (9, 13).
  10. Dispositif selon la revendication 8, caractérisé en ce que le moyen pour le dépôt est conçu sous la forme d'un rouleau de train de rouleaux (9a) pouvant être freiné.
  11. Dispositif selon l'une des revendications 8 à 10, caractérisé en ce que le convoyeur transversal (15) comprend un rail de levage (27), un actionneur de levage (28) pour le levage du rail de levage (28), et un chariot de déplacement (29) pour le déplacement de la plaque (21) transversalement à la direction de transport (T) sur le rail de levage (27).
  12. Dispositif selon la revendication 11, caractérisé en ce que le rail de levage (27) comprend plusieurs bras (30), dans lequel dans la position de départ est disposé au moins un rouleau de train de rouleaux (31) entre deux bras (30).
  13. Dispositif selon l'une des revendications 8 à 10, caractérisé en ce que le convoyeur transversal (15) comprend un grappin (25) pour le serrage de la plaque (21) et une unité de pivotement (32) pour le pivotement de la plaque (21) autour d'un axe de rotation (D) orienté dans la direction de transport (T).
  14. Dispositif selon l'une des revendications 8 à 13, caractérisé en ce que le plateau (24) est conçu sous la forme d'une table de dépose (33) réglable en hauteur avec un actionneur pour le réglage en hauteur de la table de dépose (33).
EP14718347.9A 2013-05-21 2014-04-02 Procédé et dispositif servant à évacuer rapidement des grosses tôles d'un laminoir Active EP2999554B1 (fr)

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ATA50339/2013A AT514079B1 (de) 2013-05-21 2013-05-21 Verfahren und Vorrichtung zum schnellen Ausfördern von Grobblechen aus einem Walzwerk
PCT/EP2014/056560 WO2014187602A1 (fr) 2013-05-21 2014-04-02 Procédé et dispositif servant à évacuer rapidement des grosses tôles d'un laminoir

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EP2982453A1 (fr) * 2014-08-06 2016-02-10 Primetals Technologies Austria GmbH Réglage d'un profil de température ciblé sur une tête de bande et pied de bande devant la partie transversale d'une bande métallique
CN205659983U (zh) 2016-06-15 2016-10-26 日照宝华新材料有限公司 一种esp生产线用长公里数轧制辊
CN107358883A (zh) * 2017-08-24 2017-11-17 厦门强力巨彩光电科技有限公司 一种led灯板自动化快速降温设备
EP3793957A1 (fr) * 2018-05-15 2021-03-24 Saint-Gobain Glass France Convoyeur à rouleaux pour transporter une vitre
CN113449240B (zh) * 2020-03-24 2024-04-05 上海梅山钢铁股份有限公司 一种镀铝锌机组带钢表面温差对c翘影响预报方法
CN112453054A (zh) * 2020-09-21 2021-03-09 河钢股份有限公司承德分公司 一种连铸坯轧制系统
EP3974072B1 (fr) * 2020-09-24 2023-07-19 Primetals Technologies Austria GmbH Installation combinée de coulée et de laminage et procédé de fonctionnement de l'installation combinée de coulée et de laminage
CN113479593B (zh) * 2021-06-08 2022-09-30 北京科技大学设计研究院有限公司 托盘式热轧钢卷运输线的托盘跟踪装置及方法
CN114798722A (zh) * 2022-04-22 2022-07-29 山东钢铁集团永锋临港有限公司 一种等分圆弧相切孔型系统

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EP1909979B1 (fr) 2005-07-19 2010-10-27 ARVEDI, Giovanni Procede et installation pour fabriquer des plaques d'acier sans interruption
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WO2012095250A1 (fr) 2011-01-12 2012-07-19 Sms Siemag Ag Installation et procédé destinés à produire des bandes d'acier laminées à chaud

Also Published As

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EP2999554A1 (fr) 2016-03-30
EP3246102B1 (fr) 2019-07-31
CN105228762B (zh) 2018-04-06
CN105228762A (zh) 2016-01-06
MX2015015875A (es) 2016-03-04
BR112015029053A2 (pt) 2017-07-25
WO2014187602A1 (fr) 2014-11-27
KR20160013111A (ko) 2016-02-03
AT514079B1 (de) 2014-10-15
US20160101450A1 (en) 2016-04-14
AT514079A4 (de) 2014-10-15
EP3246102A1 (fr) 2017-11-22
RU2653518C2 (ru) 2018-05-10
RU2015154504A (ru) 2017-06-26

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