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EP4537950A1 - Installation et procédé de fabrication d'une bande métallique en fonctionnement continu ou en mode discontinu - Google Patents

Installation et procédé de fabrication d'une bande métallique en fonctionnement continu ou en mode discontinu Download PDF

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Publication number
EP4537950A1
EP4537950A1 EP23202853.0A EP23202853A EP4537950A1 EP 4537950 A1 EP4537950 A1 EP 4537950A1 EP 23202853 A EP23202853 A EP 23202853A EP 4537950 A1 EP4537950 A1 EP 4537950A1
Authority
EP
European Patent Office
Prior art keywords
plant
casting
slabs
slab
heating furnace
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.)
Pending
Application number
EP23202853.0A
Other languages
German (de)
English (en)
Inventor
Markus Fischer
Elmira MONTAZEROLZOHOUR
Juergen Scholler
Gero Schwarz
Alois Seilinger
Irene Watzinger
Michael Zahedi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Primetals Technologies Austria GmbH
Original Assignee
Primetals Technologies Austria GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Primetals Technologies Austria GmbH filed Critical Primetals Technologies Austria GmbH
Priority to EP23202853.0A priority Critical patent/EP4537950A1/fr
Priority to PCT/EP2024/078248 priority patent/WO2025078356A1/fr
Publication of EP4537950A1 publication Critical patent/EP4537950A1/fr
Pending legal-status Critical Current

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Classifications

    • 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
    • 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
    • B21B1/466—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 non-continuous process, i.e. the cast being cut before rolling
    • 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
    • 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
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B15/0007—Cutting or shearing the product
    • B21B2015/0014—Cutting or shearing the product transversely to the rolling direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2201/00—Special rolling modes
    • B21B2201/08—Batch rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2201/00—Special rolling modes
    • B21B2201/10—Endless rolling
    • 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
    • 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
    • B21B45/004—Heating the product

Definitions

  • the maximum mass flow that a continuous casting plant can currently deliver is in the range of 7 to 8 tons per minute. This results in a maximum annual production of approximately 3 million tons per year.
  • the production volume is between 4 and 6 million tons per year (Mt/y), which can easily be twice that of a continuous casting plant.
  • the second continuous casting plant produces a second slab with a maximum thickness of 250 mm, which can be reduced to a smaller thickness by means of a roughing stand.
  • the length of the output device and the feed device is 21.8 m.
  • This further arrangement according to the invention also makes it possible to achieve the shortest possible distance between the casting plant and the rolling mill. Furthermore, this design avoids CO2 emissions and achieves a more compact design.
  • the object is further achieved by a method for producing a metal strip with a system according to claims 1 - 14.
  • the system is dependent on a Final thickness, a desired CO2 footprint, a specified low energy consumption, a specified casting speed and/or a mechanical property of the metal strip to be produced are operated by an automation device in continuous operation or in batch operation.
  • the system is operated in continuous mode for grades with a final thickness of less than 1.5 mm.
  • the system is operated in continuous mode or in batch mode, depending on the desired mechanical properties, such as strength.
  • the system is operated in continuous operation if possible.
  • the plant is operated in batch mode.
  • FIG. 1 A plant for producing a metal strip is shown. This plant consists of a first continuous casting plant 1 and a second continuous casting plant 2 arranged parallel to the first casting plant 1. Following the A cutting device 3 is arranged in the first casting plant 1. The first cutting device 3 is arranged downstream of a last strand guide roller 31, which is located in the last strand guide segment 30 and defines one end of the casting plant 1. Downstream of the first cutting device 3 is an unloading device 5a, which unloads first slabs 40 cut by the cutting device 3 and feeds them to a slab transport device 16.
  • the slab transport device 16 can, for example, be guided via floor-mounted rails and cable, chain, or wheel drive as a slab ferry, or on rails located at a certain height—overhead—as a slab manipulator or crane.
  • the first slab 40 is unloaded transversely to the casting direction G, essentially at a right angle.
  • a feeding device 5b for feeding cut slabs 41.
  • a heating furnace 5c is assigned to the feeding device 5b so that the fed slabs 41 can be heated to a desired temperature.
  • the feeding device 5b is designed such that the slabs 41 are introduced transversely, essentially at a right angle to the casting direction G.
  • the discharge and feeding transversely to the casting direction G enables the most compact design possible for the discharge device 5a and the feeding device 5b.
  • the discharge device 5a and the feeding device 5b transport the slabs in the casting direction G, for example by means of driven rollers, and transversely to the casting direction G, the slab is lifted from below or above, for example by means of a lifting device, and then transported transversely to the casting direction G.
  • a first intensive heating device 6 and a first descaling device and/or intensive cooling device 7 can be arranged downstream of the discharge device 5b.
  • a rolling mill 8 is arranged downstream. The rolling mill 8 begins with a first rolling stand 8a.
  • the distance L between the end of the casting plant 1 and the beginning of the rolling mill should be as small as possible to minimize possible heat losses from the cast first slab, thus enabling continuous operation.
  • the distance L should be less than 100 m, preferably less than 80 m, particularly preferably less than 60 m.
  • a third separating device 9, a second intensive heating device 10, and a second descaling device and/or intensive cooling device 11 can be arranged downstream of the rolling mill.
  • a further rolling mill 12 can be arranged downstream.
  • a cooling device 13, a shear 14, and a coiling device 15 are located downstream.
  • the second continuous casting plant 2 produces second slabs, which can be rolled in a roughing stand 20 and separated by a second separating device 4.
  • cold slabs 43 can be fed from a second slab storage area. They can be guided by means of a transport device 17 through an automatic scarfing machine 22 to a heating device 23, and the transport device is subsequently connected to the heating furnace 5c and the feed device 5b so that the cold slabs can then be fed to the rolling mill 8.
  • the system has an automation device 45, which is connected, among other things, to the feed device 5a and the discharge device 5b and can control them in such a way that the cut first slab 40 can be accelerated and fed to the rolling mill 8 at a higher speed than the casting speed.
  • Fig. 2 A possible operating mode of the plant is shown. In this configuration, the plant operates in continuous mode, meaning that no slabs are added or removed.
  • the operating mode of the plant is shown as batch operation, with the first slabs 40 coming only from the casting plant 1.
  • the first slabs 40 can be accelerated after cutting at the separating device 3 and thus quickly passed through the discharge device 5a and the feeding device 5b. This allows them to reach the rolling mill 8 quickly. This keeps the temperature loss of the first slabs 40 as low as possible.
  • the speed of the first slabs 40 must then be adjusted again according to the process-related material flow.
  • Fig. 5 1 shows a variant of the system with a first induction heating furnace 25 instead of a discharge device.
  • heating of the first slab which is produced with the first casting system 1 is only necessary if grades are to be produced that must be cast slowly. For grades that are to be cast quickly, heating by means of the first induction heating furnace 28 is not necessary.
  • a slab handling device 25a for inserting and removing slabs is arranged downstream of the first induction heating furnace.
  • the slab transport device 16 transports the slabs either to the slab handling device 25a or away from it, for example to a slab storage area.
  • a second induction heating furnace 28 is arranged downstream of the first transport device 18 – which can also be thermally insulated.
  • This second inductive heating furnace 28 must be dimensioned such that it can heat the slowest-cast second slab to the temperature required for the rolling process in rolling mill 8.
  • a first buffer storage 28a – which is preferably thermally insulated – is arranged downstream of the second inductive heating furnace 28. The second slabs already produced can be stored in this first buffer storage 28a until they can be fed to rolling mill 8 with the aid of the slab transport device 16 and the slab manipulation device 25a.
  • a third inductive heating furnace 27 is assigned to the introduction of cold slabs.
  • a second thermally insulated buffer storage 26 is arranged upstream of the heating furnace, in which already heated cold slabs can be stored until needed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
EP23202853.0A 2023-10-10 2023-10-10 Installation et procédé de fabrication d'une bande métallique en fonctionnement continu ou en mode discontinu Pending EP4537950A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP23202853.0A EP4537950A1 (fr) 2023-10-10 2023-10-10 Installation et procédé de fabrication d'une bande métallique en fonctionnement continu ou en mode discontinu
PCT/EP2024/078248 WO2025078356A1 (fr) 2023-10-10 2024-10-08 Installation et procédé de fabrication d'une bande métallique en mode continu ou en mode discontinu

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP23202853.0A EP4537950A1 (fr) 2023-10-10 2023-10-10 Installation et procédé de fabrication d'une bande métallique en fonctionnement continu ou en mode discontinu

Publications (1)

Publication Number Publication Date
EP4537950A1 true EP4537950A1 (fr) 2025-04-16

Family

ID=88372213

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23202853.0A Pending EP4537950A1 (fr) 2023-10-10 2023-10-10 Installation et procédé de fabrication d'une bande métallique en fonctionnement continu ou en mode discontinu

Country Status (2)

Country Link
EP (1) EP4537950A1 (fr)
WO (1) WO2025078356A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1868748B1 (fr) * 2005-04-07 2008-10-15 ARVEDI, Giovanni Processus et systeme de fabrication de bandes et de feuilles metalliques sans rupture entre le moulage continu et le laminage
DE102008020412A1 (de) * 2007-08-24 2009-02-26 Sms Demag Ag Verfahren und Vorrichtung zum Herstellen eines Metallbandes durch Gießwalzen
US10576520B1 (en) * 2018-12-06 2020-03-03 Danieli & C. Officine Meccaniche S.P.A. Apparatus and method for the production of strip
WO2023186471A1 (fr) * 2022-03-29 2023-10-05 Sms Group Gmbh Installation de rouleaux lamineurs et procédé pour la faire fonctionner

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1868748B1 (fr) * 2005-04-07 2008-10-15 ARVEDI, Giovanni Processus et systeme de fabrication de bandes et de feuilles metalliques sans rupture entre le moulage continu et le laminage
DE102008020412A1 (de) * 2007-08-24 2009-02-26 Sms Demag Ag Verfahren und Vorrichtung zum Herstellen eines Metallbandes durch Gießwalzen
US10576520B1 (en) * 2018-12-06 2020-03-03 Danieli & C. Officine Meccaniche S.P.A. Apparatus and method for the production of strip
WO2023186471A1 (fr) * 2022-03-29 2023-10-05 Sms Group Gmbh Installation de rouleaux lamineurs et procédé pour la faire fonctionner

Also Published As

Publication number Publication date
WO2025078356A1 (fr) 2025-04-17

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