WO2016045818A1 - Procédé de transformation d'une installation de coulée de brames monobrin en une installation de coulée de billettes multibrin et vice versa - Google Patents

Procédé de transformation d'une installation de coulée de brames monobrin en une installation de coulée de billettes multibrin et vice versa Download PDF

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Publication number
WO2016045818A1
WO2016045818A1 PCT/EP2015/066820 EP2015066820W WO2016045818A1 WO 2016045818 A1 WO2016045818 A1 WO 2016045818A1 EP 2015066820 W EP2015066820 W EP 2015066820W WO 2016045818 A1 WO2016045818 A1 WO 2016045818A1
Authority
WO
WIPO (PCT)
Prior art keywords
billet
strand
continuous casting
slab
mold
Prior art date
Application number
PCT/EP2015/066820
Other languages
German (de)
English (en)
Inventor
Johann Penn
Thomas Penn
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 EP15748193.8A priority Critical patent/EP3197618B1/fr
Priority to RU2017107961A priority patent/RU2689259C2/ru
Publication of WO2016045818A1 publication Critical patent/WO2016045818A1/fr

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Classifications

    • 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
    • B22D11/14—Plants for 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
    • 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
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • 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
    • B22D11/14—Plants for continuous casting
    • B22D11/141—Plants for continuous casting for vertical casting
    • 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
    • B22D11/14—Plants for continuous casting
    • B22D11/147—Multi-strand plants

Definitions

  • the present invention relates to the technical field of continuous casting.
  • Continuous casting today casts the majority of the world steel produced annually in continuously operated continuous casters into strands of varying cross-sections (e.g., slabs, billets, billets, profiles).
  • the present invention relates to a method for the rapid conversion of a single-strand slab caster (ie, a continuous casting plant for continuous casting of liquid steel into a strand having a slab cross-section) into a multi-strand billet continuous casting plant (ie, a continuous casting plant for continuous casting of liquid steel into multiple strands having a billet cross section ).
  • the invention also relates to a method for the rapid conversion of a multi-strand billet continuous casting plant into a single-strand slab continuous casting plant.
  • the object of the present invention is to provide a method for the rapid conversion of a single-strand slab
  • a mold for pouring liquid steel into a slab strand and an oscillating unit for oscillating the mold
  • a strand guide for supporting, guiding and cooling the slab strand
  • the strand guide comprises a plurality of hydraulic Has slidably adjustable segments, the slab strand is cooled in the segments by cooling nozzles and optionally reduced in thickness, the segments with a
  • Rear structure mechanically and fluidly connected to one hydraulic and one water supply
  • the conversion process according to the invention can both continuous slab caster with a straight or a curved Mold are quickly converted into a multi-strand billet caster.
  • the machine head (ie, the mold and the oscillating unit) of the continuous slab caster is first rebuilt.
  • a common support frame is installed and connected to the mainland of the continuous caster.
  • the oscillating units and the oscillating molds of the billet caster are used. Thanks to the common support frame, the installation and removal of the machine head of the multi-strand billet continuous caster can be carried out very quickly.
  • the oscillating units and molds of the multi-strand billet continuous casting machine are not even solved by the common support frame, but installed and removed as a module.
  • roller pairs are connected to the existing rear construction.
  • the cooling nozzles of the roller pairs are connected to the existing water supply of the continuous casting machine.
  • at least one extraction unit - e.g. in the form of a pair of rollers with driven rollers - for extracting several billet strands from the molds connected to the rear construction of the continuous casting and the extraction unit connected to the hydraulic laulikmakers the continuous casting.
  • the object is achieved by a method for converting a multi-strand billet-strand casting into a single-strand slab continuous casting, wherein the billet continuous casting plant comprises: - A common support frame for several billet strands, and per billet strand per a mold for potting liquid steel in a billet strand and one each
  • Oscillating unit for oscillating the mold
  • a strand guide for supporting, guiding and cooling the billet strands, the strand guide having a plurality of pairs of rolls for guiding a plurality of billet strands and cooling nozzles for cooling the billet strands, the pairs of rolls being connected to a rear construction of the continuous casting plant;
  • At least one pullout unit for removing the billet strands from the molds
  • multi-strand billet continuous casting machine are quickly removed by the common support frame and the machine head of the slab continuous casting are used quickly.
  • the existing rear construction as well as the existing water and hydraulic supplies can be reused.
  • a bending device for deflecting the vertical slab strand is arranged on a circular arc path with radius.
  • the segments in the strand guide of the slab continuous casting machine are connected to the rear structure in such a way that the radius of curvature Ri of the slab continuous casting machine is Rioi Ri 2 * Rioi where Rioi is the radius of curvature of the billet-type casting machine.
  • FIG. 3 shows a representation of a multi-strand billet continuous casting plant with curved molds
  • FIG. 4 shows a representation of a machine head of a
  • 1 is a single-strand slab continuous casting 1 with a straight mold 2, an oscillating unit 3, a strand guide 4, consisting of a bending device 5 for bending the vertical slab strand B on a circular arc with radius R and a total of 14 hydraulically adjustable segments 4a. .4n shown.
  • the segments 4a ... 4h serve to guide the slab strand B on the circular arc R or Ri and to cool the slab strand by cooling nozzles and, if necessary, to reduce its thickness (for example by a soft core or liquid core reduction).
  • the following segments 4i ... 4n serve to guide the slab strand B horizontally and, if necessary, to further reduce the thickness of the slab strand B.
  • the oscillating unit 3 is mechanically connected to the mainland 6 of the continuous casting and fluidly connected to a hydraulic supply; Furthermore, of course, the mold 2 is connected to the water supply.
  • the segments 4a ... 4n each with the
  • Rear construction 7 releasably mechanically connected and fluidly connected to one hydraulic and one water supply.
  • the slab strand B can be reduced in its thickness by the at least four hydraulic cylinders of each segment.
  • the slab strand B can be cooled by cooling nozzles.
  • the water supply from the mold 2 and the hydraulic supply from the oscillating unit 3 are disconnected. This is done by uncoupling quick couplings. Subsequently, the mold 2 and the oscillating unit 3 is removed and instead a common support frame 111 (see FIG. 4) for three billet strands K. In the common support frame 111, three oscillating units 103 and three molds 102 are used with billet format. The common support frame 111 is connected to the mainland 6.
  • the operability of the machine head of the billet continuous caster 101 is established.
  • the segments 4a ... 4n are disconnected from the water and hydraulic supply, the segments released from the rear structure 7 and extended from the continuous casting over the rails shown;
  • the bending device 5 is removed.
  • roller pairs 104a ... 104i are connected to the existing rear construction 7 and the cooling nozzles of the roller pairs are connected to the existing water supply.
  • a plurality of pairs of rollers are formed as pull-out units, wherein the pairs of rollers are driven by a motor.
  • these pairs of rollers are connected to a hydraulic connection. From FIG. 2 it can be seen that not all slab segments have been replaced by pairs of rolls. In general, this is not necessary since the billet strands are typically not reduced in thickness in the horizontal outlet region.
  • the billet casting plant of FIG. 3 has curved molds 102.
  • the bent molds 102 eliminate the need for a bending device for the billet strands K to install. This will further accelerate the conversion.
  • Each bent mold 102 is oscillated by an oscillating unit 103, with three
  • oscillating units 103 are supported on the common support frame 111.
  • the common support frame 111 is installed below the slab mold 2, which of course is removed prior to installation.
  • the pull-out units 108 are uncoupled from the hydraulic supply of the continuous casting installation 101, the pull-out units 108 are released from the rear construction 7 and removed from the continuous casting installation. Subsequently, the cooling nozzles of the roller pairs 104a... 104g are also decoupled from the water supply, the roller pairs are released from the rear construction 7 and removed from the continuous casting installation. Furthermore, a plurality of hydraulically adjustable segments 4a ... 4n (see FIG. 1) for guiding and cooling the slab strand B are introduced into the continuous casting plant and the segments 4a
  • the segments 4a... 4n are coupled to the water supply and the hydraulic supply of the continuous casting plant so that the slab strand B in the segments 4a... 4n can be cooled by cooling nozzles and optionally reduced in thickness.
  • the water supply to the dies 102 and the hydraulic supply is disconnected from the oscillating units 103 of the continuous casting.
  • the common support frame 111 and the molds 102 and oscillating units 103 inserted therein are removed, and instead, a mold 2 for casting liquid steel into a slab strand B and an oscillating unit 3 for oscillating the mold 2 are installed.
  • the scope of the invention also includes the conversion of a multi-strand (e.g., double-stranded) continuous slab caster into a plurality (e.g.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

L'invention concerne un procédé de transformation d'une installation de coulée de brames monobrin (1) en une installation de coulée de billettes multibrin (101) et vice versa. Le but de l'invention est de réduire le temps nécessaire à la conversion. Ce but est atteint par les étapes suivantes consistant à : i) déconnecter l'alimentation en eau de la coquille (2) et déconnecter l'alimentation hydraulique de l'unité d'oscillation (3) de l'installation de coulée ; ii) démonter le moule (2) et l'unité d'oscillation (3) et monter un cadre de support commun (111) pour plusieurs brins de billettes (K) dans la zone de la tête de machine de l'installation de coulée, le cadre de support commun (111) étant relié à la terre ferme (6) de l'installation de coulée ; iii) monter une coquille (102) destinée à la coulée d'acier liquide dans un brin de billettes (K) et une unité d'oscillation (103) destinée à faire osciller la coquille (102) par brin de biellette (K), une pluralité d'unités d'oscillation (103) étant reliées au cadre de support commun (111) ; iv) connecter l'alimentation en eau aux coquilles (2) et connecter l'alimentation hydraulique aux unités d'oscillation (3) ; v) déconnecter l'alimentation en eau et l'alimentation hydraulique des segments (4a ... 4n) ; vi) détacher les segments (4a... 4n) de la structure arrière (7) de l'installation de coulée et démonter les segments (4a... 4n) de l'installation de coulée ; vii) raccorder des paires de rouleaux (104A... 104i) pour guider une pluralité de brins de billettes (K) à la structure arrière (7), les brins de billettes (K) étant supportés des deux côtés par une paire de rouleaux (104a... 104i) et les refroidir par des buses de refroidissement ; viii) connecter les buses de refroidissement des paires de rouleaux (104a... 104i) de l'alimentation en eau ; ix) raccorder au moins une unité d'extraction (108) pour extraire plusieurs brins de biellettes (K) des coquilles (102) à la structure arrière (7) ; et x) connecter l'unité d'extraction (108) à l'alimentation hydraulique.
PCT/EP2015/066820 2014-09-23 2015-07-23 Procédé de transformation d'une installation de coulée de brames monobrin en une installation de coulée de billettes multibrin et vice versa WO2016045818A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP15748193.8A EP3197618B1 (fr) 2014-09-23 2015-07-23 Procédé de transformation d'une installation de coulée de brames monobrin en une installation de coulée de billettes multibrin et vice versa
RU2017107961A RU2689259C2 (ru) 2014-09-23 2015-07-23 Способ быстрого переоборудования одноручьевой слябовой установки непрерывной разливки в многоручьевую сортовую установку непрерывной разливки и наоборот

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50676/2014A AT516300B1 (de) 2014-09-23 2014-09-23 Verfahren zum raschen Umbau einer einsträngigen Brammen-Stranggießanlage in eine mehrsträngige Knüppel-Stranggießanlage und vice versa
ATA50676/2014 2014-09-23

Publications (1)

Publication Number Publication Date
WO2016045818A1 true WO2016045818A1 (fr) 2016-03-31

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PCT/EP2015/066820 WO2016045818A1 (fr) 2014-09-23 2015-07-23 Procédé de transformation d'une installation de coulée de brames monobrin en une installation de coulée de billettes multibrin et vice versa

Country Status (4)

Country Link
EP (1) EP3197618B1 (fr)
AT (1) AT516300B1 (fr)
RU (1) RU2689259C2 (fr)
WO (1) WO2016045818A1 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN108856309A (zh) * 2018-07-03 2018-11-23 宣化钢铁集团有限责任公司 采用比例伺服控制的钢轧界面转向辊道

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107790657B (zh) * 2017-10-24 2019-07-12 东北特钢集团大连特殊钢有限责任公司 大弧型半径圆板坯兼容连铸机及其工艺

Citations (2)

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WO2005120746A2 (fr) * 2004-06-09 2005-12-22 Voest-Alpine Industrieanlagenbau Gmbh & Co Installation de coulee continue et procede permettant au choix de couler une large barre metallique ou un maximum de deux barres metalliques etroites
WO2009141210A1 (fr) * 2008-05-23 2009-11-26 Siemens Vai Metals Technologies Gmbh & Co Installation de coulée continue pour la coulée d’une barre métallique présentant une section transversale de billette ou de blooms

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DE1957690A1 (de) * 1969-11-17 1971-05-27 Demag Ag Vorrichtung zum Ein- oder Ausbau von Stuetzrahmen fuer Metall-,insbesondere Stahlstraenge in Stranggiessanlagen
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WO2005120746A2 (fr) * 2004-06-09 2005-12-22 Voest-Alpine Industrieanlagenbau Gmbh & Co Installation de coulee continue et procede permettant au choix de couler une large barre metallique ou un maximum de deux barres metalliques etroites
WO2009141210A1 (fr) * 2008-05-23 2009-11-26 Siemens Vai Metals Technologies Gmbh & Co Installation de coulée continue pour la coulée d’une barre métallique présentant une section transversale de billette ou de blooms

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108856309A (zh) * 2018-07-03 2018-11-23 宣化钢铁集团有限责任公司 采用比例伺服控制的钢轧界面转向辊道
CN108856309B (zh) * 2018-07-03 2024-03-22 宣化钢铁集团有限责任公司 采用比例伺服控制的钢轧界面转向辊道

Also Published As

Publication number Publication date
RU2017107961A3 (fr) 2018-11-13
RU2017107961A (ru) 2018-10-24
AT516300B1 (de) 2016-09-15
EP3197618B1 (fr) 2018-10-10
AT516300A1 (de) 2016-04-15
EP3197618A1 (fr) 2017-08-02
RU2689259C2 (ru) 2019-05-24

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