EP2285512B1 - Installation de coulée continue à plusieurs lignes - Google Patents

Installation de coulée continue à plusieurs lignes Download PDF

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Publication number
EP2285512B1
EP2285512B1 EP09753762.5A EP09753762A EP2285512B1 EP 2285512 B1 EP2285512 B1 EP 2285512B1 EP 09753762 A EP09753762 A EP 09753762A EP 2285512 B1 EP2285512 B1 EP 2285512B1
Authority
EP
European Patent Office
Prior art keywords
roller
continuous casting
straightener
strand
inner arc
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.)
Active
Application number
EP09753762.5A
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German (de)
English (en)
Other versions
EP2285512A1 (fr
Inventor
Günther DEIBL
Josef Guttenbrunner
Gerhard Kern
Reinhard Simon
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
Siemens VAI Metals Technologies GmbH Austria
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 Siemens VAI Metals Technologies GmbH Austria filed Critical Siemens VAI Metals Technologies GmbH Austria
Publication of EP2285512A1 publication Critical patent/EP2285512A1/fr
Application granted granted Critical
Publication of EP2285512B1 publication Critical patent/EP2285512B1/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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/1226—Accessories for subsequent treating or working cast stock in situ for straightening strands
    • 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
    • B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
    • B22D11/1282—Vertical casting and curving the cast stock to the horizontal
    • 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 invention relates to a multi-strand continuous casting for the production of metal strands with billet or billet cross section with a strand guide comprising a directional zone equipped with fürrichtaggregaten, wherein a plurality of strand delivery in succession arranged Adjustrichtaggregate in a common scaffold with comb-like stands in receiving openings formed between the uprights are arranged and each devisrichtaggregat a pair of rollers with an outer-bow roller and a relative movable inner-bow roller in associated roller carriage and a adjusting device for one of the two rollers, and optionally a rotary drive for one of the rollers comprises.
  • Attenuation units are used in single- or multi-strand continuous casting plants, in particular continuous casting plants for the production of steel strands with different strand cross-section formats, to bend straight an arcuate strand guiding zone, continuously solidifying metal strand in the transition region to the horizontal outlet roller table straight and by a defined with respect to the pullout speed uniform transport to ensure the strand guidance.
  • Greatering units can also be used to carry out a so-called soft reduction, whereby an improvement of the microstructure is achieved by this strand deformation in the final solidification region just before the sump tip.
  • Drive rectifying units usually comprise a pair of rollers, which is supported in a scaffolding frame.
  • a role of the pair of rollers preferably the role of the bow inner roller stand is adapted to adapt to changing strand thickness in the frame relative to the other role and is pressed by a hydraulic adjusting cylinder to the strand. This role is mostly with one Rotary drive connected.
  • These propulsion units are mounted one behind the other in the strand conveying direction on a common support frame and form the straightening zone in the continuous casting plant.
  • a continuous casting plant with individual drive-straightening units in this arrangement is known from WO 031070399 A1 , of the DE 10 2004 057 427 A1 or the DE 22 39 966 A1 already known.
  • From the DE 27 31 748 A1 is also a straightening roller stand known in which a plurality of successive pairs of rollers are arranged in comb-like arranged guides a machine stand.
  • the individual rollers are supported by bearing housings on a cross member, which cooperates with the comb-like guides.
  • Each cross member is adjustable by two pressure medium cylinder to the cast strand. Also in this case, it is necessary for disassembly of the drive unit to release the cross member of the pressure cylinders, the pressure medium cylinder can remain in the system.
  • From the EP 0 767 012 A2 is a precision rolling stand with a roll housing known in which two rollers are rotatable with their chocks and mounted adjustable by means of a adjusting device against each other.
  • the roll housing has an open frame and a frame closing crosshead, wherein the chock of the roller to be set is connected via the adjusting device with the crosshead.
  • Object of the present invention is therefore to avoid the disadvantages of the prior art and to propose a multi-strand continuous casting with a straightening zone, which is characterized by low maintenance requirements, as well as easy assembly and disassembly at a case necessary role change.
  • each drive assembly comprises a crosshead, which is releasably connected to the receiving opening for the Examrichtaggregat forming stanchers that hinged to the crosshead the adjusting device for the engageable inner-bow roller in that each roller of the pair of rollers is supported in a roller carriage and the roller carriage of the inner roller is slidably guided on guides of the uprights that the roller carriage of the inner-bow roller is connected to the adjusting device, and that the roller carriage of the outer-bow roller and the roller carriage Inner bow roller are hinged to the crosshead, wherein the roller carriage of the inner bow roller is articulated distance variable to the roller carriage of the outer bow roller on the crosshead.
  • propulsion unit Due to this particular configuration of the individual components of the propulsion unit, it is possible to remove or reinsert the entire propulsion unit with the release of a few fastening elements as a modular component, in particular also with the adjusting device for the driven inner arc roller, from the support framework common to several propulsion aggregates.
  • the roller carriage of the outer-bow roller and the roller carriage of the inner-bow roller are articulated on the crosshead, wherein the roller carriage of the inner-bow roller is articulated in a distance-variable manner to the roller carriage of the outer bow roller.
  • This articulation is preferably carried out with support tabs, which allow a relative movement of the two roller carriages to each other.
  • the joint installation and removal is easily possible and it can be compensated structural deviations on the skeleton and especially on the scaffold of the propulsion unit. It is thus achieved that on the one hand fixed the crosshead to the uprights and on the other hand, the roller carriage of the outer arch roller can be supported and secured in the ground area on support brackets in the receiving opening of the scaffold formed by the uprights.
  • the outer bow rollers form here, as in the entire strand guide framework, the fixed side of the strand guide on which the cast metal strand is supported on its transport through the continuous casting.
  • the media supply for the individualmaschinerichtaggregate in the straightening zone can be substantially simplified by each scaffold is assigned a media supply system for the supply of arranged in this scaffolding fürrichtaggregate and the individualmaschinerichtaggregate can be coupled by automatic dome devices when inserting the fürrichtaggregate in the receiving opening with the media supply system.
  • Media supply lines are guided on the scaffolds to the individualmaschinerichtaggregaten, which open in the bottom region of the respective receiving opening to support brackets in a coupling half of a multi-coupling.
  • the further coupling half of the multi-coupling is arranged.
  • the adjusting device centrally acts on a engageable inner-bow roller of the driving direction, is arranged in the direction of the longitudinal extension of the comb-like receiving opening and pivotable on the crosshead or hinged and pivotally or hingedly attached to the roller carriage of the inner-bow roller.
  • the inner-bow rollers are driven in the straightening zone of a continuous casting machine.
  • the rotary drive for the inner-bow roller directly on the drive rectifying unit, preferably on the roller carriage of the inner-bow roller, supported and connected via an angular gear with the inner-bow roller.
  • the support of the rotary drive via a torque arm.
  • the transmission is preferably designed as an angle gear.
  • the straightening zone for each casting strand of the multi-strand continuous casting plant is formed by a plurality of support structures arranged one behind the other.
  • the adjusting device for the engageable inner-bow roller of each drive rectifying unit is designed individually controllable and adjustable.
  • the adjusting device of this type comprises a pressure cylinder, a control block and a tracking system.
  • the control block is connected by control technology via a data line with the system control device.
  • the tracking system e.g. a position transmitter
  • the engageable inner bow roller is set at the start of casting on the thickness of the dummy bar and the subsequent hot strand.
  • the adjustment of the deformation wedge i. the gradual roll-to-roll reduction in soft reduction is achieved by activating the setting device in response to the position signal from the track-following system.
  • calibration strips are arranged on the roller carriage of the inner-bow roller and on the roller carriage of the outer-bow roller.
  • the two roller carriages can be moved towards each other until the roller carriage of the inner-bow roller bears against the roller carriages of the outer-bow roller via the calibrating bars. This position determines a reference distance for the strand thickness adjustment to be made.
  • FIGS. 1a . 1b and 2a . 2 B is the straightening zone of a six-stranded multi-strand continuous casting in a longitudinal section and a cross section in two representations illustrated schematically.
  • On a plant foundation 1 are on supporting frame 2 a, 2 b, 2 c, 2 d two supporting frameworks 3 a, 3 b releasably secured with clamping screws.
  • the support frame 3a is arcuate and the support frame 3b is straight. Together they form the straightening zone 5 of the continuous casting plant. Together, an arcuate, the straightening zone upstream strand guide continuous steel strand 6 is directed straight inmaschinerichtaggregaten 7 and possibly also subjected to a soft-reduction in these scaffolds.
  • each cast strand is assigned an independent support frame 3a, 3b, wherein either one or two of these support structures are supported on a support frame 2d.
  • the scaffolds 3a, 3b are formed as a frame construction, wherein a series of comb-like uprights 8 protrude from this scaffold and form between them receiving openings 9, are inserted into the individual propulsion units 7. Each four arranged in a square stanchion form such a receiving opening.
  • Each scaffold is designed to receive a plurality of propulsion units arranged one behind the other in the direction of transport of the strand, wherein the scaffold 3a receives three propulsion aggregates 7 and the scaffold 3b receives four propulsion units 7.
  • Each of these Examrichtaggregate 7 forms a self-contained unit that can be installed or removed as a whole.
  • Each drive rectifying unit has a crosshead 11, which forms a support frame for all components of the drive rectifying unit.
  • the crosshead 11 is releasably secured to four uprising, together a receiving opening 9 limiting stators 8 at the upper ends with connecting bolts 12 or with another fastener.
  • a roller carriage 16 is pivotally connected to a pivot pin 17.
  • the inner-bow roller 18 is in support bearings rotatably supported.
  • the roller carriage 16 is guided with its guide grooves 19a on radially aligned guides 19, usually on interchangeable guide rails, in the curved support frame 3a in the radial direction and in the horizontal expiring straight support frames 3b in the vertical direction.
  • roller carriage 16 of the inner-bow roller 18 of the roller carriage 20 of the outer-bow roller 21 is articulated, which can be releasably secured with fastening elements on a bottom plate 23 in the receiving opening 9.
  • a small relative mobility of the roller carriage 16, 20 is sufficient, which compensates for small differences in distance due to production and avoids assembly-related tension in the drive-bearing unit.
  • support bolts 17 are guided on roller carriage 16 of the inner-bow roller 18 in non-illustrated slots on support plates 26, as well as the roller carriage 20 of the outer-bow roller 21 .
  • the roller carriage 20 is also radially on the guides 19 of the uprights 8 with guide grooves 19a or vertically guided.
  • the inner-bow roller 18 and the outer-bow roller 21 of a drive-straightening unit form a cooperating pair of rollers.
  • the adjusting device 13 acts centrally on the engageable inner-bow roller 18 via the roller carriage 16. Specifically, in the formation of the adjusting device as a pressure cylinder 13a this is aligned in the direction of the longitudinal extent of the comb-like receiving opening 9, so that the line of action of the applied force, the axis of rotation of the inner-bow roller 18 intersects (is not shown in detail).
  • the roller carriage 16 of the inner-bow roller 18 and the inner-bow roller 18 can be moved relative to the outer-bow roller 21 and thus employed to the continuous casting 6 continuous steel strand with a predetermined or regulated contact pressure, the straightening or ensures a predetermined reduction in thickness (soft reduction or other metallurgical treatment).
  • the adjusting device 13 or the pressure-medium cylinder 13a is assigned a control block 27 and a track-following system 28.
  • a tracking system for example, encoders are provided which detect the position of the piston of the pressure medium cylinder.
  • Kalibrierangn 30 on the two roller carriages 16, 20 are provided.
  • FIG. 1 shows driven inner-bow rollers 18a and non-driven inner-bow rollers 18b.
  • the rotary drive 31 of the driven inner-bow roller 18a which is formed by an electric motor, is fastened to the crosshead 11 and is connected to the drive shaft of the inner-bow roller 18a via a gear 32 preferably designed as an angular gear.
  • each support stand 3a, 3b for each strand a common media supply system 33 arranged for all in the respective scaffold Greater 7 assigned.
  • a common supply line lead branch lines for each medium to a common coupling device 34 on the bottom plate 23 of the respective receiving opening of a drive rectifying unit.
  • a coupling half of this designed as a multi-coupling coupling device 34 is attached to the bottom plate and the second coupling half is attached to the roller carriage 20 of the outer bow roller 21.
  • FIG. 3 shows the essential components of a Schwarzetaggregates in a Schrägriss, as it can be installed as an assembly of the arcuate or straight scaffold substantially or be removed from this.
  • the registered reference numbers refer to the above description with reference to the FIGS. 1a to 2b ,

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

Claims (10)

  1. Installation de coulée continue à plusieurs lignes pour la fabrication de barres de métal à section transversale de billette ou de bloom, comprenant un corset de guidage qui comprend une zone de dressage (5) équipée de mécanismes extracteurs (7), plusieurs mécanismes extracteurs (7) disposés les uns derrière les autres dans le sens de l'extraction étant agencés dans un cadre de support commun (3a, 3b) présentant des colonnes (8) exécutées à la manière d'un peigne, dans des ouvertures de réception (9) formées entre les colonnes, et chaque mécanisme extracteur comprenant une paire de rouleaux, dont un rouleau de courbure extérieur (21) et un rouleau de courbure intérieur (18) mobile par rapport à celui-ci dans des chariots à rouleaux associés (16, 20), et un dispositif de réglage (13) pour un des deux rouleaux, ainsi que, le cas échéant, un entraînement en rotation (31) pour un des rouleaux, caractérisée en ce
    que chaque mécanisme extracteur (7) comprend une traverse (11) qui est reliée de manière détachable aux colonnes (8) formant une ouverture de réception (9) pour le mécanisme extracteur,
    que le dispositif de réglage (13) pour le rouleau de courbure intérieur (18) réglable est articulé sur la traverse (11),
    que chaque rouleau de la paire de rouleaux est supporté dans un chariot à rouleau (16, 20) et le chariot à rouleau (16) du rouleau de courbure intérieur (18) est guidé de manière à pouvoir se déplacer sur des glissières (19) des colonnes (8),
    que le chariot à rouleau (16) du rouleau de courbure intérieur (18) est relié au dispositif de réglage (13), et
    que le chariot à rouleau (20) du rouleau de courbure extérieur (21) et le chariot à rouleau (16) du rouleau de courbure intérieur (18) sont articulés sur la traverse (11), le chariot à rouleau (16) du rouleau de courbure intérieur (18) étant articulé sur la traverse (11) d'une manière permettant de modifier sa distance par rapport au chariot à rouleau (20) du rouleau de courbure extérieur (21).
  2. Installation de coulée continue à plusieurs lignes selon la revendication 1, caractérisée en ce que le chariot à rouleau (20) du rouleau de courbure extérieur (21) est monté en position fixe dans le cadre de support (3a, 3b).
  3. Installation de coulée continue à plusieurs lignes selon l'une des revendications précédentes, caractérisée en ce qu'un système d'alimentation en fluides (33) pour l'alimentation des mécanismes extracteurs (7) agencés dans le cadre de support (3a, 3b) est associé à chaque cadre de support (3a, 3b) et les mécanismes extracteurs individuels (7) peuvent être couplés à ce système d'alimentation en fluides (33) grâce à des dispositifs de couplage automatique (34) lors de l'insertion des mécanismes extracteurs (7) dans l'ouverture de réception (9).
  4. Installation de coulée continue à plusieurs lignes selon l'une des revendications précédentes, caractérisée en ce que le dispositif de réglage (13) agit de manière centrée sur un rouleau de courbure intérieur (18) réglable du mécanisme extracteur (7), est disposé dans le sens de la longueur de l'ouverture de réception (9) en peigne et est supporté de manière pivotante ou articulée sur la traverse (11) et est fixé de manière pivotante ou articulée sur le chariot à rouleau (16) du rouleau de courbure intérieur (18).
  5. Installation de coulée continue à plusieurs lignes selon l'une des revendications précédentes, caractérisée en ce que l'entraînement en rotation (31) pour le rouleau de courbure intérieur (18) est supporté directement sur le mécanisme extracteur (7), de préférence sur le chariot à rouleau (16) du rouleau de courbure intérieur (18), et est relié au rouleau de courbure intérieur (18) par le biais d'une transmission (32).
  6. Installation de coulée continue à plusieurs lignes selon l'une des revendications précédentes, caractérisée en ce que des cadres de support (3a, 3b) indépendants les uns des autres et des mécanismes extracteur (7) indépendants les uns des autres sont associés aux coulées individuelles (6) de l'installation de coulée continue à plusieurs lignes dans la zone de dressage (5).
  7. Installation de coulée continue à plusieurs lignes selon l'une des revendications précédentes, caractérisée en ce que la zone de dressage (5) pour chaque coulée (6) de l'installation de coulée continue à plusieurs lignes est formée par plusieurs cadres de support (3a, 3b) disposés les uns derrière les autres.
  8. Installation de coulée continue à plusieurs lignes selon l'une des revendications précédentes, caractérisée en ce que le dispositif de réglage (13) pour le rouleau de courbure intérieur (18) réglable de chaque mécanisme extracteur (7) est exécuté de manière à pouvoir être commandé individuellement.
  9. Installation de coulée continue à plusieurs lignes selon la revendication 8, caractérisée en ce que le dispositif de réglage (13) comprend un vérin hydraulique (13a), un bloc de commande (27) et un système de suivi de trajectoire (28) et le bloc de commande est, de préférence, relié au dispositif de pilotage de l'installation par le biais d'une ligne de données.
  10. Installation de coulée continue à plusieurs lignes selon la revendication 9, caractérisée en ce que des barres de calibrage (30) pour le calibrage du système de suivi de trajectoire (28) sont placées sur le chariot à rouleau (16) du rouleau de courbure intérieur (18) et sur le chariot à rouleau (20) du rouleau de courbure extérieur (21).
EP09753762.5A 2008-05-26 2009-04-28 Installation de coulée continue à plusieurs lignes Active EP2285512B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT8332008A AT506824B1 (de) 2008-05-26 2008-05-26 Mehrstrang-stranggiessanlage
PCT/EP2009/055096 WO2009144107A1 (fr) 2008-05-26 2009-04-28 Installation de coulée continue à plusieurs lignes

Publications (2)

Publication Number Publication Date
EP2285512A1 EP2285512A1 (fr) 2011-02-23
EP2285512B1 true EP2285512B1 (fr) 2013-10-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP09753762.5A Active EP2285512B1 (fr) 2008-05-26 2009-04-28 Installation de coulée continue à plusieurs lignes

Country Status (5)

Country Link
EP (1) EP2285512B1 (fr)
KR (1) KR101622100B1 (fr)
CN (1) CN102066022B (fr)
AT (1) AT506824B1 (fr)
WO (1) WO2009144107A1 (fr)

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AT509352B1 (de) * 2010-02-05 2014-06-15 Siemens Vai Metals Tech Gmbh Strangführungssegment in kassettenbauweise mit einzelrollenanstellung
JP5657159B1 (ja) * 2014-05-22 2015-01-21 新日鉄住金エンジニアリング株式会社 ロール圧下装置
AT516412B1 (de) * 2014-10-28 2017-07-15 Primetals Technologies Austria GmbH Strangführungsrolleneinheit für eine Stranggießmaschine
CN105170707B (zh) * 2015-10-09 2017-04-12 太原科技大学 一种组合式矫直机
CN105328153B (zh) * 2015-11-23 2017-07-07 中冶连铸技术工程有限责任公司 一种多流板坯连铸机扇形段传动装置布置方式
AT15757U1 (de) * 2016-11-22 2018-05-15 Primetals Technologies Austria GmbH Stranggießanlage mit flexibler Konfiguration der Richtstrecke
IT201700034742A1 (it) * 2017-03-29 2018-09-29 Danieli Off Mecc Apparato per la colata continua e relativo procedimento
CN107962158A (zh) * 2017-12-28 2018-04-27 黑龙江建龙钢铁有限公司 一种用于炼钢的方坯连铸弧形段装置
AT521416B1 (de) * 2018-07-02 2024-01-15 Primetals Technologies Austria GmbH Strangführungssegment mit individuell verschiebbaren Strangführungsrollen
CN109482830B (zh) * 2018-12-13 2025-03-18 中冶南方连铸技术工程有限责任公司 牌坊式拉矫机及采用其进行压下的小方坯连铸机
AT522265B1 (de) 2019-03-06 2021-12-15 Primetals Technologies Austria GmbH Umbau einer stranggiessanlage für knüppel- oder vorblockstränge
CN111992687A (zh) * 2020-07-10 2020-11-27 敬业钢铁有限公司 一种连铸机导向组件纠偏装置及其方法
CN112355262B (zh) * 2020-11-09 2021-10-15 湖南工程学院 一种用于板坯连铸动态轻压下的控制装置
CN113976845B (zh) * 2021-11-22 2023-05-26 马钢集团设计研究院有限责任公司 一种连铸铸流气动自动调节导向装置

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DE102004057427A1 (de) * 2004-11-27 2006-06-01 Sms Demag Ag Vorrichtung und Verfahren zum Stranggießen

Also Published As

Publication number Publication date
AT506824B1 (de) 2013-01-15
CN102066022B (zh) 2014-04-16
KR20110019383A (ko) 2011-02-25
EP2285512A1 (fr) 2011-02-23
AT506824A1 (de) 2009-12-15
WO2009144107A1 (fr) 2009-12-03
KR101622100B1 (ko) 2016-05-18
CN102066022A (zh) 2011-05-18

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