EP2663412A1 - Equipment and method for producing hot-rolled strips - Google Patents

Equipment and method for producing hot-rolled strips

Info

Publication number
EP2663412A1
EP2663412A1 EP11808201.5A EP11808201A EP2663412A1 EP 2663412 A1 EP2663412 A1 EP 2663412A1 EP 11808201 A EP11808201 A EP 11808201A EP 2663412 A1 EP2663412 A1 EP 2663412A1
Authority
EP
European Patent Office
Prior art keywords
slabs
rolling
width
casting machine
twin
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.)
Granted
Application number
EP11808201.5A
Other languages
German (de)
French (fr)
Other versions
EP2663412B1 (en
Inventor
Karl Hoen
Jürgen Müller
Ingo Schuster
Axel Weyer
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.)
SMS Group GmbH
Original Assignee
SMS Siemag AG
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 SMS Siemag AG filed Critical SMS Siemag AG
Publication of EP2663412A1 publication Critical patent/EP2663412A1/en
Application granted granted Critical
Publication of EP2663412B1 publication Critical patent/EP2663412B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • B21B1/22—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 plates, strips, bands or sheets of indefinite length
    • B21B1/30—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 plates, strips, bands or sheets of indefinite length in a non-continuous process
    • B21B1/32—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 plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
    • B21B1/34—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 plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work by hot-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

Definitions

  • the invention relates to a system and a method for producing hot strip, wherein a casting machine for generating at least one casting strand, a separating device for separating slabs from the casting strand, a transport system with a switching device for selectively transporting the slabs from the casting machine be used either in a rolling mill or to a special treatment facility.
  • the rolling train is used to produce the hot strip from the slabs having a width smaller than a roll width threshold.
  • a production planning method for increasing the throughput in hot strip production is known from EP 1 363 750.
  • the rolling mill is served, on the one hand, by a two-strand caster, which produces thin slabs, and, on the other, by slabs from a warehouse.
  • the slabs for the warehouse are produced by a twin caster, which pours thick slabs. These thick slabs are then fed to a downstream roughing unit via a reheating furnace via a slab feed device and rolled into slivers, which are fed to the rolling train in the form of coils.
  • the coil feeder bypasses unplanned downtime of the caster, however A huge amount of energy is needed to heat the coils back to rolling temperature.
  • a cast rolling mill which also combines continuous casting and rolling of slabs, is described in DE 693 16 703.
  • the document describes a method for producing wound strip, sheet in wound form or discrete sheet metal plates.
  • the casting plant is operated by single-strand casting and produces slabs of various widths, which are either placed directly in an oven to be fed to the rolling line or stored in a slab storage area.
  • the distinguishing criterion of whether the slabs are fed from the warehouse or directly from the casting machine to the rolling line depends on the production capacity of the casting machine.
  • the slabs from the warehouse are used during production breaks of the casting machine for utilization of the connected rolling mill.
  • a disadvantage of the known casting rolling is that the maximum width of the casting strands is matched to the width of the rolling mills, the casting mill is inflexible in production and thus no increase in capacity can be achieved.
  • Another disadvantage is that an energy-saving driving style is hardly possible by a plurality of ovens in the system for reheating the cold slabs or coils.
  • the object of the invention is to develop a known system and a known method for producing hot strip, to increase the production capacity and increase the flexibility already in the production to achieve the cast strand and offer an energy-saving configuration of the plant, which thus produces cost-effectively.
  • This object is achieved by the subject matter of claim 1.
  • the casting machine is designed as a twin casting machine for producing the at least one casting strand with a bend that is smaller or greater than the rolling width threshold value and that a first control device for the switch device is provided for branching the slabs having a width smaller than the roll width threshold into the rolling train and for branching the slabs having a width greater than the roll width threshold for the special treatment device.
  • the width of the slabs to be rolled is predetermined or limited by the width of the rolling train, in particular the width of the finishing train.
  • the roll width threshold corresponds to the maximum width of the hot strip that can be processed in the finishing train.
  • the slabs, whose width is greater than the rolling width threshold, are not transferred to the connected rolling train, but are instead converted into a special rolling mill. treatment facility.
  • This special treatment device can be an external slab stock, a special rolling mill for slabs of this width o.ä. be.
  • the casting machine is designed as a twin-casting machine, offers the advantage that not only in the single-strand process can be produced, but also in the two-strand process, the twin casting process.
  • This application of the twin-casting machine offers the advantage of achieving increased flexibility in slab production, both in width and in speed.
  • the subsequent Weichenein- direction which is provided for branching the slabs m with a width smaller than the roll width threshold in the line of the rolling mill, offers the advantage that the slabs can be fed without significant temperature losses directly to the rolling train or that the slabs m It can be diverted to a width greater than the roll width threshold for the special treatment device. This results in an increased flexibility in slab production.
  • the productivity of the rolling mill is still fully guaranteed since the rolling mill is served from a first stock with slabs if the supply of slabs from the twin-casting machine is insufficient.
  • the twin casting machine is arranged offset to the line of the rolling train and a transport system with a first feeder, for example, a Querverfahr worn is provided, in this way, all slabs produced with a width smaller than the roll width threshold directly to the rolling train be fed and all slabs with a width greater than the Walzumblen- Threshold further procedure in the special treatment facility. Due to the first feeding device of the transport system, the slabs from the twin casting machine immediately enter a holding furnace and only have to be heated to rolling temperature in an energy-saving manner.
  • a first feeder for example, a Querverfahr worn
  • a holding furnace for holding the slabs having a width smaller than the rolling width threshold is designed such that the slabs are heated to rolling temperature with little energy.
  • the design of the stove not only refers to the heating performance, but also to a short structural design of the holding furnace.
  • the rolling train at least one of the following components, preferably in the direction of passage of the slabs seen in the order mentioned:
  • the transport system further comprises a second feeding device for bread with a breadcrimber as the threshold value from a first storage in the rolling train, so that in a production of slabs with a width greater than the roll width threshold by the twin casting machine, the downstream rolling mill remains fully loaded.
  • a second feeding device for bread with a breadcrimber as the threshold value from a first storage in the rolling train so that in a production of slabs with a width greater than the roll width threshold by the twin casting machine, the downstream rolling mill remains fully loaded.
  • this also applies to production pauses of the twin casting machine.
  • the second feeding device is formed with a second control device, which makes it possible that the feeding of the slabs from the first bearing into the rolling train is made possible when the rolling train alone is not loaded with slabs from the twin casting machine. This is true, for example, when the twin caster produces slabs that are wider than the roll width threshold. For this it is advantageous that the rolling mill can produce decoupled from the twin casting machine.
  • the casting machine for a special treatment device which is designed either as a second bearing or as a special processing line, including a rolling mill, for processing the slabs having a width greater than the roll width threshold.
  • FIG 1 shows the plant according to the invention
  • the twin casting machine 1 1 shows a plant 100 for producing hot strip 260.
  • the main components of the plant 100 are a twin casting machine 110, a connected rolling train 210-250, a holding furnace 200, a special treatment device 400, a first bearing 300 and a heating furnace 310.
  • the Twin Caster 1 10 is located near rolling line 210-250 and produces casting strands 120 in the twin casting process or in the single strand process.
  • the casting strands 120 are separated from a separating device 125 into slabs 130 and then fed by a switch device 140, which is controlled by a first control device 150, via the holding furnace 200 to the rolling train 210-250 or the special treatment device 400.
  • the twin casting machine 1 1 0 is preferably designed as a sheet system, for example with a casting radius of 4.5 to 7.0 m.
  • the slabs 130 subsequently separated from the separating device 125 can be set by the transport system with a corresponding setting predetermined by the first control device 150 the diverter device 140 via a first feed device 1 70, for example, a cross-conveyor, are fed through the holding furnace 200 directly to the rolling train 210-250.
  • the slabs 130 are descaled by a descaling device 210 and fed to a reversing mill 230 and m at least one conveyor 240 by a squeezing device 220, which is optional, and subsequently fed to a finishing mill 250 for rolling Hot strip 260 introduced.
  • the subsequent winding of the hot strip 260 from a coiler to coils 270 is shown here only schematically at the end of the rolling train 210-250.
  • the twin casting machine 1 10 can pour in the single-strand process a maximum width of the casting strands 120 of preferably 3600 mm. This maximum Width of the produced casting strands 120 and the slabs 130 subsequently severed by the severing means 125 is above the maximum width of the hot strips 260 to be produced. Because the rolling train 210-250 can only process slabs 130 having a width smaller than a roll width threshold, for example 2200 mm, slabs 130 having a width greater than the roll width threshold are diverted from the switch 140 to the special treatment device 400.
  • cold slabs 1 30 can be removed from the first bearing 300 by means of a second feeder 1 80 via a heating furnace 310, which is designed for example as Hubbalkenofen or puncture furnace, are fed into the rolling mill 21 0-250.
  • the slabs 130 from the first bearing 300 have a width that is less than or equal to the roll width threshold.
  • the heating furnace 310 is designed for slabs 130 of these widths and preferably heats the slabs 130 to a temperature for hot rolling of 1100 ° C to 1250 ° C. After being heated to rolling temperature, the slabs 130 are processed from the rolling train 210-250 to hot strip 260.
  • the twin casting machine 1100 preferably operates in the so-called "plate production” mode, that is, the twin casting machine 1100 casts pouring strands 120 having a width greater than that Walzumblen threshold of the rolling mill, but preferably less than or equal to 3600 mm, which - separated from slabs 130 - from the switch device 140, controlled by the first control device 150 to the special treatment direction 400 brought / branched off.
  • the "slab production" slabs 130 can not be rolled from the connected mill 210-250 due to their too large width.
  • the flexibility of the entire system 100 is increased and the productivity of the rolling mill 21 0-250 remains fully guaranteed.
  • the twin-casting machine 110 operates in the "slab production" mode, production amounts of 5.0 million tons per year can be represented - len.
  • twin casting machine 1 1 0 operates in the twin casting process, two parallel casting strands 120 each having a width of preferably 1750 mm and, for example, a thickness of 100 mm, corresponding to a web width of the twin casting machine of 1 00 mm, cast. Any uneven temperatures of the slab narrow sides / edges are homogenized by the holding furnace 200, which is preferably designed as Hubbalkenofen before use in the rolling mill 21 0-250.
  • the slabs 130 from the twin-casting process have a slab width that is smaller than the roll width threshold. Due to the spatially close arrangement of twin casting machine 1 10 and holding furnace 200, the slabs 130 of the rolling mill 21 0-250 are supplied without cooling to room temperature and the temperature losses are reduced to a technological minimum.
  • the twin casting machine 10 produces casting strands 120 with a thickness of preferably 100-170 mm.
  • the generated slab thickness is selected so that the roughing to the required intermediate thickness for the finish rolling with m.len number of stitches in the Reversierwalzgerüst 230 is possible. Particularly preferred is a slab thickness of 150 mm is provided.
  • the intermediate belt is moved in the conveyor 240, which is preferably designed as a roller table, actively heated roller table, roller hearth furnace or tunnel kiln.
  • switch device 50 first control device for switch device 170 first feeder, preferably cross-conveyor

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)

Abstract

The invention relates to a device and method for producing hot-rolled strips (260), wherein the device comprises the following features: a casting machine (110) for producing at least one cast strand (120), a separating unit (125) for severing slabs (130) from the cast strand (120), a rolling train for producing the hot-rolled strip from the slabs having a width smaller than a rolling width threshold value, and a transport system comprising a distributing guide (140) for selectively transporting the slabs out of the casting machine either into the rolling train or to a special treatment unit (400). In order to allow the plant to operate more effectively, according to the invention the casting machine is designed as a twin casting machine for producing the at least one cast strand having a width that is smaller or larger than the rolling width threshold value, and a control unit is provided for the distributing guide in order to branch off the slabs having a width smaller than the rolling width threshold value into the rolling train and in order to branch off the slabs having a width larger than the rolling width threshold value for the special treatment unit.

Description

Anlage und Verfahren zum Erzeugen von Warmband  Plant and method for producing hot strip
Die Erfindung betrifft eine Anlage und ein Verfahren zum Erzeugen von Warm- band, wobei eine Gießmaschine zum Erzeugen von m indestens einem Gießstrang, eine Trenneinrichtung zum Abtrennen von Brammen von dem Gießstrang, ein Transportsystem m it einer Weicheneinrichtung zum wahlweisen Transportieren der Brammen aus der Gießmaschine entweder in eine Walzstraße oder zu einer Sonderbehandlungseinrichtung verwendet werden. Die Walzstraße dient zum Erzeugen des Warmbandes aus den Brammen mit einer Breite kleiner als ein Walzbreiten-Schwellenwert. The invention relates to a system and a method for producing hot strip, wherein a casting machine for generating at least one casting strand, a separating device for separating slabs from the casting strand, a transport system with a switching device for selectively transporting the slabs from the casting machine be used either in a rolling mill or to a special treatment facility. The rolling train is used to produce the hot strip from the slabs having a width smaller than a roll width threshold.
Ein Produktionsplanungsverfahren zur Erhöhung der Durchsatzmenge bei der Produktion von Warmband ist aus der EP 1 363 750 bekannt. Bei diesem Ver- fahren wird die Walzstraße zum einen von einer Zwei-Strang-Gießanlage, die Dünnbrammen erzeugt, und zum anderen m it Brammen aus einem Lager bedient. A production planning method for increasing the throughput in hot strip production is known from EP 1 363 750. In this process, the rolling mill is served, on the one hand, by a two-strand caster, which produces thin slabs, and, on the other, by slabs from a warehouse.
Die Brammen für das Lager werden von einer Zwillingsgießmaschine erzeugt, die Dickbrammen gießt. Diese Dickbrammen werden dann über eine Bram- menzuführungseinrichtung über einen Wiedererwärmungsofen einem nachgeordneten Vorgerüst zugeführt und zu Vorbändern gewalzt, die in Form von Coils der Walzstraße zugeführt werden. Durch die Coil-Zuführungseinrichtung werden zwar ungeplante Stillstandszeiten der Gießanlage überbrückt, allerdings wird ein enormer Energieaufwand nötig, um die Coils wieder auf Walztemperatur zu erhitzen. The slabs for the warehouse are produced by a twin caster, which pours thick slabs. These thick slabs are then fed to a downstream roughing unit via a reheating furnace via a slab feed device and rolled into slivers, which are fed to the rolling train in the form of coils. Although the coil feeder bypasses unplanned downtime of the caster, however A huge amount of energy is needed to heat the coils back to rolling temperature.
Eine Gießwalzanlage, die ebenfalls Stranggießen und Walzen von Brammen vereint, wird in der DE 693 16 703 beschrieben. Insbesondere wird in der Druckschrift ein Verfahren zur Herstellung von gewickeltem Band, Blech in gewickelter Form oder diskreten Blechplatten beschrieben. Die Gießanlage wird im Ein-Strang-Gießverfahren betrieben und produziert Brammen verschiedener Breite, die entweder direkt in einen Ofen gegeben werden, um dann der Walzstraße zugeführt zu werden oder in einem Brammensammel- bzw. - Speicherbereich gelagert werden. Das Unterscheidungskriterium, ob die Brammen aus dem Lager oder direkt von der Gießmaschine der Walzstraße zugeführt werden, richtet sich nach der Produktionsleistung der Gießmaschine. Die Brammen aus dem Lager werden während Produktionspausen der Gießmaschine zur Auslastung der angeschlossenen Walzstraße verwendet. A cast rolling mill, which also combines continuous casting and rolling of slabs, is described in DE 693 16 703. In particular, the document describes a method for producing wound strip, sheet in wound form or discrete sheet metal plates. The casting plant is operated by single-strand casting and produces slabs of various widths, which are either placed directly in an oven to be fed to the rolling line or stored in a slab storage area. The distinguishing criterion of whether the slabs are fed from the warehouse or directly from the casting machine to the rolling line depends on the production capacity of the casting machine. The slabs from the warehouse are used during production breaks of the casting machine for utilization of the connected rolling mill.
Nachteilig bei den bekannten Gießwalzanlagen ist jedoch, dass die maximale Breite der Gießstränge auf die Breite der Walzstraßen abgestimmt ist, die Gießwalzanlage unflexibel in der Produktion ist und somit keine Kapazitätssteigerung erreicht werden kann. Ein weiterer Nachteil ist, dass durch eine Mehr- zahl von Öfen in der Anlage zur Wiedererwärmung der kalten Brammen oder Coils eine energiesparende Fahrweise kaum möglich ist. A disadvantage of the known casting rolling, however, is that the maximum width of the casting strands is matched to the width of the rolling mills, the casting mill is inflexible in production and thus no increase in capacity can be achieved. Another disadvantage is that an energy-saving driving style is hardly possible by a plurality of ovens in the system for reheating the cold slabs or coils.
Aufgabe der Erfindung ist es, eine bekannte Anlage und ein bekanntes Verfahren zum Erzeugen von Warmband weiterzubilden, um eine Steigerung der Pro- duktionsleistung sowie eine Erhöhung der Flexibilität schon bei der Herstellung des Gießstranges zu erzielen und eine energiesparende Konfiguration der Anlage anzubieten, die somit kostengünstig produziert. The object of the invention is to develop a known system and a known method for producing hot strip, to increase the production capacity and increase the flexibility already in the production to achieve the cast strand and offer an energy-saving configuration of the plant, which thus produces cost-effectively.
Diese Aufgabe wird gelöst durch den Gegenstand des Anspruchs 1 . Dieser Gegenstand ist dadurch gekennzeichnet, dass die Gießmaschine als eine Zwil- lingsgießmaschine ausgebildet ist zum Erzeugen des mindestens einen Gießstrangs m it e i ner B re ite , d ie kl e i ne r oder größer als der Walzbreiten- Schwellenwert ist und dass eine erste Steuereinrichtung für die Weicheneinrichtung vorgesehen ist zum Abzweigen der Brammen mit einer Breite kleiner als der Walzbreiten-Schwellenwert in die Walzstraße und zum Abzweigen der Brammen mit einer Breite größer als der Walzbreiten-Schwellenwert für die Sonderbehandlungseinrichtung. This object is achieved by the subject matter of claim 1. This article is characterized in that the casting machine is designed as a twin casting machine for producing the at least one casting strand with a bend that is smaller or greater than the rolling width threshold value and that a first control device for the switch device is provided for branching the slabs having a width smaller than the roll width threshold into the rolling train and for branching the slabs having a width greater than the roll width threshold for the special treatment device.
Der Beschreibung der Erfindung liegen folgende Begrifflichkeiten zugrunde: The description of the invention is based on the following terms:
Walzbreiten-Schwellenwert: Roll width threshold:
Die Breite der zu walzenden Brammen ist durch die Breite der Walzstraße, insbesondere die Breite der Fertigwalzstraße, vorgegeben bzw. begrenzt. Der Walzbreiten-Schwellenwert entspricht der maximalen Breite des Warmbands, das in der Fertigwalzstraße verarbeitet werden kann. The width of the slabs to be rolled is predetermined or limited by the width of the rolling train, in particular the width of the finishing train. The roll width threshold corresponds to the maximum width of the hot strip that can be processed in the finishing train.
Sonderbehandlungseinrichtung: Special treatment facility:
Die Brammen, deren Breite größer dem Walzbreiten-Schwellenwert sind, werden nicht in die angeschlossene Walzstraße überführt, sondern in eine Sonder- behandlungseinrichtung. Diese Sonderbehandlungseinrichtung kann ein externes Brammenlager, ein besonderes Walzwerk für Brammen dieser Breite o.ä. sein. The slabs, whose width is greater than the rolling width threshold, are not transferred to the connected rolling train, but are instead converted into a special rolling mill. treatment facility. This special treatment device can be an external slab stock, a special rolling mill for slabs of this width o.ä. be.
Dass gemäß Anspruch 1 die Gießmaschine als eine Zwillingsgießmaschine ausgebildet ist, bietet den Vorteil, dass nicht nur im Einstrangverfahren produziert werden kann, sondern auch im Zweistrangverfahren, dem Zwillingsgussverfahren. Diese Anwendung der Zwillings-Gießmaschine bietet den Vorteil, dass eine erhöhte Flexibilität in der Brammenproduktion, sowohl in der Breite als auch in der Geschwindigkeit erreicht wird. Die anschließende Weichenein- richtung, die zum Abzweigen der Brammen m it einer Breite kleiner als der Walzbreiten-Schwellenwert in die Linie der Walzstraße vorgesehen ist, bietet den Vorteil, dass die Brammen ohne nennenswerte Temperaturverluste direkt der Walzstraße zugeführt werden können oder dass die Brammen m it einer Breite größer als der Walzbreiten-Schwellenwert für die Sonderbehandlungsein- richtung abgezweigt werden können. Damit ergibt sich eine vergrößerte Flexibilität bei der Brammenproduktion. Die Produktivität der Walzstraße wird weiterhin voll gewährleistet, da die Walzstraße aus einem ersten Lager mit Brammen bedient wird, wenn die Belieferung mit Brammen aus der Zwillingsgießmaschine nicht ausreicht. That according to claim 1, the casting machine is designed as a twin-casting machine, offers the advantage that not only in the single-strand process can be produced, but also in the two-strand process, the twin casting process. This application of the twin-casting machine offers the advantage of achieving increased flexibility in slab production, both in width and in speed. The subsequent Weichenein- direction, which is provided for branching the slabs m with a width smaller than the roll width threshold in the line of the rolling mill, offers the advantage that the slabs can be fed without significant temperature losses directly to the rolling train or that the slabs m It can be diverted to a width greater than the roll width threshold for the special treatment device. This results in an increased flexibility in slab production. The productivity of the rolling mill is still fully guaranteed since the rolling mill is served from a first stock with slabs if the supply of slabs from the twin-casting machine is insufficient.
Dadurch, dass gemäß einem ersten Ausführungsbeispiel die Zwillingsgießmaschine zu der Linie der Walzstraße versetzt angeordnet ist und ein Transportsystem mit einer ersten Zuführeinrichtung, zum Beispiel einer Querverfahreinrichtung vorgesehen ist, können auf diesem Wege alle erzeugten Brammen mit einer Breite kleiner dem Walzbreiten-Schwellenwert direkt der Walzstraße zugeführt werden und alle Brammen mit einer Breite größer dem Walzbreiten- Schwellenwert weiter in die Sonderbehandlungseinrichtung verfahren werden. Durch die erste Zuführeinrichtung des Transportsystems gelangen die Brammen aus der Zwillingsgießmaschine umgehend in einen Warmhalteofen und müssen darin lediglich energiesparend auf Walztemperatur erwärmt werden. Characterized in that according to a first embodiment, the twin casting machine is arranged offset to the line of the rolling train and a transport system with a first feeder, for example, a Querverfahreinrichtung is provided, in this way, all slabs produced with a width smaller than the roll width threshold directly to the rolling train be fed and all slabs with a width greater than the Walzbreiten- Threshold further procedure in the special treatment facility. Due to the first feeding device of the transport system, the slabs from the twin casting machine immediately enter a holding furnace and only have to be heated to rolling temperature in an energy-saving manner.
Vorteilhafterweise ist ein Warmhalteofen zum Warmhalten der Brammen, die eine Breite kleiner als der Walzbreiten-Schwellenwert aufweisen, derart ausgelegt, dass die Brammen mit wenig Energieaufwand auf Walztemperatur erwärmt werden. Die Auslegung des Ofens bezieht sich nicht nur auf die Erwärmungsleistung, sondern auch auf eine kurze bauliche Ausführung des Warmhalte- ofens. Advantageously, a holding furnace for holding the slabs having a width smaller than the rolling width threshold is designed such that the slabs are heated to rolling temperature with little energy. The design of the stove not only refers to the heating performance, but also to a short structural design of the holding furnace.
Vorteilhafterweise weist die Walzstraße zumindest einzelne der folgenden Komponenten auf, vorzugsweise in Durchlaufrichtung der Brammen gesehen in der genannten Reihenfolge: Advantageously, the rolling train at least one of the following components, preferably in the direction of passage of the slabs seen in the order mentioned:
- eine Entzunderungseinrichtung a descaling device
- eine Stauchungseinrichtung - A compression device
- ein Reversierwalzgerüst - A reversing roll stand
- eine Fördereinrichtung vor und / oder hinter dem Reversierwalzgerüst; - eine Fertigwalzstraße Durch eine ortsnahe Anordnung der Walzstraße an die Gießmaschine werden Transportwege vermieden und somit ein Auskühlen der Brammen verhindert, was zu Energieeinsparungen führt. - A conveyor before and / or behind the Reversierwalzgerüst; - a finishing train By a local arrangement of the rolling train to the casting machine transport routes are avoided and thus prevents cooling of the slabs, resulting in energy savings.
Vorteilhafterweise weist das Transportsystem weiterhin eine zweite Zuführein- richtung fü r B ram m en m it e i ner B re ite kle i ner a ls der Wa lzbre iten- Schwellenwert aus einem ersten Lager in die Walzstraße auf, damit bei einer Produktion von Brammen mit einer Breite größer des Walzbreiten- Schwellenwerts durch die Zwillingsgießmaschine die nachgeordnete Walzstraße weiterhin voll ausgelastet bleibt. Dies gilt natürlich auch für Produktionspau- sen der Zwillingsgießmaschine. Advantageously, the transport system further comprises a second feeding device for bread with a breadcrimber as the threshold value from a first storage in the rolling train, so that in a production of slabs with a width greater than the roll width threshold by the twin casting machine, the downstream rolling mill remains fully loaded. Of course, this also applies to production pauses of the twin casting machine.
Vorteilhafterweise ist die zweite Zuführeinrichtung mit einer zweiten Steuereinrichtung ausgebildet, welche ermöglicht dass die Zufuhr der Brammen aus dem ersten Lager in die Walzstraße dann ermöglicht wird, wenn die Walzstraße al- leine mit Brammen aus der Zwillingsgießmaschine nicht ausgelastet ist. Das gilt beispielsweise dann, wenn die Zwillingsgießmaschine Brammen produziert, die breiter sind als der Walzbreiten-Schwellenwert. Dazu ist es von Vorteil, dass die Walzstraße von der Zwillingsgießmaschine entkoppelt produzieren kann. Advantageously, the second feeding device is formed with a second control device, which makes it possible that the feeding of the slabs from the first bearing into the rolling train is made possible when the rolling train alone is not loaded with slabs from the twin casting machine. This is true, for example, when the twin caster produces slabs that are wider than the roll width threshold. For this it is advantageous that the rolling mill can produce decoupled from the twin casting machine.
Vorteilhafterweise produziert die Gießmaschine für eine Sonderbehandlungseinrichtung, die entweder als ein zweites Lager ausgebildet ist oder als eine besondere Bearbeitungsstraße, inklusive eines Walzwerks, zum Bearbeiten der Brammen mit einer Breite größer als der Walzbreiten-Schwellenwert. Damit ergeben sich eine große Flexibilität bei der Brammenproduktion und eine bessere Auslastung der Zwillingsgießmaschine. Die oben genannte Aufgabe wird weiterhin durch das in dem unabhängigen Verfahrensanspruch 8 beanspruchte Verfahren gelöst. Advantageously, the casting machine for a special treatment device, which is designed either as a second bearing or as a special processing line, including a rolling mill, for processing the slabs having a width greater than the roll width threshold. This results in a great flexibility in the slab production and a better utilization of the twin casting machine. The above object is further achieved by the method claimed in the independent method claim 8.
Die Vorteile dieser verfahrensmäßigen Lösung entsprechen den oben mit Be- zug auf die Vorrichtung genannten Vorteilen. Weitere vorteilhafte Ausgestaltungen des Verfahrens und der Vorrichtung der Erfindung sind in den Unteransprüchen angegeben. The advantages of this procedural solution correspond to the advantages mentioned above with respect to the device. Further advantageous embodiments of the method and the apparatus of the invention are specified in the subclaims.
Der Beschreibung ist insgesamt eine Figur beigefügt, wobei The description is a total of a figure attached, wherein
Figur 1 die erfindungsgemäße Anlage Figure 1 shows the plant according to the invention
zeigt. shows.
Die erfindungsgemäße Anlage und das erfindungsgemäße Verfahren werden nachfolgend unter Bezugnahme auf die Figur detailliert beschrieben. The system according to the invention and the method according to the invention are described in detail below with reference to the figure.
Figur 1 zeigt eine Anlage 100 zum Erzeugen von Warmband 260. Die Hauptkomponenten der Anlage 100 sind eine Zwillingsgießmaschine 1 1 0, eine ange- schlossene Walzstraße 210-250, ein Warmhalteofen 200, eine Sonderbehandlungseinrichtung 400, ein erstes Lager 300 und einen Erwärmungsofen 310. Die Zwillingsgießmaschine 1 10 ist in der Nähe der Walzstraße 210-250 angeordnet und erzeugt Gießstränge 120 im Zwillingsgießverfahren oder im Einstrangverfahren. Die Gießstränge 120 werden von einer Trenneinrichtung 125 zu Brammen 130 abgetrennt und anschließend von einer Weicheneinrichtung 140, die von einer ersten Steuereinrichtung 150 angesteuert wird, über den Warmhalte- ofen 200 der Walzstraße 210-250 oder der Sonderbehandlungseinrichtung 400 zugeführt. Die Zwillingsgießmaschine 1 1 0 ist vorzugsweise als Bogenanlage, beispielsweise mit einem Gießradius von 4,5 bis 7,0 m, ausgeführt. 1 shows a plant 100 for producing hot strip 260. The main components of the plant 100 are a twin casting machine 110, a connected rolling train 210-250, a holding furnace 200, a special treatment device 400, a first bearing 300 and a heating furnace 310. The Twin Caster 1 10 is located near rolling line 210-250 and produces casting strands 120 in the twin casting process or in the single strand process. The casting strands 120 are separated from a separating device 125 into slabs 130 and then fed by a switch device 140, which is controlled by a first control device 150, via the holding furnace 200 to the rolling train 210-250 or the special treatment device 400. The twin casting machine 1 1 0 is preferably designed as a sheet system, for example with a casting radius of 4.5 to 7.0 m.
Erzeugt die Zwillingsgießmaschine 1 10 Gießstränge 120 im Einstrang- oder im Zwillingsgießverfahren, die eine Breite kleiner der Breite des Walzbreiten- Schwellenwertes aufweisen, so können die anschließend von der Trenneinrichtung 125 abgetrennten Brammen 130 von dem Transportsystem mit einer entsprechenden von der ersten Steuereinrichtung 150 vorgegebenen Einstellung der Weicheneinrichtung 140 über eine erste Zuführeinrichtung 1 70, zum Bei- spiel eine Quer-Verfahreinrichtung, durch den Warmhalteofen 200 direkt der Walzstraße 210-250 zugeführt werden. Nach dem Erwärmen auf Walztemperatur im Warmhalteofen 200 werden die Brammen 130 von einer Entzunderung- seinrichtung 210 entzundert und durch eine Stauchungseinrichtung 220, die optional ist, einem Reversierwalzgerüst 230 und m indestens einer Förderein- richtung 240 zugeführt und nachfolgend in eine Fertigwalzstraße 250 zum Walzen zu Warmband 260 eingeführt. Das anschließende Aufwickeln des Warmbandes 260 von einer Aufhaspeleinrichtung zu Coils 270 ist hier nur schematisch am Ende der Walzstraße 210-250 dargestellt. If the twin casting machine 1 produces 10 casting strands 120 in the single or twin casting process having a width smaller than the width of the rolling width threshold value, the slabs 130 subsequently separated from the separating device 125 can be set by the transport system with a corresponding setting predetermined by the first control device 150 the diverter device 140 via a first feed device 1 70, for example, a cross-conveyor, are fed through the holding furnace 200 directly to the rolling train 210-250. After being heated to rolling temperature in the holding furnace 200, the slabs 130 are descaled by a descaling device 210 and fed to a reversing mill 230 and m at least one conveyor 240 by a squeezing device 220, which is optional, and subsequently fed to a finishing mill 250 for rolling Hot strip 260 introduced. The subsequent winding of the hot strip 260 from a coiler to coils 270 is shown here only schematically at the end of the rolling train 210-250.
Die Zwillingsgießmaschine 1 10 kann im Einstrangverfahren eine maximale Breite der Gießstränge 120 von vorzugsweise 3600 mm gießen. Diese maximale Breite der erzeugten Gießstränge 120 und der nachfolgend von der Trenneinrichtung 125 abgetrennten Brammen 130 liegt oberhalb der maximalen Breite der zu erzeugenden Warmbänder 260. Da die Walzstraße 210-250 nur Brammen 130 mit einer Breite kleiner als ein Walzbreiten-Schwellenwert verarbeiten kann, der beispielsweise bei 2200 mm liegt, werden Brammen 130 mit einer Breite größer als der Walzbreiten-Schwellenwert von der Weicheneinrichtung 140 zu der Sonderbehandlungseinrichtung 400 abgezweigt. The twin casting machine 1 10 can pour in the single-strand process a maximum width of the casting strands 120 of preferably 3600 mm. This maximum Width of the produced casting strands 120 and the slabs 130 subsequently severed by the severing means 125 is above the maximum width of the hot strips 260 to be produced. Because the rolling train 210-250 can only process slabs 130 having a width smaller than a roll width threshold, for example 2200 mm, slabs 130 having a width greater than the roll width threshold are diverted from the switch 140 to the special treatment device 400.
Insbesondere während die Zwillingsgießmaschine 1 1 0 im Einstrangverfahren Brammen 1 30 m it einer Breite, die größer als der Walzbreiten-Schwellenwert ist, erzeugt, können kalte Brammen 1 30 aus dem ersten Lager 300 m it H ilfe einer zweiten Zuführeinrichtung 1 80 über einen Erwärmungsofen 310, der beispielsweise als Hubbalkenofen oder Durchstoß-Ofen ausgebildet ist, in die Walzstraße 21 0-250 eingefördert werden. Die Brammen 130 aus dem ersten Lager 300 haben eine Breite, die kleiner gleich dem Walzbreiten-Schwellenwert ist. Der Erwärmungsofen 310 ist für Brammen 130 dieser Breiten ausgelegt und erhitzt die Brammen 130 vorzugsweise auf eine Temperatur zum Warmwalzen von 1 1 00°C bis 1250°C. Nach dem Erhitzen auf Walztemperatur werden die Brammen 130 von der Walzstraße 210-250 zu Warmband 260 verarbeitet. In particular, while the twin caster 1 1 0 is producing slabs 1 30 m in width with a width greater than the roll width threshold, cold slabs 1 30 can be removed from the first bearing 300 by means of a second feeder 1 80 via a heating furnace 310, which is designed for example as Hubbalkenofen or puncture furnace, are fed into the rolling mill 21 0-250. The slabs 130 from the first bearing 300 have a width that is less than or equal to the roll width threshold. The heating furnace 310 is designed for slabs 130 of these widths and preferably heats the slabs 130 to a temperature for hot rolling of 1100 ° C to 1250 ° C. After being heated to rolling temperature, the slabs 130 are processed from the rolling train 210-250 to hot strip 260.
Während die Walzstraße von den Brammen 1 30 aus dem ersten Lager 300 Warmband 260 erzeugt, arbeitet die Zwillingsgießmaschine 1 1 0 vorzugsweise in der so genannten Betriebsart„Plattenproduktion". Das heißt, die Zwillingsgießmaschine 1 1 0 gießt Gießstränge 120 mit einer Breite größer als der Walzbreiten-Schwellenwert der Walzstraße, aber vorzugsweise kleiner gleich 3600 mm, die - abgetrennt zu Brammen 130 - von der Weicheneinrichtung 140, gesteuert durch die erste Steuereinrichtung 150 zu der Sonderbehandlungsein- richtung 400 gebracht/abgezweigt werden. Die Brammen 130 aus der„Plattenproduktion" können aufgrund ihrer zu großen Breite von der angeschlossenen Walzstraße 210 - 250 nicht gewalzt verarbeitet werden. While the rolling train from the first bearing 300 produces hot strip 260 from the slabs 1 30, the twin casting machine 1100 preferably operates in the so-called "plate production" mode, that is, the twin casting machine 1100 casts pouring strands 120 having a width greater than that Walzbreiten threshold of the rolling mill, but preferably less than or equal to 3600 mm, which - separated from slabs 130 - from the switch device 140, controlled by the first control device 150 to the special treatment direction 400 brought / branched off. The "slab production" slabs 130 can not be rolled from the connected mill 210-250 due to their too large width.
Bei dem beanspruchten Anlagenkonzept ist die Flexibilität der gesamten Anlage 100 erhöht und die Produktivität der Walzstraße 21 0-250 bleibt voll gewährleistet. Durch die Zuführung der Brammen 130 aus dem ersten Lager 300 und dem anschließenden Weiterverarbeiten dieser Bramme in der Walzstraße 210-250, während die Zwillingsgießmaschine 1 10 in der Betriebsart„Plattenproduktion" arbeitet, lassen sich Produktionsmengen von 5,0 Mio. Tonnen pro Jahr darstel- len. In the claimed system concept, the flexibility of the entire system 100 is increased and the productivity of the rolling mill 21 0-250 remains fully guaranteed. By feeding the slabs 130 from the first bearing 300 and then further processing this slab in the rolling train 210-250 while the twin-casting machine 110 operates in the "slab production" mode, production amounts of 5.0 million tons per year can be represented - len.
Arbeitet die Zwillingsgießmaschine 1 1 0 hingegen im Zwillingsgießverfahren, werden zwei parallele Gießstränge 120 mit jeweils einer Breite von vorzugsweise 1750 mm und beispielsweise einer Dicke von 100 mm, entsprechend einer Stegbreite bei der Zwillingsgießmaschine von 1 00 mm , gegossen. Eventuell ungleichen Temperaturen der Brammenschmalseiten / Kanten werden durch den Warmhalteofen 200, der vorzugsweise als Hubbalkenofen ausgebildet ist, vor dem Einsatz in die Walzstraße 21 0-250 homogenisiert. Die Brammen 130 aus dem Zwillingsgießverfahren haben eine Brammenbreite, die kleiner als der Walzbreiten-Schwellenwert ist. Durch die räumlich nahe Anordnung von Zwillingsgießmaschine 1 10 und Warmhalteofen 200 werden die Brammen 130 der Walzstraße 21 0-250 ohne Abkühlung auf Raumtemperatur zugeführt und die Temperaturverluste sind auf ein technologisches Minimum reduziert. Dies gilt auch für Brammen 130 aus dem Einstrangverfahren, die eine Breite kleiner dem Walzbreiten-Schwellenwert aufweisen und von der angeschlossenen Walzstraße zu Warmband 260 gewalzt werden. Die erfindungsgemäße Zwillingsgießmaschine 1 10 erzeugt Gießstränge 120 mit einer Dicke von vorzugsweise 100 - 170 mm. Die erzeugte Brammendicke wird so gewählt, dass das Vorwalzen an die benötigte Zwischendicke für das Fertigwalzen m it einer m inimalen Anzahl an Stichen im Reversierwalzgerüst 230 möglich ist. Besonders bevorzugt ist eine Brammen-Dicke von 150 mm vorgesehen. Zwischen den Vorwalz-Stichen wird das Zwischenband in der Fördereinrichtung 240, die vorzugsweise als Rollgang, aktiv beheizter Rollgang, Rollenherdofen oder Tunnelofen ausgebildet ist, gefahren. On the other hand, if the twin casting machine 1 1 0 operates in the twin casting process, two parallel casting strands 120 each having a width of preferably 1750 mm and, for example, a thickness of 100 mm, corresponding to a web width of the twin casting machine of 1 00 mm, cast. Any uneven temperatures of the slab narrow sides / edges are homogenized by the holding furnace 200, which is preferably designed as Hubbalkenofen before use in the rolling mill 21 0-250. The slabs 130 from the twin-casting process have a slab width that is smaller than the roll width threshold. Due to the spatially close arrangement of twin casting machine 1 10 and holding furnace 200, the slabs 130 of the rolling mill 21 0-250 are supplied without cooling to room temperature and the temperature losses are reduced to a technological minimum. This also applies to slabs 130 from the single-strand process, which have a width smaller than the roll width threshold and are rolled from the connected rolling train to hot strip 260. The twin casting machine 10 according to the invention produces casting strands 120 with a thickness of preferably 100-170 mm. The generated slab thickness is selected so that the roughing to the required intermediate thickness for the finish rolling with m inimalen number of stitches in the Reversierwalzgerüst 230 is possible. Particularly preferred is a slab thickness of 150 mm is provided. Between the roughing passes, the intermediate belt is moved in the conveyor 240, which is preferably designed as a roller table, actively heated roller table, roller hearth furnace or tunnel kiln.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
100 Anlage 100 plant
1 10 Zwillingsgießmaschine 120 Gießstrang  1 10 twin caster 120 cast strand
125 Trenneinrichtung  125 separating device
130 Bramme 130 slabs
140 Weicheneinrichtung 50 erste Steuereinrichtung für Weicheneinrichtung 170 erste Zuführeinrichtung, vorzugsweise Quer-Verfahreinrichtung  140 switch device 50 first control device for switch device 170 first feeder, preferably cross-conveyor
180 zweite Zufuhreinrichtung 180 second feeder
185 zweite Steuereinrichtung 185 second control device
200 Warmhalteofen 200 holding furnace
210 Entzunderungseinrichtung 220 Stauchungseinrichtung  210 descaling device 220 compression device
230 Reversierwalzgerüst 230 Reversing rolling stand
240 Fördereinrichtung 240 conveyor
250 Fertigwalzstraße 250 finish rolling mill
260 Warmband 270 Coil erstes Lager 260 hot strip 270 coil first camp
Erwärmungsofen heating furnace
Sonderbehandlungseinrichtu Sonderbehandlungseinrichtu

Claims

Patentansprüche: claims:
Anlage (100) zum Erzeugen von Warmband (260), aufweisend: An apparatus (100) for producing hot strip (260), comprising:
eine Gießmaschine zum Erzeugen von mindestens einem Gießstrang (120);  a casting machine for producing at least one casting strand (120);
eine Trenneinrichtung (125) zum Abtrennen von Brammen (130) von dem Gießstrang (120);  a separator (125) for separating slabs (130) from the cast strand (120);
eine Walzstraße (210-250) zum Erzeugen des Warmbandes (260) aus den Brammen (130) mit einer Breite kleiner als ein Walzbreiten- Schwellenwert; und  a rolling train (210-250) for producing the hot strip (260) from the slabs (130) having a width less than a roll width threshold; and
ein Transportsystem mit einer von einer Steuereinrichtung gesteuerten Weicheneinrichtung (140) zum wahlweisen Transportieren der Brammen (130) aus der Gießmaschine entweder in die Walzstraße oder zu einer Sonderbehandlungseinrichtung (400);  a transport system having control means (140) controlled by a controller for selectively transporting the slabs (130) from the casting machine either into the rolling line or to a special treatment device (400);
dadurch gekennzeichnet, dass  characterized in that
die Gießmaschine als eine Zwillingsgießmaschine (1 10) ausgebildet ist zum Erzeugen des mindestens einen Gießstrangs (120) mit einer Breite, die kleiner oder größer als der Walzbreiten-Schwellenwert ist; und die Steuereinrichtung (150) für die Weicheneinrichtung vorgesehen ist zum Abzweigen der Brammen (130) mit einer Breite kleiner als der Walzbreiten-Schwellenwert in die Walzstraße und zum Abzweigen der Brammen (130) mit einer Breite größer als der Walzbreiten- Schwellenwert für die Sonderbehandlungseinrichtung (400).  the casting machine is configured as a twin casting machine (110) for producing the at least one casting strand (120) having a width that is smaller or larger than the roll width threshold value; and the switch means controller (150) is arranged to branch the slabs (130) having a width smaller than the roll width threshold into the rolling line and to branch the slabs (130) having a width greater than the rolling width threshold for the special treatment device (400).
2. Anlage (100) nach Anspruch 1 , dadurch gekennzeichnet, dass die Zwillingsgießmaschine (1 10) versetzt zu der Linie der Walzstraße angeordnet ist; und dass das Transportsystem eine erste Zuführeinrichtung (170), zum Beispiel eine Quer-Verfahreinrichtung, für die Brammen (130), die eine Breite kleiner als der Walzbreiten-Schwellenwert aufweisen, umfasst zum Zuführen der Brammen von der Zwillingsgießmaschine (1 10) in die Linie der Walzstraße. 2. Plant (100) according to claim 1, characterized in that the twin casting machine (1 10) is arranged offset to the line of the rolling train; and in that the transport system comprises a first feeder (170), for example a cross-conveyor, for the slabs (130) having a width smaller than the roll width threshold for feeding the slabs from the twin-casting machine (110) into the line the rolling mill.
3. Anlage (100) nach einem der vorangegangenen Ansprüche, gekennzeichnet durch einen Warmhalteofen (200) zum Warmhalten der Brammen (130), die eine Breite kleiner als der Walzbreiten-Schwellenwert aufweisen, während ihres Transportes von der Zwillingsgießmaschine (1 10) in die Linie der Walzstraße. 3. Plant (100) according to one of the preceding claims, characterized by a holding furnace (200) for keeping the slabs (130) having a width smaller than the roll width threshold, during their transport from the twin casting machine (1 10) in the Line of rolling mill.
4. Anlage (100) nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass die Walzstraße zumindest einzelne der folgenden Komponenten aufweist: 4. Plant (100) according to one of the preceding claims, characterized in that the rolling train has at least one of the following components:
- eine Entzunderungseinrichtung (210);  a descaling device (210);
- eine Stauchungseinrichtung (220);  - a compression device (220);
- ein Reversierwalzgerüst (230);  a reversing roll stand (230);
- einer Fördereinrichtung (240) vor und/oder hinter dem Reversierwalzgerüst (230);  - A conveyor (240) before and / or behind the Reversierwalzgerüst (230);
- eine Fertigwalzstraße (250) zum Walzen der Brammen (130) mit einer - A finishing mill (250) for rolling the slabs (130) with a
Breite, die kleiner als der Walzbreiten-Schwellenwert ist. Width that is less than the roll width threshold.
5. Anlage (100) nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass 5. Plant (100) according to one of the preceding claims, characterized in that
das Transportsystem eine zweite Zufuhreinrichtung (180) für Brammen the transport system has a second feed device (180) for slabs
(130) mit einer Breite kleiner als der Walzbreiten-Schwellenwert aus einem ersten Lager (300) in die Walzstraße, aufweist; und ein Erwärmungsofen (310) vorgesehen ist zum Erwärmen der Brammen(130) having a width smaller than the roll width threshold from a first bearing (300) in the rolling train; and a heating furnace (310) is provided for heating the slabs
(130) aus dem ersten Lager (300) auf eine geeignete Walztemperatur zum Walzen der Brammen (130) in der Walzstraße. (130) from the first bearing (300) to a suitable rolling temperature for rolling the slabs (130) in the rolling train.
6. Anlage (100) nach Anspruch 5, 6. Plant (100) according to claim 5,
dadurch gekennzeichnet, dass  characterized in that
eine zweite Steuereinrichtung (185) für die zweite Zufuhreinrichtung (180) vorgesehen und derart ausgebildet ist, die Zufuhr der Brammen (130) aus dem ersten Lager (300) in die Walzstraße zu ermöglichen, wenn die Walzstraße alleine mit Brammen (130) aus der Zwillingsgieß- maschine (1 10) nicht ausgelastet ist.  a second control means (185) for the second supply means (180) is provided and adapted to allow the supply of the slabs (130) from the first bearing (300) in the rolling train, when the rolling train alone with slabs (130) from the Twin casting machine (1 10) is underutilized.
Anlage (100) nach einem der vorangegangenen Ansprüche, Plant (100) according to one of the preceding claims,
dadurch gekennzeichnet, dass  characterized in that
die Sonderbehandlungseinrichtung (400) entweder als ein zweites Lager ausgebildet ist oder als eine besondere Bearbeitungsstraße, inklusive eines Walzwerks, ausgebildet ist, zum Bearbeiten der Brammen (130) mit einer Breite größer als der Walzbreiten-Schwellenwert.  the special treatment device (400) is either designed as a second bearing or is designed as a special processing line, including a rolling mill, for processing the slabs (130) having a width greater than the roll width threshold value.
8. Verfahren zum Betreiben einer Anlage (100) zum Erzeugen von Warm- band (260), aufweisend folgende Schritte: 8. A method for operating a plant (100) for producing hot strip (260), comprising the following steps:
- Erzeugen von mindestens einem Gießstrang (120);  - generating at least one casting strand (120);
- Abtrennen von Brammen (130) von dem Gießstrang (120);  - separating slabs (130) from the casting strand (120);
- Transportieren der Brammen (130) entweder zum Walzen in eine Walzstraße (210-250) oder zu einer Sonderbehandlung;  - Transporting the slabs (130) either for rolling in a rolling mill (210-250) or for a special treatment;
- Walzen der Brammen (130) mit einer Breite kleiner als ein Walzbreiten- - rolling the slabs (130) with a width smaller than a Walzbreiten-
Schwellenwert zu Warmband (260); und Threshold to Hot Strip (260); and
gekennzeichnet durch, Erzeugen des mindestens einen Gießstranges (120) auf einer Zwillingsgießmaschine (1 10) mit einer Breite größer oder kleiner als der Walzbreiten-Schwellenwert; marked by, Producing the at least one casting strand (120) on a twin casting machine (110) having a width greater or smaller than the rolling width threshold value;
Abzweigen der Brammen (130) mit einer Breite, die kleiner als der vorgegebene Walzbreiten-Schwellenwert ist zum Walzen in die Walzstraße; und  Branching the slabs (130) having a width which is smaller than the predetermined roll width threshold for rolling in the rolling train; and
Abzweigen der Brammen (130) mit einer Breite, die größer als der vorgegebene Walzbreiten-Schwellenwert ist zu der Sonderbehandlung.  Branching the slabs (130) having a width greater than the predetermined roll width threshold to the special treatment.
9. Verfahren nach Anspruch 8, 9. The method according to claim 8,
dadurch gekennzeichnet, dass  characterized in that
die Brammen (130), deren Breite kleiner als der Walzbreiten- Schwellenwert ist, vor der Zufuhr in die Walzstraße in einem Warmhalteofen (200) auf Walztemperatur erwärmt werden.  the slabs (130), whose width is smaller than the roll width threshold, are heated to rolling temperature before being fed into the mill train in a holding furnace (200).
10. Verfahren nach Anspruch 8, 10. The method according to claim 8,
dadurch gekennzeichnet, dass  characterized in that
während Produktionspausen der Zwillingsgießanlage (1 10) die Walzstraße aus einem ersten Lager (300) mit Brammen (130) mit einer Breite, die kleiner als der vorgegebene Walzbreiten-Schwellenwert ist, bedient wird.  during breaks in production of the twin caster (110), the rolling train is operated from a first bearing (300) with slabs (130) having a width which is less than the predetermined roll width threshold.
1 1 .Verfahren nach Anspruch 10, 1 1 .Method according to claim 10,
dadurch gekennzeichnet, dass  characterized in that
die Brammen (130) aus dem ersten Lager (300) vor dem Walzen auf Walztemperatur erhitzt werden.  the slabs (130) are heated from the first bearing (300) to rolling temperature before rolling.
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WO2012095250A1 (en) 2012-07-19
DE102011008434A1 (en) 2012-07-12

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