EP0647485B1 - Device for winding-up and winding-off alternately strip-shaped material - Google Patents

Device for winding-up and winding-off alternately strip-shaped material Download PDF

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Publication number
EP0647485B1
EP0647485B1 EP94250216A EP94250216A EP0647485B1 EP 0647485 B1 EP0647485 B1 EP 0647485B1 EP 94250216 A EP94250216 A EP 94250216A EP 94250216 A EP94250216 A EP 94250216A EP 0647485 B1 EP0647485 B1 EP 0647485B1
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EP
European Patent Office
Prior art keywords
furnaces
pair
furnace
winding
axis
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EP94250216A
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German (de)
French (fr)
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EP0647485A1 (en
Inventor
Hartmut Wolff
Herbert Quambusch
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Vodafone GmbH
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Mannesmann AG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/004—Heating the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/26—Special arrangements with regard to simultaneous or subsequent treatment of the material
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/68—Furnace coilers; Hot coilers
    • 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
    • B21B1/24—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 continuous or semi-continuous process
    • B21B1/26—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 continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B2015/0057—Coiling the rolled product

Definitions

  • the invention relates to a device for alternating winding and unwinding of strip-shaped material, in particular continuous cast thin slabs in pairs of furnaces, consisting of two superimposed ovens with horizontal winding axes, the ovens being pivotable from a reel-up in an unwinding position and the winding and unwinding taking place at different speeds.
  • a generic device is known for example from DE 40 13 582 C1. This device is integrated in a plant for the production of hot-rolled strip from continuously cast starting material and serves to compensate for the compensation of the speed differences from continuous casting and rolling in that the strip is temporarily stored. The winding takes place in furnaces in order to achieve uniform temperature conditions for the further processing of the strip unwound from the furnaces in the downstream finishing mill.
  • the furnaces are designed to be largely closed in order to keep the heat loss as low as possible during winding or unwinding of the strip.
  • the aim of the present invention is to provide a device for alternately winding and unwinding strip-shaped material, which allows simultaneous winding in one of the furnaces and unwinding in the other furnace in different directions.
  • each furnace of the pair of furnaces can be pivoted about its vertical axis independently of the other furnace.
  • the teaching of the invention thus turns away from that of the generic document, in which both furnaces can be pivoted independently of one another, but about horizontal axes corresponding to the winding axis.
  • the proposal of the invention makes it incredibly simple to wind a tape in one of the ovens and, when the other oven is pivoted about a vertical axis, to simultaneously carry out the unwinding process in a direction that does not correspond to the winding direction.
  • the pair of furnaces according to the invention can thus, for example, connect a thin slab caster and a downstream finishing train, which are arranged at an angle to one another.
  • both furnaces are pivoted about their common axis. If this axis, about which the furnaces can be pivoted, cuts the winding axis centrally, the correct positions always result in the pivoting end positions in order to couple the upstream or downstream system parts.
  • each oven can be pivoted through 90 degrees between the winding and unwinding position.
  • the invention with the furnaces makes it extremely simple to couple several cores of a casting installation with a single finishing train.
  • the pairs of furnaces of the individual casting strands are arranged one behind the other in the direction of the finishing train, so that the strip-like material which is unwound from the pair of furnaces further away from the finishing train can be passed through the passage between the furnaces of the pair of furnaces adjacent to the finishing train.
  • the transport roller tables are at least partially enclosed in a heat-insulating manner.
  • each furnace of a pair of furnaces is arranged in a support frame which is rotatably mounted on a turntable with the center axis corresponding to the pivot axis of the furnaces.
  • the solution according to the invention results in a further advantage that the stoves pivoted about the vertical axes can have a fixed chimney connection if this is rotatably connected to the stoves in a manner concentric to the pivot axis.
  • 1 and 2 denote two thin slab casting plants arranged in parallel, in which a preformed roughing strip is produced, which is fed to an oven pair 5, 6 after induction heating 3, 4 and homogenization, where the strip-like material is in each case in one of two stacked ovens 9-12 is coiled.
  • the previously wound band-shaped material is brought into its unwinding position after pivoting the furnace by 90 degrees and unwound in the direction of the finishing train 7.
  • the band-shaped material is transported from the pair of furnaces 5 via the enclosed roller conveyor 8 and through the pair of furnaces 6 and can thus reach the finishing train 7 unhindered.
  • the arrangement of the two furnace pairs 5 and 6 is shown roughly schematically in FIG.
  • the ovens of the oven pair 5 are designated 9 (upper oven) and 10 (lower oven), the ovens of the oven pair 6 with 11 and 12.
  • Each of the ovens 9 to 12 is arranged in a support frame 13 and on a circular turntable 14 around the vertical axis 15 pivotable.
  • the furnaces 9 and 10 or 11 and 12 are each shown pivoted by 90 degrees to one another, which corresponds to the winding and unwinding positions.
  • the separate arrangement of the furnaces 9 to 12 in support frames 13 enables the entire furnace unit to be moved out into a lateral maintenance position outside the street in addition to the rotation, so that repairs to one of the furnaces 9 or 10 or 11 or 12 of a pair of furnaces 5 or 6 are carried out can be used while the remaining furnace can still be used with reduced output to maintain operation.
  • the proposed device and the system equipped with it are characterized by particular simplicity in construction and also in control.
  • the space saving achievable by the invention is important not only for the size of the system, but also for the thermal conditions; because the shorter the system can be built, the lower the heat losses between the individual system components.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Metal Rolling (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zum abwechselnden Aufwickeln und Abwickeln von bandförmigem Gut, insbesondere stranggegossenen Dünnbrammen in Ofenpaaren, bestehend aus zwei übereinander angeordneten öfen mit horizontalen Wickelachsen, wobei die Öfen aus einer Aufwickelin eine Abwickelstellung verschwenkbar sind und das Aufwickeln und Abwickeln mit unterschiedlichen Geschwindigkeiten erfolgt.The invention relates to a device for alternating winding and unwinding of strip-shaped material, in particular continuous cast thin slabs in pairs of furnaces, consisting of two superimposed ovens with horizontal winding axes, the ovens being pivotable from a reel-up in an unwinding position and the winding and unwinding taking place at different speeds.

Eine gattungsgemäße Vorrichtung ist beispielsweise aus der DE 40 13 582 C1 bekannt. Diese Vorrichtung ist in einer Anlage zum Herstellen von warmgewalztem Band aus stranggegossenem Vormaterial integriert und dient dazu, den Ausgleich der Geschwindigkeitsunterschiede vom Stranggießen und Walzen dadurch zu kompensieren, daß das Band vorübergehend zwischengespeichert wird. Das Aufwickeln erfolgt dabei in Öfen um gleichmäßige Temperaturverhältnisse für die Weiterverarbeitung des aus den Öfen wieder abgewickelten Bandes im nachgeschalteten Fertigwalzwerk zu erreichen.A generic device is known for example from DE 40 13 582 C1. This device is integrated in a plant for the production of hot-rolled strip from continuously cast starting material and serves to compensate for the compensation of the speed differences from continuous casting and rolling in that the strip is temporarily stored. The winding takes place in furnaces in order to achieve uniform temperature conditions for the further processing of the strip unwound from the furnaces in the downstream finishing mill.

Eine andere Wickeleinrichtung mit übereinander angeordneten Öfen ist durch die EP 01 77 187 A1 bekannt geworden, bei der ähnlich wie bei der gattungsbildenden Schrift, jeweils abwechselnd einer der Öfen zum Aufwickeln des Bandes verwendet wird, während der jeweils andere Ofen durch Abwickeln des zuvor aufgewickelten Bandes das Walzwerk speist.Another winding device with stoves arranged one above the other has become known from EP 01 77 187 A1, in which, similarly to the generic script, one of the stoves is used alternately to wind up the strip, while the other is used by unwinding the strip previously wound up the rolling mill feeds.

Bei der gattungsbildenden Lösung ist vorgesehen, die Öfen weitestgehend geschlossen auszubilden, um den Wärmeverlust während des Auf- bzw. Abwickelns des Bandes so gering wie möglich zu halten.In the generic solution, the furnaces are designed to be largely closed in order to keep the heat loss as low as possible during winding or unwinding of the strip.

Beide der vorstehend beschriebenen Lösungen setzen voraus, daß die Zufuhr des aufzuwickelnden bandförmigen Gutes, ggfs. der stranggegossenen Dünnbramme, wie auch das Abführen des abgewickelten Gutes in gleicher Richtung erfolgen, d. h., das Walzwerk muß mit der vorgeschalteten Anlage, die eine Dünnbrammengießanlage oder auch eine Vorstraße einer Breitbandstraße sein kann, fluchten. Häufig besonders bei Umbau bestehender Anlagen, lassen es die Platzverhältnisse nicht zu, beide Anlagenteile vor und hinter dem Ofen in einer Flucht anzuordnen. In einem solchen Fall sind die bekannten Auf- und Abwickelvorrichtungen nicht verwendbar. Zwar ist es bekannt (DE-PS 972 603), Ofenpaare mit jeweils zwei übereinander angeordneten Öfen auf einer gemeinsamen Drehscheibe vorzusehen (Figuren 3 und 4), so daß theoretisch die Möglichkeit bestünde, den Abwickelvorgang in einer anderen Richtung vorzunehmen, als den Aufwickelvorgang, doch sind bei der vorbekannten Lösung die Ofenpaare auf der gemeinsamen Drehscheibe derart festgelegt, daß während des Aufwickelns ein Abwickeln in einer anderen Richtung nicht möglich ist.Both of the solutions described above presuppose that the supply of the strip-like material to be wound up, possibly the continuously cast thin slab, as well as the removal of the unwound material take place in the same direction, i.e. the rolling mill must be connected to the upstream system, which is a thin-slab casting system or also a Vorstraße can be a broadband street, in alignment. Often, especially when converting existing systems, the space conditions do not allow to arrange both parts of the system in front of and behind the furnace in alignment. In such a case, the known winding and unwinding devices cannot be used. It is known (DE-PS 972 603) to provide pairs of furnaces, each with two stoves arranged one above the other, on a common turntable (FIGS. 3 and 4), so that theoretically there would be the possibility of carrying out the unwinding process in a different direction than the winding process. however, in the previously known solution, the pairs of furnaces are fixed on the common turntable in such a way that unwinding in another direction is not possible during winding.

Ausgehend von den beschriebenen Lösungen des Standes der Technik ist es Ziel der vorliegenden Erfindung, eine Vorrichtung zum abwechselnden Auf-und Abwickeln von bandförmigem Gut zu schaffen, die ein gleichzeitiges Aufwickeln in einem der Öfen und Abwickeln in dem jeweils anderen Ofen in unterschiedlichen Richtungen gestattet.Starting from the described solutions of the prior art, the aim of the present invention is to provide a device for alternately winding and unwinding strip-shaped material, which allows simultaneous winding in one of the furnaces and unwinding in the other furnace in different directions.

Zur Lösung dieser Aufgabe wird erfindungsgemäß in Verbindung mit den Merkmalen im Oberbegriff des Patentanspruchs 1 vorgeschlagen, daß jeder Ofen des Ofenpaares unabhängig vom anderen Ofen um seine vertikale Achse schwenkbar ist.To achieve this object, it is proposed according to the invention in connection with the features in the preamble of claim 1 that each furnace of the pair of furnaces can be pivoted about its vertical axis independently of the other furnace.

Die Lehre der Erfindung kehrt sich somit von der der gattungsgemäßen Schrift ab, bei der beide Öfen zwar unabhängig voneinander, jedoch um horizontale, der Wickelachse entsprechende Achsen verschwenkbar sind. Durch den Vorschlag der Erfindung wird es in verblüffend einfacher Weise möglich, in einem der Öfen ein Band aufzuwickeln und bei um eine vertikale Achse verschwenktem anderen Ofen den Abwickelvorgang gleichzeitig in einer Richtung durchzuführen, die nicht der Aufwickelrichtung entspricht. Das Ofenpaar nach der Erfindung kann somit beispielsweise eine Dünnbrammengießanlage und eine nachgeschaltete Fertigstraße verbinden, die in einem Winkel zueinander angeordnet sind.The teaching of the invention thus turns away from that of the generic document, in which both furnaces can be pivoted independently of one another, but about horizontal axes corresponding to the winding axis. The proposal of the invention makes it amazingly simple to wind a tape in one of the ovens and, when the other oven is pivoted about a vertical axis, to simultaneously carry out the unwinding process in a direction that does not correspond to the winding direction. The pair of furnaces according to the invention can thus, for example, connect a thin slab caster and a downstream finishing train, which are arranged at an angle to one another.

Vorzugsweise ist vorgesehen, beide Öfen um ihre gemeinsame Achse schwenken zu lassen. Wenn diese Achse, um die die Öfen verschwenkbar sind, die Wickelachse zentrisch schneidet, ergeben sich in den Schwenkendstellungen stets die richtigen Positionen, um die vor- oder nachgeschalteten Anlagenteile anzukoppeln.It is preferably provided that both furnaces are pivoted about their common axis. If this axis, about which the furnaces can be pivoted, cuts the winding axis centrally, the correct positions always result in the pivoting end positions in order to couple the upstream or downstream system parts.

In einer weiteren Ausgestaltung der Erfindung ist vorgesehen, zwischen den Öfen einen horizontalen Durchlass für nicht zu wickelndes bandförmiges Gut zu belassen. Dadurch, daß die Öfen jeweils für sich abgeschlossene Baueinheiten darstellen, um - wie eingangs geschildert - die Wärmeverluste möglichst gering zu halten, ist es auch möglich, bandförmiges Gut zwischen den Öfen durchzutransportieren, wenn aus betimmten Gründen dieses bandförmige Gut nicht gewickelt werden soll.In a further embodiment of the invention, it is provided to leave a horizontal passage between the furnaces for non-winding band-shaped material. The fact that the furnaces each represent self-contained units, as - as described at the beginning - To keep the heat losses as low as possible, it is also possible to transport band-shaped material between the ovens if, for certain reasons, this band-shaped material is not to be wound.

In einer günstigen Ausgestaltung ist vorgesehen, daß jeder Ofen um 90 Grad zwischen Aufwickel- und Abwickelstellung verschwenkbar ist.In a favorable embodiment it is provided that each oven can be pivoted through 90 degrees between the winding and unwinding position.

Mit den vorstehend beschriebenen Merkmalen wird es in besonders vorteilhafter Weise durch die Erfindung möglich, hinter jedem Strang einer mehrsträngigen Dünnbrammengießanlage und vor einer gemeinsamen Fertigstraße jeweils ein Ofenpaar anzuordnen, zwischen denen und zwischen den Öfen des der Fertigstraße zugewandten Ofenpaares horizontale Transportrollgänge für das bandförmige Gut vorgesehen sind.With the features described above, it is possible in a particularly advantageous manner by the invention to arrange a pair of furnaces behind each strand of a multi-strand thin slab caster and in front of a common finishing train, between which and between the furnaces of the pair of furnaces facing the finishing train, horizontal transport roller tables are provided for the strip-like material are.

Durch die Erfindung mit den unabhängig um vertikale Achsen drehbaren Öfen wird es in äußerst einfacher Weise möglich, mehrere Adern einer Gießanlage mit einer einzigen Fertigstraße zu koppeln. Das setzt voraus, daß die Fertigstraße quer zu den zwei oder mehreren Gießsträngen angeordnet ist und die Öfen jeweils in eine mit der Gießanlage und eine mit der Fertigstraße fluchtende Position verschwenkbar sind. Dabei sind die Ofenpaare der einzelnen Gießstränge in Richtung Fertigstraße hintereinander angeordnet, so daß das bandförmige Gut, welches von dem der Fertigstraße ferneren Ofenpaar abgewickelt wird, durch den Durchlass zwischen den Öfen des der Fertigstraße benachbarten Ofenpaares hindurchgeführt werden kann. Auf diese Weise lassen sich sehr einfach verschiedene Gießstränge miteinander verbinden, wobei vorzugsweise nach einem weiteren Merkmal der Erfindung die Transportrollgänge mindestens teilweise wärmedämmend eingehaust sind.The invention with the furnaces, which can be rotated independently about vertical axes, makes it extremely simple to couple several cores of a casting installation with a single finishing train. This presupposes that the finishing train is arranged transversely to the two or more casting strands and the furnaces can each be pivoted into a position aligned with the casting installation and into a position aligned with the finishing train. The pairs of furnaces of the individual casting strands are arranged one behind the other in the direction of the finishing train, so that the strip-like material which is unwound from the pair of furnaces further away from the finishing train can be passed through the passage between the furnaces of the pair of furnaces adjacent to the finishing train. In this way, different casting strands can be very easily connected to one another, preferably according to a further feature of the invention, the transport roller tables are at least partially enclosed in a heat-insulating manner.

Es hat sich gezeigt, daß eine besonders günstige konstruktive Lösung darin besteht, daß jeder Ofen eines Ofenpaares in einem Traggestell angeordnet ist, welches auf einem Drehkranz mit der Schwenkachse der Öfen entsprechender Mittelachse drehbar gelagert ist.It has been shown that a particularly favorable constructive solution consists in that each furnace of a pair of furnaces is arranged in a support frame which is rotatably mounted on a turntable with the center axis corresponding to the pivot axis of the furnaces.

Durch die erfindungsgemäße Lösung ergibt sich ein weiterer Vorteil dadurch, daß die um die senkrechten Achsen verschwenkten Öfen einen festen Kaminanschluß aufweisen können, wenn dieser konzentrisch zur Schwenkachse der Öfen drehbar mit diesen verbunden ist. Beim Stand der Technik war es bislang erfordlich, wenn Kaminanschlüsse vorhanden waren, diese vor dem Verschwenken zu lösen und nach dem Verschwenken erneut anzukoppeln. Das war aus Umweltschutzgründen nachteilig.The solution according to the invention results in a further advantage that the stoves pivoted about the vertical axes can have a fixed chimney connection if this is rotatably connected to the stoves in a manner concentric to the pivot axis. In the prior art, it was previously necessary, if chimney connections were present, to disconnect them before pivoting and to couple them again after pivoting. This was disadvantageous for environmental reasons.

Ein Ausführungsbeispiel der Erfindung wird anhand einer zweisträngigen Dünnbrammengießanlage mit nachgeordneter Fertigstraße nachfolgend beschrieben. Es zeigt:

Fig. 1
eine Draufsicht auf die Gesamtanlage und
Fig. 2
einen senkrechten Schnitt durch die beiden den Gießanlagen zugeordneten Ofenpaaren.
An embodiment of the invention is described below using a two-strand thin slab caster with a downstream finishing train. It shows:
Fig. 1
a top view of the entire system and
Fig. 2
a vertical section through the two pairs of furnaces assigned to the casting plants.

In Figur 1 sind mit 1 und 2 zwei parallel angeordnete Dünnbrammengießanlagen bezeichnet, in denen ein vorverformtes Vorband erzeugt wird, das nach einer induktiven Erwärmung 3, 4 und Homogenisierung jeweils einem Ofenpaar 5, 6 zugeführt wird, wo das bandförmige Gut in jeweils einem von zwei übereinander angeordneten Öfen 9-12 aufgehaspelt wird.In FIG. 1, 1 and 2 denote two thin slab casting plants arranged in parallel, in which a preformed roughing strip is produced, which is fed to an oven pair 5, 6 after induction heating 3, 4 and homogenization, where the strip-like material is in each case in one of two stacked ovens 9-12 is coiled.

In dem jeweils anderen der beiden Öfen 9-12 der Ofenpaare 5 und 6 wird das zuvor aufgewickelte bandförmige Gut nach Verschwenken des Ofens um 90 Grad in seine Abwickelposition gebracht und in Richtung der Fertigstraße 7 abgewickelt. Dabei wird das bandförmige Gut vom Ofenpaar 5 über den eingehausten Transportrollgang 8 und durch das Ofenpaar 6 hindurch transportiert und kann somit ungehindert in die Fertigstraße 7 gelangen.In the other of the two furnaces 9-12 of the furnace pairs 5 and 6, the previously wound band-shaped material is brought into its unwinding position after pivoting the furnace by 90 degrees and unwound in the direction of the finishing train 7. The band-shaped material is transported from the pair of furnaces 5 via the enclosed roller conveyor 8 and through the pair of furnaces 6 and can thus reach the finishing train 7 unhindered.

In Figur 2 ist grob schematisch die Anordnung der beiden Ofenpaare 5 und 6 dargestellt. Die Öfen des Ofenpaares 5 sind mit 9 (oberer Ofen) und 10 (unterer Ofen) bezeichnet, die Öfen des Ofenpaares 6 mit 11 und 12. Jeder der Öfen 9 bis 12 ist in einem Traggestell 13 angeordnet und auf einem kreisförmigen Drehkranz 14 um die senkrechte Achse 15 schwenkbar. Die Öfen 9 und 10 bzw. 11 und 12 sind jeweils um 90 Grad zueinander verschwenkt dargestellt, was den Auf- und Abwickelpositionen entspricht. Während beispielsweise im Ofen 9 ein Bund aus dem bandförmigen Gut, wie bei 16 angedeutet um die horizontale Wickelachse 17 aufgewickelt wird, kann aus dem Ofen 10 heraus das um die Wickelachse 18 aufgewickelte Bund abgewickelt werden, wobei das mit B bezeichnete bandförmige Gut über den eingehausten Transportrollgang 8 und zwischen den Öfen 11 und 12 des Ofenpaares 6 hindurch zur Fertigstraße 7 transportiert wird. In der Zwischenzeit kann in einem der Öfen 11 und 12, ebenso wie im Ofen 9 ein von der Dünnbrammengießanlage 1 oder 2 kommender Strang aufgewickelt werden.The arrangement of the two furnace pairs 5 and 6 is shown roughly schematically in FIG. The ovens of the oven pair 5 are designated 9 (upper oven) and 10 (lower oven), the ovens of the oven pair 6 with 11 and 12. Each of the ovens 9 to 12 is arranged in a support frame 13 and on a circular turntable 14 around the vertical axis 15 pivotable. The furnaces 9 and 10 or 11 and 12 are each shown pivoted by 90 degrees to one another, which corresponds to the winding and unwinding positions. While, for example, a bundle of the band-shaped material, as indicated at 16, is wound around the horizontal winding axis 17 in the furnace 9, the bundle wound around the winding axis 18 can be unwound from the furnace 10, the band-shaped material denoted by B above the housed one Transport roller table 8 and between the furnaces 11 and 12 of the furnace pair 6 is transported to the finishing train 7. In the meantime, a strand coming from the thin slab caster 1 or 2 can be wound up in one of the furnaces 11 and 12, as in the furnace 9.

In gleicher Weise ist es möglich, auch mehrere Gießstränge miteinander zu verbinden, so daß mit sehr einfachen Mitteln eine äußerst flexible Anlage geschaffen werden kann. Natürlich ist die Anwendung der Erfindung nicht auf Dünnbrammengießanlagen mit nachgeordneten Fertigstraßen beschränkt, auch Breitbandstraßen können mit der Vorrichtung nach der Erfindung in günstiger Weise verbessert werden.In the same way, it is also possible to connect several casting strands together, so that an extremely flexible system can be created with very simple means. Of course, the application of the invention is not limited to thin slab casting plants with downstream finishing lines, broadband lines can also be improved in a favorable manner with the device according to the invention.

Die separate Anordnung der Öfen 9 bis 12 in Traggestellen 13 ermöglicht neben der Drehung auch ein Herausfahren der gesamten Ofeneinheit in eine seitliche Wartungsposition außerhalb der Straße, so daß Reparaturen an einem der Öfen 9 oder 10 bzw. 11 oder 12 eines Ofenpaares 5 oder 6 durchgeführt werden können, während der jeweils verbleibende Ofen noch mit verminderter Leistung zur Aufrechterhaltung des Betriebes verwendet werden kann.The separate arrangement of the furnaces 9 to 12 in support frames 13 enables the entire furnace unit to be moved out into a lateral maintenance position outside the street in addition to the rotation, so that repairs to one of the furnaces 9 or 10 or 11 or 12 of a pair of furnaces 5 or 6 are carried out can be used while the remaining furnace can still be used with reduced output to maintain operation.

Die vorgeschlagene Vorrichtung und die damit bestückte Anlage zeichnet sich durch besondere Einfachheit in der Konstruktion und auch in der Steuerung aus. Die durch die Erfindung erzielbare Platzersparnis ist nicht nur für die Anlagegröße von Bedeutung, sondern auch für die thermischen Verhältnisse; denn je kürzer die Anlage bauen kann, um so geringer sind die Wärmeverluste zwischen den einzelnen Anlagenteilen.The proposed device and the system equipped with it are characterized by particular simplicity in construction and also in control. The space saving achievable by the invention is important not only for the size of the system, but also for the thermal conditions; because the shorter the system can be built, the lower the heat losses between the individual system components.

Claims (8)

  1. An apparatus for alternately coiling and uncoiling strip material (B), in particular continuously-cast thin slabs in pairs of furnaces (5, 6), consisting of two furnaces (9, 10, 11, 12) arranged one above the other with horizontal coiler shafts (17, 18), the furnaces (9-12) being pivotable from a coiling position into an uncoiling position and the coiling and uncoiling taking place at different speeds,
    characterised in that each furnace (9 to 12) of the pair of furnaces (5, 6) is pivotable about its vertical axis (15) independently of the other furnace.
  2. An apparatus according to Claim 1, characterised in that both furnaces (9, 10, or 11, 12) are pivotable about their common axis.
  3. An apparatus according to Claim 1 at 2, characterised in that the axis about which the furnaces (9, 10 or 11, 12) are pivotable intersects the coiling axis centrally.
  4. An apparatus according to one of Claims 1 to 3, characterised in that a horizontal passage for strip material which is not to be coiled is provided between the furnaces (9, 10 or 11, 12).
  5. An apparatus according to one of Claims 1 to 4, characterised in that each furnace (9 to 12) is pivotable by 90 degrees between the coiling position and uncoiling position.
  6. An apparatus according to one of Claims 1 to 5, characterised in that a pair of furnaces (5, 6) is arranged in each case after each strand of a multi-strand thin-slab casting plant (1, 2) and before a common finishing train (7), between which pair of furnaces and between the furnaces (9, 10 or 11, 12) of the pair of furnaces facing the finishing train (7) there are provided horizontal driving roller tables (8) for the strip material.
  7. An apparatus according to Claim 6, characterised in that the driving roller tables (8) are at least partly enclosed in heat-insulating manner.
  8. An apparatus according to one of Claims 1 to 6, characterised in that each furnace (9 to 12) of a pair of furnaces (5, 6) is arranged in a supporting frame (13) which is rotationally mounted on a turntable (14) with a central axis (15) corresponding to the pivot axis of the furnaces.
EP94250216A 1993-10-08 1994-09-01 Device for winding-up and winding-off alternately strip-shaped material Expired - Lifetime EP0647485B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4334826A DE4334826C1 (en) 1993-10-08 1993-10-08 Apparatus for the alternate winding and unwinding of stock in strip form
DE4334826 1993-10-08

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EP0647485A1 EP0647485A1 (en) 1995-04-12
EP0647485B1 true EP0647485B1 (en) 1997-03-12

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EP (1) EP0647485B1 (en)
DE (2) DE4334826C1 (en)
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5848543A (en) * 1997-07-14 1998-12-15 Tippins Incorporated Strip mill with movable coiling furnace
US7823431B2 (en) * 2003-06-13 2010-11-02 Siemens Industry, Inc. Method and apparatus for temporarily interrupting the passage of long products between upstream and downstream paths in a rolling mill

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE972603C (en) * 1950-08-03 1959-09-10 Kocks Gmbh Friedrich Continuously working rolling mill for hot rolling of wide strip
DE1452185A1 (en) * 1964-01-13 1968-12-19 Achenbach Soehne Gmbh Uncoiler on one-way rolling mills
DE3241745C2 (en) * 1982-11-11 1985-08-08 Mannesmann AG, 4000 Düsseldorf Process for the production of hot-rolled steel strip from continuously cast raw material in directly successive work steps
US4630352A (en) * 1984-09-04 1986-12-23 Tippins Machinery Company, Inc. Continuous rolling method and apparatus
DE3743057C1 (en) * 1987-12-18 1988-09-01 Krupp Gmbh Process and plant for producing hot-rolled strip from continuously cast starting material
DE3927189A1 (en) * 1989-08-17 1991-02-21 Schloemann Siemag Ag PLANT FOR THE PRODUCTION OF STEEL STRIP
DE4013582C1 (en) * 1990-04-24 1991-07-11 Mannesmann Ag, 4000 Duesseldorf, De

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ES2098864T3 (en) 1997-05-01
EP0647485A1 (en) 1995-04-12
US5494264A (en) 1996-02-27
DE4334826C1 (en) 1994-11-03
DE59402034D1 (en) 1997-04-17

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