EP1641573B1 - Device for producing a hot-rolled thermal strip, especially made of strip-type continuous casting material - Google Patents

Device for producing a hot-rolled thermal strip, especially made of strip-type continuous casting material Download PDF

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Publication number
EP1641573B1
EP1641573B1 EP04739967A EP04739967A EP1641573B1 EP 1641573 B1 EP1641573 B1 EP 1641573B1 EP 04739967 A EP04739967 A EP 04739967A EP 04739967 A EP04739967 A EP 04739967A EP 1641573 B1 EP1641573 B1 EP 1641573B1
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EP
European Patent Office
Prior art keywords
furnace
casting
line
rolling
strip
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Revoked
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EP04739967A
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German (de)
French (fr)
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EP1641573A2 (en
Inventor
Christoph Klein
Jürgen Müller
Karl Rittner
Dieter Rosenthal
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SMS Group GmbH
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SMS Demag 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
    • 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
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B15/0007—Cutting or shearing the product
    • 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
    • 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
    • B21B2001/225—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 by hot-rolling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5184—Casting and working

Definitions

  • the invention relates to a device for producing hot-rolled steel strip according to the CSP plant concept, comprising at least one continuous casting machine, at least one pair of shears, at least one equalizing furnace, a descaling machine, possibly a roughing train, a finishing train (multi-stand rolling mill or Steckel rolling mill (e)). , a roller table with cooling zone and at least one wind-up reel for the hot strip.
  • the casting machine, the shears, the reheating furnace, / -Eas Pandasofen, the multi-stand rolling mill, the outlet roller table with cooling zone and take-up reel are arranged in line.
  • the casting machines and the reheating furnaces are parallel next to each other.
  • transport ferries the slabs are spent in the rolling line.
  • Such an investment concept requires plant lengths between 300 m and 500 m.
  • a method and an apparatus for producing hot rolled steel strip of continuously cast starting material preferably thin slabs is known, wherein the cast in the casting machine precursor material is divided after solidification in lengths by means of scissors, which correspond to the desired coil weight.
  • the thin slabs are in one Equalizer homogenized, then pre-rolled in a roughing mill, finish-rolled in a finishing train and cooled in a cooling zone and wound on a reel.
  • the thin slabs are heated to temperatures above 1150 ° C after homogenisation and before the first roughing pass. Then, a rough rolling of the thin slab with subsequent recrystallization and cooling of the pre-rolled strip is carried out to rolling temperature for the finishing train and the subsequent finish rolling.
  • the plant for the production of hot strip shows, among other things, two parallel arranged continuous casting machines with two shears and with two equalizing ovens.
  • the equalization furnaces is followed by a transport ferry for the thin slabs, which has a ferry.
  • the transport ferry By means of the Fährwagens the thin slabs can be transported alternately from the equalizing ovens in the other rolling line.
  • a store for the cast thin slabs is provided behind the transport ferry, which may be heated or unheated and which is arranged in line with the rolling train.
  • the document DE 40 41 206 A1 describes a method and a plant for the production of hot-rolled steel strip, in particular for stainless steels of continuously cast starting material.
  • the starting material cast in the casting machine is subdivided into thin slabs, which are homogenized in a compensation furnace and heated to rolling temperature, then introduced into a rolling mill and finish rolled to predetermined final dimensions in a series of rolling passes.
  • a thin slab is transferred to a ferry and offset with this from its starting position in the line with the continuous casting laterally in a line parallel to a rolling line, wherein at the same time or before a ferry corresponding portion of a roller table from the line of the rolling train also transversely is driven out.
  • the thin slab is accelerated from the ferry to rolling speed, introduced into the rolling train and in the flow through this to a coiled pre-rolled coil and this introduced immediately after the exit from the last frame in a Steckel furnace and wound up to avoid loss of temperature.
  • the section of the roller table and at the same time or before the ferry are returned to their original positions, the rolling mill is switched to reversing and the tape is finished finishing under unwinding of the reel of the Steckel furnace in reversing operation under unwinding of the reel of the Steckel furnace in reversing and from the then then last frame moved out over the roller table and wound up in a terminal coiler station to the coil.
  • the document WO 92/00815 relates to a plant for the production of hot strip, which has been rolled from previously cast thin slabs.
  • the plant consists of a casting machine with pan and tundish for the molten steel and a mold into which the cast steel flows from the tundish and the thin slab at the bottom of the mold escapes.
  • Behind the caster is a roughing mill and behind the roughing mill a scissor device in which the cast strip is deflected to slab length.
  • an induction furnace is arranged as a temperature compensation and reheating furnace, and behind the induction furnace, a coiler oven for the reduced in volume Vorband.
  • Behind the coiler oven is a multi-stand rolling mill, a roller table with cooling zone, a finishing mill and a reel for the finished rolled hot strip.
  • the document DE 32 41 745 A1 discloses an apparatus for producing hot-rolled steel strip comprising: casting machine, shears, take-up device, furnace, unwinding device, coiler furnace, rolling stand, coiler furnace and underfloor reel.
  • the system components arranged in line are arranged parallel to one another and connected to one another via the rotary hearth furnace.
  • This document discloses that the casting and rolling direction are arranged in opposite directions, so that the system is to be accommodated in the smallest space. Prerequisite is that a take-up and unwinding are part of the system.
  • the document EP 0 045 400 A1 discloses a plant for casting and rolling of metals for the production of rod and wire profiles consisting of: casting machine, secondary cooling line, Temperaturausretessize, a drive unit, shears, a transversely displaceable roughing, a first intermediate road, a curved 180 ° deflection device, a second intermediate road, a Prefabricated line, a primary cooling section, a winding layer, a secondary cooling section and a collection station.
  • This document describes that the casting and rolling direction are arranged in opposite directions. However, in each case only poured over a casting machine. The roughing road is assigned to the respective casting machine by transverse shifting. Before the reheating furnace, which connects the casting and rolling line, rolling means are arranged. The connection of casting and rolling line is effected by an arcuate deflection of the rolled product.
  • the document GB 2 302 054 A discloses a plant for casting and rolling a thin slab z.
  • B. a thickness of 80 mm consisting of: casting machine, scissors, roller hearth furnace, heated turntable, roughing, roller hearth furnace, scissors, descaler, rolling mill and reel.
  • This document describes an arrangement of the casting and rolling device at an angle of 90 °. Casting and rolling line are not aligned in opposite directions.
  • the invention proposes to arrange the casting line and the rolling line parallel or approximately parallel to each other in such a way that the casting direction and rolling direction are aligned substantially opposite to each other and are connected by a warm-up, wherein the warm-up furnace, a Hubherdofen or a walking beam oven.
  • the warm-up furnace a Hubherdofen or a walking beam oven.
  • the distance between the casting line and the rolling line is designed so that a sufficient dwell and buffer time is ensured in the heating oven.
  • the preheating furnace is designed according to a further proposal so that at least three slabs and a maximum of twelve slabs can be accommodated in the equalization furnace.
  • the casting line consists of one or more casting machines or of a plurality of casting strands which expediently lie at a height in terms of location.
  • At least one continuous furnace is arranged between the casting machine and the heating oven. Furthermore, it is considered expedient that at least one continuous furnace is arranged between the rolling mill and the reheating furnace.
  • FIG. 1 shows the compact plant according to the invention, in the casting line GL and rolling line WL are arranged parallel to each other and casting direction and rolling direction are in opposite directions.
  • the connection between the casting line and the rolling line is provided by a warming-up furnace AO which, in the sense of a ferry, brings the slabs from the casting line into the rolling line and at the same time raises the temperature of the slabs to the required piercing temperature for rolling mill WL.
  • the reheating furnace AO at least three and a maximum of 12 slabs are recorded.
  • the distance between the casting line with the GM casting machine and the rolling line with the rolling mill WM is in each case designed so that a sufficient dwell and buffer time is ensured in the reheating furnace.
  • the molding line GL is known to consist of several aggregates or machines and usually comprises a ladle and a tundish for receiving the molten metal to be cast and from a mold into which the molten metal from the tundish is introduced by means of a pouring tube and in the mold is poured into a thin slab, which is then cooled in a curved scaffold and cut to the so-called bundle weight by means of a scissors device.
  • a ladle and a tundish for receiving the molten metal to be cast and from a mold into which the molten metal from the tundish is introduced by means of a pouring tube and in the mold is poured into a thin slab, which is then cooled in a curved scaffold and cut to the so-called bundle weight by means of a scissors device.
  • a horrin-up furnace For the warm-up furnace a réellenhubherdofen or a walking beam furnace is used.
  • the rolling line WL is known to consist of a descaler, possibly a roughing stand, a multi-stand rolling mill, optionally at least one Steckel mill, a behind arranged roller table with cooling device for the rolled hot strip and at least one subsequent coiling device for coiling the finished rolled strip on the so-called coil weight. These system components are also not shown.
  • FIG. 2 and Figure 2a show the compact system according to the invention with casting line GL and rolling line WL, wherein the casting direction of the casting machine GM and the rolling direction in the rolling mill WW run in opposite directions.
  • a tunnel kiln TO is additionally arranged as a continuous furnace.
  • FIG. 2a shows that in addition to the compact system according to FIG. 2 behind the warm-up furnace and before the rolling mill also a tunnel furnace is arranged as a continuous furnace.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Basic Packing Technique (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Continuous Casting (AREA)

Abstract

An installation for producing hot-rolled steel strip, including a continuous casting machine, a shear, a soaking furnace, a descaler, possibly a roughing train, a finishing train including a multi-stand rolling mill or Steckel mill, a roller table with a cooling zone, and a coiling reel for the hot strip. The casting line and the pass line are arranged parallel or approximately parallel to each other so that the casting direction and the rolling direction are oriented opposite each other and are connected with each other by a reheating furnace. The reheating furnace is a rocker-bar hearth furnace or a walking-beam furnace. The distance between the casting line and the pass line is designed so that a sufficient residence and buffering time for the thin slabs in the reheating furnace is guaranteed. The reheating furnace is designed to hold from three to twelve slabs.

Description

Die Erfindung betrifft eine Vorrichtung zur Herstellung von warmgewalztem Stahlband nach dem CSP-Anlagen-Konzept, umfassend mindestens eine Stranggießmaschine, mindestens eine Schere, mindestens einen Ausgleichsofen, einen Entzunderer, ggf. eine Vorstraße, eine Fertigstraße (mehrgerüstiges Walzwerk oder Steckelwalzwerk(e) ), einen Rollgang mit Kühlzone und mindestens einen Aufwickelhaspel für das Warmband.The invention relates to a device for producing hot-rolled steel strip according to the CSP plant concept, comprising at least one continuous casting machine, at least one pair of shears, at least one equalizing furnace, a descaling machine, possibly a roughing train, a finishing train (multi-stand rolling mill or Steckel rolling mill (e)). , a roller table with cooling zone and at least one wind-up reel for the hot strip.

Bei heutigen Dünn- und Mediumbrammenanlagen sind die Gießmaschine, die Schere, der Aufwärmofen, /-Ausgleichsofen, das mehrgerüstige Walzwerk, der Auslaufrollgang mit Kühlzone und Aufwickelhaspel in Linie angeordnet. Bei Mehrstranganlagen liegen die Gießmaschinen und die Aufwärmöfen parallel nebeneinander. Über sogenannte Transportfähren werden die Brammen in die Walzlinie verbracht. Ein solches Anlagekonzept erfordert Anlagenlängen zwischen 300 m und 500 m.In today's thin and medium slab plants, the casting machine, the shears, the reheating furnace, / -Easgleichsofen, the multi-stand rolling mill, the outlet roller table with cooling zone and take-up reel are arranged in line. In multiple-line systems, the casting machines and the reheating furnaces are parallel next to each other. About so-called transport ferries, the slabs are spent in the rolling line. Such an investment concept requires plant lengths between 300 m and 500 m.

Aus dem Dokument DE 42 36 307 A1 ist ein Verfahren und eine Vorrichtung zur Herstellung von warmgewalztem Stahlband aus stranggegossenem Vormaterial, vorzugsweise Dünnbrammen bekannt, wobei das in der Gießmaschine gegossenen Vormaterial nach Erstarren in Längen mittels Scheren unterteilt wird, die dem gewünschten Bundgewicht entsprechen. Die Dünnbrammen werden in einem Ausgleichsofen homogenisiert, anschließend in einer Vorwalzstraße vorgewalzt, in einer Fertigstraße fertiggewalzt und in einer Kühlzone abgekühlt und auf einen Haspel aufgewickelt. Im Hinblick auf verschiedene Stahlqualitäten werden die Dünnbrammen im Anschluss an das Homogenisieren und vor dem ersten Vorwalzstich auf Temperaturen über 1150 ° C aufgeheizt. Dann erfolgt ein Vorwalzen der Dünnbramme mit anschließendem Rekristallisieren und Kühlen des vorgewalzten Bandes auf Walztemperatur für die Fertigstraße und das anschließende Fertigwalzen. Die Anlage zur Herstellung von Warmband zeigt unter anderem zwei parallel angeordnete Stranggießmaschinen mit zwei Scheren sowie mit zwei Ausgleichsöfen. Den Ausgleichsöfen schließt sich eine Transportfähre für die Dünnbrammen an, die einen Fährwagen aufweist. Mittels des Fährwagens können die Dünnbrammen alternierend von den Ausgleichsöfen in die jeweils andere Walzlinie transportiert werden. Um einen konstanten Gieß- und Walzvorgang zu gewährleisten, ist hinter der Transportfähre ein Speicher für die gegossenen Dünnbrammen vorgesehen, der beheizt oder auch unbeheizt sein kann und der in Linie mit der Walzstraße angeordnet ist.From the document DE 42 36 307 A1 a method and an apparatus for producing hot rolled steel strip of continuously cast starting material, preferably thin slabs is known, wherein the cast in the casting machine precursor material is divided after solidification in lengths by means of scissors, which correspond to the desired coil weight. The thin slabs are in one Equalizer homogenized, then pre-rolled in a roughing mill, finish-rolled in a finishing train and cooled in a cooling zone and wound on a reel. With regard to different grades of steel, the thin slabs are heated to temperatures above 1150 ° C after homogenisation and before the first roughing pass. Then, a rough rolling of the thin slab with subsequent recrystallization and cooling of the pre-rolled strip is carried out to rolling temperature for the finishing train and the subsequent finish rolling. The plant for the production of hot strip shows, among other things, two parallel arranged continuous casting machines with two shears and with two equalizing ovens. The equalization furnaces is followed by a transport ferry for the thin slabs, which has a ferry. By means of the Fährwagens the thin slabs can be transported alternately from the equalizing ovens in the other rolling line. In order to ensure a constant casting and rolling process, a store for the cast thin slabs is provided behind the transport ferry, which may be heated or unheated and which is arranged in line with the rolling train.

Das Dokument DE 40 41 206 A1 beschreibt ein Verfahren und eine Anlage zur Herstellung von warmgewalztem Stahlband, insbesondere für Edelstähle aus stranggegossenen Vormaterial. Das in der Gießmaschine gegossene Vormaterial wird nach dem Erstarren in Längen zu Dünnbrammen unterteilt, die in einem Ausgleichsofen homogenisiert und auf Walztemperatur erwärmt werden, anschließend in ein Walzwerk eingeführt und in einer Folge von Walzstichen zu vorgebbaren Endabmessungen fertiggewalzt werden. Vom Ausgleichsofen wird eine Dünnbramme in eine Fähre überführt und mit dieser aus ihrer Ausgangsposition in die Linie mit der Stranggießmaschine seitlich in eine dazu parallele Linie einer Walzstraße versetzt, wobei zugleich oder zuvor ein der Fähre entsprechendes Teilstück eines Rollgangs aus der Linie der Walzstraße ebenfalls quer ab herausgefahren wird. So dann wird die Dünnbramme aus der Fähre heraus auf Walzgeschwindigkeit beschleunigt, in die Walzstraße eingeführt und im Vorlauf durch diese zu einem wickelfähigen Coil vorgewalzt und dieses unmittelbar nach dem Auslauf aus dem letzten Gerüst in eine Steckelofen eingeführt und darin zur Vermeidung von Temperaturverlust aufgehaspelt. Das Teilstück des Rollgangs sowie zugleich oder zuvor die Fähre werden in ihre Ausgangspositionen zurückgefahren, das Walzwerk wird auf Reversierbetrieb umgestellt und das Band wird unter Abwicklung vom Haspel des Steckelofens im Reversierbetrieb unter Abwicklung vom Haspel des Steckelofens im Reversierbetrieb fertiggewalzt und aus dem so dann letzten Gerüst über den Rollgang herausgefahren und in einer endständigen Haspelstation zum Coil aufgehaspelt.The document DE 40 41 206 A1 describes a method and a plant for the production of hot-rolled steel strip, in particular for stainless steels of continuously cast starting material. After being solidified, the starting material cast in the casting machine is subdivided into thin slabs, which are homogenized in a compensation furnace and heated to rolling temperature, then introduced into a rolling mill and finish rolled to predetermined final dimensions in a series of rolling passes. From the equalizing furnace, a thin slab is transferred to a ferry and offset with this from its starting position in the line with the continuous casting laterally in a line parallel to a rolling line, wherein at the same time or before a ferry corresponding portion of a roller table from the line of the rolling train also transversely is driven out. So then the thin slab is accelerated from the ferry to rolling speed, introduced into the rolling train and in the flow through this to a coiled pre-rolled coil and this introduced immediately after the exit from the last frame in a Steckel furnace and wound up to avoid loss of temperature. The section of the roller table and at the same time or before the ferry are returned to their original positions, the rolling mill is switched to reversing and the tape is finished finishing under unwinding of the reel of the Steckel furnace in reversing operation under unwinding of the reel of the Steckel furnace in reversing and from the then then last frame moved out over the roller table and wound up in a terminal coiler station to the coil.

Das Dokument WO 92/00 815 betrifft eine Anlage zur Herstellung von Warmband, welches aus zuvor gegossenen Dünnbrammen ausgewalzt worden ist. Die Anlage besteht aus einer Gießmaschine mit Pfanne und Tundish für den geschmolzenen Stahl sowie aus einer Kokille, in welche der gegossenen Stahl aus dem Tundish einfließt und die Dünnbramme am unteren Ende der Kokille austritt. Hinter der Gießmaschine befindet sich ein Vorwalzwerk und hinter dem Vorwalzwerk eine Scherenvorrichtung, in der das gegossene Band auf Brammenlänge abgelenkt wird. Im Anschluss daran ist ein Induktionsofen als Temperaturausgleichs- und Aufwärmofen angeordnet sowie hinter dem Induktionsofen ein Haspelofen für das in der Dicke reduzierte Vorband. Hinter dem Haspelofen befindet sich ein mehrgerüstiges Walzwerk, ein Rollgang mit Kühlzone, ein Fertigwalzwerk sowie ein Haspel für das fertig gewalzte Warmband.The document WO 92/00815 relates to a plant for the production of hot strip, which has been rolled from previously cast thin slabs. The plant consists of a casting machine with pan and tundish for the molten steel and a mold into which the cast steel flows from the tundish and the thin slab at the bottom of the mold escapes. Behind the caster is a roughing mill and behind the roughing mill a scissor device in which the cast strip is deflected to slab length. Following this, an induction furnace is arranged as a temperature compensation and reheating furnace, and behind the induction furnace, a coiler oven for the reduced in volume Vorband. Behind the coiler oven is a multi-stand rolling mill, a roller table with cooling zone, a finishing mill and a reel for the finished rolled hot strip.

Dem oben genannten dokumentarischen Stand der Technik ist gemeinsam, dass sämtliche Anlagenaggregate bzw. Maschinen in Linie angeordnet sind, wodurch diese Anlagenkonzepte zur erheblichen Anlagenlängen führen, unabhängig davon, ob diese Anlagen in Linie nebeneinander angeordnet sind und mit Fähren miteinander verbunden sind.The above-mentioned documentary prior art has in common that all plant units or machines are arranged in line, whereby these plant concepts lead to significant plant lengths, regardless of whether these plants are arranged in line next to each other and are connected by ferries.

Das Dokument DE 32 41 745 A1 offenbart eine Vorrichtung zur Herstellung von warmgewalztem Stahlband bestehend aus: Gießmaschie, Schere, Aufwickelvorrichtung, Ofen, Abwickelvorrichtung, Haspelofen, Walzgerüst, Haspelofen und Unterflurhaspel.
Die in Linie angeordneten Anlagenkomponenten sind parallel zueinander angeordnet und über den Drehherdofen miteinander verbunden.
Dieses Dokument offenbart, dass die Gieß- und Walzrichtung gegenläufig zueinander angeordnet sind, so dass die Anlage auf kleinstem Raum unterzubringen ist. Voraussetzung dabei ist, dass eine Aufwickelvorrichtung und Abwickelvorrichtung Bestandteil der Anlage sind.The document DE 32 41 745 A1 discloses an apparatus for producing hot-rolled steel strip comprising: casting machine, shears, take-up device, furnace, unwinding device, coiler furnace, rolling stand, coiler furnace and underfloor reel.
The system components arranged in line are arranged parallel to one another and connected to one another via the rotary hearth furnace.
This document discloses that the casting and rolling direction are arranged in opposite directions, so that the system is to be accommodated in the smallest space. Prerequisite is that a take-up and unwinding are part of the system.

Das Dokument EP 0 045 400 A1 offenbart eine Anlage zum Gießen und Walzen von Metallen zur Erzeugung von Stab- und Drahtprofilen bestehend aus: Gießmaschine, Sekundärkühlstrecke, Temperaturausgleichsstrecke, einer Treibeinheit, Trennschere, einer querverschiebbaren Vorstraße, einer ersten Zwischenstraße, einer bogenförmigen 180°-Umlenkeinrichtung, einer zweiten Zwischenstraße, einer Fertigstraße, einer Primärkühlstrecke, einem Windungsleger, einer Sekundärkühlstrecke und einer Sammelstation.
Dieses Dokument beschreibt, dass die Gieß- und Walzrichtung gegenläufig zueinander angeordnet sind.
Jedoch wird jeweils nur über eine Gießmaschine gegossen. Die Vorstraße wird der jeweiligen Gießmaschine durch Querverschieben zugeordnet. Vor dem Aufwärmofen, der die Gieß- und Walzlinie verbindet, sind Walzeinrichtungen angeordnet. Die Verbindung von Gieß- und Walzlinie erfolgt durch eine bogenförmige Umlenkung des Walzproduktes.The document EP 0 045 400 A1 discloses a plant for casting and rolling of metals for the production of rod and wire profiles consisting of: casting machine, secondary cooling line, Temperaturausgleichsstrecke, a drive unit, shears, a transversely displaceable roughing, a first intermediate road, a curved 180 ° deflection device, a second intermediate road, a Prefabricated line, a primary cooling section, a winding layer, a secondary cooling section and a collection station.
This document describes that the casting and rolling direction are arranged in opposite directions.
However, in each case only poured over a casting machine. The roughing road is assigned to the respective casting machine by transverse shifting. Before the reheating furnace, which connects the casting and rolling line, rolling means are arranged. The connection of casting and rolling line is effected by an arcuate deflection of the rolled product.

Das Dokument GB 2 302 054 A offenbart eine Anlage zum Gießen und Walzen einer Dünnbramme z. B. einer Dicke von 80 mm bestehend aus: Gießmaschine, Schere, Rollenherdofen, beheizbarer Drehtisch, Vorgerüst, Rollenherdofen, Schere, Entzunderer, Walzstraße und Haspel.The document GB 2 302 054 A discloses a plant for casting and rolling a thin slab z. B. a thickness of 80 mm consisting of: casting machine, scissors, roller hearth furnace, heated turntable, roughing, roller hearth furnace, scissors, descaler, rolling mill and reel.

Dieses Dokument beschreibt eine Anordnung der Gieß- und Walzeinrichtung unter einem Winkel von 90°. Gieß- und Walzlinie sind nicht gegenläufig ausgerichtet.This document describes an arrangement of the casting and rolling device at an angle of 90 °. Casting and rolling line are not aligned in opposite directions.

Auf dem Hintergrund des zuvor erörterten Standes der Technik ist es die Aufgabe der Erfindung, ein neues Anlagenkonzept zu schaffen, bei dem der Platzbedarf und insbesondere die Anlagenlänge ebenfalls verringert ist.Against the background of the prior art discussed above, it is the object of the invention to provide a new plant concept in which the space requirement and in particular the plant length is also reduced.

Zur Lösung der oben genannten Aufgabe wird mit der Erfindung vorgeschlagen, die Gießlinie und die Walzlinie parallel oder annähernd parallel nebeneinander in der Weise anzuordnen, dass Gießrichtung und Walzrichtung im Wesentlichen gegenläufig zueinander ausgerichtet sind und durch einen Aufwärmofen miteinander verbunden sind, wobei der Aufwärmofen ein Hubherdofen oder ein Hubbalkenofen ist. Durch diese Maßnahme wird in überraschend einfacher Art die bisher bekannte Länge von Dünnbrammenanlagen ganz erheblich reduziert und eine Kompaktanlage zum Herstellen von Dünnband bereit gestellt, wobei der Aufwärmofen die Brammen von der Gießlinie in die Walzlinie bringt, und gleichzeitig die Temperatur der Brammen auf die geforderte Anstichtemperatur erhöht. Besonders geeignet ist ein Hubherdofen oder ein Hubbalkenofen als Aufwärmofen.To achieve the above object, the invention proposes to arrange the casting line and the rolling line parallel or approximately parallel to each other in such a way that the casting direction and rolling direction are aligned substantially opposite to each other and are connected by a warm-up, wherein the warm-up furnace, a Hubherdofen or a walking beam oven. By this measure, the previously known length of thin slab plants is considerably reduced in a surprisingly simple way and provided a compact plant for the production of thin strip, the reheating furnace brings the slabs of the casting line in the rolling line, and at the same time the temperature of the slabs to the required ramming temperature elevated. Particularly suitable is a Hubherdofen or a walking beam oven as a warm-up oven.

In Fortsetzung des Erfindungsgedankens wird vorgeschlagen, dass der Abstand zwischen der Gießlinie und der Walzlinie so ausgelegt ist, dass eine ausreichende Verweil- und Pufferzeit im Aufwärmofen gewährleistet ist. Der Vorwärmofen wird nach einem weitergehenden Vorschlag so ausgelegt, dass mindestens drei Brammen und maximal zwölf Brammen im Ausgleichsofen Platz finden.In continuation of the inventive concept it is proposed that the distance between the casting line and the rolling line is designed so that a sufficient dwell and buffer time is ensured in the heating oven. The preheating furnace is designed according to a further proposal so that at least three slabs and a maximum of twelve slabs can be accommodated in the equalization furnace.

In einer weiterbildenden Ausgestaltung der Erfindung ist vorgesehen, dass die Gießlinie aus einer oder mehreren Gießmaschinen oder aus mehreren Gießsträngen besteht, die zweckmäßigerweise lagemäßig in einer Höhe liegen.In a further development of the invention, it is provided that the casting line consists of one or more casting machines or of a plurality of casting strands which expediently lie at a height in terms of location.

Erfindungsgemäß wird ferner vorgeschlagen, dass zwischen der Gießmaschine und dem Aufwärmofen mindestens ein Durchlaufofen angeordnet ist. Ferner wird es als zweckmäßig angesehen, dass zwischen Walzwerk und Aufwärmofen mindestens ein Durchlaufofen angeordnet ist.According to the invention, it is further proposed that at least one continuous furnace is arranged between the casting machine and the heating oven. Furthermore, it is considered expedient that at least one continuous furnace is arranged between the rolling mill and the reheating furnace.

Die Erfindung wird anhand von Ausführungsbeispielen schematisierend näher beschrieben.The invention will be described schematically with reference to exemplary embodiments.

Es zeigen:

Figur 1
im Blockschaltbild die gegenläufige Anordnung von Gießlinie und Walzlinie und einen diese verbindenden Ausgleichsofen.
Figur 2
im Blockschaltbild die gegenläufige Anordnung von Gießlinie und Walzlinie gemäß Figur 1, zusätzlich mit einem der Gießmaschine nachgeordneten Tunnelofen.
Figur 2a
im Blockschaltbild die Anlage gemäß Figur 1, jedoch mit Tunnelöfen, die jeweils der Gießmaschine und dem Walzwerk zugeordnet sind.
Show it:
FIG. 1
in the block diagram, the opposite arrangement of casting line and rolling line and a connecting them equalizing furnace.
FIG. 2
in the block diagram, the opposite arrangement of the casting line and rolling line according to FIG. 1 additionally with a tunnel kiln downstream of the casting machine.
FIG. 2a
in the block diagram the system according to FIG. 1 but with tunnel kilns associated with the casting machine and the rolling mill, respectively.

Figur 1 zeigt die erfindungsgemäße Kompaktanlage, bei der Gießlinie GL und Walzlinie WL parallel zueinander angeordnet sind und Gießrichtung und Walzrichtung gegenläufig sind. Die Verbindung zwischen Gießlinie und Walzlinie wird durch einen Aufwärmofen AO geschaffen, der im Sinne einer Fähre die Brammen von der Gießlinie in die Walzlinie bringt und gleichzeitig die Temperatur der Brammen auf die geforderte Anstichtemperatur für Walzwerk WL erhöht. In dem Aufwärmofen AO finden mindestens drei und maximal 12 Brammen Aufnahme. Der Abstand zwischen der Gießlinie mit der Gießmaschine GM und der Walzlinie mit dem Walzwerk WM ist jeweils so ausgelegt, dass eine ausreichende Verweil-und Pufferzeit in dem Aufwärmofen gewährleistet ist. FIG. 1 shows the compact plant according to the invention, in the casting line GL and rolling line WL are arranged parallel to each other and casting direction and rolling direction are in opposite directions. The connection between the casting line and the rolling line is provided by a warming-up furnace AO which, in the sense of a ferry, brings the slabs from the casting line into the rolling line and at the same time raises the temperature of the slabs to the required piercing temperature for rolling mill WL. In the reheating furnace AO at least three and a maximum of 12 slabs are recorded. The distance between the casting line with the GM casting machine and the rolling line with the rolling mill WM is in each case designed so that a sufficient dwell and buffer time is ensured in the reheating furnace.

Die Gießlinie GL besteht bekanntermaßen aus mehreren Aggregaten bzw. Maschinen und umfasst in der Regel eine Gießpfanne und einen Tundish zur Aufnahme des zu vergießenden geschmolzenen Metalls sowie aus einer Kokille, in die das schmelzflüssige Metall aus dem Tundish mittels eines Gießrohres eingeleitet wird und in der Kokille zu einer dünnen Bramme gegossen wird, die anschließend in einem gebogenen Stützgerüst gekühlt und auf das sogenannten Bundgewicht mittels einer Scherenvorrichtung abgelängt wird. Diese Anlagenteile sind der Einfachheit halber nicht dargestellt.The molding line GL is known to consist of several aggregates or machines and usually comprises a ladle and a tundish for receiving the molten metal to be cast and from a mold into which the molten metal from the tundish is introduced by means of a pouring tube and in the mold is poured into a thin slab, which is then cooled in a curved scaffold and cut to the so-called bundle weight by means of a scissors device. These parts of the system are not shown for the sake of simplicity.

Für den Aufwärmofen kommt ein Stufenhubherdofen oder ein Hubbalkenofen zum Einsatz.For the warm-up furnace a Stufenhubherdofen or a walking beam furnace is used.

Die Walzlinie WL besteht bekanntermaßen aus einem Entzunderer, ggf. einem Vorgerüst, einem mehrgerüstigen Walzwerk, ggf. mindestens einem Steckelwalzwerk, einem dahinter angeordneten Rollgang mit Kühleinrichtung für das gewalzte Warmband sowie mindestens einer anschließenden Haspeleinrichtung zum Aufhaspeln des fertig gewalzten Bandes auf das sogenannte Bundgewicht. Diese Anlagenteile sind ebenfalls nicht dargestellt.The rolling line WL is known to consist of a descaler, possibly a roughing stand, a multi-stand rolling mill, optionally at least one Steckel mill, a behind arranged roller table with cooling device for the rolled hot strip and at least one subsequent coiling device for coiling the finished rolled strip on the so-called coil weight. These system components are also not shown.

Figur 2 und Figur 2a zeigen die erfindungsgemäße Kompaktanlage mit Gießlinie GL und Walzlinie WL, wobei die Gießrichtung der Gießmaschine GM und die Walzrichtung im Walzwerk WW gegenläufig verlaufen. Hinter der Gießmaschine und vor dem Aufwärmofen AO ist zusätzlich ein Tunnelofen TO als Durchlaufofen angeordnet. Figur 2a zeigt, dass zusätzlich zu der Kompaktanlage gemäß Figur 2 hinter dem Aufwärmofen und vor dem Walzwerk ebenfalls ein Tunnelofen als Durchlaufofen angeordnet ist. Figure 2 and Figure 2a show the compact system according to the invention with casting line GL and rolling line WL, wherein the casting direction of the casting machine GM and the rolling direction in the rolling mill WW run in opposite directions. Behind the casting machine and before the reheating furnace AO, a tunnel kiln TO is additionally arranged as a continuous furnace. FIG. 2a shows that in addition to the compact system according to FIG. 2 behind the warm-up furnace and before the rolling mill also a tunnel furnace is arranged as a continuous furnace.

Claims (7)

  1. Device for producing hot-rolled strip according to the CSP plant concept, comprising at least one continuous casting machine, at least one cutter, at least one compensating furnace, a descaler, optionally a roughing train, a finishing train, which can be constructed as a multi-stand rolling mill (WW) or Steckel rolling mill, a roller path with cooling zone and at least one coiler for the hot strip, wherein the casting line (GL) and the rolling line (WL) are arranged parallel or approximately parallel to one another in the manner that casting direction and rolling direction are aligned substantially in opposite sense to one another, casting line (GL) and rolling line (WL) are connected together by a reheating furnace (AO) and the reheating furnace (AO) is a walking hearth furnace or a walking beam furnace.
  2. Device according to claim 1, characterised in that the spacing between the casting line (GL) and the rolling line (WL) is so designed that a sufficient dwell and storage time for the thin slabs in the reheating furnace (AO) is guaranteed.
  3. Device according to claim 1 or 2, characterised in that the reheating furnace (AO) is designed for receiving at least three slabs and at most twelve slabs.
  4. Device according to claim 1, 2 or 3, characterised in that the casting line (GL) consists of one or more casting machines (GM) or several cast strands.
  5. Device according to any one of claims 1 to 4, characterised in that the casting plane and rolling plane preferably lie at one level.
  6. Device according to any one of claims 1 to 5, characterised in that at least one continuous furnace is arranged between the casting machine (GM) and the reheating furnace (AO).
  7. Device according to any one of claim 1 to 6, characterised in that at least one continuous furnace (TO) is arranged between the rolling mill (WW) and the reheating furnace (AO).
EP04739967A 2003-07-03 2004-06-17 Device for producing a hot-rolled thermal strip, especially made of strip-type continuous casting material Revoked EP1641573B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10330210A DE10330210A1 (en) 2003-07-03 2003-07-03 Apparatus for producing hot-rolled hot strip, in particular from strip-shaped continuously cast semi-finished material
PCT/EP2004/006505 WO2005002749A2 (en) 2003-07-03 2004-06-17 Device for producing a hot-rolled thermal strip, especially made of strip-type continuous casting material

Publications (2)

Publication Number Publication Date
EP1641573A2 EP1641573A2 (en) 2006-04-05
EP1641573B1 true EP1641573B1 (en) 2008-10-22

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EP04739967A Revoked EP1641573B1 (en) 2003-07-03 2004-06-17 Device for producing a hot-rolled thermal strip, especially made of strip-type continuous casting material

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US (2) US20070200281A1 (en)
EP (1) EP1641573B1 (en)
JP (1) JP2007506554A (en)
KR (1) KR20060030100A (en)
CN (1) CN101001706A (en)
AT (1) ATE411854T1 (en)
CA (1) CA2531151A1 (en)
DE (2) DE10330210A1 (en)
EG (1) EG23997A (en)
ES (1) ES2313021T3 (en)
MX (1) MXPA06000152A (en)
MY (1) MY141107A (en)
RU (1) RU2368438C2 (en)
TW (1) TW200512050A (en)
UA (1) UA88616C2 (en)
WO (1) WO2005002749A2 (en)
ZA (1) ZA200510206B (en)

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RU2533290C2 (en) * 2013-02-25 2014-11-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Южно-Уральский государственный университет" (национальный исследовательский университет) (ФГБОУ ВПО "ЮУрГУ" (НИУ)) Production of hot-rolled strips and cast house
CN104131708A (en) * 2014-07-06 2014-11-05 曾润洪 Method for manufacturing and distributing reinforced concrete members which are made of reinforced concrete and used for bridge, culvert and channel
CN104307871B (en) * 2014-10-20 2016-06-08 中色科技股份有限公司 A kind of several casting ingot heating stoves are parallel to the explained hereafter method in hot rolling direction simultaneously
DE102015110361B4 (en) * 2015-06-26 2019-12-24 Thyssenkrupp Ag Process for producing a composite material in a rolling mill and use of the rolling mill
CN105666147B (en) * 2016-03-30 2018-10-30 潍坊东方钢管有限公司 The steel guardrail production line and production technology of epoxy zinc-base polyester composite coating
CN106121246A (en) * 2016-06-28 2016-11-16 安徽海龙建筑工业有限公司 Reinforcing bar binding flowing water technique
IT201800010870A1 (en) * 2018-12-06 2020-06-06 Danieli Off Mecc APPARATUS AND METHOD OF PRODUCTION OF TAPES
CN111958496B (en) * 2020-09-22 2024-09-20 中山市曙光铝业有限公司 Equipment for cleaning and semi-homogenizing surface of aluminum bar

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JPS57146403A (en) * 1981-03-07 1982-09-09 Kawasaki Steel Corp Hot rolling line for slab by plural continuous casting installations of different kinds
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DE3708050A1 (en) 1987-03-12 1988-09-22 Voest Alpine Ag Continuous casting installation with a rolling mill arranged on the outlet side
DE4041206C2 (en) * 1990-12-21 2003-04-17 Sms Demag Ag Process and plant for the production of hot-rolled steel strip, in particular for stainless steels from continuously cast primary material
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JPH1133601A (en) * 1997-07-16 1999-02-09 Ishikawajima Harima Heavy Ind Co Ltd Rolling equipment

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EP1641573A2 (en) 2006-04-05
ATE411854T1 (en) 2008-11-15
DE10330210A1 (en) 2005-01-20
KR20060030100A (en) 2006-04-07
MXPA06000152A (en) 2006-04-07
US20120144638A1 (en) 2012-06-14
RU2368438C2 (en) 2009-09-27
RU2006103072A (en) 2006-06-27
TW200512050A (en) 2005-04-01
CA2531151A1 (en) 2005-01-13
ES2313021T3 (en) 2009-03-01
UA88616C2 (en) 2009-11-10
US20070200281A1 (en) 2007-08-30
MY141107A (en) 2010-03-15
ZA200510206B (en) 2006-08-30
WO2005002749A2 (en) 2005-01-13
CN101001706A (en) 2007-07-18
EG23997A (en) 2008-03-16
DE502004008324D1 (en) 2008-12-04
JP2007506554A (en) 2007-03-22
WO2005002749A3 (en) 2005-03-31

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