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EP0765696A1 - Device for keeping cold rolled strip dry on the outlet of cold rolling and strip plants - Google Patents

Device for keeping cold rolled strip dry on the outlet of cold rolling and strip plants Download PDF

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Publication number
EP0765696A1
EP0765696A1 EP96114531A EP96114531A EP0765696A1 EP 0765696 A1 EP0765696 A1 EP 0765696A1 EP 96114531 A EP96114531 A EP 96114531A EP 96114531 A EP96114531 A EP 96114531A EP 0765696 A1 EP0765696 A1 EP 0765696A1
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EP
European Patent Office
Prior art keywords
strip
belt
outlet
designed
parts
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
EP96114531A
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German (de)
French (fr)
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EP0765696B1 (en
Inventor
Dieter Daub
Wolfgang Denker
Joachim Schmelzer
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SMS Siemag AG
Original Assignee
SMS Schloemann Siemag AG
Schloemann Siemag AG
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Publication of EP0765696A1 publication Critical patent/EP0765696A1/en
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    • 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
    • B21B45/02—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 for lubricating, cooling, or cleaning
    • B21B45/0269—Cleaning
    • B21B45/0275—Cleaning devices
    • B21B45/0278—Cleaning devices removing liquids
    • 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
    • B21B45/02—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 for lubricating, cooling, or cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/06—Lubricating, cooling or heating rolls
    • B21B27/10—Lubricating, cooling or heating rolls externally

Definitions

  • the preferred quality requirements that manufacturers place on the "cold strip” product also include dryness of the strip in the outlet of cold rolling and strip lines in order to avoid surface defects, such as stains, for further processing of the strip .
  • DE 44 22 422 A1 discloses a device for the contact-free sealing of a gap between a partition and a work roll in the outlet of a roll stand, with the following features: a) the partition has an end-side partition element which is approximately tangential to the surface of the work roll and is arranged at a relatively short distance from this and from the surface of the rolling stock; b) the partitioning element has at least one connected to a compressed air source Supply channel for compressed air, which opens into a gap nozzle extending in the direction of the roll axis at a short distance along the roll surface; c) between the blow-out direction of the gap nozzle and a normal extending from the nozzle mouth to the axis of rotation of the work roll, there is an angle which is in the direction of rotation of the roll between 0 and 45 °, preferably 30 °; d) the end-side partitioning element has on its front side an approximately tangential and at a short distance from the roller surface, tapered end part, which is designed and arranged in
  • a device in order to obtain a cold strip that is really free of interfering moisture, a device must be equipped with such complex means to simultaneously detect and compensate for all causes of the precipitation of moisture on the surface of the strip that is running out.
  • the invention is based on the object of specifying a simple device which can be produced from rolling mill-compatible components and which is capable of reliably avoiding or removing moisture precipitation on the strip surface in the outlet from cold rolling and strip systems, and with reasonable expenditure of components and energy can be created and can be arranged without problems in the area of the outlet of a roll stand, does not interfere with roll changes and roll gap adjustment and generates a comparatively low noise level.
  • An additional movable partition consisting of movable parts ensures further partitioning of the wet-wet roll area against the finished rolled strip, but enables the rolls to be advantageously accessible due to the mobility of the parts, for example when carrying out a roll change.
  • these moving parts perform the function of a band deflector and / or a means for band transfer.
  • the movable parts designed as stops can be either mechanically fixed or adjustable depending on the roll barrel.
  • the cover of the tape channel can be opened to make the tape more accessible, for example after tape breaks.
  • the device can be produced very advantageously from simple components suitable for the rolling mill and optimally fulfills the intended function with a reasonable amount of energy, namely a cold strip which runs out of the roll stand in a really dry manner.
  • the figure shows two support rollers (31, 32) and a few work rollers (33, 34) between them, leaving out the actual rolling stand.
  • a roll gap (12) is set between them.
  • the parts (20, 21) of the movable partition can advantageously be designed to be pivotable but also linearly displaceable. They are designed with the double link arrangement (24) and a force means (22) so that the bale blow-off (3) integrated with the movable part (20) and the bale gap seal (4) and the band edge blow-off (5) can at the same time be lifted from the effective position shown in the figure in the region of the work roll (33).
  • the power means (22) is preferably a pneumatic cylinder; but it can also be a hydraulic cylinder or an electric actuator.
  • the movable part (21) with the power means (23) can be pivoted about the axis (25).
  • the upper cover (15) of the band channel (14) can be opened. Due to the movable design of the elements of the movable partition and the cover (15) of the belt channel (14), the accessibility, in particular of the work rolls (33, 34) and the roll gap (12) and the belt (30), is ensured without any problems and in particular without time-consuming conversion measures .
  • the device can preferably cooperate with a roll gap lubrication that is dependent on the bandwidth, specifically regardless of axially fixed or displaceable or also crossed rolls.
  • the device is designed in such a way that it reliably prevents moisture in the form of drops or vapor precipitation from falling back onto the belt (30) and thus optimizes the belt quality.
  • One of the decisive factors for this is the in suction flow generated in the opposite direction to the belt running direction (13) in the belt channel (14) by the vapor extraction (6) in cooperation with the bale gap seal (4) and the bale blow-off (3) in the roller chamber (11) above the belt (30).
  • the device forms a functional unit or a system of simple and rolling mill-compatible components and results in a dry strip with a reasonable amount of energy.
  • the invention optimally fulfills the task set out above.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Drying Of Solid Materials (AREA)
  • Greenhouses (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)

Abstract

System for maintaining the dry condition of cold rolled strip having a screen (1, 2) whose upper part (1) forms a barrier above the strip path (100 as far as the frame platform and whose lower part (2) forms a barrier below the strip path as far as the base plate. Movable sections (20 21) facilitate the change-over of the rollers. A blower (3) diverts the squeezed out rolling medium from the finished rolling strip (30) with a seal (4) to close the gap (11) against the strip and a bower (5) to give a flow of air for the roller gap (12).

Description

Zu den bevorzugten Qualitätsanforderungen, die von den Herstellern an das Produkt "Kaltband" gestellt werden, gehört außer guter Planheit und optimaler Dickentoleranz auch Trockenheit des Bandes im Auslauf von Kaltwalz- und Bandanlagen, um für die Weiterverarbeitung des Bandes Obenflächenfehler, beispielsweise Flecken, zu vermeiden.In addition to good flatness and optimum thickness tolerance, the preferred quality requirements that manufacturers place on the "cold strip" product also include dryness of the strip in the outlet of cold rolling and strip lines in order to avoid surface defects, such as stains, for further processing of the strip .

Beim Stand der Technik sind unterschiedliche Vorrichtungen und Maßnahmen bekannt, mit dem Ziel, von Nässe und Walzmedium freies, trockenes Band zu erreichen. Hierfür werden fallweise Abblasungen, Abschottungen, Absaugungen sowie Kombinationen dieser Vorrichtungen und Maßnahmen eingesetzt.Various devices and measures are known in the prior art with the aim of achieving a dry strip free of moisture and rolling medium. Blow-offs, partitions, suction systems and combinations of these devices and measures are used occasionally for this.

Beispielsweise ist aus der DE 44 22 422 A1 eine Vorrichtung zum berührungsfreien Abdichten eines Spaltes zwischen einer Abschottung und einer Arbeitswalze im Auslauf eines Walzgerüstes bekannt, mit den folgenden Merkmalen: a) die Abschottung weistein endseitiges Abschottungselement auf, welches annähernd tangential zur Oberfläche der Arbeitswalze und in relativ geringem Abstand zu dieser sowie zur Oberfläche des Walzgutes angeordnet ist; b) das Abschottungselement weist wenigstens einen an eine Druckluftquelle angeschlossenen Zufuhrkanal für Druckluft auf, welcher in eine sich in Richtung der Walzenachse in geringem Abstand entlang der Walzenoberfläche erstreckende Spaltdüse einmündet; c) zwischen der Ausblasrichtung der Spaltdüse und einer von der Düsenmündung zur Rotationsachse der Arbeitswalze verlaufenden Normalen ergibt sich ein Winkel, der in Drehrichtung der Walze zwischen 0 und 45°, vorzugsweise 30° beträgt; d) das endseitige Abschottungselement weist an seiner Vorderseite ein annähernd tangential und mit geringem Abstand zur Walzenoberfäche angeordnetes, sich schneidenartig verjüngendes Endteil auf, welches derart ausgebildet und angeordnet ist, daß sich zwischen diesem und der Walzenoberfläche nach Art eines Injektors ein im Querschnitt stetig erweiternder Strömungskanal bildet, der sich zumindest in der Breite des Walzgutes achsparallel zur Arbeitswalze erstreckt.For example, DE 44 22 422 A1 discloses a device for the contact-free sealing of a gap between a partition and a work roll in the outlet of a roll stand, with the following features: a) the partition has an end-side partition element which is approximately tangential to the surface of the work roll and is arranged at a relatively short distance from this and from the surface of the rolling stock; b) the partitioning element has at least one connected to a compressed air source Supply channel for compressed air, which opens into a gap nozzle extending in the direction of the roll axis at a short distance along the roll surface; c) between the blow-out direction of the gap nozzle and a normal extending from the nozzle mouth to the axis of rotation of the work roll, there is an angle which is in the direction of rotation of the roll between 0 and 45 °, preferably 30 °; d) the end-side partitioning element has on its front side an approximately tangential and at a short distance from the roller surface, tapered end part, which is designed and arranged in such a way that between it and the roller surface, in the manner of an injector, a flow channel that continuously widens in cross section forms, which extends at least in the width of the rolling stock axially parallel to the work roll.

Vielfach sind bekannte Vorrichtungen und Maßnahmen zur Erzeugung von trockenem Band sehr energieaufwendig, kompliziert und sowohl beim Walzenwechsel als auch bei der Einstellung des Walzspaltes hinderlich und entwickeln einen störenden Geräuschpegel.In many cases, known devices and measures for producing dry strip are very energy-intensive, complicated, and both when changing the roll and when setting the roll gap, they are a hindrance and develop a disturbing noise level.

Fallweise wurde auch eine ausreichende Entfernung der unerwünschten Feuchtigkeit von der Bandoberfläche und damit ein den Erfordernissen entsprechend trockenes Kaltband deshalb nicht erreicht, weil die Ursachen für den Niederschlag und/oder das Mitschleppen von Feuchtigkeit auf der Bandoberfläche nicht ausreichend beachtet wurden. Es handelt sich hierbei folgende Ursachen:

  • Walzmedium wird von den Walzen mitgeschleppt und auf das auslaufende Band geschleudert,
  • Walzmedium spritzt neben der Bandkante durch den Walzspalt und gelangt so wieder auf das Band,
  • Dunst im Auslaufbereich der Anlage kondensiert und tropft auf das Band.
Occasionally, sufficient removal of the undesired moisture from the strip surface and therefore a cold strip that was dry according to the requirements was not achieved because the causes for the precipitation and / or entrainment of moisture on the strip surface were not sufficiently taken into account. The causes are as follows:
  • Rolling medium is dragged along by the rollers and hurled onto the outgoing strip,
  • Rolled medium sprays through the roll gap next to the strip edge and thus reaches the strip again,
  • Haze condenses in the outlet area of the system and drips onto the belt.

Um dagegen ein von störender Feuchtigkeit wirklich freies Kaltband zu erhalten, muß eine Vorrichtung mit so komplexen Mitteln ausgestattet sein, um gleichzeitig alle Ursachen für den Niederschlag von Feuchtigkeit auf der Oberfläche des auslaufenden Bandes zu erfassen und zu kompensieren.On the other hand, in order to obtain a cold strip that is really free of interfering moisture, a device must be equipped with such complex means to simultaneously detect and compensate for all causes of the precipitation of moisture on the surface of the strip that is running out.

Der Erfindung liegt ausgehend von diesem Stand der Technik die Aufgabe zugrunde, eine einfache und aus walzwerksgerechten Bauelementen erstellbare Vorrichtung anzugeben, welche in der Lage ist, Feuchtigkeitsniederschlag auf der Bandoberfläche im Auslauf von Kaltwalz- und Bandanlagen zuverlässig zu vermeiden oder zu entfernen, und die mit vertretbarem Aufwand an Bauelementen und Energie erstellbar und im Bereich des Auslaufs eines Walzgerüstes problemlos anordenbar ist, bei Walzenwechsel und Walzspalteinstellung nicht stört und einen vergleichsweise niedrigen Geräuschpegel erzeugt.Based on this prior art, the invention is based on the object of specifying a simple device which can be produced from rolling mill-compatible components and which is capable of reliably avoiding or removing moisture precipitation on the strip surface in the outlet from cold rolling and strip systems, and with reasonable expenditure of components and energy can be created and can be arranged without problems in the area of the outlet of a roll stand, does not interfere with roll changes and roll gap adjustment and generates a comparatively low noise level.

Die Lösung der gestellten Aufgabe gelingt bei einer Vorrichtung der im Oberbegriff von Anspruch 1 gennanten Art mit der Erfindung durch die im Kennzeichnungsteil von Anspruch 1 angegebenen Merkmale.The object is achieved in a device of the type mentioned in the preamble of claim 1 with the invention by the features specified in the characterizing part of claim 1.

Mit Vorteil wird durch eine fest installierte Abschottung, deren einer Teil oberhalb des Bandlaufs bis an die Gerüstbühne und deren anderer Teil unterhalb des Bandlaufs bis an die Grundplatte anschließt, der feucht-nasse Walzenbereich gegen das fertiggewalzte Band abgeschottet.It is advantageous to have a permanently installed partition, one part above the belt run to the scaffolding platform and the other part below the belt run to the Base plate connects, the wet and wet roller area is sealed off from the finished strip.

Eine zusätzliche und aus beweglichen Teilen bestehende bewegliche Abschottung sorgt für weitergehende Abschottung des feucht-nassen Walzenbereichs gegen das fertiggewalzte Band, ermöglicht jedoch infolge der Beweglichkeit der Teile eine vorteilhafte Zugänglichkeit der Walzen beispielsweise bei der Durchführung eines Walzenwechsels. Zugleich verwirklichen diese beweglichen Teile die Funktion eines Bandabweisers und/oder eines Mittels zur Bandüberleitung. Die als Anschläge ausgebildeten beweglichen Teile können dabei wahlweise mechanisch fest oder walzenballen-abschliffabhängig einstellbar sein.An additional movable partition consisting of movable parts ensures further partitioning of the wet-wet roll area against the finished rolled strip, but enables the rolls to be advantageously accessible due to the mobility of the parts, for example when carrying out a roll change. At the same time, these moving parts perform the function of a band deflector and / or a means for band transfer. The movable parts designed as stops can be either mechanically fixed or adjustable depending on the roll barrel.

Die Ballenabblasung verhindert, daß abgequetschtes Walzmedium auf das fertig gewalzte Band übertragen wird;

  • die Ballenspaltabdichtung dichtet den oberhalb des Bandes gelegenen Walzenraum gegen das fertiggewalzte Band ab;
  • die Bandkantenabblasung erzeugt eine zum Band rechtwinklige Strömung im auslaufsseitigen Walzspalt oberhalb des Bandlaufes und lenkt das mitgerissene Walzöl seitlich der Bandkanten vom Band ab;
  • die Absaugung im Bandkanal saugt mit einer oberhalb und unterhalb des Bandlaufes parallelen Luftgegenströmung den gesamten oberhalb und unterhalb des Bandes entstehenden Dunst ab. Hierfür ist die Absaugleistung so ausgelegt, daß ein Vielfaches des Luftvolumens und der entstehende Dunst mit abgesaugt wird.
The bale blow-off prevents crushed rolling medium from being transferred to the finished rolled strip;
  • the bale gap seal seals the roll space above the strip against the finished strip;
  • the strip edge blow-off creates a flow perpendicular to the strip in the roll gap on the outlet side above the strip run and deflects the entrained rolling oil to the side of the strip edges from the strip;
  • the suction in the belt duct sucks off all the mist that arises above and below the belt with a parallel air flow above and below the belt run. For this purpose, the suction power is designed so that a multiple of the air volume and the resulting haze are also extracted.

Die Abdeckung des Bandkanals ist aufklappbar, um die Zugänglichkeit des Bandes z.B. nach Bandrissen zu erleichtern.The cover of the tape channel can be opened to make the tape more accessible, for example after tape breaks.

Das synergistische Zusammenwirken dieser einzelnen Elemente sowie deren speziell für den vorliegenden Anwendungsfall aufeinander abgestimmte und ausgelegte Wirkungsweise bildet den wesentlichen Bestandteil als Kern der Erfindung. Dabei ist die Vorrichtung sehr vorteilhaft aus einfachen und walzwerksgerechten Bauelementen herstellbar und erfüllt mit vertretbarem Energieaufwand in optimaler Weise die vorgesehene Funktion, nämlich ein wirklich trocken aus dem Walzgerüst auslaufendes Produkt Kaltband.The synergistic interaction of these individual elements, as well as their mode of action, which is specifically coordinated and designed for the present application, forms the essential component as the core of the invention. The device can be produced very advantageously from simple components suitable for the rolling mill and optimally fulfills the intended function with a reasonable amount of energy, namely a cold strip which runs out of the roll stand in a really dry manner.

Weitere Ausgestaltungen sind entsprechend den Unteransprüchen vorgesehen.Further refinements are provided in accordance with the subclaims.

In der Zeichnung ist ein schematisches Ausführungsbeispiel der Erfindung - dem sogenannten DS-System = Dry-Strip-System - gezeigt, wobei aus der Figur weitere vorteilhafte Einzelheiten entnehmbar sind.The drawing shows a schematic exemplary embodiment of the invention - the so-called DS system = dry-strip system - with further advantageous details being evident from the figure.

Die Figur zeigt unter Weglassung des eigentlichen Walzgerüstes zwei Stützwalzen (31, 32) und zwischen diesen ein paar Arbeitswalzen (33, 34). Zwischen diesen ist ein Walzspalt (12) eingestellt.The figure shows two support rollers (31, 32) and a few work rollers (33, 34) between them, leaving out the actual rolling stand. A roll gap (12) is set between them.

Die Vorrichtung zum Trockenhalten von Kaltband im Auslauf von Kaltwalz- und Bandanlagen weist zusammenwirkende Mittel zum Abweisen von Walzmedium und Feuchtigkeit im Bereich des Bandauslaufs (10) und/oder zum Entfernen an Oberflächen des Bandes (30) anhaftender Spritz- oder Sprühflüssigkeit auf. Die Vorrichtung ist gekennzeichnet durch eine logistische Zuordnung dieser Mittel im Zusammenwirken zu einer synergistischen Funktionseinheit. Diese umfaßt folgende Vorrichtungsteile:

  • a) eine fest installierte Abschottung (1, 2), deren Teil (1) oberhalb des Bandlaufs (10) bis an die Gerüstbühne und deren Teil (2) unterhalb des Bandlaufs (10) bis an die Grundplatte anschließt,
  • b) eine mit den beweglichen Teilen (20, 21) oberhalb und unterhalb des Bandlaufs (10) zur Ermöglichung eines problemlosen Walzenwechsels ausgebildete bewegliche Abschottung,
  • c) eine zum Abweisen von abgequetschtem Walzmedium vom fertiggewalzten Band (30) ausgebildete Ballenabblasung (3),
  • d) eine zur Abdichtung des oberhalb vom Band (30) gelegenen Walzenraumes (11) gegen das Band (30) ausgebildete Ballenspaltabdichtung (4),
  • e) eine zur Erzeugung einer zum Band (30) rechtwinkligen Luftströmung im auslaufseitigen Walzspalt (12) oberhalb des Bandlaufs (10) ausgebildete Bandkantenabblasung (5),
  • f) eine zur Erzeugung einer parallelen Luftgegenströmung gegen die Bandlaufrichtung (13) oberhalb und unterhalb des Bandes (30) im Bandkanal (14) ausgebildete Dunstabsaugung (6).
The device for keeping cold strip in the outlet of cold rolling and strip systems has cooperating means for repelling rolling medium and moisture in the region of the strip outlet (10) and / or for removing spray or spray liquid adhering to surfaces of the strip (30). The device is characterized by a logistical assignment of these means in cooperation with a synergistic functional unit. This includes the following Device parts:
  • a) a permanently installed partition (1, 2), the part (1) of which is connected above the belt run (10) to the scaffolding platform and the part (2) of which is below the belt run (10) to the base plate,
  • b) a movable partition formed with the movable parts (20, 21) above and below the belt run (10) to enable problem-free roll change,
  • c) a bale blow-off (3) designed to repel squeezed rolling medium from the finished rolled strip (30),
  • d) a bale gap seal (4) designed to seal the roller space (11) located above the belt (30) against the belt (30),
  • e) a strip edge blow-off (5) designed to generate an air flow perpendicular to the strip (30) in the outlet-side roll gap (12) above the strip run (10),
  • f) an extractor (6) designed to generate a parallel air counterflow against the belt running direction (13) above and below the belt (30) in the belt channel (14).

Mit Vorteil können die Teile (20, 21) der beweglichen Abschottung schwenkbar aber auch linear verschiebbar ausgebildet sein. Sie sind mit der Doppellenkeranordnung (24) und einem Kraftmittel (22) so ausgebildet, daß die mit dem beweglichem Teil (20) integrierte Ballenabblasung (3) sowie die Ballenspaltabdichtung (4) und die Bandkantenabblasung (5) zugleich von der in der Figur dargestellten wirksamen Position im Bereich der Arbeitswalze (33) von dieser abgehoben werden können. Das Kraftmittel (22) ist bevorzugt ein Pneumatikzylinder; es kann aber auch ein Hydraulikzylinder oder ein elektrischer Stellantrieb sein.The parts (20, 21) of the movable partition can advantageously be designed to be pivotable but also linearly displaceable. They are designed with the double link arrangement (24) and a force means (22) so that the bale blow-off (3) integrated with the movable part (20) and the bale gap seal (4) and the band edge blow-off (5) can at the same time be lifted from the effective position shown in the figure in the region of the work roll (33). The power means (22) is preferably a pneumatic cylinder; but it can also be a hydraulic cylinder or an electric actuator.

Ähnlich ist unterhalb des Bandlaufs (10) das bewegliche Teil (21) mit dem Kraftmittel (23) um die Achse (25) schwenkbar.Similarly, below the belt run (10), the movable part (21) with the power means (23) can be pivoted about the axis (25).

Und weiterhin ist die obere Abdeckung (15) des Bandkanals (14) aufklappbar. Durch die bewegliche Ausbildung der Elemente der beweglichen Abschottung sowie der Abdeckung (15) des Bandkanals (14) ist die Zugänglichkeit insbesondere der Arbeitswalzen (33, 34) und des Walzspaltes (12) sowie des Bandes (30) problemlos und insbesondere ohne zeitaufwendige Umbaumaßnahmen gewährleistet.Furthermore, the upper cover (15) of the band channel (14) can be opened. Due to the movable design of the elements of the movable partition and the cover (15) of the belt channel (14), the accessibility, in particular of the work rolls (33, 34) and the roll gap (12) and the belt (30), is ensured without any problems and in particular without time-consuming conversion measures .

Es ist ersichtlich, daß die Kombination aller Elemente der Vorrichtung sowie deren speziell für den vorliegenden Anwendungsfall ausgelegte synergistische Wirkungsweise das wesentliche Merkmal der Erfindung bildet.It can be seen that the combination of all elements of the device and their synergistic mode of operation, which is specifically designed for the present application, forms the essential feature of the invention.

Die Vorrichtung kann bevorzugt mit einer bandbreitenabhängigen Walzspaltschmierung zusammenarbeiten, und zwar unabhängig von axial festliegenden oder verschiebbaren oder auch gekreuzten Walzen.The device can preferably cooperate with a roll gap lubrication that is dependent on the bandwidth, specifically regardless of axially fixed or displaceable or also crossed rolls.

Die Vorrichtung ist so ausgelegt, daß sie ein Zurückfallen von Feuchtigkeit in Form von Tropfen oder Dunstniederschlag auf das Band (30) sicher verhindert und somit die Bandqualität optimiert. Hierfür entscheidend ist u.a. die in entgegengesetzter Richtung zur Bandlaufrichtung (13) im Bandkanal (14) erzeugte Absaugströmung durch die Dunstabsaugung (6) im Zusammenwirken mit der Ballenspaltabdichtung (4) sowie der Ballenabblasung (3) im Walzenraum (11) oberhalb des Bandes (30).The device is designed in such a way that it reliably prevents moisture in the form of drops or vapor precipitation from falling back onto the belt (30) and thus optimizes the belt quality. One of the decisive factors for this is the in suction flow generated in the opposite direction to the belt running direction (13) in the belt channel (14) by the vapor extraction (6) in cooperation with the bale gap seal (4) and the bale blow-off (3) in the roller chamber (11) above the belt (30).

Die Vorrichtung bildet eine Funktionseinheit bzw. ein System aus einfachen und walzwerksgerechten Bauelementen und ergibt mit vertretbarem Energieaufwand ein trockenes Band. Insofern erfüllt die Erfindung in optimaler Weise die eingangs gestellte Aufgabe.The device forms a functional unit or a system of simple and rolling mill-compatible components and results in a dry strip with a reasonable amount of energy. In this respect, the invention optimally fulfills the task set out above.

Claims (8)

Vorrichtung zum Trockenhalten von Kaltband im Auslauf von Kaltwalz- und Bandanlagen mit Mitteln zum Abweisen von flüssigem Walzmedium im Bereich des Bandauslaufs und/oder zum Entfernen an Oberflächen des Bandes (30) anhaftender Spritz- oder Sprühflüssigkeit, gekennzeichnet durch eine logistische Zuordnung dieser Mittel im Zusammenwirken zu einer Funktionseinheit, wobei diese die folgenden Vorrichtungsteile umfaßt: a) eine fest installierte Abschottung (1, 2), deren Teil (1) oberhalb des Bandauslaufs (10) bis an die Gerüstbühne und deren Teil (2) unterhalb des Bandauslaufs (10) bis an die Grundplatte anschließt, b) eine mit beweglichen Teilen (20, 21) zur Ermöglichung eines problemlosen Walzenwechsels ausgebildete bewegliche Abschottung, c) eine zum Abweisen von abgequetschtem Walzmedium vom fertiggewalzten Band (30) ausgebildete Ballenabblasung (3), d) eine zur Abdichtung des oberhalb vom Band (30) gelegenen Walzenraumes (11) gegen das Band (30) ausgebildete Ballenspaltabdichtung (4), e) eine zur Erzeugung einer zum Band (30) rechtwinkligen Luftströmung im auslaufseitigen Walzspalt (12) oberhalb des Bandlaufs (10) ausgebildete Bandkantenabblasung (5), f) eine zur Erzeugung einer gegen die Bandlaufrichtung (13) gerichteten parallelen Luftströmung oberhalb und unterhalb des Bandes (30) im Bandkanal (14) ausgebildete Dunstabsaugung (6). Device for keeping cold strip in the outlet of cold rolling and strip systems with means for repelling liquid rolling medium in the region of the strip outlet and / or for removing spray or spray liquid adhering to surfaces of the strip (30), characterized by a logistical assignment of these means in cooperation to a functional unit, which comprises the following device parts: a) a permanently installed partition (1, 2), the part (1) of which is connected above the belt outlet (10) to the scaffolding platform and the part (2) of which is below the belt outlet (10) to the base plate, b) a movable partition formed with movable parts (20, 21) to enable a problem-free roll change, c) a bale blow-off (3) designed to repel squeezed rolling medium from the finished rolled strip (30), d) a bale gap seal (4) designed to seal the roller space (11) located above the belt (30) against the belt (30), e) a strip edge blow-off (5) designed to generate an air flow perpendicular to the strip (30) in the outlet-side roll gap (12) above the strip run (10), f) a fume extractor (6) designed to produce a parallel air flow directed against the belt running direction (13) above and below the belt (30) in the belt channel (14). Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Teile (20, 21) der beweglichen Abschottung schwenkbar sind.Device according to claim 1, characterized in that the parts (20, 21) of the movable partition are pivotable. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Teile (20, 21) der beweglichen Abschottung linear verfahrbar sind.Device according to claim 1, characterized in that the parts (20, 21) of the movable partition can be moved linearly. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß wenigstens ein Teil (21) der beweglichen Abschottung als Bandabweiser bzw. Bandüberleiter ausgebildet ist.Device according to claim 1, characterized in that at least a part (21) of the movable partition is designed as a band deflector or band transfer device. Vorrichtung nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß zur Bewegung der Teile (20, 21) Zylinder (22, 23) vorgesehen sind.Device according to one or more of claims 1 to 4, characterized in that cylinders (22, 23) are provided for moving the parts (20, 21). Vorrichtung nach einem oder mehreren der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Ballenabblasung (3) die Ballenspaltabdichtung (4) und die Bandkantenabblasung (5) mit dem Teil (20) der beweglichen Abschottung integriert ist.Device according to one or more of claims 1 to 5, characterized in that the bale blow-off (3), the bale gap seal (4) and the band edge blow-off (5) are integrated with the part (20) of the movable partition. Vorrichtung nach einem oder mehreren der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Bandkanal (14) mit einer aufklappbaren oberen Abdeckung (15) ausgebildet ist.Device according to one or more of claims 1 to 6, characterized in that the band channel (14) is designed with a hinged upper cover (15). Vorrichtung nach einem oder mehreren der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß ihr eine bandbreitenabhängige Walzspaltschmierung zugeordnet ist.Device according to one or more of claims 1 to 7, characterized in that it is associated with a roll gap lubrication which is dependent on the bandwidth.
EP96114531A 1995-09-22 1996-09-11 Device for keeping cold rolled strip dry on the outlet of cold rolling and strip plants Expired - Lifetime EP0765696B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19535168 1995-09-22
DE19535168A DE19535168A1 (en) 1995-09-22 1995-09-22 Device for keeping cold strip dry in the outlet of cold rolling and strip lines

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EP0765696A1 true EP0765696A1 (en) 1997-04-02
EP0765696B1 EP0765696B1 (en) 1999-11-10

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US (1) US5775152A (en)
EP (1) EP0765696B1 (en)
JP (1) JP4372234B2 (en)
KR (1) KR100441849B1 (en)
AT (1) ATE186480T1 (en)
DE (2) DE19535168A1 (en)
ES (1) ES2140003T3 (en)
GR (1) GR3032352T3 (en)

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WO2003068426A1 (en) * 2002-02-15 2003-08-21 Sms Demag Aktiengesellschaft Device for keeping a cold-rolled strip dry in the outlet of strip rolling mills
WO2006063779A1 (en) * 2004-12-14 2006-06-22 Sms Demag Ag Method and device for strip blowing-off at the exit from a rolling mill for the production of a spot-free and clean rolled strip
WO2007022842A1 (en) * 2005-08-20 2007-03-01 Sms Demag Ag Rolling installation
CN102671948A (en) * 2012-05-04 2012-09-19 中冶南方工程技术有限公司 Process for leveling liquid films
CN103203375A (en) * 2012-01-12 2013-07-17 宝山钢铁股份有限公司 Purge system of cold rolling wet temper mill
CN104203441A (en) * 2012-02-02 2014-12-10 西马克·西马格公司 Device for straightening a flow for cooling a roll or a metal strip
DE102014222530A1 (en) 2014-05-05 2015-11-05 Sms Group Gmbh Band deflector and roller assembly
CN106734265A (en) * 2017-01-09 2017-05-31 中冶南方工程技术有限公司 The wet jetting piles pattern planisher strip cleaning device and its method of high-speed rolling
WO2017118563A1 (en) * 2016-01-07 2017-07-13 Sms Group Gmbh Device for conducting away a fluid from an object
CN111389922A (en) * 2020-03-05 2020-07-10 南京钢铁股份有限公司 Method for solving water leakage of wide and thick plate CVC roller

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DE19908743A1 (en) 1999-03-01 2000-09-07 Sms Demag Ag Method and device for drying and keeping dry, in particular, cold strip in the outlet area of cold rolling and strip systems
DE102008019548A1 (en) 2008-04-18 2009-10-22 Sms Siemag Aktiengesellschaft Rolling mill, particularly hot rolling mill, for rolling strip with each of multiple working rolls, has rolling stands and strip outlet area at last rolling stand, where medium is provided for non-contact transferring of strips
DE102009023359A1 (en) 2008-08-18 2010-02-25 Sms Siemag Ag Method and device for cooling and drying a hot strip or sheet in a rolling mill
CN102671965B (en) * 2012-05-04 2015-01-28 中冶南方工程技术有限公司 Active airflow field controlled plate surface cleaning device for single stand cold rolling
CN102671968B (en) * 2012-05-04 2014-09-10 中冶南方工程技术有限公司 Active flow field controlling type five-machine-frame cold-rolling continuous-rolling board surface cleaning method
CN102671974B (en) * 2012-05-04 2015-04-15 中冶南方工程技术有限公司 Active airflow field control type wet planished plate surface cleaning method
CN102671971B (en) * 2012-05-04 2015-04-15 中冶南方工程技术有限公司 Active airflow field controlled plate surface cleaning device
CN102671966B (en) * 2012-05-04 2014-11-05 中冶南方工程技术有限公司 Active air flow filed control type double-rack mill panel cleaning method
CN102671976B (en) * 2012-05-04 2015-04-15 中冶南方工程技术有限公司 Active airflow field controlled plate surface cleaning method for single stand cold rolling
CN102671969B (en) * 2012-05-04 2015-01-28 中冶南方工程技术有限公司 Active airflow field controlled plate surface cleaning device for double stand cold rolling
CN102671970B (en) * 2012-05-04 2015-01-28 中冶南方工程技术有限公司 Active flow field controlling type wet leveling board surface cleaning device
CN102671967B (en) * 2012-05-04 2015-01-28 中冶南方工程技术有限公司 Active air flow field control type five-rack cold rolling tandem rolling panel cleaning device
CN104209326B (en) * 2014-09-10 2016-09-21 中冶南方工程技术有限公司 Emulsion partition apparatus in smooth double cold mill complex
CN108465706A (en) * 2018-03-15 2018-08-31 包头钢铁（集团）有限责任公司 The control method of emulsion sweep module and emulsion sweep module
CN113579003B (en) * 2021-05-06 2023-06-23 中冶南方工程技术有限公司 Levelling machine and purging process thereof
CN113664058A (en) * 2021-07-13 2021-11-19 中冶南方工程技术有限公司 Finishing machine and process optimization method thereof

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Cited By (16)

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Publication number Priority date Publication date Assignee Title
WO2003068426A1 (en) * 2002-02-15 2003-08-21 Sms Demag Aktiengesellschaft Device for keeping a cold-rolled strip dry in the outlet of strip rolling mills
CN1298445C (en) * 2002-02-15 2007-02-07 Sms迪马格股份公司 Device for keeping a cold-rolled strip dry in the outlet of strip rolling mills
WO2006063779A1 (en) * 2004-12-14 2006-06-22 Sms Demag Ag Method and device for strip blowing-off at the exit from a rolling mill for the production of a spot-free and clean rolled strip
WO2007022842A1 (en) * 2005-08-20 2007-03-01 Sms Demag Ag Rolling installation
US8186198B2 (en) 2005-08-20 2012-05-29 Sms Siemag Aktiengesellschaft Rolling installation
CN103203375B (en) * 2012-01-12 2016-04-27 宝山钢铁股份有限公司 A kind of cold milling wet leveling machine purging system
CN103203375A (en) * 2012-01-12 2013-07-17 宝山钢铁股份有限公司 Purge system of cold rolling wet temper mill
CN104203441A (en) * 2012-02-02 2014-12-10 西马克·西马格公司 Device for straightening a flow for cooling a roll or a metal strip
CN102671948B (en) * 2012-05-04 2014-12-17 中冶南方工程技术有限公司 Process for leveling liquid films
CN102671948A (en) * 2012-05-04 2012-09-19 中冶南方工程技术有限公司 Process for leveling liquid films
DE102014222530A1 (en) 2014-05-05 2015-11-05 Sms Group Gmbh Band deflector and roller assembly
WO2017118563A1 (en) * 2016-01-07 2017-07-13 Sms Group Gmbh Device for conducting away a fluid from an object
DE102016204501B4 (en) 2016-01-07 2023-08-10 Sms Group Gmbh Device for draining a fluid from an object
CN106734265A (en) * 2017-01-09 2017-05-31 中冶南方工程技术有限公司 The wet jetting piles pattern planisher strip cleaning device and its method of high-speed rolling
CN106734265B (en) * 2017-01-09 2018-08-17 中冶南方工程技术有限公司 The wet jetting piles pattern planisher strip cleaning device and its method of high-speed rolling
CN111389922A (en) * 2020-03-05 2020-07-10 南京钢铁股份有限公司 Method for solving water leakage of wide and thick plate CVC roller

Also Published As

Publication number Publication date
ES2140003T3 (en) 2000-02-16
DE59603617D1 (en) 1999-12-16
US5775152A (en) 1998-07-07
DE19535168A1 (en) 1997-03-27
GR3032352T3 (en) 2000-04-27
ATE186480T1 (en) 1999-11-15
KR970014860A (en) 1997-04-28
JP4372234B2 (en) 2009-11-25
JPH09122738A (en) 1997-05-13
EP0765696B1 (en) 1999-11-10
KR100441849B1 (en) 2004-09-23

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