EP0765696B1 - 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
EP0765696B1
EP0765696B1 EP96114531A EP96114531A EP0765696B1 EP 0765696 B1 EP0765696 B1 EP 0765696B1 EP 96114531 A EP96114531 A EP 96114531A EP 96114531 A EP96114531 A EP 96114531A EP 0765696 B1 EP0765696 B1 EP 0765696B1
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EP
European Patent Office
Prior art keywords
strip
outlet
roll
constructed
parts
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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.)
Expired - Lifetime
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EP96114531A
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German (de)
French (fr)
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EP0765696A1 (en
Inventor
Dieter Daub
Wolfgang Denker
Joachim Schmelzer
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SMS Siemag AG
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SMS Schloemann Siemag AG
Schloemann Siemag AG
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Publication of EP0765696A1 publication Critical patent/EP0765696A1/en
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Classifications

    • 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

  • DE 44 22 422 A1 describes a device for contactless sealing of a gap between one Foreclosure and a work roll in the outlet of a Roll stand known with the following features: a) the Partitioning has an end-side partitioning element, which is approximately tangential to the surface of the work roll and at a relatively short distance from it and from the surface the rolling stock is arranged; b) the partitioning element has at least one connected to a compressed air source Supply channel for compressed air, which is in a Direction of the roller axis at a short distance along the The slit nozzle extending on the roll surface opens; c) between the blowing direction of the slit nozzle and one of the Nozzle mouth extending to the axis of rotation of the work roll Normal there is an angle in the direction of rotation of the roller is between 0 and 45 °, preferably 30 °; d) that end-side partition element has on its front almost tangential and at a short distance from Roll surface arranged, tapering like a cutting edge End part,
  • the invention is based on this prior art Task based on a simple and made from rolling mill Specify devices createable device, which in the Is able to deposit moisture on the belt surface in the Avoid reliably running out of cold rolling and strip lines or remove, and with reasonable effort Components and energy can be created and in the area of Outlet of a roll stand can be easily arranged, at Roll change and roll gap setting does not bother you comparatively low noise level.
  • the task is solved at one Device of the type mentioned in the preamble of claim 1 with the invention by the in the characterizing part of claim 1 specified characteristics.
  • An additional one consisting of moving parts Movable partitioning ensures further partitioning of the moist-wet roller area against the finished rolled strip, however allows due to the mobility of the parts advantageous accessibility of the rollers, for example, at Carrying out a roll change. Realize at the same time these moving parts function as a belt deflector and / or a means for band transfer.
  • the as attacks trained moving parts can optionally mechanically fixed or depending on the roll barrel be adjustable.
  • the cover of the band channel is hinged to the Accessibility of the belt e.g. to ease after ligament tears.
  • the figure shows with the omission of the actual roll stand two support rollers (31, 32) and a few between them Work rolls (33, 34). There is a roll gap (12) between them. set.
  • the parts (20, 21) of the movable The partition can be pivoted but also moved linearly be trained. They are with the double link arrangement (24) and a force means (22) so that the with the moving part (20) integrated bale blow-off (3) and the bale gap seal (4) and the band edge blow-off (5) at the same time from the effective position shown in the figure in the area of the work roll (33) can.
  • the power means (22) is preferably a Pneumatic cylinder; but it can also be a hydraulic cylinder or be an electric actuator.
  • the movable part is similar below the belt run (10) (21) with the power means (23) pivotable about the axis (25).
  • the upper cover (15) of the band channel (14) foldable. Due to the flexible design of the elements of the movable bulkhead and the cover (15) of the Band channel (14) is the accessibility in particular Work rolls (33, 34) and the roll gap (12) and the Band (30) easily and in particular without time-consuming Conversion measures guaranteed.
  • the device can preferably be bandwidth-dependent Roll gap lubrication work together, regardless of axially fixed or displaceable or crossed Rollers.
  • the device is designed to prevent it from falling back Moisture in the form of drops or mist the band (30) reliably prevents and thus the band quality optimized.
  • the key to this is in the opposite direction to the tape running direction (13) in Belt channel (14) generated suction flow through the Vapor extraction (6) in cooperation with the Bale gap seal (4) and the bale blow-off (3) in the Roller space (11) above the belt (30).
  • the device forms a functional unit or a system from simple and rolling mill-compatible components and results a dry belt with reasonable energy consumption. To that extent the invention optimally fulfills the above task.

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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. Among the preferred quality requirements set by the Manufacturers to the product "cold strip" are heard in addition to good flatness and optimal thickness tolerance Dryness of the strip in the cold rolling and Belt lines in order for the further processing of the belt Avoid surface defects, such as stains.

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. In the prior art there are different devices and Measures known with the aim of moisture and rolling medium to reach free, dry tape. For this, will be case by case Blow-offs, partitions, suction systems and combinations of these devices and measures used.

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 describes a device for contactless sealing of a gap between one Foreclosure and a work roll in the outlet of a Roll stand known with the following features: a) the Partitioning has an end-side partitioning element, which is approximately tangential to the surface of the work roll and at a relatively short distance from it and from the surface the rolling stock is arranged; b) the partitioning element has at least one connected to a compressed air source   Supply channel for compressed air, which is in a Direction of the roller axis at a short distance along the The slit nozzle extending on the roll surface opens; c) between the blowing direction of the slit nozzle and one of the Nozzle mouth extending to the axis of rotation of the work roll Normal there is an angle in the direction of rotation of the roller is between 0 and 45 °, preferably 30 °; d) that end-side partition element has on its front almost tangential and at a short distance from Roll surface arranged, tapering like a cutting edge End part, which is designed and arranged in such a way that between this and the roller surface according to Art of an injector is a cross-section that is constantly expanding Flow channel forms, which is at least in the width of the Rolled material extends 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. Known devices and measures for Production of dry tape is very energy-intensive, complicated and both when changing rollers and when Adjustment of the roll gap hinders and develop one annoying 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. In contrast, a really free of annoying moisture To get cold strip must be a device with such complex Be equipped to deal with all causes for the precipitation of moisture on the surface of the to detect and compensate the outgoing tape.

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. The invention is based on this prior art Task based on a simple and made from rolling mill Specify devices createable device, which in the Is able to deposit moisture on the belt surface in the Avoid reliably running out of cold rolling and strip lines or remove, and with reasonable effort Components and energy can be created and in the area of Outlet of a roll stand can be easily arranged, at Roll change and roll gap setting does not bother you comparatively low noise level.

Die Lösung der gestellten Aufgabe gelingt bei einer Vorrichtung der im Oberbegriff von Anspruch 1 genannten Art mit der Erfindung durch die im Kennzeichnungsteil von Anspruch 1 angegebenen Merkmale. The task is solved at one Device of the type mentioned in the preamble of claim 1 with the invention by the in the characterizing part of claim 1 specified characteristics.

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. With a permanently installed partition, a part of which is 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 against the finished rolled strip is sealed off.

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 one consisting of moving parts Movable partitioning ensures further partitioning of the moist-wet roller area against the finished rolled strip, however allows due to the mobility of the parts advantageous accessibility of the rollers, for example, at Carrying out a roll change. Realize at the same time these moving parts function as a belt deflector and / or a means for band transfer. The as attacks trained moving parts can optionally mechanically fixed or depending on the roll barrel be adjustable.

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 band channel is hinged to the Accessibility of the belt e.g. to ease after ligament tears.  

    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 specifically for the present application coordinated and designed mode of action the essential component as the core of the invention. It is the device very advantageous from simple and Rolling mill-compatible components can be manufactured and fulfilled with justifiable energy expenditure optimally the intended Function, namely a really dry from the rolling stand expiring product cold strip.

    Weitere Ausgestaltungen sind entsprechend den Unteransprüchen vorgesehen. Further configurations are in accordance with the subclaims intended.

    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. In the drawing is a schematic embodiment of the Invention - the so-called DS system = dry-strip system - shown, with further advantageous details from the figure are removable.

    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 with the omission of the actual roll stand two support rollers (31, 32) and a few between them Work rolls (33, 34). There is a roll gap (12) between them. set.

    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 parts of the device:
  • 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 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) 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. Advantageously, the parts (20, 21) of the movable The partition can be pivoted but also moved linearly be trained. They are with the double link arrangement (24) and a force means (22) so that the with the moving part (20) integrated bale blow-off (3) and   the bale gap seal (4) and the band edge blow-off (5) at the same time from the effective position shown in the figure in the area of the work roll (33) can. The power means (22) is preferably a Pneumatic cylinder; but it can also be a hydraulic cylinder or be an electric actuator.

    Ähnlich ist unterhalb des Bandlaufs (10) das bewegliche Teil (21) mit dem Kraftmittel (23) um die Achse (25) schwenkbar. The movable part is similar below the belt run (10) (21) with the power means (23) pivotable 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. And furthermore, the upper cover (15) of the band channel (14) foldable. Due to the flexible design of the elements of the movable bulkhead and the cover (15) of the Band channel (14) is the accessibility in particular Work rolls (33, 34) and the roll gap (12) and the Band (30) easily and in particular without time-consuming Conversion measures guaranteed.

    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 its specially for the present Use case designed synergistic mode of operation forms an 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 be bandwidth-dependent Roll gap lubrication work together, regardless of axially fixed or displaceable or crossed Rollers.

    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 to prevent it from falling back Moisture in the form of drops or mist the band (30) reliably prevents and thus the band quality optimized. The key to this is in the   opposite direction to the tape running direction (13) in Belt channel (14) generated suction flow through the Vapor extraction (6) in cooperation with the Bale gap seal (4) and the bale blow-off (3) in the Roller space (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 from simple and rolling mill-compatible components and results a dry belt with reasonable energy consumption. To that extent the invention optimally fulfills the above task.

    Claims (8)

    1. Device for keeping cold-rolled strip dry in the outlet of cold rolling and strip plants, with means for the deflecting of liquid rolling medium in the region of the strip outlet and/or for removal of injection or spray liquid adhering to surfaces of the strip (30), characterised by an association of these means in co-operation into a functional unit, wherein these comprise the following device parts:
      a) a fixedly installed partitioning (1, 2), the part (1) of which above the strip outlet (10) connects up to the frame stage and the part (2) of which below the strip outlet (10) connects up to the base plate,
      b) a movable partitioning constructed with movable parts (20, 21) to enable a problem-free roll exchange,
      c) a roll surface blasting device (3) constructed for the deflecting of squeezed rolling medium from the finish-rolled strip (30),
      d) a roll surface gap seal (4) for sealing the roll space (11), which lies above the strip (30), relative to the strip (30),
      e) a strip edge blasting device (5) constructed for generating an air current, which is at right angles to the strip (30), in the outlet-side roll gap (12) above the strip path (10), and
      f) a dust suction device (6) constructed for generating an air current, which is directed parallelly against the strip running direction (13), above and below the strip (30) in the strip channel (14).
    2. Device according to claim 1, characterised in that the parts (20, 21) of the movable partitioning are pivotable.
    3. Device according to claim 1, characterised in that the parts (20, 21) of the movable partitioning are nearly displaceable.
    4. Device according to claim 1, characterised in that at least a part (21) of the movable partitioning is constructed as a strip deflector or strip guiding-over device.
    5. Device according to one of claims 1 to 4, characterised in that cylinders (22, 23) are provided for movement of the parts (20, 21).
    6. Device according to one of claims 1 to 5, characterised in that the roll surface blasting device (3), the roll surface seal (4) and the strip edge blasting device (5) are integrated with the part (20) of the movable partitioning.
    7. Device according to one of claims 1 to 6, characterised in that the strip channel (14) is constructed with an upper cover (15) which can be pivoted up.
    8. Device according to one of claims 1 to 7, characterised in that it is associated with a roll gap lubricating device dependent on strip width.
    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

    Publications (2)

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

    Family

    ID=7772820

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP96114531A Expired - Lifetime EP0765696B1 (en) 1995-09-22 1996-09-11 Device for keeping cold rolled strip dry on the outlet of cold rolling and strip plants

    Country Status (8)

    Country Link
    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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    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

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    DE10206244A1 (en) * 2002-02-15 2003-08-28 Sms Demag Ag Device for keeping cold strip dry in the outlet of strip rolling plants
    DE102004060086A1 (en) * 2004-12-14 2006-06-22 Sms Demag Ag Method and device for strip blowing in the outlet of rolling mills for the production of drip-free and clean rolled strip
    DE102005039474A1 (en) 2005-08-20 2007-02-22 Sms Demag Ag rolling plant
    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
    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
    DE102012201496A1 (en) * 2012-02-02 2013-08-08 Sms Siemag Ag Device for directing a flow for cooling a roll or a metal strip
    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
    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
    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
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    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
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    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
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    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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    Also Published As

    Publication number Publication date
    DE19535168A1 (en) 1997-03-27
    KR100441849B1 (en) 2004-09-23
    JP4372234B2 (en) 2009-11-25
    KR970014860A (en) 1997-04-28
    DE59603617D1 (en) 1999-12-16
    GR3032352T3 (en) 2000-04-27
    JPH09122738A (en) 1997-05-13
    ATE186480T1 (en) 1999-11-15
    EP0765696A1 (en) 1997-04-02
    ES2140003T3 (en) 2000-02-16
    US5775152A (en) 1998-07-07

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