EP1836010B1 - Rolling installation - Google Patents

Rolling installation Download PDF

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Publication number
EP1836010B1
EP1836010B1 EP06776363A EP06776363A EP1836010B1 EP 1836010 B1 EP1836010 B1 EP 1836010B1 EP 06776363 A EP06776363 A EP 06776363A EP 06776363 A EP06776363 A EP 06776363A EP 1836010 B1 EP1836010 B1 EP 1836010B1
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EP
European Patent Office
Prior art keywords
inlet
outlet
guide plate
suction duct
rolling
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EP06776363A
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German (de)
French (fr)
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EP1836010A1 (en
Inventor
Hans-Jürgen HANKE
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SMS Siemag AG
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SMS Siemag AG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B9/00—Measures for carrying out rolling operations under special conditions, e.g. in vacuum or inert atmosphere to prevent oxidation of work; Special measures for removing fumes from rolling mills

Definitions

  • the invention relates to a rolling mill with at least one roll stand for rolling a metal strip and with at least one suction device for extracting haze or dust from the surface of the metal strip before and / or after a rolling operation.
  • the European patent application EP 0 765 696 A1 discloses a device for keeping cold strip dry in the outlet of cold rolling and strip lines.
  • the device comprises a permanently installed partition and a hinged movable partitioning in the outlet of the plant for rejecting liquid rolling medium in the region of the belt outlet.
  • a bale blower and a Bandkantenabblasung is integrated. Regardless of the foreclosure, the in EP-A 0 765 696 disclosed plant on a vapor extraction in the vicinity of the expiring metal strip.
  • the present invention seeks to further develop a known rolling mill with a suction device to the effect that the construction of the suction device is simplified and thus cheaper.
  • the rolling mill according to the invention is characterized in that the inlet suction channel and / or the outlet suction channel is integrated into the rolling stand and is guided vertically straight in the inlet guide region and / or the outlet guide region closely adjacent to the rollers.
  • contaminated air as a generic term for haze; Dust, smoke and / or harmful gases, especially flue gases to understand.
  • the term “rolling stand” stands for quarto roughing stands, duo roughing stands, heavy plate stands in “rolling mills”, which are generally designed as hot and cold flat rolling mills.
  • the claimed embodiment of the rolling plant or the suction device has the advantage that it has no complicated and thus expensive suction boxes over the described, known from the prior art suction and therefore structurally simple and cheaper to produce. Nevertheless, it ensures an effective, because close to the roll gap suction of contaminated air from the environment of the rolled strip, even without that oversized suction hoods would have to be present and without unnecessarily much foreign air from the Workshop, in which the rolling mill is, would have to be sucked. Due to the claimed integration of the inlet suction channel and / or the outlet suction channel in the roll stand, the rolling stand or the entire rolling mill can be made very compact, that is space-saving.
  • the openings in the inlet guide plate and / or in the outlet guide plate are formed in the form of slots.
  • the slots ensure that only smaller particles that pass through the slots are sucked by the suction device out of the vicinity of the metal strip; at the same time, larger particles or foreign objects that do not pass through the slots are retained by the slots.
  • the latter has the advantage that the retained foreign body can not damage the suction device, in particular a fan contained therein.
  • the inlet suction channel and the outlet suction channel each have a fixed main section and an inlet or outlet side movable section.
  • the inlet-side or the outlet-side movable section is then telescopically movable in each case relative to the fixed main section assigned to it.
  • the method of the inlet-side or outlet-side sections together with the guide plates and also together with the existing Walzenabstreifern is advantageously carried out by a drive device, which is preferably designed in the form of hydraulic cylinders.
  • FIG. 1 shows a rolling mill 100.
  • the rolling mill comprises a rolling stand 110 with rollers 116 for rolling a metal strip.
  • the rolling stand 110 further includes an inlet guide section 112 for inserting the metal strip into a nip 118 and a discharge guide section for extracting the metal strip after rolling from the mill stand 110.
  • the mill stand 110 has a suction device 120 for sucking contaminated air from the vicinity and in particular from the surface of the metal strip.
  • the suction device 120 comprises on the one hand an inlet suction channel 122 leading into the inlet guide region 112 and / or one outlet suction channel 124 leading into the outlet guide region 114.
  • the inlet guide channel 122 protrudes above an opening 113-O in an inlet guide plate 113 which defines the inlet guide portion 112 and communicates with the inlet guide portion.
  • the Auslaufabsaugkanal 124 via an opening 115-O in an outlet guide plate 115 which defines the outlet guide portion 114 and is in communication therewith.
  • both the inlet suction channel 122 and the outlet suction channel 124 are arranged as close as possible to the roll gap 118, means if possible in the immediate vicinity of the place where the pollution of the air arises.
  • both the inlet suction channel 122 and the outlet suction channel 124 are formed telescopically. Both channels then have a fixed main portion 122-I, 124-I and a relative to the fixed main portion movable portion 122-II, 124-II.
  • the method is carried out with a drive device 130, which is preferably in the form of hydraulic cylinders 131 (in FIG. 1 not shown) is formed.
  • the inflow-side portion 122-II of the intake exhaust passage 122 opening into the opening 113-O of the intake guide plate 113 is preferably fixed to the intake guide plate 113 at its upstream end, and then moved relative to the main portion 122-I together therewith.
  • the process is carried out in accordance with a respective currently desired size of the roll gap 118.
  • the outlet side section 124-II of the Auslaufabsaugkanals 124 is connected to the outlet guide plate 115 and can be moved together with this in accordance with the currently desired size of the roll gap.
  • the inlet guide plate 113 and the outlet guide plate 115 are always in contact with the Walzenabstreifem 119, the guide plates 113, 115 are respectively moved together with the Walzenabstreifern 119 corresponding to the current desired size of the roll gap 118.
  • the reference numerals 140 are in FIG. 1 Designates transport rollers over which the metal strip to be rolled is guided into the rolling stand or led out of this.
  • the vertically upwardly directed arrows in the inlet suction channel 122 and the outlet suction channel 124 indicate the direction in which the contaminated air is sucked out.
  • the horizontally oriented double arrows indicate the rolling direction W, in which the metal strip passes through the roll stand.
  • both the inlet suction channel 122 and the outlet suction channel 124 are integrated into the rolling stand, so that this and thus the entire rolling mill can be compact, that is to say save space.
  • the integration of the said channels into the roll stand is possible in particular because of the arrangement of the channels in a straight line and close to the roll gap in the vertical direction.
  • FIG. 12 shows a side view of the inlet side portion 122-II of the inlet suction channel 122. It can be seen that this inlet side section at the end which projects into the opening 113-O is extended as far as possible over the entire width of the metal strip to be rolled. In order to save material and costs, but also for suction reasons, the inlet-side section 122-II can increasingly taper with increasing distance from the inlet guide region 112. Section 122-II is in both FIG. 1 as well as in FIG. 2 shown disposed opposite to the transport roller 140. These illustrations are only to be understood as examples; the transport roller 140 could also be positioned elsewhere.
  • FIG. 12 is a plan view of the inlet end of the inlet side portion 122-II. It can be seen there as already in FIG. 2 schematically illustrated that the opening 113-O is divided into a plurality of partial openings in the form of slots 113-S. Through the slots 113-S is prevented that larger parts are sucked by the suction device 120 with and then undesirably clog or even destroy.
  • FIGS. 2 and 3 shown representations of the inlet suction channel 122 equally apply to the Auslaufabsaugkanal 124th

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Metal Rolling (AREA)
  • Glass Compositions (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)

Abstract

The invention relates to a rolling installation comprising a roll stand (110) for rolling a metal strip and a suction device (120) for sucking polluted air from the immediate environment of the metal strip to be rolled. The aim of the invention is to structurally simplify the suction device. To this end, the inlet guiding region (112) is defined on one side by an inlet guiding plate (113) and the inlet suction channel (120) is connected to the inlet guiding region (112) via an opening (113-O) in the inlet guiding plate (113). The same arrangement can be applied to the discharge suction channel (124) and the discharge guiding region (114).

Description

Die Erfindung betrifft eine Walzanlage mit mindestens einem Walzgerüst zum Walzen eines Metallbandes und mit mindestens einer Absaugeinrichtung zum Absaugen von Dunst bzw. Staub von der Oberfläche des Metallbandes vor und/oder nach einem Walzvorgang.The invention relates to a rolling mill with at least one roll stand for rolling a metal strip and with at least one suction device for extracting haze or dust from the surface of the metal strip before and / or after a rolling operation.

Die europäische Patentanmeldung EP 0 765 696 A1 offenbart eine Vorrichtung zum Trockenhalten von Kaltband im Auslauf von Kaltwalz- und Bandanlagen. Die Vorrichtung umfasst eine fest installierte Abschottung und eine gelenkig damit verbundene bewegliche Abschottung im Auslauf der Anlage zum Abweisen von flüssigem Walzmedium im Bereich des Bandauslaufs. In die Abschottung ist eine Ballenabblasung und eine Bandkantenabblasung integriert. Unabhängig von der Abschottung weist die in EP-A 0 765 696 offenbarte Anlage eine Dunstabsaugung in der Nähe des auslaufenden Metallbandes auf.The European patent application EP 0 765 696 A1 discloses a device for keeping cold strip dry in the outlet of cold rolling and strip lines. The device comprises a permanently installed partition and a hinged movable partitioning in the outlet of the plant for rejecting liquid rolling medium in the region of the belt outlet. In the foreclosure a bale blower and a Bandkantenabblasung is integrated. Regardless of the foreclosure, the in EP-A 0 765 696 disclosed plant on a vapor extraction in the vicinity of the expiring metal strip.

Aus dem Stand der Technik, zum Beispiel aus dem US-Patent US 3,204,393 ist eine derartige Walzanlage grundsätzlich bekannt. Der Entwicklung der in dieser Patentschrift offenbarten Walzanlage lag das Problem zugrunde, dass bei den bis dahin bekannten Absaugeinrichtungen in der Umgebung von Walzgerüsten sehr groß dimensionierte Dunstabzugshauben zum Absaugen von Staub, Qualm oder Gasen verwendet wurden, die aufgrund ihrer Größe und Anordnung eine Überwachung der Walzanlagen bei deren Betrieb deutlich erschwerten. Um dieses Problem zu lösen, schlägt das besagte US-Patent vor, den Absaugkanälen auf der Eingangsseite und der Ausgangsseite der Walzanlage so genannte Absaugboxen mit jeweils einem Absaugschlitz zuzuordnen. Dabei sind die Absaugschlitze jeweils in unmittelbarer Nähe des Walzspaltes angeordnet, das heißt unmittelbar dort, wo der Staub und Qualm entsteht. Aufgrund dieser günstigen Platzierung beziehungsweise Anordnung des Absaugschlitzes können die für eine wirksame Absaugung des Staubs und des Qualms notwendige Luftmenge und damit auch die Abmessungen der Absaugboxen beziehungsweise der Absaughauben wesentlich reduziert werden. Auf der Eingangsseite und/oder auf der Ausgangsseite der Walzanlage beziehungsweise des Walzgerüstes sind vorzugsweise pneumatisch arbeitende Hebeeinrichtungen vorhanden zum optimalen Positionieren der Absaugboxen zusammen mit Walzenabstreifern in ihrer Höhe gegenüber dem Metallband.From the prior art, for example from the US patent US 3,204,393 Such a rolling mill is basically known. The development of the rolling mill disclosed in this patent was based on the problem that in the hitherto known suction devices in the vicinity of rolling stands very large-sized cooker hoods were used to extract dust, smoke or gases, the monitoring of the rolling plants due to their size and arrangement significantly more difficult during their operation. In order to solve this problem, said US patent proposes to associate so-called suction boxes, each with a suction slot, on the suction ducts on the inlet side and the outlet side of the rolling mill. The suction slots are each arranged in the immediate vicinity of the roll gap, that is, directly where the dust and smoke originates. Due to this favorable placement or arrangement of the suction slot, the amount of air necessary for effective extraction of the dust and the smoke and thus also the dimensions of Absaugboxen or the suction hoods are significantly reduced. On the input side and / or on the output side of the rolling mill or rolling stand preferably pneumatically operating lifting devices are provided for optimal positioning of Absaugboxen together with Walzenabstreifern in their height relative to the metal strip.

Ausgehend von diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine bekannte Walzanlage mit einer Absaugeinrichtung dahingehend weiterzubilden, dass die Konstruktion der Absaugeinrichtung vereinfacht und damit preisgünstiger wird.Based on this prior art, the present invention seeks to further develop a known rolling mill with a suction device to the effect that the construction of the suction device is simplified and thus cheaper.

Diese Aufgabe wird durch den Gegenstand des Patentanspruchs 1 gelöst. Demnach ist die erfindungsgemäße Walzanlage dadurch gekennzeichnet, dass der Einlaufabsaugkanal und / oder der Auslaufabsaugkanal in das Walzgerüst integriert ist und darin eng benachbart zu den Walzen bis in den Einlaufführungsbereich und / oder den Auslaufführungsbereich vertikal gradlinig geführt ist.This object is solved by the subject matter of patent claim 1. Accordingly, the rolling mill according to the invention is characterized in that the inlet suction channel and / or the outlet suction channel is integrated into the rolling stand and is guided vertically straight in the inlet guide region and / or the outlet guide region closely adjacent to the rollers.

Im Rahmen der vorliegenden Erfindung ist der Begriff "verunreinigte Luft" als Oberbegriff für Dunst; Staub, Qualm und/oder gesundheitsschädliche Gase, insbesondere Rauchgase, zu verstehen. Der Begriff "Walzgerüst" steht für Quarto-Vorgerüste, Duo-Vorgerüste, Grobblechgerüste in "Walzanlagen", die generell als Warm- und Kalt-Flachwalzwerke ausgebildet sind.In the context of the present invention, the term "contaminated air" as a generic term for haze; Dust, smoke and / or harmful gases, especially flue gases to understand. The term "rolling stand" stands for quarto roughing stands, duo roughing stands, heavy plate stands in "rolling mills", which are generally designed as hot and cold flat rolling mills.

Die beanspruchte Ausgestaltung der Walzanlage beziehungsweise der Absaugeinrichtung hat den Vorteil, dass sie gegenüber der beschriebenen, aus dem Stand der Technik bekannten Absaugeinrichtung keine kompliziert aufgebauten und damit teuren Absaugboxen aufweist und deshalb konstruktiv einfacher und preisgünstiger herstellbar ist. Trotzdem gewährleistet sie ein wirkungsvolles, weil walzspaltnahes Absaugen von verunreinigter Luft aus der Umgebung des Walzbandes, auch ohne dass überdimensional große Absaughauben vorhanden sein müssten und ohne dass unnötig viel Fremdluft aus der Werkhalle, in welcher die Walzanlage steht, mit angesaugt werden müsste. Durch die beanspruchte Integration des Einlaufabsaugkanals und / oder des Auslaufabsaugkanals in das Walzgerüst kann das Walzgerüst bzw. die gesamte Walzanlage sehr kompakt, das heißt Platz sparend ausgeführt werden.The claimed embodiment of the rolling plant or the suction device has the advantage that it has no complicated and thus expensive suction boxes over the described, known from the prior art suction and therefore structurally simple and cheaper to produce. Nevertheless, it ensures an effective, because close to the roll gap suction of contaminated air from the environment of the rolled strip, even without that oversized suction hoods would have to be present and without unnecessarily much foreign air from the Workshop, in which the rolling mill is, would have to be sucked. Due to the claimed integration of the inlet suction channel and / or the outlet suction channel in the roll stand, the rolling stand or the entire rolling mill can be made very compact, that is space-saving.

Gemäß einem ersten Ausführungsbeispiel der Erfindung ist es vorteilhaft, wenn die Öffnungen in der Einlaufführungsplatte und/oder in der Auslaufführungsplatte in Form von Schlitzen ausgebildet sind. Die Schlitze gewährleisten, dass lediglich kleinere Partikel, die durch die Schlitze hindurchpassen, von der Absaugeinrichtung aus der Umgebung des Metallbandes abgesaugt werden; gleichzeitig werden größere Partikel oder Fremdkörper, die nicht durch die Schlitze hindurchpassen, von den Schlitzen zurückgehalten. Letzteres hat den Vorteil, dass die zurückgehaltenen Fremdkörper die Ansaugeinrichtung, insbesondere einen darin enthaltenen Ventilator nicht beschädigen können.According to a first embodiment of the invention, it is advantageous if the openings in the inlet guide plate and / or in the outlet guide plate are formed in the form of slots. The slots ensure that only smaller particles that pass through the slots are sucked by the suction device out of the vicinity of the metal strip; at the same time, larger particles or foreign objects that do not pass through the slots are retained by the slots. The latter has the advantage that the retained foreign body can not damage the suction device, in particular a fan contained therein.

Gemäß einem weiteren Ausführungsbeispiel ist vorgesehen, dass der Einlaufabsaugkanal und der Auslaufabsaugkanal jeweils einen feststehenden Hauptabschnitt und einen einlauf- beziehungsweise auslaufseitigen verfahrbaren Abschnitt aufweisen. Der einlaufseitige beziehungsweise der auslaufseitige verfahrbare Abschnitt ist dann jeweils gegenüber dem ihm jeweils zugeordneten feststehenden Hauptabschnitt teleskopartig verfahrbar. Auf diese Weise können der Einlaufabsaugkanal und/oder der Auslaufabsaugkanal in ihrer Höhe gegenüber der Oberfläche des Metallbandes immer nach Maßgabe der jeweils gewünschten beziehungsweise eingestellten Dicke des Metallbandes eingestellt werden, sodass auf diese Weise immer eine optimale Absaugung der verunreinigten Luft gewährleistet ist.According to a further embodiment, it is provided that the inlet suction channel and the outlet suction channel each have a fixed main section and an inlet or outlet side movable section. The inlet-side or the outlet-side movable section is then telescopically movable in each case relative to the fixed main section assigned to it. In this way, the inlet suction and / or the Auslaufabsaugkanal can be adjusted in height relative to the surface of the metal strip always in accordance with the respective desired or set thickness of the metal strip, so that in this way always an optimal suction of the contaminated air is guaranteed.

Das Verfahren der einlaufseitigen beziehungsweise auslaufseitigen Abschnitte zusammen mit den Führungsplatten und auch zusammen mit den vorhandenen Walzenabstreifern erfolgt vorteilhafterweise durch eine Ansteuereinrichtung, welche vorzugsweise in Form von hydraulischen Zylindern ausgebildet ist.The method of the inlet-side or outlet-side sections together with the guide plates and also together with the existing Walzenabstreifern is advantageously carried out by a drive device, which is preferably designed in the form of hydraulic cylinders.

Der Beschreibung sind insgesamt drei schematisch gehaltene Figuren beigefügt, wobei:

Fig. 1
eine erfindungsgemäße Walzanlage;
Fig. 2
einen Längsschnitt durch einen Einlaufabsaugkanal; und
Fig. 3
eine Draufsicht aus dem Inneren des Einlaufabsaugkanals entge- gen der Absaugrichtung auf die Einlaufführungsplatte
zeigt.The description is a total of three schematically held figures attached, wherein:
Fig. 1
a rolling mill according to the invention;
Fig. 2
a longitudinal section through an inlet suction channel; and
Fig. 3
a plan view of the interior of the inlet suction channel opposite the suction on the inlet guide plate
shows.

Die Erfindung wird nachfolgend in Form von Ausführungsbeispielen unter Bezugnahme auf die genannten Figuren detailliert beschrieben.The invention will now be described in detail in the form of embodiments with reference to said figures.

Figur 1 zeigt eine Walzanlage 100. Die Walzanlage umfasst ein Walzgerüst 110 mit Walzen 116 zum Walzen eines Metallbandes. Das Walzgerüst 110 umfasst weiterhin einen Einlaufführungsbereich 112 zum Einführen des Metallbandes in einen Walzenspalt 118 und einen Auslaufführungsbereich zum Herausführen des Metallbands nach einem Walzvorgang aus dem Walzgerüst 110. Darüber hinaus weist das Walzgerüst 110 eine Absaugeinrichtung 120 auf zum Absaugen von verunreinigter Luft aus der näheren Umgebung und insbesondere von der Oberfläche des Metallbandes. Die Absaugeinrichtung 120 umfasst zum einen einen in den Einlaufführungsbereich 112 hineinführenden Einlaufabsaugkanal 122 und/oder einen in den Auslaufführungsbereich 114 hineinführenden Auslaufabsaugkanal 124 auf. Der Einlaufführungskanal 122 steht über einer Öffnung 113-O in einer Einlaufführungsplatte 113, welche den Einlaufführungsbereich 112 begrenzt und mit dem Einlaufführungsbereich in Verbindung steht. Analog steht der Auslaufabsaugkanal 124 über einer Öffnung 115-O in einer Auslaufführungsplatte 115, welche den Auslaufführungsbereich 114 begrenzt und mit diesem in Verbindung steht. Um das Absaugen der verunreinigten Luft, das heißt von Dunst, Staub, Qualm oder von Gasen, möglichst effizient durchführen zu können, ist sowohl der Einlaufabsaugkanal 122 wie auch der Auslaufabsaugkanal 124 möglichst nahe an dem Walzspalt 118 angeordnet, das heißt möglichst in unmittelbarer Nähe des Ortes, wo die Verunreinigung der Luft entsteht. FIG. 1 shows a rolling mill 100. The rolling mill comprises a rolling stand 110 with rollers 116 for rolling a metal strip. The rolling stand 110 further includes an inlet guide section 112 for inserting the metal strip into a nip 118 and a discharge guide section for extracting the metal strip after rolling from the mill stand 110. In addition, the mill stand 110 has a suction device 120 for sucking contaminated air from the vicinity and in particular from the surface of the metal strip. The suction device 120 comprises on the one hand an inlet suction channel 122 leading into the inlet guide region 112 and / or one outlet suction channel 124 leading into the outlet guide region 114. The inlet guide channel 122 protrudes above an opening 113-O in an inlet guide plate 113 which defines the inlet guide portion 112 and communicates with the inlet guide portion. Similarly, the Auslaufabsaugkanal 124 via an opening 115-O in an outlet guide plate 115 which defines the outlet guide portion 114 and is in communication therewith. In order to carry out the suction of the contaminated air, that is to say of haze, dust, smoke or gases, as efficiently as possible, both the inlet suction channel 122 and the outlet suction channel 124 are arranged as close as possible to the roll gap 118, means if possible in the immediate vicinity of the place where the pollution of the air arises.

Wie in Figur 1 zu erkennen ist, sind vorzugsweise sowohl der Einlaufabsaugkanal 122 wie auch der Auslaufabsaugkanal 124 teleskopartig ausgebildet. Beide Kanäle besitzen dann einen feststehenden Hauptabschnitt 122-I, 124-I und einen relativ zu dem feststehenden Hauptabschnitt verfahrbaren Abschnitt 122-II, 124-II. Das Verfahren erfolgt mit einer Ansteuereinrichtung 130, die vorzugsweise in Form von hydraulischen Zylindern 131 (in Figur 1 nicht dargestellt) ausgebildet ist. Der in die Öffnung 113-O der Einlaufführungsplatte 113 mündende einlaufseitige Abschnitt 122-II des Einlaufabsaugkanals 122 ist an seinem einlaufseitigen Ende vorzugsweise an der Einlaufführungsplatte 113 befestigt und wird dann zusammen mit dieser relativ gegenüber dem Hauptabschnitt 122-I verfahren. Das Verfahren erfolgt nach Maßgabe einer jeweils aktuell gewünschten Größe des Walzspaltes 118. Analog ist auch der auslaufseitige Abschnitt 124-II des Auslaufabsaugkanals 124 mit der Auslaufführungsplatte 115 verbunden und kann zusammen mit dieser nach Maßgabe der jeweils aktuell gewünschten Größe des Walzspaltes verfahren werden. Die Einlaufführungsplatte 113 und die Auslaufführungsplatte 115 stehen stets in Kontakt mit den Walzenabstreifem 119, die Führungsplatten 113, 115 werden jeweils zusammen mit den Walzenabstreifern 119 entsprechend der aktuellen gewünschten Größe des Walzspaltes 118 verfahren.As in FIG. 1 can be seen, preferably both the inlet suction channel 122 and the outlet suction channel 124 are formed telescopically. Both channels then have a fixed main portion 122-I, 124-I and a relative to the fixed main portion movable portion 122-II, 124-II. The method is carried out with a drive device 130, which is preferably in the form of hydraulic cylinders 131 (in FIG. 1 not shown) is formed. The inflow-side portion 122-II of the intake exhaust passage 122 opening into the opening 113-O of the intake guide plate 113 is preferably fixed to the intake guide plate 113 at its upstream end, and then moved relative to the main portion 122-I together therewith. The process is carried out in accordance with a respective currently desired size of the roll gap 118. Similarly, the outlet side section 124-II of the Auslaufabsaugkanals 124 is connected to the outlet guide plate 115 and can be moved together with this in accordance with the currently desired size of the roll gap. The inlet guide plate 113 and the outlet guide plate 115 are always in contact with the Walzenabstreifem 119, the guide plates 113, 115 are respectively moved together with the Walzenabstreifern 119 corresponding to the current desired size of the roll gap 118.

Mit den Bezugszeichen 140 sind in Figur 1 Transportrollen bezeichnet, über die das zu walzende Metallband in das Walzgerüst hineingeführt oder aus diesem herausgeführt wird. Die vertikal nach oben gerichteten Pfeile in dem Einlaufabsaugkanal 122 und dem Auslaufabsaugkanal 124 zeigen die Richtung an, in welche die verunreinigte Luft abgesaugt wird. Demgegenüber zeigen die horizontal ausgerichteten Doppelpfeile die Walzrichtung W an, in welcher das Metallband das Walzgerüst durchläuft.The reference numerals 140 are in FIG. 1 Designates transport rollers over which the metal strip to be rolled is guided into the rolling stand or led out of this. The vertically upwardly directed arrows in the inlet suction channel 122 and the outlet suction channel 124 indicate the direction in which the contaminated air is sucked out. In contrast, the horizontally oriented double arrows indicate the rolling direction W, in which the metal strip passes through the roll stand.

Erfindungsgemäß sind sowohl der Einlaufabsaugkanal 122 wie auch der Auslaufabsaugkanal 124 in das Walzgerüst integriert, so dass dieses und damit die gesamte Walzanlage kompakt, das heißt platzsparend, gebaut werden kann. Die Integration der besagten Kanäle in das Walzgerüst ist insbesondere aufgrund der in vertikaler Richtung gradlinigen und walzspaltnahen Anordnung der Kanäle möglich.According to the invention, both the inlet suction channel 122 and the outlet suction channel 124 are integrated into the rolling stand, so that this and thus the entire rolling mill can be compact, that is to say save space. The integration of the said channels into the roll stand is possible in particular because of the arrangement of the channels in a straight line and close to the roll gap in the vertical direction.

Figur 2 zeigt eine Seitenansicht des einlaufseitigen Abschnittes 122-II des Einlaufabsaugkanals 122. Es ist dort zu erkennen, dass dieser einlaufseitige Abschnitt an dem Ende, welches in die Öffnung 113-O hineinragt, möglichst über die gesamte Breite des zu walzenden Metallbandes ausgedehnt ist. Um Material und Kosten einzusparen, aber auch aus absaugtechnischen Gründen, kann sich der einlaufseitige Abschnitt 122-II mit wachsendem Abstand von dem Einlaufführungsbereich 112 zunehmend verjüngen. Der Abschnitt 122-II ist sowohl in Figur 1 wie auch in Figur 2 gegenüberliegend zu der Transportrolle 140 angeordnet gezeigt. Diese Darstellungen sind lediglich beispielhaft zu verstehen; die Transportrolle 140 könnte auch an anderer Stelle positioniert sein. FIG. 2 FIG. 12 shows a side view of the inlet side portion 122-II of the inlet suction channel 122. It can be seen that this inlet side section at the end which projects into the opening 113-O is extended as far as possible over the entire width of the metal strip to be rolled. In order to save material and costs, but also for suction reasons, the inlet-side section 122-II can increasingly taper with increasing distance from the inlet guide region 112. Section 122-II is in both FIG. 1 as well as in FIG. 2 shown disposed opposite to the transport roller 140. These illustrations are only to be understood as examples; the transport roller 140 could also be positioned elsewhere.

In Figur 3 ist eine Draufsicht auf das einlaufseitige Ende des einlaufseitigen Abschnittes 122-II gezeigt. Es ist dort zu erkennen, wie bereits in Figur 2 schematisch dargestellt, dass die Öffnung 113-O in eine Mehrzahl von Teilöffnungen in Form von Schlitzen 113-S unterteilt ist. Durch die Schlitze 113-S wird verhindert, dass größere Teile von der Absaugeinrichtung 120 mit angesaugt werden und diese dann unerwünschterweise verstopfen oder sogar zerstören würden. Die in Figuren 2 und 3 gezeigten Darstellungen des Einlaufabsaugkanals 122 gelten gleichermaßen auch für den Auslaufabsaugkanal 124.In FIG. 3 Fig. 12 is a plan view of the inlet end of the inlet side portion 122-II. It can be seen there as already in FIG. 2 schematically illustrated that the opening 113-O is divided into a plurality of partial openings in the form of slots 113-S. Through the slots 113-S is prevented that larger parts are sucked by the suction device 120 with and then undesirably clog or even destroy. In the FIGS. 2 and 3 shown representations of the inlet suction channel 122 equally apply to the Auslaufabsaugkanal 124th

Claims (4)

  1. Rolling mill (100), which comprises at least one roll stand (110) for rolling a metal strip, with an inlet guide region (112) for guiding the metal strip into a roll gap (118) of the roll stand (110) and an outlet guide region (114) for guiding the metal strip out of the roll stand; and which comprises a suction system (120) for sucking contaminated air from the immediate vicinity of the metal strip with an inlet suction duct (122), which is connected with the inlet guide region (112) close to the roll gap by way of an opening (113-0) in an inlet guide plate (113) bounding the inlet guide region (112), and/or with an outlet suction duct (124), which is connected with the outlet guide region (114) close to the roll gap by way of an opening (115-0) in an outlet guide plate (115) bounding the inlet guide region (114), characterised in that the inlet suction duct (122) and/or the outlet suction duct (124) is integrated in the roll stand (110) and guided therein with a vertically straight orientation closely adjacent to the rolls (116) up to the inlet guide region (112) and/or the outlet guide region (114).
  2. Rolling mill (100) according to claim 1, characterised in that the opening (113-0) in the inlet guide plate (113) and/or the opening (115-0) in the outlet guide plate (115) is or are constructed in the form of slots (113-S), which are arranged to be distributed over the width of the respective guide plate (113, 115), preferably parallel to the rolling direction (W).
  3. Rolling mill (100) according to one of the preceding claims, wherein the inlet suction duct (122) has a stationary main section (122-I) and a movable section (122-II) at the inlet side, wherein the movable section (122-II) at the inlet side is preferably connected with the inlet guide plate (133) and is telescopically movable together with this relative to the stationary main section (122-I) of the inlet suction duct (122) depending on the respective currently desired size of the roll gap (118); and/or the outlet suction duct (124) has a stationary main section (124-I) and a movable section (124-II) at the outlet side, wherein the movable section (124-II) at the outlet side is preferably connected with the outlet guide plate (115) and telescopically movable together with this relative to the stationary main section (124-I) of the outlet suction duct (124) depending on the respective currently desired size of the roll gap (118).
  4. Rolling mill (100) according to claim 4, characterised in that the rolling mill further comprises a drive control system (130), preferably in the form of hydraulic cylinders (131), for moving the inlet suction duct (122) and/or the outlet suction duct (124) together with the associated guide plate (113, 115), and the inlet guide plate (113) and the outlet guide plate (115) are in contact with the roll strippers (119), and these are movable in correspondence with the currently desired size of the roll gap (118).
EP06776363A 2005-08-20 2006-07-24 Rolling installation Active EP1836010B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005039474A DE102005039474A1 (en) 2005-08-20 2005-08-20 rolling plant
PCT/EP2006/007251 WO2007022842A1 (en) 2005-08-20 2006-07-24 Rolling installation

Publications (2)

Publication Number Publication Date
EP1836010A1 EP1836010A1 (en) 2007-09-26
EP1836010B1 true EP1836010B1 (en) 2009-06-17

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EP06776363A Active EP1836010B1 (en) 2005-08-20 2006-07-24 Rolling installation

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US (1) US8186198B2 (en)
EP (1) EP1836010B1 (en)
JP (1) JP4486148B2 (en)
CN (1) CN101213031B (en)
AT (1) ATE433808T1 (en)
DE (2) DE102005039474A1 (en)
RU (1) RU2358818C1 (en)
UA (1) UA88520C2 (en)
WO (1) WO2007022842A1 (en)

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Publication number Priority date Publication date Assignee Title
DE102006056317A1 (en) * 2006-11-29 2008-06-05 Sms Demag Ag rolling mill
JP5211798B2 (en) * 2008-03-26 2013-06-12 Ｊｆｅスチール株式会社 Method for preventing foreign matter jumping in cold rolling mill and exhaust device for cold rolling mill
DE102009060244B4 (en) 2009-12-23 2022-09-15 Sms Group Gmbh Method and device for sucking off contaminated air from the outlet guide area of a roll stand
KR101500208B1 (en) * 2013-11-26 2015-03-06 주식회사 포스코 Apparatus for guiding waste gas
DE102015209399A1 (en) * 2014-11-04 2016-05-04 Sms Group Gmbh Device for removing exhaust air from the surroundings of a metal strip
CN110639954B (en) * 2019-09-25 2020-12-29 武汉钢铁有限公司 Hot rolling and finish rolling device capable of efficiently collecting dust and dust collecting method

Family Cites Families (10)

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Publication number Priority date Publication date Assignee Title
SE193633C1 (en) * 1962-07-03 1965-01-05
EP0114535A1 (en) * 1983-01-21 1984-08-01 Wean United, Inc. Device to get rid of a fluid on a metal band during rolling, and related elimination method
JPH0722441B2 (en) 1985-12-21 1995-03-15 井関農機株式会社 Lifting control device for tractor
JP2541808B2 (en) 1987-01-30 1996-10-09 東邦チタニウム株式会社 Solid catalyst component for olefin polymerization
DE59202907D1 (en) * 1991-05-17 1995-08-24 Sundwiger Eisen Maschinen Device for removing liquid from the surface of a moving belt.
DE19535168A1 (en) * 1995-09-22 1997-03-27 Schloemann Siemag Ag Device for keeping cold strip dry in the outlet of cold rolling and strip lines
CN2459104Y (en) * 2000-11-27 2001-11-14 宝山钢铁股份有限公司 Moveable duck mouth shaped suction-tip dust remover
CN2529711Y (en) * 2002-02-10 2003-01-08 鞍钢新轧钢股份有限公司 Reversing mill dusting appts.
DE10206244A1 (en) * 2002-02-15 2003-08-28 Sms Demag Ag Device for keeping cold strip dry in the outlet of strip rolling plants
CN2617486Y (en) * 2003-04-18 2004-05-26 江阴市方圆机械制造有限公司 Wetting tubular impact dust collector

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DE102005039474A1 (en) 2007-02-22
DE502006003987D1 (en) 2009-07-30
ATE433808T1 (en) 2009-07-15
EP1836010A1 (en) 2007-09-26
JP4486148B2 (en) 2010-06-23
CN101213031A (en) 2008-07-02
RU2358818C1 (en) 2009-06-20
US20090217727A1 (en) 2009-09-03
WO2007022842A1 (en) 2007-03-01
JP2008535666A (en) 2008-09-04
UA88520C2 (en) 2009-10-26
US8186198B2 (en) 2012-05-29
CN101213031B (en) 2010-10-06
RU2007136478A (en) 2009-04-10

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