EP1836010A1 - Rolling installation - Google Patents

Rolling installation

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Publication number
EP1836010A1
EP1836010A1 EP06776363A EP06776363A EP1836010A1 EP 1836010 A1 EP1836010 A1 EP 1836010A1 EP 06776363 A EP06776363 A EP 06776363A EP 06776363 A EP06776363 A EP 06776363A EP 1836010 A1 EP1836010 A1 EP 1836010A1
Authority
EP
European Patent Office
Prior art keywords
inlet
outlet
guide plate
rolling
suction channel
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
EP06776363A
Other languages
German (de)
French (fr)
Other versions
EP1836010B1 (en
Inventor
Hans-Jürgen HANKE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Siemag AG
Original Assignee
SMS Demag AG
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Filing date
Publication date
Application filed by SMS Demag AG filed Critical SMS Demag AG
Publication of EP1836010A1 publication Critical patent/EP1836010A1/en
Application granted granted Critical
Publication of EP1836010B1 publication Critical patent/EP1836010B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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.
  • Such a rolling mill is basically known from the prior art, for example from US Pat. No. 3,204,393.
  • 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 for the extraction of dust, smoke or gases were used, the monitoring of the rolling plants due to their size and arrangement significantly more difficult during their operation.
  • 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.
  • 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.
  • a rolling mill according to the invention is characterized in that its rolling stand in the inlet guide region is bounded on one side by an inlet guide plate and / or its outlet guide region on one side by a outlet guide plate and that the inlet suction via an opening in the inlet guide plate with the inlet guide area is in communication and / or that the outlet suction channel communicates with the outlet guide area via an opening in the outlet guide plate.
  • contaminated air is to be understood as a generic term for mist, dust, smoke and / or harmful gases, in particular flue gases.
  • rolling stand stands for quarto roughing stands, twin 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 mill or the suction device has the advantage that it has no complicated and thus expensive suction boxes compared to the described, known from the prior art suction and therefore structurally simple and rather inexpensive to produce. Nevertheless, it ensures an effective, because near the roll gap suction of contaminated air from the environment of the rolled strip, even without oversized suction hoods would have to be present and without unnecessarily much foreign air from the factory, in which the rolling mill stands, would have to be sucked.
  • 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 / or the outlet suction channel can be integrated into the rolling stand, whereby the rolling stand or the entire rolling mill can be made very compact, that is to say space-saving.
  • 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 and the outlet-side movable section is then telescopically movable in each case relative to the fixed main section assigned to it.
  • the inlet suction channel and / or the outlet suction channel can always be adjusted in height relative to the surface of the metal strip in accordance with the particular desired or set thickness of the metal strip, so that in this way an optimal extraction of polluted air is always guaranteed.
  • FIG. 1 shows a rolling mill according to the invention of a rolling mill
  • FIG. 2 shows a longitudinal section through an inlet suction channel.
  • Fig. 3 is a plan view from the interior of the inlet suction channel opposite to the suction on the inlet guide plate
  • the rolling mill comprises a rolling stand 110 with rollers 116 for rolling a metal strip.
  • the rolling stand 110 further comprises 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 rolling mill 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 beyond an opening 113-0 in an inlet guide plate 113, which delimits the inlet guide area 112 and communicates with the inlet guide area.
  • 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 telescopically formed. Both channels then have a fixed main portion 122-1, 124-1 and a relative to the fixed main portion movable portion 122-11, 124-11.
  • the method is carried out with a control device 130, which is preferably in the form of hydraulic cylinders 131 (not shown in Figure 1) is formed.
  • the inlet-side portion 122-11 of the inlet suction passage 122 opening into the opening 113-0 of the inlet guide plate 113 is preferably fixed to the inlet guide plate 113 at its inlet end and is then moved relative to the main portion 122-1 together with the latter.
  • the process is carried out in accordance with a respective currently desired size of the roll gap 118.
  • outlet side section 124-11 of the outlet suction channel 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 roller wiper 119, the guide plates 113, 115 are respectively moved together with the Walzenabstreifem 119 according to the current desired size of the roll gap 118.
  • the reference numeral 140 designates transport rollers in FIG. 1, via which the metal strip to be rolled is guided into or out of the roll stand.
  • 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 constructed compactly, that is to say in a space-saving manner.
  • 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. 2 shows a side view of the inlet-side section 122-11 of the inlet suction channel 122. It can be seen there that this inlet-side section at the end which projects into the opening 113-0 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-related reasons, the inlet-side section 122-11 can increasingly taper with increasing distance from the inlet guide region 112. Section 122-11 is shown in FIG. 1 as well as in FIG. 2 arranged 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. 3 shows a plan view of the inlet-side end of the inlet-side section 122-11. It can be seen there, as already shown schematically in FIG. 2, that the opening 113-0 is subdivided 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.
  • the representations of the inlet suction channel 122 shown in FIGS. 2 and 3 likewise apply equally to the outlet suction channel 124.

Landscapes

  • 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

Walzanlagerolling plant
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.
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 Ab- saugkanälen 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 WaI- zenabstreifern in ihrer Höhe gegenüber dem Metallband. 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.Such a rolling mill is basically known from the prior art, for example from US Pat. No. 3,204,393. 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 for the extraction of dust, smoke or gases were used, 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 the suction boxes or suction hoods can be substantially reduced. On the input side and / or on the output side of the rolling mill or rolling stand, preferably pneumatically operated lifting devices are provided for optimum positioning of the suction boxes together with waist scrapers in their height relative to the metal strip. 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 eine erfindungsgemäße Walzanlage dadurch gekennzeichnet, dass ihr Walzgerüst im Einlaufführungsbereich einseitig durch eine Einlauffüh- rungsplatte und/oder ihr Auslaufführungsbereich einseitig durch eine Auslauf- führungsplatte begrenzt ist und dass der Einlaufabsaugkanal über eine Öffnung in der Einlaufführungsplatte mit dem Einlaufführungsbereich in Verbindung steht und/oder dass der Auslaufabsaugkanal über eine Öffnung in der Auslauffüh- rungsplatte mit dem Auslaufführungsbereich in Verbindung steht.This object is solved by the subject matter of patent claim 1. Accordingly, a rolling mill according to the invention is characterized in that its rolling stand in the inlet guide region is bounded on one side by an inlet guide plate and / or its outlet guide region on one side by a outlet guide plate and that the inlet suction via an opening in the inlet guide plate with the inlet guide area is in communication and / or that the outlet suction channel communicates with the outlet guide area via an opening in the outlet guide plate.
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" is to be understood as a generic term for mist, dust, smoke and / or harmful gases, in particular flue gases. The term "rolling stand" stands for quarto roughing stands, twin 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 einfa- eher 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. Gemäß einem ersten Ausführungsbeispiel der Erfindung ist es vorteilhaft, wenn die Öffnungen in der Einlaufführungsplatte und/oder in der Auslaufführungsplat- te 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.The claimed embodiment of the rolling mill or the suction device has the advantage that it has no complicated and thus expensive suction boxes compared to the described, known from the prior art suction and therefore structurally simple and rather inexpensive to produce. Nevertheless, it ensures an effective, because near the roll gap suction of contaminated air from the environment of the rolled strip, even without oversized suction hoods would have to be present and without unnecessarily much foreign air from the factory, in which the rolling mill stands, would have to be sucked. According to a first embodiment of the invention, it is advantageous if the openings in the inlet guide plate and / or in the Auslaufführungsplat- te are 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.
Weiterhin ist es vorteilhaft, dass der Einlaufabsaugkanal und/oder der Auslaufabsaugkanal in das Walzgerüst integrierbar ist, wodurch das Walzgerüst bzw. die gesamte Walzanlage sehr kompakt, das heißt platzsparend, ausgeführt werden kann.Furthermore, it is advantageous that the inlet suction channel and / or the outlet suction channel can be integrated into the rolling stand, whereby the rolling stand or the entire rolling mill can be made very compact, that is to say space-saving.
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 verunrei- nigten 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 and 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 channel and / or the outlet suction channel can always be adjusted in height relative to the surface of the metal strip in accordance with the particular desired or set thickness of the metal strip, so that in this way an optimal extraction of polluted air is always guaranteed.
Das Verfahren der einlaufseitigen beziehungsweise auslaufseitigen Abschnitte zusammen mit den Führungsplatten und auch zusammen mit den vorhandenen Walzenabstreifem erfolgt vorteilhafterweise durch eine Ansteuereinrichtung, welche vorzugsweise in Form von hydraulischen Zylindern ausgebildet ist. Der Beschreibung sind insgesamt drei schematisch gehaltene Figuren beigefügt, wobei:The method of the inlet-side or outlet-side sections together with the guide plates and also together with the existing Walzenabstreifem is advantageously carried out by a drive device, which is preferably designed in the form of hydraulic cylinders. The description is a total of three schematically held figures attached, wherein:
Fig. 1 ein erfindungsgemäßes Walzgerüst einer Walzanlage;1 shows a rolling mill according to the invention of a rolling mill;
Fig. 2 einen Längsschnitt durch einen Einlaufabsaugkanal; und Fig. 3 eine Draufsicht aus dem Inneren des Einlaufabsaugkanals entgegen der Absaugrichtung auf die Einlaufführungsplatte2 shows a longitudinal section through an inlet suction channel. and Fig. 3 is a plan view from the interior of the inlet suction channel opposite to the suction on the inlet guide plate
zeigt.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 113-0 in einer Einlaufführungsplatte 113, welche den Einlaufführungs- bereich 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 durch- führen 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.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 comprises 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 rolling mill 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 beyond an opening 113-0 in an inlet guide plate 113, which delimits the inlet guide area 112 and communicates with the inlet guide area. 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 be able 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 122-1, 124-1 und einen relativ zu dem feststehenden Hauptabschnitt verfahrbaren Abschnitt 122-11, 124-11. 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 113-0 der Einlaufführungsplatte 113 mün- dende einlaufseitige Abschnitt 122-11 des Einlaufabsaugkanals 122 ist an seinem einlaufseitigen Ende vorzugsweise an der Einlaufführungsplatte 113 befestigt und wird dann zusammen mit dieser relativ gegenüber dem Hauptabschnitt 122-1 verfahren. Das Verfahren erfolgt nach Maßgabe einer jeweils aktuell gewünschten Größe des Walzspaltes 118. Analog ist auch der auslaufseitige Ab- schnitt 124-11 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 zusam- men mit den Walzenabstreifem 119 entsprechend der aktuellen gewünschten Größe des Walzspaltes 118 verfahren.As can be seen in Figure 1, preferably both the inlet suction channel 122 and the outlet suction channel 124 are telescopically formed. Both channels then have a fixed main portion 122-1, 124-1 and a relative to the fixed main portion movable portion 122-11, 124-11. The method is carried out with a control device 130, which is preferably in the form of hydraulic cylinders 131 (not shown in Figure 1) is formed. The inlet-side portion 122-11 of the inlet suction passage 122 opening into the opening 113-0 of the inlet guide plate 113 is preferably fixed to the inlet guide plate 113 at its inlet end and is then moved relative to the main portion 122-1 together with the latter. The process is carried out in accordance with a respective currently desired size of the roll gap 118. Similarly, the outlet side section 124-11 of the outlet suction channel 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 roller wiper 119, the guide plates 113, 115 are respectively moved together with the Walzenabstreifem 119 according 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. 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.The reference numeral 140 designates transport rollers in FIG. 1, via which the metal strip to be rolled is guided into or out of the roll stand. 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. 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 constructed compactly, that is to say in a space-saving manner. 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 122-11 des Einlaufabsaugkanals 122. Es ist dort zu erkennen, dass dieser einlaufseitige Abschnitt an dem Ende, welches in die Öffnung 113-0 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 122-11 mit wachsendem Abstand von dem Ein- laufführungsbereich 112 zunehmend verjüngen. Der Abschnitt 122-11 ist sowohl in Figur 1 wie auch in Figur 2 gegenüberliegend zu der Transportrolle 140 an- geordnet gezeigt. Diese Darstellungen sind lediglich beispielhaft zu verstehen; die Transportrolle 140 könnte auch an anderer Stelle positioniert sein.FIG. 2 shows a side view of the inlet-side section 122-11 of the inlet suction channel 122. It can be seen there that this inlet-side section at the end which projects into the opening 113-0 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-related reasons, the inlet-side section 122-11 can increasingly taper with increasing distance from the inlet guide region 112. Section 122-11 is shown in FIG. 1 as well as in FIG. 2 arranged 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 122-11 gezeigt. Es ist dort zu erkennen, wie bereits in Figur 2 schema- tisch dargestellt, dass die Öffnung 113-0 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. FIG. 3 shows a plan view of the inlet-side end of the inlet-side section 122-11. It can be seen there, as already shown schematically in FIG. 2, that the opening 113-0 is subdivided 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. The representations of the inlet suction channel 122 shown in FIGS. 2 and 3 likewise apply equally to the outlet suction channel 124.

Claims

Patentansprüche claims
1. Walzanlage (100) umfassend: mindestens ein Walzgerüst (110) zum Walzen eines Metallbandes mit einem Einlaufführungsbereich (112) zum Einführen des Metallbandes in einen Walzspalt (118) des Walzgerüstes (110) und einem Auslaufführungsbereich (114) zum Herausführen des Metallbandes aus dem Walzgerüst; und eine Absaugeinrichtung (120) zum Absaugen von verunreinigter Luft aus der näheren Umgebung des Metallbandes mit einem walzspaltnah in den Einlaufführungsbereich (112) hineinführenden Einlaufabsaugkanal (122) und/oder mit einem walzspaltnah in den Auslaufführungsbereich (114) hineinführenden Auslaufabsaugkanal (124), dadurch gekennzeichnet, dass der Einlaufführungsbereich (112) einseitig durch eine Einlaufführungs- platte (113) und/oder der Auslaufführungsbereich (114) einseitig durch eine Auslaufführungsplatte (115) begrenzt ist; und der Einlaufabsaugkanal (122) über eine Öffnung (113-O) in der Einlauffüh- rungsplatte (113) mit dem Einlaufführungsbereich (112) in Verbindung steht; und/oder der Auslaufabsaugkanal (124) über eine Öffnung (115-O) in der Auslaufführungsplatte (115) mit dem Auslaufführungsbereich (114) in Verbindung steht.A rolling mill (100) comprising: at least one rolling stand (110) for rolling a metal strip having an entrance guide portion (112) for inserting the metal strip into a nip (118) of the rolling mill (110) and a discharge guide portion (114) for discharging the metal strip the rolling stand; and a suction device (120) for sucking contaminated air from the vicinity of the metal strip with a roll gap close into the inlet guide region (112) in Einlaufabsaugkanal (122) and / or with a close to the roll gap in the outlet guide region (114) leading into Auslaufabsaugkanal (124), characterized characterized in that the inlet guide region (112) is bounded on one side by an inlet guide plate (113) and / or the outlet guide region (114) on one side by an outlet guide plate (115); and the inlet suction passage (122) communicates with the inlet guide portion (112) via an opening (113-O) in the inlet guide plate (113); and / or the Auslaufabsaugkanal (124) via an opening (115-O) in the outlet guide plate (115) with the outlet guide portion (114) is in communication.
2. Walzanlage (100) nach Anspruch 1 , dadurch gekennzeichnet, dass die Öffnung (113-O) in der Einlaufführungsplatte (113) und/oder die Öffnung (115-0) in der Auslaufführungsplatte (115) in Form von Schlitzen2. rolling mill (100) according to claim 1, characterized in that the opening (113-O) in the inlet guide plate (113) and / or the opening (115-0) in the outlet guide plate (115) in the form of slots
(113-S) ausgebildet ist, welche über die Breite der jeweiligen Führungsplatte (113, 115) vorzugsweise parallel zur Walzrichtung (W) verteilt angeordnet sind.(113-S) is formed which over the width of the respective guide plate (113, 115) are preferably distributed parallel to the rolling direction (W).
3. Walzanlage (100) nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass der Einlaufabsaugkanal (122) und/oder der Auslaufabsaugkanal (124) in das Walzgerüst (110) integriert und vorzugsweise - zumindest abschnittweise - eng benachbart zu den Walzen (116) in dem Walzgerüst (110) geführt ist.3. rolling mill (100) according to any one of the preceding claims, characterized in that the inlet suction channel (122) and / or the Auslaufabsaugkanal (124) integrated into the roll stand (110) and preferably - at least in sections - closely adjacent to the rollers (116) in the rolling stand (110) is guided.
4. Walzanlage (100) nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass der Einlaufabsaugkanal (122) einen feststehenden Hauptabschnitt (122-1) und einen einlaufseitigen verfahrbaren Abschnitt (122-11) aufweist, wobei der einlaufseitige verfahrbare Abschnitt (122-11) vorzugsweise mit der Einlaufführungsplatte (113) verbunden und zusammen mit dieser relativ gegenüber dem feststehenden Hauptabschnitt (122-1) des Einlaufabsaugkanals nach Maßgabe der jeweils aktuell gewünschten Größe des Walzspaltes (118) verfahrbar ist; und/oder der Auslaufabsaugkanal (124) einen feststehenden Hauptabschnitt (124-1) und einen auslaufseitigen verfahrbaren Abschnitt (124-11) aufweist, wobei der auslaufseitige verfahrbare Abschnitt vorzugsweise mit der Auslauffüh- rungsplatte (115) verbunden und zusammen mit dieser relativ gegenüber dem feststehenden Hauptabschnitt (124-1) des Auslaufabsaugkanals nach Maßgabe der jeweils aktuell gewünschten Größe des Walzspaltes verfahr- bar ist.4. rolling mill (100) according to one of the preceding claims, characterized in that the inlet suction channel (122) has a fixed main portion (122-1) and an inlet-side movable portion (122-11), wherein the inlet-side movable portion (122-11 ) is preferably connected to the inlet guide plate (113) and together with this relative to the fixed main portion (122-1) of the inlet suction channel in accordance with the currently desired size of the roll gap (118) is movable; and / or the Auslaufabsaugkanal (124) has a fixed main portion (124-1) and an outlet-side movable portion (124-11), wherein the outlet-side movable portion preferably with the Auslauffüh- tion plate (115) and connected with this relative to the fixed main portion (124-1) of the outlet suction channel according to the currently desired size of the roll gap is movable bar.
5. Walzanlage (100) nach Anspruch 4, dadurch gekennzeichnet, dass die Walzanlage weiterhin eine Ansteuereinrichtung (130), vorzugswei- se in Form von hydraulischen Zylindern (131 ), aufweist zum Verfahren des5. rolling mill (100) according to claim 4, characterized in that the rolling mill further comprises a drive means (130), vorzugswei- se in the form of hydraulic cylinders (131), for the method of
Einlaufabsaugkanals (122) und/oder des Auslaufabsaugkanals (124) jeweils zusammen mit der zugehörigen Führungsplatte (113, 115), und die Einlauf- führungsplatte (113) und die Auslaufführungsplatte (115) in Kontakt zu den Walzen abstreifern 119 stehen, und diese entsprechend der aktuell gewünschten Größe des Walzspaltes (118) verfahrbar sind. Inlet suction channel (122) and / or the outlet suction channel (124) respectively together with the associated guide plate (113, 115), and the inlet guide plate (113) and the outlet guide plate (115) in contact with the roller scrapers 119 are, and they are movable according to 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

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

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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)
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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

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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
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DE102005039474A1 (en) 2007-02-22
DE502006003987D1 (en) 2009-07-30
ATE433808T1 (en) 2009-07-15
EP1836010B1 (en) 2009-06-17
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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