EP1718424B1 - Hydraulic device which is used to descale warm rolling products - Google Patents

Hydraulic device which is used to descale warm rolling products Download PDF

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Publication number
EP1718424B1
EP1718424B1 EP04715276A EP04715276A EP1718424B1 EP 1718424 B1 EP1718424 B1 EP 1718424B1 EP 04715276 A EP04715276 A EP 04715276A EP 04715276 A EP04715276 A EP 04715276A EP 1718424 B1 EP1718424 B1 EP 1718424B1
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EP
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Prior art keywords
nozzle
nozzles
nozzle head
heads
rotation
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EP04715276A
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German (de)
French (fr)
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EP1718424A1 (en
Inventor
Jürgen GAYDOUL
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Hermetik Hydraulik AB
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Hermetik Hydraulik AB
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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
    • B21B45/04—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 de-scaling, e.g. by brushing
    • B21B45/08—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 de-scaling, e.g. by brushing hydraulically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
    • B05B13/0463—Installation or apparatus for applying liquid or other fluent material to moving work of indefinite length
    • B05B13/0484—Installation or apparatus for applying liquid or other fluent material to moving work of indefinite length with spray heads having a circular motion, e.g. being attached to a rotating supporting element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B05B7/0892—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point the outlet orifices for jets constituted by a liquid or a mixture containing a liquid being disposed on a circle
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/45—Scale remover or preventor
    • Y10T29/4533—Fluid impingement
    • Y10T29/4544—Liquid jet

Definitions

  • the invention relates to a device for descaling of warm, relative to the device moving stock by irradiation by high pressure water with at least one Walzgutbreite sweeping Düsenkopf-2 with multiple nozzle heads, eder nozzle head is rotatably driven about a motor to the rolling surface substantially vertical axis of rotation and at least two eccentrically with respect Having the axis of rotation arranged nozzles.
  • the nozzles are arranged in each nozzle head with different angles to the axis of rotation to achieve a uniform treatment of Walzgutober Structure, so that the spray pattern of each nozzle with respect to the axis of rotation of the nozzle head covers a different radial region.
  • the rolling stock surface to be treated by a nozzle head should be evenly descaled over the entire radius of the nozzle head.
  • the DE 43 28 303 is silent about how to achieve a uniform descaling in the width direction of the rolling stock surface.
  • the distance between the nozzles and the rolling stock to be irradiated and the nozzle inclination angle with respect to the perpendicular to the rolling stock surface and the jet opening angle of the beam cone are kept as small as possible.
  • a minimum distance must be maintained between nozzle heads of the nozzle head row which are adjacent in the width direction of the rolling stock.
  • the nozzles of each nozzle head are inclined radially outwards.
  • the nozzles are also still in the circumferential direction and in the direction of rotation, i. with respect to the rotational movement of the nozzle head inclined leading.
  • the apparatus shown in Fig. 1 for descaling rolling stock 17 has two transversely to the direction of movement F of the rolling stock 17 and on both sides thereof arranged rows 18 with five fixed nozzle heads 20, one of which is shown in Fig. 2 in detail.
  • Each nozzle head 20 has circumferentially distributed over the circumference arranged flat spray nozzles 21 which are mounted on a rotatably driven ring 22 of the nozzle head 20 and are supplied via lines 9 with pressurized water of a pressure of 300 to 1000 bar.
  • the ring 22 is driven at a speed in the range of 200 to 1000 rpm.
  • the nozzle heads 20 are arranged at a distance a of the nozzles 21 from the rolling stock surface of the moving in the direction of arrow F under the stationary Düsenkopf Herbert rolling stock. This distance is selected so that the length t of the major axis and the length s of the minor major axis of the elliptical jet pattern of each nozzle 21 according to FIG. 3 correspond to desired values.
  • the opening angle of the flat jet is between 0 ° and 15 °.
  • the flattened ellipse 10 of the spray pattern of FIG. 2 rotates due to the rotation of the nozzles 21 about the vertical axis of rotation A of the nozzle head 20, wherein the rolling stock 17 is moved under the nozzle heads 20 in the direction of arrow F.
  • the rolling stock moves per revolution of the nozzle head 20 to the Amount d before.
  • the distance d corresponds to a quarter to a fifth of the nozzle head radius. In this way, a total of a spiral spray pattern according to FIG. 2 is generated.
  • FIGS. 4 and 5 two adjacent nozzle heads of a nozzle head row according to the invention are shown schematically.
  • each nozzle head a total of eight nozzles 1 to 8 are arranged uniformly distributed over the circumference, wherein the nozzle orifices on the underside of each nozzle head 20 radially outward as far as possible, d.h..so close as constructively possible on the outermost circumference 25 of each nozzle head are arranged.
  • the eight nozzles 1 to 8 are aligned along nozzle axes 1a to 8a.
  • nozzle axes 1a to 8a are shown in FIG. 4 radially outward by the angle ⁇ und au-ßerdem in the circumferential direction in the direction of rotation, i. in the direction of rotation f or f of the nozzle heads leading, inclined by the angle ⁇ .
  • Adjacent nozzle heads 20 rotate in the embodiment shown in the opposite direction. This means that in the gap b between two adjacent nozzle heads 20, their nozzles each radiate mirror images in the same direction, e.g. the nozzles 7.7 as shown in FIG. 5 mirror images of each other obliquely upward. This is advantageous in terms of achieving uniform surface quality. In addition, the torques of adjacent nozzle heads are compensated by the pairwise opposite drive of the nozzle heads.
  • the number of Nozzle Row can be even or odd. Depending on the width of the stock to be descaled this number is larger or smaller. If different rolling stock widths are to be descaled on a rolling mill installation, it is advantageous if the nozzle heads 20 can be switched off or switched on in pairs or in groups.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Spray Control Apparatus (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

An apparatus for descaling hot rolled stock (17), being moved with respect to the apparatus, by spraying it with high pressure water, comprising at least one row of nozzle heads sweeping across the width of the rolled stock with a plurality of nozzle heads (20), each nozzle head being motor-driven in rotation about an axis of rotation (A) substantially perpendicular to the surface of the rolled stock and comprising at least two nozzles (1 to 8) which are disposed eccentrically with respect to the axis of rotation (A) is characterized by the nozzles (1 to 8) of each nozzle head (20) being arranged as closely as structurally possible to the circumference (25) of the nozzle head, whereby a spray pattern is created on the surface of the rolled stock in a way to at least touch the spray pattern of the adjacent nozzle head in the row of nozzle heads.

Description

Die Erfindung betrifft eine Vorrichtung zum Entzundern von warmem, relativ zu der Vorrichtung bewegten Walzgut durch Bestrahlen mittels Hochdruckwasser mit mindestens einer die Walzgutbreite überstreichenden Düsenkopfreihe mit mehreren Düsenköpfen, wobei eder Düsenkopf um eine zur Walzgutoberfläche im wesentlichen senkrechte Drehachse motorisch drehantreibbar ist und mindestens zwei außermittig bezüglich der Drehachse angeordnete Düsen aufweist.The invention relates to a device for descaling of warm, relative to the device moving stock by irradiation by high pressure water with at least one Walzgutbreite sweeping Düsenkopfreihe with multiple nozzle heads, eder nozzle head is rotatably driven about a motor to the rolling surface substantially vertical axis of rotation and at least two eccentrically with respect Having the axis of rotation arranged nozzles.

Bei einer aus der DE 43 28 303 bekannten Vorrichtung dieser Art sind zur Erzielung einer gleichmäßigen Behandlung der Walzgutoberfläche die Düsen in jedem Düsenkopf mit zur Drehachse unterschiedlichen Winkeln angeordnet, so daß das Spritzbild jeder Düse bezogen auf die Drehachse des Düsenkopfs einen unterschiedlichen radialen Bereich überdeckt. Hierdurch soll die von einem Düsenkopf zu behandelnde Walzgutoberfläche über den gesamten Radius des Düsenkopfes gleichmäßig entzundert werden.At one of the DE 43 28 303 known device of this type, the nozzles are arranged in each nozzle head with different angles to the axis of rotation to achieve a uniform treatment of Walzgutoberfläche, so that the spray pattern of each nozzle with respect to the axis of rotation of the nozzle head covers a different radial region. As a result, the rolling stock surface to be treated by a nozzle head should be evenly descaled over the entire radius of the nozzle head.

Die DE 43 28 303 schweigt sich darüber aus, wie eine gleichförmige Entzunderung in Breitenrichtung der Walzgutoberfläche zu erreichen ist. Zur Erzielung einer gleichförmigen Bestrahlungsintensität ist der Abstand zwischen den Düsen und dem zu bestrahlenden Walzgut und der Düsenneigungswinkel bezüglich der Senkrechten zur Walzgutoberfläche sowie der Strahlöffnungswinkel des Strahlkegels möglichst klein gehalten werden. Andererseits ist zwischen in Breitenrichtung des Walzgutes benachbarten Düsenköpfen der Düsenkopfreihe jeweils ein Mindestabstand einzuhalten. Bei einer quer zur Bewegungsrichtung des Walzgutes angeordneten Düsenkopfreihe kann es darin dazu kommen, daß zwischen benachbarten Düsenköpfen Oberflächenstreifen verbleiben, die nicht oder nicht ausreichend entzundert sind.The DE 43 28 303 is silent about how to achieve a uniform descaling in the width direction of the rolling stock surface. To achieve a uniform irradiation intensity, the distance between the nozzles and the rolling stock to be irradiated and the nozzle inclination angle with respect to the perpendicular to the rolling stock surface and the jet opening angle of the beam cone are kept as small as possible. On the other hand, in each case a minimum distance must be maintained between nozzle heads of the nozzle head row which are adjacent in the width direction of the rolling stock. In the case of a nozzle head row arranged transversely to the direction of movement of the rolling stock, it may happen that surface stripes remain between adjacent nozzle heads which are not or not sufficiently descaled.

Es ist Aufgabe der Erfindung, hier eine Abhilfe zu schaffen und eine Vorrichtung zum Entzundern der eingangs beschriebenen Art anzugeben, die ein gleichmäßiges Entzundern von Walzgut über dessen ganze Breite ermöglicht.It is an object of the invention to provide a remedy and to provide a device for descaling of the type described above, which allows a uniform descaling of rolling over its entire width.

Zur Lösung dieser Aufgabe dienen die Merkmale des Anspruchs 1.To solve this problem serve the features of claim 1.

Bei der Erfindung ist die Düsenanordnung und -neigung der Düsen eines jeden Düsenkopfes abhängig vom Abstand der Düsenköpfe von der Walzgutoberfläche und vom Abstand benachbarter Düsenköpfe so getroffen; daß jeder Düsenkopf ein Spritzbild auf der Walzgutoberfläche erzeugt, welches das Spritzbild des oder der in der Düsenkopfreihe benachbarten Düsenköpfe zumindest tangiert, besser noch überlappt. Dadurch wird gewährleistet, daß auf der Walzgutoberfläche beim Bestrahlen keine Oberflächenstreifen mehr entstehen, in denen keine oder nur eine unzureichende Entzunderung stattgefunden hat.In the invention, the nozzle arrangement and inclination of the nozzles of each nozzle head depending on the distance of the nozzle heads of the rolling stock and the distance between adjacent nozzle heads made so; that each nozzle head generates a spray pattern on the Walzgutoberfläche, which at least tangent to the spray pattern of or in the nozzle head row adjacent nozzle heads overlaps better. This ensures that on the Walzgutoberfläche during irradiation no more surface stripes arise in which no or only insufficient descaling has taken place.

Bei einer bevorzugten Vorrichtung nach der Erfindung sind die Düsen jedes Düsenkopfes radial nach außen geneigt.In a preferred device according to the invention, the nozzles of each nozzle head are inclined radially outwards.

Bei einer besonders bevorzugten Ausführung sind die Düsen auch noch in Umfangsrichtung und im Drehsinn, d.h. bezüglich der Drehbewegung des Düsenkopfes voreilend geneigt.In a particularly preferred embodiment, the nozzles are also still in the circumferential direction and in the direction of rotation, i. with respect to the rotational movement of the nozzle head inclined leading.

Werden die Düsenköpfe einer Düsenkopfreihe gleichsinnig angetrieben, so hat dies zur Folge, daß die Düsenstrahlen im Bereich des Spaltes zwischen zwei Düsenköpfen spiegelbildlich einander entgegengerichtet aneinander vorbeidrehen. Hierdurch kann es zu unerwünschter gegenseitiger Strahlbeeinflussung mit dem Ergebnis von Turbulenzen kommen, die einer gleichmäßigen Entzunderung abträglich sind. Es ist deshalb eine weitere Aufgabe der Erfindung, dem abzuhelfen. Zu diesem Zweck ist bei einer Vorrichtung der eingangs beschriebenen Art vorgesehen, daß in der Düsenkopfreihe benachbarte Düsenköpfe gegensinnig drehend antreibbar sind. Dieser Gedanke ist sowohl in Verbindung mit den Merkmalen des Anspruchs 1 als auch nur in Verbindung mit den Merkmalen von dessen Oberbegriff von Bedeutung.If the nozzle heads of a Düsenkopfreihe driven in the same direction, this has the consequence that the nozzle jets in the region of the gap between two nozzle heads mirror-inverted rotate past each other. This can lead to undesirable mutual beam influence with the result of turbulence, which are detrimental to a uniform descaling. It is therefore a further object of the invention to remedy this. For this purpose, it is provided in a device of the type described above, that in the Düsenkopfreihe adjacent nozzle heads are in opposite directions rotationally driven. This idea is important both in conjunction with the features of claim 1 and only in conjunction with the features of the generic term.

Weitere vorteilhafte Ausgestaltungen der Erfindung sind in den weiteren Unteransprüche angegeben, z.B. bevorzugte Winkelbereiche für die radiale Neigung der Düsen und für die Neigung der Düsen in Umfangsrichtung und bevorzugte Anzahlen von gleichmäßig um den Umfang jedes Düsenkopfes verteilt angeordneten Düsen.Further advantageous embodiments of the invention are specified in the further subclaims, for example preferred angular ranges for the radial inclination of the nozzles and for the inclination of the nozzles in the circumferential direction and preferred numbers of evenly distributed around the circumference of each nozzle head arranged nozzles.

Die Erfindung ist im folgenden anhand schematischer Zeichnungen mit weiteren Einzelheiten näher erläutert; Es zeigen:

Fig. 1
eine Vorrichtung gemäß dem Stand der Technik in einer perspektivischen schematischen Darstellung;
Fig. 2
einen Düsenkopf der bekannten Vorrichtung mit dem von dessen Düsen erzeugten Spritzbild;
Fig. 3
eine Düse gemäß dem Stand der Technik mit dem davon erzeugten Spritzbild;
Fig. 4
eine schematische Ansicht zweier in einer Düsenkopfreihe über dem Walzgut nebeneinander angeordneten Düsenköpfe gemäß der Erfindung, und
Fig. 5
eine Ansicht der beiden Düsenköpfe in Richtung des Pfeiles V in Fig. 4.
The invention is explained in more detail below with reference to schematic drawings with further details; Show it:
Fig. 1
a device according to the prior art in a perspective schematic representation;
Fig. 2
a nozzle head of the known device with the spray pattern generated by its nozzle;
Fig. 3
a nozzle according to the prior art with the spray pattern generated therefrom;
Fig. 4
a schematic view of two in a row of nozzles above the rolling stock juxtaposed nozzle heads according to the invention, and
Fig. 5
a view of the two nozzle heads in the direction of arrow V in Fig. 4th

Die in Fig. 1 gezeigte Vorrichtung zum Entzundern von Walzgut 17 weist zwei quer zur Bewegungsrichtung F des Walzgutes 17 und beidseitig davon angeordnete Reihen 18 mit je fünf ortsfesten Düsenköpfen 20 auf, von denen einer in Fig. 2 im einzelnen dargestellt ist. Jeder Düsenkopf 20 hat am Umfang vier über den Umfang verteilt angeordnete Flachstrahldüsen 21, die an einem drehantreibbaren Ring 22 des Düsenkopfes 20 angebracht sind und über Leitungen 9 mit Druckwasser eines Druckes von 300 bis 1000 bar versorgt werden.The apparatus shown in Fig. 1 for descaling rolling stock 17 has two transversely to the direction of movement F of the rolling stock 17 and on both sides thereof arranged rows 18 with five fixed nozzle heads 20, one of which is shown in Fig. 2 in detail. Each nozzle head 20 has circumferentially distributed over the circumference arranged flat spray nozzles 21 which are mounted on a rotatably driven ring 22 of the nozzle head 20 and are supplied via lines 9 with pressurized water of a pressure of 300 to 1000 bar.

Der Ring 22 wird mit einer Drehzahl im Bereich von 200 bis 1000 U/min angetrieben.The ring 22 is driven at a speed in the range of 200 to 1000 rpm.

Die Düsenköpfe 20 sind mit einem Abstand a der Düsen 21 von der Walzgutoberfläche des in Richtung des Pfeiles F unter der ortsfesten Düsenkopfreihe bewegten Walzgutes angeordnet. Dieser Abstand ist so gewählt, daß die Länge t der großen Hauptachse und die Länge s der kleinen Hauptachse des ellipsenförmigen Strahlbildes jeder Düse 21 gemäß Fig. 3 gewünschten Werten entspricht. Der Öffnungswinkel des Flachstrahles liegt zwischen 0° und 15°.The nozzle heads 20 are arranged at a distance a of the nozzles 21 from the rolling stock surface of the moving in the direction of arrow F under the stationary Düsenkopfreihe rolling stock. This distance is selected so that the length t of the major axis and the length s of the minor major axis of the elliptical jet pattern of each nozzle 21 according to FIG. 3 correspond to desired values. The opening angle of the flat jet is between 0 ° and 15 °.

Die flachgedrückte Ellipse 10 des Spritzbildes gemäß Fig. 2 rotiert aufgrund der Rotation der Düsen 21 um die vertikale Drehachse A des Düsenkopfes 20, wobei das Walzgut 17 unter den Düsenköpfen 20 in Richtung des Pfeiles F weiterbewegt wird. Bei einer Drehzahl von 1000 U/min und einer Bewegungsgeschwindigkeit v des Walzgutes bezüglich der feststehenden Düsenköpfe 20 von 0,8 m/s rückt das Walzgut je Umdrehung des Düsenkopfes 20 um den Betrag d vor. Die Strecke d entspricht einem Viertel bis einem Fünftel des Düsenkopfradius. Auf diese Weise wird insgesamt ein spiraliges Spritzbild gemäß Fig. 2 erzeugt.The flattened ellipse 10 of the spray pattern of FIG. 2 rotates due to the rotation of the nozzles 21 about the vertical axis of rotation A of the nozzle head 20, wherein the rolling stock 17 is moved under the nozzle heads 20 in the direction of arrow F. At a speed of 1000 rev / min and a moving speed v of the rolling stock with respect to the fixed nozzle heads 20 of 0.8 m / s, the rolling stock moves per revolution of the nozzle head 20 to the Amount d before. The distance d corresponds to a quarter to a fifth of the nozzle head radius. In this way, a total of a spiral spray pattern according to FIG. 2 is generated.

Wenn die Strahlkegel 28 benachbarter Düsenköpfe 20 in Bereichen zwischen den Düsenköpfen einander nicht tangieren oder nicht ausreichend überlappen, kann es dazu kommen, daß Oberflächenstreifen 29 auf der Walzgutoberfläche bleiben, die nicht oder nicht ausrei-chend entzundert sind. Dies steht der erwünschten Verwirklichung einer gleichmäßigen Oberflächenqualität des Walzgutes über dessen gesamte Breite im Wege.If the beam cones 28 of adjacent nozzle heads 20 in areas between the nozzle heads do not interfere with each other or overlap sufficiently, surface strips 29 may remain on the rolling stock surface which are not or not sufficiently descaled. This is the desired realization of a uniform surface quality of the rolling over its entire width in the way.

In den Fig. 4 und 5 sind zwei benachbarte Düsenköpfe einer Düsenkopfreihe gemäß der Erfindung schematisch dargestellt. In jedem Düsenkopf sind insgesamt acht Düsen 1 bis 8 gleichmäßig über den Umfang verteilt angeordnet, wobei die Düsenmündungen an der Unterseite jedes Düsenkopfes 20 radial so weit außen .wie möglich, d.h..so nah wie konstruktiv möglich am äußersten Umfang 25 jedes Düsenkopfes angeordnet sind. Die acht Düsen 1 bis 8 sind längs Düsenachsen 1a bis 8a ausgerichtet.In FIGS. 4 and 5, two adjacent nozzle heads of a nozzle head row according to the invention are shown schematically. In each nozzle head a total of eight nozzles 1 to 8 are arranged uniformly distributed over the circumference, wherein the nozzle orifices on the underside of each nozzle head 20 radially outward as far as possible, d.h..so close as constructively possible on the outermost circumference 25 of each nozzle head are arranged. The eight nozzles 1 to 8 are aligned along nozzle axes 1a to 8a.

Diese Düsenachsen 1a bis 8a sind gemäß Fig. 4 radial nach außen um den Winkel αund au-ßerdem in Umfangsrichtung im Drehsinn, d.h. in Drehrichtung f oder f der Düsenköpfe voreilend, um den Winkel β geneigt. Daraus ergibt sich eine Gesamtneigung jeder Düse sowohl in radialer Richtung als auch in Umfangsrichtung um die Winkel α und β. Der Winkel α liegt im Bereich zwischen 0° und 20°, vorzugsweise im Bereich von α = 12° ± 2°.These nozzle axes 1a to 8a are shown in FIG. 4 radially outward by the angle αund au-ßerdem in the circumferential direction in the direction of rotation, i. in the direction of rotation f or f of the nozzle heads leading, inclined by the angle β. This results in an overall inclination of each nozzle both in the radial direction and in the circumferential direction by the angle α and β. The angle α is in the range between 0 ° and 20 °, preferably in the range of α = 12 ° ± 2 °.

Der Winkel β liegt im Bereich zwischen 0° und 30°,vorzugsweise im Bereich zwischen β = 15° ± 2°.The angle β is in the range between 0 ° and 30 °, preferably in the range between β = 15 ° ± 2 °.

Aus Fig. 4 ist ersichtlich, daß bei einem Abstand a zwischen der Unterseite 26 der Düsenköpfe 20 und der zu entzundernden Oberfläche 27 des Walzgutes die äußeren Mäntel der in Fig. 4 gestrichelt angedeuteten Strahlkegel am Punkt P der Düsen 7,7 im Spalt b zwischen den zwei benachbarten Düsenköpfen, d.h. in ihrer kleinsten Entfernung voneinander, gerade einander tangieren, so daß die gesamte Breite der Walzgutoberfläche durch die Düsenstrahlen abgedeckt wird und keine Streifen 29 (Fig. 1) mit nicht oder nur unzureichend entzunderter Oberfläche verbleibenFrom Fig. 4 it is seen that at a distance a between the bottom 26 of the nozzle heads 20 and the descaling surface 27 of the rolled material, the outer shells of the dashed lines in Fig. 4 indicated jet cone at point P of the nozzles 7,7 in the gap b between the two adjacent nozzle heads, ie at their smallest distance from each other, just touching each other, so that the entire width of the rolling stock surface is covered by the nozzle jets and no strips 29 (Fig. 1) remain with no or insufficiently descaled surface

Durch Verringern des Abstandes a und/oder Vergrößern des radialen Neigungswinkels α und/oder Vergrößern des Strahlöffnungswinkels ε ließe sich ohne weiteres eine gewünschte Überlappung der Düsenstrahlen der Düsen 7 der benachbarten Düsenköpfe erreichen, um die beschriebene Streifenbildung mit Sicherheit auszuschließen.By reducing the distance a and / or increasing the radial inclination angle α and / or increasing the beam opening angle ε, a desired one could easily be obtained To achieve overlap of the nozzle jets of the nozzle 7 of the adjacent nozzle heads in order to exclude the described banding with certainty.

Benachbarte Düsenköpfe 20 rotieren bei der gezeigten Ausführung in entgegengesetzter Richtung. Dies bedeutet, daß im Spalt b zwischen zwei benachbarten Düsenköpfen 20 deren Düsen jeweils spiegelbildlich in die gleiche Richtung strahlen, z.B. die Düsen 7,7 gemäß Fig. 5 spiegelbildlich zueinander schräg nach oben. Dies ist hinsichtlich der Erzielung einer gleichförmigen Oberflächenqualität von Vorteil. Außerdem werden durch den paarweisen gegensinnigen Antrieb der Düsenköpfe die Drehmomente benachbarter Düsenköpfe ausgeglichen.Adjacent nozzle heads 20 rotate in the embodiment shown in the opposite direction. This means that in the gap b between two adjacent nozzle heads 20, their nozzles each radiate mirror images in the same direction, e.g. the nozzles 7.7 as shown in FIG. 5 mirror images of each other obliquely upward. This is advantageous in terms of achieving uniform surface quality. In addition, the torques of adjacent nozzle heads are compensated by the pairwise opposite drive of the nozzle heads.

Die Anzahl der Düsenkopfreihen kann gradzahlig oder ungradzahlig sein. Je nach der Breite des zu entzundernden Walzgutes ist diese Anzahl größer oder kleiner. Sind auf einer Walzwerkanlage unterschiedliche Walzgutbreiten zu entzundern, so ist von Vorteil, wenn die Düsenköpfe 20 paar- oder gruppenweise abschaltbar bzw. zuschaltbar sind.The number of Nozzle Row can be even or odd. Depending on the width of the stock to be descaled this number is larger or smaller. If different rolling stock widths are to be descaled on a rolling mill installation, it is advantageous if the nozzle heads 20 can be switched off or switched on in pairs or in groups.

Die in der vorstehenden Beschreibung, den Figuren und den Ansprüchen offenbarten Merkmale können sowohl einzeln als auch in beliebiger Kombination für die Realisierung der Erfindung in den verschiedenen Ausgestaltungen von Bedeutung sein.The features disclosed in the foregoing description, the figures and the claims may be of importance both individually and in any combination for the realization of the invention in the various embodiments.

Claims (8)

  1. An apparatus for descaling hot rolled stock, being moved with respect to the apparatus, by spraying it with high pressure water, comprising at least one row of nozzle heads sweeping across the width of the rolled stock with a plurality of nozzle heads (20), each nozzle head being motor-driven in rotation about an axis of rotation (A) substantially perpendicular to the surface (27) of the rolled stock and comprising at least two nozzles (1 to 8) which are disposed eccentrically with respect to the axis of rotation (A), the nozzles (1 to 8) of each nozzle head (20) being arranged as closely as structurally possible to the circumference (25) of the nozzle head, whereby a spray pattern is created on the surface (27) of the rolled stock in a way to touch or overlap the spray pattern of the adjacent nozzle head (20) in the row of nozzle heads, and the nozzles (1 to 8) being arranged in the nozzle head (20) radially inclined outwardly at an angle of inclination (α) in the range of 0° ≤ α ≤ 20°, and inclined in circumferential direction (f,f') of the rotation of the nozzle head (20).
  2. The apparatus according to claim 1, characterized in that the angle (α) of radial inclination is in the range of α ≈ 12° ± 2°.
  3. The apparatus as claimed in claim 1 or 2, characterized in that the angle of inclination (β) of the nozzles in circumferential direction lies in an angular range of 0°< β ≤30°, especially in the angular range of β ≈15° ± 2°.
  4. The apparatus according to one of claims 1 to 3, characterized in that adjacent nozzle heads (20, 20) in the row of nozzle heads are driven in counter-rotating sense.
  5. The apparatus as claimed in any one of claims 1 to 4, characterized in that the jet opening angle (ε) of the jet exiting from the nozzles (1 to 8) is no greater than 15°, especially no greater than 10°.
  6. The apparatus as claimed in any one of claims 1 to 5, characterized in that at least six nozzles are arranged evenly distributed around the circumference of each nozzle head.
  7. The apparatus as claimed in claim 6, characterized in that eight nozzles (1 to 8) are arranged evenly distributed around the circumference of each nozzle head (20).
  8. The apparatus as claimed in any one of claims 1 to 7, characterized in that pairs or groups of nozzle heads in the row of nozzle heads are adapted to be switched off or on in correspondence with different widths of rolled stock.
EP04715276A 2004-02-27 2004-02-27 Hydraulic device which is used to descale warm rolling products Expired - Lifetime EP1718424B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2004/001968 WO2005082555A1 (en) 2004-02-27 2004-02-27 Hydraulic device which is used to descale warm rolling products

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EP1718424A1 EP1718424A1 (en) 2006-11-08
EP1718424B1 true EP1718424B1 (en) 2007-08-01

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US (1) US7958609B2 (en)
EP (1) EP1718424B1 (en)
CN (1) CN1925934B (en)
AT (1) ATE368532T1 (en)
CA (1) CA2556992C (en)
DE (1) DE502004004538D1 (en)
ES (1) ES2289488T3 (en)
MX (1) MXPA06009715A (en)
WO (1) WO2005082555A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008047029A1 (en) 2008-09-13 2010-03-18 Sms Siemag Aktiengesellschaft descaling
WO2013159786A1 (en) 2012-04-24 2013-10-31 Gaydoul Juergen Method and system for aftertreatment of a cast and/or warm-rolled steel product
DE102014109160B4 (en) 2014-06-30 2020-04-23 Hammelmann Maschinenfabrik Gmbh Device and method for cleaning a body with a surface layer to be removed

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101618406B (en) * 2008-06-30 2012-02-01 鞍钢股份有限公司 Surface color difference control method for hot-rolled pickled plate
DE102010004563A1 (en) * 2010-01-14 2011-07-21 SMS Siemag AG, 40237 Method and device for inline surface treatment of slabs
CN101780486B (en) * 2010-03-02 2012-05-30 武汉钢铁(集团)公司 Universal dephosphorizing device before billet rolling
CN101780445B (en) * 2010-03-02 2012-09-26 武汉钢铁(集团)公司 Spiral nozzle collector for dephosphorization before billet rolling
ITMI20110368A1 (en) * 2011-03-10 2012-09-11 Danieli Off Mecc OSCILLATING DROPPER AND METHOD TO DISCONNECT A METALLURGICAL SEMI-FINISH
CN102794317B (en) * 2012-08-16 2015-02-11 莱芜钢铁集团有限公司 Device and method for descaling surface of casting blank
CN103658204B (en) * 2012-09-25 2016-06-22 宝山钢铁股份有限公司 A kind of method for arranging of jet flow cleaning nozzle
CN102921766B (en) * 2012-11-13 2015-11-04 河北宏润核装备科技股份有限公司 The scale removal equipment of high temperature blank in seamless steel pipe hot extrusion technique
DE102013224506A1 (en) 2013-11-29 2015-06-03 Sms Siemag Ag Method and device for descaling a metallic surface and plant for producing metallic semi-finished products
CN103894429B (en) * 2014-03-28 2016-06-01 宝山钢铁股份有限公司 A kind of de-scaling cell layout method for jet de-scaling and jet descaling method
JP6310443B2 (en) * 2014-12-24 2018-04-11 ポスコＰｏｓｃｏ Rolled material descaler
CN105983498A (en) * 2015-02-11 2016-10-05 江苏沥泽生化科技有限公司 Nano-silver coating device
DE102015204664A1 (en) * 2015-03-16 2016-09-22 Lechler Gmbh Flat jet nozzle and use of a flat jet nozzle
US10350617B1 (en) * 2016-02-12 2019-07-16 Konstantin Dragan Composition of and nozzle for spraying a single-component polyurethane foam
DE102016217561A1 (en) * 2016-03-18 2017-09-21 Sms Group Gmbh Apparatus and method for descaling a moving workpiece
US10815353B1 (en) 2016-06-03 2020-10-27 Konstantin Dragan Composition of and nozzle for spraying a single-component polyurethane foam
US10702876B2 (en) * 2016-06-03 2020-07-07 Konstantin Dragan System, composition, and method for dispensing a sprayable foamable product
CN112584941B (en) * 2018-08-21 2024-03-08 赫梅蒂克水力公司 Device and method for descaling rolled stock
DE102019200760A1 (en) 2019-01-22 2020-07-23 Sms Group Gmbh Device and method for descaling a moving workpiece
CN111940519A (en) * 2019-05-16 2020-11-17 辽宁前杜实业发展集团有限公司 Multistage cooling system of steel rolling production line
EP4015099B1 (en) * 2020-12-15 2024-10-16 Primetals Technologies Austria GmbH Energy efficient production of a ferritic hot strip in a casting roll composite system
JP7439273B2 (en) 2021-06-17 2024-02-27 ヘルメティク・ヒドロリク・アーべー Sealing equipment, sealing systems, and methods for sealing leakage flows in mechanical elements
CN115870341B (en) * 2023-01-03 2023-05-23 辛集市澳森钢铁集团有限公司 Automatic hot rolling device for steel production

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2217360A (en) * 1938-05-18 1940-10-08 Shell Dev Hydraulic disruption of solids
US3829019A (en) * 1972-02-02 1974-08-13 Chaska Chem Co Inc Spinner assembly
AT316453B (en) 1972-07-27 1974-07-10 Voest Ag Electric traveling field career
CH570855A5 (en) * 1973-06-12 1975-12-31 Cerac Inst Sa
DE69314275T2 (en) 1992-07-31 1998-04-30 Danieli Off Mecc Descaling device using water
DE4328303C2 (en) 1992-12-23 1997-02-13 Juergen Gaydoul Device for descaling hot rolled material
JP3307771B2 (en) * 1993-08-23 2002-07-24 ハンス‐ユルゲン、ガイドール Means for descaling hot rolled steel sheets
US5996200A (en) * 1993-09-09 1999-12-07 Sms Schloemann-Siemag Aktiengesellschaft Descaling device and method
JPH11216513A (en) 1998-01-28 1999-08-10 Nkk Corp Steel member descaling equipment

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008047029A1 (en) 2008-09-13 2010-03-18 Sms Siemag Aktiengesellschaft descaling
WO2013159786A1 (en) 2012-04-24 2013-10-31 Gaydoul Juergen Method and system for aftertreatment of a cast and/or warm-rolled steel product
DE102014109160B4 (en) 2014-06-30 2020-04-23 Hammelmann Maschinenfabrik Gmbh Device and method for cleaning a body with a surface layer to be removed

Also Published As

Publication number Publication date
CA2556992C (en) 2010-10-19
WO2005082555A1 (en) 2005-09-09
ATE368532T1 (en) 2007-08-15
EP1718424A1 (en) 2006-11-08
MXPA06009715A (en) 2007-03-26
US7958609B2 (en) 2011-06-14
DE502004004538D1 (en) 2007-09-13
CN1925934A (en) 2007-03-07
US20070277358A1 (en) 2007-12-06
ES2289488T3 (en) 2008-02-01
CA2556992A1 (en) 2005-09-09
CN1925934B (en) 2010-04-28

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