EP0332867B1 - Turning and/or sliding lock and its locking parts - Google Patents

Turning and/or sliding lock and its locking parts Download PDF

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Publication number
EP0332867B1
EP0332867B1 EP89102653A EP89102653A EP0332867B1 EP 0332867 B1 EP0332867 B1 EP 0332867B1 EP 89102653 A EP89102653 A EP 89102653A EP 89102653 A EP89102653 A EP 89102653A EP 0332867 B1 EP0332867 B1 EP 0332867B1
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EP
European Patent Office
Prior art keywords
valve member
tube
movable
rotary
vessel
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.)
Expired - Lifetime
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EP89102653A
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German (de)
French (fr)
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EP0332867A1 (en
Inventor
José GIMPERA
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Didier Werke AG
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Didier Werke AG
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Publication date
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Priority to AT89102653T priority Critical patent/ATE71569T1/en
Publication of EP0332867A1 publication Critical patent/EP0332867A1/en
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Publication of EP0332867B1 publication Critical patent/EP0332867B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/38—Means for operating the sliding gate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures

Definitions

  • the invention relates to a rotary and / or slide closure for a pouring of a metal-containing vessel, with a refractory, immovable closure part and a relative to this sealingly rotatable and / or displaceable, fireproof, movable closure part, which by means of a rotating and / or Actuator is actuated.
  • DE-PS 3540202 A rotary and / or slide lock of this type is already known from DE-PS 3540202, from which the preamble of independent claim 1 is based.
  • DE-PS 3540202 describes a closure located in the vessel, to the movable closure part of which a push rod is fastened which is guided upwards through the melt. This requires complex refractory insulation or sealing of the drive elements.
  • the closure is on the outside of the vessel arranged (external system).
  • the closure is arranged in the vessel, the movable closure part being guided outwards (internal system with external drive).
  • a closure of the type mentioned is also described in US-PS 3651998.
  • a drive element of the movable closure part provided below the vessel is passed through the immovable closure part.
  • the attachment of the drive element to the movable closure part and the implementation through the refractory closure part are problematic when sealing melt spouts.
  • EP-A-0251015 discloses a microvalve designed as a multi-way flat slide valve for liquid media with an electromagnetic drive, consisting exclusively of metallic parts with very small masses and dimensions, the manufacturing tolerances of which are in the range of a few thousandths Millimeters are known. Such a valve is completely unsuitable as a slide closure on the spout of a container containing molten metal, because its metallic valve parts could not withstand the thermal, chemical and mechanical stress caused by the molten metal.
  • the object of the invention is to propose a closure of the type mentioned at the outset which does not have the disadvantages listed above and whose drive elements are not passed through the melt or through a vessel wall.
  • the above object is achieved in that the rotary and / or lifting drive is designed as an electromagnetic drive which has at least one magnetic coil arranged in the immovable closure part or in a vessel wall and at least one magnetic core arranged in the movable closure part. It is thereby achieved that no physical drive element has to act on the movable closure part, which has to extend through the melt in the vessel or through the immovable closure part or the vessel wall. This eliminates the need for mechanical, hydraulic or pneumatic drives and the supply lines, drive elements and control elements connected to them.
  • the magnetic coil required for the electromagnetic drive is arranged on the vessel or on the closure part which is immovable relative to it. Your electrical connections can be connected easily and without special space requirements. It is possible to integrate the drive circuit into the electrical control circuit of the overall system.
  • the electromagnetic drive is not a hindrance.
  • the invention provides that the movable tube is at least opposite to the immovable tube by means of one arranged in the movable tube magnetic core and at least one arranged in the immovable tube and / or in the vessel wall solenoid is rotatable and / or displaceable, or that by means of the at least one solenoid the movable tube is rotatable about the axis of the immovable tube and by means of another magnet coil is displaceable in the axial direction of the immovable tube.
  • the immovable closure part is arranged outside the vessel and the movable closure part is mounted in it, according to the invention it is provided that the electromagnetic drive consists of at least one magnet coil arranged at the end of the immovable closure part and at least one on corresponding end of the movable closure member arranged magnetic core.
  • the electromagnetic drive according to the invention is arranged outside the vessel and consists of at least one magnet coil arranged on the outer end of the immovable closure part or on a side wall of the vessel and at least one magnet core arranged on the corresponding end of the movable closure part.
  • an electromagnetic drive acts on at least one of the two axial ends of the rotor according to the invention, wherein at least two magnetic cores are preferably arranged in the rotor and at least two magnetic coils assigned to the magnetic cores for rotating the rotor relative to the stator are arranged in the stator or in the vessel wall.
  • a closure (2) is arranged on the bottom (1) of a vessel for a molten metal.
  • the closure (2) according to FIGS. 1 to 4 has a refractory tube (3) made of ceramic material, the axis of which is perpendicular to the floor (1).
  • the tube (3) is fixed in the bottom (1). It is provided with two or more openings (4) within the vessel.
  • a further tube (5) made of ceramic material is attached to the tube (3) as a movable closure part.
  • the tube (5) is closed at the top. It is with its scope Provide openings (6) that are the same size as the openings (4).
  • the tube (5) can be rotated sealingly about the axis of the tube (3), so that the openings (4, 6) are aligned in the open position of the closure (2) and the openings (6) are covered by the tube (3) in the closed position are.
  • An electromagnetic drive (7) is provided as the rotary drive for the tube (5).
  • This has one or more permanent magnetic magnetic cores (8) and one or more magnetic coils (9).
  • the magnetic core (s) (8) are arranged in the movable closure part (5).
  • the associated magnetic coils (9) are arranged on or in the floor (1) or in the immovable closure part (3). Your connecting lines (10) are led to the outside.
  • a magnetic coil (9) is assigned to each magnetic core (8). This is arranged on the floor (1) close to the pipe (5). The magnetic coils (9) are each located in one or in a common protective jacket (11) which covers the magnetic coils (9) against the melt.
  • the arrangement can be designed in such a way that the tube (5) is rotated in the closed position in one direction and in the open position in the opposite direction by a corresponding current application to the magnetic coils (9) via the connecting lines (10).
  • the tube (5) is only rotated in one direction. Because a closed position lies between two adjacent open positions, in which the openings (4, 6) are aligned.
  • the exemplary embodiment according to FIG. 2 differs from the exemplary embodiment according to FIG. 1 in that the magnetic coils (9) are not arranged outside the tube (5) on the bottom (1) but are integrated in the tube (3). This eliminates the need for the protective jacket (11) and eliminates the necessary gap (12) between the protective jacket (11) and the pipe (5).
  • an angled edge (13) is formed on the tube (5).
  • the magnetic cores (8) are integrated in these.
  • the magnetic coils (9) are integrated in the base (1) here. They are covered by the edge (13) against the melt.
  • the mode of operation of the embodiment according to FIGS. 2 and 3 corresponds to that of the embodiment according to FIG. 1.
  • the tube (5) is not only rotatable about the axis, but also axially displaceable.
  • the openings (6) are closed by the tube (3). So you are not in alignment with its openings (4).
  • the openings (4, 6) can only be aligned by turning around the axis when the tube (5) is moved upwards.
  • a further magnetic coil (14) is arranged in the tube (3) which is concentric with the axis mentioned.
  • This is assigned a further permanent magnetic core (15) or a magnetizable iron core, which is integrated in the tube (5).
  • the further magnetic coil (14) could also be integrated in the base (1).
  • the tube (5) is raised so that openings (6) lie in the plane of the openings (4).
  • the tube (5) is moved down again. This happens when an iron core (15) is provided under the static pressure of the melt.
  • the described magnetic cores (8) and the magnetic coils (9) are provided for rotating the tube (5).
  • the immovable closure part (3) is fastened to the bottom (1) outside of the vessel.
  • the movable closure part (5) which has a radial opening (6) and is aligned with radial openings (4) in the open position, is mounted displaceably and rotatably.
  • Magnetic cores (8) to which magnetic coils (9) are assigned, are integrated in the movable closure part (5).
  • the movable closure part (5) is rotated by a corresponding current application of the magnetic coils (9) in such a way that it closes the openings (4).
  • a further magnet arrangement can be provided for the axial displacement of the movable closure part (5).
  • the immovable closure part (3) is arranged at the bottom in the vessel and the movable closure part (5) is guided laterally outwards.
  • the latter is mounted in the immovable closure part (3) and, as the opening (6), has an angled channel which, when the closure is open, opens into an opening (4) in the immovable closure part (3) designed as an outlet channel.
  • the magnetic coils (9) are provided outside the vessel for the rotary drive of the movable closure part (5), with which magnetic cores (8) integrated in the movable closure part (5) are assigned.
  • the closure (2) is provided for an elongated spout on the bottom (1) of a vessel containing molten metal, which is suitable for casting thin slabs.
  • a stator (17) is provided as an immovable closure part and forms an elongated slot (18).
  • the stator (17) is divided into an upper part (19) and a lower part (20).
  • a rotor (21) is mounted in the stator (17) as a movable closure part.
  • the rotor (21) can be rotated about an axis parallel to the base (1) in the stator (17). It has an opening (22), the passage cross section of which is the same as the passage cross section of the slot (18).
  • two magnetic coils (9) are arranged on each side of the slot (18), each of which has a magnetic core (8) assigned to it.
  • the magnetic cores (8) are integrated in the rotor (21).
  • the rotor (21) is shown in the open position. Its opening (22) is aligned with the slot (18). The rotor (21) is brought into this position by a corresponding current flow through the magnet coils (9). By changing the current flow through the magnetic coils (9), the rotor (21) can be brought into a rotational position in which the opening (22) no longer aligns with the slot (18) and the rotor (21) slits the slot (18). closes.
  • the rotor (21) can also be extended such that it projects laterally beyond the vessel in the direction of its axis of rotation. It is then possible to arrange the electromagnetic drive described outside the vessel.
  • the solenoid coils (9 and 14) of the electromagnetic drive can also be controlled so that when the movable closure part (5 or 20) is in its open position or in its closed position, it is set into an oscillating movement with a small stroke .
  • the solidification of the melt can be prevented in the area of two surfaces which are to be movable relative to one another in order to bring the movable closure part from its closed position into its open position or vice versa.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Sliding Valves (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Safety Valves (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Taps Or Cocks (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
  • Switches With Compound Operations (AREA)
  • Lock And Its Accessories (AREA)

Abstract

A rotary and/or axial slide plate valve for controlling the discharge of molten metal from a metallurgical vessel includes a refractory fixed valve part and a refractory movable valve part at least partially disposed within the fixed valve part, the valve parts having respective peripheral surfaces which establish a seal therebetween. An electromagnetic drive is provided for moving the movable valve part between open and closed positions of the valve. The electromagnetic drive may facilitate rotary and/or axial movement of the movable valve part.

Description

Die Erfindung betrifft einen Dreh- und/oder Schieberverschluß für einen Ausguß eines Metallschmelze enthaltenden Gefäßes, mit einem feuerfesten, unbeweglichen Verschlußteil und einem relativ zu diesem dichtend dreh- und/oder verschiebbaren, feuerfesten, beweglichen Verschlußteil, das mittels eines Dreh- und/oder Hubantriebs betägtigbar ist.The invention relates to a rotary and / or slide closure for a pouring of a metal-containing vessel, with a refractory, immovable closure part and a relative to this sealingly rotatable and / or displaceable, fireproof, movable closure part, which by means of a rotating and / or Actuator is actuated.

Ein Dreh- und/oder Schieberverschluß dieser Art ist bereits aus der DE-PS 3540202 bekannt, von welcher der Oberbegriff des unabhängigen Anspruchs 1 ausgeht. In der DE-PS 3540202 ist ein im Gefäß liegender Verschluß beschrieben, an dessen beweglichen Verschlußteil eine Schubstange befestigt ist, die durch die Schmelze hindurch nach oben geführt ist. Dies bedingt eine aufwendige Feuerfestisolierung bzw. Abdichtung der Antriebselemente.A rotary and / or slide lock of this type is already known from DE-PS 3540202, from which the preamble of independent claim 1 is based. DE-PS 3540202 describes a closure located in the vessel, to the movable closure part of which a push rod is fastened which is guided upwards through the melt. This requires complex refractory insulation or sealing of the drive elements.

In der älteren Patentanmeldung P 3731600 ist auch ein Dreh- und Schieberverschluß der eingangs genannten Art beschrieben. Bei einer ersten Ausführung ist der Verschluß außen am Gefäß angeordnet (Außensystem). Bei einer zweiten Ausführung ist der Verschluß in dem Gefäß angeordnet, wobei das bewegliche Verschlußteil nach außen geführt ist (Innensystem mit Außenantrieb).In the older patent application P 3731600 a rotary and slide closure of the type mentioned is also described. In a first embodiment, the closure is on the outside of the vessel arranged (external system). In a second embodiment, the closure is arranged in the vessel, the movable closure part being guided outwards (internal system with external drive).

Ein Verschluß der eingangs genannten Art ist auch in der US-PS 3651998 beschrieben. Bei diesem ist ein unterhalb des Gefäßes vorgesehenes Antriebselement des bewegliches Verschlußteiles durch das unbewegliche Verschlußteil hindurchgeführt. Die Befestigung des Antriebselements am beweglichen Verschlußteil und die Durchführung durch das feuerfeste Verschlußteil sind bei Verschlüssen von Schmelzenausgüssen problematisch.A closure of the type mentioned is also described in US-PS 3651998. In this case, a drive element of the movable closure part provided below the vessel is passed through the immovable closure part. The attachment of the drive element to the movable closure part and the implementation through the refractory closure part are problematic when sealing melt spouts.

Für Verschlüsse der eingangs genannten Art sind mechanische, hydraulische oder pneumatische Antriebe bekannt. Derartige Antriebe sind konstruktiv aufwendig und platzraubend. Sie sind außerdem in der Regel wenig bedienungsfreundlich und erfordern eine Vielzahl von Zuleitungen, beispielsweise für Druckluft oder Hydrauliköl, sowohl für den Antrieb selbst als auch für dessen Steuerorgane. Hieraus ergibt sich eine sehr aufwendige Instandhaltung. Es ist auch meist schwierig, den Dreh- und/oder Schieberverschluß zur Erneuerung verschlissener Feuerfestteile zu handhaben. Denn hierfür sind in der Regel die Antriebselemente abzukoppeln.Mechanical, hydraulic or pneumatic drives are known for closures of the type mentioned at the beginning. Such drives are structurally complex and space-consuming. They are also generally not very user-friendly and require a large number of supply lines, for example for compressed air or hydraulic oil, both for the drive itself and for its control elements. This results in very complex maintenance. It is also usually difficult to handle the twist and / or slide lock to replace worn refractory parts. This is because the drive elements must be uncoupled as a rule.

Aus der EP-A-0251015 ist ein als Mehrwege-Flachsschieberventil ausgebildetes Mikroventil für flüssige Medien mit elektromagnetischem Antrieb, bestehend ausschließlich aus metallischen Teilen mit sehr kleinen Massen und Abmessungen, deren Fertigungstoleranzen im Bereich von wenigen Tausendstel Millimetern liegen, bekannt. Ein solches Ventil ist als Schieberverschluß am Ausguß eines Metallschmelze enthaltenden Behälters völlig ungeeignet, weil seine metallischen Ventilteile der durch die Metallschmelze verursachten thermischen, chemischen und mechanischen Beanspruchung nicht standhalten könnten.EP-A-0251015 discloses a microvalve designed as a multi-way flat slide valve for liquid media with an electromagnetic drive, consisting exclusively of metallic parts with very small masses and dimensions, the manufacturing tolerances of which are in the range of a few thousandths Millimeters are known. Such a valve is completely unsuitable as a slide closure on the spout of a container containing molten metal, because its metallic valve parts could not withstand the thermal, chemical and mechanical stress caused by the molten metal.

Aufgabe der Erfindung ist es, einen Verschluß der eingangs genannten Art vorzuschlagen, der die vorstehend aufgeführten Nachteile nicht aufweist und dessen Antriebselemente weder durch die Schmelze noch durch eine Gefäßwand hindurchgeführt sind.The object of the invention is to propose a closure of the type mentioned at the outset which does not have the disadvantages listed above and whose drive elements are not passed through the melt or through a vessel wall.

Erfindungsgemäß ist obige Aufgabe dadurch gelöst, daß der Drehund/oder Hubantrieb als ein elektromagnetischer Antrieb ausgebildet ist, der wenigstens eine im unbeweglichen Verschlußteil oder in einer Gefäßwandung angeordnete Magnetspule sowie wenigstens einen im beweglichen Verschlußteil angeordneten Magnetkern aufweist. Dadurch ist erreicht, daß an dem beweglichen Verschlußteil kein körperliches Antriebselement angreifen muß, das sich durch die Schmelze im Gefaß oder durch das unbewegliche Verschlußteil bzw. die Gefäßwand erstrecken muß. Es erübrigen sich damit mechanische, hydraulische oder pneumatische Antriebe und die mit diesen verbundenen Zuleitungen, Antriebselemente und Steuerorgane. Die für den elektromagnetischen Antrieb nötige Magnetspule ist am Gefäß oder am diesem gegenüber unbeweglichen Verschlußteil angeordnet. Ihre elektrischen Anschlüsse lassen sich damit einfach und ohne besonderen Platzbedarf anschließen. Hierbei ist es möglich, den Stromkreis des Antriebes in den elektrischen Steuerkreis der Gesamtanlage zu integrieren.According to the invention, the above object is achieved in that the rotary and / or lifting drive is designed as an electromagnetic drive which has at least one magnetic coil arranged in the immovable closure part or in a vessel wall and at least one magnetic core arranged in the movable closure part. It is thereby achieved that no physical drive element has to act on the movable closure part, which has to extend through the melt in the vessel or through the immovable closure part or the vessel wall. This eliminates the need for mechanical, hydraulic or pneumatic drives and the supply lines, drive elements and control elements connected to them. The magnetic coil required for the electromagnetic drive is arranged on the vessel or on the closure part which is immovable relative to it. Your electrical connections can be connected easily and without special space requirements. It is possible to integrate the drive circuit into the electrical control circuit of the overall system.

Bei einer zu Wartungszwecken nötigen Trennung des beweglichen Verschlußteils vom unbeweglichen Verschlußteil stellt der elektromagnetische Antrieb keine Behinderung dar.If the movable closure part is separated from the immovable closure part for maintenance purposes, the electromagnetic drive is not a hindrance.

Bei einem Dreh- und/oder Schieberverschluß, dessen unbewegliches Verschlußteil von einem quer zum Boden des Gefäßes liegenden Rohr und dessen bewegliches Verschlußteil von einem zu diesem Rohr konzentrischen Rohr gebildet ist, sieht die Erfindung vor, daß das bewegliche Rohr gegenüber dem unbeweglichen Rohr mittels wenigstens eines im beweglichen Rohr angeordneten Magnetkerns und wenigstens einer im unbeweglichen Rohr und/oder in der Gefäßwandung angeordneten Magnetspule dreh- und/oder verschiebbar ist, oder daß mittels der wenigstens einen Magnetspule das bewegliche Rohr um die Achse des unbeweglichen Rohres drehbar und mittels einer anderen Magnetspule in Achsrichtung des unbeweglichen Rohres verschiebbar ist.In the case of a rotary and / or slide closure, the immovable closure part of which is formed by a tube lying transversely to the bottom of the vessel and the movable closure part of which is a tube concentric with this tube, the invention provides that the movable tube is at least opposite to the immovable tube by means of one arranged in the movable tube magnetic core and at least one arranged in the immovable tube and / or in the vessel wall solenoid is rotatable and / or displaceable, or that by means of the at least one solenoid the movable tube is rotatable about the axis of the immovable tube and by means of another magnet coil is displaceable in the axial direction of the immovable tube.

Bei einem Dreh- und/oder Schieberverschluß, dessen unbewegliches Verschlußteil außerhalb des Gefäßes angeordnet und in ihm das bewegliche Verschlußteil gelagert ist, ist gemäß der Erfindung vorgesehen, daß der elektromagnetische Antrieb sich aus mindestens einer am Ende des unbeweglichen Verschlußteils angeordneten Magnetspule und mindestens einem am entsprechenden Ende des beweglichen Verschlußteils angeordneten Magnetkern zusammensetzt.In a rotary and / or slide closure, the immovable closure part is arranged outside the vessel and the movable closure part is mounted in it, according to the invention it is provided that the electromagnetic drive consists of at least one magnet coil arranged at the end of the immovable closure part and at least one on corresponding end of the movable closure member arranged magnetic core.

Bei einem Dreh- und/oder Schieberverschluß, dessen unbewegliches Verschlußteil innen im Gefäß angeordnet und dessen bewegliches Verschlußteil seitlich aus diesem herausgeführt ist, ist der elektromagnetische Antrieb erfindungsgemäß außerhalb des Gefäßes angeordnet und besteht aus mindestens einer am außenliegenden Ende des unbeweglichen Verschlußteils oder an einer Seitenwand des Gefäßes angeordneten Magnetspule und mindestens einem am entsprechenden Ende des beweglichen Verschlußteils angeordneten Magnetkern.In the case of a rotary and / or slide closure, the immovable closure part of which is arranged on the inside in the vessel and the movable closure part of which is led out laterally of this, this is The electromagnetic drive according to the invention is arranged outside the vessel and consists of at least one magnet coil arranged on the outer end of the immovable closure part or on a side wall of the vessel and at least one magnet core arranged on the corresponding end of the movable closure part.

Bei einem Dreh- und/oder Schieberverschluß für einen langgestreckten Ausguß eines Metallschmelze enthaltenden Gefäßes, mit einem das unbewegliche Verschlußteil bildenden Stator und einem das bewegliche Verschlußteil bildenden Rotor, greift gemäß der Erfindung mindestens an einem der beiden axialen Enden des Rotors ein elektromagnetischer Antrieb an, wobei vorzugsweise im Rotor wenigstens zwei Magnetkerne und im Stator oder in der Gefäßwandung wenigstens zwei den Magnetkernen zugeordnete Magnetspulen zur Drehung des Rotors gegenüber dem Stator angeordnet sind.In the case of a rotary and / or slide closure for an elongated pouring of a vessel containing molten metal, with a stator forming the immovable closure part and a rotor forming the movable closure part, an electromagnetic drive acts on at least one of the two axial ends of the rotor according to the invention, wherein at least two magnetic cores are preferably arranged in the rotor and at least two magnetic coils assigned to the magnetic cores for rotating the rotor relative to the stator are arranged in the stator or in the vessel wall.

Die Erfindung wird nachfolgend anhand meherer Ausführungsbeispiele unter Bezugnahme auf die Zeichnung näher erläutert.The invention is explained in more detail below using several exemplary embodiments with reference to the drawing.

In der Zeichnung zeigen:

  • Figur 1 einen Drehverschluß schematisch im Schnitt,
  • Figur 2 einen weiteren Drehverschluß schematisch im Schnitt,
  • Figur 3 einen weiteren Drehverschluß schematisch im Schnitt,
  • Figur 4 einen Dreh- und Schieberverschluß schematisch im Schnitt,
  • Figur 5 einen zweiten Dreh- und Schieberverschluß schematisch im Schnitt,
  • Figur 6 einen dritten Dreh- und Schieberverschluß schematisch im Schnitt,
  • Figur 7 einen Drehverschluß für einen langgestreckten Ausguß im Schnitt längs der Linie VII-VII nach Fig. 8 und
  • Figur 8 einen Schnitt längs der Linie VIII -VIII nach Fig. 7.
The drawing shows:
  • FIG. 1 shows a rotary closure schematically in section,
  • FIG. 2 shows a further rotary closure schematically in section,
  • FIG. 3 shows a further rotary closure schematically in section,
  • FIG. 4 shows a rotary and slide closure schematically in section,
  • FIG. 5 shows a second rotary and slide closure, schematically in section,
  • 6 shows a third rotary and slide closure schematically in section,
  • Figure 7 is a twist lock for an elongated spout in section along the line VII-VII of Fig. 8 and
  • 8 shows a section along the line VIII - VIII of FIG. 7.

Am Boden (1) eines Gefäßes für eine Metallschmelze ist ein Verschluß (2) angeordnet.A closure (2) is arranged on the bottom (1) of a vessel for a molten metal.

Der Verschluß (2) nach den Figuren 1 bis 4 weist als unbewegliches Verschlußteil ein feuerfestes Rohr (3) aus keramischem Material auf, dessen Achse senkrecht zum Boden (1) steht. Das Rohr (3) ist im Boden (1) befestigt. Innerhalb des Gefäßes ist es mit zwei oder mehreren Durchbrechungen (4) versehen. Auf das Rohr (3) ist als bewegliches Verschlußteil ein weiteres Rohr (5) aus keramischem Material aufgesteckt. Das Rohr (5) ist oben geschlossen. An seinem Umfang ist es mit Durchbrechungen (6) versehen, die ebenso groß sind wie die Durchbrechungen (4). Das Rohr (5) ist um die Achse des Rohres (3) dichtend drehbar, so daß in der Öffnungsstellung des Verschlusses (2) die Durchbrechungen (4, 6) fluchten und in der Schließstellung die Durchbrechungen (6) vom Rohr (3) abgedeckt sind.The closure (2) according to FIGS. 1 to 4 has a refractory tube (3) made of ceramic material, the axis of which is perpendicular to the floor (1). The tube (3) is fixed in the bottom (1). It is provided with two or more openings (4) within the vessel. A further tube (5) made of ceramic material is attached to the tube (3) as a movable closure part. The tube (5) is closed at the top. It is with its scope Provide openings (6) that are the same size as the openings (4). The tube (5) can be rotated sealingly about the axis of the tube (3), so that the openings (4, 6) are aligned in the open position of the closure (2) and the openings (6) are covered by the tube (3) in the closed position are.

Als Drehantrieb für das Rohr (5) ist ein elektromagnetischer Antrieb (7) vorgesehen. Dieser weist einen oder mehrere permanentmagnetische Magnetkerne (8) und eine oder mehrere Magnetspulen (9) auf. Der bzw. die Magnetkerne (8) sind in dem beweglichen Verschlußteil (5) angeordnet. Die zugehörigen Magnetspulen (9) sind am oder im Boden (1) oder im unbeweglichen Verschlußteil (3) angeordnet. Ihre Anschlußleitungen (10) sind nach außen geführt.An electromagnetic drive (7) is provided as the rotary drive for the tube (5). This has one or more permanent magnetic magnetic cores (8) and one or more magnetic coils (9). The magnetic core (s) (8) are arranged in the movable closure part (5). The associated magnetic coils (9) are arranged on or in the floor (1) or in the immovable closure part (3). Your connecting lines (10) are led to the outside.

Beim Ausführungsbeispiel nach Figur 1 sind in das Rohr (5) zwei Magnetkerne (8) eingebaut. Es können jedoch auch mehr als zwei Magnetkerne (8) am Umfang verteilt angeordnet sein. Im Prinzip kann auch ein Magnetkern genügen. Jedem Magnetkern (8) ist eine Magnetspule (9) zugeordnet. Diese ist am Boden (1) dicht neben dem Rohr (5) angeordnet. Die Magnetspulen (9) sitzen jeweils in einem oder in einem gemeinsamen Schutzmantel (11), der die Magnetspulen (9) gegen die Schmelze abdeckt.In the embodiment of Figure 1, two magnetic cores (8) are installed in the tube (5). However, more than two magnetic cores (8) can also be distributed around the circumference. In principle, a magnetic core can also suffice. A magnetic coil (9) is assigned to each magnetic core (8). This is arranged on the floor (1) close to the pipe (5). The magnetic coils (9) are each located in one or in a common protective jacket (11) which covers the magnetic coils (9) against the melt.

Die Anordnung kann so gestaltet sein, daß durch eine entsprechende Strombeaufschlagung der Magnetspulen (9) über die Anschlußleitungen (10) das Rohr (5) in Schließstellung in die eine Richtung und in Öffnungsstellung in die Gegenrichtung gedreht wird.The arrangement can be designed in such a way that the tube (5) is rotated in the closed position in one direction and in the open position in the opposite direction by a corresponding current application to the magnetic coils (9) via the connecting lines (10).

Es kann jedoch auch vorgesehen sein, das Rohr (5) nur in einer Richtung zu drehen. Denn eine Schließstellung liegt jeweils zwischen zwei benachbarten Öffnungsstellungen, in denen die Durchbrechnungen (4, 6) fluchten.However, it can also be provided that the tube (5) is only rotated in one direction. Because a closed position lies between two adjacent open positions, in which the openings (4, 6) are aligned.

Das Ausführungsbeispiel nach Figur 2 unterscheidet sich vom Ausführungsbeispiel nach Figur 1 dadurch, daß die Magnetspulen (9) nicht außerhalb des Rohres (5) am Boden (1) angeordnet, sondern in dem Rohr (3) integriert sind. Dadurch erübrigt sich der Schutzmantel (11) und es entfällt der notwendige Spalt (12) zwischen dem Schutzmantel (11) und dem Rohr (5).The exemplary embodiment according to FIG. 2 differs from the exemplary embodiment according to FIG. 1 in that the magnetic coils (9) are not arranged outside the tube (5) on the bottom (1) but are integrated in the tube (3). This eliminates the need for the protective jacket (11) and eliminates the necessary gap (12) between the protective jacket (11) and the pipe (5).

Beim Ausführungsbeispiel nach Fig. 3 ist an dem Rohr (5) ein abgewinkelter Rand (13) ausgebildet. In diesen sind die Magnetkerne (8) integriert. Die Magnetspulen (9) sind hier in den Boden (1) integriert. Sie sind dabei durch den Rand (13) gegen die Schmelze abgedeckt.3, an angled edge (13) is formed on the tube (5). The magnetic cores (8) are integrated in these. The magnetic coils (9) are integrated in the base (1) here. They are covered by the edge (13) against the melt.

Die Funktionsweise der Ausführung nach den Figuren 2 und 3 entspricht der des Ausführungsbeispiels nach Figur 1.The mode of operation of the embodiment according to FIGS. 2 and 3 corresponds to that of the embodiment according to FIG. 1.

Beim Ausführungsbeispiel nach Figur 4 ist das Rohr (5) nicht nur um die Achse drehbar, sondern auch axial verschieblich. In der in Figur 4 dargestellten Stellung sind die Durchbrechungen (6) vom Rohr (3) geschlossen. Sie fluchtend also nicht mit dessen Durchbrechungen (4). Die Durchbrechungen (4, 6) lassen sich durch Drehen um die Achse erst dann fluchtend ausrichten, wenn das Rohr (5) nach oben bewegt ist. Hierfür ist eine zur genannten Achse konzentrische weitere Magnetspule (14) im Rohr (3) angeordnet.In the embodiment of Figure 4, the tube (5) is not only rotatable about the axis, but also axially displaceable. In the position shown in Figure 4, the openings (6) are closed by the tube (3). So you are not in alignment with its openings (4). The openings (4, 6) can only be aligned by turning around the axis when the tube (5) is moved upwards. For this purpose, a further magnetic coil (14) is arranged in the tube (3) which is concentric with the axis mentioned.

Dieser ist ein weiterer permanentmagnetischer Magnetkern (15) oder ein magnetisierbarer Eisenkern zugeordnet, der in dem Rohr (5) integriert ist. Die weitere Magnetspule (14) könnte auch in dem Boden (1) integriert sein.This is assigned a further permanent magnetic core (15) or a magnetizable iron core, which is integrated in the tube (5). The further magnetic coil (14) could also be integrated in the base (1).

Ist die weitere Magnetspule (14) stromdurchflossen, dann wird das Rohr (5) so angehoben, daß Durchbrechungen (6) in der Ebene der Durchbrechungen (4) liegen. Beim Umpolen bzw. Abschalten des Stroms durch die Magnetspule (14) wird das Rohr (5) wieder nach unten bewegt. Dies geschieht dann, wenn ein Eisenkern (15) vorgesehen ist unter dem statischen Druck der Schmelze.If the further magnetic coil (14) has current flowing through it, the tube (5) is raised so that openings (6) lie in the plane of the openings (4). When the polarity is reversed or the current is switched off by the magnetic coil (14), the tube (5) is moved down again. This happens when an iron core (15) is provided under the static pressure of the melt.

Zum Drehen des Rohres (5) sind die beschriebenen Magnetkerne (8) und die Magnetspulen (9) vorgesehen.The described magnetic cores (8) and the magnetic coils (9) are provided for rotating the tube (5).

Beim Ausführungsbeispiel nach Figur 5 ist das unbewegliche Verschlußteil (3) außerhalb des Gefäßes unten am Boden (1) befestigt. In diesem ist verschieblich und drehbar das bewegliche Verschlußteil (5) gelagert, das eine radiale Durchbrechung (6) aufweist, welche in der Offenstellung mit radialen Durchbrechungen (4) fluchtet. In dem beweglichen Verschlußteil (5) sind Magnetkerne (8) integriert, denen Magnetspulen (9) zugeordnet sind. Durch eine entsprechende Strombeaufschlagung der Magnetspulen (9) wird das bewegliche Verschlußteil (5) so gedreht, daß es die Durchbrechungen (4) schließt. Eine weitere Magnetanordnung kann zur axialen Verschiebung des beweglichen Verschlußteils (5) vorgesehen sein.In the exemplary embodiment according to FIG. 5, the immovable closure part (3) is fastened to the bottom (1) outside of the vessel. The movable closure part (5), which has a radial opening (6) and is aligned with radial openings (4) in the open position, is mounted displaceably and rotatably. Magnetic cores (8), to which magnetic coils (9) are assigned, are integrated in the movable closure part (5). The movable closure part (5) is rotated by a corresponding current application of the magnetic coils (9) in such a way that it closes the openings (4). A further magnet arrangement can be provided for the axial displacement of the movable closure part (5).

Beim Ausführungsbeispiel nach Figur 6 ist das unbewegliche Verschlußteil (3) unten im Gefäß angeordnet und das bewegliche Verschlußteil (5) seitlich nach außen geführt. Letzteres ist im unbeweglichen Verschlußteil (3) gelagert und weist als Durchbrechung (6) einen abgewinkelten Kanal auf, welcher in Offenstellung des Verschlusses in eine als Auslaufkanal ausgebildete Durchbrechung (4) des unbeweglichen Verschlußteils (3) mündet. Zum Drehantrieb des beweglichen Verschlußteils (5) sind außerhalb des Gefäßes die Magnetspulen (9) vorgesehen, denen im beweglichen Verschlußteil (5) integrierte Magnetkerne (8) zugeordnet sind.In the exemplary embodiment according to FIG. 6, the immovable closure part (3) is arranged at the bottom in the vessel and the movable closure part (5) is guided laterally outwards. The latter is mounted in the immovable closure part (3) and, as the opening (6), has an angled channel which, when the closure is open, opens into an opening (4) in the immovable closure part (3) designed as an outlet channel. The magnetic coils (9) are provided outside the vessel for the rotary drive of the movable closure part (5), with which magnetic cores (8) integrated in the movable closure part (5) are assigned.

Beim Ausführungsbeispiel nach den Figuren 7 und 8 ist der Verschluß (2) für einen langgestreckten Ausguß am Boden (1) eines Metallschmelze enthaltenden Gefäßes vorgesehen, der zum Gießen von Dünnbrammen geeignet ist. Als unbewegliches Verschlußteil ist ein Stator (17) vorgesehen, der einen langgestreckten Schlitz (18) bildet. Der Stator (17) ist in ein Oberteil (19) und ein Unterteil (20) geteilt. In dem Stator (17) ist ein Rotor (21) als bewegliches Verschlußteil gelagert. Der Rotor (21) ist um eine zum boden (1) parallele Achse im Stator (17) drehbar. Er weist eine Durchbrechung (22) auf, deren Durchlaßquerschnitt dem Durchlaßquerschnitt des Schlitzes (18) gleich ist.In the exemplary embodiment according to FIGS. 7 and 8, the closure (2) is provided for an elongated spout on the bottom (1) of a vessel containing molten metal, which is suitable for casting thin slabs. A stator (17) is provided as an immovable closure part and forms an elongated slot (18). The stator (17) is divided into an upper part (19) and a lower part (20). A rotor (21) is mounted in the stator (17) as a movable closure part. The rotor (21) can be rotated about an axis parallel to the base (1) in the stator (17). It has an opening (22), the passage cross section of which is the same as the passage cross section of the slot (18).

In dem Unterteil (20) des Stators (17) sind seitlich des Schlitzes (18) je zwei Magnetspulen (9) angeordnet, denen je ein Magnetkern (8) zugeordnet ist. Die Magnetkerne (8) sind in den Rotor (21) integriert.In the lower part (20) of the stator (17), two magnetic coils (9) are arranged on each side of the slot (18), each of which has a magnetic core (8) assigned to it. The magnetic cores (8) are integrated in the rotor (21).

In den Figuren 7 und 8 ist der Rotor (21) in Offenstellung dargestellt. Seine Durchbrechung (22) fluchtet dabei mit dem Schlitz (18). Der Rotor (21) ist durch einen entsprechenden Stromfluß durch die Magnetspulen (9) in diese Stellung gebracht. Durch eine Änderung des Stromflusses durch die Magnetspulen (9) läßt sich der Rotor (21) in eine Verdrehstellung bringen, in der die Durchbrechung (22) nicht mehr mit dem Schlitz (18) fluchtet und der Rotor (21) den Schlitz (18) schließt.In Figures 7 and 8, the rotor (21) is shown in the open position. Its opening (22) is aligned with the slot (18). The rotor (21) is brought into this position by a corresponding current flow through the magnet coils (9). By changing the current flow through the magnetic coils (9), the rotor (21) can be brought into a rotational position in which the opening (22) no longer aligns with the slot (18) and the rotor (21) slits the slot (18). closes.

Bei dem Ausführungsbeispiel nach Figur 7 und 8 kann der Rotor (21) auch so verlängert sein, daß er in Richtung seiner Drehachse seitlich über das Gefäß hinaussteht. Es ist dann möglich, den beschriebenen elektromagnetischen Antrieb außerhalb des Gefäßes anzuordnen.In the exemplary embodiment according to FIGS. 7 and 8, the rotor (21) can also be extended such that it projects laterally beyond the vessel in the direction of its axis of rotation. It is then possible to arrange the electromagnetic drive described outside the vessel.

Die Magnetspulen (9 bzw. 14) des elektromagnetischen Antriebs können auch so angesteuert werden, daß dann, wenn das bewegliche Verschlußteil (5 bzw. 20) in seiner Öffnungsstellung oder in seiner Schließstellung steht, es in eine mit einem geringen Hub oszillierende Bewegung versetzt wird. Dadurch kann das Erstarren der Schmelze im Bereich zweier Flächen, die gegeneinander beweglich sein sollen, um das bewegliche Verschlußteil von seiner Schließstellung in seine Öffnungsstellung oder umgekehrt zu bringen, verhindert werden.The solenoid coils (9 and 14) of the electromagnetic drive can also be controlled so that when the movable closure part (5 or 20) is in its open position or in its closed position, it is set into an oscillating movement with a small stroke . As a result, the solidification of the melt can be prevented in the area of two surfaces which are to be movable relative to one another in order to bring the movable closure part from its closed position into its open position or vice versa.

Claims (7)

1. Rotary and/or sliding gate valve for an outlet of a vessel containing a metal melt with a refractory, stationary valve member and a refractory valve member which is sealingly movable with respect to it in rotation and/or in sliding and which is actuable by means of a rotary and/or reciprocating drive, characterised in that the rotary and/or reciprocating drive is constructed as an electromagnetic drive (7) which has at least one field coil (9) disposed in the fixed valve member (3, 17) or in a vessel wall (1) and at least one magnet core (8) disposed in the movable valve member (5, 21).
2. Rotary and/or sliding gate valve as claimed in Claim 1, the stationary valve member being constituted by a tube (3) lying transversely to the base (1) of the vessel and the movable valve member being constituted by a tube (5) concentric with this tube (3), characterised in that the movable tube (5) is movable in rotation and/or sliding with respect to the stationary tube (3) by means of at least one magnet core (8) disposed in the movable tube (5) and at least one field coil (9) disposed in the stationary tube (3) and/or in the vessel wall (1) (Figures 1 to 4).
3. Rotary and/or sliding gate valve as claimed in Claim 2, characterised in that the movable tube (5) is rotatable about the axis of the stationary tube (3) by means of the at least one field coil (9) and is slidable in the axial direction of the stationary tube (3) by means of another field coil (40).
4. Rotary and/or sliding gate valve as claimed in Claim 1, wherein the stationary valve member is arranged externally of the vessel and the movable valve member is mounted in it, characterised in that the electromagnetic drive (7) is composed of at least one field coil (9) arranged at the end of the stationary valve member (3) and at least one magnet core (8) arranged at the corresponding end of the movable valve member (5) (Fig. 5).
5. Rotary and/or sliding gate valve as claimed in Claim 1, wherein the stationary valve member is arranged in the interior of the vessel and the movable valve member passes laterally out of it, characterised in that the electromagnetic drive (7) is arranged externally of the vessel and is constituted by at least one field coil (9) arranged at the outer end of the stationary valve member (3) or on a side wall (23) of the vessel and at least one magnet core (8) arranged at the corresponding end of the movable valve member (5) (Fig. 6).
6. Rotary and/or sliding gate valve as claimed in Claim 1 for an elongate outlet of a vessel containing a metal melt with a stator constituting the stationary valve member and a rotor constituting the movable valve member, characterised in that an electromagnetic drive (7) engages at least one of the two axial ends of the rotor (21) (Figures 7 and 8).
7. Rotary and/or sliding gate valve as claimed in Claim 6, characterised in that arranged in the rotor (21) there are at least two magnet cores (8) and arranged in the stator (17) or in the vessel wall (1) there are at least two field coils (9) associated with the magnet cores (8) for rotating the rotor (21) with respect to the stator (17).
EP89102653A 1988-03-18 1989-02-16 Turning and/or sliding lock and its locking parts Expired - Lifetime EP0332867B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89102653T ATE71569T1 (en) 1988-03-18 1989-02-16 ROTARY AND/OR SLIDE CLOSURE AND ITS CLOSURE PARTS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3809072A DE3809072A1 (en) 1988-03-18 1988-03-18 TURN AND / OR SLIDE LOCK AND ITS LOCKING PARTS
DE3809072 1988-03-18

Publications (2)

Publication Number Publication Date
EP0332867A1 EP0332867A1 (en) 1989-09-20
EP0332867B1 true EP0332867B1 (en) 1992-01-15

Family

ID=6350059

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EP89102653A Expired - Lifetime EP0332867B1 (en) 1988-03-18 1989-02-16 Turning and/or sliding lock and its locking parts

Country Status (13)

Country Link
US (1) US4905876A (en)
EP (1) EP0332867B1 (en)
JP (1) JPH0211261A (en)
KR (1) KR890014932A (en)
CN (1) CN1017321B (en)
AT (1) ATE71569T1 (en)
BR (1) BR8901197A (en)
CA (1) CA1311611C (en)
DE (2) DE3809072A1 (en)
ES (1) ES2030221T3 (en)
GR (1) GR3004184T3 (en)
SU (1) SU1722219A3 (en)
ZA (1) ZA891668B (en)

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CN104959591A (en) * 2015-07-24 2015-10-07 山崎精密机械无锡有限公司 Ladle sliding gate detecting device

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CN104959591A (en) * 2015-07-24 2015-10-07 山崎精密机械无锡有限公司 Ladle sliding gate detecting device

Also Published As

Publication number Publication date
SU1722219A3 (en) 1992-03-23
DE58900714D1 (en) 1992-02-27
US4905876A (en) 1990-03-06
BR8901197A (en) 1989-10-31
JPH0211261A (en) 1990-01-16
DE3809072A1 (en) 1989-09-28
ZA891668B (en) 1989-11-29
ATE71569T1 (en) 1992-02-15
EP0332867A1 (en) 1989-09-20
CN1017321B (en) 1992-07-08
GR3004184T3 (en) 1993-03-31
CN1037102A (en) 1989-11-15
DE3809072C2 (en) 1990-10-31
ES2030221T3 (en) 1992-10-16
CA1311611C (en) 1992-12-22
KR890014932A (en) 1989-10-25

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