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EP0040692A1 - Rotary valve closure for metallurgical vessels - Google Patents

Rotary valve closure for metallurgical vessels Download PDF

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Publication number
EP0040692A1
EP0040692A1 EP81102759A EP81102759A EP0040692A1 EP 0040692 A1 EP0040692 A1 EP 0040692A1 EP 81102759 A EP81102759 A EP 81102759A EP 81102759 A EP81102759 A EP 81102759A EP 0040692 A1 EP0040692 A1 EP 0040692A1
Authority
EP
European Patent Office
Prior art keywords
stationary
rotary
closure
tubular body
refractory
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
EP81102759A
Other languages
German (de)
French (fr)
Other versions
EP0040692B1 (en
Inventor
Ernst Meier
Herbert Bachmann
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.)
Stopinc AG
Original Assignee
Stopinc AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Stopinc AG filed Critical Stopinc AG
Priority to AT81102759T priority Critical patent/ATE4785T1/en
Publication of EP0040692A1 publication Critical patent/EP0040692A1/en
Application granted granted Critical
Publication of EP0040692B1 publication Critical patent/EP0040692B1/en
Expired legal-status Critical Current

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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
    • B22D41/28—Plates therefor
    • 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
    • B22D41/26—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 characterised by a rotatively movable plate

Definitions

  • the invention relates to a rotary slide closure for metallurgical melting vessels according to the preamble of claim 1.
  • the object of the present invention is a practical design of a rotary slide closure in such a way that simple maintenance is also possible with a sliding surface which is displaced far towards the interior of the vessel of the closure and a quick change of the refractory closure body are possible.
  • the invention offers the possibility of using the widespread and, for the manufacture, simple plate shape of the refractory closure bodies also in the case of deep installation. It can be adjusted with little effort, namely by adjusting the pipe length, the installation depth to the respective circumstances, such as. B. changing thickness of the vessel lining, etc.
  • the mechanically more sensitive parts of the closure such as spring elements and bearings, can be accommodated outside the vessel jacket in the region of relatively low temperatures.
  • fire-proof in the context of the present invention is of course generally to be understood in such a way that the relevant parts or materials that come into direct contact with the melt are sufficiently resistant to it should.
  • the rotary slide closure shown in FIG. 1 is attached to a metallurgical melt vessel for the purpose of emptying the melt contained in it, by being detachably fastened to the metallic vessel jacket 2 (or a welded-in intermediate plate, for example, welded into the jacket plate) by means of several screws 19. From the melting pot part of the refractory lining 4 lying inside the vessel jacket 2 is shown. In order to accommodate the closure, a refractory sleeve 6, which is arranged above an opening 3 of the vessel jacket and to which a discharge stone 8 provided with a wide funnel opening 9 is connected via an annular mortar joint 7, is let into it.
  • the refractory parts 6 and 8 can in each case remain installed for a longer period of use and, for example, only need to be replaced together with the lining 4.
  • the upper end face of the closure is separated from the underside of the outlet stone 8 by an annular mortar joint 1 which surrounds the opening 9 and an insulating layer 5 adjoining it on the outside, preferably made of a fireproof felt mat; Parts 1 and 5 must be replaced when the locking unit is reinstalled.
  • the stationary, refractory pouring body 20 lying below the opening 9 and the rotatable, fireproof slide body 40 are designed as flat, preferably identical plates.
  • the sliding surface 23, on which the slide plate 40 rests under prestress on the pouring plate 20, is located on the side of the vessel shell 2 facing the interior of the vessel, as a result of which the pouring area is kept at a relatively high temperature by the melt contained in the vessel; this is further supported by the wide opening 9, which creates a large contact area between the melt and the plate 20.
  • an opening 42 present in it can be brought into agreement with the stationary opening 22 or the latter opening can be closed; the slide plate 40 can, as usual, also contain several openings.
  • the stationary plate 20 and the slide plate 40 are each held at one end of a stationary or rotatable closure part.
  • the stationary as well as the rotatable closure part are essentially designed as coaxial tubular bodies; the slide plate 40 is held on the rotatable tubular body 30 indirectly via an intermediate carrier 34.
  • the stationary and the rotatable one Closure part are guided radially and axially to one another via two roller bearings 24, 25.
  • the stationary closure part is divided into several tubular longitudinal sections 10, 11 and 12. At the junctures of these parts, heat-insulating layers 26 and 27, 28 are inserted, which greatly restrict the heat dissipation to the outside via the fixed, metallic tubular body from the closure area.
  • the end section 10 is detachably connected to the middle section 11 by means of a plurality of screws 15 and has an end face 14 in which the plate 20 is inserted.
  • the pipe sections 11 and 12 are each provided with a flange 16 and 17 and connected to this by means of a number of screws 18.
  • One flange 16 is used for positioning and fastening (screws 19) the entire closure unit on the vessel shell 2.
  • the tubular body 30 of the rotatable closure part is mounted on the tube section 12 lying outside the vessel shell.
  • a tag wedge 35 guided in the latter is used, which lies against a lateral driving surface of the otherwise circular plate 40.
  • the stationary plate 20 is secured against rotation in the bottom surface 14 of the end section 10 by means of a wedge 21.
  • a thermal insulation 43 is inserted in the intermediate carrier 34, which inhibits the heat radiation from the slide plate to the outside.
  • a pouring tube 44 is also used, which protects the metallic components of the closure from the outflowing melt.
  • the two parts 43 and 44 can be made in one piece or separately from light and porous, e.g. fibrous or flaky refractory material.
  • the intermediate carrier 34 rests on the upper ends of three pressure rams 38 which, offset from the driving bolts 37, are guided in the tubular body 30 so as to be longitudinally movable.
  • a ring 46 presses against the lower or outer end of the plunger 38, which ring is e.g. three spring members 48 distributed around the circumference is acted upon. These are preferably disc springs 48 which are stacked in packages on a stud bolt 47 and are preloaded with a nut 49.
  • the intermediate support 34 with the plate 40 is able to perform a certain wobble movement relative to the tubular body 30, the full support of the plate 40 on the plate 20 (sliding surface 23) is maintained during the rotation even if the rotatable tubular body is not precise should be aligned coaxially to the stationary tubular body.
  • a turntable 31 is fastened by means of several screws 33, which with the toothing 32 serves the rotary drive (by means of a chain or spur gear) of the rotatable closure part.
  • the slewing ring 31 is preferably bell-shaped and engages over the outer end of the stationary closure part, as a result of which the toothing 32 comes to lie axially between the bearings 24 and 25.
  • the rotary slide closure described can be removed as a whole by loosening the screws 19 from the depression formed by the refractory parts 6 and 8. As a result, the screws 15 are accessible and the end section 10 of the fixed closure part can be loosened for the purpose of checking or replacing the plates 20 and 40. After the end section 10 has been reattached and any resetting of the spring members 48, the closure unit as a whole can be reinstalled. There is also the possibility of leaving the screws 19 and, on the other hand, loosening the screws 18 connecting the flanges 16 and 17, whereupon the pipe section 12 with the rotatable Ver mounted thereon final part can be removed, but the stationary pipe sections 10 'and 11 and the plate 20 remain installed.
  • the described closure construction enables particularly simple maintenance and, in particular, rapid replacement of the refractory closure bodies 20 and 40.
  • the construction can also be very easily adapted to the required installation depth or position of the sliding surface 23 with respect to the vessel shell, namely only by changing the length of the tube section 11 and the rotatable tubular body 30; if necessary, this can be achieved by inserting intermediate rings of different lengths on these parts.
  • the rotary slide closure according to the invention can be used for casting various melts, in particular also non-ferrous heavy metals or light metals from the respective melting vessels. Operation is not only possible in the vertical position shown, but also with a horizontal or inclined axis of rotation.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Processing Of Solid Wastes (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Memory System Of A Hierarchy Structure (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Heat Treatment Of Articles (AREA)
  • Coating Apparatus (AREA)
  • Basic Packing Technique (AREA)
  • Packages (AREA)

Abstract

A rotary sliding closure unit for use in a liquid melt container extends inwardly through the jacket of the container and into the lining thereof to selectively block and unblock a pouring opening of the container. The unit includes a stationary refractory plate positioned within the lining and having therethrough a flow passage in communication with the pouring opening, and a rotary refractory plate positioned in sliding abutting contact with the stationary refractory plate and having therethrough at least one flow passage to be selectively moved into and out of alignment with the flow passage of the stationary refractory plate. The two refractory plates have complementary abutting relative sliding surfaces located within the interior of the jacket of the container. A stationary tube member extends through the jacket and into the lining and has an inner end grasping the stationary refractory plate. An intermediate member fixes the rotary refractory plate, and a rotary tube member extends through the jacket coaxially within the stationary tube member. The intermediate member is fixed with respect to the inner end of the rotary tube member to rotate therewith, but to enable relative axial movement therebetween. The intermediate member is axially urged away from the rotary tube member to thus urge the rotary refractory plate into pressure contact against the stationary refractory plate.

Description

Die Erfindung betrifft einen Drehschiebeverschluss für metallurgische Schmelzegefässe nach dem Gattungsbegriff des Anspruches 1.The invention relates to a rotary slide closure for metallurgical melting vessels according to the preamble of claim 1.

Im Gegensatz zu der am meisten verbreiteten Bauweise von Schiebeverschlüssen, bei welcher alle Teile des Verschlusses sich ausserhalb des Schmelzegefässes befinden, sind auch Konstruktionen von Drehschiebeverschlüssen vorgeschlagen worden, deren Gleitfläche, d. h. die Dichtfläche zwischen den feuerfesten Verschlusskörpern, innerhalb des metallischen Gefässmantels, also auf der der Schmelze zugekehrten Seite desselben liegt (AT-PS 165 292, AT-PS 171 189, DE-OS 19 10 247, DE-OS 20 43 588). Mit diesen Anordnungen wurde u. a. angestrebt, den Ausgussbereich und die Gleitfläche des Verschlusses vom schmelzflüssigen Gefässinhalt her dauernd warm zu halten und dadurch ein Erstarren der Schmelze in diesem Bereich zu vermeiden. Hierfür mussten bei den bekannten Konstruktionen allerdings schwerwiegende Nachteile in Kauf genommen werden, wie umständlicher Ein- und Ausbau sowie vor allem schwierig herzuzustellende und/oder voluminöse Feuerfestteile; zu einem praktischen Einsatz der genannten Vorschläge ist es bisher nicht gekommen.In contrast to the most common construction of slide closures, in which all parts of the closure are outside the melting vessel, designs of rotary slide closures have also been proposed, the sliding surface, i. H. the sealing surface between the refractory closure bodies, within the metallic vessel shell, that is on the side facing the melt thereof (AT-PS 165 292, AT-PS 171 189, DE-OS 19 10 247, DE-OS 20 43 588). With these arrangements u. a. the aim is to keep the pouring area and the sliding surface of the closure permanently warm from the molten contents of the vessel, thereby avoiding solidification of the melt in this area. For this, however, serious disadvantages had to be accepted in the known constructions, such as complicated installation and removal and, above all, difficult-to-manufacture and / or voluminous refractory parts; The proposals mentioned have not yet been put into practical use.

Aufgabe der vorliegenden Erfindung ist eine praxisgerechte Gestaltung eines Drehschiebeverschlusses in der Weise, dass auch bei weit gegen das Gefässinnere hin verlagerter Gleitfläche eine einfache Wartung des Verschlusses und ein rascher Wechsel der feuerfesten Verschlusskörper möglich sind.The object of the present invention is a practical design of a rotary slide closure in such a way that simple maintenance is also possible with a sliding surface which is displaced far towards the interior of the vessel of the closure and a quick change of the refractory closure body are possible.

Diese Aufgabe wird erfindungsgemäss durch die kennzeichnenden Merkmale des Anspruches 1 gelöst. Die Erfindung bietet einerseits die Möglichkeit, die verbreitete und für die Herstellung einfache Plattenform der feuerfesten Verschlusskörper auch beim tiefliegenden Einbau anzuwenden. Dabei lässt sich mit geringem Aufwand, nämlich durch Anpassung der Rohrlänge, die Einbautiefe den jeweiligen Gegebenheiten anpassen, wie z. B. wechselnder Dicke der Gefässauskleidung usw. Die mechanisch empfindlicheren Teile des Verschlusses, wie Federorgane und Lager, lassen sich dabei ausserhalb des Gefässmantels im Bereich relativ geringer Temperaturen unterbringen.According to the invention, this object is achieved by the characterizing features of claim 1. On the one hand, the invention offers the possibility of using the widespread and, for the manufacture, simple plate shape of the refractory closure bodies also in the case of deep installation. It can be adjusted with little effort, namely by adjusting the pipe length, the installation depth to the respective circumstances, such as. B. changing thickness of the vessel lining, etc. The mechanically more sensitive parts of the closure, such as spring elements and bearings, can be accommodated outside the vessel jacket in the region of relatively low temperatures.

Im Hinblick auf die Anwendung mit verschiedenen (und unterschiedlich heissen) Schmelzen ist der Begriff "feuerfest" im Rahmen der vorliegenden Erfindung allgemein natürlich so zu verstehen, dass die betreffenden, mit der Schmelze direkt in Berührung kommenden Teile bzw. Werkstoffe gegenüber dieser ausreichend beständig sein sollen.With regard to the use with different (and different hot) melts, the term “fire-proof” in the context of the present invention is of course generally to be understood in such a way that the relevant parts or materials that come into direct contact with the melt are sufficiently resistant to it should.

Nachstehend wird ein Ausführungsbeispiel des erfindungsgemässen Drehschiebeverschlusses in Verbindung mit der Zeichnung näher erläutert.

  • Fig. 1 ist ein Längsschnitt durch den Verschluss und die angrenzenden Partien des Schmelzegefässes, und
  • Fig. 2 ist eine Stirnansicht auf den Zwischenträger und den darin eingesetzten feuerfesten, plattenförmigen Schieberkörper.
An exemplary embodiment of the rotary slide closure according to the invention is explained in more detail below in conjunction with the drawing.
  • Fig. 1 is a longitudinal section through the closure and the adjacent parts of the melting vessel, and
  • Fig. 2 is an end view of the intermediate carrier and the refractory, plate-shaped slider body used therein.

Der in Fig. 1 dargestellte Drehschiebeverschluss ist an einem metallurgischen Schmelzegefäss zwecks Entleerung der in ihm enthaltenen Schmelze angebaut, indem er insgesamt mittels mehrerer Schrauben 19 lösbar am metallischen Gefässmantel 2 (oder einer im Mantelblech eingesetzten, z.B. eingeschweissten Zwischenplatte) befestigt ist. Vom Schmelzegefäss ist ein Teil der innerhalb des Gefässmantels 2 liegenden feuerfesten Auskleidung 4 dargestellt. In ihr ist zwecks Aufnahme des Verschlusses eine über einer Oeffnung 3 des Gefässmantels angeordnete, feuerfeste Hülse 6 eingelassen, mit welcher ein mit einer weiten Trichteröffnung 9 versehener Ausläufstein 8 über eine ringförmige Mörtelfuge 7 verbunden ist. In bekannter Weise können die Feuerfestteile 6 und 8 jeweils während längerer Gebrauchsdauer eingebaut bleiben und brauchen z.B. nur zusammen mit der Auskleidung 4 erneuert zu werden. Von der Unterseite des Auslaufsteines 8 ist die obere Stirnseite des Verschlusses getrennt durch eine ringförmige Mörtelfuge 1, welche die Oeffnung 9 umgibt sowie eine daran aussen anschliessende Isolierschicht 5, vorzugsweise aus einer feuerfesten Filzmatte; die Teile 1 und 5 sind jeweils beim Wiedereinbau der Verschlusseinheit zu erneuern.The rotary slide closure shown in FIG. 1 is attached to a metallurgical melt vessel for the purpose of emptying the melt contained in it, by being detachably fastened to the metallic vessel jacket 2 (or a welded-in intermediate plate, for example, welded into the jacket plate) by means of several screws 19. From the melting pot part of the refractory lining 4 lying inside the vessel jacket 2 is shown. In order to accommodate the closure, a refractory sleeve 6, which is arranged above an opening 3 of the vessel jacket and to which a discharge stone 8 provided with a wide funnel opening 9 is connected via an annular mortar joint 7, is let into it. In a known manner, the refractory parts 6 and 8 can in each case remain installed for a longer period of use and, for example, only need to be replaced together with the lining 4. The upper end face of the closure is separated from the underside of the outlet stone 8 by an annular mortar joint 1 which surrounds the opening 9 and an insulating layer 5 adjoining it on the outside, preferably made of a fireproof felt mat; Parts 1 and 5 must be replaced when the locking unit is reinstalled.

Der unterhalb der Oeffnung 9 liegende, ortsfeste feuerfeste Ausgusskörper 20 und der drehbare, feuerfeste Schieberkörper 40 sind als ebene, vorzugsweise identische Platten ausgebildet. Die Gleitfläche 23, an welcher die Schieberplatte 40 an der Ausgussplatte 20 unter Vorspannung anliegt, befindet sich auf der dem Gefässinnern zugewandten Seite des Gefässmantels 2, wodurch der Ausgussbereich von der im Gefäss enthaltenen Schmelze auf einer relativ hohen Temperatur gehalten wird; dies wird noch unterstützt durch die weite Oeffnung 9, welche eine grosse Berührungsfläche zwischen der Schmelze und der Platte 20 schafft. In bekannter Weise lässt sich durch Drehen der Schieberplatte 40 eine in ihr vorhandene Oeffnung 42 mit der ortsfesten Oeffnung 22 in Uebereinstimmung bringen oder die letztere Oeffnung verschliessen; die Schieberplatte 40 kann wie üblich auch mehrere Oeffnungen enthalten.The stationary, refractory pouring body 20 lying below the opening 9 and the rotatable, fireproof slide body 40 are designed as flat, preferably identical plates. The sliding surface 23, on which the slide plate 40 rests under prestress on the pouring plate 20, is located on the side of the vessel shell 2 facing the interior of the vessel, as a result of which the pouring area is kept at a relatively high temperature by the melt contained in the vessel; this is further supported by the wide opening 9, which creates a large contact area between the melt and the plate 20. In a known manner, by rotating the slide plate 40, an opening 42 present in it can be brought into agreement with the stationary opening 22 or the latter opening can be closed; the slide plate 40 can, as usual, also contain several openings.

Die ortsfeste Platte 20 und die Schieberplatte 40 sind je am einen Ende eines ortsfesten bzw. drehbaren Verschlussteils gehalten. Dabei sind, wie ersichtlich, der ortsfeste wie auch der drehbare Verschlussteil im wesentlichen als koaxial ineinander liegende Rohrkörper gestaltet; die Halterung der Schieberplatte 40 am drehbaren Rohrkörper 30 erfolgt dabei mittelbar über einen Zwischenträger 34. Der ortsfeste und der drehare Verschlussteil sind über zwei Wälzlager 24, 25 aneinander radial und axial geführt.The stationary plate 20 and the slide plate 40 are each held at one end of a stationary or rotatable closure part. As can be seen, the stationary as well as the rotatable closure part are essentially designed as coaxial tubular bodies; the slide plate 40 is held on the rotatable tubular body 30 indirectly via an intermediate carrier 34. The stationary and the rotatable one Closure part are guided radially and axially to one another via two roller bearings 24, 25.

Der ortsfeste Verschlussteil ist in mehrere rohrförmige Längsabschnitte 10, 11 und 12 unterteilt. An den Verbindungsstellen dieser Teile sind wärmeisolierende Schichten 26 bzw. 27, 28 eingefügt, welche die Wärmeableitung über den feststehenden, metallischen Rohrkörper aus dem Verschlussbereich nach aussen stark einschränken. Der Endabschnitt 10 ist mit dem mittleren Abschnitt 11 mittels mehrerer Schrauben 15 lösbar verbunden und weist eine stirnseitige Bodenfläche 14 auf, in welcher die Platte 20 eingesetzt ist. Die Rohrabschnitte 11 und 12 sind mit je einem Flansch 16 bzw. 17 versehen und an diesen mittels einer Anzahl Schrauben 18 verbunden. Der eine Flansch 16 dient dabei zur Positionierung und Befestigung (Schrauben 19) der gesamten Verschlusseinheit am Gefässmantel 2. An dem ausserhalb des Gefässmantels liegenden Rohrabschnitt 12 ist schliesslich der Rohrkörper 30 des drehbaren Verschlussteils gelagert.The stationary closure part is divided into several tubular longitudinal sections 10, 11 and 12. At the junctures of these parts, heat-insulating layers 26 and 27, 28 are inserted, which greatly restrict the heat dissipation to the outside via the fixed, metallic tubular body from the closure area. The end section 10 is detachably connected to the middle section 11 by means of a plurality of screws 15 and has an end face 14 in which the plate 20 is inserted. The pipe sections 11 and 12 are each provided with a flange 16 and 17 and connected to this by means of a number of screws 18. One flange 16 is used for positioning and fastening (screws 19) the entire closure unit on the vessel shell 2. Finally, the tubular body 30 of the rotatable closure part is mounted on the tube section 12 lying outside the vessel shell.

An der oberen Stirnseite des Rohrkörpers 30 sind mehrere, z.B. drei Mitnehmerbolzen 37 eingesetzt, welche zwecks Drehmitnahme des Zwischenträgers 34 in entsprechende Bohrungen an demselben passend eingreifen (siehe auch Fig. 2). Zur Drehsicherung der Schieberplatte 40 im Zwischenträger 34 dient ein im letzteren geführter Tagentialkeil 35, welcher an einer seitlichen Mitnahmefläche der im übrigen kreisrunden Platte 40 anliegt. In gleicher Weise ist auch die ortsfeste Platte 20 in der Bodenfläche 14 des Endabschnittes 10 mit Hilfe eines Keils 21 drehgesichert. Unterhalb der Schieberplatte 40 ist im Zwischenträger 34 eine Wärmeisolierung 43 eingesetzt, welche die Wärmeabstrahlung von der Schieberplatte nach aussen hemmt. In einem Rohransatz 36 des Zwischenträgers ist ferner ein Ausgussrohr 44 eingesetzt, welches die metallischen Bestandteile des Verschlusses vor der ausfliessenden Schmelze schützt. Die beiden Teile 43 und 44 können einteilig oder getrennt aus leichtem und porösem, z.B. faserigem oder flockigem Feuerfestmaterial hergestellt sein.On the upper face of the tubular body 30 there are several, e.g. three driving bolts 37 are inserted, which engage in corresponding bores on the same for the purpose of driving the intermediate carrier 34 (see also FIG. 2). To prevent the slide plate 40 from rotating in the intermediate carrier 34, a tag wedge 35 guided in the latter is used, which lies against a lateral driving surface of the otherwise circular plate 40. In the same way, the stationary plate 20 is secured against rotation in the bottom surface 14 of the end section 10 by means of a wedge 21. Below the slide plate 40, a thermal insulation 43 is inserted in the intermediate carrier 34, which inhibits the heat radiation from the slide plate to the outside. In a tube extension 36 of the intermediate carrier, a pouring tube 44 is also used, which protects the metallic components of the closure from the outflowing melt. The two parts 43 and 44 can be made in one piece or separately from light and porous, e.g. fibrous or flaky refractory material.

Der Zwischenträger 34 liegt an den oberen Enden von drei Druckstösseln 38 auf, welche, zu den Mitnehmerbolzen 37 versetzt, im Rohrkörper 30 längsbeweglich geführt sind. Gegen das untere bzw. aussenliegende Ende der Stössel 38 drückt ein Ring 46, welcher von z.B. drei am Umfang verteilten Federorganen 48 beaufschlagt ist. Es handelt sich vorzugsweise um Tellerfedern 48, die paketweise auf einen Stehbolzen 47 geschichtet und mit einer Mutter 49 vorgespannt sind. Mittels dieser Federorgane, welche wie der Ring 46 auf dem drehbaren Verschlussteil angeordnet sind, lässt sich über die Stössel 38 und den Zwischenträger 34 die gewünschte Flächenpressung zwischen den Verschlussplatten 20 und 40 einstellen. Da der Zwischenträger 34 mit der Platte 40 in der Lage ist, relativ zum Rohrkörper 30 eine gewisse Taumelbewegung auszuführen, bleibt die satte Auflage der Platte 40 an der Platte 20 (Gleitfläche 23) während der Drehung auch dann erhalten, wenn der drehbare Rohrkörper nicht genau koaxial zum ortsfesten Rohrkörper ausgerichtet sein sollte.The intermediate carrier 34 rests on the upper ends of three pressure rams 38 which, offset from the driving bolts 37, are guided in the tubular body 30 so as to be longitudinally movable. A ring 46 presses against the lower or outer end of the plunger 38, which ring is e.g. three spring members 48 distributed around the circumference is acted upon. These are preferably disc springs 48 which are stacked in packages on a stud bolt 47 and are preloaded with a nut 49. By means of these spring elements, which, like the ring 46, are arranged on the rotatable closure part, the desired surface pressure between the closure plates 20 and 40 can be set via the plunger 38 and the intermediate carrier 34. Since the intermediate support 34 with the plate 40 is able to perform a certain wobble movement relative to the tubular body 30, the full support of the plate 40 on the plate 20 (sliding surface 23) is maintained during the rotation even if the rotatable tubular body is not precise should be aligned coaxially to the stationary tubular body.

Am aussenliegenden Ende des drehbaren Rohrkörpers 30 ist mittels mehrerer Schrauben 33 ein Drehkranz 31 befestigt, welcher mit der Verzahnung 32 dem Drehantrieb (mittels Kette oder Stirnrad) des drehbaren Verschlussteils dient. Vorzugsweise ist der Drehkranz 31 glockenartig gestaltet und übergreift das aussenliegende Ende des ortsfesten Verschlussteils, wodurch die Verzahnung 32 axial zwischen die Lager 24 und 25 zu liegen kommt.At the outer end of the rotatable tubular body 30, a turntable 31 is fastened by means of several screws 33, which with the toothing 32 serves the rotary drive (by means of a chain or spur gear) of the rotatable closure part. The slewing ring 31 is preferably bell-shaped and engages over the outer end of the stationary closure part, as a result of which the toothing 32 comes to lie axially between the bearings 24 and 25.

Der beschriebene Drehschiebeverschluss lässt sich durch Lösen der Schrauben 19 als Ganzes aus der durch die Feuerfestteile 6 und 8 gebildeten Vertiefung ausbauen. Dadurch werden die Schrauben 15 zugänglich, und der Endabschnitt 10 des ortsfesten Verschlussteils lässt sich zwecks Kontrolle oder Auswechslung der Platten 20 und 40 lösen. Nach erneutem Befestigen des Endabschnittes 10 und allfälliger Neueinstellung der Federorgane 48 kann die Verschlusseinheit als Ganzes wieder eingebaut werden. Es besteht auch die Möglichkeit, die Schrauben 19 zu belassen und dagegen die die Flanschen 16 und 17 verbindenden Schrauben 18 zu lösen, worauf der Rohrabschnitt 12 mit dem daran gelagerten drehbaren Verschlussteil ausgebaut werden kann, die ortsfesten Rohrabschnitte 10 ' und 11 sowie die Platte 20 jedoch eingebaut bleiben.The rotary slide closure described can be removed as a whole by loosening the screws 19 from the depression formed by the refractory parts 6 and 8. As a result, the screws 15 are accessible and the end section 10 of the fixed closure part can be loosened for the purpose of checking or replacing the plates 20 and 40. After the end section 10 has been reattached and any resetting of the spring members 48, the closure unit as a whole can be reinstalled. There is also the possibility of leaving the screws 19 and, on the other hand, loosening the screws 18 connecting the flanges 16 and 17, whereupon the pipe section 12 with the rotatable Ver mounted thereon final part can be removed, but the stationary pipe sections 10 'and 11 and the plate 20 remain installed.

Die beschriebene Verschlusskonstruktion ermöglicht eine besonders einfache Wartung und insbesondere einen raschen Wechsel der feuerfesten Verschlusskörper 20 und 40. Auch lässt sich die Konstruktion sehr einfach der jeweils erforderlichen Einbautiefe bzw. Lage der Gleitfläche 23 bezüglich des Gefässmantels anpassen, nämlich lediglich durch Längeänderung des Rohrabschnittes 11 und des drehbaren Rohrkörpers 30; dies kann gegebenenfalls durch Einsetzen von verschieden langen Zwischenringen an diesen Teilen erreicht werden.The described closure construction enables particularly simple maintenance and, in particular, rapid replacement of the refractory closure bodies 20 and 40. The construction can also be very easily adapted to the required installation depth or position of the sliding surface 23 with respect to the vessel shell, namely only by changing the length of the tube section 11 and the rotatable tubular body 30; if necessary, this can be achieved by inserting intermediate rings of different lengths on these parts.

Der erfindungsgemässe Drehschiebeverschluss kann zum Vergiessen verschiedener Schmelzen, insbesondere auch von Nichteisen-Schwermetallen oder Leichtmetallen aus den jeweiligen Schmelzegefässen verwendet werden. Der Betrieb ist nicht nur in der dargestellten vertikalen Lage, sondern auch mit horizontaler oder schiefer Drehachse möglich.The rotary slide closure according to the invention can be used for casting various melts, in particular also non-ferrous heavy metals or light metals from the respective melting vessels. Operation is not only possible in the vertical position shown, but also with a horizontal or inclined axis of rotation.

Claims (8)

1. Drehschiebeverschluss für metallurgische Schmelzegefässe, mit einem ortsfesten, einen feuerfesten Ausgusskörper aufnehmenden Verschlussteil und einem gegenüber diesem drehbaren Verschlussteil, welcher einen am Ausgusskörper unter Vorspannung anliegenden feuerfesten Schieberkörper aufnimmt, wobei die Gleitfläche zwischen den beiden feuerfesten Körpern auf die dem Gefässinnern zugewandte Seite des metallischen Gefässmantels zu liegen kommt, dadurch gekennzeichnet, dass der ortsfeste und der drehbare Verschlussteil je als koaxial ineinander liegende Rohrkörper (10,11,12;30) gestaltet sind, die radial und axial aneinander geführt sind und an ihrem einen Ende je einen der genannten, als ebene Platte ausgebildeten feuerfesten Körper (20,40) fassen, wobei der Schieberkörper (40) in einem Zwischenträger (34) gehalten ist, der gegenüber dem drehbaren Rohrkörper (30) in axialer Richtung vorgespannt, jedoch mit diesem drehverbunden ist.1.Turning slide closure for metallurgical melting vessels, with a stationary closure part receiving a refractory pouring body and a closure part which is rotatable relative to the latter and which receives a refractory sliding body resting on the pouring body under prestress, the sliding surface between the two refractory bodies facing the inside of the vessel Vessel sheath comes to rest, characterized in that the stationary and the rotatable closure part are each designed as coaxial tubular bodies (10, 11, 12; 30) which are guided radially and axially against one another and have one of the named ends at one end. refractory body (20, 40) designed as a flat plate, the slide body (40) being held in an intermediate carrier (34) which is biased in the axial direction with respect to the rotatable tubular body (30), but is rotationally connected to the latter. 2. Drehschiebeverschluss nach Anspruch 1, dadurch gekennzeichnet, dass der ortsfeste Rohrkörper in mehrere Längsabschnitte (10,11,12) unterteilt ist, die unter Zwischenlage von wärmeisolierenden Schichten (26,27, 28) miteinander verbunden sind.2. Rotary slide closure according to claim 1, characterized in that the stationary tubular body is divided into a plurality of longitudinal sections (10, 11, 12) which are connected to one another with the interposition of heat-insulating layers (26, 27, 28). 3. Drehschiebeverschluss nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der ortsfeste Rohrkörper einen lösbar befestigten Endabschnitt (10) mit einer stirnseitigen Bodenfläche (14) aufweist, in welcher die den feuerfesten Ausgussteil bildende Platte (20) eingesetzt ist.3. Rotary slide closure according to claim 1 or 2, characterized in that the stationary tubular body has a detachably fastened end section (10) with an end face surface (14) in which the plate (20) forming the refractory pouring part is inserted. 4. Drehschiebeverschluss nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der ortsfeste Rohrkörper zwei über Flanschen (16,17) lösbar verbundene Rohrabschnitte (11,12) aufweist, wobei der eine y Flansch (16) zur Positionierung und Befestigung des Verschlusses am Gefässmantel (2) ausgebildet ist und wobei der eine, ausserhalb des Gefässmantels (2) liegende Rohrabschnitt (12) den Rohrkörper (30) des drehbaren Verschlussteils lagert.4. Rotary slide closure according to one of the preceding claims, characterized characterized in that the stationary tubular body has two pipe sections (11, 12) detachably connected via flanges (16, 17), one of the y flanges (16) being designed for positioning and fastening the closure on the vessel jacket (2), and the one, outside the vessel shell (2) pipe section (12) supports the tubular body (30) of the rotatable closure part. 5. Drehschiebeverschluss nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der Rohrkörper (30) des drehbaren Verschlussteils für den Drehantrieb an seinem aussenliegenden Ende mit einem Drehkranz (31) versehen ist.5. Rotary slide closure according to one of the preceding claims, characterized in that the tubular body (30) of the rotatable closure part for the rotary drive is provided at its outer end with a turntable (31). 6. Drehschiebeverschluss nach Anspruch 5, dadurch gekennzeichnet, dass der Drehkranz (31) das aussenliegende Ende des ortsfesten Rohrkörpers glockenartig übergreift.6. Rotary slide closure according to claim 5, characterized in that the rotating collar (31) engages over the outer end of the fixed tubular body in a bell-like manner. 7. Drehschiebeverschluss nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der Zwischenträger (34) als Halterung für eine Wärmeisolierung (43) an der Aussenseite des plattenförmigen Schieberkörpers (40) und ein Ausgussrohr (44) für die Schmelze ausgebildet ist.7. Rotary slide closure according to one of the preceding claims, characterized in that the intermediate carrier (34) is designed as a holder for thermal insulation (43) on the outside of the plate-shaped slide body (40) and a pouring tube (44) for the melt. 8. Drehschiebeverschluss nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der Zwischenträger (34) auf Druckstösseln (38) aufliegt, welche im Rohrkörper (30) des drehbaren Verschlussteils in Längsrichtung geführt und am aussenliegenden Ende von auf dem drehbaren Verschlussteil angeordneten Federorganen (48) beaufschlagt sind.8. Rotary slide closure according to one of the preceding claims, characterized in that the intermediate carrier (34) rests on pressure plungers (38) which are guided in the longitudinal direction in the tubular body (30) of the rotatable closure part and at the outer end of spring members (48) arranged on the rotatable closure part ) are applied.
EP81102759A 1980-05-22 1981-04-10 Rotary valve closure for metallurgical vessels Expired EP0040692B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81102759T ATE4785T1 (en) 1980-05-22 1981-04-10 ROTARY SLIDE CAP FOR METALLURGICAL MELTING VESSELS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4011/80A CH649149A5 (en) 1980-05-22 1980-05-22 TURNTABLE SLIDER FOR MELTING CASES.
CH4011/80 1980-05-22

Publications (2)

Publication Number Publication Date
EP0040692A1 true EP0040692A1 (en) 1981-12-02
EP0040692B1 EP0040692B1 (en) 1983-09-28

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EP81102759A Expired EP0040692B1 (en) 1980-05-22 1981-04-10 Rotary valve closure for metallurgical vessels

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US (1) US4385715A (en)
EP (1) EP0040692B1 (en)
JP (1) JPS5722866A (en)
AT (1) ATE4785T1 (en)
AU (1) AU536045B2 (en)
BR (1) BR8103172A (en)
CA (1) CA1165116A (en)
CH (1) CH649149A5 (en)
DD (1) DD158937A5 (en)
DE (1) DE3161009D1 (en)
ES (1) ES267618Y (en)
IN (1) IN154596B (en)
NO (1) NO155606C (en)
PL (1) PL134789B1 (en)
SU (1) SU1071214A3 (en)
YU (1) YU129881A (en)
ZA (1) ZA812691B (en)

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FR2551523A1 (en) * 1983-09-02 1985-03-08 Stopinc Ag SHUTTER PLATE FOR SLIDING SHUTTER
DE3424254C1 (en) * 1984-05-23 1985-07-11 Stopinc Ag, Baar Rotary slide lock
FR2562824A1 (en) * 1984-04-13 1985-10-18 Stopinc Ag SLIDING SHUTTER FOR THE CASTING BUTTON OF CONTAINERS CONTAINING A MOLTEN METAL BATH
DE3515494A1 (en) * 1985-04-30 1986-11-06 Stopinc Ag, Baar AGAINST MELT-LIQUID MEDIA, IN PARTICULAR METAL MELTING, SEALING PIPE CONNECTION
GB2198979A (en) * 1986-12-20 1988-06-29 Didier Werke Ag Rotary sliding gate valves for metallurgical vessels
BE1001778A3 (en) * 1988-06-09 1990-03-06 Internat Ind Engineering S A Device for closing a rotary key
GB2226263A (en) * 1988-12-22 1990-06-27 Steel Castings Res Rotary outlet valve in metallurgical vessel
EP0437726A3 (en) * 1990-01-17 1992-04-22 Didier-Werke Ag Closure device for a molten metal vessel

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DE3412077A1 (en) * 1984-03-31 1985-10-03 Fried. Krupp Gmbh, 4300 Essen TILTABLE METALLURGICAL OVEN CASE
CA1279189C (en) * 1985-11-18 1991-01-22 Tetsuya Yoshihara Rotary nozzle system
JPS63226888A (en) * 1987-03-16 1988-09-21 Sanyo Electric Co Ltd Alkaline zinc storage battery
JPH01105457A (en) * 1987-10-16 1989-04-21 Sanyo Electric Co Ltd Alkaline zinc storage battery
DE4231692C1 (en) * 1992-09-22 1994-03-24 Dolomitwerke Gmbh Twist lock for metallurgical vessels
GB0613337D0 (en) * 2006-07-05 2006-08-16 Mills Stephen D Rotating control nozzle (metercast)
EP1894649A1 (en) * 2006-09-01 2008-03-05 Stopinc Aktiengesellschaft Device for maintenance of a sliding gate mounted at the outlet of a metallutgical vessel
CH708284B1 (en) 2013-07-11 2023-11-15 Refractory Intellectual Property Gmbh & Co Kg Method and changing device for automatically changing a pouring sleeve of a sliding closure on a metallurgical vessel.

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US3764047A (en) * 1971-11-12 1973-10-09 Nippon Kokan Kk Rotary nozzle for ladle
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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2551523A1 (en) * 1983-09-02 1985-03-08 Stopinc Ag SHUTTER PLATE FOR SLIDING SHUTTER
DE3421368A1 (en) * 1983-09-02 1985-03-28 Stopinc Ag, Baar LOCKING PLATE FOR A SLIDING LOCK
FR2562824A1 (en) * 1984-04-13 1985-10-18 Stopinc Ag SLIDING SHUTTER FOR THE CASTING BUTTON OF CONTAINERS CONTAINING A MOLTEN METAL BATH
DE3424254C1 (en) * 1984-05-23 1985-07-11 Stopinc Ag, Baar Rotary slide lock
GB2159250A (en) * 1984-05-23 1985-11-27 Stopinc Ag Rotary sliding gate valves
FR2564958A1 (en) * 1984-05-23 1985-11-29 Stopinc Ag ROTATING SLIDER CLOSURE FOR METALLURGICAL TANKS OR CONTAINERS
DE3515494A1 (en) * 1985-04-30 1986-11-06 Stopinc Ag, Baar AGAINST MELT-LIQUID MEDIA, IN PARTICULAR METAL MELTING, SEALING PIPE CONNECTION
FR2587439A1 (en) * 1985-04-30 1987-03-20 Stopinc Ag JOINT BETWEEN TWO TUBES, WATERPROOF FOR LIQUID MEDIA, ESPECIALLY FOR FUSED METALS
GB2198979A (en) * 1986-12-20 1988-06-29 Didier Werke Ag Rotary sliding gate valves for metallurgical vessels
BE1001778A3 (en) * 1988-06-09 1990-03-06 Internat Ind Engineering S A Device for closing a rotary key
GB2226263A (en) * 1988-12-22 1990-06-27 Steel Castings Res Rotary outlet valve in metallurgical vessel
GB2226263B (en) * 1988-12-22 1992-11-04 Steel Castings Res Valve for vessel outlet
EP0437726A3 (en) * 1990-01-17 1992-04-22 Didier-Werke Ag Closure device for a molten metal vessel

Also Published As

Publication number Publication date
NO811733L (en) 1981-11-23
EP0040692B1 (en) 1983-09-28
YU129881A (en) 1984-08-31
CA1165116A (en) 1984-04-10
ZA812691B (en) 1982-04-28
BR8103172A (en) 1982-02-09
IN154596B (en) 1984-11-17
SU1071214A3 (en) 1984-01-30
JPS6225465B2 (en) 1987-06-03
NO155606C (en) 1987-04-29
ATE4785T1 (en) 1983-10-15
ES267618Y (en) 1983-12-01
DE3161009D1 (en) 1983-11-03
US4385715A (en) 1983-05-31
NO155606B (en) 1987-01-19
DD158937A5 (en) 1983-02-09
AU536045B2 (en) 1984-04-12
AU7091281A (en) 1981-11-26
ES267618U (en) 1983-06-01
PL231273A1 (en) 1982-01-04
JPS5722866A (en) 1982-02-05
PL134789B1 (en) 1985-09-30
CH649149A5 (en) 1985-04-30

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