EP0325646B1 - Closure element for a sliding closure on a vessel containing molten metal and sliding closure with such a closure element - Google Patents

Closure element for a sliding closure on a vessel containing molten metal and sliding closure with such a closure element Download PDF

Info

Publication number
EP0325646B1
EP0325646B1 EP88907280A EP88907280A EP0325646B1 EP 0325646 B1 EP0325646 B1 EP 0325646B1 EP 88907280 A EP88907280 A EP 88907280A EP 88907280 A EP88907280 A EP 88907280A EP 0325646 B1 EP0325646 B1 EP 0325646B1
Authority
EP
European Patent Office
Prior art keywords
valve body
closure body
closure
openings
support frame
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
Application number
EP88907280A
Other languages
German (de)
French (fr)
Other versions
EP0325646A1 (en
Inventor
José GIMPERA
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.)
Didier Werke AG
Original Assignee
Didier Werke 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 Didier Werke AG filed Critical Didier Werke AG
Priority to AT88907280T priority Critical patent/ATE67107T1/en
Publication of EP0325646A1 publication Critical patent/EP0325646A1/en
Application granted granted Critical
Publication of EP0325646B1 publication Critical patent/EP0325646B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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

Definitions

  • the invention relates to a closure body for a sliding closure on a vessel containing molten metal, which has at least one flow channel and can be used interchangeably in a fixed or adjustable support frame.
  • Closure bodies of so-called linear slides are usually plate-shaped and each have a flow channel, with the flow channel in the open position of the slide plate being aligned with the flow channel of a base plate fixedly arranged on the bottom of the vessel (DE-OS 2102059). Since when moving the slide plate in a control and / or closed position, the upper inlet edge of the flow channel wears out relatively quickly due to the thermal, erosive and corrosive action of the molten metal jet and therefore the entire slide plate must be replaced after only a few spouts, it has already been proposed that Slide plate closed on two sides use, i.e.
  • closure body is penetrated by at least two separate flow channels for the molten metal, the openings of which lie in different, flat surfaces of the closure body.
  • the flow channels do not run parallel, as in the prior art, and therefore do not open into the same surfaces of the closure body, but they are at an angle to each other and their openings on two opposite surfaces of the closure body, at least one of which forms a working surface of the closure body .
  • the closure body according to the invention can perform both the functions of a conventional slide plate and those of a conventional base plate, it is primarily intended to be used in the slide of a slide closure, since, as already mentioned, the wear of slide plates is significantly greater than that of base plates, so that the advantages according to the invention are stronger when the closure body is used in the slide than with a fixed arrangement in the base region of the vessel containing the molten metal.
  • the closure body After wear of the at least one work surface and the associated flow channel in its edge area, the closure body, in particular when used in the slide of a sliding lock, can be rotated or turned so that a new flow channel with its own undamaged work surface is used.
  • the flow channel opens with its openings on both sides into a working surface of the closure body, so that each flow channel can be used in two directions. It is also possible to give the flow channels different dimensions, so that, depending on the desired casting conditions, a narrower or wider flow channel can be selected, which is also assigned its own work surface.
  • a closure body according to the invention can thus have at least twice as many flow channels with their own work surface or work surfaces as a conventional closure plate with essentially the same length and width dimensions. Accordingly, the service life of such a closure body can be multiplied without significantly increasing its dimensions.
  • the two openings of a flow channel are preferably located in mutually parallel surfaces, in particular work surfaces, so that one slide channel arrangement can be replaced by another by simply changing the position of the slide body without changing the design of the slide valve.
  • the closure body has a prismatic, for example cuboid, or cylindrical shape. If the closure body is cuboid, it can have, for example, three flow channels, if it is hexagonal in cross section, it can have, for example, four flow channels, each of which opens into its own working or surface.
  • a flow channel is rotationally and / or mirror-symmetrical to another flow channel.
  • the flow channels are then arranged symmetrically in the closure body in such a way that one flow channel comes to lie in its support frame in place of the other flow channel simply by turning and / or rotating the closure body. This ensures that no other changes to the slide closure mechanism with regard to the position and / or the arrangement and / or the slide drive have to be made, since each time a new flow channel with its own undamaged work surface exactly in place of the previously used worn flow channel with its worn work surface serves.
  • the invention also proposes that the surfaces receiving the openings of the flow channels be rectangular, possibly rounded or beveled at their ends, and that the end faces be square, hexagonal or round in shape.
  • the (elongated) essentially rectangular design of a work surface has the purpose of providing a closing surface area of the required length by eccentrically arranging the flow channel to be provided without the need for an excessive plate size.
  • the square, hexagonal or round shape of the end faces, into which no flow channel opens, on the other hand ensure that the closure body is as compact as possible.
  • the surfaces receiving the openings of the flow channels have the same size and shape. In this way it can be achieved that no change in the support frame when turning and / or rotating the closure body is required if a new flow channel is to be brought into the functional position.
  • the axes of the flow channels are preferably perpendicular to one another, as are the associated working or surfaces of the two or three flow channels. If the closure body has a hexagonal cross section, the flow channels are preferably at an angle of 60 ° to one another in order to distribute the stress on the closure body as evenly as possible.
  • a favorable utilization of the geometric conditions of the closure body can be achieved if the respective flow channel is located in the closing surface area assigned to the other flow channel.
  • the closure body consists, for example, of monolithic ceramic material, it can also be ruled out that the functionality of the other flow channel is impaired by the formation of cracks in the vicinity of the flow channel already used.
  • the flow channels cross each other and the unused channel sections are closed with blind plugs, for example made of high-quality refractory material such as oxide.
  • blind plugs for example made of high-quality refractory material such as oxide.
  • metal reinforcements can be connected to it with rotating and / or pivoting bearing elements, e.g. also be embedded in it.
  • the primary consideration is to design the closure body as a monolithic block made of ceramic material.
  • closure body is designed as a metal cage with plate and / or sleeve-shaped attachments or inserts.
  • the cage then has corresponding recesses for the optional use of such plate and / or sleeve-shaped attachments or inserts, which can take over the functions of a slide plate.
  • closure body can also be accommodated in a metal frame from the outset, so that the closure body is replaced together with this frame.
  • the closure body according to the invention can thus be pressed and fired in a conventional manner from a ceramic refractory material, but can also be cast and / or pressed from refractory refractory concrete. Since the flow channels should all be of essentially the same length, the closure body, if it is, for example, cuboid, is as wide as it is high. The length of the flow channels in a closure body can therefore expediently be so large that an interchangeable spout, as is required on the underside of conventional slide plates, is unnecessary. In such a case, the closure body according to the invention is, for example, approximately twice as thick or high as a conventional slide plate.
  • Closure bodies according to the invention can be used both with linear and with rotary or pivoting slides.
  • the closure body can also be partially permeable in order to allow gas flushing through the plate body to prevent freezing or build-up and to seal against the outside atmosphere.
  • the invention further relates to a sliding closure for a vessel containing molten metal with a closure body, as has been explained in more detail above.
  • This is characterized in particular by the fact that the closure body is both longitudinally displaceable and rotatably mounted. In this way, the various flow channels can be easily brought into their respective working positions.
  • the sliding closure can be opened and closed in an advantageous manner, for example by pushing it back and forth, and the pouring jet can be regulated by pushing it back and forth in the other direction.
  • the service life of the respective closure body is increased still further because different wear edges of the flow channels are then exposed to the molten metal jet during the regulating and / or closing process.
  • the closure body can advantageously have front and / or longitudinal cutouts for the engagement of pins of the support frame or the Have closure body end and / or longitudinal pin for engagement in recesses of the support frame so as to simplify the rotational mounting of the closure body. It may be necessary to adjust the actuation stroke for the slide after the rotation of the closure body to the new conditions.
  • the closure body can also be pressed against the working surface of a base plate with at least one working surface by means of support springs.
  • the base plate can also be held in a swiveling frame.
  • the closure body 1 of Figure 1 is a refractory ceramic monolithic block, which is to take over the functions of a conventional closure plate, in particular a slide plate, in a slide closure on a vessel containing molten metal.
  • the parallelepiped-shaped closure body 1 has two mutually opposite parallel surfaces 9 and 10, which can both be working surfaces of the closure body 1, and two mutually perpendicular, also mutually parallel surfaces 11 and 12, which can also be working surfaces of the closure body 1.
  • the surfaces 9 to 12 all have the same size and shape.
  • the closure body 1 thus has the same height h as width b.
  • the side surfaces 13 and 14 provided on the ends of the narrow sides of the two pairs of surfaces 9, 10 and 11, 12 are square.
  • the closure body 1 is penetrated by two spaced-apart flow channels 2 and 3.
  • the axes of the flow channels 2, 3 are each perpendicular to the longitudinal axis of the closure body 1, but also perpendicular to each other.
  • the openings 5, 6 and 7, 8 open into the surface 9, 10 and 11, 12.
  • the flow channels 2, 3 are rotationally and mirror-symmetrically in the closure body 1 arranged that, for example, by rotating the closure body 1 about its longitudinal axis by 90 ° and turning the closure body 1 about its vertical central axis by 180 ° in the slide closure, the flow channel 3 takes the place of the flow channel 2.
  • this rotationally or mirror-symmetrically arranged arrangement of the flow channels 2, 3 they can also be seen in the part of the closure body material which is delimited by the closing surface areas assigned to the respective other flow channel 3, 2.
  • such a wear body 1 is inserted in a support frame 4, which in the case shown consists of an inner tenter part and an outer support part.
  • the latter has a recess into which the structural unit of wear body 1 and clamping frame part can be inserted, for example with support against support springs (not shown).
  • the support frame part also has an engagement opening 19 for a slide drive 27.
  • the flow channels 2 and 3 can be lined with sleeve-shaped, wear-resistant ceramic inserts 16.
  • Such a lining is made of relatively high quality material always useful when the remaining part of the closure body 1 is made of a lower quality material, for example a refractory refractory concrete.
  • the closure body 1 of the sliding closure shown in Figures 3 and 4 takes over the functions of a slide plate.
  • the closure body 1 as can be seen from the sectional view in FIG. 4, is not purely cuboid, but bevelled on its longitudinal edges.
  • the closure body 1 has in its front side surfaces 13 and 14 a recess 17, in which pins 18 are received for rotatable mounting in bearing pieces of the support frame 4.
  • the slide drive 27 which engages with an actuating rod 28 in the engagement opening 19 of the support frame 4
  • the unit comprising the support frame 4 and the closure body 1 can be displaced linearly relative to the base plate 24 on rails 29.
  • the stroke for the possibility of displacement is such that both the flow channel 2 and - after rotation of the closure body 1 about its longitudinal axis - the flow channel 3 can be moved into the working position under the flow opening 30 of the base plate 24. This eliminates the need for a second rotation of the closure body 1.
  • the slider 29 is part of a housing 20 which is pivotally mounted about an axis 31 on a floor-mounted holder 32 of the vessel containing molten metal.
  • the closure body 1 After pivoting the housing 20 with the support frame 4 and the closure body 1, the closure body 1 can be removed from the support frame 4. On the other hand, the base plate 24 is then also accessible for easy replacement.
  • a closure body 1 in the embodiment of a closure body 1 according to the invention shown in FIG. 5, it consists of an essentially cylindrical cage 21.
  • the cage 21 has in its jacket a number of cutouts 33, in the illustrated case 4 in number, into which plate-shaped attachments 15 with a flow channel 2 can be used with an opening 5 and a surface 9 serving as a working surface.
  • the cage 21 carries pins 18 for the rotatable reception in bearing parts 25, which in turn are supported on the supporting frame 4 via support springs 22, as can be seen in FIGS. 6 and 7.
  • FIG. 6 also shows how the plate-shaped attachment 15 made of refractory material can be combined with a sleeve-shaped insert 16, which leads to an opening 6 in the recess 33 opposite the plate-shaped attachment 15.
  • the plate-shaped attachment 15 and the sleeve-shaped insert 16 can also be formed in one piece. As can be seen from FIG. 6, a similar combination of perpendicular to each other is created in this way Flow channels 2 and 3 we in the embodiment of Figure 3 with a monolithic ceramic closure body 1.
  • the embodiment according to Figures 6 and 7 has the advantage that the cage 21 can be reused many times and only the plate-shaped attachments 15 and the sleeve-shaped inserts 16 are replaced when worn Need to become.
  • FIG. 7 also shows the tensioning screws 33, with which the housing 20 of the slide, which can be swiveled about the axis 31 from the holder 32, is fastened to the end of the vessel containing the molten metal at the end opposite the axis 31 under load of the support springs 22.
  • the possible stroke of the slide formed from the support frame 4 and the closure body 1 is dimensioned such that both the flow channel 2 and the flow channel 3 can be moved into the working position, with the required displacement possibility over the closing surface area of the plate-shaped attachment 15.

Abstract

PCT No. PCT/EP88/00644 Sec. 371 Date Dec. 6, 1988 Sec. 102(e) Date Dec. 6, 1988 PCT Filed Jul. 16, 1988 PCT Pub. No. WO89/01373 PCT Pub. Date Feb. 23, 1989.The invention relates to a closing member, for use in a slide gate for a molten metal container. The closing member can be formed as a ceramic block having flow channels formed therethrough and opening through different external surfaces thereof such that each flow channel has its own working surface and can be brought into operative position by rotating and/or sliding the closing member relative to the molten metal container. Alternatively, the closing member can be formed as a metal cage having recesses formed therethrough in which refractory plates can be inserted. The refractory plates each have an opening therethrough which aligns with a refractory sleeve extending through the cage. Each refractory sleeve, together with the opening through the corresponding refractory plate, forms a flow channel. Again, the different flow channels are arranged so that they can be brought into operative position by rotating and/or sliding the closing member relative to the molten metal container.

Description

Die Erfindung bezieht sich auf einen Verschlußkörper für einen Schiebeverschluß an einem Metallschmelze enthaltenden Gefäß, welcher wenigstens einen Durchflußkanal aufweist und in einen ortsfesten oder verstellbaren Tragrahmen auswechselbar einzusetzen ist.The invention relates to a closure body for a sliding closure on a vessel containing molten metal, which has at least one flow channel and can be used interchangeably in a fixed or adjustable support frame.

Verschlußkörper von sogenannten Linearschiebern sind üblicherweise plattenförmig und haben je einen Durchflußkanal, wobei in Öffnungsstellung der Schieberplatte deren Durchflußkanal mit dem Durchflußkanal einer am Gefäßboden fest angeordneten Bodenplatte fluchtet (DE-OS 2102059). Da beim Verschieben der Schieberplatte in eine Regel- und/oder Verschlußstellung die obere Einlaufkante des Durchflußkanals durch die thermische, erosive und korrosive Einwirkung des Metallschmelzestrahls verhältnismäßig schnell verschleißt und daher die gesamte Schieberplatte schon nach wenigen Ausgüssen ausgewechselt werden muß, ist bereits vorgeschlagen worden, die Schieberplatte zweiseitig zu verwenden, d.h. die zunächst nach oben gekehrte und abgenutzte Arbeitsfläche der Schieberplatte nach unten zu kehren, so daß zwar der gleiche Durchflußkanal abermals, jedoch mit der noch unbeeinträchtigten, jetzt nach oben gekehrten, Arbeitsfläche benutzt wird (JP(A) 55-33823). Eine solche Verlängerung der Standzeit der Schieberplatte ist jedoch nur bedingt möglich, weil der Durchflußkanal auch unterhalb der zunächst oben liegenden Regel- und Verschlußkante des Durchflußkanals durch die hindurchströmende Schmelze versehrt worden sein kann. Ähnliches gilt auch für die Bodenglatte, die jedoch im Kantenbereich des Durchflußkanals weniger beansprucht wird als eine Schieberglatte, weil letztere die Regel- und Verschlußfunktion ausübt.Closure bodies of so-called linear slides are usually plate-shaped and each have a flow channel, with the flow channel in the open position of the slide plate being aligned with the flow channel of a base plate fixedly arranged on the bottom of the vessel (DE-OS 2102059). Since when moving the slide plate in a control and / or closed position, the upper inlet edge of the flow channel wears out relatively quickly due to the thermal, erosive and corrosive action of the molten metal jet and therefore the entire slide plate must be replaced after only a few spouts, it has already been proposed that Slide plate closed on two sides use, i.e. to sweep the working surface of the slide plate, which was initially turned up and worn down, so that the same flow channel is used again, but with the working surface still undisturbed, now turned up (JP (A) 55-33823). However, such an extension of the service life of the slide plate is only possible to a limited extent because the flow channel may also have been damaged by the melt flowing through below the control and sealing edge of the flow channel, which is initially located at the top. The same applies to the floor smooth, which, however, is less stressed in the edge region of the flow channel than a slide smooth, because the latter performs the control and closure function.

An sogenannten Drehschiebern ist es bekannt, in der Schieberglatte im Umfangsabstand mehr als eine, beispielsweise drei garallele Durchflußkanäle, von zum Teil auch unterschiedlichem Querschnitt, vorzusehen, welche sich jeweils sowohl in die obere Arbeitsfläche als auch in die untere Oberfläche der Drehschieberglatte öffnen (US-PS 3,850,351). Diese Durchflußkanäle können durch Drehen der Schieberglatte nacheinander in Funktionsstellung gebracht werden. Diese Lösung setzt einen verhältnismäßig großen Plattenkörper voraus, da zwischen den einzelnen Durchflußkanälen ein sicherer Schließflächenbereich zur Verfügung bleiben muß.On so-called rotary valves, it is known to provide more than one, for example three, parallel flow channels, some of which also have different cross sections, in the slide smooth at circumferential spacing, each opening into both the upper working surface and the lower surface of the rotary slide smooth (US PS 3,850,351). These flow channels can be brought into the functional position one after the other by turning the slide smooth. This solution requires a relatively large plate body, since a safe closing surface area must remain available between the individual flow channels.

Es sind auch schon sektorförmige Verschlußglatten für Schwenkschieber mit zwei im Schwenkabstand voneinander parallel angeordneten Durchflußkanälen bekannt, die sich ebenfalls beide in die obere Arbeitsfläche und die untere Oberfläche der Schwenkschieberplatte öffnen (DE-OS 2840171). Die Schließflächenbereiche liegen ― bezogen auf eine Schwenkachse ― radial innerhalb der Durchflußkanäle, so daß auch derartige Schieberplatten verhältnismäßig große Abmessungen haben müssen und sowohl ein Schwenkantrieb als auch ein Antrieb zur Linearverschiebung erforderlich ist.There are also known sector-shaped sealing slats for pivoting slides with two flow channels arranged parallel to one another at a pivoting distance, both of which likewise lie in the upper working surface and the lower one Open the surface of the swivel slide plate (DE-OS 2840171). The closing surface areas are - with respect to a swivel axis - radially within the flow channels, so that such slide plates must also have relatively large dimensions and both a swivel drive and a drive for linear displacement are required.

Aufgabe der vorliegenden Erfindung ist es, hiervon ausgehend, einen Verschlußkörper der eingangs genannten Art so auszubilden, daß er bei Erhalt einer zuverlässigen Funktion und verhältnismäßig geringen Abmessungen eine größere Standzeit hat.On the basis of this, it is an object of the present invention to design a closure body of the type mentioned at the outset in such a way that it has a longer service life while maintaining a reliable function and relatively small dimensions.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Verschlußkörper von wenigstens zwei getrennten Durchflußkanälen für die Metallschmelze durchsetzt ist, deren Öffnungen in unterschiedlichen, ebenen Oberflächen des Verschlußkörpers liegen. Die Durchflußkanale verlaufen also nicht parallel, wie beim Stand der Technik, und münden daher auch nicht in gleiche Oberflächen des Verschlußkörpers, sondern sie liegen im Winkel zueinander und ihre Öffnungen auf je zwei gegenüberliegenden Oberflächen des Verschlußkörpers, von denen mindestens eine eine Arbeitsfläche des Verschlußkörpers bildet. Obwohl der erfindungsgemaße Verschlußkörper sowohl die Funktionen einer herkömmlichen Schieberplatte als auch diejenigen einer herkömmlichen Bodenplatte übernehmen kann, ist er in erster Linie dafür bestimmt, im Schieber eines Schiebeverschlusses verwendet zu werden, da, wie zuvor bereits erwähnt, der Verschleiß von Schieberplatten wesentlich größer ist als derjenige von Bodenplatten, so daß sich die erfindungsgemäßen Vorteile beim Einsatz des Verschlußkörpers im Schieber stärker ausbilden, als bei ortsfester Anordnung im Bodenbereich des Metallschmelze enthaltenden Gefäßes.This object is achieved in that the closure body is penetrated by at least two separate flow channels for the molten metal, the openings of which lie in different, flat surfaces of the closure body. The flow channels do not run parallel, as in the prior art, and therefore do not open into the same surfaces of the closure body, but they are at an angle to each other and their openings on two opposite surfaces of the closure body, at least one of which forms a working surface of the closure body . Although the closure body according to the invention can perform both the functions of a conventional slide plate and those of a conventional base plate, it is primarily intended to be used in the slide of a slide closure, since, as already mentioned, the wear of slide plates is significantly greater than that of base plates, so that the advantages according to the invention are stronger when the closure body is used in the slide than with a fixed arrangement in the base region of the vessel containing the molten metal.

Nach Verschleiß der mindestens einen Arbeitsfläche und des dazugehörigen Durchflußkanals in dessen Kantenbereich kann der Verschlußkörper, insbesondere bei seinem Einsatz im Schieber eines Schiebeverschlusses, so gedreht, bzw. gewendet werden, daß ein neuer Durchflußkanal mit seiner eigenen unversehrten Arbeitsfläche zum Einsatz kommt. Insbesondere ist es auch möglich, daß der Durchflußkanal mit seinen Öffnungen beidseitig in eine Arbeitsfläche des Verschlußkörpers mündet, so daß jeder Durchflußkanal in zwei Richtungen verwendet werden kann. Es ist auch möglich, den Durchflußkanälen unterschiedliche Dimensionierung zu geben, so daß je nach den gewünschten Gießverhältnissen ein engerer oder weiterer Durchflußkanal gewählt werden kann, dem ebenfalls eine eigene Arbeitsfläche zugeordnet ist.After wear of the at least one work surface and the associated flow channel in its edge area, the closure body, in particular when used in the slide of a sliding lock, can be rotated or turned so that a new flow channel with its own undamaged work surface is used. In particular, it is also possible that the flow channel opens with its openings on both sides into a working surface of the closure body, so that each flow channel can be used in two directions. It is also possible to give the flow channels different dimensions, so that, depending on the desired casting conditions, a narrower or wider flow channel can be selected, which is also assigned its own work surface.

Ein erfindungsgemäßer Verschlußkörper kann somit bei im wesentlichen gleichen Längen- und Breitenabmessungen mindestens doppelt so viele Durchflußkanäle mit eigener Arbeitsfläche bzw. eigenen Arbeitsflächen wie eine herkömmliche Verschlußplatte aufweisen. Dementsprechend kann die Standzeit eines derartigen Verschlußkörpers ohne wesentliche Vergrößerung seiner Abmessungen vervielfacht werden.A closure body according to the invention can thus have at least twice as many flow channels with their own work surface or work surfaces as a conventional closure plate with essentially the same length and width dimensions. Accordingly, the service life of such a closure body can be multiplied without significantly increasing its dimensions.

Die beiden Öffnungen eines Durchflußkanals liegen vorzugsweise in zueinander parallelen Oberflächen, insbesondere Arbeitsflächen, so daß ohne konstruktive Veränderung Schiebeverschlußanordnung durch einfache Lageveränderung des Verschlußkörpers der eine Durchflußkanal an die Stelle des anderen gebracht werden kann.The two openings of a flow channel are preferably located in mutually parallel surfaces, in particular work surfaces, so that one slide channel arrangement can be replaced by another by simply changing the position of the slide body without changing the design of the slide valve.

In besonderer Ausbildung des Erfindungsgedankens hat der Verschlußkörper prismatische, beispielsweise quaderförmige, oder zylindrische Gestalt. Ist der Verschlußkörper quaderförmig, kann er beispielsweise drei Durchflußkanäle, ist er im Querschnitt sechseckig, kann er beispielsweise vier Durchflußkanäle aufweisen, die jeweils in eigene Arbeits- bzw. Oberflächen münden.In a special embodiment of the inventive concept, the closure body has a prismatic, for example cuboid, or cylindrical shape. If the closure body is cuboid, it can have, for example, three flow channels, if it is hexagonal in cross section, it can have, for example, four flow channels, each of which opens into its own working or surface.

Ein weiteres Erfindungsmerkmal besteht darin, daß ein Durchflußkanal dreh- und/oder spiegelsymmetrisch zu einem anderen Durchflußkanal liegt. Die Durchflußkanäle sind dann also in solcher Weise symmetrisch in dem Verschlußkörper angeordnet, daß der eine Durchflußkanal durch bloßes Wenden und/oder Drehen des Verschlußkörpers in seinem Tragrahmen an die Stelle des anderen Durchflußkanals zu liegen kommt. Hierdurch ist gewährleistet, daß sonst keine Veränderungen am Schiebeverschlußmechanismus hinsichtlich der Lage und/oder der Anordnung und/oder des Schieberantriebes vorgenommen werden müssen, da jeweils ein neuer Durchflußkanal mit seiner eigenen unversehrten Arbeitsfläche genau an die Stelle des vorher benutzten verschlissenen Durchflußkanals mit seiner abgenutzten Arbeitsfläche dient.Another feature of the invention is that a flow channel is rotationally and / or mirror-symmetrical to another flow channel. The flow channels are then arranged symmetrically in the closure body in such a way that one flow channel comes to lie in its support frame in place of the other flow channel simply by turning and / or rotating the closure body. This ensures that no other changes to the slide closure mechanism with regard to the position and / or the arrangement and / or the slide drive have to be made, since each time a new flow channel with its own undamaged work surface exactly in place of the previously used worn flow channel with its worn work surface serves.

Insbesondere wird mit der Erfindung auch vorgeschlagen, die die Öffnungen der Durchflußkanäle aufnehmenden Oberflächen rechteckig, eventuell an ihren Enden abgerundet oder abgeschrägt und die stirnseitigen Seitenflächen mit quadratischer, hexagonaler oder runder Gestalt auszubilden. Die (längliche) im wesentlichen rechteckige Ausbildung einer Arbeitsfläche hat, wie an sich bekannt, den Zweck, durch außermittige Anordnung des Durchflußkanals einen Schließflächenbereich der erforderlichen Länge vorzusehen, ohne daß eine übermäßige Plattengröße erforderlich ist. Die quadratische, hexagonale oder runde Gestalt der stirnseitigen Seitenflächen, in welche kein Durchflußkanal mündet, sorgen dagegen für eine möglichst kompakte Ausbildung des Verschlußkörpers.In particular, the invention also proposes that the surfaces receiving the openings of the flow channels be rectangular, possibly rounded or beveled at their ends, and that the end faces be square, hexagonal or round in shape. As is known per se, the (elongated) essentially rectangular design of a work surface has the purpose of providing a closing surface area of the required length by eccentrically arranging the flow channel to be provided without the need for an excessive plate size. The square, hexagonal or round shape of the end faces, into which no flow channel opens, on the other hand ensure that the closure body is as compact as possible.

Es ist ferner von besonderem Vorteil, wenn die die Öffnungen der Durchflußkanäle aufnehmenden Oberflächen gleiche Größe und Gestalt haben. Hierdurch kann erreicht werden, daß keine Veränderung des Tragrahmens beim Wenden und/oder Drehen des Verschlußkörpers erforderlich ist, wenn ein neuer Durchflußkanal in Funktionsstellung gebracht werden soll.It is also particularly advantageous if the surfaces receiving the openings of the flow channels have the same size and shape. In this way it can be achieved that no change in the support frame when turning and / or rotating the closure body is required if a new flow channel is to be brought into the functional position.

Bei einem quaderförmigen Verschlußkörper stehen die Achsen der Durchflußkanäle vorzugsweise senkrecht zueinander, ebenso wie die zugeordneten Arbeits- oder Oberflächen der zwei oder drei Durchflußkanäle. Hat der Verschlußkörper hexagonalen Querschnitt, stehen die Durchflußkanäle vorzugsweise in einem Winkel von 60° zueinander, um die Beanspruchung des Verschlußkörpers möglichst gleichmäßig zu verteilen.In the case of a cuboidal closure body, the axes of the flow channels are preferably perpendicular to one another, as are the associated working or surfaces of the two or three flow channels. If the closure body has a hexagonal cross section, the flow channels are preferably at an angle of 60 ° to one another in order to distribute the stress on the closure body as evenly as possible.

Eine günstige Ausnutzung der geometrischen Verhältnisse des Verschlußkörpers kann dann erreicht werden, wenn sich der jeweilige Durchflußkanal in dem dem jeweils anderen Durchflußkanal zugeordneten Schließflächenbereich befindet. Hierdurch kann, wenn der Verschlußkörper beispielsweise monolithisch aus keramischem Material besteht, auch ausgeschlossen werden, daß durch Rißbildung in der näheren Umgebung des bereits benutzten Durchflußkanals die Funktionsfähigkeit des anderen Durchflußkanals beeinträchtigt wird.A favorable utilization of the geometric conditions of the closure body can be achieved if the respective flow channel is located in the closing surface area assigned to the other flow channel. In this way, if the closure body consists, for example, of monolithic ceramic material, it can also be ruled out that the functionality of the other flow channel is impaired by the formation of cracks in the vicinity of the flow channel already used.

Es ist aber auch möglich, daß die Durchflußkanäle einander kreuzen und die nicht genutzten Kanalabschnitte mit Blindstopfen, beispielsweise aus hochwertigem Feuerfestmaterial, wie Oxid, verschlossen sind. Hierdurch wird eine einfachere Handhabung des Verschlußkörpers erreicht, da er für den Einsatz eines neuen Durchflußkanals nicht um zwei Achsen, sondern lediglich um eine Achse des Verschlußkörpers gewendet bzw. gedreht werden muß.But it is also possible that the flow channels cross each other and the unused channel sections are closed with blind plugs, for example made of high-quality refractory material such as oxide. This results in a simpler handling of the closure body, since it does not have to be turned or rotated about an axis of the closure body for the use of a new flow channel, but only about an axis.

Um die Stabilität des Verschlußkörpers und seiner Lagerungsmöglichkeit in einem Tragrahmen zu verbessern, können mit ihm metallene Armierungen mit Dreh- und/oder Schwenklagerungselementen verbunden, z.B. auch in ihm eingebettet sein.In order to improve the stability of the closure body and its storage possibility in a supporting frame, metal reinforcements can be connected to it with rotating and / or pivoting bearing elements, e.g. also be embedded in it.

In erster Linie ist daran zu denken, den Verschlußkörper als monolithischen Block aus keramischem Material auszubilden.The primary consideration is to design the closure body as a monolithic block made of ceramic material.

Wenn dieser im Bereich der Arbeitsflächen und/oder der Durchflußkanäle mit platten- und/oder hülsenförmigen Aufsätzen oder Einsätzen aus keramischem Material ausgestattet ist, brauchen lediglich diese aus verhältnismäßig hochwertigem Feuerfestmaterial zu bestehen, während der restliche Teil des Verschlußkörpers aus einem Material geringerer Qualität bestehen kann, beispielsweise aus einem Feuerbeton, in welchem die Aufsätze und/oder Einsätze eingebettet sind. Es kann dabei auch dafür Sorge getragen werden, daß diese Aufsätze und/oder Einsätze verhältnismäßig leicht austauschbar sind, so daß bei Verschleiß nicht der gesamte Verschlußkörper verworfen werden muß, sondern nur diese Aufsätze und/oder Einsätze gegen neue auszutauschen sind. Hierdurch kann der Einsatz des erfindungsgemäßen Verschlußkörpers noch wirtschaftlicher gestaltet werden.If this is equipped in the area of the work surfaces and / or the flow channels with plate-shaped and / or sleeve-shaped attachments or inserts made of ceramic material, they only need to be made of relatively high-quality refractory material, while the remaining part of the closure body can consist of a material of lower quality , for example from a fire concrete in which the attachments and / or inserts are embedded. It can also be ensured that these attachments and / or inserts are relatively easy to replace, so that the entire closure body does not have to be discarded when worn, but only these attachments and / or inserts have to be exchanged for new ones. As a result, the use of the closure body according to the invention can be made even more economical.

Es ist aber auch möglich, daß der Verschlußkörper als metallener Käfig mit platten- und/oder hülsenförmigen Aufsätzen oder Einsätzen ausgebildet ist. Der Käfig hat dann entsprechende Aussparungen für den wahlweisen Einsatz derartiger platten- und/oder hülsenförmiger Aufsätze oder Einsätze, welche die Funktionen einer Schieberplatte übernehmen können.But it is also possible that the closure body is designed as a metal cage with plate and / or sleeve-shaped attachments or inserts. The cage then has corresponding recesses for the optional use of such plate and / or sleeve-shaped attachments or inserts, which can take over the functions of a slide plate.

Insgesamt kann der Verschlußkörper auch bereits von vornherein in einem metallenen Rahmen aufgenommen sein, so daß das Auswechseln des Verschlußkörpers zusammen mit diesem Rahmen erfolgt.Overall, the closure body can also be accommodated in a metal frame from the outset, so that the closure body is replaced together with this frame.

Der erfindungsgemäße Verschlußkörper kann also in herkömmlicher Weise aus einem keramischen Feuerfestmaterial gepreßt und gebrannt, aber auch aus feuerfestem Feuerbeton gegossen und/oder gepreßt sein. Da die Durchflußkanäle alle im wesentlichen gleich lang sein sollen, ist der Verschlußkörper, wenn er beispielsweise quaderförmig ist, ebenso breit wie hoch. Die Länge der Durchflußkanäle in einem Verschlußkörper kann daher zweckmäßigerweise so groß sein, daß ein Wechselausguß, wie er auf der Unterseite von herkömmlichen Schieberplatten erforderlich ist, entbehrlich wird. Der erfindungsgemäße Verschlußkörper ist in einem solchem Falle beispielsweise etwa doppelt so dick bzw. hoch wie eine herkömmliche Schieberplatte. Dies bringt den Vorteil mit sich, daß die Gefahr einer Beschädigung erfindungsgemäßer Verschlußkörper durch Rißbildung bei Benutzung der einzelnen Durchflußkanäle gegenüber herkömmlichen Schieberplatten erheblich reduziert ist. Es gewährleistet den sicheren Einsatz auch der mehreren senkrecht oder im Winkel zueinander stehenden Durchflußkanäle ohne gegenseitige Beeinträchtigung.The closure body according to the invention can thus be pressed and fired in a conventional manner from a ceramic refractory material, but can also be cast and / or pressed from refractory refractory concrete. Since the flow channels should all be of essentially the same length, the closure body, if it is, for example, cuboid, is as wide as it is high. The length of the flow channels in a closure body can therefore expediently be so large that an interchangeable spout, as is required on the underside of conventional slide plates, is unnecessary. In such a case, the closure body according to the invention is, for example, approximately twice as thick or high as a conventional slide plate. This has the advantage that the risk of damage to the closure body according to the invention due to crack formation when using the individual flow channels is considerably reduced compared to conventional slide plates. It ensures the safe use of several flow channels that are perpendicular or at an angle to one another without interfering with one another.

Erfindungsgemäße Verschlußkörper sind sowohl bei Linear- als auch bei Dreh- oder Schwenkschiebern einsetzbar. Der Verschlußkörper kann auch teilweise permeabel sein, um ein Gasspülen durch den Plattenkörper zur Verhinderung eines Einfrierens bzw. einer Ansatzbildung sowie zur Abdichtung gegen die Außenatmosphäre zu ermöglichen.Closure bodies according to the invention can be used both with linear and with rotary or pivoting slides. The closure body can also be partially permeable in order to allow gas flushing through the plate body to prevent freezing or build-up and to seal against the outside atmosphere.

Die Erfindung bezieht sich ferner auf einen Schiebeverschluß für ein Metallschmelze enthaltendes Gefäß mit einem Verschlußkörper, wie er zuvor näher erläutert worden ist. Dieser zeichnet sich insbesondere dadurch aus, daß der Verschlußkörper sowohl längsverschiebbar als auch drehbar gelagert ist. Auf diese Weise können die verschiedenen Durchflußkanäle leicht in ihre jeweilige Arbeitsposition gebracht werden.The invention further relates to a sliding closure for a vessel containing molten metal with a closure body, as has been explained in more detail above. This is characterized in particular by the fact that the closure body is both longitudinally displaceable and rotatably mounted. In this way, the various flow channels can be easily brought into their respective working positions.

Wenn der Verschlußkörper darüberhinaus sowohl in Längsrichtung als auch in Querrichtung verstellbar ist, kann in vorteilhafter Weise beispielsweise durch Hin- und Herverschieben in einer Richtung das Öffnen und Schließen des Schiebeverschlusses und durch Hin- und Herverschieben in der anderen Richtung das Regeln des Gießstrahles erfolgen. Dadurch wird die Standzeit des jeweiligen Verschlußkörpers noch weiter vergrößert, weil dann beim Regel- und/oder Schließvorgang unterschiedliche Verschleißkanten der Durchflußkanäle dem Metallschmelzestrahl ausgesetzt sind.If the closure body is also adjustable both in the longitudinal direction and in the transverse direction, the sliding closure can be opened and closed in an advantageous manner, for example by pushing it back and forth, and the pouring jet can be regulated by pushing it back and forth in the other direction. As a result, the service life of the respective closure body is increased still further because different wear edges of the flow channels are then exposed to the molten metal jet during the regulating and / or closing process.

Hat der Schiebeverschluß einen metallenen Tragrahmen für die Aufnahme des Verschlußkörpers, so kann der Verschlußkörper vorteilhafterweise stirn- und/oder längsseitige Aussparungen für den Eingriff von Zapfen des Tragrahmens oder der Verschlußkörper stirn- und/oder längsseitige Zapfen für den Eingriff in Aussparungen des Tragrahmens aufweisen, um so die Drehlagerung des Verschlußkörpers zu vereinfachen. Eventuell ist nach der Drehung des Verschlußkörpers der Betätigungshub für den Schieber den neuen Verhältnissen anzupassen.If the sliding closure has a metal support frame for receiving the closure body, the closure body can advantageously have front and / or longitudinal cutouts for the engagement of pins of the support frame or the Have closure body end and / or longitudinal pin for engagement in recesses of the support frame so as to simplify the rotational mounting of the closure body. It may be necessary to adjust the actuation stroke for the slide after the rotation of the closure body to the new conditions.

Um den Verschlußkörper für die gewünschte Drehung schnell und einfach freizugeben, kann er mit seinem Tragrahmen in einem abschwenkbaren Gehäuse aufgenommen sein.In order to release the closure body quickly and easily for the desired rotation, it can be accommodated with its supporting frame in a swiveling housing.

Um die Dichtigkeit des Schiebeverschlusses mit einfachen Mitteln zu gewährleisten, kann ferner der Verschlußkörper mit wenigstens einer Arbeitsfläche mittels Abstützfedern an die Arbeitsfläche einer Bodenplatte angedrückt werden.In order to ensure the tightness of the sliding closure with simple means, the closure body can also be pressed against the working surface of a base plate with at least one working surface by means of support springs.

Dies läßt sich auf konstruktiv besonders einfache Weise dadurch verwirklichen, daß die Zapfen des Verschlußkörpers oder die Zapfen des Käfigs in Lagerteilen aufgenommen sind, welche sich mittels der Abstützfedern auf dem Tragrahmen abstützenThis can be achieved in a structurally particularly simple manner in that the pins of the closure body or the pins of the cage are accommodated in bearing parts which are supported on the supporting frame by means of the support springs

Um ein schnelles Auswechseln zu gewährleisten, kann auch die Bodenplatte in einem abschwenkbaren Rahmen gehalten sein.In order to ensure quick replacement, the base plate can also be held in a swiveling frame.

Es zeigen:Show it:

(Fortsetzung auf Seite 14 der alten Beschreibung:(Continued on page 14 of the old description:

"Figur 1 einen quaderförmigen Verschlußkörper...")

Figur 1
einen quaderförmigen Verschlußkörper nach der Erfindung in Schrägansicht,
Figur 2
einen solchen Verschlußkörper eingesetzt in einem Tragrahmen eines Schiebers,
Figur 3
schematisch in vertikalem Längsschnitt einen die Erfindung aufweisenden Schiebeverschluß,
Figur 4
schematisch einen Schnitt A-B des in Figur 3 dargestellten Schiebeverschlusses,
Figur 5
auseinandergezogen in Schrägansicht eine andere Ausgestaltung eines erfindungsgemäßen Verschlußkörpers,
Figur 6
schematisch im Längsschnitt einen Schiebeverschluß mit einem Verschlußkörper nach Figur 5, und
Figur 7
schematisch einen Schnitt C-D des in Figur 6 dargestellten Schiebeverschlusses.

"Figure 1 is a cuboid closure body ...")
Figure 1
a cuboidal closure body according to the invention in an oblique view,
Figure 2
such a closure body used in a support frame of a slide,
Figure 3
schematically in vertical longitudinal section a sliding closure having the invention,
Figure 4
schematically a section AB of the sliding closure shown in Figure 3,
Figure 5
pulled apart in an oblique view another embodiment of a closure body according to the invention,
Figure 6
schematically in longitudinal section a sliding closure with a closure body according to Figure 5, and
Figure 7
schematically shows a section CD of the sliding closure shown in Figure 6.

Der Verschlußkörper 1 von Figur 1 ist ein feuerfester keramischer monolithischer Block, der die Funktionen einer herkömmlichen Verschlußplatte, insbesondere einer Schieberplatte, in einem Schiebeverschluß an einem Metallschmelze enthaltenden Gefäß übernehmen soll. Der quaderförmige Verschlußkörper 1 hat zwei einander gegenüberliegende parallele Oberflächen 9 und 10, die beide Arbeitsflächen des Verschlußkörpers 1 sein können, sowie zwei senkrecht dazu stehende, ebenfalls zueinander parallele Oberflächen 11 und 12, die ebenfalls Arbeitsflächen des Verschlußkörpers 1 sein können. Die Oberflächen 9 bis 12 haben sämtlich gleich Größe und Gestalt. Der Verschlußkörper 1 hat also gleiche Höhe h wie Breite b. Dadurch sind die an den Stirnenden der Schmalseiten der beiden Paare von Oberfläche 9, 10 und 11, 12 vorgesehenen Seitenflächen 13 und 14 quadratisch. Der Verschlußkörper 1 wird von zwei im Abstand voneinander angeordneten Durchflußkanälen 2 und 3 durchsetzt. Die Achsen der Durchflußkanäle 2, 3 stehen jeweils senkrecht zu der Längsachse des Verschlußkörpers 1, aber auch senkrecht zueinander. Die Öffnungen 5, 6 bzw. 7, 8 münden in die Oberfläche 9, 10 bzw. 11, 12. Damit sind den beiden Durchflußkanälen 2, 3 jeweils eigene Oberflächen 9, 10 bzw. 11, 12 zugeordnet, von denen jeweils mindestens eine als Arbeitsfläche ausgebildet ist. Die Durchflußkanäle 2, 3 sind derart dreh- und spiegelsymmetrisch in dem Verschlußkörper 1 angeordnet, daß beispielsweise durch Drehen des Verschlußkörpers 1 um seine Längsachse um 90° und Wenden des Verschlußkörpers 1 um seine senkrechte Mittelachse um 180° im Schiebeverschluß der Durchflußkanal 3 an die Stelle des Durchflußkanals 2 tritt. Durch diese dreh- bzw. spiegelsymmetrische Anordnung der Durchflußkanäle 2, 3 liegen diese ersichtlich auch jeweils in dem Teil des Verschlußkörpermaterials, welcher von den dem jeweiligen anderen Durchflußkanal 3, 2 zugeordneten Schließflächenbereichen begrenzt ist.The closure body 1 of Figure 1 is a refractory ceramic monolithic block, which is to take over the functions of a conventional closure plate, in particular a slide plate, in a slide closure on a vessel containing molten metal. The parallelepiped-shaped closure body 1 has two mutually opposite parallel surfaces 9 and 10, which can both be working surfaces of the closure body 1, and two mutually perpendicular, also mutually parallel surfaces 11 and 12, which can also be working surfaces of the closure body 1. The surfaces 9 to 12 all have the same size and shape. The closure body 1 thus has the same height h as width b. As a result, the side surfaces 13 and 14 provided on the ends of the narrow sides of the two pairs of surfaces 9, 10 and 11, 12 are square. The closure body 1 is penetrated by two spaced-apart flow channels 2 and 3. The axes of the flow channels 2, 3 are each perpendicular to the longitudinal axis of the closure body 1, but also perpendicular to each other. The openings 5, 6 and 7, 8 open into the surface 9, 10 and 11, 12. This means that the two flow channels 2, 3 are each assigned their own surfaces 9, 10 and 11, 12, each of which has at least one as Work surface is formed. The flow channels 2, 3 are rotationally and mirror-symmetrically in the closure body 1 arranged that, for example, by rotating the closure body 1 about its longitudinal axis by 90 ° and turning the closure body 1 about its vertical central axis by 180 ° in the slide closure, the flow channel 3 takes the place of the flow channel 2. As a result of this rotationally or mirror-symmetrically arranged arrangement of the flow channels 2, 3, they can also be seen in the part of the closure body material which is delimited by the closing surface areas assigned to the respective other flow channel 3, 2.

Gemäß Figur 2 ist ein solcher Verschleißkörper 1 in einem Tragrahmen 4 eingesetzt, welcher im dargestellten Fall aus einem inneren Spannrahmenteil und einem äußeren Tragrahmenteil besteht. Letzterer hat eine Aussparung, in welche die bauliche Einheit von Verschleißkörper 1 und Spannrahmenteil, beispielsweise unter Abstützung gegen nicht dargestellte Abstützfedern, eingesetzt werden kann. Der Tragrahmenteil hat ferner eine Eingriffsöffnung 19 für einen Schieberantrieb 27.According to FIG. 2, such a wear body 1 is inserted in a support frame 4, which in the case shown consists of an inner tenter part and an outer support part. The latter has a recess into which the structural unit of wear body 1 and clamping frame part can be inserted, for example with support against support springs (not shown). The support frame part also has an engagement opening 19 for a slide drive 27.

In Figur 2 ist ferner angedeutet, daß die Durchflußkanäle 2 und 3 mit hülsenförmigen, verschleißfesten keramischen Einsätzen 16 ausgekleidet sein können. Eine solche Auskleidung aus verhältnismäßig hochwertigem Material ist immer dann nützlich, wenn der übrige Teil des Verschlußkörpers 1 aus Material geringerer Qualität, beispielsweise aus einem feuerfesten Feuerbeton, besteht.In Figure 2 it is also indicated that the flow channels 2 and 3 can be lined with sleeve-shaped, wear-resistant ceramic inserts 16. Such a lining is made of relatively high quality material always useful when the remaining part of the closure body 1 is made of a lower quality material, for example a refractory refractory concrete.

Der Verschlußkörper 1 des in den Figuren 3 und 4 dargestellten Schiebeverschlusses übernimmt die Funktionen einer Schieberplatte. Der Verschlußkörper 1 ist, wie man aus der Schnittdarstellung von Figur 4 ersieht, nicht rein quaderförmig, sondern an seinen Längskanten abgeschrägt. Der Verschlußkörper 1 hat in seinen stirnseitigen Seitenflächen 13 und 14 je eine Aussparung 17, in welchen Zapfen 18 zur drehbaren Lagerung in Lagerstücken des Tragrahmens 4 aufgenommen sind. Mittels des Schieberantriebes 27, welcher mit einer Betätigungsstange 28 in die Eingriffsöffnung 19 des Tragrahmens 4 eingreift, ist die Einheit aus Tragrahmen 4 und Verschlußkörper 1 linear gegenüber der Bodenplatte 24 auf Schienen 29 verschiebbar. Der Hub für die Verschiebungsmöglichkeit ist so getroffen, daß sowohl der Durchflußkanal 2 als auch ― nach Drehung des Verschlußkörpers 1 um seine Längsachse ― der Durchflußkanal 3 bis in Arbeitsposition unter die Durchflußöffnung 30 der Bodenplatte 24 verfahren werden kann. Dadurch entfällt die Notwendigkeit einer zweiten Drehung des Verschlußkörpers 1. Die Schieber 29 sind Bestandteil eines Gehäuses 20, welches um eine Achse 31 schwenkbar an einer bodenfesten Halterung 32 des Metallschmelze enthaltenden Gefäßes gelagert ist.The closure body 1 of the sliding closure shown in Figures 3 and 4 takes over the functions of a slide plate. The closure body 1, as can be seen from the sectional view in FIG. 4, is not purely cuboid, but bevelled on its longitudinal edges. The closure body 1 has in its front side surfaces 13 and 14 a recess 17, in which pins 18 are received for rotatable mounting in bearing pieces of the support frame 4. By means of the slide drive 27, which engages with an actuating rod 28 in the engagement opening 19 of the support frame 4, the unit comprising the support frame 4 and the closure body 1 can be displaced linearly relative to the base plate 24 on rails 29. The stroke for the possibility of displacement is such that both the flow channel 2 and - after rotation of the closure body 1 about its longitudinal axis - the flow channel 3 can be moved into the working position under the flow opening 30 of the base plate 24. This eliminates the need for a second rotation of the closure body 1. The slider 29 is part of a housing 20 which is pivotally mounted about an axis 31 on a floor-mounted holder 32 of the vessel containing molten metal.

Nach Abschwenken des Gehäuses 20 mit dem Tragrahmen 4 und dem Verschlußkörper 1 kann der Verschlußkörper 1 aus dem Tragrahmen 4 herausgenommen werden. Andererseits ist dann auch die Bodenplatte 24 für einen einfachen Austausch zugänglich.After pivoting the housing 20 with the support frame 4 and the closure body 1, the closure body 1 can be removed from the support frame 4. On the other hand, the base plate 24 is then also accessible for easy replacement.

Bei der in Figur 5 dargestellten Ausführungsform eines erfindungsgemäßen Verschlußkörpers 1 besteht dieser aus einem im wesentlichem zylindrische Käfig 21. Der Käfig 21 hat in seinem Mantel eine Anzahl von Aussparungen 33, im dargestellten Falle 4 an der Anzahl, in welche plattenförmige Aufsätze 15 mit einem Durchflußkanal 2 mit einer Öffnung 5 und einer als Arbeitsfläche dienenden Oberfläche 9 eingesetzt werden können. An seinen Stirnseiten trägt der Käfig 21 Zapfen 18 für die drehbare Aufnahme in Lagerteilen 25, die sich ihrerseits über Abstützfedern 22, wie aus den Figuren 6 und 7 ersichtlich, auf dem Tragrahmen 4 abstützen. Insbesondere aus Figur 6 ist auch ersichtlich, wie der plattenförmige Aufsatz 15 aus feuerfestem Material mit einem hülsenförmigen Einsatz 16 kombiniert werden kann, welcher zu einer Öffnung 6 in der dem plattenförmigen Aufsatz 15 gegenüberliegenden Aussparung 33 führt. Der plattenförmige Aufsatz 15 und der hülsenförmige Einsatz 16 können auch einstückig ausgebildet sein. Wie aus Figur 6 ersichtlich, entsteht auf diese Weise eine ähnliche Kombination von senkrecht zueinander stehenden Durchflußkanälen 2 und 3 wir bei der Ausgestaltung von Figur 3 mit monolithischem keramischen Verschlußkörper 1. Die Ausführungsform gemäß Figuren 6 und 7 hat jedoch den Vorteil, daß der Käfig 21 vielfach wiederverwendbar ist und nur die plattenförmigen Aufsätze 15 und die hülsenförmigen Einsätze 16 bei Verschleiß ausgetauscht werden müssen. Mit Hilfe der Federn 22 wird die Arbeitsfläche 9 des plattenförmigen Aufsatzes 15 gegen die nach unten gekehrte Arbeitsfläche der Bodenplatte 24 gedrückt, welche in diesem Falle ebenfalls in einem Rahmen 26 nach unten abschwenkbar am Gefäßboden gehalten ist. Der als hohlzylindriche Drehkörper ausgebildete Käfig 21 kann, u.a. auch zur Halterung des plattenförmigen Aufsatzes 15 und des hülsenförmigen Einsatzes 16 mit feuerfester Isoliermasse ausgekleidet sein. Figur 7 läßt noch die Spannschrauben 33 erkennen, mit welchen das um die Achse 31 von der Halterung 32 abschwenkbare Gehäuse 20 des Schiebers an dem der Achse 31 gegenüberliegenden Ende am Boden des Metallschmelze enthaltenden Gefäßes unter Belastung der Abstützfedern 22 festgemacht wird. Auch bei der Ausführungsform gemäß Figuren 6 und 7 ist der mögliche Hub des aus Tragrahmen 4 und Verschlußkörper 1 gebildeten Schiebers so bemessen, daß wahlweise sowohl der Durchflußkanal 2 als auch der Durchflußkanal 3 in Arbeitsposition verfahren werden kann, mit der erforderlichen Verschiebemöglichkeit über dem Schließflächenbereich des plattenförmigen Aufsatzes 15.

Figure imgb0001
In the embodiment of a closure body 1 according to the invention shown in FIG. 5, it consists of an essentially cylindrical cage 21. The cage 21 has in its jacket a number of cutouts 33, in the illustrated case 4 in number, into which plate-shaped attachments 15 with a flow channel 2 can be used with an opening 5 and a surface 9 serving as a working surface. At its end faces, the cage 21 carries pins 18 for the rotatable reception in bearing parts 25, which in turn are supported on the supporting frame 4 via support springs 22, as can be seen in FIGS. 6 and 7. In particular, FIG. 6 also shows how the plate-shaped attachment 15 made of refractory material can be combined with a sleeve-shaped insert 16, which leads to an opening 6 in the recess 33 opposite the plate-shaped attachment 15. The plate-shaped attachment 15 and the sleeve-shaped insert 16 can also be formed in one piece. As can be seen from FIG. 6, a similar combination of perpendicular to each other is created in this way Flow channels 2 and 3 we in the embodiment of Figure 3 with a monolithic ceramic closure body 1. However, the embodiment according to Figures 6 and 7 has the advantage that the cage 21 can be reused many times and only the plate-shaped attachments 15 and the sleeve-shaped inserts 16 are replaced when worn Need to become. With the help of the springs 22, the work surface 9 of the plate-shaped attachment 15 is pressed against the work surface of the base plate 24 which is directed downwards and which, in this case, is also held in a frame 26 so that it can be pivoted downwards on the bottom of the vessel. The cage 21, which is designed as a hollow cylindrical rotating body, can be lined with refractory insulating compound, inter alia, for holding the plate-shaped attachment 15 and the sleeve-shaped insert 16. FIG. 7 also shows the tensioning screws 33, with which the housing 20 of the slide, which can be swiveled about the axis 31 from the holder 32, is fastened to the end of the vessel containing the molten metal at the end opposite the axis 31 under load of the support springs 22. Also in the embodiment according to Figures 6 and 7, the possible stroke of the slide formed from the support frame 4 and the closure body 1 is dimensioned such that both the flow channel 2 and the flow channel 3 can be moved into the working position, with the required displacement possibility over the closing surface area of the plate-shaped attachment 15.
Figure imgb0001

Claims (24)

1. Valve body (1) for a sliding gate valve on a vessel containing a metal melt which has at least one flow passage (2, 3) and is to be replaceably inserted in a fixed or movable support frame (4), characterised in that it is traversed by at least two separate flow passages (2, 3) for the metal melt whose openings (5, 6; 7, 8) lie in different flat surfaces (9, 10; 11, 12) of the valve body (1).
2. Valve body as claimed in Claim 1, characterised in that the two openings (5, 6; 7, 8) of a flow passage (2, 3) lie in surfaces (9, 10; 11, 12) which are parallel to one another.
3. Valve body as claimed in Claim 1 or 2, characterised in that the two openings (5, 6; 7, 8) of a flow passage (2, 3) lie in a respective working surface (9, 10; 11, 12).
4. Valve body as claimed in one of Claims 1 to 3, characterised in that the two openings (5, 6; 7, 8) of a flow passage (2, 3) lie in surfaces (9, 10; 11, 12) which are parallel to one another and of which at least two are constructed as working surfaces which are different from one another.
5. Valve body as claimed in one of Claims 1 to 4, characterised in that it has a prismatic or cylindrical shape.
6. Valve body as claimed in one of Claims 1 to 5, characterised in that the one flow passage (3) is disposed rotationally and/or mirror-symmetrically to the other flow passage (2).
7. Valve body as claimed in one of Claims 1 to 6, characterised in that the surfaces (9, 10; 11, 12) containing the openings (5, 6; 7, 8) of the flow passages (2, 3) have a rectangular shape, optionally rounded or bevelled at their ends, and the front side surfaces (13, 14) have a square, hexagonal or round shape.
8. Valve body as claimed in one of Claims 1 to 7, characterised in that the surfaces (9, 10; 11, 12) containing the openings (5, 6; 7, 8) of the flow passages (2, 3) have the same size and shape.
9. Valve body as claimed in one of Claims 1 to 8, characterised in that the axes of the flow passages (2, 3) are disposed perpendicular or at an angle of 60° to one another.
10. Valve body as claimed in one of Claims 1 to 9, characterised in that each flow passage (2, 3) is situated in the closure surface region associated with the respective other flow passage (3, 2).
11. Valve body as claimed in one of Claims 1 to 10, characterised in that the flow passages (2, 3) intersect one another and the unused passage sections are closed with blind plugs.
12. Valve body as claimed in one of Claims 1 to 11, characterised in that metallic reinforcements with rotary and/or pivotal bearing elements are connected to it, e.g. embedded in it.
13. Valve body as claimed in one of Claims 1 to 12, characterised in that it is constructed as a monolithic block of ceramic material.
14. Valve body as claimed in one of Claims 1 to 13, characterised in that it is provided in the region of the working surfaces (9, 10; 11, 12) and/or of the flow passages (2, 3) with plate- and/or sleeve-shaped fixtures (15) or inserts (16) of ceramic material.
15. Valve body as claimed in Claim 14, characterised in that the fixtures (15) or inserts (16) are set into a monolithic block of refractory concrete or are embedded into it.
16. Valve body as claimed in one of Claims 1 to 15, characterised in that it is constructed as a metallic cage (21) with plate- and/or sleeve-shaped fixtures (15) or inserts (16).
17. Valve body as claimed in one of Claims 1 to 16, characterised in that it is received in a metallic support frame (4).
18. Sliding gate valve for a vessel containing a metal melt with a valve body (1) as claimed in one of Claims 1 to 17, characterised in that the valve body (1) is mounted so as to be longitudinally movable and also rotatable.
19. Sliding gate valve as claimed in Claim 18, characterised in that the valve body (1) is movable both in the longitudinal direction and also in the transverse direction.
20. Sliding gate valve as claimed in Claim 18 or 19 with a metallic support frame (4) for receiving the valve body (1), characterised in that the valve body (1) has openings (17) on its end and/or longitudinal sides for engagement by pegs (18) on the support frame (4) or the valve body (1) has pegs (18) on its end and/or longitudinal sides for engagement in openings (17) in the support frame (4).
21. Sliding gate valve as claimed in one of Claims 18 to 20, characterised in that the valve body (1) is received with its support frame (4) in a housing (20) which may be swung outwardly.
22. Sliding gate valve as claimed in one of Claims 18 to 21, characterised in that the valve body (1) is pressed with at least one working surface (9, 10; 11, 12) against the working surface of a base plate (24) by means of support springs (22).
23. Sliding gate valve as claimed in one of Claims 18 to 22, characterised in that the pegs (18) on the valve body (1) or the pegs on the cage (21) are received in bearing portions (25) which are supported on the support frame (4) by means of the support springs (22).
24. Sliding gate valve as claimed in one of Claims 18 to 23, characterised in that the base plate (24) is mounted in a frame (26) which may be swung outwardly.
EP88907280A 1987-08-07 1988-07-16 Closure element for a sliding closure on a vessel containing molten metal and sliding closure with such a closure element Expired - Lifetime EP0325646B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88907280T ATE67107T1 (en) 1987-08-07 1988-07-16 CLOSURE BODY FOR A SLIDING CLOSURE ON A VESSEL CONTAINING METAL METAL AND SLIDING CLOSURE WITH SUCH CLOSURE BODY.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3726312 1987-08-07
DE19873726312 DE3726312A1 (en) 1987-08-07 1987-08-07 LOCKING BODY FOR A SLIDING CLOSURE ON A CONTAINER CONTAINING A METAL MELT AND SLIDING LOCKING WITH SUCH A LOCKING BODY

Publications (2)

Publication Number Publication Date
EP0325646A1 EP0325646A1 (en) 1989-08-02
EP0325646B1 true EP0325646B1 (en) 1991-09-11

Family

ID=6333292

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88907280A Expired - Lifetime EP0325646B1 (en) 1987-08-07 1988-07-16 Closure element for a sliding closure on a vessel containing molten metal and sliding closure with such a closure element

Country Status (5)

Country Link
US (1) US4991754A (en)
EP (1) EP0325646B1 (en)
AT (1) ATE67107T1 (en)
DE (2) DE3726312A1 (en)
WO (1) WO1989001373A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3726312A1 (en) * 1987-08-07 1989-02-16 Didier Werke Ag LOCKING BODY FOR A SLIDING CLOSURE ON A CONTAINER CONTAINING A METAL MELT AND SLIDING LOCKING WITH SUCH A LOCKING BODY
US5762256A (en) * 1995-08-28 1998-06-09 United States Surgical Corporation Surgical stapler
WO2003000329A2 (en) 2001-06-20 2003-01-03 Inhale Therapeutic Systems, Inc. Flow regulator for aerosol drug delivery device and methods

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US134374A (en) * 1872-12-31 Himan frank
DE2102056C3 (en) * 1971-01-16 1975-10-23 Heinz Fritz Dipl.-Ing. 7570 Baden-Baden Reichenkron Arrangement of a vehicle-based washing and disinfection system for waste containers
GB1380121A (en) * 1972-04-08 1975-01-08 Dyson Ltd J J Containers for molten metal
JPS5141974B2 (en) * 1973-02-12 1976-11-12
JPS5477237A (en) * 1977-11-28 1979-06-20 Shinagawa Refractories Co Fannshaped multiihole slideespray brick and sliding nozzle apparatus
JPS5533823A (en) * 1978-08-29 1980-03-10 Kurosaki Refract Co Ltd Plate in sliding nozzle device
DE2840171C3 (en) * 1978-09-15 1981-06-04 Stahlwerke Röchling-Burbach GmbH, 6620 Völklingen Closure device for the bottom pouring of pouring ladles
CA1251642A (en) * 1983-11-02 1989-03-28 Kazumi Arakawa Molten metal discharging device
US4801055A (en) * 1983-12-16 1989-01-31 Didier-Werke Ag Method of repairing or renewing a worn refractory plate of a sliding closure unit
DE3345539C1 (en) * 1983-12-16 1985-07-18 Didier-Werke Ag, 6200 Wiesbaden Fireproof locking plate for slide locks
DE3512796C1 (en) * 1985-04-10 1986-02-06 Stopinc Ag, Baar Slide unit in a slide lock
JPS6138774A (en) * 1985-06-13 1986-02-24 Kurosaki Refract Co Ltd Plate using method in sliding nozzle device
DE3726312A1 (en) * 1987-08-07 1989-02-16 Didier Werke Ag LOCKING BODY FOR A SLIDING CLOSURE ON A CONTAINER CONTAINING A METAL MELT AND SLIDING LOCKING WITH SUCH A LOCKING BODY

Also Published As

Publication number Publication date
US4991754A (en) 1991-02-12
DE3726312C2 (en) 1989-11-02
EP0325646A1 (en) 1989-08-02
DE3864810D1 (en) 1991-10-17
ATE67107T1 (en) 1991-09-15
DE3726312A1 (en) 1989-02-16
WO1989001373A1 (en) 1989-02-23

Similar Documents

Publication Publication Date Title
EP0277146B1 (en) Sliding stopper for the spout of a molten bath container
EP2268433B1 (en) Sliding closure for a receptacle containing molten metal
EP0727268B1 (en) Sliding closure system for a container holding a bath of molten metal
WO2016037732A1 (en) Sliding closure for a metallurgical vessel
DE2557726A1 (en) DEVICE FOR REPLACING CURRENT PIPES, IN PARTICULAR FOR A SPOUT, LOCKABLE WITH A SLIDER LOCK, ON A TANK OF CONTINUOUS CASTING PLANTS
DE60110784T2 (en) ONE PIECE INTERNAL OUTDOOR NOZZLE AND CLAMPING DEVICE FOR MOUNTING SUCH A CLEANING NOZZLE
DE1265923B (en) Pouring device
DE3423157C1 (en) Fireproof pair of plates for pivoting or rotating sliding closures
EP0819488B1 (en) Sliding gate closure for a molten metal containing vessel
DE2850183C2 (en) Closure device for ladles
DE3512799C1 (en) Sliding closure for metallurgical containers
AT395392B (en) LOCKING PLATE IN FIRE-RESISTANT MATERIAL FOR LINEAR OR TURNTABLE LATCHES
EP0325646B1 (en) Closure element for a sliding closure on a vessel containing molten metal and sliding closure with such a closure element
EP0920361B1 (en) Fireproof plate and a clamping device for a sliding gate at the outlet of a vessel containing molten metal
DE2824597A1 (en) DISCHARGE DEVICE, IN PARTICULAR TO CONTROL THE DRAINAGE OF THE CONTENTS OF CONTAINERS LIKE GIESSPFANNEN OR THE LIKE.
EP0578680B1 (en) Slide bolt for melting pots
EP0328776A1 (en) Closing and controlling device for casting fluid metal melts
EP0653261B1 (en) Tundish and nozzle block for the tundish
DE3001107C2 (en) Mobile device for collecting molten metal
DE1198537B (en) Quick change double perforated plate for screw extrusion
CH673097A5 (en) Metallurgical vessel sliding closure
DE1558163B1 (en) Pouring device
DE2330113A1 (en) Mount for interchangeable dipping nozzle - for continuous casting vessel, has guide track access from one side only
DE2352079A1 (en) SLIDER CLOSURE FOR POURS FOR LIQUID METALS, ESPECIALLY STEEL
DE2264969C3 (en) Slide gate valve for the pouring opening of a pouring vessel

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19881029

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17Q First examination report despatched

Effective date: 19900208

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 67107

Country of ref document: AT

Date of ref document: 19910915

Kind code of ref document: T

ET Fr: translation filed
REF Corresponds to:

Ref document number: 3864810

Country of ref document: DE

Date of ref document: 19911017

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO ROMA S.P.A.

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19920707

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19920713

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19920714

Year of fee payment: 5

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19920727

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19920811

Year of fee payment: 5

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19920908

Year of fee payment: 5

EPTA Lu: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19930705

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19930714

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19930716

Ref country code: AT

Effective date: 19930716

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19930717

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19930731

Ref country code: CH

Effective date: 19930731

Ref country code: BE

Effective date: 19930731

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19930731

Year of fee payment: 6

BERE Be: lapsed

Owner name: DIDIER-WERKE A.G.

Effective date: 19930731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19940331

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19940716

EUG Se: european patent has lapsed

Ref document number: 88907280.7

Effective date: 19940210

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19950201

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19940716

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19950401

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050716