EP0791419B1 - Sliding gate closure for opening and closing the outlet of a casting vessel for molten metals - Google Patents

Sliding gate closure for opening and closing the outlet of a casting vessel for molten metals Download PDF

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Publication number
EP0791419B1
EP0791419B1 EP97100536A EP97100536A EP0791419B1 EP 0791419 B1 EP0791419 B1 EP 0791419B1 EP 97100536 A EP97100536 A EP 97100536A EP 97100536 A EP97100536 A EP 97100536A EP 0791419 B1 EP0791419 B1 EP 0791419B1
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EP
European Patent Office
Prior art keywords
sliding gate
steel frame
plate
pressure plate
mortar layer
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP97100536A
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German (de)
French (fr)
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EP0791419A1 (en
Inventor
Heinz-Dieter Hannes
Rolf Himmler
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Zimmermann and Jansen GmbH
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Zimmermann and Jansen GmbH
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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
    • B22D41/40—Means for pressing the plates together

Definitions

  • the invention relates to a slide closure for opening and Closing the outlet channel of a casting vessel for metallic Melting, especially steel, according to the preamble of Claim 1.
  • the slide closure includes one Slider plate 1 with a central outlet opening 10, which in Open position with the outlet channel of the casting vessel corresponds, one on the underside of the slide plate attached pouring spout 6 with a made of refractory (FF) material existing pipe section 11 and a trough-like Steel frame 2, within which the slide plate 1 is immovable is held.
  • the fixation of the slide plate 1 within the Steel frame 2 is by a between slide plate and Steel frame formed layer of refractory mortar or the same ceramic casting compound guaranteed.
  • the corresponding Mortar layer is in FIG. 1 with the reference number 3 featured. Grab on the underside of the steel frame 2 so-called thermodynamic spring elements. These serve to do this, the slide plate 1 in close contact with one of the To keep the bottom of the casting vessel arranged head plate.
  • thermodynamic spring elements are shown in FIG Reference number 4 provided.
  • Figure 2 shows one in that described above Way laterally deflected pouring spout.
  • Figure 3 shows one Slider locks according to Figure 2, in Cut open lengthways. 1 the fracture line 12 described can be seen very well there.
  • GB-A 2 163 079 is a slide closure with a Pressure plate known.
  • the pressure plate is with a border, a ring or other engagement devices, to secure the upper area of a pouring spout.
  • DE-A 43 43 751 describes a slide closure, to open and close the outlet channel of a casting vessel is intended for metallic melts.
  • the slide lock includes one relative to one at the bottom of the casting vessel arranged head plate sliding slide plate, molded on the underside of a spout with flange is.
  • the flange extends over the bottom and at least part of the side edge of the slide plate and is surrounded by a steel frame.
  • the present Invention Based on the prior art according to FIG. 1, the present Invention the task of a slide closure to improve such that a buckling of the steel frame when lateral forces are applied to the pouring spout and thus a break of the pouring spout in the transition area to Steel frame is prevented, with the novel slide lock can easily be used in conventional systems should.
  • This task is characterized by the characteristics of the Claim 1 solved.
  • the steel frame floor or. on the underside by a pressure plate with a central recess for the passage of the pipe section of the pouring spout is reinforced, and that the thickness of the layer of FF mortar or the like reduced to one dimension on the bottom or underside is such that the height of the slide plate, steel frame, Mortar layer and pressure plate that of a conventional one Construction consisting of slide plate, steel frame and corresponds to mortar layer.
  • the subject of registration stands out due to the combination its distinctive features compared to the closest Prior art advantageous in several ways out.
  • the stability of the steel frame is particularly opposite Forces acting laterally on the pouring spout are increased.
  • the pressure forces exerted on the steel frame by spring elements are evenly distributed.
  • the additional Pressure plate has the slide closure according to the invention same installation height as conventional slide locks.
  • the essence of the present invention therefore lies in the arrangement a pressure plate on the underside of the steel frame.
  • This pressure plate has a central recess for the Passage of the pipe section of the pouring spout.
  • the Pressure plate ensures an even pressure distribution the through the thermodynamic spring elements 4 exerted compressive forces the steel frame and thus also on the slide plate 1.
  • the pressure plate mentioned bulging the bottom of the Steel frame 2 to the outside and inside.
  • the result is that too the pouring spout in spite of lateral forces original position remains, d. H. no longer sideways is deflected. This in turn has the consequence that a break of the Pouring spout in the transition area to the steel frame safely is avoided.
  • neither Bulge 5 and compression 7 on the underside of the steel frame 2 still the break 12 in the transition area between pouring spouts and steel frame 2 occur according to Figure 1.
  • the mortar layer 3 between slide plate 1 and Steel frame 2 reduced to a minimum, preferably to a thickness that is about 4 to 7%, especially about 6% of the Total height of slide plate, mortar layer, steel frame and Pressure plate is.
  • This small layer thickness also contributes Stability of the slide lock at.
  • a dent in the Steel frame inside or a compression 7 of the steel frame 1 is due to the minimum thickness of the Mortar layer no longer possible. There is material which could be displaced accordingly.
  • the stability of the overall construction can also be increased thereby increase that the pipe section of the pouring spout with is surrounded by a steel jacket that extends through the pressure plate and through the steel frame to the bottom of the Slider plate extends and directly on this supports.
  • FIG. 4 shows an inventive slide closure in Longitudinal section similar to that of Figure 1, the same Parts marked with the same reference numerals as in Figure 1 are.
  • the slide closure according to FIG. 4 also a slide plate 1 with outlet opening 10, a the spout 6 associated with the outlet opening 10 Pipe section 11, and a trough-like steel frame 2, within which the slide plate 1 is placed.
  • the Outlet nozzle 6 or its pipe section 11 is from one Surround steel jacket 13, which through the steel frame 2nd through to the underside of the slide plate 1 below Support on this extends.
  • the steel jacket 13 is the others welded to the steel frame 2.
  • the Welded joint along the edge of the opening in the bottom of the trough-like steel frame 2 through which the pouring spout extends with the steel jacket 13, is with the reference number 9 marked.
  • a pressure plate 8 made of steel is arranged, against which the thermodynamic elements 4 press in use. Through the pressure plate 8, the corresponding spring force evenly on the bottom of the steel frame 2 and thus on the Distributed slide plate 1. Furthermore prevents the Pressure plate 8 bulging or upsetting of the steel frame 2, or its bottom, as described with reference to Figure 1.
  • the Stability of the pouring spout 6 increased in that the Steel jacket 13 both through the pressure plate 8 and through the steel frame 2 to the bottom of the Slide plate 1 extends supported on this.
  • the thickness of the mortar layer between the bottom of the Slider plate 1 and the bottom of the tub-like steel frame 2 reduced to a minimum. This also improves the stability of the Pour spout against lateral deflection promoted, such as at the beginning.
  • the thickness is preferably Mortar layer 3 about 4 to 7%, in particular about 6% of the Total height of slide plate 1 including mortar layer 3, Steel frame 2 and pressure plate 8.
  • the pressure plate 8 has one Thickness that is about 20 to 28%, especially about 23 to 25% the total height of the slide plate including the mortar layer, Steel frame and pressure plate is.
  • the minimum thickness of the mortar layer 3 is due to the maximum Size of the granular aggregate of the mortar or one corresponding ceramic casting compound defined.
  • the thickness of the mortar layer 3 is on the underside reduced to a measure such that the height of the slide plate 1, steel frame 2, mortar layer 3 and pressure plate 8 of those a conventional construction consisting of a slide plate, Steel frame and mortar layer according to Figure 1 corresponds. On this way it is not necessary to create a new one To provide valve housing to the invention Insert slide lock.
  • the resulting reduction the thickness of the mortar layer 3 also has the advantage that no mass for displacement for a lateral deflection the pouring spout 6 is available. Accordingly carries the reduced thickness of the mortar layer 3 in addition to increasing the lateral stability of the pouring spout 6 at.
  • the pressure plate 8 has for the passage of the pouring spout 6 a central opening, the diameter of which is slightly larger than the outer diameter of the pouring spout 6, by approximately 1 to 3 %. This becomes a condition caused by thermal expansion Squeeze between the pressure plate 8 and the outer periphery of the Pouring spout 6 avoided.
  • the pressure plate 8 is preferably on the outside of the bottom of the tub-like steel jacket 2 spot welded. In principle, it is also conceivable that the pressure plate 8 is only loose to push over the pouring spout 6, because in the assembled Condition or within the valve body is the Pressure plate 8 through the thermodynamic spring elements 4 the underside of the tub-like steel jacket 2 held. All features disclosed in the registration documents are claimed as essential to the invention insofar as they are individually or are new in combination with the prior art.

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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)
  • Special Wing (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

Sliding stop for opening and closing the outlet of a casting vessel, in particular, for steel consists of a slider plate (1) with a pouring nozzle (6) made up of a refractory pipe segment (11) and a steel skirting frame (2). Fixing of the slider plate within the steel frame takes place by means of a layer (3) of refractory cement or a similar ceramic casting material. The stop comprises frame (2) reinforced from below by a pressure plate (8) with a central opening for the pouring nozzle.

Description

Die Erfindung betrifft einen Schieberverschluß zum Öffnen und Schließen des Auslaufkanals eines Gießgefäßes für metallische Schmelzen, insbesondere Stahl, gemäß dem Oberbegriff des Anspruches 1.The invention relates to a slide closure for opening and Closing the outlet channel of a casting vessel for metallic Melting, especially steel, according to the preamble of Claim 1.

Derartige Schieberverschlüsse sind allgemein bekannt. Ein solcher ist in Figur 1 im schematischen Längsschnitt dargestellt. Dementsprechend umfaßt der Schieberverschluß eine Schieberplatte 1 mit einer zentralen Auslauföffnung 10, die in Öffnungsstellung mit dem Auslaufkanal des Gießgefäßes korrespondiert, einen an der Unterseite der Schieberplatte angesetzten Ausgußstutzen 6 mit einem aus Feuerfest (FF)-Material bestehenden Rohrabschnitt 11 und einen wannenartigen Stahlrahmen 2, innerhalb dem die Schieberplatte 1 unverrückbar gehalten ist. Die Fixierung der Schieberplatte 1 innerhalb des Stahlrahmens 2 wird durch eine zwischen Schieberplatte und Stahlrahmen ausgebildete Schicht aus Feuerfest-Mörtel oder dergleichen Keramik-Gießmasse gewährleistet. Die entsprechende Mörtelschicht ist in Figur 1 mit der Bezugsziffer 3 gekennzeichnet. An der Unterseite des Stahlrahmens 2 greifen sogenannte thermodynamische Federelemente an. Diese dienen dazu, die Schieberplatte 1 in dichter Anlage an einer an der Unterseite des Gießgefäßes angeordneten Kopfplatte zu halten. Diese thermodynamischen Federelemente sind in Figur 1 mit der Bezugsziffer 4 versehen. Ergänzend zu Figur 1 wird auf die Ausführungen in der DE 19 51 447 B1 verwiesen. Such slide closures are generally known. On such is in Figure 1 in a schematic longitudinal section shown. Accordingly, the slide closure includes one Slider plate 1 with a central outlet opening 10, which in Open position with the outlet channel of the casting vessel corresponds, one on the underside of the slide plate attached pouring spout 6 with a made of refractory (FF) material existing pipe section 11 and a trough-like Steel frame 2, within which the slide plate 1 is immovable is held. The fixation of the slide plate 1 within the Steel frame 2 is by a between slide plate and Steel frame formed layer of refractory mortar or the same ceramic casting compound guaranteed. The corresponding Mortar layer is in FIG. 1 with the reference number 3 featured. Grab on the underside of the steel frame 2 so-called thermodynamic spring elements. These serve to do this, the slide plate 1 in close contact with one of the To keep the bottom of the casting vessel arranged head plate. These thermodynamic spring elements are shown in FIG Reference number 4 provided. In addition to Figure 1, the References in DE 19 51 447 B1 referenced.

Durch ein dem Ausgußstutzen zugeordnetes Schattenrohr, gehalten durch einen Manipulator, welches in Figur 1 nicht dargestellt ist, kann es zu einer seitlichen Auslenkung des Ausgußstutzens kommen. Eine derartige Auslenkung hat zur Folge, daß der Stahlrahmen an einer Seite sich nach unten ausbeult, während er an der gegenüberliegenden Seite unter entsprechender Verdrängung von Mörtel nach innen gedrückt wird. Diese Materialverdrängung ist möglich aufgrund der Tatsache, daß die Dicke der Mörtelschicht relativ groß ist und in der Regel zwischen etwa 10 bis 15 mm, insbesondere etwa 12 mm beträgt. Es handelt sich um einen hochtonerdehaltigen Mörtel, der nur begrenzt druckfest ist.Held by a shadow pipe assigned to the pouring spout by a manipulator, which is not shown in Figure 1 is, there can be a lateral deflection of the pouring spout come. Such a deflection has the consequence that the Steel frame bulges down on one side while he on the opposite side under appropriate Displacement of mortar is pressed inwards. This Material displacement is possible due to the fact that the Thickness of the mortar layer is relatively large and usually is between about 10 to 15 mm, in particular about 12 mm. It is a high alumina mortar that only is limited pressure resistant.

Die Folge der erwähnten Belastungen ist, daß der Ausgußstutzen im Übergangsbereich zwischen Rohrabschnitt 11 und Stahlrahmen 2 bricht. In Figur 1 ist die Bruchlinie mit der Bezugsziffer 12 gekennzeichnet.The consequence of the loads mentioned is that the pouring spout in the transition area between pipe section 11 and steel frame 2 breaks. In Figure 1, the break line with the reference number 12 featured.

Figur 2 zeigt einen in der oben beschriebenen Weise seitlich ausgelenkten Ausgußstutzen. Figur 3 zeigt einen Schieberverschlusse gemäß Figur 2, in Längsrichtung aufgeschnitten. Die anhand der Figur 1 beschriebene Bruchlinie 12 ist dort sehr gut erkennbar. Figure 2 shows one in that described above Way laterally deflected pouring spout. Figure 3 shows one Slider locks according to Figure 2, in Cut open lengthways. 1 the fracture line 12 described can be seen very well there.

Aus der GB-A 2 163 079 ist ein Schieberverschluß mit einer Druckplatte bekannt. Die Druckplatte ist mit einer Einfassung, einem Ring oder anderen Eingriffvorrichtungen ausgebildet, um den oberen Bereich eines Ausgußstutzens zu sichern. Zwischen der Druckplatte und einer Schieberplatte befindet sich ein Stahlrahmen, der sich jedoch nicht bis zum Ausgußstutzen hin erstreckt.From GB-A 2 163 079 is a slide closure with a Pressure plate known. The pressure plate is with a border, a ring or other engagement devices, to secure the upper area of a pouring spout. Is located between the pressure plate and a slide plate a steel frame, which however does not extend to the pouring spout extends.

In der DE-A 43 43 751 ist ein Schieberverschluß beschrieben, der zum Öffnen und Schließen des Auslaufkanals eines Gießgefäßes für metallische Schmelzen vorgesehen ist. Der Schieberverschluß umfaßt eine relativ zu einer am Boden des Gießgefäßes angeordneten Kopfplatte verschiebbare Schieberplatte, an deren Unterseite ein Ausgußstutzen mit Flansch angeformt ist. Der Flansch erstreckt sich über die Unterseite und wenigstens einen Teil des seitlichen Randes der Schieberplatte und ist von einem Stahlrahmen eingefaßt. Ein Stahlmantel, der den Rohrabschnitt des Ausgußstutzens umgibt, erstreckt sich durch den Stahlrahmen hindurch bis an die Unterseite der Schieberplatte.DE-A 43 43 751 describes a slide closure, to open and close the outlet channel of a casting vessel is intended for metallic melts. The slide lock includes one relative to one at the bottom of the casting vessel arranged head plate sliding slide plate, molded on the underside of a spout with flange is. The flange extends over the bottom and at least part of the side edge of the slide plate and is surrounded by a steel frame. A steel jacket that surrounds the pipe section of the pouring spout, extends through the steel frame to the bottom of the Slide plate.

Ausgehend vom Stand der Technik gemäß Fig. 1 liegt der vorliegenden Erfindung die Aufgabe zugrunde, einen Schieberverschluß derart zu verbessern, daß ein Ausbeulen des Stahlrahmens bei Angriff von seitlichen Kräften am Ausgußstutzen und damit ein Bruch des Ausgußstutzens im Übergangsbereich zum Stahlrahmen verhindert wird, wobei der neuartige Schieberverschluß ohne weiteres in herkömmliche Anlagen einsetzbar sein soll.Based on the prior art according to FIG. 1, the present Invention the task of a slide closure to improve such that a buckling of the steel frame when lateral forces are applied to the pouring spout and thus a break of the pouring spout in the transition area to Steel frame is prevented, with the novel slide lock can easily be used in conventional systems should.

Diese Aufgabe wird durch die kennzeichnenden Merkmale des Patentanspruches 1 gelöst.This task is characterized by the characteristics of the Claim 1 solved.

Erfindungsgemäß ist vorgesehen, daß der Stahlrahmen boden-bzw. unterseitig durch eine Druckplatte mit zentraler Ausnehmung für den Durchtritt des Rohrabschnitts des Ausgußstutzens verstärkt ist, und daß die Dicke der Schicht aus FF-Mörtel oder dergleichen boden- bzw. unterseitig auf ein Maß reduziert ist derart, daß die Höhe von Schieberplatte, Stahlrahmen, Mörtelschicht und Druckplatte derjenigen einer herkömmlichen Konstruktion bestehend aus Schieberplatte, Stahlrahmen und Mörtelschicht entspricht.According to the invention it is provided that the steel frame floor or. on the underside by a pressure plate with a central recess for the passage of the pipe section of the pouring spout is reinforced, and that the thickness of the layer of FF mortar or the like reduced to one dimension on the bottom or underside is such that the height of the slide plate, steel frame, Mortar layer and pressure plate that of a conventional one Construction consisting of slide plate, steel frame and corresponds to mortar layer.

Der Anmeldungsgegenstand zeichnet sich aufgrund der Kombination seiner kennzeichnenden Merkmale gegenüber dem nächstliegenden Stand der Technik vorteilhaft in mehrfacher Hinsicht aus. Die Stabilität des Stahlrahmens wird insbesondere gegenüber seitlich am Ausgußstutzen angreifenden Kräften erhöht. Die durch Federelemente auf den Stahlrahmen ausgeübten Druckkräfte werden gleichmäßig verteilt. Trotz der zusätzlichen Druckplatte hat der erfindungsgemäße Schieberverschluß die gleiche Einbauhöhe wie herkömmliche Schieberverschlüsse.The subject of registration stands out due to the combination its distinctive features compared to the closest Prior art advantageous in several ways out. The stability of the steel frame is particularly opposite Forces acting laterally on the pouring spout are increased. The pressure forces exerted on the steel frame by spring elements are evenly distributed. Despite the additional Pressure plate has the slide closure according to the invention same installation height as conventional slide locks.

Vorteilhafte Ausgestaltungen und besondere Ausführungsformen sind Gegenstand der Unteransprüche.Advantageous refinements and special embodiments are the subject of the subclaims.

Der Kern der vorliegenden Erfindung liegt also in der Anordnung einer Druckplatte an der Unterseite des Stahlrahmens. Diese Druckplatte weist eine zentrale Ausnehmung für den Durchtritt des Rohrabschnittes des Ausgußstutzens auf. Die Druckplatte gewährleistet eine gleichmäßige Druckverteilung der durch die thermodynamischen Federelemente 4 ausgeübten Druckkräfte auf den Stahlrahmen und damit auch auf die Schieberplatte 1. Bei auf den Ausgußstutzen seitlich einwirkenden Kräften verhindert die erwähnte Druckplatte ein Ausbeulen der Unterseite des Stahlrahmens 2 nach außen und innen. Die Folge ist, daß auch der Ausgußstutzen trotz seitlich einwirkender Kräfte in seiner ursprünglichen Position bleibt, d. h. nicht mehr seitlich ausgelenkt wird. Dies wiederum hat zur Folge, daß ein Bruch des Ausgußstutzens im Übergangsbereich zum Stahlrahmen sicher vermieden wird. Versuche haben gezeigt, daß bei einem erfindungsgemäß ausgebildeten Schieberverschluß weder die Ausbeulung 5 und Stauchung 7 an der Unterseite des Stahlrahmens 2 noch der Bruch 12 im Übergangsbereich zwischen Ausgußstutzen und Stahlrahmen 2 gemäß Figur 1 auftreten.The essence of the present invention therefore lies in the arrangement a pressure plate on the underside of the steel frame. This pressure plate has a central recess for the Passage of the pipe section of the pouring spout. The Pressure plate ensures an even pressure distribution the through the thermodynamic spring elements 4 exerted compressive forces the steel frame and thus also on the slide plate 1. At forces acting laterally on the pouring spout are prevented the pressure plate mentioned bulging the bottom of the Steel frame 2 to the outside and inside. The result is that too the pouring spout in spite of lateral forces original position remains, d. H. no longer sideways is deflected. This in turn has the consequence that a break of the Pouring spout in the transition area to the steel frame safely is avoided. Experiments have shown that in one inventive slide closure neither Bulge 5 and compression 7 on the underside of the steel frame 2 still the break 12 in the transition area between pouring spouts and steel frame 2 occur according to Figure 1.

Um die gleiche Einbauhöhe des Schieberverschlusses zu erhalten, wird die Mörtelschicht 3 zwischen Schieberplatte 1 und Stahlrahmen 2 auf ein Minimum reduziert, und zwar vorzugsweise auf eine Dicke, die etwa 4 bis 7 %, insbesondere etwa 6 % der Gesamthöhe von Schieberplatte, Mörtelschicht, Stahlrahmen und Druckplatte beträgt. Auch diese geringe Schichtdicke trägt zur Stabilität des Schieberverschlusses bei. Ein Ausbeulen des Stahlrahmens nach innnen bzw. eine Stauchung 7 des Stahlrahmens gemäß Figur 1 ist aufgrund der minimalen Dicke der Mörtelschicht nicht mehr möglich. Es feht Material, welches entsprechend verdrängt werden könnte.To maintain the same installation height of the slide lock, the mortar layer 3 between slide plate 1 and Steel frame 2 reduced to a minimum, preferably to a thickness that is about 4 to 7%, especially about 6% of the Total height of slide plate, mortar layer, steel frame and Pressure plate is. This small layer thickness also contributes Stability of the slide lock at. A dent in the Steel frame inside or a compression 7 of the steel frame 1 is due to the minimum thickness of the Mortar layer no longer possible. There is material which could be displaced accordingly.

Die Stabilität der Gesamtkonstruktion läßt sich zusätzlich dadurch erhöhen, daß der Rohrabschnitt des Ausgußstutzens mit einem Stahlmantel umgeben wird, der sich durch die Druckplatte und den Stahlrahmen hindurch bis an die Unterseite der Schieberplatte erstreckt und sich an dieser unmittelbar abstützt.The stability of the overall construction can also be increased thereby increase that the pipe section of the pouring spout with is surrounded by a steel jacket that extends through the pressure plate and through the steel frame to the bottom of the Slider plate extends and directly on this supports.

Nachstehend ist ein erfindungsgemäß ausgebildeter Schieberverschluß anhand der Figur 4 näher erläutert. Diese zeigt einen erfindungsgemäß ausgebildeten Schieberverschluß im Längsschnitt ähnlich demjenigen gemäß Figur 1, wobei gleiche Teile mit denselben Bezugsziffern wie in Figur 1 gekennzeichnet sind. Demgemäß umfaßt der Schieberverschluß gemäß Figur 4 ebenfalls eine Schieberplatte 1 mit Auslauföffnung 10, einen der Auslauföffnung 10 zugeordneten Ausgußstutzen 6 mit Rohrabschnitt 11, und einen wannenartigen Stahlrahmen 2, innerhalb dem die Schieberplatte 1 plaziert ist. Der Auslaufstutzen 6 bzw. dessen Rohrabschnitt 11 ist von einem Stahlmantel 13 umgeben, der sich durch den Stahlrahmen 2 hindurch bis an die Unterseite der Schieberplatte 1 unter Abstützung an dieser erstreckt. Der Stahlmantel 13 ist des weiteren mit dem Stahlrahmen 2 schweißverbunden. Die Schweißverbindung längs des Randes der Öffnung im Boden des wannenartigen Stahlrahmens 2, durch die sich der Ausgußstutzen samt Stahlmantel 13 hindurcherstreckt, ist mit der Bezugsziffer 9 gekennzeichnet. An der Unterseite des wannenartigen Stahlrahmens 2 ist eine Druckplatte 8 aus Stahl angeordnet, gegen die im Einsatz die thermodynamischen Elemente 4 drücken. Durch die Druckplatte 8 wird die entsprechende Federkraft gleichmäßig auf den Boden des Stahlrahmens 2 und damit auf die Schieberplatte 1 verteilt. Des weiteren verhindert die Druckplatte 8 ein Ausbeulen oder Stauchen des Stahlrahmens 2, bzw. dessen Bodens, wie anhand der Figur 1 beschrieben. Damit wird durch die Druckplatte 8 die Stabilität des Ausgußstutzens 6 gegenüber seitlicher Auslenkung erhöht. Zusätzlich wird die Stabilität des Ausgußstutzens 6 dadurch erhöht, daß der Stahlmantel 13 sich sowohl durch die Druckplatte 8 als auch durch den Stahlrahmen 2 hindurch bis an die Unterseite der Schieberplatte 1 unter Abstützung an dieser erstreckt.Below is one designed according to the invention Slider closure explained in more detail with reference to FIG 4. This shows an inventive slide closure in Longitudinal section similar to that of Figure 1, the same Parts marked with the same reference numerals as in Figure 1 are. Accordingly, the slide closure according to FIG. 4 also a slide plate 1 with outlet opening 10, a the spout 6 associated with the outlet opening 10 Pipe section 11, and a trough-like steel frame 2, within which the slide plate 1 is placed. The Outlet nozzle 6 or its pipe section 11 is from one Surround steel jacket 13, which through the steel frame 2nd through to the underside of the slide plate 1 below Support on this extends. The steel jacket 13 is the others welded to the steel frame 2. The Welded joint along the edge of the opening in the bottom of the trough-like steel frame 2 through which the pouring spout extends with the steel jacket 13, is with the reference number 9 marked. At the bottom of the tub-like Steel frame 2, a pressure plate 8 made of steel is arranged, against which the thermodynamic elements 4 press in use. Through the pressure plate 8, the corresponding spring force evenly on the bottom of the steel frame 2 and thus on the Distributed slide plate 1. Furthermore prevents the Pressure plate 8 bulging or upsetting of the steel frame 2, or its bottom, as described with reference to Figure 1. In order to is the stability of the pouring spout by the pressure plate 8 6 increased compared to lateral deflection. In addition, the Stability of the pouring spout 6 increased in that the Steel jacket 13 both through the pressure plate 8 and through the steel frame 2 to the bottom of the Slide plate 1 extends supported on this.

Um eine unveränderte Einbauhöhe der Anordnung zu erhalten, ist die Dicke der Mörtelschicht zwischen der Unterseite der Schieberplatte 1 und dem Boden des wannenartigen Stahlrahmens 2 auf ein Minimum reduziert. Auch dadurch wird die Stabilität des Ausgußstutzens gegenüber seitlicher Auslenkung gefördert, wie eingangs ausgeführt. Vorzugsweise beträgt die Dicke der Mörtelschicht 3 etwa 4 bis 7 %, inbesondere etwa 6 % der Gesamthöhe von Schieberplatte 1 samt Mörtelschicht 3, Stahlrahmen 2 und Druckplatte 8. Die Druckplatte 8 weist eine Dicke auf, die etwa 20 bis 28 %, insbesondere etwa 23 bis 25 % der Gesamthöhe von Schieberplatte samt Mörtelschicht, Stahlrahmen und Druckplatte beträgt.To get an unchanged installation height of the arrangement, is the thickness of the mortar layer between the bottom of the Slider plate 1 and the bottom of the tub-like steel frame 2 reduced to a minimum. This also improves the stability of the Pour spout against lateral deflection promoted, such as at the beginning. The thickness is preferably Mortar layer 3 about 4 to 7%, in particular about 6% of the Total height of slide plate 1 including mortar layer 3, Steel frame 2 and pressure plate 8. The pressure plate 8 has one Thickness that is about 20 to 28%, especially about 23 to 25% the total height of the slide plate including the mortar layer, Steel frame and pressure plate is.

Die minimale Dicke der Mörtelschicht 3 ist durch die maximale Größe der körnigen Zuschlagstoffe des Mörtels oder einer entsprechenden keramischen Gießmasse definiert.The minimum thickness of the mortar layer 3 is due to the maximum Size of the granular aggregate of the mortar or one corresponding ceramic casting compound defined.

Wie dargelegt, ist die Dicke der Mörtelschicht 3 unterseitig auf ein Maß reduziert derart, daß die Höhe von Schieberplatte 1, Stahlrahmen 2, Mörtelschicht 3 und Druckplatte 8 derjenigen einer herkömmlichen Konstruktion bestehend aus Schieberplatte, Stahlrahmen und Mörtelschicht gemäß Figur 1 entspricht. Auf diese Weise ist es nicht erforderlich, ein neues Schiebergehäuse bereitzustellen, um den erfindungsgemäßen Schieberverschluß einzusetzen. Die dadurch bedingte Reduzierung der Dicke der Mörtelschicht 3 hat darüberhinaus den Vorteil, daß keine Masse zur Verdrängung für eine seitliche Auslenkung des Ausgußstutzens 6 zur Verfügung steht. Dementsprechend trägt die auf ein Minimum reduzierte Dicke der Mörtelschicht 3 zusätzlich zur Erhöhung der Seitenstabilität des Ausgußstutzens 6 bei.As explained, the thickness of the mortar layer 3 is on the underside reduced to a measure such that the height of the slide plate 1, steel frame 2, mortar layer 3 and pressure plate 8 of those a conventional construction consisting of a slide plate, Steel frame and mortar layer according to Figure 1 corresponds. On this way it is not necessary to create a new one To provide valve housing to the invention Insert slide lock. The resulting reduction the thickness of the mortar layer 3 also has the advantage that no mass for displacement for a lateral deflection the pouring spout 6 is available. Accordingly carries the reduced thickness of the mortar layer 3 in addition to increasing the lateral stability of the pouring spout 6 at.

Die Druckplatte 8 weist für den Durchgang des Ausgußstutzens 6 eine zentrale Öffnung auf, deren Durchmesser etwas größer ist als der Außendurchmesser des Ausgußstutzens 6, und zwar um etwa 1 bis 3 %. Damit wird eine durch Wärmedehnungen bedingte Zwängung zwischen Druckplatte 8 und dem äußeren Umfang des Ausgußstutzens 6 vermieden.The pressure plate 8 has for the passage of the pouring spout 6 a central opening, the diameter of which is slightly larger than the outer diameter of the pouring spout 6, by approximately 1 to 3 %. This becomes a condition caused by thermal expansion Squeeze between the pressure plate 8 and the outer periphery of the Pouring spout 6 avoided.

Die Druckplatte 8 ist vorzugsweise an der Außenseite des Bodens des wannenartigen Stahlmantels 2 punktuell angeschweißt. Grundsätzlich ist es auch denkbar, die Druckplatte 8 nur lose über den Ausgußstutzen 6 zu schieben, denn im montierten Zustand bzw. innerhalb des Schiebergehäuses wird die Druckplatte 8 durch die thermodynamischen Federelemente 4 an der Unterseite des wannenartigen Stahlmantels 2 gehalten. Sämtliche in den Anmeldungsunterlagen offenbarten Merkmale werden als erfindungswesentlich beansprucht, soweit sie einzeln oder in Kombination gegenüber dem Stand der Technik neu sind. The pressure plate 8 is preferably on the outside of the bottom of the tub-like steel jacket 2 spot welded. In principle, it is also conceivable that the pressure plate 8 is only loose to push over the pouring spout 6, because in the assembled Condition or within the valve body is the Pressure plate 8 through the thermodynamic spring elements 4 the underside of the tub-like steel jacket 2 held. All features disclosed in the registration documents are claimed as essential to the invention insofar as they are individually or are new in combination with the prior art.

Bezugszeichenliste :Reference symbol list:

  • 1 Schieberplatte1 slide plate
  • 2 Stahlrahmen2 steel frames
  • 3 Feuerfest (FF)-Mörtelschicht3 Refractory (FF) mortar layer
  • 4 Federelement (thermodynamische Federelemente)4 spring element (thermodynamic spring elements)
  • 5 Ausbeulung5 bulge
  • 6 Ausgußstutzen6 pouring spouts
  • 7 Stauchung7 upsetting
  • 8 Druckplatte8 pressure plate
  • 9 Ringschweißnaht9 ring weld
  • 10 Auslauföffnung10 outlet opening
  • 11 Rohrabschnitt11 pipe section
  • 12 Bruchlinie12 fault line
  • 13 Stahlmantel13 steel jacket

    • Claims (9)

    1. Sliding gate closure for opening and closing the outlet channel of a casting vessel for molten metals having a sliding gate plate (1), to the underside of which there is attached a pouring nozzle (6) comprising a portion of pipe (11) consisting of refractory material, and which is enclosed by a trough-like steel frame (2), the fixing of the sliding gate plate (1) within the steel frame (2) being ensured by a layer (3), formed between the sliding gate plate and steel frame, of refractory mortar or suchlike ceramic casting compound, and the portion of pipe (11) of the pouring nozzle (6) being surrounded by a steel jacket (13) joined by an annular weld seam (9) to the steel frame (2) where the portion of pipe (11) passes through the latter, characterized in that the steel frame (2) is reinforced, at the bottom side or underside, by a pressure plate (8) with a central cutout for the portion of pipe (11) of the pouring nozzle (6) to pass through, and in that the thickness of the layer (3) of refractory mortar or the like is reduced, at the bottom side or underside, to a degree such that the height of the sliding gate plate (1), steel frame (2), mortar layer (3) and pressure plate (8) corresponds to that of a conventional design consisting of a sliding gate plate, steel frame and mortar layer.
    2. Sliding gate closure according to Claim 1, characterized in that the sliding gate closure is intended for a casting vessel for molten steels.
    3. Sliding gate closure according to Claim 1 or 2, characterized in that the thickness of the mortar layer (3) is 4 to 7% of the total height of the sliding gate plate (1) together with mortar layer (3), steel frame (2) and pressure plate (8).
    4. Sliding gate closure according to Claim 1 or 2, characterized in that the thickness of the mortar layer (3) is 6% of the total height of the sliding gate plate (1) together with mortar layer (3), steel frame (2) and pressure plate (8).
    5. Sliding gate closure according to one of Claims 1 to 4, characterized in that the thickness of the pressure plate (8) is 20 to 28% of the total height of the sliding gate plate (1), mortar layer (3), steel frame (2) and pressure plate (8).
    6. Sliding gate closure according to Claim 1-4, characterized in that the thickness of the pressure plate (8) is 23 to 25% of the total height of the sliding gate plate (1), mortar layer (3), steel frame (2) and pressure plate (8).
    7. Sliding gate closure according to one of Claims 1 to 6, characterized in that the steel jacket (13) around the portion of pipe (11) of the pouring nozzle (6) extends through the bottom of the trough-like steel frame (2) up to the underside of the sliding gate plate (1).
    8. Sliding gate closure according to one of Claims 1-7, characterized in that the steel jacket (13) directly supports the sliding gate plate (1).
    9. Sliding gate closure according to one of Claims 1 to 8, characterized in that the central opening of the pressure plate (8) has an inside diameter which is 1 to 3% greater than the outside diameter of the portion of pipe (11) of the pouring nozzle (6).
    EP97100536A 1996-02-22 1997-01-15 Sliding gate closure for opening and closing the outlet of a casting vessel for molten metals Expired - Lifetime EP0791419B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE19606686A DE19606686A1 (en) 1996-02-22 1996-02-22 Slider closure for opening and closing the outlet channel of a casting vessel for metallic melts
    DE19606686 1996-02-22

    Publications (2)

    Publication Number Publication Date
    EP0791419A1 EP0791419A1 (en) 1997-08-27
    EP0791419B1 true EP0791419B1 (en) 2000-08-23

    Family

    ID=7786155

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP97100536A Expired - Lifetime EP0791419B1 (en) 1996-02-22 1997-01-15 Sliding gate closure for opening and closing the outlet of a casting vessel for molten metals

    Country Status (4)

    Country Link
    EP (1) EP0791419B1 (en)
    AT (1) ATE195679T1 (en)
    DE (2) DE19606686A1 (en)
    ES (1) ES2151687T3 (en)

    Family Cites Families (7)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    BE757219A (en) 1969-10-13 1971-03-16 Interstop Ag DISCHARGE DRAWER CLOSURE FOR METAL CASTING TANKS
    AU502205B2 (en) * 1975-02-25 1979-07-19 Kurosaki Refractories Co. Ltd. + Nippon Steel Corp. Assembling a sliding gate
    US4561573A (en) * 1982-08-20 1985-12-31 Flo-Con Systems, Inc. Valve and replaceable collector nozzle
    DE3334438C1 (en) * 1983-09-23 1984-07-12 Zimmermann & Jansen GmbH, 5160 Düren Manual actuation mechanism for a ladle slide closure
    US4582232A (en) * 1984-06-19 1986-04-15 Flo-Con Systems, Inc. Valve, clamp, refractory and method
    DE4343751A1 (en) * 1993-12-21 1995-06-22 Zimmermann & Jansen Gmbh Slide closure
    ES2122857B1 (en) * 1995-03-17 1999-07-01 Deguisa S A SLIDING CLOSURE TO CONTROL FLOW OF METAL FLOW FROM A CASTING CONTAINER.

    Also Published As

    Publication number Publication date
    EP0791419A1 (en) 1997-08-27
    ES2151687T3 (en) 2001-01-01
    ATE195679T1 (en) 2000-09-15
    DE19606686A1 (en) 1997-08-28
    DE59702224D1 (en) 2000-09-28

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