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EP1032481A1 - Pouring device for metallurgic vessels and a method for controlling the quantity of discharge - Google Patents

Pouring device for metallurgic vessels and a method for controlling the quantity of discharge

Info

Publication number
EP1032481A1
EP1032481A1 EP98958803A EP98958803A EP1032481A1 EP 1032481 A1 EP1032481 A1 EP 1032481A1 EP 98958803 A EP98958803 A EP 98958803A EP 98958803 A EP98958803 A EP 98958803A EP 1032481 A1 EP1032481 A1 EP 1032481A1
Authority
EP
European Patent Office
Prior art keywords
filter
pouring
melt
immersion
slide plates
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP98958803A
Other languages
German (de)
French (fr)
Other versions
EP1032481B1 (en
Inventor
Ulrich Horbach
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.)
SMS Siemag AG
Original Assignee
SMS Demag 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 SMS Demag AG filed Critical SMS Demag AG
Publication of EP1032481A1 publication Critical patent/EP1032481A1/en
Application granted granted Critical
Publication of EP1032481B1 publication Critical patent/EP1032481B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/18—Controlling or regulating processes or operations for pouring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D43/00—Mechanical cleaning, e.g. skimming of molten metals
    • B22D43/001—Retaining slag during pouring molten metal
    • B22D43/004—Retaining slag during pouring molten metal by using filtering means
    • 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
    • B22D41/24—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings characterised by a rectilinearly movable plate

Definitions

  • the invention relates to a pouring device for metallurgical vessels, in particular for steel melts, with slide plates which can be placed in series one behind the other and pushed out again, into which filters can be inserted, and a dip tube protruding into a mold, and a method for controlling the flow rate of a melt.
  • a ceramic filter for cleaning metallurgical melts, in particular steel melts, which can be installed in refractory wear parts through which melt flows.
  • several slide plates performing different functions are designed as slide-through closures, individual plates being arranged on rails one behind the other under a vessel opening and being pushed out again.
  • the spout closure known from this document is intended to enable a fast, reliable replacement of clogged filters during the casting operation.
  • Replacing a filter is only intended as a complete component. Replacing the filter element is associated with an interruption in the melt supply into the mold. Depending on the duration of this fault, the casting speed must be reduced significantly in order to be able to continue the casting process Chill mold, which leads to a significant loss in quality of the strand concerned
  • the invention has set itself the goal of creating a pouring device for metallurgical vessels, in which the outflowing liquid metal is constantly filtered with uniform flow conditions in the dip tube
  • the immersion pouring tube is closed by a slide plate which has a filter part which can be displaced transversely to the pouring direction and which keeps the free passage cross section constant in the immersion pouring tube.
  • the flow rate of the melt flowing through the immersion pouring tube is recorded, which at the same time is a measure of the clogging of the filter openings represents, and the slide plates are moved in a suitable manner
  • slide plates are used, which have a filter part that has openings arranged in the casting direction and have at least one full-walled plate part.
  • actuators are provided with which the slide plates in the direction of travel (x direction), and additionally in the same plane, but perpendicular to this These actuators can be moved (ie in the y direction) are connected via control devices with measuring elements with which the flow through the immersion pouring tube can be detected.
  • the free cross-section can be enlarged or reduced during the casting operation.
  • the device according to the invention enables a constant operating sequence over any length of time, since the filter segments can be exchanged without influencing the operating sequence.
  • FIG. 1 An example of the invention is shown in FIG. 1.
  • FIG. 1 shows a distributor 11, not shown in detail, which has a distributor pouring stone 12 with a pouring channel 13.
  • the distributor pouring stone 11 is with an upper guide plate 21 and one in the
  • Slide plates 23 can be pushed between the upper guide plate 21 and the lower guide plate 22.
  • the individual slide plates have two full-walled plate parts 24, which are arranged on both sides of a filter part 25. Openings 27 are provided in the filter part 25, which are still completely open in the left part of the figure and are at least partially added as a filter part 26 in the right part of the figure.
  • the slide plate 23 are connected to actuators 31 acting in the conveying direction (x direction) and actuators 32 acting transversely to the conveying direction (i.e. in the y direction).
  • the actuators 31 and 32 are connected to a control device 33, which with measuring elements 34 for flow rate detection and with measuring elements 35 for
  • the distributor pouring stone 12 has a pouring channel 13 which continues below the slide plates as an immersion pouring tube 28, which projects into a mold 41 (not shown).
  • the slide plate 23 can be moved, as indicated.
  • a partial area of the filter part 26 and a partial area of the full-walled plate part 24 can be located under the pouring tube.
  • Actuator acting in the conveying direction (x-direction) 32 Actuator acting perpendicular to the conveying direction (i.e. in the y-direction)

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Control Of Non-Electrical Variables (AREA)
  • Continuous Casting (AREA)
  • Basic Packing Technique (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Abstract

A pouring device for metallurgic vessels, particularly for steel melts, with slide plates which can be adjusted and slid out again one behind the other in a row under a vessel opening and into which filters can be inserted, and with an immersion pipe projecting into a mold. The slide plates have a filter part which is provided with openings arranged in the casting direction and at least one solid web plate part actuators are provided by which the slide plates can be displaced in the conveying direction (x-direction) and, in addition, in the same plane, but vertical to the conveying direction (i.e., in the y-direction).

Description

AUSGIESSEINRICHTUNG FÜR METALLURGISCHE GEFÄSSE UND EIN VERFAHREN ZUR ABFLUSSMEN- GENSTEUERUNGPOURING DEVICE FOR METALLURGICAL VESSELS AND A METHOD FOR DISCHARGE QUANTITY CONTROL
Beschreibungdescription
Die Erfindung betrifft eine Ausgießeinrichtung für metallurgische Gefäße, insbesondere für Stahlschmelzen, mit in Reihe hintereinander unter eine Gefäßöffnuπg stellbare und wieder ausschiebbare Schieberplatten, in die Fiiter einbringbar sind und einem in eine Kokille hineinragenden Tauchrohr sowie ein Verfahren zur Steuerung der Abflußmenge einer Schmelze.The invention relates to a pouring device for metallurgical vessels, in particular for steel melts, with slide plates which can be placed in series one behind the other and pushed out again, into which filters can be inserted, and a dip tube protruding into a mold, and a method for controlling the flow rate of a melt.
Aus DE 40 12 093 ist zum Reinigen von metallurgischen Schmelzen, insbesondere von Stahlschmelzen, ein keramischer Filter bekannt, der in von Schmelze durchflossenen feuerfesten Verschleißteilen einbaubar ist. In einer Ausgestaltungsform sind mehrere unterschiedliche Funktionen ausübende Schieberplatten als Durchschieberverschluß ausgestaltet, wobei auf Schienen in Reihe hintereinander unter eine Gefäßöffnung stellbar und wieder herausschiebbar einzelne Platten angeordnet sind.From DE 40 12 093 a ceramic filter is known for cleaning metallurgical melts, in particular steel melts, which can be installed in refractory wear parts through which melt flows. In one embodiment, several slide plates performing different functions are designed as slide-through closures, individual plates being arranged on rails one behind the other under a vessel opening and being pushed out again.
Der aus dieser Schrift bekannte Ausgußverschluß soll ein schnelles betriebssicheres Austauschen verstopfter Filter während des Gießbetriebes ermöglichen.The spout closure known from this document is intended to enable a fast, reliable replacement of clogged filters during the casting operation.
Nachteil dieser Vorrichtung ist es, daß während des Gießbetriebes sich der Filter langsam zusetzt und sich der Widerstand in der Ausgießöffπung kontinuierlich erhöht. Das langsame Zusetzen bewirkt dabei einen Anstieg des Druckveriustes, den der Filter ausübt. Dieser Anstieg muß durch das öffnen einer zusätzlichen Regelarmatur ausgeglichen werden, die sich bei vollständig freiem Filter in einer teilweise geschlosseπen Stellung befindet Über dieses Gerat hat auch die Regelung des Gießspiegelniveaus stattzufindenThe disadvantage of this device is that the filter slowly clogs up during the casting operation and the resistance in the pouring opening increases continuously. The slow clogging causes an increase in the pressure loss that the filter exerts. This increase must be compensated for by opening an additional control valve, which can be partially broken when the filter is completely free closed position is located This device also has to be used to regulate the level of the mold level
Das allmähliche Zusetzen des Filters bewirkt weiterhin eine Erhöhung der Filterwirkuπg, so daß bei völlig freiem Fiiter der Reinheitsgrad der Schmelze relativ schlecht ist, bei nahezu zugesetztem Filter der Reinheitsgrad der Schmelze aber relativ gut ist Ein über längere Gießzeit konstanter Reinheitsgrad der Schmelze ist somit nicht möglichThe gradual clogging of the filter further increases the filter efficiency, so that the degree of purity of the melt is relatively poor when the filter is completely free, but the degree of purity of the melt is relatively good when the filter is nearly added. A constant degree of purity of the melt is therefore not possible over a long casting time
Der Austausch eines Filters ist nur als Komplettbauteil vorgesehen Das Austauschen des Filterelementes ist mit einer Unterbrechung der Schmelzenzufuhr in die Kokille verbunden Je nach Dauer dieser Störung muß die Gießgeschwindigkeit deutlich reduziert werden, um den Gießbetπeb fortsetzen zu können Beim Wiederangießen kommt es zu starken Turbulenzen in der Kokille, was zu einer deutlichen Qualitatseinbuße des betroffenen Stranges fuhrtReplacing a filter is only intended as a complete component. Replacing the filter element is associated with an interruption in the melt supply into the mold. Depending on the duration of this fault, the casting speed must be reduced significantly in order to be able to continue the casting process Chill mold, which leads to a significant loss in quality of the strand concerned
Die Erfindung hat sich das Ziel gesetzt, eine Ausgießeinπchtung für metallurgische Gefäße zu schaffen, bei der das ausfließende Flussigmetall konstant bei gleichmäßigen Stromuπgsverhaltnissen im Tauchrohr gefiltert wirdThe invention has set itself the goal of creating a pouring device for metallurgical vessels, in which the outflowing liquid metal is constantly filtered with uniform flow conditions in the dip tube
Die Erfindung lost dieses Problem durch die kennzeichnenden Merkmale desThe invention solves this problem through the characteristic features of
Vorrichtungsanspruches 1 und des Verfahrensaπspruches 7 Die übrigen Ansprüche sind vorteilhafte Weiterbildungen der ErfindungDevice claim 1 and the procedural claim 7 The remaining claims are advantageous developments of the invention
Erfinduπgsgemaß wird das Tauchgießrohr durch eine Schieberplatte verschlossen, welche einen Filterteil aufweist, der quer zur Ausgießrichtung vorgebbar verschiebbar ist und den freien Durchtrittsquerschnitt im Tauchgießrohr konstant halt Hierzu wird die Durchflußmenge der durch das Tauchgießrohr abfließenden Schmelze erfaßt, die gleichzeitig ein Maß für das Zusetzen der Filteroffnungen darstellt, und die Schieberplatten werden in geeigneter Weise verschobenAccording to the invention, the immersion pouring tube is closed by a slide plate which has a filter part which can be displaced transversely to the pouring direction and which keeps the free passage cross section constant in the immersion pouring tube. For this purpose, the flow rate of the melt flowing through the immersion pouring tube is recorded, which at the same time is a measure of the clogging of the filter openings represents, and the slide plates are moved in a suitable manner
Hierzu werden Schieberplatten eingesetzt, die einen Filterteil besitzen, der in Gießrichtung angeordnete Offnungen aufweist, und mindestens einen vollwandigen Plattenteil aufweisen Weiterhin sind Aktuatoren vorgesehen, mit denen die Schieberplatten in Forderrichtung (x-Richtung), sowie zusatzlich in gleicher Ebene, aber senkrecht zu dieser (d h in y-Richtung) verschiebbar sind Diese Aktuatoren stehen über Regeleinrichtungen mit Meßelementen in Verbindung, mit denen der Durchfluß durch das Tauchgießrohr erfaßbar ist.For this purpose, slide plates are used, which have a filter part that has openings arranged in the casting direction and have at least one full-walled plate part. Furthermore, actuators are provided with which the slide plates in the direction of travel (x direction), and additionally in the same plane, but perpendicular to this These actuators can be moved (ie in the y direction) are connected via control devices with measuring elements with which the flow through the immersion pouring tube can be detected.
Durch die einzelnen Teile der Schieberplatten, dem Filterteil und dem vollwandigen Teil, läßt sich der freie Querschnitt während des Gießbetriebes beliebig vergrößern oder auch verkleinern.Due to the individual parts of the slide plates, the filter part and the full-walled part, the free cross-section can be enlarged or reduced during the casting operation.
Der Durchmesser der im Filterteil vorgesehenen Öffnungen hat eine Größe von d = 0,2 bis 1 mm. In einer vorteilhaften Ausgestaltung sind die Öffnungen schlitzförmig mit einem Längen-/Breitenverhältnis von l/b = 5/1 bis 8/1.The diameter of the openings provided in the filter part has a size of d = 0.2 to 1 mm. In an advantageous embodiment, the openings are slit-shaped with an aspect ratio of l / b = 5/1 to 8/1.
Die erfindungsgemäße Vorrichtung ermöglicht einen konstanten Betriebsablauf über beliebig lange Zeitabläufe, da die Filtersegmente ausgetauscht werden können, ohne den Betriebsablauf zu beeinflußen.The device according to the invention enables a constant operating sequence over any length of time, since the filter segments can be exchanged without influencing the operating sequence.
Eine zusätzliche Regelarmatur ist nicht erforderlich, da die Regelung des Gießniveaus in der Kokille über den Filter selbst erfolgt. Hierzu werden die Verschiebungsmöglichkeiten in x- und y Richtung ausgenutzt, oder die bereits zugesetzten Filterbohrungen werden als geschlossene Regelpiatte verwendet.An additional control valve is not necessary because the casting level in the mold is controlled by the filter itself. For this purpose, the displacement options in the x and y direction are used, or the filter holes already added are used as closed control plates.
Durch die gleichmäßig aus dem Filterteil der Schieberplatte abfließenden Schmelze ergeben sich in dem darunter befindlichen Strömungskanal sowie in der Kokille günstige Strömungsverhältnisse mit positivem Einfluß auf die Stahlqualität.As a result of the melt flowing out evenly from the filter part of the slide plate, favorable flow conditions with a positive influence on the steel quality result in the flow channel underneath and in the mold.
Ein Beispiel der Erfindung ist in der Figur 1 dargelegt.An example of the invention is shown in FIG. 1.
Die Figur 1 zeigt einen nicht näher dargestellten Verteiler 1 1 , der einen Verteilerausgußstein 12 mit einem Gießkanal 13 besitzt.FIG. 1 shows a distributor 11, not shown in detail, which has a distributor pouring stone 12 with a pouring channel 13.
Der Verteilerausgußstein 1 1 ist mit einer oberen Führungsplatte 21 und einer in derThe distributor pouring stone 11 is with an upper guide plate 21 and one in the
Figur nicht dargestellten unteren Führungsplatte 22 verbunden.Figure not shown lower guide plate 22 connected.
Zwischen der oberen Führungsplatte 21 und der unteren Führungsplatte 22 sind Schieberplatten 23 durchschiebbar. Die einzelnen Schieberplatten weisen in der vorliegenden Darstellung zwei voilwandige Plattenteile 24 auf, die zu beiden Seiten eines Filterteils 25 angeordnet sind. Im Filterteil 25 sind Öffnungen 27 vorgesehen, die im linken Teil der Figur noch vollständig offen sind und im rechten Teil der Figur als Filterteil 26 zumindestens teilweise zugesetzt sind.Slide plates 23 can be pushed between the upper guide plate 21 and the lower guide plate 22. In the present illustration, the individual slide plates have two full-walled plate parts 24, which are arranged on both sides of a filter part 25. Openings 27 are provided in the filter part 25, which are still completely open in the left part of the figure and are at least partially added as a filter part 26 in the right part of the figure.
Die Schieberplatteπ 23 sind mit Aktuatoren 31 in Förderrichtuπg (x- Richtung) wirkend und Aktuatoren 32 quer zur Förderrichtung ( d.h. in y- Richtung) wirkend verbunden. Die Aktuatoren 31 und 32 stehen mit einer Regeleinrichtung 33 in Verbindung, welche mit Meßelementen 34 zur Durchflußmengenerfassung und mit Meßelementen 35 zurThe slide plate 23 are connected to actuators 31 acting in the conveying direction (x direction) and actuators 32 acting transversely to the conveying direction (i.e. in the y direction). The actuators 31 and 32 are connected to a control device 33, which with measuring elements 34 for flow rate detection and with measuring elements 35 for
Höheπstandsmessung verbunden sind.Height measurement are connected.
Der Verteilerausgußstein 12 besitzt einen Gießkanal 13, welcher sich unterhalb der Schieberplatten als Tauchgießrohr 28 fortsetzt, welches in eine nicht weiter dargestellten Kokille 41 hineinragt.The distributor pouring stone 12 has a pouring channel 13 which continues below the slide plates as an immersion pouring tube 28, which projects into a mold 41 (not shown).
Durch die beiden Aktuatoren 31 und 32 lassen sich - wie angegeben - die Schieberplatteπ 23 verschieben. Zu Beginn eines Gießvorganges kann sich beispielsweise unter dem Gießrohr ein Teilbereich des Filterteiles- 26 und ein Teilbereich des vollwandigen Plattenteils 24 befinden. Wenn sich nun im Laufe desBy means of the two actuators 31 and 32, the slide plate 23 can be moved, as indicated. At the beginning of a casting process, for example, a partial area of the filter part 26 and a partial area of the full-walled plate part 24 can be located under the pouring tube. If now in the course of
Abgießens das Filterteil langsam zusetzt, dann wird der Aktuator 32 betätigt. Dieser verschiebt dann die Schieberplatten 23 in y- Richtung derart, daß mehr Filterfläche freigegeben wird, d.h. der Teilbereich des vollwandigen Plattenteiles 24 unter dem Gießrohr wird verringert. Ist der gesamte Filter zugesetzt, so werden durch die Aktuatoren die Schieberplatten in der x- und der y- Richtung verschoben, bis wieder der vorbeschriebene Anfangszustand hergestellt ist oder eine andere gewünschte Stellung eingestellt worden ist. Es ist ersichtlich, daß selbstverständlich auch ein vollständiges Verschließen der Austrittsöffnung des Gießrohres auf diese Weise möglich ist. PositionslistePouring the filter part slowly clogs, then the actuator 32 is actuated. This then moves the slide plates 23 in the y direction in such a way that more filter surface is released, ie the partial area of the full-walled plate part 24 under the pouring tube is reduced. If the entire filter is clogged, the slide plates are moved in the x and y directions by the actuators until the above-described initial state is restored or another desired position has been set. It can be seen that it is of course also possible to completely close the outlet opening of the pouring tube in this way. Position list
Zufuhrsupply
1 1 Verteiler 12 Verteilerausgußstein1 1 distributor 12 distributor pouring stone
13 Gießkanal (12)13 pouring channel (12)
MontageeinheitAssembly unit
21 Obere Führungsplatte 22 Untere Führungsplatte21 Upper guide plate 22 Lower guide plate
23 Schieberplatte23 slide plate
24 Vollwandiger Plattenteil24 Full-walled plate part
25 Filterteil neu25 filter part new
26 Filterteil zugesetzt 27 Öffnung26 Filter part clogged 27 opening
28 Tauchgießrohr28 immersion pouring tube
Meß- und RegeleinrichtungMeasuring and control device
31 Aktuator in Förderrichtung (x-Richtung) wirkend 32 Aktuator senkrecht zur Förderrichtung (d.h. in y- Richtung) wirkend31 Actuator acting in the conveying direction (x-direction) 32 Actuator acting perpendicular to the conveying direction (i.e. in the y-direction)
33 Regeleinrichtung33 control device
34 Durchflußmeßelement34 flow measuring element
35 Höhenstandsanzeiger35 level indicators
AbfuhrDischarge
41 Kokille d Durchmesser der Filteröffnung I Länge Filteröffnung Langloch b Breite Filteröffnung Laπgloch 41 mold d diameter of the filter opening I length of filter opening elongated hole b width of filter opening Laπgloch

Claims

Patentansprüchft Claimed
1. Ausgießeinrichtung für metallurgische Gefäße, insbesondere für Stahlschmelzen, mit in Reihe hintereinander unter eine Gefäßöffnung stellbare und wieder ausschiebbare Schieberplatten, in die Filter einbringbar sind, und einem in eine1. Pouring device for metallurgical vessels, in particular for steel melts, with slide plates which can be inserted in series one behind the other and pushed out again, into which filters can be inserted, and one into one
Kokille hineinragenden Tauchrohr, dadurch gekennzeichnet, daß die Schieberplatten (23) einen mit in Gießrichtung angeordneten Öffnungen (27) versehenen Filterteil (25) und mindestens einen vollwandigen Plattenteil (24) aufweisen, und daß Aktuatoren (31 , 32) vorgesehen sind, mit denen die Schieberplatten (23) in Förderrichtung (x- Richtung) sowie zusätzlich in gleicher Ebene, aber senkrecht zur Förderrichtung (d.h. in y-Richtung) verschiebbar sind.Immersion tube protruding into the mold, characterized in that the slide plates (23) have a filter part (25) provided with openings (27) arranged in the casting direction and at least one full-walled plate part (24), and in that actuators (31, 32) are provided with which the slide plates (23) can be moved in the conveying direction (x direction) and additionally in the same plane, but perpendicular to the conveying direction (ie in the y direction).
2. Ausgießeinrichtung nach Anspruch 1 , dadurch gekennzeichnet, daß die Aktuatoren (31 , 32) über eine Regeleinrichtung (33) mit Meßelementen2. Pouring device according to claim 1, characterized in that the actuators (31, 32) via a control device (33) with measuring elements
(34) verbunden sind, mit denen der Durchfluß durch das Tauchgießrohr (28) erfaßbar ist.(34) are connected, with which the flow through the immersion pouring tube (28) can be detected.
3. Ausgießeinrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Aktuatoren (31 , 32) über eine Regeleinrichtung (33) mit Meßelementen3. Pouring device according to claim 2, characterized in that the actuators (31, 32) via a control device (33) with measuring elements
(35) verbunden sind, die den Pegel der Schmelze in der dem Tauchgießrohr (28) nachgeordneten Kokille (41) anzeigt.(35) are connected, which indicates the level of the melt in the mold (41) arranged downstream of the immersion pouring tube (28).
4. Ausgießeinrichtung nach Anspruch 1 , dadurch gekennzeichnet, daß die Fläche (F) des Filterteils (25) im Vergleich zur Fläche (P) des vollwandigen Plattenteils (24) sich fiächenmäßig verhält wie F/P = 0,3 bis 0,7.4. Pouring device according to claim 1, characterized in that the surface (F) of the filter part (25) compared to the surface (P) of the full-walled plate part (24) behaves in terms of area as F / P = 0.3 to 0.7.
5. Ausgießeinrichtung nach Anspruch 4, dadurch gekennzeichnet, daß der Filterteil (25) Öffnungen (27) aufweist, mit einem Durchmesser (d) mit einer Größe von d = 0,2 bis 1 ,0 mm. 5. Pouring device according to claim 4, characterized in that the filter part (25) has openings (27) with a diameter (d) with a size of d = 0.2 to 1.0 mm.
6. Ausgießeinrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die Öffnungen (27) schlitzförmig ausgestaltet sind mit einem Längen/Breitenverhältnis von l/b = 5/1 bis 8/1.6. Pouring device according to claim 4, characterized in that the openings (27) are slit-shaped with a length / width ratio of l / b = 5/1 to 8/1.
7. Verfahren zur Steuerung der Abflußmenge einer Schmelze, insbesondere einer Stahlschmelze, die aus einem metallurgischen Gefäß über ein Tauchrohr abfließt, welches mit Schieberplatten entsprechend Anspruch 1 absperrbar ist, gekennzeichnet durch folgende Schritte:7. Method for controlling the flow rate of a melt, in particular a steel melt, which flows out of a metallurgical vessel via an immersion tube, which can be shut off with slide plates according to claim 1, characterized by the following steps:
- die durch das Tauchgießrohr abfließende Schmelze wird durch einen Filter geführt- The melt flowing through the immersion pouring tube is passed through a filter
- gleichzeitig wird die Durchflußmenge der durch das Tauchgießrohr abfließenden Schmelze erfaßt und - der freie Querschnitt des Filters wird in der Weise eingestellt, daß die- At the same time the flow rate of the melt flowing through the immersion pouring tube is detected and - The free cross section of the filter is set in such a way that the
Durchflußmenge der Schmelze konstant bleibt.Flow rate of the melt remains constant.
8. Verfahren nach Anspruch 7, dadurch gekennzeichnet, daß der Filter einen Teil einer ebenfalls voilwandige Plattenteile aufweisende8. The method according to claim 7, characterized in that the filter has a part of a likewise voilwandige plate parts
Schieberplatte darstellt, und erst dann in Förderrichtung (x-Richtung) verschoben wird, wenn die volle Breite des Filterteiis der Schieberpl.ai.te senkrecht zur Förderrichtung ausgenutzt wurde. Represents slide plate, and is only shifted in the conveying direction (x-direction) when the full width of the filter part of the slide plate has been used perpendicular to the conveying direction.
EP98958803A 1997-11-17 1998-09-25 Pouring device for metallurgic vessels and a method for controlling the quantity of discharge Expired - Lifetime EP1032481B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19753026 1997-11-17
DE19753026A DE19753026C1 (en) 1997-11-17 1997-11-17 Outlet unit for metallurgical vessels
PCT/DE1998/002931 WO1999025513A1 (en) 1997-11-17 1998-09-25 Pouring device for metallurgic vessels and a method for controlling the quantity of discharge

Publications (2)

Publication Number Publication Date
EP1032481A1 true EP1032481A1 (en) 2000-09-06
EP1032481B1 EP1032481B1 (en) 2001-11-07

Family

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EP98958803A Expired - Lifetime EP1032481B1 (en) 1997-11-17 1998-09-25 Pouring device for metallurgic vessels and a method for controlling the quantity of discharge

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Country Link
US (1) US6485673B1 (en)
EP (1) EP1032481B1 (en)
JP (1) JP2001523578A (en)
KR (1) KR20010031718A (en)
AT (1) ATE208240T1 (en)
AU (1) AU1481799A (en)
DE (2) DE19753026C1 (en)
ES (1) ES2163302T3 (en)
WO (1) WO1999025513A1 (en)

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JPS5182664A (en) * 1974-12-27 1976-07-20 Kurosaki Refractories Co
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DE4012093C1 (en) * 1990-04-14 1991-07-04 Didier-Werke Ag, 6200 Wiesbaden, De
JPH05318062A (en) * 1992-05-13 1993-12-03 Sumitomo Metal Ind Ltd Inclusion removing member and device for continuous casting

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
DE102016106708A1 (en) * 2016-04-12 2017-10-12 Technische Universität Bergakademie Freiberg Ceramic filters and filter systems for continuous molten metal filtration
DE102016106708B4 (en) 2016-04-12 2019-06-13 Technische Universität Bergakademie Freiberg Continuous casting process with ceramic filters or filter systems

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KR20010031718A (en) 2001-04-16
ES2163302T3 (en) 2002-01-16
EP1032481B1 (en) 2001-11-07
DE59802098D1 (en) 2001-12-13
WO1999025513A1 (en) 1999-05-27
AU1481799A (en) 1999-06-07
JP2001523578A (en) 2001-11-27
US6485673B1 (en) 2002-11-26
ATE208240T1 (en) 2001-11-15
DE19753026C1 (en) 1998-12-10

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