EP0963265A1 - Vessel for metallurgical purposes - Google Patents

Vessel for metallurgical purposes

Info

Publication number
EP0963265A1
EP0963265A1 EP98909339A EP98909339A EP0963265A1 EP 0963265 A1 EP0963265 A1 EP 0963265A1 EP 98909339 A EP98909339 A EP 98909339A EP 98909339 A EP98909339 A EP 98909339A EP 0963265 A1 EP0963265 A1 EP 0963265A1
Authority
EP
European Patent Office
Prior art keywords
shield segment
vessel
vessel according
stiffening ring
stiffening
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
EP98909339A
Other languages
German (de)
French (fr)
Other versions
EP0963265B1 (en
Inventor
Hans-Werner Gohres
Franz-Josef Divjak
Detlef Kristinat
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.)
Vodafone GmbH
Original Assignee
Mannesmann 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 Mannesmann AG filed Critical Mannesmann AG
Publication of EP0963265A1 publication Critical patent/EP0963265A1/en
Application granted granted Critical
Publication of EP0963265B1 publication Critical patent/EP0963265B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B22D41/04—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like tiltable

Definitions

  • the invention relates to a vessel for metallurgical purposes for the transport of molten metals according to the preamble of claim 1.
  • Such vessels are used not only for the transport of molten metals such.
  • vacuum treatment has become increasingly important.
  • the thermal load on the treatment vessel is particularly high, since it is high due to the method
  • a vessel for metallurgical purposes has been proposed (DE 195 38 530 C1), in which, in contrast to the conventional design, the stiffening rings are not welded on the outside of the outer surface, but are integrated in the metal shell. Furthermore, the plate supporting the vessel support pin is at a short distance from the metal jacket and the upper and lower rim-like edge region of the plate is connected to the adjacent stiffening rings, the vessel support pin attached to the plate only extending outward.
  • the stiffening ring closer to the bottom has a thickness which is up to a factor of 4 and the second stiffening ring which is further away from the bottom has a thickness which is up to a factor of 6 greater than that of the subsequent one Metal shell, wherein the axial extent of the first stiffening ring is equal to or greater than that of the second.
  • the edge of the vessel is connected to a lid cap, which preferably has a frustoconical cross-section. To stiffen this area, an additional stiffening ring is provided on the edge of the vessel.
  • This well-known vessel is evenly stressed when combined with load and heat and can withstand an intrinsic temperature of up to 400 ° C.
  • a disadvantage of this construction is that the welded connections between the stiffening rings and the plate are exposed to high loads and the transition from the stiffening ring to the plate is unfavorable in terms of force.
  • the object of the invention is to improve the construction based on the known vessel so that the disadvantages described are avoided and the manufacture of the vessel is simplified.
  • the essential modification according to the invention of the known construction relates to the formation of the stiffening rings in the area of the plate designed as a shield segment.
  • Both stiffening rings have a nose-shaped continuation, which is directed upwards and downwards.
  • the shield segment is welded in between the two continuations.
  • the connecting weld seams are thus placed in a zone with less stress, so that the fatigue strength of this area is increased.
  • the transition from the stiffening ring to the shield segment is greatly rounded, this rounding continuing in the shield segment. This type of training improves the flow of lines of force, so that there is an almost isotonic design.
  • the special shape and position of the two stiffening rings in connection with the shield segment makes it possible to dispense with the stiffening ring, which is otherwise usual on the edge of the vessel. Even in the case of vessels without a ring lid, the vessel in the upper edge area is stiff enough so that the arrangement of an edge angle is sufficient.
  • Another feature relates to the type of connection of the vessel support pin with the shield segment.
  • the trunnion is not welded onto a plate, but welded into a hole in the shield segment.
  • the welded-in area of the vessel support pin is designed as a flange with a larger diameter.
  • the jacket of the flange is made roof-like, so that welding can only be carried out from one side, then the root is turned out and finally the opposite side is welded from the other side.
  • stiffening rings are composed of segments. This applies in particular to vessels with an oval cross section.
  • the individual segments of the stiffening rings then have a different radius, which simplifies the production of the stiffening rings, especially since in this way the area with the nose-shaped design is formed
  • the advantage of the vessel according to the invention can be seen in the fact that, on the one hand, no inadmissible deformations occur even at high inherent temperatures and the stress in the material of the vessel is evenly distributed.
  • One consequence of this is that the geometry of the vessel does not change under high weight and temperature loads. This can be seen in particular from the fact that the trunnions remain horizontal.
  • the production is simplified since the stiffening ring, which is otherwise customary on the edge of the vessel, can be dispensed with.
  • Figure 1 is a view of a vessel designed according to the invention
  • FIG. 2 shows a section along the line B-B in FIG. 1
  • FIG. 3 shows a section along the line AA in FIG. 1 Figure 4 on an enlarged scale the formation of the trunnion including the connection to the shield segment Figure 5 on an enlarged scale of the trunnion
  • Figure 1 shows a view of a metallurgical constructed according to the invention
  • the steel ladle 1 consists of a metal jacket and a pan base 2.
  • the metal jacket is divided into three pipe sections 3 - 5 of different widths. Depending on the pan height and design, the number of pipe sections can be smaller or larger. Between the pipe sections 3 - 5, two stiffening rings 6, 7 are integrated in the metal jacket.
  • the uppermost vessel edge 8 is connected to a cover attachment designed as a ring cover 9.
  • This ring cover 9 preferably has a frustoconical cross section.
  • a tilting linkage 10 is attached to the outside on the left here in order to be able to tilt the steel ladle 1 by means of a crane, not shown here.
  • FIG. 2 shows a section in the direction BB in Figure 1, the special cross-sectional shape of the steel ladle shown here.
  • the cross-sectional shape is elliptical, the area of the middle pipe section 4 behind the respective shield segment 16, 16 'having a very large radius R for structural reasons.
  • FIG. 3 shows the same steel ladle 1 according to FIG. 1 in a section in the direction AA in FIG. 1. In this representation, the individual elements of the steel ladle 1 can be seen better.
  • the feet are designated with 13, 13 '.
  • the part of the steel ladle 1 designed according to the invention is shown on an enlarged scale in FIG.
  • One essential aspect relates to the nose-shaped continuation 17, 18 of the respective stiffening ring 6, 7, which extends upwards for the stiffening ring 6 closer to the pan base 2 and downwards for the stiffening ring 7 further away from the pan bottom 2.
  • the transition from the respective one to be seen in the longitudinal section Continuation 17, 18 in the actual stiffening ring 6, 7 is provided with a corresponding radius 19, 20.
  • the second aspect relates to the rounding 23, 24 of the respective extension 17, 18 lying in the view, which continues continuously into a corresponding rounding 25, 26 of the shield segment 16 (see FIG. 1).
  • the third aspect relates to the welding of the respective trunnion 1 1, 1 1 'into a bore 27 of the respective shield segment 16, 16'.
  • Steel casting ladle 1 facing end region of the support pin 11 ' is designed as a larger diameter flange 28.
  • the jacket 29 of the flange 28 has a roof-like contour. This makes it possible to first provide a weld seam on one side, then unscrew the root of this first weld seam and then weld the opposite side from the other side.
  • the support pin 11 ' is provided with a bearing shell 30.
  • the lateral support for the loop 12 ' forms a scraper plate 31, which is fixed by means of a holding plate 32 fastened to the end face of the trunnion 11'. The attachment takes place in this embodiment
  • the middle pipe section 4 of the metal jacket is provided with a small bore 34 (FIG. 4), which is aligned with a larger longitudinal bore 35 arranged in the respective trunnion 1 1, 1 1 ', in this longitudinal bore 35 a measuring device can be inserted to check the alignment of the two opposite trunnions 11, 1 1 '. After the measurement, the bore 34 in the metal jacket is closed again.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Prostheses (AREA)
  • Liquid Crystal Substances (AREA)

Abstract

The invention relates to a vessel for metallurgical purposes to transport molten metals, comprising a metal jacket consisting of individual tubular sections with a heat-resistant lining. Said jacket has two peripheral integrated axially-spaced reinforcing rings and two supporting journals which are placed opposite each other on the outside of said jacket, both journals being supported by a plate that is connected to the reinforcing rings. Optionally, a lid with a conical section is fastened to the rim of the vessel. The first reinforcing ring (6) that lies closest to the bottom (2) has a lug-shaped extension (17) directed upwards in the area of the plate which is configured as a shield segment (16, 16'). The second reinforcing ring (7) that lies furthest from the bottom (2) has a lug-shaped extension (18) directed downwards in the area of the shield segment (16, 16') and the shield segment is welded between the extensions (17, 18). The transition between each respective extension (17, 18) and the respective reinforcing ring (6, 7) is rounded off both in the longitudinal section and when seen from the top. Said round-offs (23, 24) fit into corresponding round-offs (25, 26) in the shield segment (16, 16') without buckling.

Description

Gefäß für metallurgische Zwecke Vessel for metallurgical purposes
Beschreibungdescription
Die Erfindung betrifft ein Gefäß für metallurgische Zwecke zum Transport von schmelzflüssigen Metallen gemäß dem Oberbegriff des Patentanspruches 1.The invention relates to a vessel for metallurgical purposes for the transport of molten metals according to the preamble of claim 1.
Derartige Gefäße dienen nicht nur dem Transport von schmelzflüssigeπ Metallen wie z. B. Roheisen vom Hochofen zum Roheisenmischer oder vom Roheisenmischer zum Konverter, sondern können auch ein metallurgisches Behandlungsgefäß sein. Insbesondere hat im Zuge der Erhöhung der Anforderung an den Reinheitsgrad und der Absenkung der Gehalte an gelösten Gasen die Vakuumbehandlung stetig an Bedeutung gewonnen. Bei diesem Verfahren ist die thermische Belastung für das Behandlungsgefäß besonders hoch, da verfahrensbedingt mit einer hohenSuch vessels are used not only for the transport of molten metals such. B. pig iron from the blast furnace to the pig iron mixer or from the pig iron mixer to the converter, but can also be a metallurgical treatment vessel. In particular, in the course of increasing the requirement for the degree of purity and lowering the content of dissolved gases, vacuum treatment has become increasingly important. In this method, the thermal load on the treatment vessel is particularly high, since it is high due to the method
Überhitzungstemperatur gefahren wird.Overheating temperature is driven.
Zur Lösung dieses Problems wurde ein Gefäß für metallurgische Zwecke vorgeschlagen (DE 195 38 530 C1 ), bei dem im Unterschied zur konventionellen Bauweise die Versteifungsringe nicht außen auf der Mantelfläche aufgeschweißt, sondern im Metallmantel integriert sind. Weiterhin weist die den Gefäßtragzapfen abstützende Platte einen geringen Abstand zum Metallmaπtel auf und der obere und untere krempenartig ausgebildete Randbereich der Platte ist mit den benachbart liegenden Versteifungsringen verbunden, wobei der an der Platte befestigte Gefäßtragzapfen sich nur nach außen erstreckt. Was die Dicke der Versteifungsringe betrifft, so weist der dem Boden näher liegende Versteifungsring eine Dicke auf, die bis um den Faktor 4 und der vom Boden weiter entfernt liegende zweite Versteifungsring eine Dicke auf, die bis um den Faktor 6 größer ist als die des anschließenden Metallmantels, wobei die axiale Erstreckung des erstgenannten Versteifungsringes gleich oder größer ist als die des zweiten. Im Falle, daß das Gefäß als Stahlgießpfanne verwendet wird, ist der Gefäßrand mit einem Deckelaufsatz verbunden, der vorzugsweise einen kegelstumpfartigen Querschnitt aufweist. Zur Versteifung dieses Bereiches ist die Anordnung eines weiteren Versteifungsringes am Gefäßrand vorgesehen.To solve this problem, a vessel for metallurgical purposes has been proposed (DE 195 38 530 C1), in which, in contrast to the conventional design, the stiffening rings are not welded on the outside of the outer surface, but are integrated in the metal shell. Furthermore, the plate supporting the vessel support pin is at a short distance from the metal jacket and the upper and lower rim-like edge region of the plate is connected to the adjacent stiffening rings, the vessel support pin attached to the plate only extending outward. As far as the thickness of the stiffening rings is concerned, the stiffening ring closer to the bottom has a thickness which is up to a factor of 4 and the second stiffening ring which is further away from the bottom has a thickness which is up to a factor of 6 greater than that of the subsequent one Metal shell, wherein the axial extent of the first stiffening ring is equal to or greater than that of the second. In the event that the vessel is used as a steel ladle, the edge of the vessel is connected to a lid cap, which preferably has a frustoconical cross-section. To stiffen this area, an additional stiffening ring is provided on the edge of the vessel.
Dieses bekannte Gefäß wird bei kombinierter Belastung von Last und Wärme gleichmäßig beansprucht und es kann einer Eigentemperatur bis zu 400 °C widerstehen. Nachteilig bei dieser Konstruktion ist, daß die Schweißverbindungen zwischen den Versteifungsringen und der Platte großen Belastungen ausgesetzt sind und der Übergang vom Versteifungsring zur Platte kraftlinienmäßig ungünstig ist.This well-known vessel is evenly stressed when combined with load and heat and can withstand an intrinsic temperature of up to 400 ° C. A disadvantage of this construction is that the welded connections between the stiffening rings and the plate are exposed to high loads and the transition from the stiffening ring to the plate is unfavorable in terms of force.
Aufgabe der Erfindung ist es, ausgehend von dem bekannten Gefäß die Konstruktion so zu verbessern, daß die geschilderten Nachteile vermieden werden und die Herstellung des Gefäßes vereinfacht wird.The object of the invention is to improve the construction based on the known vessel so that the disadvantages described are avoided and the manufacture of the vessel is simplified.
Diese Aufgabe wird mit den im kennzeichnenden Teil des Patentanspruches 1 angegebenen Merkmalen gelöst. Vorteilhafte Weiterbildungen sind Bestandteil von Unteransprüchen.This object is achieved with the features specified in the characterizing part of patent claim 1. Advantageous further developments are part of subclaims.
Die wesentliche erfindungsgemäße Abänderung der an sich bekannten Konstruktion betrifft die Ausbildung der Versteifungsringe im Bereich der als Schildsegment ausgebildeten Platte. Beide Versteifungsringe weisen eine nasenförmige Fortführung auf, die zum einen nach oben und zum anderen nach unten gerichtet ist. Das Schildsegment ist zwischen den beiden Fortführungen eingeschweißt. Damit werden die Verbindungsschweißnähte in eine Zone mit geringerer Belastung gelegt, so daß die Dauerfestigkeit dieses Bereiches erhöht wird. Zum anderen ist der Übergang vom Versteifungsring zum Schildsegment stark abgerundet, wobei diese Abrundung sich im Schildsegment fortsetzt. Diese Art der Ausbildung verbessert den Kraftlinienfluß, so daß sich eine nahezu isotensische Ausführung ergibt. Die besondere Form und Lage der beiden Versteifungsringe in Verbindung mit dem Schildsegment macht es möglich auf den ansonsten üblichen am Gefäßrand angeordneten Versteifungsring zu verzichten. Auch bei Gefäßen ohne Ringdeckel ist das Gefäß im oberen Randbereich steif genug, so daß die Anordnung eines Randwinkels aursreichend ist. Ein weiteres Merkmal betrifft die Art der Verbindung des Gefäßtragzapfens mit dem Schildsegment. Im Unterschied zum bekannten Stand der Technik wird der Tragzapfen nicht auf eine Platte aufgeschweißt, sondern in eine Bohrung des Schildsegmentes eingeschweißt. Um auch diese Schweißnähte zu entlasten, wird der Einschweißbereich des Gefäßtragzapfeπs als ein einen größeren Durchmesser aufweisender Flansch ausgebildet. Zur Verbesserung der Schweißnahtgüte wird der Mantel des Flansches dachartig ausgebildet, so daß erst von einer Seite eingeschweißt werden kann, danach die Wurzel ausgedreht wird und abschließend die Gegenlage von der anderen Seite her geschweißt wird.The essential modification according to the invention of the known construction relates to the formation of the stiffening rings in the area of the plate designed as a shield segment. Both stiffening rings have a nose-shaped continuation, which is directed upwards and downwards. The shield segment is welded in between the two continuations. The connecting weld seams are thus placed in a zone with less stress, so that the fatigue strength of this area is increased. On the other hand, the transition from the stiffening ring to the shield segment is greatly rounded, this rounding continuing in the shield segment. This type of training improves the flow of lines of force, so that there is an almost isotonic design. The special shape and position of the two stiffening rings in connection with the shield segment makes it possible to dispense with the stiffening ring, which is otherwise usual on the edge of the vessel. Even in the case of vessels without a ring lid, the vessel in the upper edge area is stiff enough so that the arrangement of an edge angle is sufficient. Another feature relates to the type of connection of the vessel support pin with the shield segment. In contrast to the known prior art, the trunnion is not welded onto a plate, but welded into a hole in the shield segment. In order to relieve these weld seams as well, the welded-in area of the vessel support pin is designed as a flange with a larger diameter. To improve the quality of the weld seam, the jacket of the flange is made roof-like, so that welding can only be carried out from one side, then the root is turned out and finally the opposite side is welded from the other side.
Als vorteilhaft hat sich ebenfalls herausgestellt, wenn die Versteifungsriπge aus Segmenten sich zusammensetzen. Dies gilt insbesondere für Gefäße mit einem ovalen Querschnitt. Die einzelnen Segmente der Versteifungsringe weisen dann einen unterschiedlichen Radius auf, was die Herstellung der Versteifungsringe vereinfacht, zumal man auf diese Weise den Bereich mit der nasenförmig ausgebildetenIt has also proven to be advantageous if the stiffening rings are composed of segments. This applies in particular to vessels with an oval cross section. The individual segments of the stiffening rings then have a different radius, which simplifies the production of the stiffening rings, especially since in this way the area with the nose-shaped design is formed
Fortführung separat herstellen kann. Um ein optimales Füllvolumen für das Gefäß zu erreichen, ist es vorteilhaft, die einzelnen Rohrschüsse im Längsschnitt gesehen zylindrisch auszubilden.Continuation can produce separately. In order to achieve an optimal filling volume for the vessel, it is advantageous to design the individual pipe sections as cylindrical, seen in longitudinal section.
Der Vorteil des erfindungsgemäßen Gefäßes ist darin zu sehen, daß zum einen auch unter hohen Eigentemperaturen keine unzulässigen Verformungen auftreten und die Spannung im Material des Gefäßes gleichmäßig verteilt sind. Eine Folge davon ist auch eine unter hoher Gewichts- und Temperaturbelastung sich nicht verändernde Geometrie des Gefäßes. Dies ist insbesondere daran zu erkennen, daß die Tragzapfen waagerecht verbleiben. Weiterhin ist die Herstellung vereinfacht, da auf den ansonsten üblichen am Gefäßrand angeordneten Versteifungsring verzichtet werden kann.The advantage of the vessel according to the invention can be seen in the fact that, on the one hand, no inadmissible deformations occur even at high inherent temperatures and the stress in the material of the vessel is evenly distributed. One consequence of this is that the geometry of the vessel does not change under high weight and temperature loads. This can be seen in particular from the fact that the trunnions remain horizontal. Furthermore, the production is simplified since the stiffening ring, which is otherwise customary on the edge of the vessel, can be dispensed with.
In der Zeichnung wird anhand eines Ausführungsbeispiels das erfindungsgemäß ausgebildete Gefäß für metallurgische Zwecke näher erläutert. Es zeigen:In the drawing, the vessel designed according to the invention for metallurgical purposes is explained in more detail using an exemplary embodiment. Show it:
Figur 1 eine Ansicht eines erfindungsgemäß ausgebildeten GefäßesFigure 1 is a view of a vessel designed according to the invention
Figur 2 einen Schnitt entlang der Linie B-B in Figur 1FIG. 2 shows a section along the line B-B in FIG. 1
Figur 3 einen Schnitt entlang der Linie A-A in Figur 1 Figur 4 im vergrößerten Maßstab die Ausbildung des Tragzapfens einschließlich der Verbindung mit dem Schildsegment Figur 5 im vergrößerten Maßstab der TragzapfenFIG. 3 shows a section along the line AA in FIG. 1 Figure 4 on an enlarged scale the formation of the trunnion including the connection to the shield segment Figure 5 on an enlarged scale of the trunnion
Figur 1 zeigt in einer Ansicht ein erfindungsgemäß konstruiertes metallurgischesFigure 1 shows a view of a metallurgical constructed according to the invention
Gefäß, das hier beispielsweise als Stahlgießpfanne 1 ausgebildet ist. Die Stahlgießpfanne 1 besteht aus einem Metallmantel und einem Pfannenboden 2. Der Metallmantel ist in diesem Ausführungsbeispiel in drei unterschiedlich breite Rohrschüsse 3 - 5 aufgeteilt. Je nach Pfannenhöhe und Ausgestaltung kann die Anzahl der Rohrschüsse geringer oder größer sein. Zwischen den Rohrschüssen 3 - 5 sind im Metallmantel zwei Versteifungsringe 6, 7 integriert. Bei diesem Ausführungsbeispiel ist der oberste Gefäßrand 8 mit einem als Ringdeckel 9 ausgebildeten Deckelaufsatz verbunden. Vorzugsweise weist dieser Ringdeckel 9 einen kegelstumpfartigen Querschnitt auf. An der hier links liegenden Außenseite ist ein Kippgestänge 10 angebracht, um die Stahlgießpfanne 1 mittels eines hier nicht dargestellten Kranes kippen zu können.Vessel, which is designed here, for example, as a steel ladle 1. The steel ladle 1 consists of a metal jacket and a pan base 2. In this exemplary embodiment, the metal jacket is divided into three pipe sections 3 - 5 of different widths. Depending on the pan height and design, the number of pipe sections can be smaller or larger. Between the pipe sections 3 - 5, two stiffening rings 6, 7 are integrated in the metal jacket. In this exemplary embodiment, the uppermost vessel edge 8 is connected to a cover attachment designed as a ring cover 9. This ring cover 9 preferably has a frustoconical cross section. A tilting linkage 10 is attached to the outside on the left here in order to be able to tilt the steel ladle 1 by means of a crane, not shown here.
Figur 2 zeigt in einem Schnitt in Richtung B-B in Figur 1 die besondere Querschnittsform der hier dargestellten Stahlgießpfanne Die Querschnittsform ist elliptisch, wobei der hinter dem jeweiligen Schildsegment 16,16' liegende Bereich des mittleren Rohrschusses 4 aus statischen Gründen einen sehr großen Kreisradius R aufweist. Bei einer solchen Konfiguration ist es vorteilhaft die Versteifungsringe 6,7 aus Segmenten zusammenzusetzen, wobei die einzelnen Segmente unterschiedliche Radien r, R aufweisen. In Figur 3 ist in einem Schnitt in Richtung A-A in Fig. 1 die gleiche Stahlgießpfanne 1 gemäß Figur 1 dargestellt. In dieser Darstellung kann man besser die Einzelelemente der Stahlgießpfanne 1 erkennen. Dazu gehören die besondere Ausbildung der Versteifungsringe 6, 7 sowie das Einschweißen des jeweiligen Tragzapfens 11 ,11' in das jeweilige Schildsegment 16, 16'. Mit 13,13' sind die Füße bezeichnet. Der erfindungsgemäß ausgebildete Teil der Stahlgießpfanne 1 ist in einem vergrößerten Maßstab in Figur 4 wiedergegeben. Der eine wesentliche Aspekt betrifft die nasenförmige Fortführung 17, 18 des jeweiligen Versteifungsringes 6, 7, die sich für den dem Pfannenboden 2 näher liegenden Versteifungsring 6 nach oben und für den weiter vom Pfannenboden 2 entfernt liegenden Versteifungsring 7 nach unten erstreckt. Der im Längsschnitt zu erkennende Übergang von der jeweiligen Fortführung 17, 18 in den eigentlichen Versteifungsring 6, 7 ist mit einem entsprechenden Radius 19, 20 versehen. Durch diese Art der Ausbildung der Versteifungsringe 6, 7 im Bereich des jeweiligen Schildsegmentes 16, 16' konnten die Verbindungsschweißnähte 21 , 22 in eine Zone mit niedrigerer Belastung gelegt werden. Der zweite Aspekt betrifft die in der Ansicht liegende Abrundung 23, 24 der jeweiligen Fortführung 17, 18, die kontinuierlich in eine entsprechende Abrundung 25, 26 des Schildsegmentes 16 sich fortsetzt (siehe Figur 1 ).Figure 2 shows a section in the direction BB in Figure 1, the special cross-sectional shape of the steel ladle shown here. The cross-sectional shape is elliptical, the area of the middle pipe section 4 behind the respective shield segment 16, 16 'having a very large radius R for structural reasons. With such a configuration, it is advantageous to assemble the stiffening rings 6, 7 from segments, the individual segments having different radii r, R. FIG. 3 shows the same steel ladle 1 according to FIG. 1 in a section in the direction AA in FIG. 1. In this representation, the individual elements of the steel ladle 1 can be seen better. This includes the special design of the stiffening rings 6, 7 and the welding of the respective trunnion 11, 11 'into the respective shield segment 16, 16'. The feet are designated with 13, 13 '. The part of the steel ladle 1 designed according to the invention is shown on an enlarged scale in FIG. One essential aspect relates to the nose-shaped continuation 17, 18 of the respective stiffening ring 6, 7, which extends upwards for the stiffening ring 6 closer to the pan base 2 and downwards for the stiffening ring 7 further away from the pan bottom 2. The transition from the respective one to be seen in the longitudinal section Continuation 17, 18 in the actual stiffening ring 6, 7 is provided with a corresponding radius 19, 20. This type of design of the stiffening rings 6, 7 in the area of the respective shield segment 16, 16 'made it possible to place the connecting weld seams 21, 22 in a zone with a lower load. The second aspect relates to the rounding 23, 24 of the respective extension 17, 18 lying in the view, which continues continuously into a corresponding rounding 25, 26 of the shield segment 16 (see FIG. 1).
Der dritte Aspekt betrifft die Einschweißung des jeweiligen Tragzapfens 1 1 , 1 1 ' in eine Bohrung 27 des jeweiligen Schildsegmentes 16, 16'. Vorteilhaft ist dazu der derThe third aspect relates to the welding of the respective trunnion 1 1, 1 1 'into a bore 27 of the respective shield segment 16, 16'. The is advantageous to that
Stahlgießpfanne 1 zugewandte Endbereich des Tragzapfens 11 ' als ein einen größeren Durchmesser aufweisender Flansch 28 ausgebildet. Um eine hohe Schweißnahtgüte zu erreichen, weist der Mantel 29 des Flansches 28 eine dachartige Kontur auf. Dadurch ist es möglich, zuerst die eine Seite mit einer Schweißnaht zu versehen, danach die Wurzel dieser erstgelegten Schweißnaht auszudrehen und dann von der anderen Seite her die Gegenlage zu schweißen. Um die Kontaktreibung zwischen Tragzapfen 11 ' und Schlaufe 12' zu minimieren, ist der Tragzapfen 1 1 ' mit einer Lagerschale 30 versehen. Die seitliche Abstützung für die Schlaufe 12' bildet ein Streifblech 31 , das mittels eines auf der Stirnseite des Tragzapfens 1 1 ' befestigten Haltebleches 32 fixiert ist. Die Befestigung erfolgt in diesem Ausführungsbeispiel überSteel casting ladle 1 facing end region of the support pin 11 'is designed as a larger diameter flange 28. In order to achieve a high weld seam quality, the jacket 29 of the flange 28 has a roof-like contour. This makes it possible to first provide a weld seam on one side, then unscrew the root of this first weld seam and then weld the opposite side from the other side. In order to minimize the contact friction between the support pin 11 'and the loop 12', the support pin 11 'is provided with a bearing shell 30. The lateral support for the loop 12 'forms a scraper plate 31, which is fixed by means of a holding plate 32 fastened to the end face of the trunnion 11'. The attachment takes place in this embodiment
Schrauben 33.Screws 33.
In der Phase der Herstellung der Stahlgießpfanne 1 ist der mittlere Rohrschuß 4 des Metallmantels mit einer kleinen Bohrung 34 versehen (Fig. 4), die fluchtend zu einer im jeweiligen Tragzapfen 1 1 , 1 1 ' angeordneten größeren Längsbohrung 35 liegt, in diese Längsbohrung 35 kann eine Meßvorrichtung eingelegt werden, um die Fluchtgleichheit der beiden gegenüberliegenden Tragzapfen 11 , 1 1 ' zu überprüfen. Nach der Messung wird die Bohrung 34 im Metallmaπtel wieder verschlossen. In the phase of the production of the steel ladle 1, the middle pipe section 4 of the metal jacket is provided with a small bore 34 (FIG. 4), which is aligned with a larger longitudinal bore 35 arranged in the respective trunnion 1 1, 1 1 ', in this longitudinal bore 35 a measuring device can be inserted to check the alignment of the two opposite trunnions 11, 1 1 '. After the measurement, the bore 34 in the metal jacket is closed again.

Claims

Patentansprüche claims
1. Gefäß für metallurgische Zwecke zum Transport von schmelzflüssigen Metallen mit einem eine hitzebeständige Auskleidung aufnehmenden, aus einzelnen rohrförmigen Schüssen zusammengesetzten Metallmantel, der zwei in1. vessel for metallurgical purposes for the transport of molten metals with a heat-resistant lining receiving, composed of individual tubular sections composed of metal shell, the two in
Umfangsrichtung verlaufende im axialen Abstand zueinander im Metallmantel integrierte Versteifungsringe aufweist und an dem zwei Tragzapfen an der Außenseite gegenüberliegend angeordnet und mittels je einer mit den Versteifungsringen verbundenen Platte abgestützt sind, wobei die Platte einen geringen Abstand zum Metallmantel aufweist und der dem Boden näher liegende Versteifungsring eine Dicke aufweist, die bis um den Faktor 4 und der vom Boden weiter entfernt liegende zweite Versteifungsring eine Dicke aufweist, die bis um den Faktor 6 größer ist als die des anschließenden Metallmantels und die axiale Erstreckung des erstgenannten Versteifungsringes gleich oder größer ist als die des zweiten und ggf. am Gefäßrand einHas circumferentially extending stiffening rings integrated in the metal casing at an axial distance from one another and on which two support pins are arranged on the outside opposite each other and supported by means of a plate connected to the stiffening rings, the plate being at a short distance from the metal casing and the stiffening ring closer to the ground being one Thickness that is up to a factor of 4 and the second stiffening ring further away from the ground has a thickness that is up to a factor of 6 greater than that of the subsequent metal sheath and the axial extension of the first-mentioned stiffening ring is equal to or greater than that of the second and possibly at the edge of the vessel
Deckelaufsatz befestigt ist, der einen kegelstumpfartigen Querschnitt aufweist, dadurch gekennzeichnet, daß der dem Boden (2) näher liegende erste Versteifungsring (6) im Bereich der als Schildsegment (16, 16')ausgebildeten Platte eine nach oben gerichtete nasenartig ausgebildete Fortführung (17) und der dem Boden (2) weiter entfernt liegende zweite Versteifungsring (7) im Bereich des Schildsegmentes (16, 16') eine nach unten gerichtete nasenartig ausgebildete Fortführung (18) aufweist und zwischen den Fortführungen (17, 18) das Schildsegment eingeschweißt ist, wobei der Übergang von der jeweiligen Fortführung (17, 18) in den jeweiligen Versteifungsring (6, 7) sowohl im Längsschnitt als auch in der Draufsicht abgerundet ist und die letztgenannten Abrundungen (23, 24) knickfrei in entsprechende Abrundungen (25, 26) des Schildsegmentes (16, 16') übergehen.Lid attachment is fastened, which has a frustoconical cross-section, characterized in that the first stiffening ring (6) closer to the bottom (2) in the area of the plate designed as a shield segment (16, 16 ') has an upwardly directed projection (17) and the second stiffening ring (7) further away from the floor (2) in the area of the shield segment (16, 16 ') has a downward nose-shaped extension (18) and the shield segment is welded in between the extensions (17, 18), wherein the transition from the respective continuation (17, 18) into the respective stiffening ring (6, 7) is rounded off both in longitudinal section and in plan view and the last-mentioned roundings (23, 24) into corresponding roundings (25, 26) of the Pass over the shield segment (16, 16 ').
2. Gefäß nach Anspruch 1 , dadurch gekennzeichnet, daß der Tragzapfen (1 1 , 1 1 ') in einer Bohrung (27) des Schildsegmentes (16, 16') eingeschweißt ist. 2. A vessel according to claim 1, characterized in that the support pin (1 1, 1 1 ') is welded into a bore (27) of the shield segment (16, 16').
3. Gefäß nach Anspruch 2, dadurch gekennzeichnet, daß der dem Schildsegment (16, 16') zugewandte Endbereich des Tragzapfens (11 , 11') mit einem einen größeren Durchmesser aufweisenden Flansch (28) ausgebildet ist.3. A vessel according to claim 2, characterized in that the end portion of the trunnion (11, 11 ') facing the shield segment (16, 16') is formed with a flange (28) having a larger diameter.
4. Gefäß nach Anspruch 3, dadurch gekennzeichnet, daß der Mantelbereich (29) des Flansches (28) im Querschnitt gesehen dachartig ausgebildet ist.4. A vessel according to claim 3, characterized in that the jacket region (29) of the flange (28) is roof-like in cross section.
5. Gefäß nach Anspruch 1 , dadurch gekennzeichnet, daß die Versteifungsringe (6, 7) aus einzelnen Segmenten zusammengesetzt sind.5. A vessel according to claim 1, characterized in that the stiffening rings (6, 7) are composed of individual segments.
6. Gefäß nach Anspruch 5, dadurch gekennzeichnet, daß die einzelnen Segmente unterschiedliche Radien r, R aufweisen.6. A vessel according to claim 5, characterized in that the individual segments have different radii r, R.
7. Gefäß nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Rohrschüsse (3,4,5) im Längsschnitt zylindrisch sind.7. Vessel according to one of claims 1 to 6, characterized in that the pipe sections (3,4,5) are cylindrical in longitudinal section.
8. Gefäß nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß am freien Ende des oberen Rohrschusses (5) ein Randwinkel angeschweißt ist. 8. A vessel according to one of claims 1 to 7, characterized in that a contact angle is welded onto the free end of the upper pipe section (5).
EP98909339A 1997-02-06 1998-01-29 Vessel for metallurgical purposes Expired - Lifetime EP0963265B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19706056 1997-02-06
DE19706056A DE19706056C1 (en) 1997-02-06 1997-02-06 Metallurgical vessel
PCT/DE1998/000322 WO1998034745A1 (en) 1997-02-06 1998-01-29 Vessel for metallurgical purposes

Publications (2)

Publication Number Publication Date
EP0963265A1 true EP0963265A1 (en) 1999-12-15
EP0963265B1 EP0963265B1 (en) 2002-03-20

Family

ID=7820504

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EP98909339A Expired - Lifetime EP0963265B1 (en) 1997-02-06 1998-01-29 Vessel for metallurgical purposes

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US (1) US6110414A (en)
EP (1) EP0963265B1 (en)
JP (1) JP3339868B2 (en)
AT (1) ATE214647T1 (en)
AU (1) AU6391498A (en)
CA (1) CA2280168C (en)
DE (1) DE19706056C1 (en)
WO (1) WO1998034745A1 (en)

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MXPA01001782A (en) * 1998-08-18 2002-04-08 Mannesmannr Hren Werke Ag Metallurgic container.
DE10006771C2 (en) * 1999-02-11 2001-11-29 Mannesmann Ag Vessel for metallurgical purposes
AU3801500A (en) * 1999-02-11 2000-08-29 Asku-Scholten Gmbh Tank for metallurgical purposes
DE10033966C1 (en) * 2000-07-06 2001-10-25 Mannesmann Ag Metallurgical device used for transporting molten metals has an insulating layer arranged in the region of a tappet shield between the outer lining and the inner side of the shield
DE10050835C1 (en) * 2000-10-05 2001-12-20 Mannesmann Ag Metallurgical vessel used as a casting ladle for transporting molten metals has a one-part shielding segment and arms extending in the upper region in both peripheral directions
JP3903321B2 (en) * 2004-12-28 2007-04-11 株式会社大紀アルミニウム工業所 Molten metal ladle
CN103206860B (en) * 2013-04-22 2014-12-10 五力机电科技（昆山）有限公司 Side sealing plate of furnace
EP2921564A1 (en) * 2014-03-20 2015-09-23 Siemens VAI Metals Technologies GmbH Metallurgical container
JP6398512B2 (en) * 2014-09-18 2018-10-03 新日鐵住金株式会社 Ladle for molten metal
KR101695750B1 (en) * 2015-05-20 2017-01-12 주식회사 포스코 Bushing for ladle lifting lug and ladle having the same

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WO1998034745A1 (en) 1998-08-13
CA2280168C (en) 2004-01-27
JP3339868B2 (en) 2002-10-28
JP2000512911A (en) 2000-10-03
US6110414A (en) 2000-08-29
DE19706056C1 (en) 1998-05-28
CA2280168A1 (en) 1998-08-13
ATE214647T1 (en) 2002-04-15
AU6391498A (en) 1998-08-26
EP0963265B1 (en) 2002-03-20

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