EP0963265B1 - Vessel for metallurgical purposes - Google Patents
Vessel for metallurgical purposes Download PDFInfo
- Publication number
- EP0963265B1 EP0963265B1 EP98909339A EP98909339A EP0963265B1 EP 0963265 B1 EP0963265 B1 EP 0963265B1 EP 98909339 A EP98909339 A EP 98909339A EP 98909339 A EP98909339 A EP 98909339A EP 0963265 B1 EP0963265 B1 EP 0963265B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shield segment
- vessel
- metal casing
- area
- vessel according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 239000002184 metal Substances 0.000 claims abstract description 20
- 229910052751 metal Inorganic materials 0.000 claims abstract description 20
- 230000007704 transition Effects 0.000 claims abstract description 5
- 150000002739 metals Chemical class 0.000 claims abstract description 4
- 230000008859 change Effects 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims 9
- 230000001747 exhibiting effect Effects 0.000 claims 3
- 230000002787 reinforcement Effects 0.000 abstract 5
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 238000013461 design Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910000805 Pig iron Inorganic materials 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000009489 vacuum treatment Methods 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/04—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 not only serve to transport molten metals such as z. B. Pig iron from the blast furnace to the pig iron mixer or from the pig iron mixer to Converter, but can also be a metallurgical treatment vessel.
- molten metals such as z. B. Pig iron from the blast furnace to the pig iron mixer or from the pig iron mixer to Converter, but can also be a metallurgical treatment vessel.
- the thermal load for the Treatment vessel particularly high because of the high process Overheating temperature is driven.
- a vessel has been used for metallurgical purposes proposed (DE 195 38 530 C1), in which, in contrast to the conventional The stiffening rings are not welded onto the outside of the outer surface, but are integrated in the metal jacket. Furthermore, the vascular support pin has supporting plate a short distance from the metal jacket and the top and the lower brim-like edge region of the plate is adjacent to the lying stiffening rings connected, the one attached to the plate Vessel trunnion only extends outwards.
- the stiffening ring closer to the bottom has a thickness that up to a factor of 4 and the second one further away from the ground Stiffening ring a thickness that is up to a factor of 6 greater than that of subsequent metal jacket, the axial extent of the former Stiffening ring is equal to or larger than that of the second, in the event that the vessel is used as a steel pouring pan, the rim of the vessel with a lid attachment connected, which preferably has a frustoconical cross section. to Stiffening of this area is the arrangement of another stiffening ring on Vessel rim provided.
- This well-known vessel is used in combination with load and heat evenly stressed and it can reach an intrinsic temperature of up to 400 ° C resist.
- the disadvantage of this construction is that the welded connections between the stiffening rings and the plate are exposed to large loads and the transition from the stiffening ring to the plate is unfavorable in terms of the lines of force.
- the object of the invention is based on the known vessel, the construction to improve 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 shield segment trained plate.
- Both stiffening rings have a nose-like continuation that is directed upwards and downwards.
- the Shield segment is welded in between the two continuations. With that the joint welds placed in a zone with less stress, so that the fatigue strength of this area is increased.
- the other is the transition from Stiffening ring to the shield segment is very rounded, this rounded in Shield segment continues. This type of training improves the flow of lines of force, so that there is an almost isotensic execution.
- the special shape and location of the two stiffening rings in connection with the shield segment makes it possible towards the otherwise usual stiffening ring arranged on the edge of the vessel dispense.
- the vessel is also in the upper edge area for vessels without a ring lid stiff enough that the arrangement of a wedge angle is sufficient.
- Another feature relates to the type of connection of the vessel support pin with the Shield segment.
- the Trunnion not welded to a plate, but in a hole in the Shield segment welded in.
- too Welding area of the vessel support pin than a larger diameter having flange formed.
- the Sheath of the flange formed roof-like so that only from one side can be welded in, then the root is unscrewed and finally the Counterpart is welded from the other side.
- stiffening rings are made of Segments. This applies in particular to vessels with a oval cross section.
- the individual segments of the stiffening rings then have one different radius, which simplifies the manufacture of the stiffening rings, especially since in this way the area with the nose-shaped Continuation can produce separately.
- the advantage of the vessel according to the invention can be seen in the fact that, on the one hand, too at high intrinsic temperatures there are no impermissible deformations and the Tension in the material of the vessel are evenly distributed.
- One consequence of this is even one that does not change under high weight and temperature loads Geometry of the vessel. This can be seen particularly from the fact that the The trunnions remain horizontal.
- the production is simplified because of dispenses with the otherwise usual stiffening ring arranged on the edge of the vessel can be.
- Figure 1 shows a view of a metallurgical constructed according to the invention Vessel, which is designed here, for example, as a steel ladle 1.
- the Steel ladle 1 consists of a metal jacket and a pan bottom 2.
- the Metal jacket is in this embodiment in three different widths Pipe sections 3 - 5 divided. Depending on the pan height and design, the Number of pipe sections less or larger. Between the pipe sections 3 - 5 two stiffening rings 6, 7 are integrated in the metal jacket.
- the exemplary embodiment is the top edge 8 of the vessel with a ring lid 9 trained lid attachment connected. This ring cover preferably has 9 a frustoconical cross-section.
- a tilt linkage 10 attached to the steel ladle 1 by means of not here to tilt the crane shown.
- FIG. 2 shows in a section in the direction BB in Figure 1, the special cross-sectional shape of the steel ladle 1 shown here.
- the cross-sectional shape is elliptical, the area of the middle pipe section 4 lying behind the respective shield segment 16, 16 'having a very large circular radius R for static 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 by 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 which is closer to the pan base 2 and downwards for the stiffening ring 7 which is further away from the pan base 2.
- the transition from the respective extension 17, 18 into the actual stiffening ring 6, 7, which can be seen in longitudinal section, 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 continuously continues 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 11, 11 'into one Bore 27 of the respective shield segment 16, 16 '.
- The is advantageous to that Steel casting ladle 1 facing end portion of the trunnion 11 'as a one larger diameter flange 28 formed.
- the jacket 29 of the flange 28 has a roof-like Contour on. This makes it possible to first close one side with a weld provided, then unscrew the root of this first weld and then to weld the opposite side from the other side.
- About contact friction between the trunnion 11 'and the loop 12' to minimize the trunnion 11 ' provided a bearing shell 30.
- the lateral support for the loop 12 ' forms one Scraper plate 31, which is attached by means of a on the end face of the support pin 11 ' Retaining plate 32 is fixed. The attachment takes place in this embodiment Screws 33.
- the middle pipe section 4 of the Metal jacket provided with a small bore 34 (Fig. 4) which is aligned with one in respective supporting pin 11, 11 'arranged larger longitudinal bore 35.
- a measuring device can be inserted to ensure alignment to check the two opposite trunnions 11, 11 '. 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)
- Prostheses (AREA)
- Liquid Crystal Substances (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
Description
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
Derartige Gefäße dienen nicht nur dem Transport von schmelzflüssigen 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 hohen Überhitzungstemperatur gefahren wird.Such vessels not only serve to transport molten metals such as z. B. Pig iron from the blast furnace to the pig iron mixer or from the pig iron mixer to Converter, but can also be a metallurgical treatment vessel. In particular, in the course of increasing the level of purity and the reduction in the content of dissolved gases steadily increases the vacuum treatment Gained meaning. With this method, the thermal load for the Treatment vessel particularly high because of the high process 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 Metallmantel 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 Stahigießpfanne 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 has been used for metallurgical purposes proposed (DE 195 38 530 C1), in which, in contrast to the conventional The stiffening rings are not welded onto the outside of the outer surface, but are integrated in the metal jacket. Furthermore, the vascular support pin has supporting plate a short distance from the metal jacket and the top and the lower brim-like edge region of the plate is adjacent to the lying stiffening rings connected, the one attached to the plate Vessel trunnion only extends outwards. As for the thickness of the stiffening rings relates, the stiffening ring closer to the bottom has a thickness that up to a factor of 4 and the second one further away from the ground Stiffening ring a thickness that is up to a factor of 6 greater than that of subsequent metal jacket, the axial extent of the former Stiffening ring is equal to or larger than that of the second, in the event that the vessel is used as a steel pouring pan, the rim of the vessel with a lid attachment connected, which preferably has a frustoconical cross section. to Stiffening of this area is the arrangement of another stiffening ring on Vessel rim provided.
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 used in combination with load and heat evenly stressed and it can reach an intrinsic temperature of up to 400 ° C resist. The disadvantage of this construction is that the welded connections between the stiffening rings and the plate are exposed to large loads and the transition from the stiffening ring to the plate is unfavorable in terms of the lines 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 based on the known vessel, the construction to improve so that the disadvantages described are avoided and the Manufacture of the vessel is simplified.
Diese Aufgabe wird mit den Merkmalen des Patentanspruches 1
gelöst. Vorteilhafte Weiterbildungen sind Bestandteil von
Unteransprüchen.This object is achieved with the features of
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. The essential modification according to the invention of the known construction relates to the formation of the stiffening rings in the area of the shield segment trained plate. Both stiffening rings have a nose-like continuation that is directed upwards and downwards. The Shield segment is welded in between the two continuations. With that the joint welds placed in a zone with less stress, so that the fatigue strength of this area is increased. The other is the transition from Stiffening ring to the shield segment is very rounded, this rounded in Shield segment continues. This type of training improves the flow of lines of force, so that there is an almost isotensic execution. The special shape and location of the two stiffening rings in connection with the shield segment makes it possible towards the otherwise usual stiffening ring arranged on the edge of the vessel dispense. The vessel is also in the upper edge area for vessels without a ring lid stiff enough that the arrangement of a wedge angle is sufficient.
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 Gefäßtragzapfens 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.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 not welded to a plate, but in a hole in the Shield segment welded in. In order to relieve these weld seams, too Welding area of the vessel support pin than a larger diameter having flange formed. To improve the weld quality, the Sheath of the flange formed roof-like, so that only from one side can be welded in, then the root is unscrewed and finally the Counterpart is welded from the other side.
Als vorteilhaft hat sich ebenfalls herausgestellt, wenn die Versteifungsringe 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 ausgebildeten Fortführung separat herstellen kann. Um ein optimales Füllvolumen für das Gefäß zu erreichen, ist es vorteilhaft, die einzelnen Rohrschüsse im Längsschnitt gesehen zylindrisch auszubilden.It has also proven to be advantageous if the stiffening rings are made of Segments. This applies in particular to vessels with a oval cross section. The individual segments of the stiffening rings then have one different radius, which simplifies the manufacture of the stiffening rings, especially since in this way the area with the nose-shaped Continuation can produce separately. To ensure an optimal filling volume for the vessel reach, it is advantageous to see the individual pipe sections in longitudinal section to be cylindrical.
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, too at high intrinsic temperatures there are no impermissible deformations and the Tension in the material of the vessel are evenly distributed. One consequence of this is even one that does not change under high weight and temperature loads Geometry of the vessel. This can be seen particularly from the fact that the The trunnions remain horizontal. Furthermore, the production is simplified because of dispenses with the otherwise usual stiffening ring arranged on the edge of the vessel can be.
In der Zeichnurg wird anhand eines Ausführungsbeispiels das erfindungsgemäß ausgebildete Gefäß für metallurgische Zwecke näher erläutert. Es zeigen:
Figur 1- eine Ansicht eines erfindungsgemäß ausgebildeten Gefäßes
Figur 2- einen Schnitt entlang der Linie B-B in
Figur 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 Tragzapfen
- Figure 1
- a view of a vessel designed according to the invention
- Figure 2
- a section along the line BB in Figure 1
- Figure 3
- a section along the line AA in Figure 1
- Figure 4
- on an enlarged scale the design of the trunnion including the connection to the shield segment
- Figure 5
- on an enlarged scale of the trunnions
Figur 1 zeigt in einer Ansicht ein erfindungsgemäß konstruiertes metallurgisches
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.Figure 1 shows a view of a metallurgical constructed according to the invention
Vessel, which is designed here, for example, as a
Figur 2 zeigt in einem Schnitt in Richtung B-B in Figur 1 die besondere
Querschnittsform der hier dargestellten Stahlgießpfanne1. 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 in a section in the direction BB in Figure 1, the special cross-sectional shape of the
The part of the
Der dritte Aspekt betrifft die Einschweißung des jeweiligen Tragzapfens 11, 11' in eine
Bohrung 27 des jeweiligen Schildsegmentes 16, 16'. Vorteilhaft ist dazu der der
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 11' mit
einer Lagerschale 30 versehen. Die seitliche Abstützung für die Schlaufe 12' bildet ein
Streifblech 31, das mittels eines auf der Stirnseite des Tragzapfens 11' befestigten
Haltebleches 32 fixiert ist. Die Befestigung erfolgt in diesem Ausführungsbeispiel über
Schrauben 33.The third aspect relates to the welding of the
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 11, 11' angeordneten größeren Längsbohrung 35 liegt. In diese
Längsbohrung 35 kann eine Meßvorrichtung eingelegt werden, um die Fluchtgleichheit
der beiden gegenüberliegenden Tragzapfen 11, 11' zu überprüfen. Nach der Messung
wird die Bohrung 34 im Metallmantel wieder verschlossen.In the phase of the production of the
Claims (8)
- A vessel for metallurgical purposes for conveying molten metals, having a metal casing accommodating a heat-resistant lining and composed of individual tubular lengths of pipe, which metal casing comprises two reinforcing rings extending in the circumferential direction and incorporated into the metal casing at an axial distance from one another and on the outside of which metal casing there are disposed in mutually opposing arrangement two lifting lugs, which are each supported by a plate connected with the reinforcing rings, the plate being at a short distance from the metal casing and the reinforcing ring nearer to the base exhibiting a thickness which is greater by a factor of 4 and the second reinforcing ring further from the base exhibiting a thickness greater by a factor of 6 than that of the adjoining metal casing and the axial extension of the first-mentioned reinforcing ring being equal to or greater than that of the second and a lid attachment being optionally attached to the vessel rim, which lid attachment exhibits a truncated cone-type cross section,
characterised in that
the first reinforcing ring (6) located nearer the base (2) comprises an upwardly directed nose-like continuation (17) in the area of the plate constructed as a shield segment (16, 16') and the second reinforcing ring (7) located further from the base (2) comprises a downwardly directed nose-like continuation (18) in the area of the shield segment (16, 16') and the shield segment is welded in between the continuations (17, 18), the area of transition between the respective continuation (17, 18) and the respective reinforcing ring (6, 7) being rounded both in longitudinal section and in plan view and the latter rounded portions (23, 24) merging without abrupt change of direction into corresponding rounded portions (25, 26) of the shield segment (16, 16'). - A vessel according to claim 1,
characterised in that
the lifting lug (11, 11') is welded into a bore (27) in the shield segment (16, 16'). - A vessel according to claim 2,
characterised in that
the end area of the lifting lug (11, 11') facing the shield segment (16, 16') comprises a flange (28) exhibiting a larger diameter. - A vessel according to claim 3,
characterised in that
the outer circumferential area (29) of the flange (28) takes the form of a roof when viewed in cross section. - A vessel according to claim 1,
characterised in that
the reinforcing rings (6, 7) are composed of individual segments. - A vessel according to claim 5,
characterised in that
the individual segments exhibit different radii r, R. - A vessel according to one of claims 1 to 6,
characterised in that
the lengths of pipe (3, 4, 5) are of cylindrical longitudinal section. - A vessel according to one of claims 1 to 7,
characterised in that
a rim angle is welded onto the free end of the upper length of pipe (5).
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 EP0963265A1 (en) | 1999-12-15 |
| EP0963265B1 true EP0963265B1 (en) | 2002-03-20 |
Family
ID=7820504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98909339A Expired - Lifetime EP0963265B1 (en) | 1997-02-06 | 1998-01-29 | Vessel for metallurgical purposes |
Country Status (8)
| Country | Link |
|---|---|
| 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) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MXPA01001782A (en) * | 1998-08-18 | 2002-04-08 | Mannesmannr Hren Werke Ag | Metallurgic container. |
| AU3801500A (en) * | 1999-02-11 | 2000-08-29 | Asku-Scholten Gmbh | Tank for metallurgical purposes |
| DE10006771C2 (en) * | 1999-02-11 | 2001-11-29 | Mannesmann Ag | Vessel 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 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US909655A (en) * | 1908-05-15 | 1909-01-12 | Frank A Wilmot | Swinging ladle. |
| US1861946A (en) * | 1929-07-11 | 1932-06-07 | Wilhelmi Alfred | Carrier for slag pans and the like |
| US2043048A (en) * | 1934-12-15 | 1936-06-02 | Bethlehem Steel Corp | Ladle |
| US2165066A (en) * | 1937-07-22 | 1939-07-04 | Smith Corp A O | Supporting means for ladles |
| DE1172404B (en) * | 1959-12-03 | 1964-06-18 | Mueller Schuss Kommanditgesell | Ladle |
| FR1321243A (en) * | 1962-05-02 | 1963-03-15 | Beteiligungs & Patentverw Gmbh | Tilting metallurgical vessel such as, for example, a converter with bearing journals |
| DE2901011B1 (en) * | 1979-01-12 | 1979-12-13 | Berninghaus Fa Ewald | Bearing pin fastening for ladles in Huettenwerke |
| DE19538530C5 (en) * | 1995-10-06 | 2004-02-19 | Mannesmann Ag | Vessel for metallurgical purposes |
-
1997
- 1997-02-06 DE DE19706056A patent/DE19706056C1/en not_active Expired - Lifetime
-
1998
- 1998-01-29 AT AT98909339T patent/ATE214647T1/en active
- 1998-01-29 JP JP53355898A patent/JP3339868B2/en not_active Expired - Fee Related
- 1998-01-29 CA CA002280168A patent/CA2280168C/en not_active Expired - Fee Related
- 1998-01-29 US US09/355,715 patent/US6110414A/en not_active Expired - Fee Related
- 1998-01-29 EP EP98909339A patent/EP0963265B1/en not_active Expired - Lifetime
- 1998-01-29 AU AU63914/98A patent/AU6391498A/en not_active Abandoned
- 1998-01-29 WO PCT/DE1998/000322 patent/WO1998034745A1/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| WO1998034745A1 (en) | 1998-08-13 |
| JP2000512911A (en) | 2000-10-03 |
| JP3339868B2 (en) | 2002-10-28 |
| EP0963265A1 (en) | 1999-12-15 |
| CA2280168A1 (en) | 1998-08-13 |
| CA2280168C (en) | 2004-01-27 |
| AU6391498A (en) | 1998-08-26 |
| US6110414A (en) | 2000-08-29 |
| ATE214647T1 (en) | 2002-04-15 |
| DE19706056C1 (en) | 1998-05-28 |
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