EP0025027B1 - Filling post for reladling liquid metal out of a tiltable metallurgical vessel - Google Patents

Filling post for reladling liquid metal out of a tiltable metallurgical vessel Download PDF

Info

Publication number
EP0025027B1
EP0025027B1 EP80890085A EP80890085A EP0025027B1 EP 0025027 B1 EP0025027 B1 EP 0025027B1 EP 80890085 A EP80890085 A EP 80890085A EP 80890085 A EP80890085 A EP 80890085A EP 0025027 B1 EP0025027 B1 EP 0025027B1
Authority
EP
European Patent Office
Prior art keywords
casing
stand according
filling stand
opening
displacement direction
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
Application number
EP80890085A
Other languages
German (de)
French (fr)
Other versions
EP0025027A1 (en
Inventor
Friedrich Laimer
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.)
Voestalpine AG
Original Assignee
Voestalpine 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 Voestalpine AG filed Critical Voestalpine AG
Publication of EP0025027A1 publication Critical patent/EP0025027A1/en
Application granted granted Critical
Publication of EP0025027B1 publication Critical patent/EP0025027B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/38—Removal of waste gases or dust
    • C21C5/40—Offtakes or separating apparatus for converter waste gases or dust
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D45/00—Equipment for casting, not otherwise provided for

Definitions

  • the invention relates to a fill level for decanting liquid metal from a tiltable metallurgical vessel into a metallurgical pan, in particular for decanting molten pig iron from a pig iron mixer into a transport pan, the metallurgical pan being surrounded by a housing to which at least one suction line is connected and in the upper part of which a pouring opening for the liquid metal is provided which is arranged below a spout of the tiltable vessel.
  • a fill level of this type is known from DE-AS 2056261.
  • the pan to be filled with pig iron is placed on a pan wagon that can be moved in a pit under the floor.
  • the pit is closed at one end by a fixed cover having a pouring opening.
  • the ladle can be moved under the pouring opening by means of the ladle trolley, the pit being closable to the side by a sign mounted on the ladle trolley.
  • Suction lines open into this pit for extracting the smoke generated when the liquid metal is decanted. It is very difficult to seal the pit completely using the shield mounted on the ladle wagon, so that one is forced to suck in false air through the leaks, which must be extracted from the pit together with the smoke that is produced.
  • the invention aims to avoid these disadvantages and difficulties and has as its object to create a fill level of the type described in which only small amounts of false air are sucked in through the suction system, whereby the suction and filtering performance of the suction system can be kept correspondingly small . Furthermore, the fill level should be small and of a simple design, so that it can be retrofitted into existing production systems.
  • At least a part of the housing including the pan, which has the pouring opening can be displaced in the tilting plane of the tiltable vessel in accordance with the change in position of the metal jet flowing out of the pouring of the tiltable vessel.
  • the position of the pouring opening can be adapted to the position of the outflowing metal jet which is dependent on the melt level or the tilting angle of the tiltable metallurgical vessel, as a result of which the pouring opening only has to be made so large that the pan is properly filled is possible when the metal jet passes approximately centrally through the pouring opening.
  • a preferred embodiment is characterized in that the upper part of the housing can be displaced in the horizontal direction relative to the fixedly arranged lower part of the housing, the upper part of the housing advantageously being designed as a horizontal ceiling covering a foundation pit, the lower housing part being arranged in the foundation pit. This results in a particularly simple construction of a fill level.
  • the displaceable upper part preferably comprises side wall parts adjoining the ceiling and a suction opening is arranged on at least one of its side wall parts, into which the suction line opens.
  • the side walls of the lower part of the housing which are arranged transversely to the direction of displacement, are expediently designed in a flange-like manner in the displacement direction of the upper part, so that the displaceable upper part is properly sealed in each of its positions against the stationary lower part.
  • a particularly good seal can be achieved in that side wall parts arranged in the direction of displacement of the upper part are sealed with respect to the lower part of the housing by means of sealing strips, preferably by means of L-shaped sealing strips which engage in a recess in the corresponding side walls of the lower part of the housing.
  • Each of the side wall parts arranged in the direction of displacement of the upper part is preferably provided with a suction opening each associated with a suction line.
  • centering devices are provided on the bottom of the housing for securing the position of the metallurgical ladle.
  • the suction opening on the outside of the housing is provided with a preferably oval flange which extends in the direction of displacement of the upper part and to which the suction line connects with a transition part which is designed to be extended in the direction of displacement of the upper part, in each position of the upper part part of the full flow cross-section is given.
  • a further preferred embodiment is characterized in that the cover of the upper part of the housing which has the pouring opening is connected to the lower part of the housing and is displaceable together with the lower part of the housing.
  • FIG. 1 a section in the tilting plane of the tiltable metallurgical vessel through a fill level with an almost fully tiltable metallurgical vessel
  • FIG. 2 a similar section with an almost empty tiltable metallurgical vessel according to FIG show a first embodiment.
  • 3 shows a section along the line III-III of FIG. 2
  • FIG. 4 shows a section along the line IV-IV of FIG. 1.
  • FIG. 5 shows a detail of the fill level in the section taken along the line V-V of FIG. 3.
  • 6 and 7 show a further embodiment of a fill level according to the invention in a representation analogous to FIGS. 1 and 2.
  • a housing 4 is arranged under a spout 1 of a metallurgical vessel 3 that can be tilted about an axis 2 and serves to receive a transport pan 5.
  • the housing 4 is formed from a fixed lower part 7 arranged in a foundation pit 6 and an upper part 8, which is displaceable or movable in the tilting plane 11 1 of the metallurgical vessel 3 on wheels 9 which run on horizontally arranged rails 10.
  • the movable upper part 8 there are a pouring opening 12 and at least one suction opening 13 in the ceiling. In the exemplary embodiments, filling levels are shown with two suction openings 13 lying opposite each other.
  • the suction openings 13 have a circular cross-section and open via oval openings 14 having oval-conical transition parts 15 into suction lines 16 which are installed in a stationary manner in the hallway of the hut.
  • the outflowing metal jet 17 is displaced by a certain distance in the tilting plane of the tiltable metallurgical vessel 3.
  • the pouring opening 12 follows the respective position of the metal jet 17, as from the different positions of the upper part 8 of the housing 4 and the metal jet 17 of FIGS. 1 and 2 can be seen. This makes it possible to keep the pouring opening 12 as small as is necessary for the metal jet.
  • the maximum displacement of the metal beam 17 corresponds to the distance 18.
  • a drive motor 19 which drives the wheels 9 is provided as the drive for the upper part 8 in the exemplary embodiments shown.
  • a pressure medium cylinder could also be provided, which is fixed on the one hand and articulated on the upper part 8 on the other hand.
  • a spindle driven by an adjusting motor or a cable pull could also be installed instead of the pressure medium cylinder.
  • the suction openings 13 located in the side walls 20 of the movable upper part 8 are provided on the outer sides with oval flanges 25 shown in FIGS. 3 and 5 with a longitudinal axis located in the direction of travel of the movable upper part 8.
  • each flange 25 slides over the oval opening 14 of the respective oval-conical transition part 15 in order to cover the area of the oval opening 14 which is not covered by the circular suction opening 13.
  • the length 27 of the longitudinal axis of the oval flange 25 must be at least the sum of the length 26 plus the distance 18.
  • the transport pan 5 can be provided with a pouring spout 29. If this is the case, it is necessary to adapt the fixed lower part 7 and the movable upper part 8 to the pouring spout on the side facing the metallurgical vessel 3, as can be seen from FIG. 4.
  • the entire housing 4 ' that is to say its upper part 8' and lower part 7 ', can be moved in a foundation pit 6' in the tilting plane 11 of the tiltable metallurgical vessel 3.
  • the cover 30 of the housing 4 'carrying the pouring opening 12' can be pivoted into the position shown in dash-dotted lines in FIG. 6 for the purpose of bringing the transport pan 5 in and out.
  • the connections to the suction line lines and the drive of the housing 4 ' are formed analogously to the embodiment shown in FIGS. 1 to 5.
  • the fill level according to the invention can be used wherever liquid metal is poured from tiltable metallurgical vessels into parked, i.e. not hanging from a hoist, such as when transferring pig iron from a stationary or a movable mixer, when tapping SM furnaces, electrical Arc furnaces and LD crucibles, for tapping induction furnaces for iron and non-ferrous metallurgy and the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Description

Die Erfindung betrifft einen Füllstand zum Umfüllen flüssigen Metalles aus einem kippbaren metallurgischen Gefäss in eine metallurgische Pfanne, insbesondere zum Umfüllen von flüssigem Roheisen aus einem Roheisenmischer in eine Transportpfanne, wobei die metallurgische Pfanne von einem Gehäuse umgeben ist, an das mindestens eine Absaugleitung angeschlossen ist und in dessen Oberteil eine unterhalb eines Ausgusses des kippbaren Gefässes angeordnete Eingiessöffnung für das flüssige Metall vorgesehen ist.The invention relates to a fill level for decanting liquid metal from a tiltable metallurgical vessel into a metallurgical pan, in particular for decanting molten pig iron from a pig iron mixer into a transport pan, the metallurgical pan being surrounded by a housing to which at least one suction line is connected and in the upper part of which a pouring opening for the liquid metal is provided which is arranged below a spout of the tiltable vessel.

Ein Füllstand dieser Art ist aus der DE-AS 2056261 bekannt. Die mit Roheisen zu füllende Pfanne ist bei diesem Füllstand auf einen Pfannenwagen gesetzt, der unter dem Flur in einer Grube verfahrbar ist. Die Grube ist an einem Ende nach oben durch eine eine Eingiessöffnung aufweisende ortsfeste Abdeckung geschlossen. Mittels des Pfannenwagens ist die Pfanne unter die Eingiessöffnung fahrbar, wobei die Grube zur Seite hin durch ein am Pfannenwagen montiertes Schild schliessbar ist. In diese Grube münden Absaugleitungen zum Absaugen des beim Umfüllen des flüssigen Metalles entstehenden Rauches. Eine vollkommene Abdichtung der Grube mittels des am Pfannenwagen montierten Schildes ist nur schwer möglich, so dass man gezwungen ist, durch die undichten Stellen Falschluft anzusaugen, welche aus der Grube zusammen mit dem entstehenden Rauch abgesaugt werden muss. Da der aus dem kippbaren metallurgischen Gefäss austretende Metallstrahl je nach Stellung des Ausgusses des kippbaren Gefässes seine Lage ändert, ist ein weiterer Nachteil dieses bekannten Füllstandes darin zu sehen, dass die Eingiessöffnung sehr gross ausgeführt werden muss, um den Metallstrahl sowohl bei vollem als auch bei nahezu leerem kippbarem metallurgischem Gefäss hindurchtreten zu lassen. Bedingt durch diese grosse Eingiessöffnung werden ebenfalls grosse Mengen von Falschluft angesaugt, die mit dem Rauch mitabgesaugt werden müssen. Es muss bei dieser bekannten Anlage das Absaugsystem wesentlich grösser und stärker ausgelegt werden, als es für die beim Umfüllvorgang entstehenden Rauchmengen eigentlich notwendig wäre.A fill level of this type is known from DE-AS 2056261. At this level, the pan to be filled with pig iron is placed on a pan wagon that can be moved in a pit under the floor. The pit is closed at one end by a fixed cover having a pouring opening. The ladle can be moved under the pouring opening by means of the ladle trolley, the pit being closable to the side by a sign mounted on the ladle trolley. Suction lines open into this pit for extracting the smoke generated when the liquid metal is decanted. It is very difficult to seal the pit completely using the shield mounted on the ladle wagon, so that one is forced to suck in false air through the leaks, which must be extracted from the pit together with the smoke that is produced. Since the metal jet emerging from the tiltable metallurgical vessel changes its position depending on the position of the pouring spout of the tiltable vessel, a further disadvantage of this known filling level is that the pouring opening must be made very large in order to fill the metal jet both at full and at almost empty tiltable metallurgical vessel. Due to this large pouring opening, large quantities of false air are also sucked in, which must be extracted with the smoke. In this known system, the suction system must be designed to be much larger and stronger than would actually be necessary for the quantities of smoke generated during the transfer process.

Die Erfindung bezweckt die Vermeidung dieser Nachteile und Schwierigkeiten und stellt sich die Aufgabe, einen Füllstand der eingangs beschriebenen Art zu schaffen, bei dem nur geringe Mengen an Falschluft durch das Absaugsystem angesaugt werden, wodurch die Saug- und Filterleistungen des Absaugsystems entsprechend klein gehalten werden können. Weiters soll der Füllstand klein und von einfacher Bauart sein, so dass ein nachträglicher Einbau in bereits bestehende Produktionsanlagen möglich ist.The invention aims to avoid these disadvantages and difficulties and has as its object to create a fill level of the type described in which only small amounts of false air are sucked in through the suction system, whereby the suction and filtering performance of the suction system can be kept correspondingly small . Furthermore, the fill level should be small and of a simple design, so that it can be retrofitted into existing production systems.

Diese Aufgaben werden erfindungsgemäss dadurch gelöst, dass zumindest ein die Eingiessöffnung aufweisender Teil des die Pfanne einschliessenden Gehäuses in der Kippebene des kippbaren Gefässes entsprechend der Lageänderung des aus dem Ausguss des kippbaren Gefässes ausfliessenden Metallstrahles verschiebbar ist. Durch Verschieben des die Eingiessöffnung aufweisenden Teiles des Gehäuses kann die Position der Eingiessöffnung der von der Schmelzenniveauhöhe bzw. vom Kippwinkel des kippbaren metallurgischen Gefässes abhängigen Lage des ausfliessenden Metallstrahles angepasst werden, wodurch die Eingiessöffnung lediglich so gross ausgeführt werden muss, dass ein einwandfreies Füllen der Pfanne bei etwa zentrischem Durchtritt des Metallstrahles durch die Eingiessöffnung möglich ist.According to the invention, these objects are achieved in that at least a part of the housing including the pan, which has the pouring opening, can be displaced in the tilting plane of the tiltable vessel in accordance with the change in position of the metal jet flowing out of the pouring of the tiltable vessel. By moving the part of the housing which has the pouring opening, the position of the pouring opening can be adapted to the position of the outflowing metal jet which is dependent on the melt level or the tilting angle of the tiltable metallurgical vessel, as a result of which the pouring opening only has to be made so large that the pan is properly filled is possible when the metal jet passes approximately centrally through the pouring opening.

Eine bevorzugte Ausführungsform ist dadurch gekennzeichnet, dass der Oberteil des Gehäuses gegenüber dem ortsfest angeordneten Unterteil des Gehäuses in horizontaler Richtung verschiebbar ist, wobei vorteilhaft der Oberteil des Gehäuses als eine Fundamentgrube überdeckende horizontale Decke ausgebildet ist, wobei der Gehäuseunterteil in der Fundamentgrube angeordnet ist. Dies ergibt eine besonders einfache Bauart eines Füllstandes.A preferred embodiment is characterized in that the upper part of the housing can be displaced in the horizontal direction relative to the fixedly arranged lower part of the housing, the upper part of the housing advantageously being designed as a horizontal ceiling covering a foundation pit, the lower housing part being arranged in the foundation pit. This results in a particularly simple construction of a fill level.

Vorzugsweise umfasst der verschiebbare Oberteil an die Decke anschliessende Seitenwandteile und ist an mindestens einem seiner Seitenwandteile eine Absaugöffnung angeordnet, in die die Absaugleitung mündet.The displaceable upper part preferably comprises side wall parts adjoining the ceiling and a suction opening is arranged on at least one of its side wall parts, into which the suction line opens.

Zweckmässig sind die quer zur Verschieberichtung angeordneten Seitenwände des Unterteiles des Gehäuses in Verschieberichtung des Oberteiles flanschartig verstärkt ausgebildet, sodass der verschiebbare Oberteil in jeder seiner Lagen gegen den ortsfesten Unterteil einwandfrei gedichtet ist.The side walls of the lower part of the housing, which are arranged transversely to the direction of displacement, are expediently designed in a flange-like manner in the displacement direction of the upper part, so that the displaceable upper part is properly sealed in each of its positions against the stationary lower part.

Eine besonders gute Dichtung lässt sich dadurch erzielen, dass in Verschieberichtung des Oberteiles angeordnete Seitenwandteile gegen- ' über dem Unterteil des Gehäuses mittels Dichtleisten, vorzugsweise mittels L-förmiger, in eine Ausnehmung der entsprechenden Seitenwände des Unterteiles des Gehäuses eingreifender Dichtleisten gedichtet sind.A particularly good seal can be achieved in that side wall parts arranged in the direction of displacement of the upper part are sealed with respect to the lower part of the housing by means of sealing strips, preferably by means of L-shaped sealing strips which engage in a recess in the corresponding side walls of the lower part of the housing.

Vorzugsweise ist jeder der in Verschieberichtung des Oberteiles angeordneten Seitenwandteile mit je einer, jeweils einer Absaugleitung zugeordneten Absaugöffnung versehen.Each of the side wall parts arranged in the direction of displacement of the upper part is preferably provided with a suction opening each associated with a suction line.

Damit die metallurgische Pfanne jeweils die gleiche Lage im Gehäuse einnimmt, sind am Boden des Gehäuses Zentriervorrichtungen zur Lagesicherung der metallurgischen Pfanne vorgesehen.So that the metallurgical ladle occupies the same position in the housing, centering devices are provided on the bottom of the housing for securing the position of the metallurgical ladle.

Zwecks einwandfreier Abdichtung der Absaugöffnung ist die Absaugöffnung an der Aussenseite des Gehäuses mit einem sich in Verschieberichtung des Oberteiles erstreckenden, vorzugsweise ovalen Flansch versehen, an den die Absaugleitung mit einem in Verschieberichtung des Oberteiles erweitert ausgebildeten Übergangsteil anschliesst, wobei in jeder Stellung des Oberteiles der volle Durchflussquerschnitt gegeben ist.For the purpose of proper sealing of the suction opening, the suction opening on the outside of the housing is provided with a preferably oval flange which extends in the direction of displacement of the upper part and to which the suction line connects with a transition part which is designed to be extended in the direction of displacement of the upper part, in each position of the upper part part of the full flow cross-section is given.

Eine weitere bevorzugte Ausführungsform ist dadurch gekennzeichnet, dass die die Eingiessöffnung aufweisende Decke des Oberteiles des Gehäuses mit dem Unterteil des Gehäuses verbunden und gemeinsam mit dem Unterteil des Gehäuses verschiebbar ist.A further preferred embodiment is characterized in that the cover of the upper part of the housing which has the pouring opening is connected to the lower part of the housing and is displaceable together with the lower part of the housing.

Die Erfindung ist nachfolgend anhand der Zeichnung an zwei Ausführungsbeispielen näher erläutert, wobei Fig. 1 einen in der Kippebene des kippbaren metallurgischen Gefässes geführten Schnitt durch einen Füllstand bei nahezu vollem kippbarem metallurgischem Gefäss und Fig. 2 einen ebensolchen Schnitt bei nahezu geleertem kippbarem metallurgischem Gefäss gemäss einer ersten Ausführungsform zeigen. Fig. 3 gibt einen Schnitt gemäss der Linie lll-lll der Fig. 2 und Fig. 4 einen Schnitt gemäss der Linie IV-IV der Fig. 1 wieder. Fig. 5 zeigt ein Detail des Füllstandes im gemäss der Linie V-V der Fig. 3 geführten Schnitt. Die Fig. 6 und 7 zeigen in zu Fig. 1 und 2 analoger Darstellung eine weitere Ausführungsform eines erfindungsgemässen Füllstandes.The invention is explained in more detail below with reference to the drawing using two exemplary embodiments, with FIG. 1 a section in the tilting plane of the tiltable metallurgical vessel through a fill level with an almost fully tiltable metallurgical vessel and FIG. 2 a similar section with an almost empty tiltable metallurgical vessel according to FIG show a first embodiment. 3 shows a section along the line III-III of FIG. 2 and FIG. 4 shows a section along the line IV-IV of FIG. 1. FIG. 5 shows a detail of the fill level in the section taken along the line V-V of FIG. 3. 6 and 7 show a further embodiment of a fill level according to the invention in a representation analogous to FIGS. 1 and 2.

Unter einem Ausguss 1 eines um eine Achse 2 kippbaren metallurgischen Gefässes 3 ist ein Gehäuse 4 angeordnet, das zur Aufnahme einer Transportpfanne 5 dient. Das Gehäuse 4 ist aus einem in einer Fundamentgrube 6 angeordneten, ortsfesten Unterteil 7 und einem Oberteil 8 gebildet, der auf Rädern 9, die auf horizontal angeordneten Schienen 10 laufen, in der Kippebene 11 1 des metallurgischen Gefässes 3 verschiebbar bzw. verfahrbar ist. Im verfahrbaren Oberteil 8 befinden sich in der Decke eine Eingiessöffnung 12 und mindestens eine Absaugöffnung 13. In den Ausführungsbeispielen sind Füllstände mit jeweils zwei einander gegenüberliegenden Absaugöffnungen 13 dargestellt. Die Absaugöffnungen 13 haben einen kreisrunden Querschnitt und münden über ovale Öffnungen 14 aufweisende oval-konische Übergangsteile 15 in stationär auf Hüttenflur verlegte Absaugleitungen 16. Mit Abnahme des Metallspiegels im kippbaren metallurgischen Gefäss 3 muss dieses stärker gekippt werden. Dabei verlagert sich der ausfliessende Metallstrahl 17 um eine bestimmte Wegstrecke in der Kippebene des kippbaren metallurgischen Gefässes 3. Durch Verfahren des Oberteiles 8 folgt die Eingiessöffnung 12 der jeweiligen Position des Metallstrahles 17, wie aus den unterschiedlichen Positionen des Oberteiles 8 des Gehäuses 4 und des Metallstrahles 17 der Fig. 1 und 2 ersichtlich ist. Dadurch ist es möglich, die Eingiessöffnung 12 so klein zu halten, wie es gerade für den Metallstrahl erforderlich ist. Die maximale Verlagerung des Metallstrahles 17 entspricht der Wegstrecke 18.A housing 4 is arranged under a spout 1 of a metallurgical vessel 3 that can be tilted about an axis 2 and serves to receive a transport pan 5. The housing 4 is formed from a fixed lower part 7 arranged in a foundation pit 6 and an upper part 8, which is displaceable or movable in the tilting plane 11 1 of the metallurgical vessel 3 on wheels 9 which run on horizontally arranged rails 10. In the movable upper part 8 there are a pouring opening 12 and at least one suction opening 13 in the ceiling. In the exemplary embodiments, filling levels are shown with two suction openings 13 lying opposite each other. The suction openings 13 have a circular cross-section and open via oval openings 14 having oval-conical transition parts 15 into suction lines 16 which are installed in a stationary manner in the hallway of the hut. As the metal level in the tiltable metallurgical vessel 3 is removed, the latter has to be tilted more. The outflowing metal jet 17 is displaced by a certain distance in the tilting plane of the tiltable metallurgical vessel 3. By moving the upper part 8, the pouring opening 12 follows the respective position of the metal jet 17, as from the different positions of the upper part 8 of the housing 4 and the metal jet 17 of FIGS. 1 and 2 can be seen. This makes it possible to keep the pouring opening 12 as small as is necessary for the metal jet. The maximum displacement of the metal beam 17 corresponds to the distance 18.

Als Antrieb für den Oberteil 8 ist bei den dargestellten Ausführungsbeispielen ein Getriebemotor 19 vorgesehen, der die Räder 9 antreibt. Anstelle des Getriebemotors könnte auch ein Druckmittelzylinder vorgesehen sein, der einerseits ortsfest und andererseits am Oberteil 8 angelenkt ist.A drive motor 19 which drives the wheels 9 is provided as the drive for the upper part 8 in the exemplary embodiments shown. Instead of the geared motor, a pressure medium cylinder could also be provided, which is fixed on the one hand and articulated on the upper part 8 on the other hand.

Gemäss einer anderen Variante könnte anstelle des Druckmittelzylinders auch eine von einem Verstellmotor angetriebene Spindel oder ein Seilzug eingebaut werden.According to another variant, a spindle driven by an adjusting motor or a cable pull could also be installed instead of the pressure medium cylinder.

Die Abdichtung zwischen dem ortsfesten Unterteil 7 und dem verfahrbaren Oberteil 8 des Gehäuses 4 erfolgt bei den in Fahrtrichtung stehenden Seitenwänden 20 mittels am verfahrbaren Oberteil 8 befestigter, aus Fig. 4 ersichtlicher L-förmiger Dichtleisten 21. Bei den quer zur Fahrtrichtung gerichteten vorderen und rückwärtigen Seitenwänden 22 erfolgt die Abdichtung dadurch, dass die korrespondierenden Seitenwände 23 des-Unterteiles 7 an ihren oberen Rändern 24 flanschartig verstärkt ausgebildet sind, wobei die Breite der Ränder 24 mindestens der maximalen Wegstrecke 18 plus der Wandstärke einer der Seitenwände 22 des Oberteiles 8 entspricht. ,The sealing between the stationary lower part 7 and the movable upper part 8 of the housing 4 takes place in the side walls 20 which are in the direction of travel by means of L-shaped sealing strips 21 which are fastened to the movable upper part 8 and can be seen in FIG. 4 Side walls 22 are sealed in that the corresponding side walls 23 of the lower part 7 are of flange-like design at their upper edges 24, the width of the edges 24 corresponding at least to the maximum path 18 plus the wall thickness of one of the side walls 22 of the upper part 8. ,

Die in den Seitenwänden 20 des verfahrbaren Oberteiles 8 befindlichen Absaugöffnungen 13 sind an den Aussenseiten mit aus Fig. 3 und 5 ersichtlichen ovalen Flanschen 25 mit in Fahrtrichtung des verfahrbaren Oberteiles 8 gelegener Längsachse versehen. Wie aus Fig. 5 ersichtlich ist, gleitet jeder Flansch 25 bei Verfahren des Oberteiles über die ovale Öffnung 14 des jeweiligen oval-konischen Übergangsteiles 15, um die von der kreisrunden Absaugöffnung 13 nicht erfasste Fläche der ovalen Öffnung 14 abzudecken. Bei vorgegebener Länge 26 der in Fahrtrichtung liegenden Längsachse der ovalen Öffnung 14 des oval-konischen Übergangsteiles 15 muss die Länge 27 der Längsachse des ovalen Flansches 25 mindestens die Summe der Länge 26 plus der Wegstrecke 18 ausmachen.The suction openings 13 located in the side walls 20 of the movable upper part 8 are provided on the outer sides with oval flanges 25 shown in FIGS. 3 and 5 with a longitudinal axis located in the direction of travel of the movable upper part 8. As can be seen from FIG. 5, when the upper part is moved, each flange 25 slides over the oval opening 14 of the respective oval-conical transition part 15 in order to cover the area of the oval opening 14 which is not covered by the circular suction opening 13. Given a predetermined length 26 of the longitudinal axis of the oval opening 14 of the oval-conical transition part 15 lying in the direction of travel, the length 27 of the longitudinal axis of the oval flange 25 must be at least the sum of the length 26 plus the distance 18.

Um die richtige Positionierung der mittels eines Hebewerkzeuges, beispielsweise eines Kranes, eingebrachten Transportpfanne 5 im Gehäuse 4 zu gewährleisten, befinden sich am Boden des Gehäuses 4 Zentriervorrichtungen 28. Zum Einbringen des Transportgefässes 5 wird der verfahrbare Oberteil 8 so weit vom metallurgischen Gefäss 3 weg verfahren, bis der ortsfeste Unterteil 7 des Gehäuses 4 frei zugänglich ist. Dies ist in Fig. 2 mit strichlierten Linien dargestellt.In order to ensure the correct positioning of the transport pan 5 in the housing 4, which is introduced by means of a lifting tool, for example a crane, there are 4 centering devices 28 on the bottom of the housing. The movable upper part 8 is moved as far away from the metallurgical vessel 3 to introduce the transport vessel 5 until the stationary lower part 7 of the housing 4 is freely accessible. This is shown in Fig. 2 with dashed lines.

Je nach Erfordernis kann die Transportpfanne 5 mit einer Ausgusschnauze 29 versehen sein. Ist dies der Fall, ist es erforderlich, den ortsfesten Unterteil 7 und den verfahrbaren Oberteil 8 an der dem metallurgischen Gefäss 3 zugewandten Seite, wie aus Fig. 4 ersichtlich ist, der Ausgussschnauze anzupassen.Depending on the requirements, the transport pan 5 can be provided with a pouring spout 29. If this is the case, it is necessary to adapt the fixed lower part 7 and the movable upper part 8 to the pouring spout on the side facing the metallurgical vessel 3, as can be seen from FIG. 4.

Bei der in den Fig. 6 und 7 dargestellten Ausführungsform des Füllstandes ist das gesamte Gehäuse 4', also sein Ober- 8' und Unterteil 7' in einer Fundamentgrube 6' in der Kippebene 11 des kippbaren metallurgischen Gefässes 3 verfahrbar. Die die Eingiessöffnung 12' tragende Decke 30 des Gehäuses 4' ist zum Zweck des ein-und Ausbringens der Transportpfanne 5 in die in Fig. 6 strich-punktiert dargestellte Stellung schwenkbar. Die Anschlüsse an die Absaugleitungen sowie der Antrieb des Gehäuses 4' sind analog zu der in den Fig. 1 bis 5 dargestellten Ausführungsform ausgebildet.In the embodiment of the fill level shown in FIGS. 6 and 7, the entire housing 4 ', that is to say its upper part 8' and lower part 7 ', can be moved in a foundation pit 6' in the tilting plane 11 of the tiltable metallurgical vessel 3. The cover 30 of the housing 4 'carrying the pouring opening 12' can be pivoted into the position shown in dash-dotted lines in FIG. 6 for the purpose of bringing the transport pan 5 in and out. The connections to the suction line lines and the drive of the housing 4 ' are formed analogously to the embodiment shown in FIGS. 1 to 5.

Der erfindungsgemässe Füllstand ist überall verwendbar, wo flüssiges Metall aus kippbaren metallurgischen Gefässen in abgestellte, also nicht an einem Hebezeug hängende Transportgefässe umgefüllt wird, wie beispielsweise beim Umfüllen von Roheisen aus einem stationär angeordneten oder einem verfahrbaren Mischer, beim Abstich von SM-Öfen, Elektro-Lichtbögen- öfen und LD-Tiegeln, beim Abstich von Induktionsöfen für die Eisen- und Nichteisenmetallurgie und dergleichen mehr.The fill level according to the invention can be used wherever liquid metal is poured from tiltable metallurgical vessels into parked, i.e. not hanging from a hoist, such as when transferring pig iron from a stationary or a movable mixer, when tapping SM furnaces, electrical Arc furnaces and LD crucibles, for tapping induction furnaces for iron and non-ferrous metallurgy and the like.

Claims (10)

1. Filling stand for pouring molten metal from a tiltable metallurgical vessel (3) into a metallurgical ladle (5), in particular for pouring molten pig iron from a pig iron mixer into a transporting ia- dle, the metallurgical ladle being surrounded by a casing (4, 4') to which at least one exhaust conduit (16) is connected and in whose upper part (8, 8') a pour-in opening (12, 12') for the molten metal arranged below an outlet (1) of the tiltable vessel (3) is provided, characterized in that at least a part of the ladle-(5)-surrounding casing (4, 4') which comprises the pour-in opening (12, 12') is displaceable in the tilting plane (11) of the tiltable vessel (3) in accordance with the change of position of the metal jet (17) flowing out of the outlet (1) of the tiltable vessel (3).
2. Filling stand according to claim 1, characterized in that the upper part (8) of the casing (4) is displaceable in the horizontal direction relative to the stationarily arranged lower part (7) of the casing.
3. Filling stand according to claim 2, characterized in that the upper part (8) of the casing (4) is designed as a horizontal ceiling covering a base pit (6), the casing lower part (7) being arranged in the base pit (6).
4. Filling stand according to claim 2 or 3, characterized in that the displaceable upper part (8) comprises side wall parts (20, 22) following upon the ceiling, and that, on at least one of its side wall parts (20), an exhaust opening (13) is arranged into which the exhaust conduit (16) enters.
5. Filling stand according to claims 2 to 4, characterized in that side walls (23) of the lower part (7) of the casing (4), arranged transversely to the displacement direction, are designed to be reinforced in a flange-like manner in the displacement direction of the upper part (8).
6. Filling stand according to claims 2 to 5, characterized in that side wall parts (20) of the upper part (8), arranged in the displacement direction, are sealed relative to the lower part (7) of the casing (4) by means of sealing ledges, preferably by means of L-shaped sealing ledges (21) engaging in a recess of the respective side walls of the lower part of the casing.
7. Filling stand according to claims 2 to 6, characterized in that each of the side wall parts (20) arranged in the displacement direction of the upper part (8) is provided with one exhaust opening (13) allocated to one exhaust conduit (16) each.
8. Filling stand according to claims 1 to 7, characterized in that centering means (28) for securing the position of the metallurgical ladle (5) are provided on the bottom of the casing (4,4').
9. Filling stand according to claims 1 to 8, characterized in that the exhaust opening (13), on the outer side of the casing (4,4'), is provided with a, preferably oval, flange (25) extending in the displacement direction of the upper part (8, 8'), upon which the exhaust conduit (16) follows with a transition part (15) designed to be widened in the displacement direction of the upper part (8, 8').
10. Filling stand according to claim 1, characterized in that the pivotable ceiling (30) of the upper part (8') of the casing (4') comprising the pour-in opening (12) is connected with the lower part (7') of the casing (4') and displaceable together with the lower part of the casing (4').
EP80890085A 1979-08-09 1980-07-25 Filling post for reladling liquid metal out of a tiltable metallurgical vessel Expired EP0025027B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT5430/79 1979-08-09
AT543079A AT361957B (en) 1979-08-09 1979-08-09 LEVEL FOR REFILLING LIQUID METAL FROM A TILTABLE METALLURGICAL VESSEL

Publications (2)

Publication Number Publication Date
EP0025027A1 EP0025027A1 (en) 1981-03-11
EP0025027B1 true EP0025027B1 (en) 1982-12-01

Family

ID=3575716

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80890085A Expired EP0025027B1 (en) 1979-08-09 1980-07-25 Filling post for reladling liquid metal out of a tiltable metallurgical vessel

Country Status (5)

Country Link
US (1) US4345747A (en)
EP (1) EP0025027B1 (en)
JP (1) JPS5626670A (en)
AT (1) AT361957B (en)
DE (1) DE3061220D1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3828962A1 (en) * 1988-08-26 1990-03-15 Mannesmann Ag STEEL PLANT WITH A METALLURGICAL OVEN AND A PROCESSING PLANT
DE4229764C2 (en) * 1992-09-05 2000-08-10 Ald Vacuum Techn Ag Closed induction furnace for melting and pouring fabrics
US5459358A (en) * 1992-11-24 1995-10-17 Hubbell Incorporated Method and apparatus for randomly delayed activation of electrical loads
US10239114B2 (en) 2016-01-29 2019-03-26 Honda Motor Co., Ltd. Systems and methods for transporting material

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1712287A (en) * 1928-08-09 1929-05-07 Pennsylvania Engineering Compa Metal-handling apparatus
BE759045A (en) * 1969-11-17 1971-05-17 Koninklijke Hoogovens En Staal TRANSFER DEVICE
NL165502C (en) * 1971-11-17 1981-04-15 Hoogovens Ijmuiden Bv STEEL FACTORY WITH TILT STEEL CONVERTERS.
JPS4926811U (en) * 1972-06-13 1974-03-07
US3791638A (en) * 1972-11-08 1974-02-12 Armco Steel Corp Metal pouring organization
JPS50128632A (en) * 1974-03-30 1975-10-09
JPS5147415A (en) * 1974-10-22 1976-04-23 Sony Corp

Also Published As

Publication number Publication date
EP0025027A1 (en) 1981-03-11
DE3061220D1 (en) 1983-01-05
ATA543079A (en) 1980-09-15
US4345747A (en) 1982-08-24
AT361957B (en) 1981-04-10
JPS5626670A (en) 1981-03-14

Similar Documents

Publication Publication Date Title
EP1862559B1 (en) Hoisting unit for steel processing pans in RH plants
DE2902096C2 (en)
DE2919880A1 (en) PIPE
WO2000060297A1 (en) Metallurgical vessel comprising a tapping device and method for the controlled, slag-free extraction of molten metal from said vessel
DE8231869U1 (en) Tiltable arc furnace
DE1916775A1 (en) Process and installation for treating, in particular for vacuum refining, molten metals
DE2233443A1 (en) CONVERTER VESSEL WITH AN OPENING FOR METAL RECEPTION IN A CHAMBER PRACTICALLY COMPLETELY ENCLOSING THE VESSEL AND OPERATING PROCEDURE FOR IT
DE2933989A1 (en) DEVICE FOR DRAINING METAL MELT AND SLAG REMAINING IN AN INTERMEDIATE CONTAINER
EP0025027B1 (en) Filling post for reladling liquid metal out of a tiltable metallurgical vessel
WO1999000205A1 (en) Method and device for controlling the movement of a teeming ladle having a low teeming height in a teeming installation
DE2124747A1 (en) Device for controlling a plug of a casting container
DE3000730A1 (en) DEVICE FOR SEPARATING SLAG FROM A MOLTING BATH
DE3412077C2 (en)
EP0470223A1 (en) Metallurgical unit
EP0216187B1 (en) Metallurgical-furnace vessel, in particular of an arc furnace
DE2848890C2 (en) Melt treatment plant with a tiltable treatment vessel, in particular for the production of iron-carbon cast materials with spheroidal graphite
DE3327671C2 (en) Device for largely slag-free tapping of molten metal, in particular molten steel, from metallurgical vessels
EP0153552B1 (en) Plant comprising a refractory-lined metallurgical vessel
EP0760395B1 (en) Installation for the liquid metal transportation in the casthouse of a shaft furnace and process for handling this installation
DE1207554B (en) Flutterless induction crucible furnace, optionally tiltable around two different tilting axes
EP0006084B1 (en) Apparatus for collecting and withdrawing off-gases
DE2506704C3 (en) Metal smelting plant with a treatment stand for setting the analysis of metal melts, in particular for the desulfurization of liquid pig iron or liquid crude steel
DE3818000C2 (en) Plant for the treatment of molten metals
DE4418145C2 (en) Solid pipe
EP0355725A2 (en) Steel making plant with a metallurgical furnace and a subsequent processing installation

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE DE GB LU SE

17P Request for examination filed

Effective date: 19810514

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): BE DE GB LU SE

REF Corresponds to:

Ref document number: 3061220

Country of ref document: DE

Date of ref document: 19830105

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

Ref country code: LU

Payment date: 19830615

Year of fee payment: 4

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

Ref country code: LU

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

Effective date: 19830731

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

Ref country code: BE

Payment date: 19840630

Year of fee payment: 5

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

Ref country code: SE

Payment date: 19840930

Year of fee payment: 5

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

Ref country code: SE

Effective date: 19880726

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

Ref country code: BE

Effective date: 19880731

BERE Be: lapsed

Owner name: VOEST-ALPINE A.G.

Effective date: 19880731

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732

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

Ref country code: DE

Payment date: 19930614

Year of fee payment: 14

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

Ref country code: GB

Payment date: 19930616

Year of fee payment: 14

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

Ref country code: GB

Effective date: 19940725

EUG Se: european patent has lapsed

Ref document number: 80890085.6

Effective date: 19890510

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

Effective date: 19940725

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

Ref country code: DE

Effective date: 19950401

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

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