EP0056942A2 - Installation for the holding and changing of immersion lances - Google Patents

Installation for the holding and changing of immersion lances Download PDF

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Publication number
EP0056942A2
EP0056942A2 EP82100132A EP82100132A EP0056942A2 EP 0056942 A2 EP0056942 A2 EP 0056942A2 EP 82100132 A EP82100132 A EP 82100132A EP 82100132 A EP82100132 A EP 82100132A EP 0056942 A2 EP0056942 A2 EP 0056942A2
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EP
European Patent Office
Prior art keywords
lance
linkage
diving
gripper
changing
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
EP82100132A
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German (de)
French (fr)
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EP0056942A3 (en
EP0056942B1 (en
Inventor
Léon Ulveling
Pierre Mailliet
Gilbert Bernard
Nico Reiffers
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Paul Wurth SA
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Paul Wurth SA
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Priority to AT82100132T priority Critical patent/ATE16024T1/en
Publication of EP0056942A2 publication Critical patent/EP0056942A2/en
Publication of EP0056942A3 publication Critical patent/EP0056942A3/en
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Publication of EP0056942B1 publication Critical patent/EP0056942B1/en
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    • 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
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4606—Lances or injectors
    • C21C5/462—Means for handling, e.g. adjusting, changing, coupling
    • 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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/02—Dephosphorising or desulfurising
    • 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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0037—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 by injecting powdered material

Definitions

  • the invention relates to a device for holding and changing lances, in particular immersion lances, via which powdered or granular substances are introduced into the molten steel with the aid of a carrier gas.
  • T he powdered or granular products are introduced in metered quantities by means of an immersion lance and carrier gas, preferably argon into the melt.
  • the object of the present invention is to propose a device which is able to hold a diving lance in a simple manner and to prevent it from falling out, and which, if appropriate, allows an automatic change.
  • the device according to the invention is characterized by a pivotable gripper arm connected via a linkage to a drive, and a plug-in and sealing device loaded by springs, the gripper arm, the linkage and the drive, as well as the plug-in and sealing device on a common one Base plate are attached.
  • the drive consists of a hydraulically operated cylinder.
  • the linkage itself is designed to describe curves that cross an imaginary line during the dipping lance insertion or sealing process, whereby the diving lance is automatically locked by the spring assembly, even if the hydraulic pressure fails.
  • Another unit of the device according to the invention consists of a diving lance holder which is adapted to the holding device and which allows the diving lance to be changed without any problems and without manual intervention.
  • the immersion lance quiver comprises a quiver which is arranged centrally on a turntable and has the required holders for the immersion lances.
  • the quiver itself can be removed as a complete unit together with the diving lances attached to it with a crane and exchanged for another.
  • the rotary table has an upward-tapering royal column, which ensures that the quiver is automatically centered on the rotary table.
  • FIG. 1 shows an immersion lance 1 which, at its upper end, comprises a tube (2) which, at a certain distance from one another, has a pair of nozzles 3 and 4 offset by 180 °.
  • the nozzles 3 and 4 are preferably formed by round rods or thick-walled tubes, and are connected to the tube 2 in solidarity.
  • the tube 2 can be connected to the immersion lance 1 in various ways, for example by screwing or flange.
  • a seal 5 which in the preferred embodiment consists of soft material, for example an O-ring made of Viton.
  • an arm 6 of a lance quiver are clearly displayed, wherein the immersion lance 2 receives via the two to 180 0 staggered nozzles. 4
  • a holder 7 is attached which is connected to a guide device which e.g. in the aforementioned Patent 33090 of January 26, 1981.
  • a gripper 8 is rotatably mounted on the holder 7 via an axis 9.
  • the gripper 8 is moved about the axis 9 via a linkage 10 and 11 and a hydraulic cylinder 12.
  • the cylinder 12 and the linkage 10 and 11 are rotatably mounted on the bracket 7 via axes 13 and 14, respectively.
  • the linkage 10 and 11 is connected to one another via a further axis 15, the rod 11 being opposite to the axis 15 on its side set end is connected via an axis of rotation 17 to the piston rod of the cylinder 12 and the rod 10 is connected at its end opposite the axis 15 via a further axis 16 to the gripper 8.
  • the rod 11 can preferably also be designed as a triangle, as can be seen in FIGS. 1 a, 1 b, 1 c.
  • a sealing device 18 is attached to the holder 7, which essentially comprises a pneumatic delivery line 19 fastened by screwing, a collecting funnel 20 provided for the tube 2, a spring assembly 21, and a spherical support surface 22 of the tube 2.
  • FIGS. 1b and 1c The mode of operation of the device according to the invention can be seen from FIGS. 1b and 1c.
  • the piston rod of the cylinder (12) is extended. This movement is passed on to the gripper 8 via the linkage 10 and 11 and via the axes of rotation 14, 15, 16 and 17.
  • the gripper 8 turns about its axis 9 and engaged with the tube 2 via the two to 180 0 offset connector 3 in contact and lifts the tube 2 with the immersion lance 1 of the immersion lance support 6.
  • the tube 2 is on the seal 5 in contact with the support surface 22.
  • Another essential feature of the device according to the invention is that when the cylinder 12 is extended, the axis 15 crosses the imaginary line between the axes 14 and 16. This ensures that the dead center of the system is overcut, ie automatic self-locking of the gripper 8 is ensured.
  • the self-locking system can only be unlocked via the cylinder 12. This is of great advantage, since the cylinder 12 is only required for moving the gripper 8 and the sealing is carried out by the system as described above during the operation of the immersion lance 1.
  • the embodiment according to the invention is particularly advantageous if the cylinder 12 fails during blowing.
  • the gripper 8 on the other hand the supports 3 and 4 and the immersion lance holder 6 are designed in such a way that when the gripper 8 is open (FIG. 1 a) the immersion lance holder 6 rotates and when the gripper 8 is closed (FIG. 1 c) Moving the entire sealing device 18 with the immersion lance 1 is guaranteed.
  • FIG. 2 shows the side view of a preferred embodiment of a submersible lance quiver on a centrally arranged rotary table 23 which is rotated via an electric motor 24 and a gear 25.
  • the turntable 23 comprises a vertical, upwardly conical king column 26 for receiving the diving lance quiver.
  • the submersible lance holder mainly consists of a central tree 27 which understands a certain number of lance holders 6a, 6b, into which submersible lances la, lb are suspended via the connecting pieces 4a, 4b.
  • An eyelet 28 is also provided for receiving a crane hook (see FIG. 3). So that the diving lances la, lb remain in a vertical position during transportation, holders 29a, 29b are provided, into which the diving lances la, lb are inserted at their lower end.
  • the central tree 27 has a conical attachment 30, which automatically ensures centering together with the royal column 26.
  • the diving lance holder is rotated so that the diving lances la, lb are always brought into a certain position. In a preferred embodiment this can be done e.g. Limit switches can be reached. Furthermore, the rotation of the plate 23 can be achieved with the aid of a cylinder.
  • Figure 3 shows the entire immersion lance holder in the removed position, e.g. to replace used diving lances at a point away from the desulfurization system.
  • FIG 4 a plan view is schematically shown during the diving lance change. It can be seen here that the immersion lance holder 7, arranged rotatably on a bracket 33 via a holding arm 31, is moved in or out tangentially into the immersion lance holder 27. Furthermore, among other things, the steel pan 34 and the rigid piping 32 with swivel joints of the pneumatic transport can be seen.
  • a sliding quiver can also be used in which the lances are hung in rows next to each other.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Adornments (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Furnace Details (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)

Abstract

1. Apparatus for holding and changing an immersion lance which may be connected to a supply pipe (19) by means of a spring loaded sealing and insertion device (18), characterized by a gripping arm (8) rotatable about a shaft (9) and connected to a drive (12) via linkage (10, 11), said gripping arm (8) being self-locking in the operating position, wherein the arm (8), the linkage (10, 11) and the sealing and insertion device (18) are mounted on a common base plate (7).

Description

Die Erfindung betrifft eine Vorrichtung zur Halterung und zum Wechseln von Lanzen, insbesondere von Tauchlanzen über welche pulver-oder granulatförmige Substanzen mit Hilfe eines Trägergases in die Stahlschmelze eingebracht werden.The invention relates to a device for holding and changing lances, in particular immersion lances, via which powdered or granular substances are introduced into the molten steel with the aid of a carrier gas.

Es ist seit Jahrzehnten bekannt, Eisenschmelzen dadurch zu entschwefeln, dass Substanzen beigesetzt werden, die in der Lage sind, bei hohen Temperaturen und unter reduzierenden Bedingungen mit dem in den Schmelzen enthaltenen Schwefel Verbindungen einzugehen.Die pulver- bzw. granulatförmigen Produkte werden in dosierten Mengen mittels einer Tauchlanze und Trägergas, vorzugsweise Argon in die Schmelze eingebracht.It has been known for decades to desulfurize iron melts by adding substances that are able to form compounds with the sulfur contained in the melts at high temperatures and under reducing conditions. T he powdered or granular products are introduced in metered quantities by means of an immersion lance and carrier gas, preferably argon into the melt.

Ein solches Verfahren und eine Vorrichtung zum Dosieren werden beispielsweise in den beiden luxemburgischen Patenten Nr 80.692 vom 2.12.1978 und 82.977 vom 3.12.1980 beschrieben. Eine neuartige Anlage zum Einbringen von Substanzen in die Schmelze wird ausserdem im luxemburgischen Patent 83.090 vom 26.1. 1981 beschrieben.Such a method and a device for dosing are described, for example, in the two Luxembourg patents no. 80,692 dated December 2, 1978 and 82,977 dated December 3, 1980. A novel system for introducing substances into the melt is also described in Luxembourg patent 83,090 from January 26. 1981 described.

Jedoch ist an den bekannten Anlagen ein Problem unzulänglich gelöst, und zwar die Befestigung und das Wechseln der Tauchlanzen. An diesen Anlagen werden die Tauchlanzen auf umständliche Weise von Hand gewechselt oder umfassen eine unzumutbar aufwendige Befestigungs- und Wechseleinrichtung, welche ebenfalls grosse Anforderungen an den Erhaltungsbetrieb stellt.However, a problem is inadequately solved in the known systems, namely the attachment and changing of the diving lances. On these systems, the diving lances are laboriously changed by hand or comprise an unreasonably complex fastening and changing device, which also places great demands on the maintenance company.

Die_Aufgabe der vorliegenden Erfindung besteht darin, eine Einrichtung vorzuschlagen, welche in der Lage ist eine Tauchlanze auf einfache Weise zu halten und gegen ein Herausfallen zu sichern, sowie gegebenenfalls ein automatisches Wechseln erlaubt.The object of the present invention is to propose a device which is able to hold a diving lance in a simple manner and to prevent it from falling out, and which, if appropriate, allows an automatic change.

Zur Lösung dieser Aufgabe ist die erfindungsgemässe Vorrichtung gekennzeichnet durch einen über ein Gestänge mit einem Antrieb verbundenen schwenkbaren Greiferarm, sowie eine über Federn belastete Einsteck- und Abdichteinrichtung, wobei der Greiferarm, das Gestänge und der Antrieb, sowie die Einsteck- und Abdichteinrichtung auf einer gemeinsamen Grundplatte angebracht sind.To achieve this object, the device according to the invention is characterized by a pivotable gripper arm connected via a linkage to a drive, and a plug-in and sealing device loaded by springs, the gripper arm, the linkage and the drive, as well as the plug-in and sealing device on a common one Base plate are attached.

Der Antrieb besteht aus einem hydraulisch betätigten Zylinder.The drive consists of a hydraulically operated cylinder.

Das Gestänge selbst ist so ausgebildet, dass es während dem Taucnlanzen-Einsteck- bzw. Abdichtvorgang Kurven beschreibt, die eine gedachte Linie überschreiten, wodurch die Tauchlanze automatisch verriegelt wird vom Federpaket, und dies selbst im Falle eines Ausfalls des Hydraulikdruckes.The linkage itself is designed to describe curves that cross an imaginary line during the dipping lance insertion or sealing process, whereby the diving lance is automatically locked by the spring assembly, even if the hydraulic pressure fails.

Eine weitere Einheit der erfindungsgemässen Vorrichtung besteht in einem der Haltevorrichtung angepassten Tauchlanzenköcher, welcher ein einwandfreies, ohne manuellen Eingriff ablaufendes Wechseln der Tauchlanze erlaubt.Another unit of the device according to the invention consists of a diving lance holder which is adapted to the holding device and which allows the diving lance to be changed without any problems and without manual intervention.

In einer bevorzugten Ausführung umfasst der Tauchlanzenköcher einen zentral auf einem Drehtisch angeordneten Köcher mit den erforderlichen Halterungen für die Tauchlanzen. Der Köcher selbst kann als komplette Einheit mitsamt den hieran aufgehängten Tauchlanzen mit einem Kran abgenommen und gegen einen anderen ausgetauscht werden. Hierzu besitzt der Drehtisch eine nach oben konisch verlaufende Königssäule, welche eine automatische Zentrierung des Köchers auf dem Drehtisch gewährleistet.In a preferred embodiment, the immersion lance quiver comprises a quiver which is arranged centrally on a turntable and has the required holders for the immersion lances. The quiver itself can be removed as a complete unit together with the diving lances attached to it with a crane and exchanged for another. For this purpose, the rotary table has an upward-tapering royal column, which ensures that the quiver is automatically centered on the rotary table.

Die Erfindung wird im folgenden an Hand der beigefügten Zeichnungen näher erläutert. Es zeigen:

  • Figur la, eine bevorzugte Ausführung der erfindungs gemässen Vorrichtung in geöffneter, d.h. Ruhestellung;
  • Figur lb, die Vorrichtung beim Ergreifen der Tauchlanze;
  • Figur lc, die Vorrichtung in geschlossener, d.h. Arbeitsstellung;
  • Figur 2, eine bevorzugte Ausführungsform des Tauchlanzen-Köchers in Arbeitsstellung;
  • Figur 3, den Tauchlanzenköcher selbst;
  • Figur 4, eine Draufsicht der erfindungsgemässen Vorrichtung und des Lanzenköchers.
The invention is explained below with reference to the accompanying drawings. Show it:
  • Figure la, a preferred embodiment of the device according to the Invention in the open, ie rest position;
  • Figure lb, the device when gripping the diving lance;
  • Figure lc, the device in the closed, ie working position;
  • Figure 2, a preferred embodiment of the diving lance quiver in the working position;
  • Figure 3, the diving lance quiver itself;
  • Figure 4 is a plan view of the device according to the invention and the lance holder.

In Figur 1 ist eine Tauchlanze 1 dargestellt, welche an ihrem oberen Ende ein Rohr (2) umfasst, welches in einem gewissen Abstand voneinander jeweils ein Paar um 180° versetzte Stutzen 3 und 4 besitzt. Vorzugsweise werden die Stutzen 3 und 4 von Rundstäben bzw. dickwandigen Rohren gebildet, und sind solidarisch mit dem Rohr 2 verbunden. Das Rohr 2 kann in verschiedener Art und Weise mit der Tauchlanze 1 verbunden sein, so z.B. durch Verschraubung bzw. Flansch. Am Abschluss des Rohres 2 befindet sich eine Dichtung 5, welche im bevorzugten Ausführungsbeispiel aus Weichmaterial, so z.B. einem O-Ring aus Viton besteht. Desweiteren ist ein Arm 6 eines Lanzenköchers ersichtbar, welcher die Tauchlanze 2 über die beiden, um 1800 versetzten Stutzen 4 aufnimmt.FIG. 1 shows an immersion lance 1 which, at its upper end, comprises a tube (2) which, at a certain distance from one another, has a pair of nozzles 3 and 4 offset by 180 °. The nozzles 3 and 4 are preferably formed by round rods or thick-walled tubes, and are connected to the tube 2 in solidarity. The tube 2 can be connected to the immersion lance 1 in various ways, for example by screwing or flange. At the end of the tube 2 there is a seal 5, which in the preferred embodiment consists of soft material, for example an O-ring made of Viton. Furthermore, an arm 6 of a lance quiver are clearly displayed, wherein the immersion lance 2 receives via the two to 180 0 staggered nozzles. 4

In dem vorliegenden Beispiel der erfindungsgemässen Vorrichtung ist eine Halterung 7 angebracht, welche mit einer Führungseinrichtung verbunden ist, welche z.B. in dem vorerwähnten Patent 33090 vom 26. Januar 1981 beschrieben ist.In the present example of the device according to the invention, a holder 7 is attached which is connected to a guide device which e.g. in the aforementioned Patent 33090 of January 26, 1981.

An der Halterung 7 ist ein Greifer 8 über eine Achse 9 drehbar angebracht. Der Greifer 8 wird um die Achse 9 über ein Gestänge 10 und 11, sowie einen Hydraulikzylinder 12 bewegt. Der Zylinder 12 bzw. das Gestänge 10 und 11 sind an der Halterung 7 über Achsen 13 bzw. 14 drehbar gelagert. Das Gestänge 10 und 11 ist über eine weitere Achse 15 miteinander verbunden, wobei die Stange 11 an ihrem der Achse 15 entgegengesetzten Ende über eine Drehachse 17 mit der Kolbenstange des Zylinders 12 und die Stange 10 an ihrem, der Achse 15 entgegengesetzten Ende über eine weitere Achse 16 mit dem Greifer 8 verbunden ist. Es sei noch hervorgehoben, dass die Stange 11 vorzugsweise ebenfalls als Dreieck, so wie in den Figuren la, lb, lc ersichtlich, ausgebildet sein kann.A gripper 8 is rotatably mounted on the holder 7 via an axis 9. The gripper 8 is moved about the axis 9 via a linkage 10 and 11 and a hydraulic cylinder 12. The cylinder 12 and the linkage 10 and 11 are rotatably mounted on the bracket 7 via axes 13 and 14, respectively. The linkage 10 and 11 is connected to one another via a further axis 15, the rod 11 being opposite to the axis 15 on its side set end is connected via an axis of rotation 17 to the piston rod of the cylinder 12 and the rod 10 is connected at its end opposite the axis 15 via a further axis 16 to the gripper 8. It should also be emphasized that the rod 11 can preferably also be designed as a triangle, as can be seen in FIGS. 1 a, 1 b, 1 c.

Desweiteren ist an der Halterung 7 eine Abdichtvorrichtung 18 angebracht, welche als wesentliche Bestandteile eine über Verschraubung befestigte pneumatische Förderleitung 19, einen für das Rohr 2 vorgesehenen Auffangtrichter 20, ein Federpaket 21, sowie eine kalottenförmige Abstützfläche 22 des Rohres 2 umfasst.Furthermore, a sealing device 18 is attached to the holder 7, which essentially comprises a pneumatic delivery line 19 fastened by screwing, a collecting funnel 20 provided for the tube 2, a spring assembly 21, and a spherical support surface 22 of the tube 2.

Die Arbeitsweise der erfindungsgemässen Vorrichtung ist aus den Figuren lb und lc ersichtlich.The mode of operation of the device according to the invention can be seen from FIGS. 1b and 1c.

Zum Befestigen der Tauchlanze 1 an der Tauchlanzen-Führungskonstruktion wird die Kolbenstange des Zylinders (12) ausgefahren. Ueber das Gestänge 10 und 11 und über die Drehachsen 14, 15, 16 und 17 wird diese Bewegung an den Greifer 8 weitergeleitet. Hierbei dreht sich der Greifer 8 um seine Drehachse 9 und gelangt mit dem Rohr 2 über die beiden, um 1800 versetzten Stutzen 3 in Berührung und hebt das Rohr 2 mit der Tauchlanze 1 aus der Tauchlanzenhalterung 6. Das Rohr 2 kommt über die Dichtung 5 mit der Abstützfläche 22 in Berührung. Beim weiteren Ausführen der Kolbenstange des Zylinders 12 wird nun das Federpaket 21 zusammengepresst und gewährleistet einen absolut sicheren Kontakt zwischen der Dichtung 5 und der Abstützfläche 22, was benötigt wird für den pneumatischen Transport.To attach the immersion lance 1 to the immersion lance guide construction, the piston rod of the cylinder (12) is extended. This movement is passed on to the gripper 8 via the linkage 10 and 11 and via the axes of rotation 14, 15, 16 and 17. Here, the gripper 8 turns about its axis 9 and engaged with the tube 2 via the two to 180 0 offset connector 3 in contact and lifts the tube 2 with the immersion lance 1 of the immersion lance support 6. The tube 2 is on the seal 5 in contact with the support surface 22. When the piston rod of the cylinder 12 is carried out further, the spring assembly 21 is now compressed and ensures absolutely reliable contact between the seal 5 and the support surface 22, which is required for the pneumatic transport.

Ein weiteres, wesentliches Merkmal der erfindungsgemässen Vorrichtung besteht darin, dass während dem Ausfahren des Zylinders 12 die Achse 15 die gedachte Linie zwischen den Achsen 14 und 16 überschreitet. Hierdurch wird erreicht, dass der Totpunkt des Systems überscnritten wird, d.h. eine automatische Selbstverriegelung des Greifers 8 ist gewährleistet. Das selbstverriegelnde System kann nur mehr über den Zylinder 12 entriegelt werden. Dies ist von sehr grossem Vorteil, da der Zylinder 12 allein für das Verfahren des Greifers 8 benötigt wird und die Abdichtung während des Arbeitsvorganges der Tauchlanze 1 vom wie oben beschriebenen System übernommen wird.Vor allem vorteilhaft ist die erfindungsgemässe Ausführung bei Ausfall des Zylinders 12 während dem Einblasen.Another essential feature of the device according to the invention is that when the cylinder 12 is extended, the axis 15 crosses the imaginary line between the axes 14 and 16. This ensures that the dead center of the system is overcut, ie automatic self-locking of the gripper 8 is ensured. The self-locking system can only be unlocked via the cylinder 12. This is of great advantage, since the cylinder 12 is only required for moving the gripper 8 and the sealing is carried out by the system as described above during the operation of the immersion lance 1. The embodiment according to the invention is particularly advantageous if the cylinder 12 fails during blowing.

Es sei noch hervorgehoben, dass einerseits der Greifer 8, andererseits die Stützen 3 und 4 und die Tauchlanzenhalterung 6 so gegeneinander ausgelegt sind, dass bei geöffnetem Greifer 8 (Figur la) ein Drehen der Tauchlanzenhalterung 6 und bei geschlossenem Greifer 8 (Figur lc) ein Verschieben der gesamten Abdichtvorrichtung 18 mit der Tauchlanze 1 gewährleistet ist.It should also be emphasized that on the one hand the gripper 8, on the other hand the supports 3 and 4 and the immersion lance holder 6 are designed in such a way that when the gripper 8 is open (FIG. 1 a) the immersion lance holder 6 rotates and when the gripper 8 is closed (FIG. 1 c) Moving the entire sealing device 18 with the immersion lance 1 is guaranteed.

Figur 2 zeigt die Seitenansicht einer bevorzugten Ausführung eines Tauchlanzen-Köchers auf einem zentral angeordneten Drehtisch 23, welcher über einen Elektromotor 24 sowie ein Getriebe 25 gedreht wird.FIG. 2 shows the side view of a preferred embodiment of a submersible lance quiver on a centrally arranged rotary table 23 which is rotated via an electric motor 24 and a gear 25.

Der Drehtisch 23 umfasst eine vertikale, nach oben leicnt konisch ausgebildete Königssäule 26 zur Aufnahme des Tauchlanzen-Köchers. Der Tauchlanzenköcher besteht nauptsächlich aus einem zentralen Baum 27, welcher eine gewisse Anzahl Lanzenhalterungen 6a, 6b begreift, in welche Tauchlanzen la, lb eingehängt sind über die Stutzen 4a, 4b. Vorgesehen ist desweiteren eine Oese 28 zur Aufnahme eines Kranhakens (siehe Figur 3). Damit während dem Transport die Tauchlanzen la, lb in einer vertikalen Lage verbleiben, sind Halterungen 29a, 29b vorgesehen, in welche die Tauchlanzen la, lb eingeführt sind an ihrem unteren Ende.The turntable 23 comprises a vertical, upwardly conical king column 26 for receiving the diving lance quiver. The submersible lance holder mainly consists of a central tree 27 which understands a certain number of lance holders 6a, 6b, into which submersible lances la, lb are suspended via the connecting pieces 4a, 4b. An eyelet 28 is also provided for receiving a crane hook (see FIG. 3). So that the diving lances la, lb remain in a vertical position during transportation, holders 29a, 29b are provided, into which the diving lances la, lb are inserted at their lower end.

Der zentrale Baum 27 besitzt einen konischen Aufsetzer 30, welcher zusammen mit der Königssäule 26 automatisch eine Zentrierung gewährleistet.The central tree 27 has a conical attachment 30, which automatically ensures centering together with the royal column 26.

Gedreht wird die Tauchlanzenhalterung so, dass die Tauchlanzen la, lb stets in eine bestimmte Position gebracht werden. Dies kann in einer bevorzugten Ausführungsform über z.B. Endschalter erreicht werden. Desweiteren kann das Drehen des Tellers 23 mit Hilfe eines Zylinders erreicht werden.The diving lance holder is rotated so that the diving lances la, lb are always brought into a certain position. In a preferred embodiment this can be done e.g. Limit switches can be reached. Furthermore, the rotation of the plate 23 can be achieved with the aid of a cylinder.

Figur 3 zeigt die gesamte Tauchlanzenhalterung in ausgebauter Lage, so z.B. zum Auswechseln von gebrauchten Tauchlanzen an einem von der Entschwefelungsanlage entfernten Punkt.Figure 3 shows the entire immersion lance holder in the removed position, e.g. to replace used diving lances at a point away from the desulfurization system.

In Figur 4 ist schematisch eine Drausicht während dem Tauchlanzenwechsel dargestellt. Hierbei ist ersichtlich, dass die Tauchlanzenhalterung 7, über einen Haltearm 31 drehbar an einer Konsole 33 angeordnet, tangential in den Tauchlanzenköcher 27 ein- bzw. ausgefahren wird. Desweiteren sind unter anderem die Stahlpfanne 34 sowie die starre Verrohrung 32 mit Drehgelenken des pneumatischen Transportes ersichtlich.In Figure 4, a plan view is schematically shown during the diving lance change. It can be seen here that the immersion lance holder 7, arranged rotatably on a bracket 33 via a holding arm 31, is moved in or out tangentially into the immersion lance holder 27. Furthermore, among other things, the steel pan 34 and the rigid piping 32 with swivel joints of the pneumatic transport can be seen.

Anstatt einen runden drenbaren Köcher vorzusehen kann aucn ein verschiebbarer Köcher verwendet werden in welchem die Lanzen reihenmässig nebeneinander aufgehängt sind.Instead of providing a round drivable quiver, a sliding quiver can also be used in which the lances are hung in rows next to each other.

Claims (5)

1. Vorrichtung zur Halterung und zum Wechseln einer Tauchlanze, gekennzeichnet durch einen über ein Gestänge mit einem Antrieb (12) verbundenen schwenkbaren Greiferarm (8), sowie eine über Federn (21) belastete Einsteck- und Abdichteinrichtung (18), wobei der Greiferarm (8), das Gestänge (10) und (11) sowie die Einsteck-und Abdichteinrichtung (18) auf einer gemeinsamen Grundplatte (7) angebracht sind.1. Device for holding and changing a diving lance, characterized by a pivotable gripper arm (8) connected via a linkage with a drive (12), and a plug-in and sealing device (18) loaded by springs (21), the gripper arm ( 8), the linkage (10) and (11) and the insertion and sealing device (18) are attached to a common base plate (7). 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das Gestänge (10) und (11), so angeordnet ist, dass beim Schliessvorgang ein Totpunkt überschritten wird, wodurch eine Verriegelung des Greifers (8) verursacht wird.2. Device according to claim 1, characterized in that the linkage (10) and (11) is arranged so that a dead center is exceeded during the closing process, thereby causing a locking of the gripper (8). 3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass der Antrieb ein hydraulisch betätigter Zylinder (12) ist.3. Device according to claim 2, characterized in that the drive is a hydraulically operated cylinder (12). 4. Vorrichtung nach Anspruch 1, geKennzeichnet durcn einen Tauchlanzenköcher, welcner auf eine solidarisch mit einem Drehteller (23) verbundene konische Königssäule (26) aufgesetzt ist.4. Apparatus according to claim 1, characterized by a diving lance quiver which is placed on a conical king's column (26) connected in solidarity with a turntable (23). 5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass der Antrieb des Drehtellers (23) ein Getriebe (25) und einen elektriscnen Motor (24) umfasst.5. The device according to claim 4, characterized in that the drive of the turntable (23) comprises a gear (25) and an electric motor (24).
EP82100132A 1981-01-26 1982-01-11 Installation for the holding and changing of immersion lances Expired EP0056942B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82100132T ATE16024T1 (en) 1981-01-26 1982-01-11 DEVICE FOR HOLDING AND CHANGING DIVING LANCES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU83089A LU83089A1 (en) 1981-01-26 1981-01-26 DEVICE AND BRACKET FOR CHANGING DIVING LANCES
LU83089 1981-01-26

Publications (3)

Publication Number Publication Date
EP0056942A2 true EP0056942A2 (en) 1982-08-04
EP0056942A3 EP0056942A3 (en) 1982-08-11
EP0056942B1 EP0056942B1 (en) 1985-10-09

Family

ID=19729572

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82100132A Expired EP0056942B1 (en) 1981-01-26 1982-01-11 Installation for the holding and changing of immersion lances

Country Status (5)

Country Link
EP (1) EP0056942B1 (en)
AT (1) ATE16024T1 (en)
AU (1) AU546473B2 (en)
DE (1) DE3266719D1 (en)
LU (1) LU83089A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0112540A1 (en) * 1982-12-21 1984-07-04 Paul Wurth S.A. Installation for guiding and changing immersion lances
EP0223769A1 (en) * 1985-11-21 1987-05-27 VOEST-ALPINE INDUSTRIEANLAGENBAU GESELLSCHAFT m.b.H. Ladle stand for treating molten metal
FR2623892A1 (en) * 1987-09-07 1989-06-02 Wurth Paul Sa AUTOMATIC LANCE EXCHANGE DEVICE
WO1990005790A1 (en) * 1988-11-16 1990-05-31 Paul Wurth S.A. Automatic lance-exchanging device
EP0501172A1 (en) * 1991-03-01 1992-09-02 Paul Wurth S.A. Drive arrangement for an automatic lance changeover device
AT404025B (en) * 1991-10-14 1998-07-27 Wurth Paul Sa DEVICE FOR CARRYING AND COUPLING LANZS

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3543836A1 (en) * 1985-12-12 1987-06-19 Clemens Karl Heinz Twin blowing lance installation for metallurgical treatments, with integral measuring lance installation

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1292691B (en) * 1960-08-31 1969-04-17 Salzgitter Huettenwerk Ag Device for inflating or blowing gases, primarily oxygen, as well as gas-solid mixtures on or in metal, especially iron, baths
FR2006852A1 (en) * 1968-04-24 1970-01-02 Nippon Kokan Kk METHOD AND APPARATUS FOR REFINING MOLTEN IRON OR MOLTEN IRON ALLOYS
DE2454776A1 (en) * 1974-11-15 1976-05-20 Mannesmann Ag Feeding materials into molten metal, esp. steel - using immersion lances mounted on a swivel head and used alternately
US3968956A (en) * 1974-11-14 1976-07-13 Mitsubishi Kinzoku Kogyo Kabushiki Kaisha Lancing apparatus with means for ready replacement or renewal of lances for top blown metallurgical furnaces
DE2738291A1 (en) * 1977-08-25 1979-03-08 Krupp Gmbh Reaction material injector lance for electric furnace - has slide with regulator ensuring constant immersion of consumable lance
GB2021242A (en) * 1977-12-10 1979-11-28 Duport Steels Ltd Blowing Lance for Solid Materials
EP0013550A1 (en) * 1978-12-21 1980-07-23 Arbed S.A. Process and apparatus for the desulphurisation of molten ferrous metals

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1292691B (en) * 1960-08-31 1969-04-17 Salzgitter Huettenwerk Ag Device for inflating or blowing gases, primarily oxygen, as well as gas-solid mixtures on or in metal, especially iron, baths
FR2006852A1 (en) * 1968-04-24 1970-01-02 Nippon Kokan Kk METHOD AND APPARATUS FOR REFINING MOLTEN IRON OR MOLTEN IRON ALLOYS
US3968956A (en) * 1974-11-14 1976-07-13 Mitsubishi Kinzoku Kogyo Kabushiki Kaisha Lancing apparatus with means for ready replacement or renewal of lances for top blown metallurgical furnaces
DE2454776A1 (en) * 1974-11-15 1976-05-20 Mannesmann Ag Feeding materials into molten metal, esp. steel - using immersion lances mounted on a swivel head and used alternately
DE2738291A1 (en) * 1977-08-25 1979-03-08 Krupp Gmbh Reaction material injector lance for electric furnace - has slide with regulator ensuring constant immersion of consumable lance
GB2021242A (en) * 1977-12-10 1979-11-28 Duport Steels Ltd Blowing Lance for Solid Materials
EP0013550A1 (en) * 1978-12-21 1980-07-23 Arbed S.A. Process and apparatus for the desulphurisation of molten ferrous metals

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0112540A1 (en) * 1982-12-21 1984-07-04 Paul Wurth S.A. Installation for guiding and changing immersion lances
EP0223769A1 (en) * 1985-11-21 1987-05-27 VOEST-ALPINE INDUSTRIEANLAGENBAU GESELLSCHAFT m.b.H. Ladle stand for treating molten metal
FR2623892A1 (en) * 1987-09-07 1989-06-02 Wurth Paul Sa AUTOMATIC LANCE EXCHANGE DEVICE
US4893791A (en) * 1987-09-07 1990-01-16 Paul Wurth S.A. Automatic lance changeover device
AU600855B2 (en) * 1987-09-07 1990-08-23 Paul Wurth S.A. Automatic lance changeover device
BE1002463A4 (en) * 1987-09-07 1991-02-19 Wurth Paul Sa AUTOMATIC LANCE EXCHANGE DEVICE.
AT399345B (en) * 1987-09-07 1995-04-25 Wurth Paul Sa AUTOMATIC LANCES CHANGER
WO1990005790A1 (en) * 1988-11-16 1990-05-31 Paul Wurth S.A. Automatic lance-exchanging device
AU614451B2 (en) * 1988-11-16 1991-08-29 Paul Wurth S.A. Automatic lance-exchanging device
EP0501172A1 (en) * 1991-03-01 1992-09-02 Paul Wurth S.A. Drive arrangement for an automatic lance changeover device
AT404025B (en) * 1991-10-14 1998-07-27 Wurth Paul Sa DEVICE FOR CARRYING AND COUPLING LANZS

Also Published As

Publication number Publication date
AU546473B2 (en) 1985-09-05
EP0056942A3 (en) 1982-08-11
LU83089A1 (en) 1981-06-04
EP0056942B1 (en) 1985-10-09
ATE16024T1 (en) 1985-10-15
AU7929182A (en) 1982-08-05
DE3266719D1 (en) 1985-11-14

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