DE2502977B1 - Injection lance for treating molten metal in ladles - using quick acting coupling to clamp lance to its supply pipe - Google Patents

Injection lance for treating molten metal in ladles - using quick acting coupling to clamp lance to its supply pipe

Info

Publication number
DE2502977B1
DE2502977B1 DE19752502977 DE2502977A DE2502977B1 DE 2502977 B1 DE2502977 B1 DE 2502977B1 DE 19752502977 DE19752502977 DE 19752502977 DE 2502977 A DE2502977 A DE 2502977A DE 2502977 B1 DE2502977 B1 DE 2502977B1
Authority
DE
Germany
Prior art keywords
lance
blowing
lances
coupling
frame
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
DE19752502977
Other languages
German (de)
Other versions
DE2502977C2 (en
Inventor
Karlheinz Lasarski
Helmut Dipl-Ing Orsech
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vodafone GmbH
Original Assignee
Mannesmann AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mannesmann AG filed Critical Mannesmann AG
Priority to DE19752502977 priority Critical patent/DE2502977C2/en
Publication of DE2502977B1 publication Critical patent/DE2502977B1/en
Application granted granted Critical
Publication of DE2502977C2 publication Critical patent/DE2502977C2/en
Expired legal-status Critical Current

Links

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
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4606—Lances or injectors
    • C21C5/462—Means for handling, e.g. adjusting, changing, coupling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

Coupling for blowing-lances, and similar devices, employed in the treatment of steel in ladles or for other metallurgical processes, uses a frame carrying a work cylinder, the piston rod of which actuates one end of a lever via a pivot joint, whereas the other end of the lever is provided with a fork-shaped ball socket, the lever being mounted on the frame, which also carries a connector plate fitted with a sealing cone for the lance. The lance is pref. provided with a sealing head, the top of the head consisting of a cone mating with the connector plate while the bottom end of the head is ball-shaped. The lance is used, e.g., for blowing gas into molten steel, for desulphurisation, or for allowing. Worn lances may be rapidly replaced.

Description

Wie in den Zeichnungen dargestellt, wird die mit dem Dichtkopf 6 versehene Blaslanze 7 in die Kugelpfanne 2 des Hebelarms 1 eingehängt und mit Hilfe des Druckzylinders in den Dichtkonus 9 der Anschlußplatte 10, die mit der Versorgungsleitung 5 verbunden ist, eingedrückt und gehalten. Die Verbindung zwischen Druckzylinder 4 und Hebelarm 1 erfolgt über ein Drehgelenk 3. Auf diese Weise wird ein einfaches Auswechseln der Blaslanze 7 ermöglicht. Die gesamte Kupplungsanordnung wird durch einen geschlossenen Rahmen 8, in dem der Druckzylinder 4 und der Hebelarm 1 beweglich, die Anschlußplatte 10 mit Dichtkonus 9 jedoch fest gelagert sind, gehalten. As shown in the drawings, the one with the sealing head 6 provided blowing lance 7 suspended in the ball socket 2 of the lever arm 1 and with the help of the pressure cylinder in the sealing cone 9 of the connection plate 10, which is connected to the supply line 5 is connected, pressed in and held. The connection between the printing cylinder 4 and lever arm 1 takes place via a swivel joint 3. In this way, a simple The blowing lance 7 can be replaced. The entire clutch assembly is through a closed frame 8 in which the printing cylinder 4 and the lever arm 1 are movable, the connection plate 10 with sealing cone 9, however, are firmly mounted, held.

Claims (2)

Patentansprüche: 1. Kupplung für Blaslanzen u. dgl. zum Einsatz bei der Stahlnachbehandlung in Pfannen od. ä. metallurgischen Maßnahmen, g e k e n n z e ich n e t du reh einen Rahmen (8), in dem ein Hebel (1), der an einem Ende eine gabelförmige Kugelpfanne (2) und an dem anderen Ende ein Drehgelenk (3) besitzt, angeordnet ist, durch einen an dem Rahmen (8) angeordneten Druckzylinder (4), der mit dem Drehgelenk (3) des Hebels (1) verbunden ist und durch eine am Rahmen (8) angeordnete mit einem Dichtkonus (9) versehene Anschlußplatte (10) für die Blaslanze. Claims: 1. Coupling for blowing lances and the like for use with after-treatment of steel in ladles or similar metallurgical measures, g e k e n n z e ich n e t du re a frame (8) in which a lever (1), which at one end has a has a fork-shaped ball socket (2) and a swivel joint (3) at the other end, is arranged by a on the frame (8) arranged pressure cylinder (4), the is connected to the swivel joint (3) of the lever (1) and by means of one on the frame (8) arranged with a sealing cone (9) provided connection plate (10) for the blowing lance. 2. Blaslanze zur Anwendung in der Kupplung nach Anspruch 1, dadurch gekennzeichnet, daß die Blaslanze (7) mit einem Dichtkopf (6) versehen ist, der an einem Ende einen dem Dichtkonus der Anschlußplatte (10) entsprechenden Dichtkonus aufweist und am anderen Ende kugelförmig ausgebildet ist. 2. Blowing lance for use in the coupling according to claim 1, characterized characterized in that the blowing lance (7) is provided with a sealing head (6) which at one end a sealing cone corresponding to the sealing cone of the connecting plate (10) and is spherical at the other end. Gegenstand der Erfindung ist eine Kupplung für Blaslanzen od. dgl., insbesondere zum Einsatz bei der Stahlnachbehandlung in Pfannen sowie eine Blaslanze. The invention relates to a coupling for blowing lances or the like. especially for use in steel post-treatment in pans and a blowing lance. Bekannterweise werden bei der Nachbehandlung von Stahl in Pfannen Blaslanzen benötigt, um ein Behandlungsgas oder ein Entschwefelungs- bzw. Legierungsmittel in die Schmelze zu blasen. Diese Blaslanzen unterliegen einem starken Verschleiß und müssen häufig ausgewechselt werden. It is well known that pans are used in the aftertreatment of steel Blowing lances needed to deliver a treatment gas or a desulfurizing or alloying agent to blow into the melt. These lances are subject to heavy wear and need to be replaced frequently. Aufgabe der Erfindung ist es, eine Kupplung für Blaslanzen zu schaffen, die eine schnelle und sichere Verbindung mit der Versorgungsleitung für das Behandlungsmedium ermöglicht, sowie eine dazu passende Blaslanze. The object of the invention is to create a coupling for blowing lances, a fast and safe connection to the supply line for the treatment medium as well as a matching blow lance. Zur Lösung dieser Aufgabe wird eine Blaslanzenkupplung vorgeschiagen, die gekennzeichnet ist durch einen Rahmen, in dem ein Hebel, der an einem Ende eine gabelförmige Kugelpfanne und an dem anderen Ende ein Drehgelenk besitzt, angeordnet ist, durch einen an dem Rahmen angeordneten Druckzylinder, der mit dem Drehgelenk des Hebels verbunden ist und durch eine am Rahmen angeordnete. mit einem Dichtkonus versehene Anschlußplatte für die Blaslanze. To solve this problem, a lance coupling is proposed, which is characterized by a frame in which a lever that at one end has a fork-shaped ball socket and at the other end has a swivel joint, arranged is, by a pressure cylinder arranged on the frame, which is connected to the swivel joint of the lever is connected and arranged by a on the frame. with a sealing cone provided connection plate for the blowing lance. Die Blaslanze ist mit dem Dichtkopf versehen, der an einem Ende einen dem Dichtkonus der Anschlußplatte entsprechenden Dichtkonus aufweist und am anderen Ende kugelförmig ausgebildet ist. The blowing lance is provided with the sealing head, which at one end has a has the sealing cone of the connecting plate corresponding sealing cone and on the other End is spherical. Beim Einsetzen bzw. Auswechseln der Blaslanzen wird die mit dem Dichtkopf versehene Lanze in die gabelförmige Kugelpfanne eingehängt. Nach Betätigung des Druckzylinders wird die Lanze über den Hebelarm mit ihrem Dichtkopf in den Dichtkonus der Anschlußplatte gedrückt. Hierdurch ist die Verbindung zu der Versorgungsleitung hergestellt. When inserting or replacing the blowing lances, the one with the sealing head The lance provided is hooked into the fork-shaped ball socket. After pressing the With the pressure cylinder, the lance is inserted into the sealing cone via the lever arm with its sealing head the connecting plate pressed. This creates the connection to the supply line manufactured. Durch die erfindungsgemäße Blaslanzenkupplung und die Blaslanze wird nicht nur ein schnelleres Auswechseln der Lanzen ermöglicht, sondern auch ein sicherer und optimaler Anschluß an die Versorgungsleitung gewährleistet. The lance coupling according to the invention and the lance is not only enables the lances to be changed more quickly, but also safer and optimal connection to the supply line guaranteed. In den Zeichnungen ist eine mögliche Ausführungsform der erfindungsgemäßen Blaslanzenkupplung schematisch dargestellt. Es zeigt F i g. 1 eine Vorderansicht, F i g. 2 eine Draufsicht. In the drawings is a possible embodiment of the invention Lance coupling shown schematically. It shows F i g. 1 a front view, F i g. 2 is a plan view.
DE19752502977 1975-01-23 1975-01-23 BLOW LANCE COUPLING AND BLOW LANCE Expired DE2502977C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19752502977 DE2502977C2 (en) 1975-01-23 1975-01-23 BLOW LANCE COUPLING AND BLOW LANCE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752502977 DE2502977C2 (en) 1975-01-23 1975-01-23 BLOW LANCE COUPLING AND BLOW LANCE

Publications (2)

Publication Number Publication Date
DE2502977B1 true DE2502977B1 (en) 1976-08-12
DE2502977C2 DE2502977C2 (en) 1977-03-31

Family

ID=5937260

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752502977 Expired DE2502977C2 (en) 1975-01-23 1975-01-23 BLOW LANCE COUPLING AND BLOW LANCE

Country Status (1)

Country Link
DE (1) DE2502977C2 (en)

Cited By (5)

* 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
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
EP0441767A2 (en) * 1990-02-01 1991-08-14 Voest-Alpine Industrieanlagenbau Gmbh An arrangement for supplying media to a blowing lance
WO1995004621A1 (en) * 1993-08-05 1995-02-16 Foseco International Limited Method and device for unplugging a molten metal discharge port

Cited By (8)

* 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
FR2623892A1 (en) * 1987-09-07 1989-06-02 Wurth Paul Sa AUTOMATIC LANCE EXCHANGE 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
EP0441767A2 (en) * 1990-02-01 1991-08-14 Voest-Alpine Industrieanlagenbau Gmbh An arrangement for supplying media to a blowing lance
EP0441767A3 (en) * 1990-02-01 1992-03-25 Voest-Alpine Industrieanlagenbau Gesellschaft M.B.H. An arrangement for supplying media to a blowing lance
WO1995004621A1 (en) * 1993-08-05 1995-02-16 Foseco International Limited Method and device for unplugging a molten metal discharge port

Also Published As

Publication number Publication date
DE2502977C2 (en) 1977-03-31

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Legal Events

Date Code Title Description
E77 Valid patent as to the heymanns-index 1977
EHJ Ceased/non-payment of the annual fee