EP0396717B1 - Automatic lance-exchanging device - Google Patents

Automatic lance-exchanging device Download PDF

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Publication number
EP0396717B1
EP0396717B1 EP89912763A EP89912763A EP0396717B1 EP 0396717 B1 EP0396717 B1 EP 0396717B1 EP 89912763 A EP89912763 A EP 89912763A EP 89912763 A EP89912763 A EP 89912763A EP 0396717 B1 EP0396717 B1 EP 0396717B1
Authority
EP
European Patent Office
Prior art keywords
lance
coupling
coupling head
hooks
automatic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89912763A
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German (de)
French (fr)
Other versions
EP0396717A1 (en
Inventor
Hubert Stomp
Carlo Heintz
Daniel Fries
Serge Devillet
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.)
Paul Wurth SA
Original Assignee
Paul Wurth SA
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 Paul Wurth SA filed Critical Paul Wurth SA
Priority to AT89912763T priority Critical patent/ATE92967T1/en
Publication of EP0396717A1 publication Critical patent/EP0396717A1/en
Application granted granted Critical
Publication of EP0396717B1 publication Critical patent/EP0396717B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to an automatic lance changing device, in particular for lances to be coupled and fastened to a vertically displaceable lance carrier sled in the steelmaking process, a coupling head on the lance carrier sled being supplied with the materials required for freshening and possibly also a cooling fluid and at the coupling point between Coupling head and upper part of the lance are transferred into the latter, and the coupling and attachment of the lances to the coupling head of the lance carrier carriage is carried out by means of two diametrically opposed coupling pins on the upper part of the lance.
  • Document LU-69797 has made known a new type of lance of the above-mentioned type, which has the great advantage over the prior art in that despite the presence of a plurality of channels for the supply of said substances and fluids in a single operation the associated coupling head can be connected, this operation in the described embodiment consists of the manual fastening of a pivot pin connection on each side of the upper part of the lance.
  • the upper part of the lance has a flange with two diametrically opposite, laterally open fastening openings for interaction with the two pivot bolts.
  • an automatic lance changing device is described in document LU-86985, which is particularly intended for lances, which are not provided on their upper part with a coupling flange, but usually with two, preferably diametrically opposed coupling pins.
  • the automation device described in the above-mentioned document LU-86985 works perfectly, it is not so much the object of the invention to remedy any shortcomings of the prior art, but rather it is the task of the user of the fresh lances mentioned in the selection of his to provide a further possibility of providing an optimal automation solution for a specific application, especially in the case of lances with the coupling pins mentioned.
  • the device according to the invention has the advantage over the device described in document LU-86985 for lances with coupling pins that the actuating mechanism is less complex.
  • a vertically displaceable fastening hook 4 which is mounted for the viewer on the left on the indicated coupling head 6 in FIG. 1, is in its highest position in the two figures, in which it counteracts the lance, the upper part 8 of which is indicated, with the aid of its coupling pin 10 presses the coupling head 6.
  • an identical arrangement, not shown, is provided on the right on the coupling head 6.
  • the hooks 4 are not designed to carry out an actual pivoting movement to release the pin 10, but essentially only a lifting movement. If the lance 8 is to be disassembled during an exchange process, the two hooks 4 are lowered so that the lance 8 is released from the coupling head 6; it can now be picked up and removed by a transfer device, which is not shown, as is indicated, for example, in FIG. 3 of document LU-86985. Said or a second transfer device now brings up a new lance 8 and hangs it with its coupling pin 10 into the hooks 4, whereupon they execute a lifting movement and press the lance against the head 6 for its operational readiness.
  • a great advantage of the invention is the simplicity of the device for generating the hook vertical movements. It is an eccentric device on both sides of the coupling head, each consisting of an eccentric body 12, which is mounted with the aid of roller bearings 14 on a bolt 16 fastened to the coupling head 6.
  • the hooks 4 are also mounted on the circular, eccentric contour of the eccentric body 12 by means of roller bearings 18.
  • Figure 1 it can be seen that the larger wall thickness 20 of the eccentric body 12 is in the operating state shown above and the smaller wall thickness 22 is below. Of course, this corresponds to the hook position for pressing the lance against the coupling head.
  • a swivel arm 24 is flanged to each of them, which in a preferred embodiment of the invention is actuated by a pneumatic cylinder (not shown) and is also held in the operating position.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Furnace Charging Or Discharging (AREA)

Abstract

Automatic coupling for coupling the lances used in steelmaking to a coupling head of a lance-holder, the requisite substances and liquid coolants being supplied to the lance through the coupling head. Coupling is effected by means of coupling hooks (4) provided on the coupling head (6), which are mounted on eccentrics (12) and move vertically when the eccentrics (12) are actuated.

Description

Die Erfindung betrifft eine automatische Lanzenwechselvorrichtung, insbesondere für bei der Stahlherstellung durch ein Aufblasverfahren an einen vertikal verfahrbaren Lanzenträgerschlitten anzukuppelnde und zu befestigende Lanzen, wobei einem Kupplungskopf am Lanzenträgerschlitten die für das Frischen benötigten Stoffe, sowie gegebenenfalls auch ein Kühlfluid, zugeführt und an der Kupplungsstelle zwischen Kupplungskopf und Lanzenoberteil in letzteren überführt werden, und wobei das Ankuppeln und Befestigen der Lanzen am Kupplungskopf des Lanzenträgerschlittens mittels zweier diametral gegenüberliegender Ankuppelzapfen am Lanzenoberteil erfolgt.The invention relates to an automatic lance changing device, in particular for lances to be coupled and fastened to a vertically displaceable lance carrier sled in the steelmaking process, a coupling head on the lance carrier sled being supplied with the materials required for freshening and possibly also a cooling fluid and at the coupling point between Coupling head and upper part of the lance are transferred into the latter, and the coupling and attachment of the lances to the coupling head of the lance carrier carriage is carried out by means of two diametrically opposed coupling pins on the upper part of the lance.

Durch das Dokument LU-69797 ist eine neuartige Lanze der vorstehend genannten Gattung bekanntgeworden, welche gegenüber dem früheren Stand der Technik den grossen Vorteil aufweist, dass sie trotz des Vorhandenseins einer Mehrzahl von Kanälen für die Zufuhr der genannten Stoffe und Fluide durch einen einzigen Arbeitsgang mit dem zugeordneten Kupplungskopf verbunden werden kann, wobei dieser Arbeitsgang im beschriebenen Ausführungsbeispiel aus dem manuellen Befestigen je einer Schwenkbolzenverbindung beidseits des Lanzenoberteils besteht.Document LU-69797 has made known a new type of lance of the above-mentioned type, which has the great advantage over the prior art in that despite the presence of a plurality of channels for the supply of said substances and fluids in a single operation the associated coupling head can be connected, this operation in the described embodiment consists of the manual fastening of a pivot pin connection on each side of the upper part of the lance.

Hierzu weist der Lanzenoberteil einen Flansch auf mit zwei diametral gegenüberliegenden, seitlich offenen Befestigungsöffnungen zum Zusammenwirken mit den beiden Schwenkbolzen.For this purpose, the upper part of the lance has a flange with two diametrically opposite, laterally open fastening openings for interaction with the two pivot bolts.

Um das manuelle Befestigen, beispielsweise der Lanzen mit der genannten Ausführung des Lanzenoberteils, zu automatisieren, wird im Dokument LU-86985 eine automatische Lanzenwechselvorrichtung beschrieben, welche insbesondere für Lanzen gedacht ist, welche an ihrem Oberteil nicht mit einem Ankuppelflansch, sondern mit normalerweise zwei, vorzugsweise diametral gegenüberliegenden Ankuppelzapfen versehen sind.In order to automate the manual fastening, for example of the lances with the mentioned design of the upper part of the lance, an automatic lance changing device is described in document LU-86985, which is particularly intended for lances, which are not provided on their upper part with a coupling flange, but usually with two, preferably diametrically opposed coupling pins.

Da die in dem vorstehend genannten Dokument LU-86985 beschriebene Automatisierungsvorrichtung einwandfrei arbeitet, ist es nicht so sehr Ziel der Erfindung, eventuelle Unzulänglichkeiten des Standes der Technik abzustellen, es ist vielmehr ihre Aufgabe, dem Anwender der eingangs genannten Frischlanzen bei der Wahl der für seinen spezifischen Anwendungsfall optimalen Automatisierungslösung, insbesondere bei Lanzen mit den genannten Ankuppelzapfen, eine weitere Möglichkeit zur Verfügung zu stellen. Allerdings hat die erfindungsgemässe Vorrichtung gegenüber der im Dokument LU-86985 für Lanzen mit Ankuppelzapfen beschriebenen Vorrichtung den Vorteil eines weniger aufwendigen Betätigungsmechanismus.Since the automation device described in the above-mentioned document LU-86985 works perfectly, it is not so much the object of the invention to remedy any shortcomings of the prior art, but rather it is the task of the user of the fresh lances mentioned in the selection of his to provide a further possibility of providing an optimal automation solution for a specific application, especially in the case of lances with the coupling pins mentioned. However, the device according to the invention has the advantage over the device described in document LU-86985 for lances with coupling pins that the actuating mechanism is less complex.

Diese Aufgabe wird, ausgehend von einer automatischen Lanzenwechselvorrichtung der eingangs erwähnten Gattung durch die im Hauptanspruch angeführten Merkmale gelöst.This object is achieved on the basis of an automatic lance changing device of the type mentioned at the outset by the features stated in the main claim.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen, in denen gleiche Teile mit den gleichen Referenzzahlen versehen sind, dargestellt und wird im folgenden näher beschrieben. Es zeigen :

  • Figur 1, die Vorderansicht eines Schnittes durch eine der beiden beidseits des in dünnen Vollinien angedeuteten Kupplungskopfes angeordneten Befestigungsmechanismen für eine Lanze mit Ankuppelzapfen;
  • Figur 2, eine Seitenansicht des Gegenstandes von Figur 1 in Blickrichtung A.
An embodiment of the invention is shown in the drawings, in which the same parts are provided with the same reference numbers, and is described in more detail below. Show it :
  • Figure 1, the front view of a section through one of the two fastening mechanisms arranged on both sides of the coupling head indicated in thin solid lines for a lance with a coupling pin;
  • FIG. 2 shows a side view of the object from FIG. 1 in viewing direction A.

Für die nun folgende Beschreibung betrachte man vorteilhafterweise die beiden Figuren gleichzeitig.For the description that follows, advantageously consider the two figures at the same time.

Ein vertikal verschieblicher Befestigungshaken 4, welcher in Figur 1 für den Betrachter links am angedeuteten Kupplungskopf 6 montiert ist, befindet sich in den beiden Figuren in seiner höchsten Stellung, in welcher er die Lanze, deren Oberteil 8 angedeutet ist, mit Hilfe deren Ankuppelzapfens 10 gegen den Kupplungskopf 6 presst. Selbstverständlich ist rechts am Kupplungskopf 6 eine identische, nicht dargestellte Anordnung vorgesehen.A vertically displaceable fastening hook 4, which is mounted for the viewer on the left on the indicated coupling head 6 in FIG. 1, is in its highest position in the two figures, in which it counteracts the lance, the upper part 8 of which is indicated, with the aid of its coupling pin 10 presses the coupling head 6. Of course, an identical arrangement, not shown, is provided on the right on the coupling head 6.

Die Haken 4 sind im Prinzip nicht dafür ausgelegt, eine eigentliche Schwenkbewegung zur Freigabe des Zapfens 10 auszuführen, sondern im wesentlichen nur eine Hubbewegung. Soll die Lanze 8 bei einem Auswechselvorgang demontiert werden, so werden die beiden Haken 4 abgesenkt, so dass die Lanze 8 vom Kupplungskopf 6 freikommt; sie kann jetzt von einer nicht gezeisten Transfervorrichtung, wie eine solche beispielsweise in Figur 3 des Dokumentes LU-86985 angedeutet ist, aufgenommen und entfernt werden. Die genannte oder eine zweite Transfervorrichtung bringt jetzt eine neue Lanze 8 heran und hängt sie mit deren Ankuppelzapfen 10 in die Haken 4 ein, worauf dieselben eine Hubbewegung ausführen und die Lanze für deren Betriebsbereitschaft gegen den Kopf 6 pressen.In principle, the hooks 4 are not designed to carry out an actual pivoting movement to release the pin 10, but essentially only a lifting movement. If the lance 8 is to be disassembled during an exchange process, the two hooks 4 are lowered so that the lance 8 is released from the coupling head 6; it can now be picked up and removed by a transfer device, which is not shown, as is indicated, for example, in FIG. 3 of document LU-86985. Said or a second transfer device now brings up a new lance 8 and hangs it with its coupling pin 10 into the hooks 4, whereupon they execute a lifting movement and press the lance against the head 6 for its operational readiness.

Ein grosser Vorteil der Erfindung besteht in der Einfachheit der Vorrichtung zur Erzeugung der Hakenvertikalbewegungen. Es handelt sich dabei um eine Exzentervorrichtung beidseits des Kupplungskopfes, bestehend aus je einem Exzenterkörper 12, welcher mit Hilfe von Wälzlagern 14 an einem am Kupplungskopf 6 befestigten Bolzen 16 gelagert ist. Die Haken 4 sind, ebenfalls mittels Wälzlagern 18 an der kreisförmigen, exzentrischen Kontur des Exzenterkörper 12 gelagert. In Figur 1 ist zu erkennen dass die grössere Wandstärke 20 des Exzenterkörper 12 sich im dargestellten Betriebszustand oben befindet und die kleinere Wandstärke 22 unten. Dies entspricht natürlich der Hakenstellung für das Anpressen der Lanze gegen den Kupplungskopf.A great advantage of the invention is the simplicity of the device for generating the hook vertical movements. It is an eccentric device on both sides of the coupling head, each consisting of an eccentric body 12, which is mounted with the aid of roller bearings 14 on a bolt 16 fastened to the coupling head 6. The hooks 4 are also mounted on the circular, eccentric contour of the eccentric body 12 by means of roller bearings 18. In Figure 1 it can be seen that the larger wall thickness 20 of the eccentric body 12 is in the operating state shown above and the smaller wall thickness 22 is below. Of course, this corresponds to the hook position for pressing the lance against the coupling head.

Zum Betätigen der Exzenterkörper 12 ist an dieselben je ein Schwenkarm 24 angeflanscht, der in einer bevorzugten Ausführung der Erfindung von einem nicht dargezeigten Pneumatikzylinder betätigt und auch in Betriebsstellung gehalten wird.To actuate the eccentric bodies 12, a swivel arm 24 is flanged to each of them, which in a preferred embodiment of the invention is actuated by a pneumatic cylinder (not shown) and is also held in the operating position.

Claims (3)

  1. Automatic lance changing apparatus, in particular for lances for steel production by a top blowing process, to be coupled and fastened to a lance carrier slide which can travel vertically, the materials required for refining, and also if necessary a cooling fluid, being fed to a coupling head on the lance carrier slide and transferred at the coupling point between the coupling head and the upper part of the lance into the latter, characterized by coupling hooks (4) provided on each side on the coupling head (6) and cooperating with coupling pins (10) on the upper part of the lance (8), an eccentric body (12) which is rotatably mounted on a respective supporting bolt (16) mounted on the coupling head (6), a respective pivot arm (24) on each of the two eccentric bodies (12) such that the hooks (4) are rotatably mounted externally on a respective one of the two eccentric bodies (12), and in that, on actuation of the pivot arms (24), the hooks (4) execute a substantially vertical motion, so that the lance (8) can either be pressed against the coupling head (6) or else released from it.
  2. Automatic lance changing apparatus according to Claim 1, characterized in that the actuation of the pivot arms is effected by respective pneumatic cylinders.
  3. Automatic lance changing apparatus according to Claim 2, characterized in that the pneumatic cylinder, by being supplied with compressed air, holds the pivot arms (24) likewise in their operating position for operation of the lance (8).
EP89912763A 1988-11-16 1989-11-15 Automatic lance-exchanging device Expired - Lifetime EP0396717B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89912763T ATE92967T1 (en) 1988-11-16 1989-11-15 AUTOMATIC LANCE CHANGE DEVICE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU87387A LU87387A1 (en) 1988-11-16 1988-11-16 AUTOMATIC LANCES CHANGER
LU87387 1988-11-16

Publications (2)

Publication Number Publication Date
EP0396717A1 EP0396717A1 (en) 1990-11-14
EP0396717B1 true EP0396717B1 (en) 1993-08-11

Family

ID=19731112

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89912763A Expired - Lifetime EP0396717B1 (en) 1988-11-16 1989-11-15 Automatic lance-exchanging device

Country Status (7)

Country Link
US (1) US5037069A (en)
EP (1) EP0396717B1 (en)
AU (1) AU614451B2 (en)
BR (1) BR8907166A (en)
CA (1) CA2003179A1 (en)
LU (1) LU87387A1 (en)
WO (1) WO1990005790A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU87897A1 (en) * 1991-03-01 1992-11-16 Wurth Paul Sa DRIVE FOR AUTOMATIC LANCHANGE CHANGING DEVICES
LU88017A1 (en) * 1991-10-14 1993-05-17 Wurth Paul Sa Drive for automatic lance changing devices
LU88056A1 (en) * 1992-01-24 1993-08-17 Paul Wurth S.A. DEVICE FOR MEDIA SUPPLYING A BLOWING LANCE
LU88808A1 (en) * 1996-08-28 1998-03-02 Wurth Paul Sa Device for coupling a blowing lance to a manifold
US7803982B2 (en) 2001-04-20 2010-09-28 The Mount Sinai School Of Medicine Of New York University T1R3 transgenic animals, cells and related methods
US9259780B2 (en) * 2013-03-15 2016-02-16 Esm Group Inc. Rotational lance drive and rotational lance injection method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU69797A1 (en) * 1974-04-05 1974-11-21
DE2502977C2 (en) * 1975-01-23 1977-03-31 Mannesmann Ag BLOW LANCE COUPLING AND BLOW LANCE
SU819185A1 (en) * 1979-04-03 1981-04-07 Производственное Объединение"Ждановтяжмаш" Device for metal blasting
LU83089A1 (en) * 1981-01-26 1981-06-04 Wurth Anciens Ets Paul DEVICE AND BRACKET FOR CHANGING DIVING LANCES
IN159870B (en) * 1982-12-21 1987-06-13 Wurth Paul Sa
EP0189016A1 (en) * 1984-12-18 1986-07-30 COCKERILL SAMBRE Société Anonyme dite: Swinging out device for mounting and dismounting a blowing lance
LU86985A1 (en) * 1987-09-07 1989-04-06 Wurth Paul Sa AUTOMATIC LANCES CHANGER

Also Published As

Publication number Publication date
WO1990005790A1 (en) 1990-05-31
AU614451B2 (en) 1991-08-29
CA2003179A1 (en) 1990-05-16
US5037069A (en) 1991-08-06
BR8907166A (en) 1991-02-26
AU4622989A (en) 1990-06-12
EP0396717A1 (en) 1990-11-14
LU87387A1 (en) 1990-06-12

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