EP0396717A1 - Automatic lance-exchanging device. - Google Patents

Automatic lance-exchanging device.

Info

Publication number
EP0396717A1
EP0396717A1 EP89912763A EP89912763A EP0396717A1 EP 0396717 A1 EP0396717 A1 EP 0396717A1 EP 89912763 A EP89912763 A EP 89912763A EP 89912763 A EP89912763 A EP 89912763A EP 0396717 A1 EP0396717 A1 EP 0396717A1
Authority
EP
European Patent Office
Prior art keywords
lance
coupling
coupling head
automatic
hooks
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
EP89912763A
Other languages
German (de)
French (fr)
Other versions
EP0396717B1 (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

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

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 in the manufacture of steel by means of an inflation process, with a coupling head on the lance carrier carriage containing the materials required for freshening and possibly also a cooling fluid , are fed and transferred at the coupling point between the coupling head and the upper part of the lance, 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 opposite coupling pins on the upper part of the lance.
  • Document LU-69797 has disclosed a new type of lance of the above-mentioned type, which has the great advantage over the prior art that despite the presence of a plurality of channels for the supply of said substances and fluids through a single one Operation can be connected to the associated coupling head, which 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 opposed, laterally open fastening openings for interacting with the two pivot bolts.
  • an automatic lance changing device is described in document LU-86985. which is especially intended for lances. which are not provided on their upper part with a coupling 1f1, but with two, preferably diametrically opposite coupling couplings.
  • 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 at the outset when choosing the one for his to provide a further possibility of providing an optimal automation solution for a specific application, in particular in the case of lances with the mentioned coupling pins.
  • 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.
  • FIG. 1 the front view of a section through one of the two fastening mechanisms for a lance with coupling pin arranged on both sides of the coupling head indicated in thin solid lines;
  • FIG. 2 shows a side view of the object from FIG. 1 in viewing direction A.
  • a vertically displaceable fastening hook 4 which in FIG. 1 is mounted on the left at the indicated coupling head 6 for the viewer, is in its highest position in the two figures, in which it lugs the lance, the upper part 8 of which is indicated, with the aid of its coupling 10 presses against the coupling head 6.
  • an identical arrangement is provided on the right on the coupling head 6.
  • the hooks 4 are not designed for an actual pivoting movement to release the
  • Coupling head 6 is released; it can now be picked up and removed by a transfer device, not shown, such as is indicated, for example, in FIG. 3 of document LU-86985.
  • the said or a second transfer device now brings a new lance 8 and hangs it with it
  • a great advantage of the invention resides in the simplicity of the device for generating the vertical hook movements. It is an eccentric device on both sides of the coupling head, each consisting of an eccentric body 12, which is supported by means 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 onto the same, which in a preferred embodiment of the invention is actuated by a pneumatic cylinder (not shown) and also in

Landscapes

  • 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

Couplage automatique permettant de coupler les lances utilisées lors de la préparation de l'acier à la tête d'accouplement d'un porte-lance, les matières et liquides de refroidissement nécessaires arrivant dans la lance par la tête d'accouplement. L'accouplement se fait par l'intermédiaire de crochets d'accouplement (4) prévus sur la tête d'accouplement (6), positionnés sur des excentriques (12) et se déplaçant verticalement lorsque ces excentriques (12) sont actionnés.Automatic coupling for coupling the lances used in preparing steel to the coupling head of a lance carrier, with the necessary materials and coolants entering the lance through the coupling head. The coupling takes place by means of coupling hooks (4) provided on the coupling head (6), positioned on eccentrics (12) and moving vertically when these eccentrics (12) are actuated.

Description

AUTOMA ISCHE L,ANZENWECHSELVORRICHTUNG AUTOMA ISCHE L, LAMP INTERCHANGEABLE DEVICE
Die Erfindung betrifft eine automatische Lanzen¬ wechselvorrichtung, insbesondere f r bei der Stahl- herstellung durch ein Aufblasverfahren an einen vertikal verfahrbaren Lanzentragerschlltten anzu¬ kuppelnde und zu befestigende Lanzen, wobei einem Kupplungskopf am Lanzentragerschlitten die für das Frischen benötigten Stoffe, sowie gegebenenf lls 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 Lanzen¬ tragerschlittens mittels zweier diametral gegenüber¬ liegender Ankuppelzapfen am Lanzenoberteil erfolgt. 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 Vorhanden¬ seins 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 beids'eits des Lanzenoberteils besteht.The invention relates to an automatic lance changing device, in particular for lances to be coupled and fastened to a vertically displaceable lance carrier in the manufacture of steel by means of an inflation process, with a coupling head on the lance carrier carriage containing the materials required for freshening and possibly also a cooling fluid , are fed and transferred at the coupling point between the coupling head and the upper part of the lance, 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 opposite coupling pins on the upper part of the lance. Document LU-69797 has disclosed a new type of lance of the above-mentioned type, which has the great advantage over the prior art that despite the presence of a plurality of channels for the supply of said substances and fluids through a single one Operation can be connected to the associated coupling head, which 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 Schwenkbo1zen. Um das manuelle Befestigen, beispielsweise der Lanzen mit der genannten Ausführung des Lanzenober¬ teils, zu automatisieren, wird im Dokument LU-86985 eine automatische Lanzenwechselvorrichtung beschrieben, welche insbesondere für Lanzen gedacht ist. welche an ihrem Oberteil nicht mit einem Ankuppe1f1 nsch, sondern mit normalerweise zwei, vorzugsweise diametral gegenüberliegenden Ankuppe1zapfen versehen sind. 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 Automa isierungslösung, insbesondere bei Lanzen mit den genannten Ankuppe1zapfen, eine weitere Möglichkeit zur Verfügung zu stellen. Allerdings hat die erfin- dungsgemässe Vorrichtung gegenüber der im Dokument LU- 86985 für Lanzen mit Ankuppelzapfen beschriebenen Vorrichtung den Vorteil eines weniger aufwendigen Betätigungsmechanismus.For this purpose, the upper part of the lance has a flange with two diametrically opposed, laterally open fastening openings for interacting with the two pivot bolts. 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 especially intended for lances. which are not provided on their upper part with a coupling 1f1, but with two, preferably diametrically opposite coupling couplings. 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 at the outset when choosing the one for his to provide a further possibility of providing an optimal automation solution for a specific application, in particular in the case of lances with the mentioned coupling pins. 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 automa- tischen Lanzenwechsel orrichtung 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 :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 :
Figur 1 , die Vorderansicht eines Schnittes durch eine der beiden beidseits des in dünnen Vollinien angedeuteten Kupplungskopfes angeordneten Befestigungs- mechanismen für eine Lanze mit Ankuppe1zapfen;FIG. 1, the front view of a section through one of the two fastening mechanisms for a lance with coupling pin arranged on both sides of the coupling head indicated in thin solid lines;
Figur 2, eine Seitenansicht des Gegenstandes von Figur 1 in Blickrichtung A. Für die nun folσende Beschreibung betrachte man vortei lhafterweise die beiden Figuren gleichzeitig.FIG. 2 shows a side view of the object from FIG. 1 in viewing direction A. For the description that follows, it is advantageous to consider the two figures at the same time.
Ein vertikal verschiebl icher Befes igungshaken 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 Ankuppe1zapfens 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 in FIG. 1 is mounted on the left at the indicated coupling head 6 for the viewer, is in its highest position in the two figures, in which it lugs the lance, the upper part 8 of which is indicated, with the aid of its coupling 10 presses against 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 desIn principle, the hooks 4 are not designed for an actual pivoting movement to release the
Zapfens 10 auszuführen, sondern im wesentlichen nur eine Hubbewegung. Soll die Lanze 8 bei einemExecute pin 10, but essentially only a lifting movement. If the lance 8 at one
AuswechselVorgang demontiert werden, so werden die beiden Haken 4 abgesenkt, so dass die Lanze 8 vomReplacement process are dismantled, the two hooks 4 are lowered so that the lance 8 from
Kupplungskopf 6 freikommt; sie kann jetzt von einer nicht gezeigten 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 derenCoupling head 6 is released; it can now be picked up and removed by a transfer device, not shown, such as is indicated, for example, in FIG. 3 of document LU-86985. The said or a second transfer device now brings a new lance 8 and hangs it with it
Ankuppe1zapfen 10 in die Haken 4 ein, worauf dieselben eine Hubbewegung ausführen und die Lanze für derenAnkuppe1zapfen 10 in the hook 4, whereupon they perform a lifting movement and the lance for their
Betriebsbereitschaft gegen den Kopf 6 pressen.Press operational readiness against head 6.
Ein grosser Vorteil der Erfindung besteht in der Einfachheit der Vorrichtung zur Erzeugung der Haken¬ vertikalbewegungen. 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 Kupp1ungskopf.A great advantage of the invention resides in the simplicity of the device for generating the vertical hook movements. It is an eccentric device on both sides of the coupling head, each consisting of an eccentric body 12, which is supported by means 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 Exzenterkör.per 12 ist an dieselben je ein Schwenkarm 24 angeflanscht, der in einer bevorzugten Ausführung der Erfindung von einem nicht dargezeigten Pneumatikzylinder betätigt und auch inTo actuate the eccentric body 12, a swivel arm 24 is flanged onto the same, which in a preferred embodiment of the invention is actuated by a pneumatic cylinder (not shown) and also in
Betriebsstellung gehalten wird. Operating position is maintained.

Claims

PATENTANSPRÜCHE PATENT CLAIMS
1. Automatische LanzenwechselVorrichtung, ins¬ besondere für bei der Stahlherstellung durch ein Auf- blasverfahren an einen vertikal verfahrbaren Lanzen- trägerschl itten anzukuppelnde und zu befestigende Lanzen, wobei einem Kupplungskopf am Lanzenträger- schlitten die für das Frischen benötigten Stoffe, sowie gegebenenfalls auch ein Kühlfluid, zugeführt und an der Kupplungsstelle zwischen Kupplungskopf und Lanze- noberteil in letzteren überführt werden, gekennzeichnet durch beidseits am Kupplungskopf (6) vorgesehene Ankuppelhaken (4), welche mit Ankuppe1zapfen (10) am Oberteil der Lanze (8) zusammenwirken, einen Exzenter¬ körper (12), welcher auf je einem am Kupplungskopf (6) montierten Tragbolzen (16) drehbar gelagert ist, je einen Schwenkarm (24) an jedem der beiden Exzenter¬ körper (12), dadurch, dass die Haken (4) aussen auf je einem der beiden Exzenterkörper (12) drehbar gelagert sind, und dass bei einer Betätigung der Schwenkarme (24) die Haken (4) im wesentlichen eine Vertikal¬ bewegung ausführen, wodurch die Lanze (8) entweder gegen den Kupplungskopf (6) gepresst, oder aber von demselben gelöst werden kann.1. Automatic lance changing device, in particular for lances to be coupled and fastened in a steelmaking process by means of an inflation process to a vertically displaceable lance carrier slide, with a coupling head on the lance carrier slide containing the materials required for the freshening and possibly also a cooling fluid , supplied and transferred at the coupling point between the coupling head and the upper part of the lance, characterized by coupling hooks (4) provided on both sides on the coupling head (6), which interact with coupling pins (10) on the upper part of the lance (8), an eccentric body (12), which is rotatably mounted on a support bolt (16) mounted on the coupling head (6), a swivel arm (24) on each of the two eccentric bodies (12), in that the hooks (4) on the outside each one of the two eccentric bodies (12) are rotatably mounted, and that when the swivel arms (24) are actuated, the hooks (4) essentially n perform a vertical movement, whereby the lance (8) can either be pressed against the coupling head (6) or can be released from the same.
2. Automatische LanzenwechselVorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Betätigung der Schwenkarme durch je einen Pneumatikzyl inder erfolgt .2. Automatic lance changing device according to claim 1, characterized in that the pivot arms are actuated by a pneumatic cylinder each.
3. Automatische LanzenwechselVorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass der Pneumatik- - zylinder durch seine Druckluftbeaufschlagung die Sσhwenkarme (24) ebenfalls in ihrer Betriebsstellung für das Arbeiten der Lanze (8) hält. 3. Automatic lance changing device according to claim 2, characterized in that the pneumatic cylinder holds the swivel arms (24) in its operating position for the working of the lance (8) due to its compressed air.
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 true EP0396717A1 (en) 1990-11-14
EP0396717B1 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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9005790A1 *

Also Published As

Publication number Publication date
WO1990005790A1 (en) 1990-05-31
AU614451B2 (en) 1991-08-29
EP0396717B1 (en) 1993-08-11
CA2003179A1 (en) 1990-05-16
US5037069A (en) 1991-08-06
BR8907166A (en) 1991-02-26
AU4622989A (en) 1990-06-12
LU87387A1 (en) 1990-06-12

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