EP0396717B1 - Dispositif automatique d'echange de lance - Google Patents

Dispositif automatique d'echange de lance 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
Other languages
German (de)
English (en)
Other versions
EP0396717A1 (fr
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/de
Publication of EP0396717A1 publication Critical patent/EP0396717A1/fr
Application granted granted Critical
Publication of EP0396717B1 publication Critical patent/EP0396717B1/fr
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.

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.

Claims (3)

  1. Dispositif automatique de changement de lances, notamment pour des lances qui, lors de la fabrication d'acier par un processus de soufflage, doivent être accouplées et fixées sur un chariot porteur de lances déplaçable verticalement, les matières nécessaires pour l'affinage, et le cas échéant également un fluide de refroidissement, étant introduits dans une tête d'accouplement prévue sur le chariot porte-lances, et étant transférés jusque dans la zone d'accouplement entre la tête d'accouplement et la partie supérieure de lances, caractérisé en ce qu'il est prévu des deux côtés de la tête d'accouplement (6) des crochets d'accouplement (4), qui coopèrent avec des broche d'accouplement (10) situées à la partie supérieure de la lance (8), un corps à excentrique (12) qui est monté de façon tournante sur un tourillon porteur respectif (16) monté sur la tête d'accouplement (6), respectivement un bras de pivotement (24) prévu sur chacun des deux corps à excentriques (12), en ce que les crochets (4) sont montés extérieurement de façon tournante sur celui des deux corps à excentriques (12) qui leur est respectivement associé, et en ce que, lors d'un actionnement des bras de pivotement (24), les crochets (4) effectuent dans l'essentiel un mouvement vertical, de manière que la lance (8) puisse être soit appliquée contre la tête d'accouplement (6) ou bien séparée de celle-ci.
  2. Dispositif automatique de changement de lances selon la revendication 1, caractérisé en ce que l'actionnement des bras de pivotement est effectué par un cylindre pneumatique respectif.
  3. Dispositif automatique de changement de lances selon la revendication 2, caractérisé en ce que le cylindre pneumatique, lorsqu'il est sollicité par de l'air comprimé, maintient les bras de pivotement (24) également dans leur position de service pour le travail de la lance (8).
EP89912763A 1988-11-16 1989-11-15 Dispositif automatique d'echange de lance Expired - Lifetime EP0396717B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89912763T ATE92967T1 (de) 1988-11-16 1989-11-15 Automatische lanzenwechselvorrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU87387 1988-11-16
LU87387A LU87387A1 (de) 1988-11-16 1988-11-16 Automatische lanzenwechselvorrichtung

Publications (2)

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

Family

ID=19731112

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89912763A Expired - Lifetime EP0396717B1 (fr) 1988-11-16 1989-11-15 Dispositif automatique d'echange de lance

Country Status (7)

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

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU87897A1 (de) * 1991-03-01 1992-11-16 Wurth Paul Sa Antrieb fuer automatische lanzenwechselvorrichtungen
LU88017A1 (de) * 1991-10-14 1993-05-17 Wurth Paul Sa Antrieb fuer automatische lanzenwechselvorrichtungen
LU88056A1 (de) * 1992-01-24 1993-08-17 Paul Wurth S.A. Vorrichtung zur medienversorgung einer blaslanze
LU88808A1 (fr) * 1996-08-28 1998-03-02 Wurth Paul Sa Dispositif d'accouplement d'une lance de soufflage à un collecteur
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 (fr) * 1974-04-05 1974-11-21
DE2502977C2 (de) * 1975-01-23 1977-03-31 Mannesmann Ag Blaslanzenkupplung sowie blaslanze
SU819185A1 (ru) * 1979-04-03 1981-04-07 Производственное Объединение"Ждановтяжмаш" Устройство дл продувки металла
LU83089A1 (de) * 1981-01-26 1981-06-04 Wurth Anciens Ets Paul Vorrichtung und halterung zum wechseln von tauchlanzen
IN159870B (fr) * 1982-12-21 1987-06-13 Wurth Paul Sa
EP0189016A1 (fr) * 1984-12-18 1986-07-30 COCKERILL SAMBRE Société Anonyme dite: Appareil déployable pour le montage et le démontage d'une lance de soufflage
LU86985A1 (de) * 1987-09-07 1989-04-06 Wurth Paul Sa Automatische lanzenwechselvorrichtung

Also Published As

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

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