EP0858515B2 - Dispositif pour remplacement d'une lance de soufflage - Google Patents

Dispositif pour remplacement d'une lance de soufflage Download PDF

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Publication number
EP0858515B2
EP0858515B2 EP96937279A EP96937279A EP0858515B2 EP 0858515 B2 EP0858515 B2 EP 0858515B2 EP 96937279 A EP96937279 A EP 96937279A EP 96937279 A EP96937279 A EP 96937279A EP 0858515 B2 EP0858515 B2 EP 0858515B2
Authority
EP
European Patent Office
Prior art keywords
blow
lance
coupling head
blow lance
seat
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
EP96937279A
Other languages
German (de)
English (en)
Other versions
EP0858515B1 (fr
EP0858515A1 (fr
Inventor
Hans-Hermann Kempken
Manfred Kompa
Helmut W. Goj
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.)
Thyssen Stahl AG
Original Assignee
Thyssen Stahl 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7776665&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0858515(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Thyssen Stahl AG filed Critical Thyssen Stahl AG
Publication of EP0858515A1 publication Critical patent/EP0858515A1/fr
Application granted granted Critical
Publication of EP0858515B1 publication Critical patent/EP0858515B1/fr
Publication of EP0858515B2 publication Critical patent/EP0858515B2/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 a changing device according to the preamble of claim 1.
  • Blow lances are used, for example Oxygen in a converter during manufacture blowing steel.
  • the problem with that Blow lances used is that after are worn out for a certain period of use and need to be replaced.
  • the blowpipe through which is blown into the converter Gas is usually passed by means of a coolant Water, chilled
  • the blowing lances usually provided with a double jacket, the two interconnected coaxially i which encloses and arranged to the blowpipe. In the first, immediately adjacent to the blowpipe The coolant is introduced and then flows almost along the blowpipe to the top and from there through the second Coolant jacket outlet chamber back.
  • blowing lances with flanges For connecting the blowing fluid and coolant supply line and the coolant discharge line are conventional blowing lances with flanges, to which the relevant lines in conventional Are connectable. That kind of connection between teaches the supply and discharge lines the replacement of such a blowing lance the problem with that a significant time for loosening and connecting the lines is required. About that it is also in such connections between the Supply and discharge lines and the blowing lance not possible to automate the replacement process. Instead, it has to be accepted that to endanger the replacement of the Blow lance to prevent fitters from operating the blowing lance is interrupted for a long time.
  • the one required to replace the blow lance Time can be shortened with the help of a device which are described in European patent application EP 0 464 427 A2.
  • This known Exchange device is the section which in the Blow lances described above for connecting the Supply and discharge lines is provided, one assigned separate coupling head.
  • the coupling head is attached to a frame that over it also includes a hydraulically operated lifting system.
  • the remaining part of the blowing lance is in the lifting system attachable that the relevant end of the blowing lance in the coupling head can be inserted is both the end opening of the blowpipe and the Inlet and outlet of the cooling jacket on the end End face of the blowing lance arranged.
  • the connections are for the coolant supply and Discharge and the blowing fluid supply on that of the end face bottom of the receptacle assigned to the blowing lance the coupling head arranged.
  • Another device is from European patent application EP 0 441 767 A2 known
  • the coupling head the known device with which the blowing lance is releasably connectable also has one Plate on which the connections for the blowing fluid and the coolant is arranged in a corresponding manner, are.
  • Blow lances When inserted into the coupling head Blow lances are known from the US patent Device within the receptacle two axially spaced chambers formed, one of which with the Coolant inlet and the other with the coolant outlet the blowing lance is connected.
  • the Coolant inlet connected chamber opens the Coolant supply line while the the chamber connected to the coolant outlet to the Coolant drain line of the coolant supply connected.
  • the cooling jacket is the Blow lance over the chambers with the coolant supply connected.
  • the object of the invention is based on the above-described prior art simple means a changing device for blowing lances to create at which the effort for holding the Blow lance in the intake is reduced. And in the at the same time the tightness of the chambers when inserted Blow lance also under unfavorable operating conditions high security is guaranteed.
  • the embodiment of the Blow lance and the coupling head allows the Sealing of the individual inlets and outlets of the blowing lance by simply pushing the blow lance in to do the recording.
  • An elaborate holding device is after inserting the blowing lance in the recording is no longer necessary.
  • electrical, hydraulic or pneumatic Equipment needed for the coupling process instead of a simple coupling mechanism can be used be in the range of the respective Sealing agent used sealing surfaces always sufficient, for reliable sealing of the individual Ensure connections of the blowing lance during their operation. In this way, by the invention created inexpensive changeable device, which is easy with high operational reliability feasible replacement of the lance enables.
  • the invention is characterized in that both the inlet and the outlet of the cooling jacket open on a peripheral surface of the blowing lance.
  • the Blow lance releasably lockable with the coupling head his.
  • This can be achieved in a simple manner be that the coupling head by means of at least one swiveling hook attached to it with the Blow lance is lockable, the hook during inserting the blowing lance into the holder of the Coupling head automatically in its locking position emotional.
  • the Connection for the chamber assigned to the coolant supply the free, end face of the associated with the recording End of the blowing lance at least in sections surrounds, caused by the coolant exerted on the lance towards the tip Force that the lance is held in the hook without play.
  • the changing device shown in the figures for a blowing lance 1 has a coupling head 2 on, the height, side and angle adjustable via a guide 3 attached to a frame, not shown is.
  • the coupling head 2 has a first connection 4 for a blowing fluid, in particular oxygen, on which the upper side 5 of the coupling head 2 is arranged is.
  • a pipe insert 6 is fitted into the connection 4, the one associated with the inside of the coupling head 2 End 6a extends into a receptacle 7.
  • the receptacle 7 of the coupling head is for Bottom 8 of the coupling head 2 opened.
  • a ring insert from the bottom 8 9 used which with its lower section funnel-shaped to the bottom 8 expanded.
  • a groove 9a In the middle Section of the ring insert 9 is formed in a groove 9a, which is provided with a window-like opening 9b is.
  • Ring seals 10, 11 inserted in the grooves provided for this purpose.
  • the opening 9b of the ring insert 9 is one assigned second connection to which a not shown Coolant discharge line can be connected.
  • a third Port 13 is above second port 12 arranged and also opens into the receptacle 7. At the connection 13 is also not shown here Coolant supply line can be connected.
  • the blowing lance 1 has an internal blowing pipe 20 on which of the receptacle 7 of the coupling head 2 assigned end portion 21 is expanded and an enlarged compared to the remaining length of the blowpipe Has wall thickness. With its end section 21 is the blow pipe 20 on the end portion 6a the tube insert 6 pushed on, three in the axial direction of the pipe section 6 arranged one behind the other Ring seals 23 the sealing of the interlocking Sections of the tube insert 6 and Ensure blowpipe 20 in relation to the environment.
  • the blowpipe 20 is in a cooling jacket 30 Blow lance 1 inserted and releasably connected to it.
  • the cooling jacket 30 has a coaxial to Blow pipe 20 extending, spaced from this Partition 31 through which a first chamber 32 and a second chamber 33 within the cooling jacket 30 are divided.
  • the first chamber 32 of the Cooling jacket are connected to inlet openings 34, which at the upper end associated with the receptacle 7 the blow lance 1 are molded.
  • the second chamber 33 opens into outlet openings 35, which are offset to the tip of the blowing lance 1, not shown below one between the inlet openings 34 and the Outlet openings 35 formed first sealing surface 36 are molded into the cooling jacket 30.
  • the first and the second chamber 32, 33 of the cooling jacket are in the area the tip of the blowing lance, not shown connected so that the coolant, which by the inlet openings 34 flow into the first chamber 32, along the blowpipe 20 to the tip of the blow lance 1 passed and from there back through the chamber 33 is flushed to the outlet openings 35.
  • the second chamber 41 of the receptacle 7 surrounds the end face 42 of the bias lance 1, so that the pressure of the Chamber 41 applied coolant a force in the direction the not shown tip of the blowing lance 1 on this exercises.

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)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Nozzles (AREA)

Claims (5)

  1. Dispositif de remplacement d'une lance de soufflage (1), qui comporte un tube de soufflage (20) et une chemise de refroidissement (30) entourant le tube de soufflage (20) et pouvant être parcourue par un agent réfrigérant, chemise dont l'entrée et la sortie (34, 35) sont disposées sur une extrémité de la lance de soufflage (1), qui est associée à une tête de couplage (2),
    dans lequel la tête de couplage (2) comporte un logement (7), dans lequel cette extrémité de la lance de soufflage (1) peut être introduite et qui comprend des raccords (13, 12, 4) pour l'amenée de l'agent réfrigérant, l'évacuation de l'agent réfrigérant et l'amenée du fluide de soufflage,
    dans lequel la lance de soufflage (1) peut être couplée de façon amovible à la tête de couplage, l'entrée (34) ou la sortie (35) de la chemise de refroidissement (30) débouchant dans une surface périphérique de la lance de soufflage (1),
    dans lequel le raccord (13, 12), qui est associé respectivement à l'entrée (34) ou à la sortie (35), débouche dans une surface latérale du logement (7), qui est associée à la surface périphérique respective,
    dans lequel, lorsque la lance de soufflage (1) est introduite dans le logement (7) de la tête de couplage (2), le tube de soufflage (20) est relié par emboítement et d'une manière étanche à un embout tubulaire (6) du logement (7), qui est raccordé à l'alimentation en fluide de soufflage,
    dans lequel, lorsque la lance de soufflage (1) est insérée dans le logement (7) de la tête de couplage (2), respectivement une chambre (40, 41), notamment une chambre annulaire, est formée dans la zone du raccord (13) pour l'amenée de l'agent réfrigérant et dans la zone du raccord (12) pour l'évacuation de l'agent réfrigérant, et
    dans lequel les chambres (40, 41) sont disposées d'une manière superposée dans la direction d'insertion de la lance de soufflage (1),
       caractérisé en ce que
    que la chambre inférieure (40) est formée par une gorge annulaire (9a) réalisée dans la tête de couplage (2), dans la zone du raccord inférieur (12), et
    qu'au-dessus et au-dessous de la gorge annulaire (9a) sont insérés, dans des gorges prévues à cet effet, des garnitures d'étanchéité annulaires (10, 11), qui lorsque la lance de soufflage (1) est insérée dans le logement (7) s'appliquent radialement contre respectivement une surface périphérique de la lance de soufflage (1).
  2. Dispositif de remplacement selon la revendication 1, caractérisé en ce que l'entrée (34) ainsi que la sortie (35) de la chemise de refroidissement (30) débouchent sur une surface périphérique de la lance de soufflage (1).
  3. Dispositif de remplacement selon l'une quelconque des revendications précédentes, caractérisé en ce que la tête de couplage (2) peut être verrouillée avec la lance de soufflage (1) au moyen d'au moins un crochet (51) fixé sur la tête à pivotement et en ce que le crochet (51) se déplace automatiquement dans sa position de verrouillage au cours du glissement de la lance de soufflage (1) dans le logement (7) de la tête de couplage (2).
  4. Dispositif de remplacement selon la revendication 3, caractérisé en ce que la chambre (41) affectée au raccord (13) pour l'acheminement de l'agent réfrigérant entoure la surface d'extrémité frontale libre (42) de l'extrémité de la lance de soufflage (1) affectée au logement (7), au moins par sections.
  5. Dispositif de remplacement selon l'une quelconque des revendications précédentes, caractérisé en ce que l'embout tubulaire (6) et le tube de soufflage (20) de la lance de soufflage (1) sont raccordés l'un à l'autre de manière étanche via au moins une garniture d'étanchéité annulaire (23).
EP96937279A 1995-11-04 1996-10-29 Dispositif pour remplacement d'une lance de soufflage Expired - Lifetime EP0858515B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19541199 1995-11-04
DE19541199A DE19541199C2 (de) 1995-11-04 1995-11-04 Wechselvorrichtung für eine Blaslanze
PCT/EP1996/004693 WO1997017474A1 (fr) 1995-11-04 1996-10-29 Dispositif pour remplacement d'une lance de soufflage

Publications (3)

Publication Number Publication Date
EP0858515A1 EP0858515A1 (fr) 1998-08-19
EP0858515B1 EP0858515B1 (fr) 1999-06-30
EP0858515B2 true EP0858515B2 (fr) 2003-07-30

Family

ID=7776665

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96937279A Expired - Lifetime EP0858515B2 (fr) 1995-11-04 1996-10-29 Dispositif pour remplacement d'une lance de soufflage

Country Status (10)

Country Link
US (1) US6022507A (fr)
EP (1) EP0858515B2 (fr)
AR (1) AR004142A1 (fr)
AT (1) ATE181748T1 (fr)
BR (1) BR9611375A (fr)
DE (3) DE19541199C2 (fr)
ES (1) ES2134015T5 (fr)
IN (1) IN192458B (fr)
WO (1) WO1997017474A1 (fr)
ZA (1) ZA969136B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016223722A1 (de) 2016-11-29 2018-05-30 Sms Group Gmbh Vorrichtung und Verfahren zur Montage und Demontage eines Lanzenkopfes

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6139792A (en) * 1997-02-07 2000-10-31 Kvaerner Davy Ltd. Exchange of an oxygen lance for liquid steel conversion
GB9825428D0 (en) * 1998-11-19 1999-01-13 Kvaerner Metals Davy Ltd A quick change blow lance
US20040094878A1 (en) * 2002-11-19 2004-05-20 Leczo Theodore J. Modular lance
US20100237302A1 (en) 2009-03-16 2010-09-23 Montebon Sociedad Anonima Side anchor stretcher for filiform elements and method of production of said stretcher

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3170977A (en) * 1961-11-16 1965-02-23 Koppers Co Inc Oxygen lance with detachable barrel
DE1265179B (de) * 1961-11-16 1968-04-04 Koppers Co Inc Lanze zum Einblasen von Gas in ein Raffinierungsbad fuer Metall
CA1103449A (fr) * 1977-05-09 1981-06-23 William W. Berry Traduction non-disponible
LU86985A1 (de) * 1987-09-07 1989-04-06 Wurth Paul Sa Automatische lanzenwechselvorrichtung
DE59104180D1 (de) * 1990-02-01 1995-03-02 Voest Alpine Ind Anlagen Einrichtung zur Medienversorgung an einer Blaslanze.
LU87761A1 (fr) * 1990-07-04 1992-03-11 Wurth Paul Sa Dispositif d'accouplement automatique d'une lance d'insufflation a une tete de raccord
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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016223722A1 (de) 2016-11-29 2018-05-30 Sms Group Gmbh Vorrichtung und Verfahren zur Montage und Demontage eines Lanzenkopfes
DE102016223722B4 (de) 2016-11-29 2024-04-25 Sms Group Gmbh Vorrichtung und Verfahren zur Montage und Demontage eines Lanzenkopfes

Also Published As

Publication number Publication date
WO1997017474A1 (fr) 1997-05-15
EP0858515B1 (fr) 1999-06-30
ATE181748T1 (de) 1999-07-15
DE29623273U1 (de) 1998-02-26
ZA969136B (en) 1997-05-27
DE59602344D1 (de) 1999-08-05
US6022507A (en) 2000-02-08
IN192458B (fr) 2004-04-24
ES2134015T3 (es) 1999-09-16
DE19541199C1 (de) 1997-04-10
AR004142A1 (es) 1998-09-30
DE19541199C2 (de) 2001-05-23
ES2134015T5 (es) 2004-05-01
EP0858515A1 (fr) 1998-08-19
MX9803343A (es) 1998-09-30
BR9611375A (pt) 1999-09-14

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