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EP0553432A1 - Installation pour alimenter en matière une lance de soufflage - Google Patents

Installation pour alimenter en matière une lance de soufflage Download PDF

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Publication number
EP0553432A1
EP0553432A1 EP92120459A EP92120459A EP0553432A1 EP 0553432 A1 EP0553432 A1 EP 0553432A1 EP 92120459 A EP92120459 A EP 92120459A EP 92120459 A EP92120459 A EP 92120459A EP 0553432 A1 EP0553432 A1 EP 0553432A1
Authority
EP
European Patent Office
Prior art keywords
lance
carrier
connection
connection surface
blowing
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
EP92120459A
Other languages
German (de)
English (en)
Other versions
EP0553432B1 (fr
Inventor
Hubert Stomp
André Kremer
Daniel Fries
Serge Devillet
Marc Reichert
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
Publication of EP0553432A1 publication Critical patent/EP0553432A1/fr
Application granted granted Critical
Publication of EP0553432B1 publication Critical patent/EP0553432B1/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 device for supplying media to a blowing lance, in particular a blowing lance in steelmaking according to the inflation method, with a vertically movable lance carrier, an essentially vertical connection surface on a connection device on the lance carrier, a mating connection surface on the upper part of the blowing lance, the two connection surfaces during coupling the blowing lance can be pressed against the connecting device.
  • a decisive advantage of the arrangement described is that the lance for carrying out the actual coupling can first be fixed rigidly on the lance carrier. Swiveling and rocking movements of the lance, as they occur when the lance is transported to the lance holder, are thus largely suppressed, and the upper part of the lance is completely blocked and immobile for the actual coupling.
  • the coupling process with a top part of the lance still executing pivoting and tilting movements would have destructive effects on the connection surfaces on the lance carrier and on the coupling head, and on the coupling mechanism. This is all the more so as the lance, due to its great length, has significant moments of inertia.
  • EP-0 441 767-A2 describes a device for supplying media to a blowing lance with a vertical connection surface on the lance carrier.
  • the lance is suspended in a horizontal displacement device on the lance carrier.
  • the latter moves the lance horizontally in order to bring the mating connection surface on the upper part of the blowing lance into contact with the vertical connection surface on the lance carrier and to press it tightly. Since rocking movements of the lance can occur both when the lance is suspended in the displacement device, as well as during horizontal displacement and during the coupling and uncoupling process, there is a risk that the connecting surfaces on the upper part of the lance and / or on the connecting device on the lance carrier can be damaged by uncontrolled collision .
  • this object of the invention is achieved in that a fastening device on the lance carrier rigidly blocks the blowing lance prior to the actual coupling process and in that the connecting device is mounted on a carriage which is guided in horizontal guides of the lance carrier and is horizontally displaceable during the actual coupling and uncoupling process.
  • the first vertical connection surface on the lance carrier is replaced by a horizontal one Moving the connection device brought into contact with the immovable counter connection surface on the blocked upper part of the lance.
  • the lance with its significant moments of inertia therefore remains immobile during the coupling process and the coupling process is carried out by moving the slide guided in horizontal guides with the connecting device.
  • the slide with the connecting device is horizontally displaced in the opposite direction, the blocking of the lance by the fastening device only being released after the connecting device has reached its rest position. This effectively prevents damage to the two connection surfaces during coupling and uncoupling by uncontrolled movements of the lance and the connection device.
  • a carriage is to be understood to mean any construction which can cooperate with the guides in order to ensure perfect, horizontal guidance of the connecting device.
  • the carriage can of course also be an independent component of the connection device itself.
  • the connecting device has locking hooks which can be engaged in corresponding locking pins on the upper part of the lance.
  • the fastening device on the lance carrier comprises a supporting flange in which the lance can be suspended by means of a collar. Swiveling and sliding hooks then engage and pull the lance carrying bolts against the support flange so that the lance is firmly blocked on the lance carrier.
  • connection surfaces are no longer exposed to the risk of an uncontrolled collision during the coupling process, these connection surfaces can now advantageously be designed with concentric openings for the media channels. Of course, this design considerably simplifies the construction of the upper part of the lance.
  • the slide is advantageously provided with guide rollers or slideways which interact with the corresponding guide rails on the lance carrier.
  • the blowing lance can be picked up directly by a crane hook by means of a transport eye attached to the upper part of the lance, in the extension of the longitudinal axis of the lance.
  • Elaborate transport brackets which are known from the devices with horizontal connection surfaces, are therefore no longer required.
  • the reference number 4 denotes the upper end of a blowing lance, which has been placed and blocked on a vertically movable lance carrier 6 and has then been firmly coupled to a connection device 8 for various media, for example gases and liquid coolants.
  • the fastening device 10 for fixing and blocking the lance 4 on the lance carrier 6 essentially consists of a lance collar 12, by means of which the Lance can be hooked into a support flange 14 on the lance carrier 6, and from pivotable and displaceable hooks 16, 16 'on the lance carrier, which can be engaged in support bolts 18, 18' on the lance 4.
  • the lance 4 is coupled with its upper lance part or coupling head 20, the axis of which extends perpendicular to the longitudinal axis 4 ′ of the lance 4 and which preferably has a flat media supply connection area 22, to a corresponding mating connection area 34 of the connection device 8.
  • the connecting device 8 is not rigidly connected to the lance carrier 6, but rather is mounted on a carriage which is guided on horizontal guide rails 28, 30 of the lance carrier 6 by means of rollers 23, 24, 26.
  • the drive for the connection device can comprise, for example, a hydraulic linear drive.
  • the hooks 32, 32 'are then pivoted upwards, the latter engaging in corresponding coupling bolts 21, 21' on the upper part 20 of the lance and firmly pressing the two, opposite, connecting surfaces together.
  • the pivotable hooks 32, 32 'are for example, mounted eccentrically, or are driven by a device such as is described, for example, in US Pat. No. 4,893,791.
  • the hooks 32, 32 ' are both pivotable and horizontally displaceable.
  • the hooks 32, 32 'are first extended and then pivoted into the coupling bolts 21, 21 'on the upper part 20 of the lance.
  • the hooks 32, 32 'then pull the connection device 8 with the connection surface 34 against the connection surface 22 on the upper part of the lance.
  • the connection device 8 can also be returned to its waiting position (preferably additionally) by springs or counterweights as soon as the hooks 32, 32 'disengage from the bolts 21, 21'.
  • a transport eyelet 35 is attached to the lance upper part 20 in the extension of the longitudinal axis 4 'of the lance 4, into which a crane hook (not shown) can be latched.
  • the lance can therefore be transported without an additional transport bracket.
  • FIG. 2 shows the preferably flat connection surface 34 on the media connection device 8.
  • it has a central, preferably circular orifice 36 and a plurality of concentric annular orifices with sealing zones 38 in between. These openings cooperate with corresponding openings in the connection surface 22 of the lance head 20 in order to establish the connection of the blowing lance to the media supply.
  • Such a design of the media transfer areas has proven to be very effective in the past with horizontal areas. It can now also be implemented with a vertical arrangement of the connection surfaces 22, 34, without there being any risk of damage to the surfaces during the coupling process of the lance to the connection device on the lance carrier.

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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)
  • Furnace Charging Or Discharging (AREA)
  • Toys (AREA)
  • Manufacturing Of Electric Cables (AREA)
  • Paper (AREA)
  • Electric Cable Installation (AREA)
EP92120459A 1992-01-24 1992-12-01 Installation pour alimenter en matière une lance de soufflage Expired - Lifetime EP0553432B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU88056 1992-01-24
LU88056A LU88056A1 (de) 1992-01-24 1992-01-24 Vorrichtung zur medienversorgung einer blaslanze

Publications (2)

Publication Number Publication Date
EP0553432A1 true EP0553432A1 (fr) 1993-08-04
EP0553432B1 EP0553432B1 (fr) 1995-08-23

Family

ID=19731334

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92120459A Expired - Lifetime EP0553432B1 (fr) 1992-01-24 1992-12-01 Installation pour alimenter en matière une lance de soufflage

Country Status (11)

Country Link
US (1) US5333842A (fr)
EP (1) EP0553432B1 (fr)
JP (1) JPH05255728A (fr)
CN (1) CN1033233C (fr)
AT (1) ATE126832T1 (fr)
AU (1) AU652306B2 (fr)
BR (1) BR9300165A (fr)
CA (1) CA2086775A1 (fr)
DE (1) DE59203385D1 (fr)
LU (1) LU88056A1 (fr)
TW (1) TW224986B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997017474A1 (fr) * 1995-11-04 1997-05-15 Thyssen Stahl Ag Dispositif pour remplacement d'une lance de soufflage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU87386A1 (de) * 1988-11-16 1989-11-14 Wurth Paul Sa Automatische lanzenwechselvorrichtung
WO1990005790A1 (fr) * 1988-11-16 1990-05-31 Paul Wurth S.A. Dispositif automatique d'echange de lance
EP0441767A2 (fr) * 1990-02-01 1991-08-14 Voest-Alpine Industrieanlagenbau Gmbh Dispositif d'alimentation des milieux à une lance de soufflage
EP0464427A2 (fr) * 1990-07-04 1992-01-08 Paul Wurth S.A. Dispositif d'accouplement automatique d'une lance d'insufflation à un collecteur

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3342471A (en) * 1964-06-22 1967-09-19 Kaiser Ind Corp Oxygen lance assembly
AT264561B (de) * 1966-11-04 1968-09-10 Voest Ag Vorrichtung zum Heben und Senken von Sauerstofflanzen für Aufblasekonverter
US3480267A (en) * 1967-05-16 1969-11-25 Koppers Co Inc Horizontally movable platform having a vertically movable carriage for oxygen steelmaking operations
LU69797A1 (fr) * 1974-04-05 1974-11-21
JPS5814691Y2 (ja) * 1977-10-18 1983-03-24 株式会社安川電機 回転電機の界磁
JPS60144133A (ja) * 1984-08-15 1985-07-30 Hitachi Ltd 回転電機の界磁
JPS6248168U (fr) * 1985-09-13 1987-03-25
LU87425A1 (de) * 1989-01-16 1989-12-11 Wurth Paul Sa Automatische lanzenwechselvorrichtung
JP2847393B2 (ja) * 1989-08-10 1999-01-20 アイチ―エマソン電機株式会社 永久磁石型回転子
DE4003068C1 (fr) * 1990-02-02 1991-07-25 Voest-Alpine Industrieanlagenbau Ges.M.B.H., Linz, At
JP2524080Y2 (ja) * 1990-10-15 1997-01-29 株式会社明電舎 同期電動機の回転子鉄板
LU87897A1 (de) * 1991-03-01 1992-11-16 Wurth Paul Sa Antrieb fuer automatische lanzenwechselvorrichtungen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU87386A1 (de) * 1988-11-16 1989-11-14 Wurth Paul Sa Automatische lanzenwechselvorrichtung
WO1990005790A1 (fr) * 1988-11-16 1990-05-31 Paul Wurth S.A. Dispositif automatique d'echange de lance
EP0441767A2 (fr) * 1990-02-01 1991-08-14 Voest-Alpine Industrieanlagenbau Gmbh Dispositif d'alimentation des milieux à une lance de soufflage
EP0464427A2 (fr) * 1990-07-04 1992-01-08 Paul Wurth S.A. Dispositif d'accouplement automatique d'une lance d'insufflation à un collecteur

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997017474A1 (fr) * 1995-11-04 1997-05-15 Thyssen Stahl Ag Dispositif pour remplacement d'une lance de soufflage
US6022507A (en) * 1995-11-04 2000-02-08 Thyssen Stahl Ag Exchange device for a blowing lance

Also Published As

Publication number Publication date
ATE126832T1 (de) 1995-09-15
CA2086775A1 (fr) 1993-07-25
LU88056A1 (de) 1993-08-17
CN1074944A (zh) 1993-08-04
AU3050192A (en) 1993-07-29
JPH05255728A (ja) 1993-10-05
DE59203385D1 (de) 1995-09-28
US5333842A (en) 1994-08-02
EP0553432B1 (fr) 1995-08-23
CN1033233C (zh) 1996-11-06
BR9300165A (pt) 1993-07-27
TW224986B (fr) 1994-06-11
AU652306B2 (en) 1994-08-18

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