ATE206768T1 - SLAG STRIPPER SYSTEM FOR THE TRUNK OF A VACUUM TREATMENT VESSEL FOR MELTED STEEL - Google Patents

SLAG STRIPPER SYSTEM FOR THE TRUNK OF A VACUUM TREATMENT VESSEL FOR MELTED STEEL

Info

Publication number
ATE206768T1
ATE206768T1 AT97402772T AT97402772T ATE206768T1 AT E206768 T1 ATE206768 T1 AT E206768T1 AT 97402772 T AT97402772 T AT 97402772T AT 97402772 T AT97402772 T AT 97402772T AT E206768 T1 ATE206768 T1 AT E206768T1
Authority
AT
Austria
Prior art keywords
plungers
scraping
fingers
rakes
external surface
Prior art date
Application number
AT97402772T
Other languages
German (de)
Inventor
Patrick Tassot
Patrick Lebacon
Bernard Fournier
Jean-Claude Lecas
Original Assignee
Prosertec
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 Prosertec filed Critical Prosertec
Application granted granted Critical
Publication of ATE206768T1 publication Critical patent/ATE206768T1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • 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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/10—Handling in a vacuum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
    • F27D2003/0054—Means to move molten metal, e.g. electromagnetic pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D25/00—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/14—Charging or discharging liquid or molten material

Abstract

An installation for cleaning the tubular refractory plungers (12, 13) of a vat (1) for the treatment under vacuum of liquid steel comprising a vat base supporting the plungers (12, 13) arranged vertically and delimiting between them an intermediary space (16). It includes a frame (21) that can be displaced horizontally and vertically and incorporating, at its upper part, some means (30) for scraping from the bottom to the top and simultaneously the external surface of the plungers (12, 13). The means for scraping the plungers (12, 13) are made up of some rakes fitted with scraping fingers, arranged around a circumference and able to be arranged between a retracted position in which the fingers of the rakes are separated from the external surface of the plungers and an active position in which the fingers of the rakes are in contact with the external surface of the plungers. Each rake is formed by a transverse bar and can be displaced between the two positions by a pivoting action generated by, for example, a hydraulic piston. The scraping fingers are mounted at an angle of between 30 and 60 degrees with respect to the horizontal plane and the position of each can be regulated. The frame also incorporates a container for the recovery of the gangue material removed from the plungers and some gunning lances for recoating the plungers.
AT97402772T 1996-11-22 1997-11-18 SLAG STRIPPER SYSTEM FOR THE TRUNK OF A VACUUM TREATMENT VESSEL FOR MELTED STEEL ATE206768T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9614326A FR2756200B1 (en) 1996-11-22 1996-11-22 INSTALLATION FOR CLEANING THE DIVERS OF A LIQUID STEEL VACUUM TREATMENT TANK

Publications (1)

Publication Number Publication Date
ATE206768T1 true ATE206768T1 (en) 2001-10-15

Family

ID=9497930

Family Applications (1)

Application Number Title Priority Date Filing Date
AT97402772T ATE206768T1 (en) 1996-11-22 1997-11-18 SLAG STRIPPER SYSTEM FOR THE TRUNK OF A VACUUM TREATMENT VESSEL FOR MELTED STEEL

Country Status (5)

Country Link
EP (1) EP0844310B1 (en)
AT (1) ATE206768T1 (en)
DE (1) DE69707245T2 (en)
ES (1) ES2166963T3 (en)
FR (1) FR2756200B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20022375U1 (en) * 2000-06-09 2001-08-09 Sms Mevac Gmbh Trunk cleaning device for vacuum degassing systems
DE102007040882A1 (en) * 2007-08-29 2009-03-05 Sms Mevac Gmbh Cleaning device for dip tubes or probes of vacuum degassing plants

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5819446A (en) * 1981-07-25 1983-02-04 Nisshin Steel Co Ltd Removing device for slag in rh furnace or the like
GB8331152D0 (en) * 1983-11-22 1983-12-29 Henderson & Co Ltd John M Vessel nozzle cleaning apparatus
JPS62151260A (en) * 1985-12-25 1987-07-06 Kobe Steel Ltd Device for removing deposit from molten metal immersion pipe
JPH0632842B2 (en) * 1989-04-28 1994-05-02 黒崎窯業株式会社 Equipment for removing deposits from immersion pipes in molten metal processing equipment
JPH0645820B2 (en) * 1989-12-28 1994-06-15 黒崎窯業株式会社 Equipment for removing molten steel suction pipe in vacuum degassing equipment

Also Published As

Publication number Publication date
DE69707245D1 (en) 2001-11-15
EP0844310A1 (en) 1998-05-27
DE69707245T2 (en) 2002-06-27
FR2756200A1 (en) 1998-05-29
FR2756200B1 (en) 1999-04-02
ES2166963T3 (en) 2002-05-01
EP0844310B1 (en) 2001-10-10

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties