EP0561181A3 - - Google Patents

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Publication number
EP0561181A3
EP0561181A3 EP19930102819 EP93102819A EP0561181A3 EP 0561181 A3 EP0561181 A3 EP 0561181A3 EP 19930102819 EP19930102819 EP 19930102819 EP 93102819 A EP93102819 A EP 93102819A EP 0561181 A3 EP0561181 A3 EP 0561181A3
Authority
EP
European Patent Office
Prior art keywords
tap pipe
melt
sections
flow
cross
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
EP19930102819
Other versions
EP0561181A2 (en
EP0561181B1 (en
Inventor
Hans Rothfuss
Guenther Haubold
Dieter Bach
Werner Glasmacher
Dieter Stuesser
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.)
Didier Werke AG
Original Assignee
Didier Werke 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
Application filed by Didier Werke AG filed Critical Didier Werke AG
Publication of EP0561181A2 publication Critical patent/EP0561181A2/en
Publication of EP0561181A3 publication Critical patent/EP0561181A3/xx
Application granted granted Critical
Publication of EP0561181B1 publication Critical patent/EP0561181B1/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
    • C21C5/4653—Tapholes; Opening or plugging thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/19—Arrangements of devices for discharging
    • 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
    • F27D3/15—Tapping equipment; Equipment for removing or retaining slag
    • F27D3/1509—Tapping equipment
    • F27D3/1518—Tapholes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Discharge Heating (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Abstract

A tap pipe for a converter or an electric arc furnace should achieve tapping times which are the same as far as possible during as many tappings as possible. For this purpose, the flow cross-sections at the various heights of the tap pipe (3) are, at least in the outflow zone (11) of the tap pipe (3), approximately equal to the cross-sections of that flow profile (So) of the melt which results at a vertical flow of the melt with a bath level of between 30% and 70% of the maximum bath level height (xm). <IMAGE>
EP93102819A 1992-03-17 1993-02-24 Tap pipe for a converter or an electric arc furnace Expired - Lifetime EP0561181B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4208520A DE4208520C2 (en) 1992-03-17 1992-03-17 Tapping tube on a converter or arc furnace
DE4208520 1992-03-17

Publications (3)

Publication Number Publication Date
EP0561181A2 EP0561181A2 (en) 1993-09-22
EP0561181A3 true EP0561181A3 (en) 1994-02-02
EP0561181B1 EP0561181B1 (en) 1996-10-02

Family

ID=6454282

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93102819A Expired - Lifetime EP0561181B1 (en) 1992-03-17 1993-02-24 Tap pipe for a converter or an electric arc furnace

Country Status (6)

Country Link
US (1) US5310164A (en)
EP (1) EP0561181B1 (en)
AT (1) ATE143702T1 (en)
DE (2) DE4208520C2 (en)
ES (1) ES2094946T3 (en)
ZA (1) ZA931903B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19504654A1 (en) * 1995-02-13 1996-08-22 Didier Werke Ag Method and device for repairing a metallurgical vessel
GB9819191D0 (en) * 1998-09-04 1998-10-28 Mills Stephen D Unibore interchangable nozzle system
US6350293B1 (en) 1999-02-23 2002-02-26 General Electric Company Bottom pour electroslag refining systems and methods
DE102004027440B3 (en) * 2004-06-04 2005-06-16 Refractory Intellectual Property Gmbh & Co. Kg Process to optimize the geometry of a passage transporting molten metal from a converter furnace to an extrusion assembly involves using a discharge passage which conforms to a specific mathematical formula
AU2009224303C1 (en) * 2008-03-14 2011-03-10 Krosakiharima Corporation Upper nozzle
CN115537497B (en) * 2022-10-20 2023-03-10 营口理工学院 Eddy current erosion resistant EBT steel-tapping hole tail brick for electric furnace and preparation method and application thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0057946A1 (en) * 1981-02-05 1982-08-18 Veitscher Magnesitwerke-Actien-Gesellschaft Tapping assembly for converters
EP0414308A1 (en) * 1989-08-21 1991-02-27 Hoogovens Groep B.V. Tap hole construction of a metallurgical vessel, method of renewing it and brick for use with it

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4634106A (en) * 1984-06-18 1987-01-06 Labate Ii Michael D Device for placing slag retention means in tapping converter
US4756452A (en) * 1986-11-13 1988-07-12 Shinagawa Refractories Co., Ltd. Molten metal pouring nozzle
DE3843545A1 (en) * 1988-12-23 1990-06-28 Didier Werke Ag Tapping channel for metallurgical vessels

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0057946A1 (en) * 1981-02-05 1982-08-18 Veitscher Magnesitwerke-Actien-Gesellschaft Tapping assembly for converters
EP0414308A1 (en) * 1989-08-21 1991-02-27 Hoogovens Groep B.V. Tap hole construction of a metallurgical vessel, method of renewing it and brick for use with it

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DIETRICH SUCKER ET AL.: "Strömungsuntersuchungen für schmelzmetallurgische Prpzesse", STAHL UND EISEN., vol. 105, no. 14, 22 July 1985 (1985-07-22), DUSSELDORF DE, pages 765 - 769 *
FRANZ-JOSEF FINGERHUT ET AL.: "Optimierte Abstichzeiten und hohe Feuerfeststandzeiten durch neues Konverterabstichsystem", STAHL UND EISEN., vol. 112, no. 6, 15 June 1992 (1992-06-15), DUSSELDORF DE, pages 89 - 94, XP000278578 *

Also Published As

Publication number Publication date
ATE143702T1 (en) 1996-10-15
EP0561181A2 (en) 1993-09-22
EP0561181B1 (en) 1996-10-02
US5310164A (en) 1994-05-10
DE59304013D1 (en) 1996-11-07
DE4208520C2 (en) 1994-10-27
ES2094946T3 (en) 1997-02-01
DE4208520A1 (en) 1993-09-23
ZA931903B (en) 1993-10-06

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