EP0336121A3 - Process for operating a cupola furnace - Google Patents

Process for operating a cupola furnace Download PDF

Info

Publication number
EP0336121A3
EP0336121A3 EP19890103823 EP89103823A EP0336121A3 EP 0336121 A3 EP0336121 A3 EP 0336121A3 EP 19890103823 EP19890103823 EP 19890103823 EP 89103823 A EP89103823 A EP 89103823A EP 0336121 A3 EP0336121 A3 EP 0336121A3
Authority
EP
European Patent Office
Prior art keywords
cast iron
cupola furnace
produced
carbon
operating
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
EP19890103823
Other languages
German (de)
French (fr)
Other versions
EP0336121A2 (en
EP0336121B1 (en
Inventor
Manfred Dr.-Ing. Rossmann
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.)
Linde GmbH
Original Assignee
Linde GmbH
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=6351259&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0336121(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Linde GmbH filed Critical Linde GmbH
Publication of EP0336121A2 publication Critical patent/EP0336121A2/en
Publication of EP0336121A3 publication Critical patent/EP0336121A3/en
Application granted granted Critical
Publication of EP0336121B1 publication Critical patent/EP0336121B1/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Classifications

    • 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
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B1/20—Arrangements of devices for charging
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B11/00—Making pig-iron other than in blast furnaces
    • C21B11/02—Making pig-iron other than in blast furnaces in low shaft furnaces or shaft furnaces
    • 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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/08—Manufacture of cast-iron

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Secondary Cells (AREA)
  • Glass Compositions (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Abstract

In a process for producing cast iron in various grades of different carbon contents, a cast iron grade of a defined charge make-up, essentially consisting of defined proportions of iron, coke and limestone, is produced. A different cast iron grade requires a charge of correspondingly different composition. To make the operation of a cupola furnace more flexible, carbon-containing material is introduced into the cupola furnace in the form of dust to influence the carbon content of the iron produced, namely in a quantity depending on the carbon content of the cast iron grade to be produced.
EP89103823A 1988-03-31 1989-03-04 Process for operating a cupola furnace Revoked EP0336121B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3811166 1988-03-31
DE3811166A DE3811166A1 (en) 1988-03-31 1988-03-31 METHOD FOR OPERATING A KUPOLOF

Publications (3)

Publication Number Publication Date
EP0336121A2 EP0336121A2 (en) 1989-10-11
EP0336121A3 true EP0336121A3 (en) 1991-04-03
EP0336121B1 EP0336121B1 (en) 1994-09-28

Family

ID=6351259

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89103823A Revoked EP0336121B1 (en) 1988-03-31 1989-03-04 Process for operating a cupola furnace

Country Status (5)

Country Link
EP (1) EP0336121B1 (en)
AT (1) ATE112325T1 (en)
BR (1) BR8901468A (en)
DE (2) DE3811166A1 (en)
ZA (1) ZA892304B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4109214A1 (en) * 1991-03-21 1992-09-24 Linde Ag METHOD FOR OPERATING A COUPLING OVEN
DE4310931C2 (en) * 1993-04-02 1999-04-15 Air Prod Gmbh Method and device for disposing of dusts by burning / slagging in a cupola furnace
DE19646802A1 (en) * 1996-11-13 1998-05-14 Messer Griesheim Gmbh Method and device for operating a shaft furnace

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE55049C (en) * A. DAUBER in Bochum Process for the direct production of any type of iron in the blast furnace
GB109452A (en) * 1916-09-07 1900-01-01
GB157397A (en) * 1919-04-25 1922-07-10 Lucien Paul Basset Direct production of iron or steel, and the like
FR652670A (en) * 1928-04-13 1929-03-12 Pont A Mousson Fond Cupola melting process
DE822089C (en) * 1948-10-02 1951-11-22 Thyssensche Gas Und Wasserwerk Process for the direct extraction of steel from iron ores and scrap
DE1433357A1 (en) * 1964-12-09 1968-12-19 Alfred Rexroth Process for partially replacing the Gattierkokses in Metallreduzieroefen with coal or coke powder pressed into the nozzle zone
US4198228A (en) * 1975-10-24 1980-04-15 Jordan Robert K Carbonaceous fines in an oxygen-blown blast furnace
WO1986005520A1 (en) * 1985-03-14 1986-09-25 British Steel Corporation Improvements in or relating to ironmaking by means of a smelting shaft furnace

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE55049C (en) * A. DAUBER in Bochum Process for the direct production of any type of iron in the blast furnace
GB109452A (en) * 1916-09-07 1900-01-01
GB157397A (en) * 1919-04-25 1922-07-10 Lucien Paul Basset Direct production of iron or steel, and the like
FR652670A (en) * 1928-04-13 1929-03-12 Pont A Mousson Fond Cupola melting process
DE822089C (en) * 1948-10-02 1951-11-22 Thyssensche Gas Und Wasserwerk Process for the direct extraction of steel from iron ores and scrap
DE1433357A1 (en) * 1964-12-09 1968-12-19 Alfred Rexroth Process for partially replacing the Gattierkokses in Metallreduzieroefen with coal or coke powder pressed into the nozzle zone
US4198228A (en) * 1975-10-24 1980-04-15 Jordan Robert K Carbonaceous fines in an oxygen-blown blast furnace
WO1986005520A1 (en) * 1985-03-14 1986-09-25 British Steel Corporation Improvements in or relating to ironmaking by means of a smelting shaft furnace

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
GIESSEREI, Band 75, Nr. 1, 11. Januar 1988, Seiten 12-16, Düsseldorf, DE; M. ROSSMANN: "Gleichzeitiges Einblasen von Sauerstoff und Kohlenstaub in den Kupolofen" *

Also Published As

Publication number Publication date
ZA892304B (en) 1989-11-29
EP0336121A2 (en) 1989-10-11
BR8901468A (en) 1989-11-14
EP0336121B1 (en) 1994-09-28
DE58908426D1 (en) 1994-11-03
ATE112325T1 (en) 1994-10-15
DE3811166A1 (en) 1989-10-19

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