EP0992754A3 - Operating process for a shaft furnace - Google Patents

Operating process for a shaft furnace Download PDF

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Publication number
EP0992754A3
EP0992754A3 EP99115253A EP99115253A EP0992754A3 EP 0992754 A3 EP0992754 A3 EP 0992754A3 EP 99115253 A EP99115253 A EP 99115253A EP 99115253 A EP99115253 A EP 99115253A EP 0992754 A3 EP0992754 A3 EP 0992754A3
Authority
EP
European Patent Office
Prior art keywords
oxygen
furnace
containing gas
gas mixture
shaft
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.)
Withdrawn
Application number
EP99115253A
Other languages
German (de)
French (fr)
Other versions
EP0992754A2 (en
Inventor
Georg Dipl.-Ing. Veranneman
Wilfried Dipl.-Ing. Lissack
Reinhard Dipl.-Ing. Strigl
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 Gas AG
Original Assignee
Linde Gas 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 Linde Gas AG filed Critical Linde Gas AG
Publication of EP0992754A2 publication Critical patent/EP0992754A2/en
Publication of EP0992754A3 publication Critical patent/EP0992754A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • 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
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/001—Injecting additional fuel or reducing agents
    • C21B5/003—Injection of pulverulent coal
    • 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
    • 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
    • F27B1/16—Arrangements of tuyeres

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Manufacture Of Iron (AREA)

Abstract

Verfahren zum Betreiben eines Schachtofens, insbesondere eines Kupolofens, zur Erzeugung von Metallen, insbesondere von Gußeisen, und Metalllegierungen, bei dem der Ofenschacht mit einem entsprechenden Einsatz befüllt ist bzw. andauernd oder periodisch befüllt und bodenseitig die Gußeisenschmelze entnommen wird, und wobei dem Ofenschacht, insbesondere in seinem unteren Bereich, kohlenstaubhaltiges Material in staubförmiger Form und Sauerstoff oder ein Sauerstoff-haltiges Gasgemisch zugeführt werden.Method for operating a shaft furnace, in particular a cupola furnace, for Production of metals, especially cast iron, and metal alloys that the furnace shaft is filled with an appropriate insert or continuously or periodically filled and the cast iron melt is removed from the bottom, and the furnace shaft, especially in its lower area, carbon dusty material in dust form and oxygen or a Oxygen-containing gas mixture can be supplied.

Erfindungsgemäß werden das kohlenstaubhaltige Material und der Sauerstoff oder das Sauerstoff-haltige Gasgemisch dem Ofen gepulst zugeführt.According to the coal dust material and the oxygen or the oxygen-containing gas mixture is supplied to the furnace in a pulsed manner.

Hierbei können die Gaspulse des kohlenstaubhaltigen Materials sowie des Sauerstoffs oder des Sauerstoff-haltigen Gasgemisches im wesentlichen zeitgleich oder versetzt zueinander erfolgen.Here, the gas pulses of the pulverized material and the Oxygen or the oxygen-containing gas mixture essentially at the same time or staggered.

Ferner können zusätzlich zu dem kohlenstaubhaltigen Material sowie dem Sauerstoff oder Sauerstoff-haltigen Gasgemisch weitere Komponenten in den Ofenschacht geführt werden.Furthermore, in addition to the pulverized material as well as the oxygen or oxygen-containing gas mixture other components in the furnace shaft be performed.

EP99115253A 1998-08-04 1999-08-02 Operating process for a shaft furnace Withdrawn EP0992754A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1998135271 DE19835271A1 (en) 1998-08-04 1998-08-04 Operation of a shaft furnace for production of cast iron and metal alloys involves pulsed delivery of oxygen-containing gas and materials containing coal dust
DE19835271 1998-08-04

Publications (2)

Publication Number Publication Date
EP0992754A2 EP0992754A2 (en) 2000-04-12
EP0992754A3 true EP0992754A3 (en) 2001-08-08

Family

ID=7876475

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99115253A Withdrawn EP0992754A3 (en) 1998-08-04 1999-08-02 Operating process for a shaft furnace

Country Status (2)

Country Link
EP (1) EP0992754A3 (en)
DE (1) DE19835271A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10249235B4 (en) * 2002-10-23 2005-07-21 Air Liquide Deutschland Gmbh Method for operating a shaft furnace
DE102005053505A1 (en) * 2005-11-09 2007-05-10 At.Protec Technologie Team Gmbh Method for operating a blast furnace and blast furnace suitable for this method
EP1939305A1 (en) * 2006-12-29 2008-07-02 L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Process for making pig iron in a blast furnace
DE102014102913A1 (en) * 2014-03-05 2015-09-10 Thyssenkrupp Ag Method for operating a shaft furnace, in particular a blast furnace

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1503263A (en) * 1975-03-17 1978-03-08 Rourke T Process and apparatus for calcining limestone
US5070797A (en) * 1986-12-24 1991-12-10 Georg Fischer Ag Process and device to feed additives into a shaft or cupola furnace
DE29711593U1 (en) * 1997-07-02 1997-09-04 Westfalen AG, 48155 Münster Device for the thermal treatment of a raw material
EP1035392A2 (en) * 1999-03-05 2000-09-13 Linde Technische Gase GmbH Shaft furnace operating method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1503263A (en) * 1975-03-17 1978-03-08 Rourke T Process and apparatus for calcining limestone
US5070797A (en) * 1986-12-24 1991-12-10 Georg Fischer Ag Process and device to feed additives into a shaft or cupola furnace
DE29711593U1 (en) * 1997-07-02 1997-09-04 Westfalen AG, 48155 Münster Device for the thermal treatment of a raw material
EP1035392A2 (en) * 1999-03-05 2000-09-13 Linde Technische Gase GmbH Shaft furnace operating method

Also Published As

Publication number Publication date
EP0992754A2 (en) 2000-04-12
DE19835271A1 (en) 2000-02-10

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