EP0992753A3 - Operating process for a shaft furnace and shaft furnace - Google Patents

Operating process for a shaft furnace and shaft furnace Download PDF

Info

Publication number
EP0992753A3
EP0992753A3 EP99115252A EP99115252A EP0992753A3 EP 0992753 A3 EP0992753 A3 EP 0992753A3 EP 99115252 A EP99115252 A EP 99115252A EP 99115252 A EP99115252 A EP 99115252A EP 0992753 A3 EP0992753 A3 EP 0992753A3
Authority
EP
European Patent Office
Prior art keywords
oxygen
furnace
lances
shaft
shaft furnace
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.)
Ceased
Application number
EP99115252A
Other languages
German (de)
French (fr)
Other versions
EP0992753A2 (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 GmbH
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
Priority claimed from DE19860281A external-priority patent/DE19860281A1/en
Application filed by Linde Gas AG filed Critical Linde Gas AG
Publication of EP0992753A2 publication Critical patent/EP0992753A2/en
Publication of EP0992753A3 publication Critical patent/EP0992753A3/en
Ceased 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
    • 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
    • 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
    • F27B1/26—Arrangements of controlling devices
    • 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
    • F27D3/16—Introducing a fluid jet or current into the charge
    • 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
    • F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
    • F27D7/02—Supplying steam, vapour, gases, or liquids
    • 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
    • F27D3/16—Introducing a fluid jet or current into the charge
    • F27D2003/162—Introducing a fluid jet or current into the charge the fluid being an oxidant or a fuel
    • F27D2003/163—Introducing a fluid jet or current into the charge the fluid being an oxidant or a fuel the fluid being an oxidant
    • F27D2003/164—Oxygen
    • 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
    • F27D3/16—Introducing a fluid jet or current into the charge
    • F27D2003/162—Introducing a fluid jet or current into the charge the fluid being an oxidant or a fuel
    • F27D2003/165—Introducing a fluid jet or current into the charge the fluid being an oxidant or a fuel the fluid being a fuel

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Furnace Details (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, wobei dem Ofenschacht, insbesondere in seinem unteren Bereich, Sauerstoff oder ein Sauerstoff-haltiges Gasgemisch über mehrere im wesentlichen gleichmäßig über den Umfang des Ofens angeordnete Anzahl n von Düsen und/oder Lanzen zugeführt wird. Erfindungsgemäß werden maximal n - 1 Düsen und/oder Lanzen zeitgleich mit dem Sauerstoff oder Sauerstoff-haltigen Gasgemisch beaufschlagt.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, the furnace shaft, especially in its lower region, oxygen or an oxygen-containing gas mixture over several substantially uniformly number n of nozzles and / or lances arranged around the circumference of the furnace becomes. According to the invention, a maximum of n - 1 nozzles and / or lances are used at the same time the oxygen or oxygen-containing gas mixture.

Darüber hinaus kann die Zuführung des Sauerstoffs oder Sauerstoff-haltigen Gasgemisches gepulst erfolgen.In addition, the supply of oxygen or oxygen-containing Gas mixtures are pulsed.

Der erfindungsgemäße Schachtofen zeichnet sich dadurch aus, daß die Zuführvorrichtungen als Sauerstofflanzen mit jeweils wenigstens zwei Düsenaufsätzen ausgebildet sind. Hierbei können die Sauerstofflanzen dreh- und/oder verschiebbar angeordnet werden.The shaft furnace according to the invention is characterized in that the Feeders as oxygen lances, each with at least two Nozzle attachments are formed. Here, the oxygen lances can rotate and / or be slidably arranged.

EP99115252A 1998-08-04 1999-08-02 Operating process for a shaft furnace and shaft furnace Ceased EP0992753A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19835270 1998-08-04
DE19835270 1998-08-04
DE19860281 1998-12-23
DE19860281A DE19860281A1 (en) 1998-08-04 1998-12-23 Operation of a shaft furnace for production of metals involves use of, at most, all but one of the nozzles and/or lances on the furnace circumference for delivery of oxygen or a gas mixture containing oxygen into the furnace

Publications (2)

Publication Number Publication Date
EP0992753A2 EP0992753A2 (en) 2000-04-12
EP0992753A3 true EP0992753A3 (en) 2001-08-08

Family

ID=26047929

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99115252A Ceased EP0992753A3 (en) 1998-08-04 1999-08-02 Operating process for a shaft furnace and shaft furnace

Country Status (1)

Country Link
EP (1) EP0992753A3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005031019A1 (en) * 2005-07-02 2007-01-11 Messer France S.A.S Method for ultrasonic injection of an oxidizing agent into a melting furnace

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5558307A (en) * 1978-10-25 1980-05-01 Sumitomo Metal Ind Ltd Blasting method for blast furnace
JPS55158204A (en) * 1979-05-30 1980-12-09 Sumitomo Metal Ind Ltd Blast furnace operating method
US5451034A (en) * 1992-07-01 1995-09-19 Paul Wurth S.A. Device for the injection of pulverized coal into a blast furnace crucible
DE29711593U1 (en) * 1997-07-02 1997-09-04 Westfalen AG, 48155 Münster Device for the thermal treatment of a raw material
EP1035221A2 (en) * 1999-03-05 2000-09-13 Linde Technische Gase GmbH Burner, shaft furnace and shaft furnace operating method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5558307A (en) * 1978-10-25 1980-05-01 Sumitomo Metal Ind Ltd Blasting method for blast furnace
JPS55158204A (en) * 1979-05-30 1980-12-09 Sumitomo Metal Ind Ltd Blast furnace operating method
US5451034A (en) * 1992-07-01 1995-09-19 Paul Wurth S.A. Device for the injection of pulverized coal into a blast furnace crucible
DE29711593U1 (en) * 1997-07-02 1997-09-04 Westfalen AG, 48155 Münster Device for the thermal treatment of a raw material
EP1035221A2 (en) * 1999-03-05 2000-09-13 Linde Technische Gase GmbH Burner, shaft furnace and shaft furnace operating method

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 004, no. 093 (C - 017) 5 July 1980 (1980-07-05) *
PATENT ABSTRACTS OF JAPAN vol. 005, no. 031 (C - 045) 25 February 1981 (1981-02-25) *

Also Published As

Publication number Publication date
EP0992753A2 (en) 2000-04-12

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