DE59203547D1 - Process for operating a cupola furnace. - Google Patents

Process for operating a cupola furnace.

Info

Publication number
DE59203547D1
DE59203547D1 DE59203547T DE59203547T DE59203547D1 DE 59203547 D1 DE59203547 D1 DE 59203547D1 DE 59203547 T DE59203547 T DE 59203547T DE 59203547 T DE59203547 T DE 59203547T DE 59203547 D1 DE59203547 D1 DE 59203547D1
Authority
DE
Germany
Prior art keywords
cupola furnace
running
formation
operating
fusion zone
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.)
Expired - Fee Related
Application number
DE59203547T
Other languages
German (de)
Inventor
Manfred Dr Dipl 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
Application filed by Linde GmbH filed Critical Linde GmbH
Application granted granted Critical
Publication of DE59203547D1 publication Critical patent/DE59203547D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F27B1/16—Arrangements of tuyeres
    • 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

Landscapes

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

Abstract

The invention relates to a process for running a cupola furnace for the production of cast iron. When running a cupola furnace, formation of CO, accompanied by advantages, occurs in the cupola furnace, above all in the fusion zone. This formation of CO varies with the coke filling level and, in certain operating cases, reaches undesirably low values. In order to counteract this, it is proposed that a coal gas (CO2 or CO) is introduced at a suitable rate into the cupola furnace at a suitable point, preferably in the region of the air inlet zone or fusion zone. <IMAGE>
DE59203547T 1991-07-05 1992-07-03 Process for operating a cupola furnace. Expired - Fee Related DE59203547D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4122381A DE4122381A1 (en) 1991-07-05 1991-07-05 METHOD FOR OPERATING A COUPLING OVEN

Publications (1)

Publication Number Publication Date
DE59203547D1 true DE59203547D1 (en) 1995-10-12

Family

ID=6435565

Family Applications (2)

Application Number Title Priority Date Filing Date
DE4122381A Withdrawn DE4122381A1 (en) 1991-07-05 1991-07-05 METHOD FOR OPERATING A COUPLING OVEN
DE59203547T Expired - Fee Related DE59203547D1 (en) 1991-07-05 1992-07-03 Process for operating a cupola furnace.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE4122381A Withdrawn DE4122381A1 (en) 1991-07-05 1991-07-05 METHOD FOR OPERATING A COUPLING OVEN

Country Status (4)

Country Link
EP (1) EP0521523B1 (en)
AT (1) ATE127580T1 (en)
DE (2) DE4122381A1 (en)
ES (1) ES2079744T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19509366A1 (en) * 1995-03-15 1996-09-19 Linde Ag Iron recovery from dust, esp. fettling dust
PL183679B1 (en) * 1995-08-28 2002-06-28 Linde Gas Ag Method of operating a shaft furnace with oxygen admission and shaft furnace with oxygen admission
DE10117962B4 (en) * 2001-04-10 2006-12-07 At.Pro Tec Technologie-Team Gmbh Process for the thermal treatment of raw materials and for carrying out the process
DE102007025663A1 (en) * 2007-06-01 2008-12-04 Linde Ag Process for controlled coke conversion in cupola furnaces
CN101428342B (en) * 2008-12-18 2013-02-13 高尔荣 Ironmaking casting system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE930930C (en) * 1950-06-10 1955-07-28 Heinrich Dr Ing E H Koppenberg Process for operating a shaft furnace with highly concentrated oxygen
DE1132570B (en) * 1955-03-28 1962-07-05 Ruhrstahl Ag Process for operating blast furnaces, in particular low-shaft furnaces
US3630719A (en) * 1969-04-01 1971-12-28 Chemical Construction Corp Method of operating a cupola furnace
DE2315748A1 (en) * 1973-03-29 1974-12-19 Wests Manchester Ltd Gas fired vertical furnace - with exhaust partly recycled to burners to produce even combustion
US4309024A (en) * 1977-07-18 1982-01-05 Modern Equipment Company Cupola with auxiliary gas generator

Also Published As

Publication number Publication date
EP0521523B1 (en) 1995-09-06
ES2079744T3 (en) 1996-01-16
ATE127580T1 (en) 1995-09-15
DE4122381A1 (en) 1993-01-07
EP0521523A1 (en) 1993-01-07

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: LINDE GAS AG, 82049 HOELLRIEGELSKREUTH, DE

8327 Change in the person/name/address of the patent owner

Owner name: LINDE AG, 65189 WIESBADEN, DE

8339 Ceased/non-payment of the annual fee