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IT1256135B - INJECTION PROCESS OF COMBUSTION GAS AND ADDITIVES IN A METAL MELTING FURNACE, AND MELTING FURNACE - Google Patents

INJECTION PROCESS OF COMBUSTION GAS AND ADDITIVES IN A METAL MELTING FURNACE, AND MELTING FURNACE

Info

Publication number
IT1256135B
IT1256135B ITMI922091A ITMI922091A IT1256135B IT 1256135 B IT1256135 B IT 1256135B IT MI922091 A ITMI922091 A IT MI922091A IT MI922091 A ITMI922091 A IT MI922091A IT 1256135 B IT1256135 B IT 1256135B
Authority
IT
Italy
Prior art keywords
melting furnace
additives
combustion gas
injection process
metal
Prior art date
Application number
ITMI922091A
Other languages
Italian (it)
Original Assignee
Air Liquide
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 Air Liquide filed Critical Air Liquide
Publication of ITMI922091A0 publication Critical patent/ITMI922091A0/en
Publication of ITMI922091A1 publication Critical patent/ITMI922091A1/en
Application granted granted Critical
Publication of IT1256135B publication Critical patent/IT1256135B/en

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 specially adapted for furnaces of these types
    • F27B1/16—Arrangements of tuyeres
    • 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
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/001—Injecting additional fuel or reducing agents
    • C21B5/003—Injection of pulverulent coal

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)
  • Manufacture Of Iron (AREA)

Abstract

Gli ugelli (2) che iniettano nel forno (1) dei getti di gas comburente e di additivi, per esempio del carbone polverizzato, sono orientati per iniettare i getti con una componente tangenziale in modo che le zone di combustione a valle dei differenti ugelli si sovrappongono parzialmente per creare un moto vorticoso e offrire un migliore tempo di miscelazione e di combustione.Applicazione in particolare agli altiforni.The nozzles (2) which inject into the furnace (1) jets of combustive gas and additives, for example of pulverized coal, are oriented to inject the jets with a tangential component so that the combustion zones downstream of the different nozzles are partially overlap to create a swirling motion and offer a better mixing and combustion time. Application in particular to blast furnaces.

ITMI922091A 1991-09-17 1992-09-09 INJECTION PROCESS OF COMBUSTION GAS AND ADDITIVES IN A METAL MELTING FURNACE, AND MELTING FURNACE IT1256135B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9111412A FR2681418A1 (en) 1991-09-17 1991-09-17 Method of injecting oxidant gas and additives into a metal-smelting furnace, and smelting furnace

Publications (3)

Publication Number Publication Date
ITMI922091A0 ITMI922091A0 (en) 1992-09-09
ITMI922091A1 ITMI922091A1 (en) 1994-03-09
IT1256135B true IT1256135B (en) 1995-11-29

Family

ID=9416994

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI922091A IT1256135B (en) 1991-09-17 1992-09-09 INJECTION PROCESS OF COMBUSTION GAS AND ADDITIVES IN A METAL MELTING FURNACE, AND MELTING FURNACE

Country Status (3)

Country Link
BE (1) BE1006250A3 (en)
FR (1) FR2681418A1 (en)
IT (1) IT1256135B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4422694C2 (en) * 1993-01-20 2002-03-14 Hans Ulrich Feustel Nozzle system for a device for melting ferrous metal materials in a coke-heated cupola furnace
WO1996000798A1 (en) * 1994-06-29 1996-01-11 Ingitec Gbr Nozzle system for a device for melting iron metallic materials in a coke-heated cupola furnace
US5992335A (en) 1996-09-13 1999-11-30 Nkk Corporation Method of blowing synthetic resin into furnace and apparatus therefor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2124437A (en) * 1936-01-10 1938-07-19 Steinbacher Karl Blast furnace and tuyere structure and method of operation
GB522098A (en) * 1937-10-06 1940-06-10 Frank Hodson Improvements relating to the reduction of ores
DE1508013A1 (en) * 1966-09-19 1970-06-04 Joseph Degen Procedure for operating blast furnaces
DE1508016A1 (en) * 1966-10-31 1972-02-10 Joseph Degen Procedure for operating blast furnaces
JPS5448612A (en) * 1977-09-26 1979-04-17 Nippon Steel Corp Air blasting in shaft furnace
JPS63166914A (en) * 1986-12-27 1988-07-11 Nkk Corp High oxygen-rich blasting blast furnace

Also Published As

Publication number Publication date
BE1006250A3 (en) 1994-07-05
ITMI922091A1 (en) 1994-03-09
ITMI922091A0 (en) 1992-09-09
FR2681418A1 (en) 1993-03-19

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Legal Events

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