BR9804292A - Processo para inserir uma corrente de sopro dentro de um alto-forno. - Google Patents

Processo para inserir uma corrente de sopro dentro de um alto-forno.

Info

Publication number
BR9804292A
BR9804292A BR9804292-0A BR9804292A BR9804292A BR 9804292 A BR9804292 A BR 9804292A BR 9804292 A BR9804292 A BR 9804292A BR 9804292 A BR9804292 A BR 9804292A
Authority
BR
Brazil
Prior art keywords
blast furnace
blowing
hot oxygen
blowing current
fuel
Prior art date
Application number
BR9804292-0A
Other languages
English (en)
Inventor
Michael Francis Riley
Original Assignee
Praxair Technology Inc
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 Praxair Technology Inc filed Critical Praxair Technology Inc
Publication of BR9804292A publication Critical patent/BR9804292A/pt

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
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/001—Injecting additional fuel or reducing agents
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/16—Tuyéres
    • 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
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacture Of Iron (AREA)
  • Air Supply (AREA)
  • Blast Furnaces (AREA)

Abstract

"PROCESSO PARA INSERIR UMA CORRENTE DE SOPRO DENTRO DE UM ALTO-FORNO". Um processo para inserir uma corrente de sopro dentro de um alto-forno no qual combustível e oxigênio quente são inseridos em ar de sopro, estando o oxigênio quente em uma temperatura e velocidade maiores do que aquelas do ar de sopro, e no qual o combustível e o oxigênio quente começam a queimar na corrente de sopro antes de sua entrada dentro do alto-forno.
BR9804292-0A 1997-10-29 1998-10-27 Processo para inserir uma corrente de sopro dentro de um alto-forno. BR9804292A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/959,841 US6090182A (en) 1997-10-29 1997-10-29 Hot oxygen blast furnace injection system

Publications (1)

Publication Number Publication Date
BR9804292A true BR9804292A (pt) 1999-12-21

Family

ID=25502481

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9804292-0A BR9804292A (pt) 1997-10-29 1998-10-27 Processo para inserir uma corrente de sopro dentro de um alto-forno.

Country Status (11)

Country Link
US (1) US6090182A (pt)
EP (1) EP0922772B1 (pt)
JP (1) JP3766553B2 (pt)
KR (1) KR100381931B1 (pt)
CN (1) CN1080313C (pt)
AU (1) AU734732B2 (pt)
BR (1) BR9804292A (pt)
CA (1) CA2251548C (pt)
DE (1) DE69805739T2 (pt)
ES (1) ES2174372T3 (pt)
ID (1) ID21470A (pt)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6206949B1 (en) * 1997-10-29 2001-03-27 Praxair Technology, Inc. NOx reduction using coal based reburning
JP5273166B2 (ja) * 2000-08-10 2013-08-28 Ｊｆｅスチール株式会社 微粉炭の多量吹込みによる高炉操業方法
US6835229B2 (en) 2002-01-22 2004-12-28 Isg Technologies Inc. Method and apparatus for clearing a powder accumulation in a powder delivery tube
AU2003237815B2 (en) * 2002-05-15 2008-07-17 Praxair Technology, Inc. Low nox combustion
CA2485570C (en) 2002-05-15 2009-12-22 Praxair Technology, Inc. Combustion with reduced carbon in the ash
US7232542B2 (en) * 2004-04-05 2007-06-19 Aker Kvaerner Metals, Inc. Preheating cold blast air of a blast furnace for tempering the hot blast temperature
WO2006032961A1 (en) * 2004-08-18 2006-03-30 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Method and apparatus for injecting a gas into a two-phase stream
US20070205543A1 (en) * 2006-03-06 2007-09-06 Lanyi Michael D Oxidant-swirled fossil fuel injector for a shaft furnace
CN101280348A (zh) * 2008-04-23 2008-10-08 沈阳东方钢铁有限公司 高温煤气高炉炼铁工艺
KR101009031B1 (ko) 2008-06-16 2011-01-18 주식회사 포스코 연료취입장치 및 이를 포함하는 용철제조장치
US8105074B2 (en) * 2008-06-30 2012-01-31 Praxair Technology, Inc. Reliable ignition of hot oxygen generator
JP5263430B2 (ja) * 2011-07-15 2013-08-14 Ｊｆｅスチール株式会社 高炉操業方法
JP5974687B2 (ja) * 2011-07-15 2016-08-23 Ｊｆｅスチール株式会社 高炉操業方法
CN102758047A (zh) * 2012-07-30 2012-10-31 中冶南方工程技术有限公司 一种全热氧高炉与竖炉联合生产工艺
CN102758048A (zh) * 2012-07-30 2012-10-31 中冶南方工程技术有限公司 原燃料热装、全热氧高炉与竖炉联合生产工艺
JP5958935B2 (ja) * 2012-08-13 2016-08-02 三菱重工業株式会社 銑鉄製造方法およびこれに使用する高炉設備
EP2719777A1 (en) 2012-10-12 2014-04-16 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Blast-furnace process with coke-oven gas injection and production plant for same
EP2719778A1 (en) 2012-10-12 2014-04-16 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Blast-furnace process with CO2-lean blast furnace gas recycle and production plant for same
EP2719776A1 (en) 2012-10-12 2014-04-16 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Blast furnace process using hot oxygen and plant for same
EP2719779A1 (en) 2012-10-12 2014-04-16 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Blast-furnace process with recycle of a CO-fraction of the blast furnace gas and production plant for same
CN106661640A (zh) * 2014-08-27 2017-05-10 杰富意钢铁株式会社 向氧气高炉吹入粉煤的方法
KR102158227B1 (ko) * 2018-08-02 2020-09-21 주식회사 포스코 풍구 수취입 장치

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3089766A (en) * 1958-01-27 1963-05-14 Chemetron Corp Controlled chemistry cupola
US3214266A (en) * 1962-06-28 1965-10-26 Texaco Development Corp Blast furnace reduction of metal oxides
FR1379127A (fr) * 1963-10-22 1964-11-20 Procédé et dispositif pour injecter séparément l'oxygène dans un haut fourneau sans modification de la construction
CA978354A (en) * 1972-10-19 1975-11-25 Russell D. Smith Method and apparatus for generating a heated oxygen enriched gas stream
US4324583A (en) * 1981-01-21 1982-04-13 Union Carbide Corporation Supersonic injection of oxygen in cupolas
GB8506655D0 (en) * 1985-03-14 1985-04-17 British Steel Corp Smelting shaft furnaces
JPS6227509A (ja) * 1985-07-26 1987-02-05 Nippon Kokan Kk <Nkk> 高炉操業方法
JPS62290841A (ja) * 1986-06-10 1987-12-17 Nippon Kokan Kk <Nkk> 含クロム銑の製造方法
BE1001238A6 (fr) * 1987-12-03 1989-08-29 Centre Rech Metallurgique Procede de reduction des minerais dans un four a cuve.
JPH0212105A (ja) * 1988-06-29 1990-01-17 Nec Corp 複屈折回折格子型偏光子
JPH0215105A (ja) * 1988-07-01 1990-01-18 Nkk Corp 高炉の微粉炭吹込み方法
JPH0778246B2 (ja) * 1988-08-18 1995-08-23 新日本製鐵株式会社 高炉への微粉炭吹込み方法
ES2123018T3 (es) * 1992-07-01 1999-01-01 Wurth Paul Sa Dispositivo para la inyeccion de carbon pulverizado en un crisol de alto horno.
US5266024A (en) * 1992-09-28 1993-11-30 Praxair Technology, Inc. Thermal nozzle combustion method
FR2702221B1 (fr) * 1993-03-03 1995-04-28 Air Liquide Procédé d'obtention de métal au haut-fourneau ou au cubilot.
US5582036A (en) * 1995-08-30 1996-12-10 Praxair Technology, Inc. Cryogenic air separation blast furnace system

Also Published As

Publication number Publication date
ES2174372T3 (es) 2002-11-01
CA2251548C (en) 2003-04-15
CN1080313C (zh) 2002-03-06
DE69805739D1 (de) 2002-07-11
EP0922772B1 (en) 2002-06-05
JP3766553B2 (ja) 2006-04-12
AU734732B2 (en) 2001-06-21
EP0922772A1 (en) 1999-06-16
KR19990037405A (ko) 1999-05-25
ID21470A (id) 1999-06-17
KR100381931B1 (ko) 2003-06-18
US6090182A (en) 2000-07-18
JPH11199907A (ja) 1999-07-27
DE69805739T2 (de) 2003-01-02
AU8954698A (en) 1999-05-20
CA2251548A1 (en) 1999-04-29
CN1219595A (zh) 1999-06-16

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Legal Events

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FF Decision: intention to grant
FG9A Patent or certificate of addition granted
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 27.10.2018