TW200632102A - Method for operating blast furnace - Google Patents

Method for operating blast furnace

Info

Publication number
TW200632102A
TW200632102A TW095103037A TW95103037A TW200632102A TW 200632102 A TW200632102 A TW 200632102A TW 095103037 A TW095103037 A TW 095103037A TW 95103037 A TW95103037 A TW 95103037A TW 200632102 A TW200632102 A TW 200632102A
Authority
TW
Taiwan
Prior art keywords
reducing agent
blast furnace
gaseous
injection
operating
Prior art date
Application number
TW095103037A
Other languages
Chinese (zh)
Other versions
TWI277654B (en
Inventor
Ryota Murai
Michitaka Sato
Tatsuro Ariyama
Shinji Hasegawa
Akio Shimomura
Original Assignee
Jfe Steel Corp
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 Jfe Steel Corp filed Critical Jfe Steel Corp
Publication of TW200632102A publication Critical patent/TW200632102A/en
Application granted granted Critical
Publication of TWI277654B publication Critical patent/TWI277654B/en

Links

Classifications

    • 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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/02—Making special pig-iron, e.g. by applying additives, e.g. oxides of other metals
    • C21B5/023—Injection of the additives into the melting part
    • C21B5/026—Injection of the additives into the melting part of plastic material

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Iron (AREA)

Abstract

The present invention provides a method for operating a blast furnace, which improves combustion characteristics during mixed combustion of a solid reducing agent with a gaseous reducing agent by defining an appropriate range of the amount of injection of a solid reducing agent with a gaseous reducing agent, wherein the method is practicable by using actual equipment, specifically, in the method for operating a blast furnace by injecting a solid reducing agent and a gaseous reducing agent as auxiliary reducing agents, through a blast furnace tuyere, the injection is carried out by injecting the gaseous reducing agent and the solid reducing agent with each of an injection ratio which is adjusted to 10 to 80 kg/t-p and 50 to 150 kg/t-p, respectively.
TW95103037A 2005-01-31 2006-01-26 Method for operating blast furnace TWI277654B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005024495 2005-01-31

Publications (2)

Publication Number Publication Date
TW200632102A true TW200632102A (en) 2006-09-16
TWI277654B TWI277654B (en) 2007-04-01

Family

ID=36740571

Family Applications (1)

Application Number Title Priority Date Filing Date
TW95103037A TWI277654B (en) 2005-01-31 2006-01-26 Method for operating blast furnace

Country Status (4)

Country Link
KR (1) KR100865218B1 (en)
CN (1) CN101052730A (en)
TW (1) TWI277654B (en)
WO (1) WO2006080563A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI487791B (en) * 2011-12-21 2015-06-11 Jfe Steel Corp Blast furnace operation method
TWI495729B (en) * 2011-12-21 2015-08-11 Jfe Steel Corp Blast furnace operation method

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5699834B2 (en) * 2011-07-08 2015-04-15 Ｊｆｅスチール株式会社 Blast furnace operation method
JP5699832B2 (en) * 2011-07-08 2015-04-15 Ｊｆｅスチール株式会社 Blast furnace operation method
JP5699833B2 (en) * 2011-07-08 2015-04-15 Ｊｆｅスチール株式会社 Blast furnace operation method
JP5546675B1 (en) * 2012-12-07 2014-07-09 新日鉄住金エンジニアリング株式会社 Blast furnace operating method and hot metal manufacturing method
LU100453B1 (en) * 2017-09-25 2019-03-29 Wurth Paul Sa Method for Producing a Synthesis Gas, in particular for use in Blast Furnace Operation

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3176680B2 (en) * 1992-01-06 2001-06-18 新日本製鐵株式会社 Blast furnace operation method
JPH11241108A (en) * 1997-12-24 1999-09-07 Nippon Steel Corp Method for injecting pulverized fine coal into blast furnace
JP3771728B2 (en) * 1997-12-24 2006-04-26 新日本製鐵株式会社 Blowing pulverized coal and reducing gas into the blast furnace
JP4774589B2 (en) * 2000-11-07 2011-09-14 Ｊｆｅスチール株式会社 Simultaneous injection of pulverized coal and synthetic resin in a blast furnace

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI487791B (en) * 2011-12-21 2015-06-11 Jfe Steel Corp Blast furnace operation method
TWI495729B (en) * 2011-12-21 2015-08-11 Jfe Steel Corp Blast furnace operation method

Also Published As

Publication number Publication date
KR20070083479A (en) 2007-08-24
WO2006080563A1 (en) 2006-08-03
TWI277654B (en) 2007-04-01
KR100865218B1 (en) 2008-10-23
CN101052730A (en) 2007-10-10

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Legal Events

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MC4A Revocation of granted patent