[go: up one dir, main page]

TWI277654B - Method for operating blast furnace - Google Patents

Method for operating blast furnace Download PDF

Info

Publication number
TWI277654B
TWI277654B TW95103037A TW95103037A TWI277654B TW I277654 B TWI277654 B TW I277654B TW 95103037 A TW95103037 A TW 95103037A TW 95103037 A TW95103037 A TW 95103037A TW I277654 B TWI277654 B TW I277654B
Authority
TW
Taiwan
Prior art keywords
reducing agent
blast furnace
gaseous
injection
operating
Prior art date
Application number
TW95103037A
Other languages
Chinese (zh)
Other versions
TW200632102A (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 TW200632102A (en) 2006-09-16
TWI277654B true 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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI803522B (en) * 2017-09-25 2023-06-01 盧森堡商保羅伍斯股份有限公司 Method for producing hot synthesis gas, in particular for use in blast furnace operation

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013094229A1 (en) * 2011-12-21 2013-06-27 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
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
IN2014KN01261A (en) * 2011-12-21 2015-10-16 Jfe Steel Corp
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
JP7028363B2 (en) * 2019-11-25 2022-03-02 Ｊｆｅスチール株式会社 Blast furnace operation method and blast furnace ancillary equipment
WO2021106579A1 (en) * 2019-11-29 2021-06-03 Ｊｆｅスチール株式会社 Method for operating blast furnace, and facility equipped with blast furnace
JP7131694B2 (en) 2019-12-26 2022-09-06 Ｊｆｅスチール株式会社 Blast Furnace Operation Method and Blast Furnace Incidental Equipment
EP4089185A4 (en) * 2020-01-10 2023-08-02 JFE Steel Corporation Blast furnace operation method, and blast furnace ancillary facilities
CN114846159A (en) * 2020-01-23 2022-08-02 杰富意钢铁株式会社 Blast furnace operation method and blast furnace auxiliary equipment

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
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
JPH11241108A (en) * 1997-12-24 1999-09-07 Nippon Steel Corp How to blow pulverized coal 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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI803522B (en) * 2017-09-25 2023-06-01 盧森堡商保羅伍斯股份有限公司 Method for producing hot synthesis gas, in particular for use in blast furnace operation

Also Published As

Publication number Publication date
TW200632102A (en) 2006-09-16
KR100865218B1 (en) 2008-10-23
CN101052730A (en) 2007-10-10
KR20070083479A (en) 2007-08-24
WO2006080563A1 (en) 2006-08-03

Similar Documents

Publication Publication Date Title
TWI277654B (en) Method for operating blast furnace
TR200501408T2 (en) Process for producing cement blended with reduced carbon dioxide emissions.
BRPI0506128A (en) methods of making coal briquettes and of producing cast iron and related equipment
AU2014361206A1 (en) Method for generating synthesis gas in conjunction with a smelting works
WO2011040768A3 (en) Heavy concrete composition using slag by-products
ATE317458T1 (en) PRODUCTION METHOD FOR IMPROVED METALLURGICAL POWDER COMPOSITION AND USE OF THE SAME
UA99945C2 (en) Process for the recirculated gas producing
TW200738889A (en) Injection lance and injection lance equipment for refining process, hot metal desiliconization process, and hot metal pretreatment process
WO2008080922A3 (en) Process for making pig iron in a blast furnace
MY146471A (en) Method for producing foamed slag on high-chromium steel melts in an electric arc furnace
MXPA02007083A (en) Method for treating slags or slag mixtures on an iron bath.
UA97916C2 (en) blast-furnace process with the use of carbon-containing unfired pellets
CN105199806A (en) Combustion-supporting fire coal additive and use method thereof
CN101545023A (en) Smelting process for producing nodular iron castings by using scrap steel
SG170800A1 (en) Composition
TW200604128A (en) High strength ascon composition comprising slag ball and method for producing the same
TW200613284A (en) Mixed solvate of olanzapine, method for preparing it and method for preparing formⅠof olanzapine therefrom
TW200700562A (en) Method and apparatus for the recovery of refractory debris materials and ladle slags as process slags in iron metallurgy production in eafs, and the related metering to the furnace for the formation of the process slag
WO2013057262A3 (en) Desulfurization agent containing bitumen, method for the production thereof, and use thereof
WO2009086461A3 (en) Development of a high strength high toughness bainitic steel
WO2009082122A3 (en) Tuyere assembly
UA38750U (en) Compact-material for ladle treatment of cast-iron
Ma et al. Effect Of Pulverized Coal Size On Combustion Before Tuyere In BF.
UA38416U (en) Method for steelmaking in main open-hearth furnace
BR0014781A (en) Method of promoting the expansion of a slag from steel production, and, use of calcium nitrate

Legal Events

Date Code Title Description
MC4A Revocation of granted patent