IN2015DN00505A - - Google Patents

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Publication number
IN2015DN00505A
IN2015DN00505A IN505DEN2015A IN2015DN00505A IN 2015DN00505 A IN2015DN00505 A IN 2015DN00505A IN 505DEN2015 A IN505DEN2015 A IN 505DEN2015A IN 2015DN00505 A IN2015DN00505 A IN 2015DN00505A
Authority
IN
India
Prior art keywords
blast furnace
blowing
coal
interior
hot air
Prior art date
Application number
Inventor
Setsuo Omoto
Keiichi Nakagawa
Tsutomu Hamada
Masakazu Sakaguchi
Original Assignee
Mitsubishi Heavy Ind Ltd
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 Mitsubishi Heavy Ind Ltd filed Critical Mitsubishi Heavy Ind Ltd
Publication of IN2015DN00505A publication Critical patent/IN2015DN00505A/en

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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
    • C21B5/008—Composition or distribution of the charge
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/16—Tuyéres
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/16—Tuyéres
    • C21B7/163—Blowpipe assembly

Landscapes

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

Abstract

Provided is a blast furnace capable of reducing the production costs of pig iron and suppressing the adhesion of blast furnace blowing coal ash and blockages caused by blast furnace blowing coal ash along the path of the blast furnace blowing coal to the interior of the blast furnace body. A blast furnace (100) is equipped with: a blast furnace body (110); material insertion means (111,113) for inserting a material (1) containing iron ore and coal into the interior of the blast furnace body from the top section thereof; hot air blowing means (114,115) for blowing hot air (101) into the interior of the blast furnace body through the tuyere thereof; and blast furnace blowing coal supply means (120, 129) for blowing blast furnace blowing coal (11) into the interior of the blast furnace body through the tuyere thereof. Therein the blast furnace blowing coal supply means blow a blast furnace blowing coal having the proportion of oxygen atoms contained therein (dry base) set to 10 20 wt% and the average pore diameter set to 10 50nm while the hot air blowing means measure the melting point of the ash in the material in advance and blow hot air which is 100 150°C lower than the melting point of the ash.
IN505DEN2015 2012-08-13 2013-04-25 IN2015DN00505A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012179239A JP5958935B2 (en) 2012-08-13 2012-08-13 Pig iron manufacturing method and blast furnace equipment used therefor
PCT/JP2013/062157 WO2014027481A1 (en) 2012-08-13 2013-04-25 Method for producing pig iron, and blast furnace to be used therefor

Publications (1)

Publication Number Publication Date
IN2015DN00505A true IN2015DN00505A (en) 2015-06-26

Family

ID=50285920

Family Applications (1)

Application Number Title Priority Date Filing Date
IN505DEN2015 IN2015DN00505A (en) 2012-08-13 2013-04-25

Country Status (6)

Country Link
US (1) US20150176096A1 (en)
JP (1) JP5958935B2 (en)
KR (1) KR101648683B1 (en)
CN (1) CN104411837B (en)
IN (1) IN2015DN00505A (en)
WO (1) WO2014027481A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5848363B2 (en) * 2012-01-18 2016-01-27 三菱重工業株式会社 Blast furnace equipment

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3165302A (en) * 1960-03-21 1965-01-12 Joy Mfg Co Apparatus for heating blast furnace feed gas
JPH05156330A (en) 1991-12-04 1993-06-22 Sumitomo Metal Ind Ltd Method for injecting pulverized coal from tuyere in blast furnace
JPH09263807A (en) * 1996-03-27 1997-10-07 Nisshin Steel Co Ltd Method for injecting pulverized coal into blast furnace
JPH1152508A (en) 1997-07-29 1999-02-26 Fuji Photo Film Co Ltd Silver halide photosensitive material
US6090182A (en) * 1997-10-29 2000-07-18 Praxair Technology, Inc. Hot oxygen blast furnace injection system
JP4608752B2 (en) * 1999-10-20 2011-01-12 Ｊｆｅスチール株式会社 High reactivity high strength coke for blast furnace and method for producing the same
JP5273166B2 (en) * 2000-08-10 2013-08-28 Ｊｆｅスチール株式会社 Blast furnace operation method by large amount of pulverized coal injection
CN1269971C (en) * 2004-04-09 2006-08-16 刘仁生 Method for optimizing poor coal for blast furnace injection
JP2006028538A (en) * 2004-07-12 2006-02-02 Sumitomo Metal Ind Ltd Method for operating blast furnace using sintered ore excellent in high temperature reducibility
US20060108721A1 (en) * 2004-11-19 2006-05-25 Lew Holdings, Llc Single vessel blast furnace and steel making/gasifying apparatus and process
JP2007169750A (en) * 2005-12-26 2007-07-05 Jfe Steel Kk Method for operating blast furnace
JP4933925B2 (en) * 2007-03-20 2012-05-16 株式会社神戸製鋼所 Powder composite blowing blast furnace operation method
JP5177101B2 (en) * 2008-09-16 2013-04-03 新日鐵住金株式会社 Method for producing highly reactive small coke
CN101476003B (en) * 2009-02-06 2011-05-04 杨子毅 Alkali blast furnace blowing coal based direct reducer and production method thereof
US8999033B2 (en) * 2010-12-15 2015-04-07 Midrex Technologies, Inc. Method and system for producing direct reduced iron and/or hot metal using brown coal
KR101242696B1 (en) * 2010-12-28 2013-03-12 주식회사 포스코 Burning control method of combustion chamber
CN102269757B (en) * 2011-06-30 2014-06-18 首钢总公司 Evaluation method of comprehensive performances of PCI (pulverized coal injection) coal

Also Published As

Publication number Publication date
CN104411837B (en) 2016-05-18
CN104411837A (en) 2015-03-11
KR101648683B1 (en) 2016-08-16
KR20150020248A (en) 2015-02-25
WO2014027481A1 (en) 2014-02-20
JP5958935B2 (en) 2016-08-02
JP2014037559A (en) 2014-02-27
US20150176096A1 (en) 2015-06-25

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