IN2015DN02018A - - Google Patents

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Publication number
IN2015DN02018A
IN2015DN02018A IN2018DEN2015A IN2015DN02018A IN 2015DN02018 A IN2015DN02018 A IN 2015DN02018A IN 2018DEN2015 A IN2018DEN2015 A IN 2018DEN2015A IN 2015DN02018 A IN2015DN02018 A IN 2015DN02018A
Authority
IN
India
Prior art keywords
pulverized coal
pipe
internal
tuyere
hot air
Prior art date
Application number
Inventor
Masakazu Sakaguchi
Tsutomu Hamada
Takeshi Okada
Setsuo Omoto
Keiichi Nakagawa
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 IN2015DN02018A publication Critical patent/IN2015DN02018A/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/16—Tuyéres
    • C21B7/163—Blowpipe assembly
    • 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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/16—Tuyéres

Abstract

Provided is a blow pipe structure for a blast furnace facility configured so as to be capable of suppressing slag adhesion by using a simple structure even if pulverized coal with an unadjusted softening temperature is used. The blow pipe structure is attached to a tuyere (22) in a blast furnace main body (20) that produces pig iron from iron ore. The blow pipe structure injects auxiliary fuel pulverized coal (3) together with hot air (2) and includes a component that melts on to the pulverized coal (3) slag as a result of the hot air (2) and/or combustion heat from the pulverized coal (3). The blow pipe structure has an internal/external double pipe structure having an internal pipe (30b) that continues from a header pipe (41) that supplies the hot air (2) to the vicinity of the tuyere (22) and opens said internal pipe (30b) being provided inside an external pipe (30a) that continues from the header pipe (41) to the tuyere (22). A pulverized coal outlet (31a) for an injection lance (31) into which the pulverized coal (3) is inserted opens to the inside of the internal pipe (30b).
IN2018DEN2015 2012-09-20 2013-09-10 IN2015DN02018A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012207273A JP6012359B2 (en) 2012-09-20 2012-09-20 Blow pipe structure
PCT/JP2013/074402 WO2014045945A1 (en) 2012-09-20 2013-09-10 Blow-pipe structure

Publications (1)

Publication Number Publication Date
IN2015DN02018A true IN2015DN02018A (en) 2015-08-14

Family

ID=50341259

Family Applications (1)

Application Number Title Priority Date Filing Date
IN2018DEN2015 IN2015DN02018A (en) 2012-09-20 2013-09-10

Country Status (7)

Country Link
US (1) US20150275322A1 (en)
JP (1) JP6012359B2 (en)
KR (1) KR20150040363A (en)
CN (1) CN104603296A (en)
DE (1) DE112013004592T5 (en)
IN (1) IN2015DN02018A (en)
WO (1) WO2014045945A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6057642B2 (en) * 2012-09-20 2017-01-11 三菱重工業株式会社 Slag removing device and slag removing method
KR102348088B1 (en) * 2017-01-02 2022-01-10 삼성전자주식회사 Clothing drying apparatus

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2761885B2 (en) * 1988-04-21 1998-06-04 日本鋼管株式会社 Pulverized coal burner
KR970009084B1 (en) * 1994-12-29 1997-06-05 김만제 Apparatus for melting fine coals and method of melting the same using the apparatus
JP2000265205A (en) * 1999-03-15 2000-09-26 Nippon Steel Corp Blasting tuyere
WO2007130362A2 (en) * 2006-05-01 2007-11-15 Sierra Energy Tuyere for oxygen blast furnance/converter system
CN102312029A (en) * 2011-01-24 2012-01-11 张昭贵 Air supplying device of blast furnace as well as combustion method and oxygen-enriching method of injected coal powder thereof
JP5775476B2 (en) * 2012-03-06 2015-09-09 新日鐵住金株式会社 Reducing gas blowing method and blowing lance from blast furnace tuyere

Also Published As

Publication number Publication date
WO2014045945A1 (en) 2014-03-27
KR20150040363A (en) 2015-04-14
JP6012359B2 (en) 2016-10-25
CN104603296A (en) 2015-05-06
DE112013004592T5 (en) 2015-06-11
US20150275322A1 (en) 2015-10-01
JP2014062291A (en) 2014-04-10

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