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
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
- C21B5/008—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.
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)
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)
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 |
-
2012
- 2012-08-13 JP JP2012179239A patent/JP5958935B2/en not_active Expired - Fee Related
-
2013
- 2013-04-25 CN CN201380035116.2A patent/CN104411837B/en not_active Expired - Fee Related
- 2013-04-25 KR KR1020157001014A patent/KR101648683B1/en active IP Right Grant
- 2013-04-25 IN IN505DEN2015 patent/IN2015DN00505A/en unknown
- 2013-04-25 WO PCT/JP2013/062157 patent/WO2014027481A1/en active Application Filing
- 2013-04-25 US US14/413,879 patent/US20150176096A1/en not_active Abandoned
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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