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
Links
- 239000003245 coal Substances 0.000 abstract 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 239000002893 slag Substances 0.000 abstract 2
- 229910000805 Pig iron Inorganic materials 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 239000000446 fuel Substances 0.000 abstract 1
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
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
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)
- Vertical, Hearth, Or Arc Furnaces (AREA)
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).
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)
| 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)
| 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 | Fine powder melting apparatus including carbon component and fine powder melting method using same |
| JP2000265205A (en) * | 1999-03-15 | 2000-09-26 | Nippon Steel Corp | Blow tuyere |
| US20070290418A1 (en) * | 2006-05-01 | 2007-12-20 | Sierra Energy Corporation | Tuyere For Oxygen Blast Furnace 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 |
-
2012
- 2012-09-20 JP JP2012207273A patent/JP6012359B2/en not_active Expired - Fee Related
-
2013
- 2013-09-10 CN CN201380045513.8A patent/CN104603296A/en active Pending
- 2013-09-10 US US14/428,553 patent/US20150275322A1/en not_active Abandoned
- 2013-09-10 DE DE112013004592.3T patent/DE112013004592T5/en not_active Withdrawn
- 2013-09-10 IN IN2018DEN2015 patent/IN2015DN02018A/en unknown
- 2013-09-10 WO PCT/JP2013/074402 patent/WO2014045945A1/en active Application Filing
- 2013-09-10 KR KR20157006492A patent/KR20150040363A/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| JP6012359B2 (en) | 2016-10-25 |
| DE112013004592T5 (en) | 2015-06-11 |
| KR20150040363A (en) | 2015-04-14 |
| JP2014062291A (en) | 2014-04-10 |
| US20150275322A1 (en) | 2015-10-01 |
| CN104603296A (en) | 2015-05-06 |
| WO2014045945A1 (en) | 2014-03-27 |
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