KR20000069180A - 산화물의 환원용 회전 노상로의 조업방법 - Google Patents
산화물의 환원용 회전 노상로의 조업방법 Download PDFInfo
- Publication number
- KR20000069180A KR20000069180A KR1019997004741A KR19997004741A KR20000069180A KR 20000069180 A KR20000069180 A KR 20000069180A KR 1019997004741 A KR1019997004741 A KR 1019997004741A KR 19997004741 A KR19997004741 A KR 19997004741A KR 20000069180 A KR20000069180 A KR 20000069180A
- Authority
- KR
- South Korea
- Prior art keywords
- coal
- analytical
- furnace
- car
- mixed layer
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/10—Making spongy iron or liquid steel, by direct processes in hearth-type furnaces
- C21B13/105—Rotary hearth-type furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/10—Making spongy iron or liquid steel, by direct processes in hearth-type furnaces
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Iron (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Tunnel Furnaces (AREA)
Abstract
Description
결정수% | T. Fe% | FeO% | SiO2% | Al2O3% | CaO% | MgO% | P% | S% |
3.25 | 62.30 | 0.11 | 4.31 | 2.60 | 0.04 | 0.05 | 0.075 | 0.014 |
Claims (5)
- 분광석과 분석탄 및 석탄챠 (coal char) 를 원료로 하여, 이들 원료를 수평하게 이동하는 노상 위로 공급하여 층 형상으로 적층하고, 노내 상측으로부터의 복사전열에 의해 광석의 환원을 실시함에 있어서,분광석과 석탄챠의 혼합층과 분석탄층을 각각 별도의 층으로 적층하고, 분광석의 환원을 실시함과 동시에 분석탄을 열분해하여 석탄챠로 하는 것을 특징으로 하는 이동형 노상로의 조업방법.
- 제 1 항에 있어서, 이동형 노상이 회전형 노상인 것을 특징으로 하는 이동형 노상로의 조업방법.
- 제 1 항 또는 제 2 항에 있어서, 석탄챠를 회수하고, 분광석과 석탄챠의 혼합층의 석탄챠로서 반복해서 사용하는 것을 특징으로 하는 이동형 노상로의 조업방법.
- 제 1 항 또는 제 2 항에 있어서, 분광석과 석탄챠의 혼합층과 분석탄과 분석탄챠의 혼합층을 각각 별도의 층으로 적층하고, 분광석의 환원을 실시함과 동시에 분석탄과 석탄챠의 혼합층의 분석탄을 열분해하여 석탄챠로 하는 것을 특징으로 하는 이동형 노상로의 조업방법.
- 제 4 항에 있어서, 석탄챠를 회수하고, 분광석과 석탄챠의 혼합층의 석탄챠 및/또는 분석탄과 석탄챠의 혼합층의 석탄챠로서 반복해서 사용하는 것을 특징으로 하는 이동형 노상로의 조업방법.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP26540997A JP3482838B2 (ja) | 1997-09-30 | 1997-09-30 | 移動型炉床炉の操業方法 |
JP97/265409 | 1997-09-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20000069180A true KR20000069180A (ko) | 2000-11-25 |
KR100402451B1 KR100402451B1 (ko) | 2003-10-22 |
Family
ID=17416773
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-1999-7004741A KR100402451B1 (ko) | 1997-09-30 | 1998-03-27 | 이동형 노상로의 조업방법 |
Country Status (10)
Country | Link |
---|---|
US (1) | US6264721B1 (ko) |
EP (1) | EP0976840B1 (ko) |
JP (1) | JP3482838B2 (ko) |
KR (1) | KR100402451B1 (ko) |
BR (1) | BR9806257A (ko) |
DE (1) | DE69824570T2 (ko) |
ID (1) | ID21848A (ko) |
MY (1) | MY125282A (ko) |
WO (1) | WO1999016912A1 (ko) |
ZA (1) | ZA982704B (ko) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW502066B (en) | 1998-08-27 | 2002-09-11 | Kobe Steel Ltd | Method for operating moving hearth reducing furnace |
JP3404309B2 (ja) | 1999-01-18 | 2003-05-06 | 株式会社神戸製鋼所 | 還元鉄塊成物の製造方法および製造装置 |
JP3009661B1 (ja) | 1999-01-20 | 2000-02-14 | 株式会社神戸製鋼所 | 還元鉄ペレットの製造方法 |
AU780672B2 (en) * | 2000-10-31 | 2005-04-07 | Jfe Steel Corporation | A method for discharging reduced product from a movable-hearth furnace and a discharging device |
US20020053307A1 (en) * | 2000-10-31 | 2002-05-09 | Natsuo Ishiwata | Method for discharging reduced product from a moveable-hearth furnace and a discharging device |
JP4266284B2 (ja) | 2001-07-12 | 2009-05-20 | 株式会社神戸製鋼所 | 金属鉄の製法 |
EP1405895A1 (en) * | 2002-10-04 | 2004-04-07 | Danieli Corus Technical Services BV | Apparatus and process for the treatment of a material under pyrolytical conditions, and use thereof |
JP5388450B2 (ja) * | 2004-12-07 | 2014-01-15 | ニュー−アイロン テクノロジー リミテッド ライアビリティー カンパニー | 金属鉄ナゲットを生成するための方法およびシステム |
CA2661419A1 (en) | 2008-04-03 | 2009-10-03 | Nu-Iron Technology, Llc | System and method for producing metallic iron |
JP5042203B2 (ja) * | 2008-12-15 | 2012-10-03 | 株式会社神戸製鋼所 | 粒状金属鉄の製法 |
US20110018179A1 (en) | 2009-06-29 | 2011-01-27 | Bairong Li | Metal reduction processes, metallurgical processes and products and apparatus |
CN113956896A (zh) * | 2020-07-20 | 2022-01-21 | 山西潞安煤基清洁能源有限责任公司 | 一种提高化工煤混配合格率的方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1452627A (en) * | 1921-01-21 | 1923-04-24 | Edwin B Thornhill | Process for the production of sponge iron and other metallic products |
LU60981A1 (ko) * | 1970-05-26 | 1971-06-24 | ||
US3770417A (en) * | 1971-02-23 | 1973-11-06 | Salem Corp | Simultaneous production of metallized ores and coke |
US4701214A (en) * | 1986-04-30 | 1987-10-20 | Midrex International B.V. Rotterdam | Method of producing iron using rotary hearth and apparatus |
US4676741A (en) * | 1986-10-22 | 1987-06-30 | The International Metals Reclamation Company, Inc. | Radiantly heated furnace |
BE1008397A6 (fr) * | 1994-07-13 | 1996-05-07 | Centre Rech Metallurgique | Procede pour fabriquer une eponge de fer a basse teneur en soufre. |
US5567224A (en) * | 1995-06-06 | 1996-10-22 | Armco Inc. | Method of reducing metal oxide in a rotary hearth furnace heated by an oxidizing flame |
-
1997
- 1997-09-30 JP JP26540997A patent/JP3482838B2/ja not_active Expired - Fee Related
-
1998
- 1998-03-27 KR KR10-1999-7004741A patent/KR100402451B1/ko not_active IP Right Cessation
- 1998-03-27 DE DE1998624570 patent/DE69824570T2/de not_active Expired - Lifetime
- 1998-03-27 US US09/308,870 patent/US6264721B1/en not_active Expired - Fee Related
- 1998-03-27 WO PCT/JP1998/001398 patent/WO1999016912A1/ja active IP Right Grant
- 1998-03-27 ID ID990511A patent/ID21848A/id unknown
- 1998-03-27 BR BR9806257A patent/BR9806257A/pt not_active Application Discontinuation
- 1998-03-27 EP EP98911060A patent/EP0976840B1/en not_active Expired - Lifetime
- 1998-03-31 ZA ZA982704A patent/ZA982704B/xx unknown
- 1998-03-31 MY MYPI98001417A patent/MY125282A/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE69824570T2 (de) | 2004-11-04 |
ID21848A (id) | 1999-08-05 |
WO1999016912A1 (fr) | 1999-04-08 |
ZA982704B (en) | 1998-10-05 |
JPH11106814A (ja) | 1999-04-20 |
KR100402451B1 (ko) | 2003-10-22 |
EP0976840A4 (en) | 2003-01-15 |
JP3482838B2 (ja) | 2004-01-06 |
US6264721B1 (en) | 2001-07-24 |
MY125282A (en) | 2006-07-31 |
BR9806257A (pt) | 2000-01-25 |
EP0976840A1 (en) | 2000-02-02 |
EP0976840B1 (en) | 2004-06-16 |
DE69824570D1 (de) | 2004-07-22 |
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