DE69809883D1 - Verfahren und Vorrichtung zur schnellen Reduktion von Eisenerzen in einem Drehherdofen - Google Patents
Verfahren und Vorrichtung zur schnellen Reduktion von Eisenerzen in einem DrehherdofenInfo
- Publication number
- DE69809883D1 DE69809883D1 DE69809883T DE69809883T DE69809883D1 DE 69809883 D1 DE69809883 D1 DE 69809883D1 DE 69809883 T DE69809883 T DE 69809883T DE 69809883 T DE69809883 T DE 69809883T DE 69809883 D1 DE69809883 D1 DE 69809883D1
- Authority
- DE
- Germany
- Prior art keywords
- compacts
- hearth furnace
- rotary hearth
- iron ores
- rapid reduction
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
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
- C21B13/0046—Making spongy iron or liquid steel, by direct processes making metallised agglomerates or iron oxide
-
- 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
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/357,940 US5730775A (en) | 1994-12-16 | 1994-12-16 | Method for rapid reduction of iron oxide in a rotary hearth furnace |
US08/832,414 US5885521A (en) | 1994-12-16 | 1997-04-02 | Apparatus for rapid reduction of iron oxide in a rotary hearth furnace |
PCT/US1998/005006 WO1999046410A1 (en) | 1994-12-16 | 1998-03-13 | Method and apparatus for rapid reduction of iron oxide in a rotary hearth furnace |
CA002232275A CA2232275C (en) | 1994-12-16 | 1998-03-17 | Method and apparatus for rapid reduction of iron oxide in a rotary hearth furnace |
EP98104960A EP0947586B1 (de) | 1994-12-16 | 1998-03-18 | Verfahren und Vorrichtung zur schnellen Reduktion von Eisenerzen in einem Drehherdofen |
TW087104297A TW442573B (en) | 1994-12-16 | 1998-03-23 | Method for producing direct reduced iron from dry compacts, and apparatus for producing metal from direct reduced iron from dry compacts in a rotary hearth furnace |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69809883D1 true DE69809883D1 (de) | 2003-01-16 |
DE69809883T2 DE69809883T2 (de) | 2003-10-09 |
Family
ID=33437265
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69809883T Expired - Lifetime DE69809883T2 (de) | 1994-12-16 | 1998-03-18 | Verfahren und Vorrichtung zur schnellen Reduktion von Eisenerzen in einem Drehherdofen |
Country Status (9)
Country | Link |
---|---|
US (1) | US5730775A (de) |
EP (1) | EP0947586B1 (de) |
AT (1) | ATE229084T1 (de) |
AU (1) | AU6760598A (de) |
CA (1) | CA2232275C (de) |
DE (1) | DE69809883T2 (de) |
ES (1) | ES2189022T3 (de) |
TW (1) | TW442573B (de) |
WO (1) | WO1999046410A1 (de) |
Families Citing this family (60)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AUPN461695A0 (en) * | 1995-08-07 | 1995-08-31 | Technological Resources Pty Limited | A process for reducing iron oxides |
CN1080315C (zh) | 1996-03-15 | 2002-03-06 | 株式会社神户制钢所 | 生产金属铁的方法及设备 |
US6506231B2 (en) | 1996-03-15 | 2003-01-14 | Kabushiki Kaisha Kobe Seiko Sho | Method and apparatus for making metallic iron |
JP3296974B2 (ja) * | 1996-08-15 | 2002-07-02 | 株式会社神戸製鋼所 | 直接還元法及び回転床炉 |
WO1998021372A1 (fr) * | 1996-11-11 | 1998-05-22 | Sumitomo Metal Industries, Ltd. | Procede et dispositif de fabrication de fer reduit |
US5951740A (en) * | 1997-06-16 | 1999-09-14 | Praxair Technology, Inc. | Production of direct reduced iron with reduced fuel consumption and emission of carbon monoxide |
EP1770175A1 (de) * | 1997-09-30 | 2007-04-04 | JFE Steel Corporation | Drehherdofen zur Reduktion der Oxide |
JP3845978B2 (ja) * | 1997-09-30 | 2006-11-15 | Jfeスチール株式会社 | 回転炉床炉の操業方法および回転炉床炉 |
ID26484A (id) * | 1997-12-26 | 2001-01-11 | Nippon Kokan Kk | Metode pemurnian besi lelehan dan metode reduksi pelelehan untuk memproduksi besi lelehan |
JP3081581B2 (ja) * | 1998-03-23 | 2000-08-28 | 株式会社神戸製鋼所 | 高金属化率還元鉄塊成物の製造方法 |
EP0952230A1 (de) * | 1998-03-24 | 1999-10-27 | KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. | Verfahren zur Herstellung von reduzierten Eisenagglomeraten |
US6120577A (en) * | 1998-03-25 | 2000-09-19 | Ltv Steel Company, Inc. | Treatment of steel mill waste metal oxides |
JP2997459B1 (ja) * | 1998-11-04 | 2000-01-11 | 株式会社神戸製鋼所 | 還元鉄塊成物の製造方法 |
TW502066B (en) | 1998-08-27 | 2002-09-11 | Kobe Steel Ltd | Method for operating moving hearth reducing furnace |
TW461920B (en) | 1998-09-25 | 2001-11-01 | Mitsubishi Heavy Ind Ltd | Method of producing reduced iron and production facilities therefor |
US6685761B1 (en) | 1998-10-30 | 2004-02-03 | Midrex International B.V. Rotterdam, Zurich Branch | Method for producing beneficiated titanium oxides |
AU761344B2 (en) * | 1998-10-30 | 2003-06-05 | Midrex Technologies Inc. | Method of producing molten iron in duplex furnaces |
US6413295B2 (en) | 1998-11-12 | 2002-07-02 | Midrex International B.V. Rotterdam, Zurich Branch | Iron production method of operation in a rotary hearth furnace and improved furnace apparatus |
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 |
US6390810B1 (en) | 1999-03-15 | 2002-05-21 | Maumee Research & Engineering, Inc. | Method and apparatus for reducing a feed material in a rotary hearth furnace |
BR9917437A (pt) * | 1999-07-28 | 2002-06-18 | Sidmar Nv | Processo e forno de redução de óxidos metálicos |
CN1276097C (zh) | 1999-08-30 | 2006-09-20 | 株式会社神户制钢所 | 粒状还原铁原料的供给方法及其装置 |
JP4227710B2 (ja) | 1999-09-17 | 2009-02-18 | 三菱重工業株式会社 | 還元鉄製造装置 |
US6368104B1 (en) * | 1999-09-24 | 2002-04-09 | The Boc Group, Inc. | Rotary hearth furnace |
RU2228365C2 (ru) | 2000-03-30 | 2004-05-10 | Мидрекс Интернэшнл Б.В. Цюрих Бранч | Способ получения гранулированного металлического железа, способ получения жидкой стали, способ получения металлического железа, устройство для загрузки вспомогательного исходного материала и устройство для загрузки исходного материала |
JP4540172B2 (ja) * | 2000-03-30 | 2010-09-08 | 株式会社神戸製鋼所 | 粒状金属鉄の製法 |
TW562860B (en) | 2000-04-10 | 2003-11-21 | Kobe Steel Ltd | Method for producing reduced iron |
US6802886B2 (en) * | 2000-06-05 | 2004-10-12 | Midrex Technologies, Inc. | Method of producing a metallized briquette |
JP2002020813A (ja) * | 2000-07-05 | 2002-01-23 | Mitsubishi Heavy Ind Ltd | 還元鉄製造装置 |
EP1338660B1 (de) * | 2000-10-30 | 2009-05-13 | Nippon Steel Corporation | METALLOXID ENTHALTENDES GRÜNPELLET FÜR REDUKTIONSOFEN und VERFAHREN ZU SEINER HERSTELLUNG, VERFAHREN ZU SEINER REDUKTION |
US7037356B2 (en) * | 2000-11-10 | 2006-05-02 | Nippon Steel Corporation | Method for operating rotary hearth type reducing furnace and rotary hearth type reducing furnace facilities |
US6749664B1 (en) | 2001-01-26 | 2004-06-15 | Midrex International, B.V., Rotterdam, Zurich Branch | Furnace hearth for improved molten iron production and method of operation |
JP2002363626A (ja) * | 2001-06-11 | 2002-12-18 | Kobe Steel Ltd | 移動炉床炉の操業方法 |
US6993855B2 (en) * | 2001-09-27 | 2006-02-07 | Nippon Steel Corporation | Method for drying compact containing metal oxide, method for reducing metal oxide, and rotary-hearth-type metal reducing furnace |
US8197561B2 (en) * | 2001-10-10 | 2012-06-12 | River Basin Energy, Inc. | Process for drying coal |
AU2003230680A1 (en) * | 2002-03-19 | 2003-10-08 | Superior Graphite Co. | Process and apparatus for the direct reduction of iron oxides in an electrothermal fluidized bed and resulant product |
JP4307849B2 (ja) * | 2003-01-07 | 2009-08-05 | 株式会社神戸製鋼所 | クロム含有原料の還元方法 |
JP4490640B2 (ja) * | 2003-02-26 | 2010-06-30 | 株式会社神戸製鋼所 | 還元金属の製造方法 |
AU2003903344A0 (en) * | 2003-06-30 | 2003-07-17 | Furnace Engineering Pty Ltd | High temperature process |
AU2004252178B2 (en) * | 2003-06-30 | 2009-10-08 | Furnace Engineering Pty Ltd | High temperature process |
CA2590259C (en) * | 2004-12-07 | 2016-02-16 | Nu-Iron Technology, Llc | Method and system for producing metallic iron nuggets |
US8470068B2 (en) * | 2004-12-07 | 2013-06-25 | Nu-Iron Technology, Llc | Method and system for producing metallic iron nuggets |
CA2616394A1 (en) * | 2005-08-30 | 2007-03-08 | E.I. Du Pont De Nemours And Company | Ore reduction process and titanium oxide and iron metallization product |
US8021460B2 (en) * | 2006-07-26 | 2011-09-20 | Nu-Iron Technology, Llc | System and method for producing metallic iron nodules |
JP4976822B2 (ja) * | 2006-11-14 | 2012-07-18 | 株式会社神戸製鋼所 | 粒状金属鉄の製造方法およびその装置 |
JP5059379B2 (ja) * | 2006-11-16 | 2012-10-24 | 株式会社神戸製鋼所 | 高炉装入原料用ホットブリケットアイアンおよびその製造方法 |
US7938882B2 (en) * | 2007-04-02 | 2011-05-10 | Midrex Technologies, Inc. | Method and system for the supply of hot direct reduced iron for multiple uses |
JP4317579B2 (ja) | 2007-09-05 | 2009-08-19 | 新日本製鐵株式会社 | 還元鉄成形体の製造方法、及び銑鉄の製造方法 |
US8372179B2 (en) * | 2007-10-15 | 2013-02-12 | E I Du Pont De Nemours And Company | Ore reduction process using carbon based materials having a low sulfur content and titanium oxide and iron metallization product therefrom |
EP2325341A1 (de) | 2008-01-30 | 2011-05-25 | Nu-Iron Technology, Inc | Verfahren und System zur Herstellung metallischer Ionenklumpen |
CA2661419A1 (en) | 2008-04-03 | 2009-10-03 | Nu-Iron Technology, Llc | System and method for producing metallic iron |
CZ200975A3 (cs) | 2009-02-10 | 2010-08-04 | Raclavský@Milan | Technologie rafinace kovonosných odpadu s obsahem zinku v rotacní peci |
WO2011041431A1 (en) | 2009-09-29 | 2011-04-07 | Nu-Iron Technology, Llc | System and method for producing metallic iron |
US9057037B2 (en) | 2010-04-20 | 2015-06-16 | River Basin Energy, Inc. | Post torrefaction biomass pelletization |
US8956426B2 (en) * | 2010-04-20 | 2015-02-17 | River Basin Energy, Inc. | Method of drying biomass |
US8287621B2 (en) | 2010-12-22 | 2012-10-16 | Nu-Iron Technology, Llc | Use of bimodal carbon distribution in compacts for producing metallic iron nodules |
JP5677884B2 (ja) * | 2011-04-11 | 2015-02-25 | 新日鉄住金エンジニアリング株式会社 | 連続加熱処理炉の炉温設定方法及び炉温制御方法 |
JP5957348B2 (ja) * | 2012-09-21 | 2016-07-27 | Primetals Technologies Japan株式会社 | 部分還元鉄製造装置 |
US9534275B2 (en) | 2013-03-06 | 2017-01-03 | Midrex Technologies, Inc. | Methods and systems for reducing chromium containing raw material |
EP3986596B1 (de) | 2019-08-23 | 2023-07-12 | John W. SCHULTES | Verfahren und eine direkte reduzierungsanlage zur herstellung von direkt reduziertem eisen |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3443931A (en) * | 1965-09-10 | 1969-05-13 | Midland Ross Corp | Process for making metallized pellets from iron oxide containing material |
US3452972A (en) * | 1966-06-23 | 1969-07-01 | Donald Beggs | Furnace hearth |
US3836353A (en) * | 1968-10-18 | 1974-09-17 | C Holley | Pellet reclamation process |
US3988012A (en) * | 1972-02-16 | 1976-10-26 | Emile Joseph Jemal | Rotary hearth |
US4622905A (en) * | 1985-03-04 | 1986-11-18 | International Metals Reclamation Co., Inc. | Furnacing |
US4636127A (en) * | 1985-04-03 | 1987-01-13 | The International Metals Reclamation Co., Inc. | Conveying screw for furnace |
US4597564A (en) * | 1985-05-23 | 1986-07-01 | The International Metals Reclamation Company, Inc. | Rotary hearth |
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 |
US5186741A (en) * | 1991-04-12 | 1993-02-16 | Zia Patent Company | Direct reduction process in a rotary hearth furnace |
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 |
US5601631A (en) * | 1995-08-25 | 1997-02-11 | Maumee Research & Engineering Inc. | Process for treating metal oxide fines |
-
1994
- 1994-12-16 US US08/357,940 patent/US5730775A/en not_active Expired - Lifetime
-
1998
- 1998-03-13 WO PCT/US1998/005006 patent/WO1999046410A1/en active Application Filing
- 1998-03-13 AU AU67605/98A patent/AU6760598A/en not_active Abandoned
- 1998-03-17 CA CA002232275A patent/CA2232275C/en not_active Expired - Lifetime
- 1998-03-18 ES ES98104960T patent/ES2189022T3/es not_active Expired - Lifetime
- 1998-03-18 AT AT98104960T patent/ATE229084T1/de active
- 1998-03-18 EP EP98104960A patent/EP0947586B1/de not_active Expired - Lifetime
- 1998-03-18 DE DE69809883T patent/DE69809883T2/de not_active Expired - Lifetime
- 1998-03-23 TW TW087104297A patent/TW442573B/zh not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
US5730775A (en) | 1998-03-24 |
EP0947586B1 (de) | 2002-12-04 |
DE69809883T2 (de) | 2003-10-09 |
CA2232275C (en) | 2001-10-23 |
WO1999046410A1 (en) | 1999-09-16 |
TW442573B (en) | 2001-06-23 |
ATE229084T1 (de) | 2002-12-15 |
CA2232275A1 (en) | 1999-09-17 |
AU6760598A (en) | 1999-09-27 |
ES2189022T3 (es) | 2003-07-01 |
EP0947586A1 (de) | 1999-10-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8328 | Change in the person/name/address of the agent |
Representative=s name: PATENTANWAELTE VON KREISLER, SELTING, WERNER ET COL |