ES2048752T3 - Procedimiento para la reduccion en ba\o de fusion de minerales oxidicos. - Google Patents

Procedimiento para la reduccion en ba\o de fusion de minerales oxidicos.

Info

Publication number
ES2048752T3
ES2048752T3 ES88120482T ES88120482T ES2048752T3 ES 2048752 T3 ES2048752 T3 ES 2048752T3 ES 88120482 T ES88120482 T ES 88120482T ES 88120482 T ES88120482 T ES 88120482T ES 2048752 T3 ES2048752 T3 ES 2048752T3
Authority
ES
Spain
Prior art keywords
reduction
mineral
fusion
procedure
reduction furnace
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
Application number
ES88120482T
Other languages
English (en)
Inventor
Takuya Maeda
Keikichi Murakami
Tsutomu Yamada
Mitsuharu Kishimoto
Kenichi Yajima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kawasaki Heavy Industries Ltd
Kawasaki Motors Ltd
Original Assignee
Kawasaki Heavy Industries Ltd
Kawasaki Jukogyo KK
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26566196&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2048752(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from JP62310117A external-priority patent/JPH01149911A/ja
Priority claimed from JP62310143A external-priority patent/JP2623269B2/ja
Application filed by Kawasaki Heavy Industries Ltd, Kawasaki Jukogyo KK filed Critical Kawasaki Heavy Industries Ltd
Application granted granted Critical
Publication of ES2048752T3 publication Critical patent/ES2048752T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
    • C21B13/143—Injection of partially reduced ore into a molten bath
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0073—Selection or treatment of the reducing gases
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft furnaces
    • C21B13/029—Introducing coolant gas in the shaft furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/30—Arrangements for extraction or collection of waste gases; Hoods therefor
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/20—Increasing the gas reduction potential of recycled exhaust gases
    • C21B2100/22—Increasing the gas reduction potential of recycled exhaust gases by reforming
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/20—Increasing the gas reduction potential of recycled exhaust gases
    • C21B2100/26—Increasing the gas reduction potential of recycled exhaust gases by adding additional fuel in recirculation pipes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/20—Increasing the gas reduction potential of recycled exhaust gases
    • C21B2100/28—Increasing the gas reduction potential of recycled exhaust gases by separation
    • C21B2100/282—Increasing the gas reduction potential of recycled exhaust gases by separation of carbon dioxide
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/40—Gas purification of exhaust gases to be recirculated or used in other metallurgical processes
    • C21B2100/44—Removing particles, e.g. by scrubbing, dedusting
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
    • C21B2100/64—Controlling the physical properties of the gas, e.g. pressure or temperature
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacture Of Iron (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

SE SOMETE UN MINERAL DE OXIDO METALICO A UNA REDUCCION POR FUSION PARA OBTENER EL METAL FUNDIDO POR UN METODO QUE COMPRENDE LA PRERREDUCCION DE DICHO MINERAL EN ESTADO SOLIDO EN UN HORNO DE PRERREDUCCION (1) DESPUES DE ESTO SE FUNDE DICHO MINERAL REALIZANDO LA REDUCCION FINAL EN UN HORNO DE REDUCCION (2), Y AL MISMO TIEMPO INTRODUCIENDO GAS GENERADO EN DICHO HORNO DE REDUCCION POR FUSION (2) Y QUE TIENE CAPACIDAD REDUCTORA EN EL CITADO HORNO DE PRERREDUCCION (1). EL METODO ESTA CARACTERIZADO POR LA VELOCIDAD DE PRERREDUCCION DEL MINERAL EN EL HORNO DE PRERREDUCCION DEL MINERAL EN EL HORNO DE PRERREDUCCION (1) QUE ESTAQ CONTROLADA A UN VALOR CON UN MAXIMO DEL ORDEN DEL 33% PARA ELEVAR LA VELOCIDAD DE UTILIZACION A UN LIMITE MAXIMO.
ES88120482T 1987-12-07 1988-12-07 Procedimiento para la reduccion en ba\o de fusion de minerales oxidicos. Expired - Lifetime ES2048752T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP62310117A JPH01149911A (ja) 1987-12-07 1987-12-07 溶融還元法
JP62310143A JP2623269B2 (ja) 1987-12-08 1987-12-08 溶融還元における予備還元用ガス性状の調整方法

Publications (1)

Publication Number Publication Date
ES2048752T3 true ES2048752T3 (es) 1994-04-01

Family

ID=26566196

Family Applications (1)

Application Number Title Priority Date Filing Date
ES88120482T Expired - Lifetime ES2048752T3 (es) 1987-12-07 1988-12-07 Procedimiento para la reduccion en ba\o de fusion de minerales oxidicos.

Country Status (8)

Country Link
EP (1) EP0319966B1 (es)
KR (1) KR910008141B1 (es)
CN (1) CN1015549B (es)
BR (1) BR8806437A (es)
CA (1) CA1338099C (es)
DE (1) DE3885862T2 (es)
ES (1) ES2048752T3 (es)
MX (1) MX170052B (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4037977A1 (de) * 1990-11-29 1992-06-11 Voest Alpine Ind Anlagen Verfahren zur herstellung von roheisen bzw. eisenschwamm
RU2106413C1 (ru) * 1991-09-20 1998-03-10 Аусмелт Лимитед Способ производства чугуна
JPH09310126A (ja) * 1996-05-16 1997-12-02 Daido Steel Co Ltd 金属酸化物から金属を得る製造方法
CN1073630C (zh) * 1999-10-27 2001-10-24 冶金工业部钢铁研究总院 煤氧熔融还原炼铁方法及装置
KR101050800B1 (ko) * 2008-12-30 2011-07-20 주식회사 포스코 용철 제조 방법 및 장치

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE435732B (sv) * 1983-03-02 1984-10-15 Ips Interproject Service Ab Forfarande for framstellning av rajern ur jernslig
DE3418085A1 (de) * 1984-05-16 1985-11-28 Klöckner CRA Technologie GmbH, 4100 Duisburg Verfahren zur eisenherstellung

Also Published As

Publication number Publication date
KR910008141B1 (ko) 1991-10-10
DE3885862T2 (de) 1994-06-16
EP0319966A2 (en) 1989-06-14
AU600398B2 (en) 1990-08-09
BR8806437A (pt) 1989-08-22
AU2657988A (en) 1989-06-08
CN1015549B (zh) 1992-02-19
DE3885862D1 (de) 1994-01-05
KR890010214A (ko) 1989-08-07
EP0319966A3 (en) 1991-02-27
CA1338099C (en) 1996-03-05
MX170052B (es) 1993-08-05
EP0319966B1 (en) 1993-11-24
CN1034394A (zh) 1989-08-02

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