RU2004105153A - METHOD FOR ACCELERATING THE SEPARATION OF GRANULATED METAL IRON AND SLAG - Google Patents

METHOD FOR ACCELERATING THE SEPARATION OF GRANULATED METAL IRON AND SLAG Download PDF

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Publication number
RU2004105153A
RU2004105153A RU2004105153/02A RU2004105153A RU2004105153A RU 2004105153 A RU2004105153 A RU 2004105153A RU 2004105153/02 A RU2004105153/02 A RU 2004105153/02A RU 2004105153 A RU2004105153 A RU 2004105153A RU 2004105153 A RU2004105153 A RU 2004105153A
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RU
Russia
Prior art keywords
metallic iron
slag
separation
rapid cooling
granular
Prior art date
Application number
RU2004105153/02A
Other languages
Russian (ru)
Other versions
RU2312899C2 (en
Inventor
Осаму ЦУГЕ (JP)
Осаму ЦУГЕ
Сохеи ЁСИДА (JP)
Сохеи ЁСИДА
Original Assignee
Кабусики Кайся Кобе Сейко Сё (Jp)
Кабусики Кайся Кобе Сейко Сё
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
Application filed by Кабусики Кайся Кобе Сейко Сё (Jp), Кабусики Кайся Кобе Сейко Сё filed Critical Кабусики Кайся Кобе Сейко Сё (Jp)
Publication of RU2004105153A publication Critical patent/RU2004105153A/en
Application granted granted Critical
Publication of RU2312899C2 publication Critical patent/RU2312899C2/en

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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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B3/00—General features in the manufacture of pig-iron
    • C21B3/04—Recovery of by-products, e.g. slag
    • C21B3/06—Treatment of liquid slag
    • C21B3/08—Cooling slag
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
    • 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
    • C21B13/0086—Conditioning, transformation of reduced iron ores
    • 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
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/02—Physical or chemical treatment of slags
    • C21B2400/022—Methods of cooling or quenching molten slag
    • C21B2400/024—Methods of cooling or quenching molten slag with the direct use of steam or liquid coolants, e.g. water
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/02—Physical or chemical treatment of slags
    • C21B2400/022—Methods of cooling or quenching molten slag
    • C21B2400/026—Methods of cooling or quenching molten slag using air, inert gases or removable conductive bodies
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/05—Apparatus features
    • C21B2400/06—Conveyors on which slag is cooled
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/05—Apparatus features
    • C21B2400/062—Jet nozzles or pressurised fluids for cooling, fragmenting or atomising slag
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/05—Apparatus features
    • C21B2400/066—Receptacle features where the slag is treated
    • C21B2400/068—Receptacle features where the slag is treated with a sealed or controlled environment
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/05—Apparatus features
    • C21B2400/066—Receptacle features where the slag is treated
    • C21B2400/072—Tanks to collect the slag, e.g. water tank

Landscapes

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

Claims (5)

1. Способ ускорения разделения гранулированного металлического железа и шлака, применяемый при получении гранулированного металлического железа путем восстановительной плавки кусковой шихты, включающей содержащий оксид железа материал и углеродсодержащий восстанавливающий агент, в котором неоднородную твердую смесь гранулированного металлического железа, получаемого в результате восстановительной плавки, и шлака, получаемого в качестве побочного продукта, подвергают быстрому охлаждению с целью ускорения разделения гранулированного металлического железа и побочного шлака.1. A method of accelerating the separation of granular metallic iron and slag, used in the preparation of granular metallic iron by reducing smelting of a bulk charge, comprising an iron oxide material and a carbon-containing reducing agent, in which an inhomogeneous solid mixture of granular metallic iron obtained from reducing melting and slag obtained as a by-product is subjected to rapid cooling in order to accelerate the separation of granular th metallic iron and slag byproduct. 2. Способ по п.1, в котором быстрое охлаждение осуществляют с применением хладагента.2. The method according to claim 1, in which rapid cooling is carried out using refrigerant. 3. Способ по п.1 или 2, в котором быстрое охлаждение осуществляют со скоростью не менее 250°С/мин по меньшей мере в части интервала от температуры затвердения гранулированного металлического железа до 150°С.3. The method according to claim 1 or 2, in which rapid cooling is carried out at a speed of at least 250 ° C / min at least in part of the interval from the solidification temperature of the granular metallic iron to 150 ° C. 4. Способ по п.3, в котором быстрое охлаждение осуществляют со скоростью охлаждения не менее 350°С/мин.4. The method according to claim 3, in which rapid cooling is carried out with a cooling rate of at least 350 ° C / min. 5. Способ по п.1, при котором в качестве хладагента применяют воду, и быстрое охлаждение металлического железа прекращают только при достижении температуры 150°С, а гранулированное металлическое железо подвергают сушке.5. The method according to claim 1, in which water is used as a refrigerant, and the rapid cooling of metallic iron is stopped only when the temperature reaches 150 ° C, and the granular metallic iron is dried.
RU2004105153/02A 2001-07-24 2002-06-17 Method of accelerating separation of granulated metallic iron and slag RU2312899C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001-223266 2001-07-24
JP2001223266A JP2003034813A (en) 2001-07-24 2001-07-24 Method for promoting separation between granular metal iron and slag

Publications (2)

Publication Number Publication Date
RU2004105153A true RU2004105153A (en) 2005-06-10
RU2312899C2 RU2312899C2 (en) 2007-12-20

Family

ID=19056630

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2004105153/02A RU2312899C2 (en) 2001-07-24 2002-06-17 Method of accelerating separation of granulated metallic iron and slag

Country Status (10)

Country Link
US (1) US20040168550A1 (en)
EP (1) EP1411135A4 (en)
JP (1) JP2003034813A (en)
KR (1) KR100660658B1 (en)
CN (1) CN1533443A (en)
AU (1) AU2002311297B2 (en)
CA (1) CA2448383A1 (en)
RU (1) RU2312899C2 (en)
TW (1) TW533239B (en)
WO (1) WO2003010342A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003027333A1 (en) * 2001-09-19 2003-04-03 Nippon Steel Corporation Reduced iron mass cooling method and cooling device
JP3679084B2 (en) * 2002-10-09 2005-08-03 株式会社神戸製鋼所 Method for producing molten metal raw material and method for producing molten metal
KR100768562B1 (en) * 2006-09-15 2007-10-19 주식회사 대진디엠피 Light emitting diode device and control method thereof
WO2011001282A2 (en) 2009-06-29 2011-01-06 Bairong Li Metal reduction processes, metallurgical processes and products and apparatus
JP2013227605A (en) * 2012-04-24 2013-11-07 Kobe Steel Ltd Metallic iron-containing sintered body
KR101404440B1 (en) * 2013-10-25 2014-06-19 주식회사 세라메탈 Apparatus for recycling waste raw materials
JP6273891B2 (en) * 2014-02-20 2018-02-07 新日鐵住金株式会社 Method and apparatus for reducing metal oxide by moving hearth furnace

Family Cites Families (19)

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DE69112385T2 (en) * 1990-02-13 1996-02-22 Illawarra Tech Corp Ltd JOINT TREATMENT OF WASTEWATER AND WASTE OF STEELWORKS.
JP3145834B2 (en) * 1993-03-08 2001-03-12 株式会社神戸製鋼所 Method for producing reduced iron briquettes
AT404361B (en) * 1995-01-23 1998-11-25 Voest Alpine Ind Anlagen METHOD AND DEVICE FOR COOLING HOT IRON SPONGE
JPH10158710A (en) * 1996-12-02 1998-06-16 Sumitomo Metal Mining Co Ltd Production of reduced iron pellet
US6383251B1 (en) * 1997-08-22 2002-05-07 William Lyon Sherwood Direct iron and steelmaking
JP4159634B2 (en) * 1997-10-23 2008-10-01 株式会社神戸製鋼所 Metallic iron manufacturing method and equipment
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
JP3009661B1 (en) * 1999-01-20 2000-02-14 株式会社神戸製鋼所 Method for producing reduced iron pellets
US6214087B1 (en) * 1999-03-19 2001-04-10 Midrex International B.V. Rotterdam, Zurich Branch Treatment of iron oxide agglomerates before introduction into furnace
DE60125669T2 (en) * 2000-03-30 2007-11-08 Kabushiki Kaisha Kobe Seiko Sho, Kobe Process for the production of metallic iron
JP3735004B2 (en) * 2000-03-31 2006-01-11 住友重機械工業株式会社 Method and apparatus for recovering melt discharged from rotary kiln
TW562860B (en) * 2000-04-10 2003-11-21 Kobe Steel Ltd Method for producing reduced iron
US20020053307A1 (en) * 2000-10-31 2002-05-09 Natsuo Ishiwata Method for discharging reduced product from a moveable-hearth furnace and a discharging device
US6648942B2 (en) * 2001-01-26 2003-11-18 Midrex International B.V. Rotterdam, Zurich Branch Method of direct iron-making / steel-making via gas or coal-based direct reduction and apparatus
JP4669189B2 (en) * 2001-06-18 2011-04-13 株式会社神戸製鋼所 Production of granular metallic iron
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JP4167113B2 (en) * 2003-04-17 2008-10-15 株式会社神戸製鋼所 Method and apparatus for producing reduced iron

Also Published As

Publication number Publication date
US20040168550A1 (en) 2004-09-02
EP1411135A4 (en) 2007-08-22
KR100660658B1 (en) 2006-12-21
CN1533443A (en) 2004-09-29
CA2448383A1 (en) 2003-02-06
TW533239B (en) 2003-05-21
EP1411135A1 (en) 2004-04-21
KR20040013155A (en) 2004-02-11
JP2003034813A (en) 2003-02-07
AU2002311297B2 (en) 2008-07-10
WO2003010342A1 (en) 2003-02-06
RU2312899C2 (en) 2007-12-20

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Effective date: 20090618