IN2013MU02988A - - Google Patents

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Publication number
IN2013MU02988A
IN2013MU02988A IN2988MU2013A IN2013MU02988A IN 2013MU02988 A IN2013MU02988 A IN 2013MU02988A IN 2988MU2013 A IN2988MU2013 A IN 2988MU2013A IN 2013MU02988 A IN2013MU02988 A IN 2013MU02988A
Authority
IN
India
Prior art keywords
raw
material pellets
exhaust gas
gas
heating
Prior art date
Application number
Inventor
Kamikawa Susumu
Mizuki Hideaki
Ito Hideki
Sato Keiichi
Pham Khanhson
Original Assignee
Mitsubishi Hitachi Metals
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 Mitsubishi Hitachi Metals filed Critical Mitsubishi Hitachi Metals
Publication of IN2013MU02988A publication Critical patent/IN2013MU02988A/en

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Classifications

    • 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
    • F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
    • 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
    • C21B13/0053—On a massing grate
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/16—Sintering; Agglomerating
    • C22B1/20—Sintering; Agglomerating in sintering machines with movable grates
    • 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
    • F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
    • 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
    • C21B2100/66—Heat exchange
    • 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

Abstract

A partially-reduced iron producing apparatus includes: an exhaust gas circulating device (50) which supplies an oxygen-containing gas to raw-material pellets to be heated by a heat of ignition raw-material pellets, the oxygen-containing gas made by circulating part of an exhaust gas discharged from the raw-material pellets by use of the heat of the ignition raw-material pellets heated in a heating furnace (20) and mixing the discharged exhaust gas with air; and a liquid-tar separating device (105) which is provided in the exhaust gas circulating device (50) and which separates a tar component in the exhaust gas from the exhaust gas as a liquid tar. A partially-reduced iron is produced by heating and reducing the whole of the raw-material pellets in a bed height direction thereof through a combustion region for the raw-material pellets and a heating region for the raw-material pellets, the combustion region formed on an upstream side in a travelling direction of an endless grate by supplying the gas having a high oxygen concentration; and the heating region formed downstream of the combustion region in the travelling direction of the endless grate by supplying the gas having a low oxygen concentration.
IN2988MU2013 2012-09-21 2013-09-13 IN2013MU02988A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012208658A JP5957348B2 (en) 2012-09-21 2012-09-21 Partially reduced iron production equipment

Publications (1)

Publication Number Publication Date
IN2013MU02988A true IN2013MU02988A (en) 2015-07-10

Family

ID=50306340

Family Applications (1)

Application Number Title Priority Date Filing Date
IN2988MU2013 IN2013MU02988A (en) 2012-09-21 2013-09-13

Country Status (4)

Country Link
US (1) US9163879B2 (en)
JP (1) JP5957348B2 (en)
CN (1) CN103667569B (en)
IN (1) IN2013MU02988A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5957348B2 (en) * 2012-09-21 2016-07-27 Ｐｒｉｍｅｔａｌｓ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｊａｐａｎ株式会社 Partially reduced iron production equipment
JP5947277B2 (en) * 2013-12-11 2016-07-06 Ｐｒｉｍｅｔａｌｓ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｊａｐａｎ株式会社 Partially reduced iron production equipment
EP3587975A4 (en) * 2017-02-27 2020-01-01 JP Steel Plantech Co. Sintering machine for sintered ore
US20190017745A1 (en) * 2017-07-11 2019-01-17 Air Products And Chemicals, Inc. Systems and Methods for Preheating Metal-Containing Pellets
CN107436090A (en) * 2017-08-23 2017-12-05 神雾科技集团股份有限公司 The control system and method for a kind of rotary hearth furnace
CN115125359B (en) * 2021-03-29 2024-01-09 宝山钢铁股份有限公司 Method and system for steelmaking by hot charging and hot feeding of metallized pellets of rotary hearth furnace

Family Cites Families (18)

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Publication number Priority date Publication date Assignee Title
SE459988B (en) 1987-12-23 1989-08-28 Abb Stal Ab COULD COOL BEDDING MATERIAL IN A PFBC POWER PLANT AND PFBC POWER PLANT WITH A REFRIGERATOR CONNECTED TO THE BEDDER
JPH089739B2 (en) 1989-08-23 1996-01-31 日本鋼管株式会社 Method for producing calcined agglomerated ore
JPH0426713A (en) * 1990-05-22 1992-01-29 Nisshin Steel Co Ltd Smelting reduction iron-making method
JPH07126660A (en) * 1993-10-29 1995-05-16 Nippon Steel Corp Coal tar collector and method therefor
US5730775A (en) * 1994-12-16 1998-03-24 Midrex International B.V. Rotterdam, Zurich Branch Method for rapid reduction of iron oxide in a rotary hearth furnace
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
JP2002539415A (en) * 1999-03-15 2002-11-19 モーミー、リサーチ、アンド、エンジニアリング、インコーパレイティド Method and apparatus for reducing feedstock in a rotary hearth furnace
JP3330918B2 (en) * 2000-02-04 2002-10-07 川崎重工業株式会社 Metal oxide reduction method and rotary hearth furnace used for the reduction method
JP2001342509A (en) * 2000-06-02 2001-12-14 Kobe Steel Ltd Method and apparatus for producing metallic iron
JP2002097508A (en) * 2000-09-19 2002-04-02 Mitsubishi Heavy Ind Ltd Method and apparatus for manufacturing reduced iron
JP4859268B2 (en) * 2000-09-19 2012-01-25 三菱重工業株式会社 Hot metal manufacturing method and hot metal manufacturing apparatus
JP4490640B2 (en) * 2003-02-26 2010-06-30 株式会社神戸製鋼所 Method for producing reduced metal
JP4241285B2 (en) 2003-09-22 2009-03-18 Ｊｆｅスチール株式会社 Method for producing semi-reduced sintered ore
CA2661419A1 (en) * 2008-04-03 2009-10-03 Nu-Iron Technology, Llc System and method for producing metallic iron
US20110143291A1 (en) * 2009-12-11 2011-06-16 Clements Bruce Flue gas recirculation method and system for combustion systems
JP5486395B2 (en) 2010-05-11 2014-05-07 株式会社神戸製鋼所 Method for producing reduced iron
JP5503472B2 (en) * 2010-09-07 2014-05-28 株式会社神戸製鋼所 Method for producing reduced iron
JP5957348B2 (en) * 2012-09-21 2016-07-27 Ｐｒｉｍｅｔａｌｓ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｊａｐａｎ株式会社 Partially reduced iron production equipment

Also Published As

Publication number Publication date
CN103667569A (en) 2014-03-26
JP2014062300A (en) 2014-04-10
JP5957348B2 (en) 2016-07-27
US9163879B2 (en) 2015-10-20
US20140084524A1 (en) 2014-03-27
CN103667569B (en) 2015-09-09

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