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WO2011061261A3 - Method and device for reducing the metallurgical power demand of closed electric smelting and/or reduction furnaces - Google Patents

Method and device for reducing the metallurgical power demand of closed electric smelting and/or reduction furnaces Download PDF

Info

Publication number
WO2011061261A3
WO2011061261A3 PCT/EP2010/067768 EP2010067768W WO2011061261A3 WO 2011061261 A3 WO2011061261 A3 WO 2011061261A3 EP 2010067768 W EP2010067768 W EP 2010067768W WO 2011061261 A3 WO2011061261 A3 WO 2011061261A3
Authority
WO
WIPO (PCT)
Prior art keywords
gas
reducing
closed electric
electric smelting
power demand
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.)
Ceased
Application number
PCT/EP2010/067768
Other languages
German (de)
French (fr)
Other versions
WO2011061261A2 (en
Inventor
Roland König
Rolf Degel
Jürgen Kunze
Hartmut Schmieden
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.)
SMS Siemag AG
Original Assignee
SMS Siemag AG
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 SMS Siemag AG filed Critical SMS Siemag AG
Priority to EP10796304A priority Critical patent/EP2502015A2/en
Publication of WO2011061261A2 publication Critical patent/WO2011061261A2/en
Publication of WO2011061261A3 publication Critical patent/WO2011061261A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F27D17/10—Arrangements for using waste heat
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/56—Manufacture of steel by other methods
    • C21C5/562—Manufacture of steel by other methods starting from scrap
    • C21C5/565—Preheating of scrap
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
    • F27B3/10—Details, accessories or equipment, e.g. dust-collectors, specially adapted for hearth-type furnaces
    • F27B3/26—Arrangements of heat-exchange apparatus
    • 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
    • F27D13/00—Apparatus for preheating charges; Arrangements for preheating charges
    • F27D13/002—Preheating scrap
    • 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
    • F27D17/304—Arrangements for extraction or collection of waste gases; Hoods therefor specially adapted for electric arc furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/466—Charging device for converters
    • C21C2005/4666—Charging device for converters for charging with organic contaminated scrap
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C2100/00—Exhaust gas
    • C21C2100/06—Energy from waste gas used in other processes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/36—Processes yielding slags of special composition
    • 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
    • F27D13/00—Apparatus for preheating charges; Arrangements for preheating charges
    • F27D2013/007—Apparatus for preheating charges; Arrangements for preheating charges using a rotary furnace
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Manufacture Of Iron (AREA)

Abstract

In order to utilize the CO-rich process gas that develops in the closed electric smelting and/or reduction furnace (1) for the generation of iron alloys, metals, and silicon, for recycling processes, and chemical processes, said gas is burned in a gas engine (3) for driving a generator (4) for generating electric energy. In order to further increase the efficiency of such systems comprising gas engines, according to the invention the hot combustion gases of the gas engine (3) are utilized to deliberately raise the inlet temperature of the charge material to be added to the smelting and/or reduction furnace (1).
PCT/EP2010/067768 2009-11-19 2010-11-18 Method and device for reducing the metallurgical power demand of closed electric smelting and/or reduction furnaces Ceased WO2011061261A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10796304A EP2502015A2 (en) 2009-11-19 2010-11-18 Method and device for reducing the metallurgical power demand of closed electric smelting and/or reduction furnaces

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009053920A DE102009053920A1 (en) 2009-11-19 2009-11-19 Method and device for reducing the metallurgical energy requirement of closed electric melting and / or reduction furnaces
DE102009053920.4 2009-11-19

Publications (2)

Publication Number Publication Date
WO2011061261A2 WO2011061261A2 (en) 2011-05-26
WO2011061261A3 true WO2011061261A3 (en) 2011-07-14

Family

ID=43901998

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/067768 Ceased WO2011061261A2 (en) 2009-11-19 2010-11-18 Method and device for reducing the metallurgical power demand of closed electric smelting and/or reduction furnaces

Country Status (3)

Country Link
EP (1) EP2502015A2 (en)
DE (1) DE102009053920A1 (en)
WO (1) WO2011061261A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016209739A1 (en) * 2015-06-02 2016-12-08 Sms Group Gmbh Process for the production of FeCR in an AC reduction furnace in the slag process with optional thyristor-controlled arc
CN114754580A (en) * 2022-04-29 2022-07-15 沈阳益富冶炼技术装备有限公司 A carbon reduction reaction electric furnace system with its own auxiliary power supply

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3027573A1 (en) * 1979-07-25 1981-02-12 Gabriele Gavioli Tunnel kiln flue gases heat recovery - with heat exchangers for air and IC engine circuit
JP2005220007A (en) * 2004-01-09 2005-08-18 Hitachi Ltd Reforming furnace system
EP1995222A1 (en) * 2007-05-23 2008-11-26 Johns Manville Method and system for preheating glass batch or ingredient(s)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3334221A1 (en) 1983-08-25 1985-03-14 Mannesmann AG, 4000 Düsseldorf METHOD FOR PRODUCING LIQUID, CARBONATED IRON FROM IRON SPONGE

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3027573A1 (en) * 1979-07-25 1981-02-12 Gabriele Gavioli Tunnel kiln flue gases heat recovery - with heat exchangers for air and IC engine circuit
JP2005220007A (en) * 2004-01-09 2005-08-18 Hitachi Ltd Reforming furnace system
EP1995222A1 (en) * 2007-05-23 2008-11-26 Johns Manville Method and system for preheating glass batch or ingredient(s)

Also Published As

Publication number Publication date
EP2502015A2 (en) 2012-09-26
DE102009053920A1 (en) 2011-05-26
WO2011061261A2 (en) 2011-05-26

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Legal Events

Date Code Title Description
DPE2 Request for preliminary examination filed before expiration of 19th month from priority date (pct application filed from 20040101)
WWE Wipo information: entry into national phase

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