CA2534623A1 - Electric reducing furnace - Google Patents

Electric reducing furnace Download PDF

Info

Publication number
CA2534623A1
CA2534623A1 CA002534623A CA2534623A CA2534623A1 CA 2534623 A1 CA2534623 A1 CA 2534623A1 CA 002534623 A CA002534623 A CA 002534623A CA 2534623 A CA2534623 A CA 2534623A CA 2534623 A1 CA2534623 A1 CA 2534623A1
Authority
CA
Canada
Prior art keywords
reducing furnace
furnace
electric
electric reducing
reducing
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.)
Granted
Application number
CA002534623A
Other languages
French (fr)
Other versions
CA2534623C (en
Inventor
Juergen Kunze
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
Individual
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 Individual filed Critical Individual
Publication of CA2534623A1 publication Critical patent/CA2534623A1/en
Application granted granted Critical
Publication of CA2534623C publication Critical patent/CA2534623C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/18—Arrangements of devices for charging
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B11/00—Making pig-iron other than in blast furnaces
    • C21B11/10—Making pig-iron other than in blast furnaces in electric 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
    • C21B13/12—Making spongy iron or liquid steel, by direct processes in electric 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
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/527—Charging of the electric furnace
    • 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
    • C22B15/00—Obtaining copper
    • C22B15/0026—Pyrometallurgy
    • C22B15/0054—Slag, slime, speiss, or dross treating
    • 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
    • C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
    • 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
    • C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
    • C22B4/08—Apparatus
    • 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
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents
    • 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
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/04—Working-up slag
    • 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
    • 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
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/10—Charging directly from hoppers or shoots
    • 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
    • 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

The invention relates to an electric reducing furnace (1) for carrying out reduction processes, particularly for reducing slag in order to recover metallic constituents. The electric reducing furnace operates with electrical energy that is fed into the furnace interior (Oi) via at least one electrode.
The reducing furnace (1), while having an air-sealed design, comprises a charging opening (3) for charge stock, which is conveyed via a charging device (4), whereby the charging opening also simultaneously serves as a waste gas exhaust opening (3) for the resulting gas.

Claims
CA 2534623 2003-07-31 2004-06-21 Electric reducing furnace Expired - Fee Related CA2534623C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10335847.1 2003-07-31
DE10335847A DE10335847A1 (en) 2003-07-31 2003-07-31 Electric arc reduction furnace for reducing slag in the recovery of metallic components comprises a charging opening for charging material which simultaneously acts as an exhaust gas line opening for the gas produced
PCT/EP2004/006687 WO2005022062A1 (en) 2003-07-31 2004-06-21 Electric reducing furnace

Publications (2)

Publication Number Publication Date
CA2534623A1 true CA2534623A1 (en) 2005-03-10
CA2534623C CA2534623C (en) 2011-11-15

Family

ID=34072058

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2534623 Expired - Fee Related CA2534623C (en) 2003-07-31 2004-06-21 Electric reducing furnace

Country Status (12)

Country Link
EP (1) EP1658467B1 (en)
CN (1) CN100537784C (en)
AT (1) ATE377740T1 (en)
AU (1) AU2004269087B2 (en)
BR (1) BRPI0413109A (en)
CA (1) CA2534623C (en)
CL (1) CL2004001844A1 (en)
DE (2) DE10335847A1 (en)
ES (1) ES2293277T3 (en)
MX (1) MXPA06001136A (en)
WO (1) WO2005022062A1 (en)
ZA (1) ZA200510205B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8016912B2 (en) 2007-09-14 2011-09-13 Barrick Gold Corporation Process for recovering platinum group metals using reductants
US20150135896A1 (en) * 2012-06-27 2015-05-21 Nippon Steel & Sumitomo Metal Corporation Method of reduction processing of steel-making slag

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1396815B1 (en) * 2009-12-04 2012-12-14 Danieli Off Mecc DEVICE AND PROCEDURE FOR FEEDING METAL MATERIAL IN A MERGER PLANT
CN106403581B (en) * 2016-11-16 2019-06-07 攀枝花市仁通钒业有限公司 With sealed electric arc furnaces filler device
RU2677550C2 (en) * 2017-05-29 2019-01-17 федеральное государственное бюджетное образовательное учреждение высшего образования "Воронежский государственный университет" (ФГБОУ ВО "ВГУ") Method of using construction wastes as component of slag-forming mixtures

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4836732A (en) * 1986-05-29 1989-06-06 Intersteel Technology, Inc. Method and apparatus for continuously charging a steelmaking furnace
AT401527B (en) * 1991-12-20 1996-09-25 Voest Alpine Ind Anlagen METHOD FOR MELTING SCRAP, AND DEVICE FOR CARRYING OUT THIS METHOD
JPH07190629A (en) * 1993-04-15 1995-07-28 Ishikawajima Harima Heavy Ind Co Ltd Scrap material preheating and charging device
JP2861794B2 (en) * 1994-03-18 1999-02-24 日本鋼管株式会社 Melting furnace with raw material preheating tank
PL352472A1 (en) * 1999-06-23 2003-08-25 Sms Demag Ag Method of recovering metallic chromium from a chromium oxide containing slag
ATE383447T1 (en) * 2001-09-28 2008-01-15 Jean Davene INTEGRATED PRODUCTION OF REINFORCED CONCRETE ELEMENTS WITH VALORIZATION OF THE METALLURGICAL SLAG ARISING DURING CONCRETE STEEL PRODUCTION

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8016912B2 (en) 2007-09-14 2011-09-13 Barrick Gold Corporation Process for recovering platinum group metals using reductants
US20150135896A1 (en) * 2012-06-27 2015-05-21 Nippon Steel & Sumitomo Metal Corporation Method of reduction processing of steel-making slag
US9217185B2 (en) * 2012-06-27 2015-12-22 Nippon Steel & Sumitomo Metal Corporation Method of reduction processing of steel-making slag
US9238846B2 (en) 2012-06-27 2016-01-19 Nippon Steel & Sumitomo Metal Corporation Reduction processing apparatus for steel-making slag and reduction processing system for steel-making slag
US9534266B2 (en) 2012-06-27 2017-01-03 Nippon Steel & Sumitomo Metal Corporation Slag-supplying container for use in electric furnace for reduction processing of steel-making slag

Also Published As

Publication number Publication date
ATE377740T1 (en) 2007-11-15
BRPI0413109A (en) 2006-10-03
ES2293277T3 (en) 2008-03-16
MXPA06001136A (en) 2006-04-24
DE10335847A1 (en) 2005-02-17
EP1658467B1 (en) 2007-11-07
CN1829891A (en) 2006-09-06
ZA200510205B (en) 2006-10-25
AU2004269087A1 (en) 2005-03-10
CN100537784C (en) 2009-09-09
DE502004005447D1 (en) 2007-12-20
WO2005022062A1 (en) 2005-03-10
EP1658467A1 (en) 2006-05-24
AU2004269087B2 (en) 2010-05-20
CA2534623C (en) 2011-11-15
CL2004001844A1 (en) 2005-05-20

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Effective date: 20200831