GB1311290A - Methods and furnaces for steel manufacture by direct reduction- and melting of iron ore - Google Patents

Methods and furnaces for steel manufacture by direct reduction- and melting of iron ore

Info

Publication number
GB1311290A
GB1311290A GB41471A GB41471A GB1311290A GB 1311290 A GB1311290 A GB 1311290A GB 41471 A GB41471 A GB 41471A GB 41471 A GB41471 A GB 41471A GB 1311290 A GB1311290 A GB 1311290A
Authority
GB
United Kingdom
Prior art keywords
furnace
melting
iron ore
gas
scrap
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
Application number
GB41471A
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.)
SKF AB
Original Assignee
SKF AB
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 SKF AB filed Critical SKF AB
Publication of GB1311290A publication Critical patent/GB1311290A/en
Expired 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
    • 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
    • C21C5/5252—Manufacture of steel in electric furnaces in an electrically heated multi-chamber furnace, a combination of electric furnaces or an electric furnace arranged for associated working with a non electric furnace
    • 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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C2007/0093—Duplex process; Two stage processes
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Manufacture Of Iron (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

1311290 Reduction of iron ore SVENSKA KULLAGERFABRIKEN AB 24 March 1970 [26 March 1969] 14171/70 Heading C7D [Also in Division F4] Iron ore in the form of concentrates or pellets are reduced in two stages. Using the apparatus shown in Fig. 1 final reduction and melting of a pre-reduced charge is carried out in electrode furnace 2, a hydrocarbon gas such as liquified petroleum gas and steam being introduced through pipes 10 to provide the reducing atmosphere. The exhaust gases pass through duct 5 to furnace 1 which is filled with a scrap charge. One added from hopper 12 meets the incoming gas and is pre-reduced and deposits on the scrap as the gas passes downwardly therethrough to gas unit 6. When the operation in furnace 2 is finished and the melt tapped the functions of the furnaces are reversed, the electrode arch 3 and electrode free arch 4 being interchanged. Furnace 1 becomes a melting furnace while furnace 2 is charged with scrap to act as a pre-reduction furnace.
GB41471A 1969-03-26 1970-03-24 Methods and furnaces for steel manufacture by direct reduction- and melting of iron ore Expired GB1311290A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE426769A SE329861B (en) 1969-03-26 1969-03-26

Publications (1)

Publication Number Publication Date
GB1311290A true GB1311290A (en) 1973-03-28

Family

ID=20263827

Family Applications (1)

Application Number Title Priority Date Filing Date
GB41471A Expired GB1311290A (en) 1969-03-26 1970-03-24 Methods and furnaces for steel manufacture by direct reduction- and melting of iron ore

Country Status (17)

Country Link
JP (1) JPS4838053B1 (en)
AT (1) AT300866B (en)
BE (1) BE748011A (en)
BG (1) BG19194A3 (en)
BR (1) BR7017727D0 (en)
CH (1) CH550251A (en)
DK (1) DK126008B (en)
ES (1) ES377986A1 (en)
FI (1) FI49629C (en)
FR (1) FR2035911B1 (en)
GB (1) GB1311290A (en)
LU (1) LU60603A1 (en)
NL (1) NL146537B (en)
NO (1) NO124731B (en)
PL (1) PL80644B1 (en)
SE (1) SE329861B (en)
ZA (1) ZA701878B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8425831B2 (en) 2006-11-30 2013-04-23 Sms Siemag Aktiengesellschaft Method and device for producing stainless steel without using a supply of electrical energy, based on pig-iron that has been pre-treated in a DDD installation
US8765051B2 (en) 2006-11-30 2014-07-01 Sms Siemag Aktiengesellschaft Method and device for producing pig-iron based stainless steel without using a supply of electrical energy
CN114480771A (en) * 2022-02-11 2022-05-13 中钢设备有限公司 Integrated iron making device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8300288A (en) * 1983-01-26 1984-08-16 Hengelmolen Eng OVEN FOR MELTING METALS.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT232020B (en) * 1961-08-02 1964-02-25 Voest Ag Method and device for the production of liquid iron by reducing iron oxide ore
FR1466981A (en) * 1966-02-03 1967-01-20 Voest Ag Method and device for manufacturing steel and their various applications

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8425831B2 (en) 2006-11-30 2013-04-23 Sms Siemag Aktiengesellschaft Method and device for producing stainless steel without using a supply of electrical energy, based on pig-iron that has been pre-treated in a DDD installation
US8765051B2 (en) 2006-11-30 2014-07-01 Sms Siemag Aktiengesellschaft Method and device for producing pig-iron based stainless steel without using a supply of electrical energy
CN114480771A (en) * 2022-02-11 2022-05-13 中钢设备有限公司 Integrated iron making device

Also Published As

Publication number Publication date
LU60603A1 (en) 1970-05-26
BR7017727D0 (en) 1973-02-22
DE2014339B2 (en) 1973-02-01
AT300866B (en) 1972-08-10
NO124731B (en) 1972-05-29
DK126008B (en) 1973-05-28
FR2035911A1 (en) 1970-12-24
SE329861B (en) 1970-10-26
BG19194A3 (en) 1975-04-30
JPS4838053B1 (en) 1973-11-15
DE2014339A1 (en) 1970-10-29
PL80644B1 (en) 1975-08-30
ES377986A1 (en) 1973-01-01
ZA701878B (en) 1971-04-28
NL7004314A (en) 1970-09-29
FR2035911B1 (en) 1975-01-10
CH550251A (en) 1974-06-14
BE748011A (en) 1970-08-31
FI49629B (en) 1975-04-30
FI49629C (en) 1975-08-11
NL146537B (en) 1975-07-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee