ES377986A1 - 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 oreInfo
- Publication number
- ES377986A1 ES377986A1 ES377986A ES377986A ES377986A1 ES 377986 A1 ES377986 A1 ES 377986A1 ES 377986 A ES377986 A ES 377986A ES 377986 A ES377986 A ES 377986A ES 377986 A1 ES377986 A1 ES 377986A1
- Authority
- ES
- Spain
- Prior art keywords
- furnace
- reduction
- melting
- reducing gas
- final
- 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
Links
- 238000002844 melting Methods 0.000 title abstract 6
- 230000008018 melting Effects 0.000 title abstract 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 3
- 229910000831 Steel Inorganic materials 0.000 title abstract 2
- 229910052742 iron Inorganic materials 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 239000010959 steel Substances 0.000 title abstract 2
- 239000012141 concentrate Substances 0.000 abstract 1
- 239000010419 fine particle Substances 0.000 abstract 1
- 239000008187 granular material Substances 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 229910001608 iron mineral Inorganic materials 0.000 abstract 1
- 239000011707 mineral Substances 0.000 abstract 1
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 Of Iron (AREA)
- Manufacture And Refinement Of Metals (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
A two-stage method for the fabrication of steel by reduction and melting of iron minerals in a twin furnace having two furnace bodies that function alternately as a reduction furnace and as a final melting and reduction furnace, respectively, and a connection for transferring gas from one furnace body to another, whose method comprises the operations of generating a reducing gas in the furnace body that functions as a melting furnace and final reduction, passing said reducing gas to the furnace body that functions as a furnace of reduction, passing said reducing gas through a layer of granules arranged in said reduction furnace or through a continuous stream of mineral concentrate supplied to it to reduce it, then passing said reducing gas through iron scrap contained at the bottom of said reduction furnace to extract any fine particles entrained in said reducing gas, and finally te, interchange the functions of said furnace bodies so that the reduction furnace becomes a final reduction and melting furnace and the final melting and reduction furnace becomes a reduction furnace. (Machine-translation by Google Translate, not legally binding)
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 |
|---|---|
| ES377986A1 true ES377986A1 (en) | 1973-01-01 |
Family
ID=20263827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES377986A Expired ES377986A1 (en) | 1969-03-26 | 1970-03-25 | 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) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8300288A (en) * | 1983-01-26 | 1984-08-16 | Hengelmolen Eng | OVEN FOR MELTING METALS. |
| DE102006056672A1 (en) | 2006-11-30 | 2008-06-05 | Sms Demag Ag | Method and apparatus for stainless steel production without electrical energy supply based on pig iron |
| DE102006056671A1 (en) | 2006-11-30 | 2008-06-05 | Sms Demag Ag | Method and apparatus for stainless steel production without electrical energy supply on the basis of pig iron pretreated in a DDD plant |
| CN114480771A (en) * | 2022-02-11 | 2022-05-13 | 中钢设备有限公司 | Integrated iron making device |
Family Cites Families (2)
| 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 |
-
1969
- 1969-03-26 SE SE426769A patent/SE329861B/xx unknown
-
1970
- 1970-03-19 ZA ZA701878A patent/ZA701878B/en unknown
- 1970-03-23 PL PL1970139574A patent/PL80644B1/pl unknown
- 1970-03-24 GB GB41471A patent/GB1311290A/en not_active Expired
- 1970-03-24 DK DK149570A patent/DK126008B/en not_active IP Right Cessation
- 1970-03-24 NO NO1119/70A patent/NO124731B/no unknown
- 1970-03-24 BR BR21772770A patent/BR7017727D0/en unknown
- 1970-03-25 FI FI86070A patent/FI49629C/en active
- 1970-03-25 NL NL7004314A patent/NL146537B/en not_active IP Right Cessation
- 1970-03-25 AT AT277870A patent/AT300866B/en not_active IP Right Cessation
- 1970-03-25 FR FR7010824A patent/FR2035911B1/fr not_active Expired
- 1970-03-25 ES ES377986A patent/ES377986A1/en not_active Expired
- 1970-03-26 JP JP2489970A patent/JPS4838053B1/ja active Pending
- 1970-03-26 LU LU60603D patent/LU60603A1/xx unknown
- 1970-03-26 BE BE748011D patent/BE748011A/en not_active IP Right Cessation
- 1970-03-26 BG BG1428270A patent/BG19194A3/xx unknown
- 1970-03-26 CH CH466870A patent/CH550251A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE2014339A1 (en) | 1970-10-29 |
| FI49629B (en) | 1975-04-30 |
| DK126008B (en) | 1973-05-28 |
| DE2014339B2 (en) | 1973-02-01 |
| FI49629C (en) | 1975-08-11 |
| ZA701878B (en) | 1971-04-28 |
| AT300866B (en) | 1972-08-10 |
| SE329861B (en) | 1970-10-26 |
| BE748011A (en) | 1970-08-31 |
| NO124731B (en) | 1972-05-29 |
| FR2035911B1 (en) | 1975-01-10 |
| PL80644B1 (en) | 1975-08-30 |
| BG19194A3 (en) | 1975-04-30 |
| JPS4838053B1 (en) | 1973-11-15 |
| CH550251A (en) | 1974-06-14 |
| LU60603A1 (en) | 1970-05-26 |
| FR2035911A1 (en) | 1970-12-24 |
| BR7017727D0 (en) | 1973-02-22 |
| NL146537B (en) | 1975-07-15 |
| NL7004314A (en) | 1970-09-29 |
| GB1311290A (en) | 1973-03-28 |
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