FI20061123L - Method for pretreatment of material fed to the melting furnace and preheating system - Google Patents
Method for pretreatment of material fed to the melting furnace and preheating system Download PDFInfo
- Publication number
- FI20061123L FI20061123L FI20061123A FI20061123A FI20061123L FI 20061123 L FI20061123 L FI 20061123L FI 20061123 A FI20061123 A FI 20061123A FI 20061123 A FI20061123 A FI 20061123A FI 20061123 L FI20061123 L FI 20061123L
- Authority
- FI
- Finland
- Prior art keywords
- preheating
- preheating system
- fed
- pretreatment
- melting furnace
- Prior art date
Links
- 239000000463 material Substances 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 2
- 238000002844 melting Methods 0.000 title 1
- 230000008018 melting Effects 0.000 title 1
- 238000010438 heat treatment Methods 0.000 abstract 3
- 238000003723 Smelting Methods 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
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
- F27D13/00—Apparatus for preheating charges; Arrangements for preheating charges
-
- 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
- F27B3/19—Arrangements of devices for discharging
-
- 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
- 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
- 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
- F27D17/003—Extraction of waste gases, collection of fumes and hoods used therefor of waste gases emanating from an electric arc 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
- C21C2100/00—Exhaust gas
- C21C2100/06—Energy from waste gas used in other 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
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Furnace Details (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention relates to a method of pre-treating material that is fed into a smelting furnace (2), such as an electric furnace, whereby the feed material (5) is treated in a preheating system (1) comprising several separate preheating silos (3), each of them being connected, at the lower part thereof, to the smelting furnace by means of at least one feed pipe (6), the preheating system containing a means for distributing the heating gas in the preheating silo (3), whereby the gas mixture (4) that is fed into each preheating silo (3) of the preheating system is heated in a common gas heating unit (8), whereby the temperature of the material in each preheating silo (3) is adjusted by changing the amount of gas mixture (4) that is fed through the gas heating unit (8). The invention also relates to the preheating system.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20061123A FI20061123L (en) | 2006-12-15 | 2006-12-15 | Method for pretreatment of material fed to the melting furnace and preheating system |
ZA200710578A ZA200710578B (en) | 2006-12-15 | 2007-12-05 | Method of pretreating material that is fed into a smelting furnace, and a preheating system |
PCT/FI2007/000292 WO2008087244A1 (en) | 2006-12-15 | 2007-12-13 | Method of pretreating material that is fed into a smelting furnace, and a preheating system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20061123A FI20061123L (en) | 2006-12-15 | 2006-12-15 | Method for pretreatment of material fed to the melting furnace and preheating system |
Publications (2)
Publication Number | Publication Date |
---|---|
FI20061123A0 FI20061123A0 (en) | 2006-12-15 |
FI20061123L true FI20061123L (en) | 2008-06-16 |
Family
ID=37623749
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI20061123A FI20061123L (en) | 2006-12-15 | 2006-12-15 | Method for pretreatment of material fed to the melting furnace and preheating system |
Country Status (3)
Country | Link |
---|---|
FI (1) | FI20061123L (en) |
WO (1) | WO2008087244A1 (en) |
ZA (1) | ZA200710578B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2662096T3 (en) | 2014-01-31 | 2018-04-05 | Danieli & C. Officine Meccaniche, S.P.A. | Plant and method for melting metallic materials |
CN103884193A (en) * | 2014-04-08 | 2014-06-25 | 南京凯盛国际工程有限公司 | Combined adjustable material spreading device |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH645671A5 (en) * | 1980-06-06 | 1984-10-15 | Nippon Kokan Kk | METHOD FOR PREHEATING STEEL SCRAP BY EXHAUST GASES FROM THE ELECTRIC MELTING FURNACE. |
EP0074214B1 (en) * | 1981-08-31 | 1985-11-06 | Kawasaki Jukogyo Kabushiki Kaisha | Scrap preheating system for electric furnace |
FI71008C (en) * | 1984-06-27 | 1986-10-27 | Outokumpu Oy | SAETTING OVER ANORDING FOERBEREDNING AV EN CHARGEBLANDNING AVSEDD ATT INMATAS I EN SMAELTUGN |
FI105236B (en) * | 1998-06-15 | 2000-06-30 | Outokumpu Oy | Feeding apparatus for preparing a feed mixture to be fed to a melting furnace |
DE60131269T2 (en) * | 2001-07-24 | 2008-03-06 | Elti S.R.L. | Process for the preparation of iron scrap to be supplied in the electric furnace and apparatus for carrying out the process |
-
2006
- 2006-12-15 FI FI20061123A patent/FI20061123L/en not_active Application Discontinuation
-
2007
- 2007-12-05 ZA ZA200710578A patent/ZA200710578B/en unknown
- 2007-12-13 WO PCT/FI2007/000292 patent/WO2008087244A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2008087244A1 (en) | 2008-07-24 |
ZA200710578B (en) | 2008-11-26 |
FI20061123A0 (en) | 2006-12-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Transfer of assignment of patent |
Owner name: OUTOTEC OYJ Free format text: OUTOTEC OYJ |
|
FD | Application lapsed |