ES372643A1 - Controlled slag flow in an electric arc furnace - Google Patents
Controlled slag flow in an electric arc furnaceInfo
- Publication number
- ES372643A1 ES372643A1 ES372643A ES372643A ES372643A1 ES 372643 A1 ES372643 A1 ES 372643A1 ES 372643 A ES372643 A ES 372643A ES 372643 A ES372643 A ES 372643A ES 372643 A1 ES372643 A1 ES 372643A1
- Authority
- ES
- Spain
- Prior art keywords
- slag
- furnace
- electrode
- electric arc
- arc
- 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
Classifications
-
- 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
- C21C5/5211—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace
- C21C5/5217—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace equipped with burners or devices for injecting gas, i.e. oxygen, or pulverulent materials into the furnace
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/02—Details
-
- 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)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Furnace Details (AREA)
Abstract
The slag flow in an electric arc furnace having molten iron therein with a slag cover may be directed towards the electrode by injecting through the furnace sidewall downwards and at an acute angle to the slag cover solid and/or fluid material at a region between the side wall and the electrode such that the injected material causes the slag to flow generally towards the electrode arc region with a velocity and volume rate sufficient to shield the furnace sidewall from the arc. When solid materials are added they may be fluorspar, lime, iron oxide, carbon, iron alloying material, or mixtures thereof. Further steel making materials may be added through the furnace roof e.g. in a stream of air. When fluid material is used this may be cold or pre-heated air.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA34204 | 1968-11-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES372643A1 true ES372643A1 (en) | 1971-11-01 |
Family
ID=4084622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES372643A Expired ES372643A1 (en) | 1968-11-02 | 1969-10-17 | Controlled slag flow in an electric arc furnace |
Country Status (10)
| Country | Link |
|---|---|
| AT (1) | AT295180B (en) |
| BE (1) | BE740913A (en) |
| BR (1) | BR6913752D0 (en) |
| CH (1) | CH499250A (en) |
| DE (1) | DE1953052A1 (en) |
| ES (1) | ES372643A1 (en) |
| FR (1) | FR2022462A1 (en) |
| GB (1) | GB1269124A (en) |
| NL (1) | NL6916429A (en) |
| SE (1) | SE347018B (en) |
-
1969
- 1969-10-15 CH CH1546069A patent/CH499250A/en not_active IP Right Cessation
- 1969-10-17 ES ES372643A patent/ES372643A1/en not_active Expired
- 1969-10-22 SE SE14504/69D patent/SE347018B/xx unknown
- 1969-10-22 DE DE19691953052 patent/DE1953052A1/en active Pending
- 1969-10-28 BE BE740913D patent/BE740913A/xx unknown
- 1969-10-29 GB GB53055/69A patent/GB1269124A/en not_active Expired
- 1969-10-30 BR BR213752/69A patent/BR6913752D0/en unknown
- 1969-10-30 AT AT1022569A patent/AT295180B/en active
- 1969-10-31 FR FR6937469A patent/FR2022462A1/fr not_active Withdrawn
- 1969-10-31 NL NL6916429A patent/NL6916429A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BR6913752D0 (en) | 1973-06-12 |
| DE1953052A1 (en) | 1970-05-27 |
| GB1269124A (en) | 1972-04-06 |
| BE740913A (en) | 1970-04-01 |
| SE347018B (en) | 1972-07-24 |
| AT295180B (en) | 1971-12-27 |
| FR2022462A1 (en) | 1970-07-31 |
| CH499250A (en) | 1970-11-15 |
| NL6916429A (en) | 1970-05-06 |
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