GB1419363A - Metal refining - Google Patents
Metal refiningInfo
- Publication number
- GB1419363A GB1419363A GB2398474A GB2398474A GB1419363A GB 1419363 A GB1419363 A GB 1419363A GB 2398474 A GB2398474 A GB 2398474A GB 2398474 A GB2398474 A GB 2398474A GB 1419363 A GB1419363 A GB 1419363A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tuyere
- furnace
- refining
- passage
- metal
- 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
- 239000002184 metal Substances 0.000 title abstract 6
- 229910052751 metal Inorganic materials 0.000 title abstract 6
- 238000007670 refining Methods 0.000 title abstract 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 2
- 238000007664 blowing Methods 0.000 abstract 2
- 239000012530 fluid Substances 0.000 abstract 2
- 239000007789 gas Substances 0.000 abstract 2
- 239000001301 oxygen Substances 0.000 abstract 2
- 229910052760 oxygen Inorganic materials 0.000 abstract 2
- 238000012856 packing Methods 0.000 abstract 2
- 239000004215 Carbon black (E152) Substances 0.000 abstract 1
- 239000000654 additive Substances 0.000 abstract 1
- 229910010293 ceramic material Inorganic materials 0.000 abstract 1
- 229910000514 dolomite Inorganic materials 0.000 abstract 1
- 239000010459 dolomite Substances 0.000 abstract 1
- 239000000446 fuel Substances 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 239000003595 mist Substances 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
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
- C21C5/04—Manufacture of hearth-furnace steel, e.g. Siemens-Martin steel
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
1419363 Refining metals by bottom blowing EISENWERK-GESELLSCHAFT MAXIMILIANSHUTTE mbH 30 May 1974 [31 May 1973] 23984/74 Heading C7D [Also in Division F4 In a metal refining furnace, a refining fluid e.g. oxygen is injected through a tuyere projecting through the furnace wall via a passage below the normal in use surface of the melt, and molten metal is discharged from the same passage on the completion of refining. In an open hearth furnace, Fig. 3, a lance 26 having an inner passage for oxygen to air, which may carry particulate additives, and an outer passage for a protective fluid e.g. a hydrocarbon, mist gas, steam or CO 2 , extends through the normal taphole and is sealed in place by a dolomite or other packing. The tuyere 26 is directed upwardly by a mound 48 of packing within the furnace. The end of the tuyere has a refractory sleeve 50. Metal may be heated in the furnace by fuel and air injected through the tuyere. Inert gas may be supplied to both passages at the end of the blowing period, until the furnace is to be tapped. When the gas flow is cut off, molten metal flows into the tuyere which may be destroyed, and issues from the taphole. The tuyere may be of ceramic material and may be coated with pitch.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US36577573A | 1973-05-31 | 1973-05-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1419363A true GB1419363A (en) | 1975-12-31 |
Family
ID=23440304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2398474A Expired GB1419363A (en) | 1973-05-31 | 1974-05-30 | Metal refining |
Country Status (3)
| Country | Link |
|---|---|
| BR (1) | BR7404520D0 (en) |
| DE (1) | DE2425947A1 (en) |
| GB (1) | GB1419363A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2719981C3 (en) * | 1977-05-04 | 1987-12-03 | Eisenwerk-Gesellschaft Maximilianshütte mbH, 8458 Sulzbach-Rosenberg | Steelmaking process |
| MX154705A (en) * | 1979-12-21 | 1987-12-02 | Korf Ikosa Ind Aco | IMPROVED OVEN FOR MELTING AND TUNING SCRAP, SPONGE IRON, RAW IRON AND LIQUID IRON FOR STEEL PRODUCTION |
-
1974
- 1974-05-30 GB GB2398474A patent/GB1419363A/en not_active Expired
- 1974-05-30 DE DE19742425947 patent/DE2425947A1/en active Pending
- 1974-05-31 BR BR452074A patent/BR7404520D0/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BR7404520D0 (en) | 1975-09-23 |
| DE2425947A1 (en) | 1974-12-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |