SU1506886A1 - Method of producing steel in open-hearth furnace - Google Patents
Method of producing steel in open-hearth furnaceInfo
- Publication number
- SU1506886A1 SU1506886A1 SU4349039/02A SU4349039A SU1506886A1 SU 1506886 A1 SU1506886 A1 SU 1506886A1 SU 4349039/02 A SU4349039/02 A SU 4349039/02A SU 4349039 A SU4349039 A SU 4349039A SU 1506886 A1 SU1506886 A1 SU 1506886A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- lances
- oxygen
- stationary
- metal
- cast iron
- Prior art date
Links
Landscapes
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
FIELD: iron metallurgy. SUBSTANCE: invention relates to production of steel with deep blowing metal smelt with oxygen-containing gases in hearth furnaces. Invention objective is to increase stability of stationary deep oxygen lances with furnace lining in metal blowing zone and to reduce consumption of power carriers (fuel, oxygen, cast iron). To achieve this objective, in a method including charging furnace, heating the charge, pouring in liquid cast iron, smelting the charge, and performing heat finishing by means of entering oxygen through stationary lances below level of metal, a portion of oxygen, according to invention, is entered through additional roof lances under metal level to the depth 0.01-0.3 that of fusion with ratio of oxygen input through roof lances to that through stationary lances being 0.5-1.5 and joint blowing time being equal to 0.1-0.8 part of blowing time through stationary lances. Lance stability is increased by 1.5-2 times. EFFECT: increased lance stability and reduced fuel and cast iron consumption. 2 cl, 2 dwg, 3 tbl
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4349039/02A SU1506886A1 (en) | 1987-12-24 | 1987-12-24 | Method of producing steel in open-hearth furnace |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4349039/02A SU1506886A1 (en) | 1987-12-24 | 1987-12-24 | Method of producing steel in open-hearth furnace |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1506886A1 true SU1506886A1 (en) | 1997-01-27 |
Family
ID=60526892
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU4349039/02A SU1506886A1 (en) | 1987-12-24 | 1987-12-24 | Method of producing steel in open-hearth furnace |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1506886A1 (en) |
-
1987
- 1987-12-24 SU SU4349039/02A patent/SU1506886A1/en active
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