JPS5693814A - Method of supplying cooling medium to oxygen blowing part of bottom blown refining furnace - Google Patents
Method of supplying cooling medium to oxygen blowing part of bottom blown refining furnaceInfo
- Publication number
- JPS5693814A JPS5693814A JP17027279A JP17027279A JPS5693814A JP S5693814 A JPS5693814 A JP S5693814A JP 17027279 A JP17027279 A JP 17027279A JP 17027279 A JP17027279 A JP 17027279A JP S5693814 A JPS5693814 A JP S5693814A
- Authority
- JP
- Japan
- Prior art keywords
- cooling gas
- gas
- pipe
- furnace
- refining
- 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.)
- Pending
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
- C21C5/28—Manufacture of steel in the converter
- C21C5/30—Regulating or controlling the blowing
- C21C5/34—Blowing through the bath
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
Abstract
PURPOSE:To supply cooling gas in a cheap self-supplying process by introducing pure O2 and unburnt recovered waste gas as cooling gas each separately; the O2 from the inner pipe of a double pipe at the hearth of a bottom blown refining furnace, the cooling gas from the outer pipe. CONSTITUTION:O2 gas 3 for refining is blown from the center pipe 2 of a double pipe of the hearth of a bottom blown converter 1 into molten steel 4 in the furnace, and cooling gas is blown from the outer pipe 5 to perform refining operation. Waste gas 6 generated from the furnace 1 during refining process is recovered by a recovering unit 7, sent to a reservoir 9, then sent 11 by blower 10 to a combustion equipment 12 for sequential consumption. At this time, part of the recovered gas is branched 13, is pressurized by a compressor 14, and supplied to the outer pipe 5 as cooling gas. Thus, cooling gas is self-supplied to the oxygen blowing part of the hearth, thereby preventing the associated part from erosion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17027279A JPS5693814A (en) | 1979-12-28 | 1979-12-28 | Method of supplying cooling medium to oxygen blowing part of bottom blown refining furnace |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17027279A JPS5693814A (en) | 1979-12-28 | 1979-12-28 | Method of supplying cooling medium to oxygen blowing part of bottom blown refining furnace |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5693814A true JPS5693814A (en) | 1981-07-29 |
Family
ID=15901856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17027279A Pending JPS5693814A (en) | 1979-12-28 | 1979-12-28 | Method of supplying cooling medium to oxygen blowing part of bottom blown refining furnace |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5693814A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5913013A (en) * | 1982-07-12 | 1984-01-23 | Kawasaki Steel Corp | Method for protecting tuyere of blowpipe for refining molten iron |
-
1979
- 1979-12-28 JP JP17027279A patent/JPS5693814A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5913013A (en) * | 1982-07-12 | 1984-01-23 | Kawasaki Steel Corp | Method for protecting tuyere of blowpipe for refining molten iron |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3376752D1 (en) | Process and installation for the treatment of steel in the ladle | |
JPS5623215A (en) | Converter steel making method | |
JPS5693814A (en) | Method of supplying cooling medium to oxygen blowing part of bottom blown refining furnace | |
JPS55158213A (en) | Pefining method of chromium containing steel | |
JPS575808A (en) | Preparation of high manganese steel | |
GB1090826A (en) | Method of smelting iron ore | |
HUP9602352A2 (en) | Method for operating oxigen consumption shaft furnace and shaft furnace for carrying out the method | |
ES8100349A1 (en) | A method for increasing vessel lining life for basic oxygen furnaces. | |
GB738510A (en) | Process for removing magnesium from aluminium | |
JPS6431911A (en) | Iron making method using molten iron trough in blast furnace | |
JPS6473012A (en) | Refining method by using top and bottom blowing refining furnace | |
JPS5967307A (en) | Operating method of converter | |
JPS5255036A (en) | Automatic control method of temperature of molten steel in smelting pr ocess in arc furnace for steel manufacture | |
JPS56169716A (en) | Removal of si from molten pig iron by blowing of oxygen gas | |
SU141493A1 (en) | The method of obtaining waste slag and device for its implementation | |
JPS6475617A (en) | Melting and refining method for scrap | |
JPS648215A (en) | Method for melting iron scrap | |
Parkitna et al. | Use of Pure Blast-Furnace Gas for Heating Soaking Pits in the Katowice Steelworks | |
JPS52147513A (en) | Smelting method of low nitrogen steel at steel making arc furnace | |
GB898986A (en) | Improvements in or relating to the refining of metal | |
Botvinskii | Further Development of the Practice of Deep Blowing of an Open Hearth Bath With Oxygen, Using Roof Lances | |
JPS6439316A (en) | Steel refining method and refining equipment | |
Pantke et al. | Purofer is Setting New Standards for Direct Reduction | |
JPS5644707A (en) | Blowing method of bottom blowing converter | |
JPS55158210A (en) | Production of extra low carbon steel |