JPS5544573A - Tuyere for oxygen bottom blowing converter - Google Patents
Tuyere for oxygen bottom blowing converterInfo
- Publication number
- JPS5544573A JPS5544573A JP11825678A JP11825678A JPS5544573A JP S5544573 A JPS5544573 A JP S5544573A JP 11825678 A JP11825678 A JP 11825678A JP 11825678 A JP11825678 A JP 11825678A JP S5544573 A JPS5544573 A JP S5544573A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- flowed
- tuyere
- compositively
- inside pipe
- 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
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title 1
- 238000007664 blowing Methods 0.000 title 1
- 229910052760 oxygen Inorganic materials 0.000 title 1
- 239000001301 oxygen Substances 0.000 title 1
- 239000000843 powder Substances 0.000 abstract 5
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract 3
- 235000011941 Tilia x europaea Nutrition 0.000 abstract 3
- 238000005299 abrasion Methods 0.000 abstract 3
- 239000004571 lime Substances 0.000 abstract 3
- 239000000112 cooling gas Substances 0.000 abstract 2
- 239000007789 gas Substances 0.000 abstract 2
- 229910052759 nickel Inorganic materials 0.000 abstract 2
- 238000007670 refining Methods 0.000 abstract 2
- 238000001816 cooling Methods 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000007747 plating Methods 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
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/48—Bottoms or tuyéres of converters
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
Abstract
PURPOSE:To reduce abrasion owing to lime powder by compositively plating inorganic abrasion resistant fine powder together with Ni, Co, etc. on the inside circumferential surfce of the inside pipe in the concentrical double pipe tuyere wherein refining O2 gas and lime powder are flowed in the inside pipe and cooling gas is flowed between the inside and outside pipes. CONSTITUTION:The inside circumferential surface of he inside pipe of the double pipe tuyere t consisting of an inside pipe 1 having a path 4 in which refining O2 gas and lime power are flowed and a path 5 (between the inside pipe 1 and outside pipe 2) where cooling gas is flowed is compositively plated by the following, whereby a lining layer 6 is formed. Namely, inorganic abrasion resistant fine powder such as SiC fine powder is compositively plated together with one or more kinds of Ni, Co, Cr, Cu, Fe etc. According to this method, the lining layer 6 of the inside circumferential surface of the inside pipe may be made thinner in thickenss, the improvement in cooling efficiency becomes possible.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11825678A JPS5544573A (en) | 1978-09-26 | 1978-09-26 | Tuyere for oxygen bottom blowing converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11825678A JPS5544573A (en) | 1978-09-26 | 1978-09-26 | Tuyere for oxygen bottom blowing converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5544573A true JPS5544573A (en) | 1980-03-28 |
Family
ID=14732106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11825678A Pending JPS5544573A (en) | 1978-09-26 | 1978-09-26 | Tuyere for oxygen bottom blowing converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5544573A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62107662U (en) * | 1985-12-27 | 1987-07-09 | ||
| JPH02115550U (en) * | 1989-02-27 | 1990-09-17 |
-
1978
- 1978-09-26 JP JP11825678A patent/JPS5544573A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62107662U (en) * | 1985-12-27 | 1987-07-09 | ||
| JPH02115550U (en) * | 1989-02-27 | 1990-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AR023532A1 (en) | PROCEDURE TO PROCESS STEEL ESCORIES AND FERRIFERAL MATERIALS. | |
| JPS5551162A (en) | Cylinder in aluminum alloy and its preparation | |
| JPS5794508A (en) | Production of reduced iron | |
| Ishii et al. | The Ladle Refining Process for Alloyed Oil Country Tubular Goods Steels at Nippon Kokan KK | |
| CN1415768A (en) | Refining technique for producing copper containing ultra low oxygen | |
| JPS5558396A (en) | Copper plated steel plate excelling in lubricity | |
| JPS5339918A (en) | Production of cast iron and steel by combination of shaft furnace, bupola and converter | |
| JPS5249914A (en) | Sintered alloy having heat resistance and wear resistance for bit to b e used for pening tap hole of blast furnace | |
| CN206529492U (en) | Porous side-spraying type desulfuration spray gun | |
| JPS53109890A (en) | Oxidation catalyst | |
| FR2441581A1 (en) | PROCESS FOR THE MANUFACTURE BY THE PYROGEN OF FINE DIVIDED OXIDE OF A METAL AND / OR A METALLOID | |
| JPS58147504A (en) | Cooling plate for body of blast furnace | |
| Johnson et al. | A world-wide survey of copper converting practice | |
| JPS53109891A (en) | Exhaust gas denitration catalyst | |
| JPS5732312A (en) | Method for improving life of mixer car lining | |
| Kootz | Development of the Steel Production Process From the Aspect of Raw Material Availability | |
| GB1255446A (en) | Nozzles for steel making lances | |
| JPS6453715A (en) | Heat transfer pipe | |
| Schoennahl et al. | Porous Plugs for Ladle Metallurgy: a New Generation of Elements With Oriented Porosity | |
| Hoffman et al. | Extended BOF vessel life at higher required tap temperatures(3050 deg F to 3070 deg F average) | |
| JPS62207817A (en) | Tuyere for steel making having excellent durability | |
| Standler et al. | Integrated Steel Works | |
| Berthet | Flexibility in Cooling Addition Charging in the Mixed Blowing Processes With Vertical Lance | |
| Kablukovskii et al. | Perfecting the Technology of Refining Steel Outside the Furnace | |
| Herriges | Arc Furnaces--the Use of External Shell Water Coolers |