GB1262765A - Process and apparatus for controlling the refining of pig-iron - Google Patents
Process and apparatus for controlling the refining of pig-ironInfo
- Publication number
- GB1262765A GB1262765A GB2218469A GB2218469A GB1262765A GB 1262765 A GB1262765 A GB 1262765A GB 2218469 A GB2218469 A GB 2218469A GB 2218469 A GB2218469 A GB 2218469A GB 1262765 A GB1262765 A GB 1262765A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oxygen
- fumes
- determinations
- hood
- slag
- 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
- 229910000805 Pig iron Inorganic materials 0.000 title abstract 2
- 238000000034 method Methods 0.000 title 1
- 238000007670 refining Methods 0.000 title 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 7
- 229910052760 oxygen Inorganic materials 0.000 abstract 7
- 239000001301 oxygen Substances 0.000 abstract 7
- 239000003517 fume Substances 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002893 slag Substances 0.000 abstract 2
- 238000007664 blowing Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 238000005261 decarburization Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000009628 steelmaking Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- C21C5/30—Regulating or controlling the blowing
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)
Abstract
1,262,765. Oxygen steel making. CENTRE NATIONAL DE RECHERCHES METALLURGIQUES. May 1, 1969 [May 3, 1968j, No.22184/69. Heading C7D. Oxygen top-blowing of pig-iron is controlled by measuring the quantity of oxygen blown in; determing the quantity of Co burnt in the hood by measuring the temperature of the fumes, using the ratio K = [CO]/([CO] + [CO 2 ]) representing the proportion of CO in the CO + CO 2 in the fumes and a thermal balance; determining the rate of decarburization, the instantaneous C content of the metal, the distribution of oxygen between the metal and slag and the total quantity of oxygen supplied to the slag from the above measured and determined values; and regulating the blast conditions so that these four parameters approach or follow a predetermined course. The hood may operate with or without sprayed water cooling; the variation of the value of the ratio K may be allowed for in the determinations when its value is continually measured (e.g. by measurement of the noise level close to the mouth of the converter); and the determinations and control may be effected by a preferably digital computer. The control may be affected through the rate of oxygen flow, the height of the lance above the melt or the instantaneous quantity of oxygen blown in up to that time.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU56014 | 1968-05-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1262765A true GB1262765A (en) | 1972-02-09 |
Family
ID=19725587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2218469A Expired GB1262765A (en) | 1968-05-03 | 1969-05-01 | Process and apparatus for controlling the refining of pig-iron |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE731622A (en) |
| DE (1) | DE1921963A1 (en) |
| FR (1) | FR2007753B1 (en) |
| GB (1) | GB1262765A (en) |
| LU (1) | LU56014A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115240784A (en) * | 2022-07-15 | 2022-10-25 | 重庆钢铁股份有限公司 | Regression analysis method of molten iron carbon based on component correlation |
| CN116855668A (en) * | 2023-07-11 | 2023-10-10 | 山东钢铁股份有限公司 | Method for precisely controlling carbon content of converter endpoint |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112662834B (en) * | 2020-11-30 | 2022-08-05 | 攀钢集团攀枝花钢铁研究院有限公司 | Asymmetric bottom blowing CO of converter 2 Method for extracting vanadium |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LU47933A1 (en) * | 1965-02-08 | 1966-08-08 | ||
| LU50939A1 (en) * | 1966-04-20 | 1966-10-20 |
-
1968
- 1968-05-03 LU LU56014D patent/LU56014A1/xx unknown
-
1969
- 1969-04-16 BE BE731622D patent/BE731622A/xx not_active IP Right Cessation
- 1969-04-30 DE DE19691921963 patent/DE1921963A1/en active Pending
- 1969-04-30 FR FR6913761A patent/FR2007753B1/fr not_active Expired
- 1969-05-01 GB GB2218469A patent/GB1262765A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115240784A (en) * | 2022-07-15 | 2022-10-25 | 重庆钢铁股份有限公司 | Regression analysis method of molten iron carbon based on component correlation |
| CN116855668A (en) * | 2023-07-11 | 2023-10-10 | 山东钢铁股份有限公司 | Method for precisely controlling carbon content of converter endpoint |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2007753A1 (en) | 1970-01-09 |
| DE1921963A1 (en) | 1970-01-29 |
| LU56014A1 (en) | 1970-01-13 |
| BE731622A (en) | 1969-10-16 |
| FR2007753B1 (en) | 1973-02-02 |
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