GB991579A - Process for producing pig iron in rotary furnace - Google Patents
Process for producing pig iron in rotary furnaceInfo
- Publication number
- GB991579A GB991579A GB37988/62A GB3798862A GB991579A GB 991579 A GB991579 A GB 991579A GB 37988/62 A GB37988/62 A GB 37988/62A GB 3798862 A GB3798862 A GB 3798862A GB 991579 A GB991579 A GB 991579A
- Authority
- GB
- United Kingdom
- Prior art keywords
- slag
- iron
- layer
- oxygen
- ore
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 8
- 239000002893 slag Substances 0.000 abstract 7
- 229910052742 iron Inorganic materials 0.000 abstract 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 3
- 229910052760 oxygen Inorganic materials 0.000 abstract 3
- 239000001301 oxygen Substances 0.000 abstract 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract 2
- 239000003638 chemical reducing agent Substances 0.000 abstract 2
- 239000007789 gas Substances 0.000 abstract 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 1
- 230000002378 acidificating effect Effects 0.000 abstract 1
- 229910052791 calcium Inorganic materials 0.000 abstract 1
- 239000011575 calcium Substances 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 229910002091 carbon monoxide Inorganic materials 0.000 abstract 1
- 239000003575 carbonaceous material Substances 0.000 abstract 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 abstract 1
- 230000001771 impaired effect Effects 0.000 abstract 1
- 229910052749 magnesium Inorganic materials 0.000 abstract 1
- 239000011777 magnesium Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000003345 natural gas Substances 0.000 abstract 1
- 229910052698 phosphorus Inorganic materials 0.000 abstract 1
- 239000011574 phosphorus Substances 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B11/00—Making pig-iron other than in blast furnaces
- C21B11/06—Making pig-iron other than in blast furnaces in rotary kilns
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
Abstract
<PICT:0991579/C6-C7/1> Pig iron is produced in a furnace rotating at not less than 10 r.p.m. about an axis inclined at not more than 45 degrees to the horizontal by forming therein a body of slag and carbonaceous material at a temperature not exceeding 1450 DEG C. and supplying on top of said body comminuted ore and carbonaceous reducing agent in such proportions that a layer of molten iron containing at least 2% and preferably 3% of carbon is formed below the slag. Oxygen or oxygen-rich gas is blown in above the slag in such a way that the reducing conditions at the bath surface are not impaired, the carbon monoxide evolved in the reduction layer burning therewith to provide the necessary heat for the process. An acidic slag may be used or, when phosphorus-rich materials are to be reduced, carbonates and/or oxides of calcium and/or magnesium are added together with pieces of carbonaceous matter sufficiently large to float on the slag, and the conditions are then so regulated that the iron oxide content of the slag is at least 2% calculated as iron. The iron ore charged may have been partially pre-reduced to metallic iron, and the process may be operated either continuously or batchwise. As illustrated, rotary furnace 1 is charged with ore and reducing agent from hopper 23 by a blast of air or natural gas from pipe 24, thereby forming metal layer 5, slag layer 6 and reaction layer 7. Oxygen is blown in through pipes 26, 27, and the exhaust gases escape through opening 11.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1015661 | 1961-10-12 | ||
| SE481562 | 1962-04-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB991579A true GB991579A (en) | 1965-05-12 |
Family
ID=26654559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB37988/62A Expired GB991579A (en) | 1961-10-12 | 1962-10-08 | Process for producing pig iron in rotary furnace |
Country Status (7)
| Country | Link |
|---|---|
| CH (1) | CH437389A (en) |
| DE (1) | DE1433367A1 (en) |
| DK (1) | DK112800C (en) |
| ES (1) | ES281494A1 (en) |
| FI (1) | FI40906B (en) |
| GB (1) | GB991579A (en) |
| LU (1) | LU42504A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3617897A (en) * | 1968-04-25 | 1971-11-02 | Stora Kopparbergs Bergslags Ab | Method for the refining of a carbonaceous metal melt |
| US3793001A (en) * | 1970-05-22 | 1974-02-19 | Centro Speriment Metallurg | Process for manufacturing steel |
-
1962
- 1962-10-08 GB GB37988/62A patent/GB991579A/en not_active Expired
- 1962-10-09 CH CH1183762A patent/CH437389A/en unknown
- 1962-10-10 LU LU42504D patent/LU42504A1/xx unknown
- 1962-10-11 DK DK439762AA patent/DK112800C/en active
- 1962-10-11 ES ES281494A patent/ES281494A1/en not_active Expired
- 1962-10-11 FI FI1836/62A patent/FI40906B/fi active
- 1962-10-11 DE DE19621433367 patent/DE1433367A1/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3617897A (en) * | 1968-04-25 | 1971-11-02 | Stora Kopparbergs Bergslags Ab | Method for the refining of a carbonaceous metal melt |
| US3793001A (en) * | 1970-05-22 | 1974-02-19 | Centro Speriment Metallurg | Process for manufacturing steel |
Also Published As
| Publication number | Publication date |
|---|---|
| DK112800C (en) | 1969-06-02 |
| ES281494A1 (en) | 1963-03-01 |
| LU42504A1 (en) | 1962-12-10 |
| CH437389A (en) | 1967-06-15 |
| FI40906B (en) | 1969-03-31 |
| DK112800B (en) | 1969-01-20 |
| DE1433367A1 (en) | 1968-10-31 |
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