Method of charging electric arc steelmaking furnace
Abstract
Abstract A METHOD OF CONTINUOUSLY CHARGING AN ELECTRIC ARC STEELMAKING FURNACE IS DISCLOSED WHICH GENERATES AN OPAQUE ATMOSPHERE IN THE FURNACE CAPABLE OF REDUCING SUBSTANTIALLY THE TRANSMITTANCE OF RADIANT HEAT FROM THE ARC TO THE REFRACTORY LINING OF THE FURNACE THEREBY DECREASING THE RATE AT WHICH THE FURNACE LINING DETERIORATES. THE OPAQUE ATMOSPHERE IS GENERATED BY INCLUDING IN THE CHARGE A PROPORTON OF VERY FINE PARTICLES CAPABLE OF BEING SUS- PENDED IN THE FURNACE ATMOSPHERE TO FORM AN OPAQUE DUST SUSPENSION THEREIN. THE CHARGE IS FORCIBLY AND LATERALLY INJECTED INTO THE FURNACE TO GENERATE THE DUST SUSPENSION THEREIN. THE DUST-GENERATING PARTICLES SHOULD DESIRABLY BE OF LESS THAN 140 MESH SIZE. CHARGING APPARATUS FOR INJECTING THE PARTICULATE CHARGE INTO THE FURNACE IS ALSO DISCLOSED.
Inventors
- 👤 Juan Celada
- 👤 Nuevo Leon
Bibliographic Details
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |