Top blowing refining lance
US5227118A · kind A · utility
3Cited by
2References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 1991 |
| Grant date | Jul 13, 1993 |
| Priority date | — |
| Expiry date | Dec 6, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21C5/4606
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention relates to a refining lance. It relates more particularly to a lance of the kind used for supplying from above, onto a metal bath, the oxidizing gas required for refining the molten metal contained in a metallurgical vessel. It includes a rotating device to divide the refining gas flow into an even number of separate gas jets that are more or less identical. The gas jets exit the head of the lance in angles which are substantially equal with respect to the longitudinal axis of the lance but in diametrically opposite directions with respect to the said axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.