Multiflow refining blastpipes for equipping converters for refining
US4277054A · kind A · utility
0Cited by
4References
2Claims
0Family size
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Key dates
| Filing date | Nov 5, 1979 |
| Grant date | Jul 7, 1981 |
| Priority date | — |
| Expiry date | Nov 5, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21C5/48
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Improvements in multiflow refining blastpipes for equipping converters for refining and including at least two concentric tubes 1 and 3, which define between them an annular gap 4 and an annular ring 8 connected by welding onto the outer tube 3, which consist in arranging at the end of the outer tube 3 which is located next to the inlet for the fluids into the blastpipe, a shoulder 12 prolonged by a cylindrical portion 13 which defines an annular chamber 14 for the introduction of a protective fluid, and in arranging the annular ring 8 on the said cylindrical portion 13.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.