Lance/burner for molten metal furnace
US6125133A · kind A · utility
19Cited by
24References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1997 |
| Grant date | Sep 26, 2000 |
| Priority date | — |
| Expiry date | Mar 18, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for providing main gas into a pool of molten metal, which is particularly useful for use in an electric arc furnace. The method employs combustion of secondary oxygen with fuel to form a flame envelope around a main gas stream which protects the main gas from entrainment of ambient gases as it passes through the headspace of the furnace. This enables the gas to retain to a substantial degree its original force upon injection into the headspace and thus may be injected into the furnace at a safe distance from the molten metal surface while still achieving substantially complete penetration into the molten metal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.