Method and apparatus for protecting an injection device disposed in a hot blast conduit of a blast furnace
US5403378A · kind A · utility
3Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1993 |
| Grant date | Apr 4, 1995 |
| Priority date | — |
| Expiry date | Jun 29, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21B5/003
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
To prevent burn-back at a coal dust injection lance which projects into a hot blast conduit of a blast furnace, cooling is effected using atomized coolant. Water is preferred as the coolant. The carrier gas used for the atomized water is either air or the oxygen which is injected through the lance for complete combustion of the coal dust.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.