Blow pipe and gas lance for blast furance
US5544868A · kind A · utility
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5References
5Claims
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Assignee
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Key dates
| Filing date | Jul 31, 1995 |
| Grant date | Aug 13, 1996 |
| Priority date | — |
| Expiry date | Jul 31, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21B5/003
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An improved fuel lance and blow pipe system for injecting supplemental fuel into a blast furnace includes a lance support on the blow pipe housing by use of a quick disconnect coupling for releasably coupling the lance to the blow pipe and accurately fix the lance to discharge supplemental fuel into the hot blast. The coupling can be manually operated to disconnect the lance, without use of tools, to permit the lance to be retracted for inspection or replacement, or to facilitate packing of the tuyeres directing the hot blast into the furnace.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.