Tuyere for metallurgical vessels
US4930757A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 1989 |
| Grant date | Jun 5, 1990 |
| Priority date | — |
| Expiry date | Oct 2, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21C5/48
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A tuyere for a metallurgical vessel comprising a solid metal tuyere body with a central gas feed bore. The gas feed bore contains at least one gas feed pipe. The tuyere body also has at least one water-cooled bore between the outer wall of the tuyere body and the gas feed bore. A water-cooled bore has a water passage for circulating water therethrough. A water cooling header with separated water inlet and outlet is attached to the tuyere body external to the metallurgical vessel. A water passage is provided for a flow of water from the water inlet through the water passage in the water-cooled bore to the water outlet. The cooling capacity of the tuyere is sufficient to cause the formation of a protective encrustation on the end of the tuyere, and to effectively reduce erosion and chemical reaction of the tuyere material and the vessel wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.