Metallurgical vessel
US7364691B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2005 |
| Grant date | Apr 29, 2008 |
| Priority date | — |
| Expiry date | Oct 2, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF27D1/12
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A metallurgical vessel having a cylindrical upper end section and a top section fitted to the upper end of another section to form a top closure of the vessel about a central opening through which to extend a gas injection lance for injecting gas into the vessel. Top section is formed as a two-part domed construction comprising an outer annular panel welded to the vessel top section and an inner annular panel removably fastened to outer panel, both panels being formed with inwardly concave curvature so as to form together the continuously domed top section. The two panels are fastened together by clamping bolts extended through outturned flanges formed on annular flanges standing up from the panels. On release of bolts panel is removable to provide access to the interior of the vessel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.