Enclosure for metallurgical vessels
US4168824A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 23, 1977 |
| Grant date | Sep 25, 1979 |
| Priority date | — |
| Expiry date | Nov 23, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/25
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An open-topped vessel for converting molten ferrous metal to steel is pivotal about a horizontal axis and has bottom tuyeres for blowing oxygen or other gases upwardly through molten metal. An enclosure at least partially surrounds the vessel and cooperates with a smoke hood to prevent the escape of pollutants when the vessel is in its vertical position. A pair of access doors are provided for closing an opening provided in the enclosure laterally of the vessel tilt axis and are mounted for movement in opposite directions. An auxiliary smoke hood is mounted in the enclosure above the opening for capturing pollutants when the vessel is tilted toward said opening for being charged. The inner surface of the doors are formed of a plurality of tubular members which extend generally vertically and are connected to inlet and outlet headers at their opposite ends. The doors may be provided with a removable section in the region most directly impacted by materials discharging from the vessel when the vessel is tilted. The edges of the doors are provided with a sealing structure and one or both of the doors may be provided with a small operature for sampling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.