Scrap-melting process and electric furnace for carrying out the process
US4821284A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 1987 |
| Grant date | Apr 11, 1989 |
| Priority date | — |
| Expiry date | Jul 30, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A set of conductors comprising at least two return conductors (5) connected to a hearth electrode (3) is arranged along the outer face (11) of the furnace vessel in direct proximity thereto, and the profile and orientation of at least two conductors of the set are determined, in order, as a result of the passage of a direct current of controlled intensity, to generate magnetic fields of which the mutual deflection effects on the arcs, taking into account all the magnetic influences exerted by the other conductors and the various parts of the installation during operation, are such that the arcs are directed towards a specific zone of the molten-metal bath.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.