Furnace forehearth electrode groups having less than 90.degree. phase difference between adjacent groups
US4309567A · kind A · utility
1Cited by
3References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 12, 1979 |
| Grant date | Jan 5, 1982 |
| Priority date | — |
| Expiry date | Mar 12, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B3/0023
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A forehearth in a melting furnace is arranged with groups of electrodes and with each group having at least a pair of opposed electrodes. The opposed electrodes are connected to a multiphase power source so that the phase relationship between groups of adjacent electrodes along the forehearth is 90.degree. or less and typically 60.degree.. The electrode groups may be arranged along the path of molten material movement in the forehearth and may be arranged to generate and produce a current across the forehearth. The electrodes may be arranged to enter from the bottom, side or top of the forehearth channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.