Circuit for the electrical connection of rows of electrolysis cells for the production of aluminum at very high current
US4696730A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1986 |
| Grant date | Sep 29, 1987 |
| Priority date | — |
| Expiry date | Jun 5, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25C3/16
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The invention relates to a circuit for electrical connection between the cells of a row designed for the production of aluminium by electrolysis, by the Hall-Heroult process. It is applied to rows of cells arranged transversely to the axis of the row operating at a current higher than 250,000 amperes and possibly attaining from 300 to 600 kA. An anode frame 6 of the cell of rank n+1 in each line is supplied with current simultaneously by a plurality of upstream risers such as 11, 12, 13 which are substantially equidistant and symmetrical about the vertical plane containing the small axis 1 of the cell and by at least two downstream risers 15, 15S which are substantially symmetrical about this same vertical plane, these downstream risers 15, 15S being supplied by conductors connected to the downstream cathode outputs 4 of the cell of rank n, at least a proportion 24 of these connecting conductors passing beneath the cell of rank n+1 along a path substantially parallel to the large axis of this cell, the direction of the current in these portions 24 of conductors passing from the heads 17 towards the small axis 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.