Process for changing anodes in an electrolytic aluminum production cell including adjustment of the position of the anode and device for implementing the process
US7422675B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2005 |
| Grant date | Sep 9, 2008 |
| Priority date | — |
| Expiry date | Aug 18, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53274
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A process for changing an anode of a cell for the production of aluminum by fused bath electrolysis including a plurality of anodes. According to the invention, an anode handling tool is used including a positioning device, a gripping device and a sensor detecting the vertical position of the gripping device, and the position sensor is used to measure the vertical distances traveled by the gripping device with respect to a reference level N. At least one sound or electromagnetic waves beam is then produced in a determined reference line or plane and the passage of the anode in the beam is used to measure the distances. The vertical position of the replacement anode in the cell is determined starting from the values obtained for the traveled distances and the replacement anode is put into this position in the place initially occupied by the spent anode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.