Device for supporting electrodes in an electrolysis installation
The invention relates to a device for supporting electrodes in an electrolysis installation, said support comprising a busbar having electrodes fastened thereto, said electrodes being disposed on either side of the busbar and extending vertically below said busbar, the busbar and said electrodes being designed to be immersed at least in part in an electrolyte that gives off one or more gaseous species of a corrosive nature. The device further comprises a protective element of carbon/carbon material placed under the busbar, the protective element being of length and width that are not less than the length and the width of the busbar.
1. A device for supporting electrodes in an electrolysis installation, said support comprising a busbar having electrodes fastened thereto, said electrodes being disposed on either side of the busbar and extending vertically below said busbar, the busbar and said electrodes being designed to be immersed at least in part in an electrolyte that gives off one or more gaseous species of a corrosive nature,
wherein the device further comprises a protective element placed under an underside of the busbar with said protective element blocking said gaseous species from the underside of the busbar, said protective element being of a length and a width that are not less than the length and the width of the busbar, and wherein said protective element is made of carbon/carbon material.
2. A device according to claim 1 , wherein the protective element is held in grooves formed in the electrodes.
3. A device according to claim 1 , wherein the protective element is fastened to the busbar by fastener members.
4. A device according to claim 1 , wherein the face of the protective element opposite from its face facing the busbar presents a profile that is concave.
5. A device according to claim 4 , wherein said face of the protective element opposite from its face facing the busbar also presents a slope that is inclined towards one of the longitudinal ends of the protective element.
6. A device according to claim 1 , wherein the protective element includes fins on both of its longitudinal sides, the fins extending above the face of said element that faces the busbar and presenting widths that correspond substantially to the gaps present between two adjacent electrodes.
7. A device according to claim 1 , wherein the protective element presents a one-piece structure.
8. A device according to claim 1 , wherein the protective element comprises a plurality of adjacent sectors assembled together via overlap portions.
9. An electrolysis installation including at least one electrode support device according to claim 1 .