A METHOD FOR AVOIDING THE HORIZONTAL CURRENT IN THE ALUMINUM PAD OF AN ALUMINUM ELECTROLYTIC CELL

摘要

The present invention provides a device used in an aluminum electrolytic cell for producing primary aluminum by Hell-Heroult process. Specifically, a method for avoiding the horizontal current in the aluminum pad of an aluminum electrolytic cell is disclosed. In the present invention, a conductor is arranged at the bottom of a cathode carbon block or below it, and the conductor directly passes through the bottom of the shell. The present invention can avoid the horizontal current in the aluminum pad of an aluminum electrolytic cell, and make the current distribution on the surface of the cathode carbon block much even. It can improve the current efficiency, and greatly increase the stability of the cell, thus it can prolong the life-time of the cell. The present invention has higher practicability. By using the method of the present invention, the problems induced by the horizontal current in the aluminum pad can be solved, so it has very important guiding- significance on the development of larger aluminum electrolytic cell in the future.