Low profile aluminum pot shells and method of increasing production capacity of aluminum pot lines

Abstract

An aluminum electrolytic cell comprising: (a) a shell structure including a pair of longitudinally extending side walls, a pair of transversely extending end walls, a bottom wall and an open top with an upper edge; (b) a transverse support structure , which includes a plurality of transverse sills positioned below the shell structure and extending transversely between the side walls, each of the transverse sills having a pair of opposing end portions; and (c) a plurality of compliant binding elements secured to the lateral support structure, each compliant binding element extending vertically along the outer surface of one of the side walls for applying an inwardly directed force to said side wall; wherein the compliant binding The elements are in the form of cantilever springs, each compliant binding element comprising a metal member having a lower end secured to the lateral support structure and a compliant upper free end adapted to move in response to expansion and contraction of the housing structure. Move in and out.

Description

[0001] Cross References to Related Applications [0002] This application claims priority and benefit to US Provisional Patent Application No. 62 / 082,898, filed November 21, 2014, the contents of which are incorporated herein by reference. technical field [0003] The present invention relates to a method for increasing the reaction area within the footprint of an existing tank shell to increase productivity or reduce the capital cost per ton of capacity of a Hall-Heroult series of aluminum electrolysis cells. In another aspect, the present invention relates to an aluminum electrolytic cell structure and a tank shell for realizing the aluminum electrolytic cell structure. Background technique [0004] Aluminum is produced using the Hall-Eroux process. Traditional plants would employ hundreds of pots connected in series and housed in long buildings or pot lines, along with transformers, rectifiers, busbars, cranes, tapping equipment and other auxiliary equipment. [0005] A...

AI Technical Summary

Problems solved by technology

[0016] While additionally achieving the purpose of retaining the liner under sufficient compressive force, existing tank shell designs and the design alternatives proposed in US2861036 and US4421625 suffer from the disadvantage of having a large external structure

This structure limits the area of ​​the cathode that can be accommodated in an electrolyser of given external dimensions

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