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Electrolytic plants and anode assemblies for the production of aluminium, electrolytic cells and apparatus including such plants

A technology of electrolysis equipment and anode components, which is applied in the field of pyrogenic electrolysis to produce aluminum, and can solve the problems of damaged conductors, wear, damage, etc.

Active Publication Date: 2018-10-16
RIOTINTO ALCAN INT LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, during an anode replacement action, breaking a flexible conductor can leave an end of this conductor in the path of the anode block or anode assembly, which can cause mechanical interaction with said conductor, resulting in wear or damage
Furthermore, in the absence of an anode assembly in an electrolytic cell, during maintenance operations, the disconnected end of the flexible conductor may come into contact with the electrolyte within the electrolytic cell, which may result in damage to the conductor or in connection with the operation of the cell. other problems

Method used

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  • Electrolytic plants and anode assemblies for the production of aluminium, electrolytic cells and apparatus including such plants
  • Electrolytic plants and anode assemblies for the production of aluminium, electrolytic cells and apparatus including such plants
  • Electrolytic plants and anode assemblies for the production of aluminium, electrolytic cells and apparatus including such plants

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Embodiment Construction

[0067] figure 1 Two adjacent electrolytic cells 1 for the production of aluminum by electrolysis are shown, each associated with an electrolytic plant 1 according to a first embodiment of the invention.

[0068] compared to figure 1 The following description is given by the Cartesian reference system in relation to each electrolytic cell 1, with the X axis oriented in the transverse direction of the electrolytic cell, the Y axis oriented in the longitudinal direction of the electrolytic cell, and the Z axis in the vertical direction of the electrolytic cell. Orientate in the direction. Portrait orientation, vertical orientation, landscape orientation, portrait orientation, vertical orientation, landscape orientation, longitudinal plane, vertical plane, transverse plane, longitudinal movement, vertical movement and transverse movement are defined with respect to this standard.

[0069] refer to figure 1 On a Cartesian basis in this figure, the cells 1 are arranged perpendicu...

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Abstract

An electrolysis apparatus comprising a tank shell (3) and an inner liner (5) defining an opening (16) suspended from anode supports (13, 17) forming an anode assembly (12) The anode block (15) moves vertically through the opening by means of an anode receiver (25), which is placed outside the space defined by the top of the anode block (15), the anode The receiver includes an anode contact surface (27) co-operating with the anode support (13, 17) to establish an electrical contact therewith and to establish a mechanical contact to move the anode assembly vertically (12). An anode assembly (12). An electrolytic cell and electrolytic apparatus including such an anode assembly.

Description

technical field [0001] The present invention relates to the production of aluminum using pyrogenic electrolysis. More specifically, the present invention relates to electrolysis equipment associated with electrolysis cells employing at least one anode assembly that moves vertically during electrolysis and is powered by an anode conductor. Background technique [0002] Aluminum metal is produced industrially by pyrogenic electrolysis, ie by the electrolysis of alumina solutions in molten cryolite baths (known as electrolyte baths) using the well-known Hall-Héroult process. The bath of electrolyte is contained in cells called "cells", each cell comprising a steel tank shell with an inner liner usually made of a refractory and / or insulating material. The electrolytic cell includes cathode assemblies located at the bottom of the cell, each cathode assembly including a cathode made of a carbonaceous material. The anode is partially immersed in the electrolyte bath. More specif...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25C3/08C25C3/06
CPCC25C3/06C25C3/08C25C3/10C25C3/16C25C3/12
Inventor Y·罗歇F·布伦S·瑞纳乌迪尔
Owner RIOTINTO ALCAN INT LTD