Automatic pole changing system and pole changing method for aluminum electrolytic cell

Abstract

The invention discloses an automatic aluminum electrolytic bath electrode changing system and an electrode changing method thereof. The automatic aluminum electrolytic bath electrode changing system comprises an automatic electrode changing mechanical arm, wherein the automatic electrode changing mechanical arm has vertical lifting freedom degrees and rectilinear motion freedom degrees in any position within a horizontal plane; a clamping element for fixing an anode clamping guide rod, a sleeve wrench for locking or unlocking an anode clamp, and a first positioning element are arranged at an execution end of the automatic electrode changing mechanical arm; the sleeve wrench is arranged on the automatic electrode changing mechanical arm through a telescopic mechanism; the clamping element, the telescopic mechanism and the sleeve wrench are all electrically controlled automatic executors and are in signal connection with a control module of a groove control machine of an aluminum electrolytic bath together with the first positioning element. By adopting the automatic aluminum electrolytic bath electrode changing system, a conventional aluminum electrolytic bath electrode changing system and an electrode changing method are thoroughly transformed, particularly for an aluminum electrolytic bath without an upper shell, electrodes can be automatically changed, and the electrode changing time can be greatly shortened, so that long-term instable operation of the electrolytic bath is avoided, the energy consumption can be reduced, and meanwhile the labor can be saved.

Description

technical field [0001] The invention belongs to the aluminum electrolytic cell technology, and in particular relates to an automatic pole changing system and method for an aluminum electrolytic cell based on a structure without covering materials. Background technique [0002] Aluminum electrolytic cell is the core equipment of electrolytic aluminum industry. In the production of aluminum electrolysis, the service life of each group of prebaked anodes is about 28-36 days. Therefore, when the life of the prebaked anodes expires, it is necessary to take out the residual anodes and install new anodes. This process is called anode replacement, or anode replacement for short. . The existing aluminum electrolytic cell pole changing process includes a series of steps such as scraping, shelling, pulling out residual anodes, positioning residual anodes, positioning new anodes, removing blocks, installing new anodes, and trimming. In normal production, the time required for pole cha...

AI Technical Summary

Problems solved by technology

[0006] The technical problem solved by the present invention is to provide an automatic pole changing system and method for an aluminum electrolytic cell, especially for an aluminum electrolytic cell without an upper crust, by The automatic changeover greatly shortens the pole change time, thus avoiding the electrolytic cell running in an unstable state for a long time during the pole change process, saving energy consumption and reducing the use of personnel

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