Oversize continuous-production energy-saving environment-friendly aluminum electrolysis cell

Abstract

The invention discloses an oversize continuous-production energy-saving environment-friendly aluminum electrolysis cell, particularly an electrolysis cell with the current intensity of greater than 400kA. The electrolysis cell is mainly composed of a cell shell, (9), a cell lining (4) and an upper structure (10), wherein the upper structure (10) is provided with a novel continuous automatic baked anode (1); an anode network conductive system (2) is arranged in the (1); and the upper structure (10) is also provided with a conventional aluminum oxide blanking system (6), an anode cross beam bus (5) and an anode paste automatic blanking and sealing device (3). The oversize aluminum electrolysis cell can implement continuous energy-saving production. The number of anodes can be set and the anode conductive network can be configured according to the actual cell type, thereby implementing the optimized current configuration in the anode and also implementing continuous energy-saving production of the oversize aluminum electrolysis cell. Besides, the automatic baked anode and blanking pipeline are sealed to implement clean production. The cell lining, bus structure and the like do not need to be changed, and thus, the electrolysis cell is easy to implement.

Description

technical field [0001] The invention relates to a lifetime aluminum electrolytic cell, in particular to an extra-large continuous production energy-saving and environment-friendly aluminum electrolytic cell. Background technique [0002] The traditional Hall-Héroult aluminum electrolysis process has always been the only method for industrial aluminum smelting, and the aluminum electrolytic cell is its core equipment. Overall, the structural development of aluminum electrolytic cells has gone through the course of small self-baking cells, small pre-baking cells, large pre-baking cells and extra-large pre-baking cells. Traditional self-baking cells have been completely eliminated in the industry due to environmental protection and other reasons. , the current mainstream electrolyzers are all large or super-large prebaked aluminum electrolyzers. However, due to the discontinuous production of the anodes of the prebaked aluminum electrolytic cells, on average each aluminum elec...

AI Technical Summary

Problems solved by technology

The current prebaked anode of aluminum electrolysis is a discontinuous process. When the cell shape of the electrolytic cell becomes larger and the pole distance becomes lower and lower, the disadvantages of the prebaked anode become more prominent: first, the prebaked anode The anode needs a special anode production workshop for anode production, and it needs to go through a series of complicated processes, so the comprehensive energy consumption of the prebaked aluminum electrolytic cell (the energy consumption of the production of anode containing carbon) is obviously higher than that of the self-baked cell; secondly, the prebaked aluminum electrolytic cell Frequent replacement of baked anodes will continue to destroy the stability of the electrolytic cell, making the electrolytic cell in abnormal production. Such repeated replacement between normal and abnormal states will make it difficult to fundamentally reduce the energy consumption of the electrolytic cell

Therefore, the current prebaked anode aluminum electrolytic cell is not conducive to the stable production and deep comprehensive energy saving of aluminum electrolysis

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