The project is in the process of implementing the national "double high and excellent" project and the industrialization of the 320kA large-scale aluminum electrolytic tank with major national technological achievements. The gap exists between the design and production technology of China's large aluminum electrolyzers and the international advanced level. Based on the design and production technology of China 280KA and GP-320KA electrolyzers, the advanced 320KA super-large aluminum electrolyzer technology and its production technology have been successfully developed. In the groove type, a reasonable large anode size and a narrow processing surface are adopted to optimize the length-width ratio structure of the electrolytic cell. Through the improvement of the multifunctional unit fixture, the operation mode of replacing two anodes at a time is successfully realized, and the operation is improved. The efficiency is almost doubled; the asymmetrical “five-point charging” busbar device is used to obtain the ideal magnetohydrodynamic characteristics, and on this basis, the “five-point blanking” feeding method is adopted; in the original roasting technology Based on the above, the "coking bake roasting start-up" technology and the post-management technology were adopted and improved, and the roasting start-up without leakage and the smooth start-up and stable operation of the electrolytic cell were realized; the "middle-mounted single-point anode lifting mechanism" and "developed" were developed and developed. The combined anode bus transfer device" solves the problem of the unsynchronized "double-point lifting" mechanism of the large-scale aluminum electrolytic cell; the study summarizes the "two-high-seven-low" operation process suitable for the production of a 320kA large-scale aluminum electrolytic cell to make the electrolytic cell Operational indicators have been improved. With the implementation of the project, the design technology and production technology of China's large-scale aluminum electrolytic cells have reached the international advanced level, making the 320kA electrolyzer technology become the core technology and main technology of China's aluminum electrolysis. The trough type and technology have been exported to India, Kazakhstan and other countries, improving China's aluminum electrolysis technology's ability to participate in international competition. The application of this technology has greatly improved the efficiency of aluminum electrolysis production, reduced power consumption, reduced waste emissions, and has significant economic and social benefits. Shanghai Metal Net