In the groove type, a reasonable large anode size and narrow processing surface are adopted to optimize the length-width ratio structure of the electrolytic tank. Through the improvement of the multifunctional unit fixture, the operation mode of replacing two anodes at a time is successfully implemented, and the operation is improved. The efficiency is nearly 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 On the basis of this, the “Coke Roasting Start†technology and post-management technology were adopted and improved to achieve no start-up of roasting and stable startup and stable operation of the electrolysis cell. A “central single point anode lifting mechanism†was developed and developed. “Combined anode bus transfer device†solves the problem of the “double-lift†mechanism of large-scale aluminum reduction cells; the study summarizes the “two-high-seven-low†operating process suitable for the production of 320kA large aluminum electrolytic cells. Electrolyzer operation 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 electrolytic cell technology become the core technology and main technology of aluminum electrolysis in China. 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.
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