The nation’s largest aluminum electrolysis cell series has achieved technological innovation

Larger aluminum electrolytic cell series in the country has achieved technological innovation. Henan Yugang Longquan Aluminum Co., Ltd. has adhered to the road of scientific and technological innovation, and has made significant technological and technological innovations in the operation of its 300kA electrolytic cell. The company's recently completed electrolytic cell does not stop the repair technology project on the furnace, so that the company can produce 183 tons of aluminum per year, a direct economic benefit of 2.65 million yuan, to avoid economic losses of 8 million yuan. Longquan Aluminum has an annual output of 200,000 tons of electrolytic aluminum, and its electrolysis adopts a series of 300kA large-scale pre-baked electrolytic tanks, which are 256 sets of large-scale prebaked electrolytic tanks in the country, and uses silicon carbide in a large area in the electrolytic tank manufacturing process. Combining silicon nitride side carbon block technology, there is no mature experience in equipment operation, maintenance, and maintenance. After the company was put into operation in June last year, after more than one year of operation, there were individual electrolytic tanks that experienced redness on the side of the furnace and unstable operation. If the electrolysis tank is stopped and overhauled, it will be too costly. However, if there is no overhaul, there will be a possibility of leaks and greater losses. "Urban disease" must be cured, otherwise it will affect the stable operation of the entire electrolyzer series. In order to solve this problem, since August this year, Longquan Aluminum Company has persisted in relying on scientific and technological progress, intensified technological transformation, actively applied new technologies, new materials, and new processes, and successively conducted six electrolyzers under normal operating conditions. The success of the furnace repair has created a precedent for the repair of the non-stop tank at the side of the 300kA electrolyzer. In addition, the company also carried out technological transformation of computer centralized control, multi-function unit air compressor system and hydraulic system, and invested more than 800 million yuan to build MIS office automation system, which greatly improved the company's work efficiency and modern operation capabilities. According to statistics, since the beginning of 2003, the company has spent 17.9 million yuan on science and technology projects and technological innovations. It has implemented a total of 34 technological transformation projects to solve 26 major problems that affect safe production. Today, the operation of the electrolytic cell is safe and reliable, the utilization rate of equipment is obviously improved, and a good situation of safe production has emerged. Source: Chinalco Information Network

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