绿色矿冶

The application of new materials is of great significance to the energy saving, carbon reduction and quality improvement of electrolytic aluminum production. This paper focused on the application of new materials such as metal materials, coating materials, ceramic materials, carbon materials and refractory materials in the energy saving and carbon reduction technology of large aluminum reduction cells in recent years. The application of metal materials in the electrolytic cell mainly includes low resistance anode steel claw, high conductivity cathode steel rod, super wear-resistant shell hammer, etc. The application of coating materials mainly includes heat reflection insulation coating of the tank cover plate, anode and steel claw oxidation resistance coating, etc. The application of ceramic materials mainly includes ceramic-based cathodes and ceramic-based inert anodes. Carbon materials are mainly used in graphite or graphitized cathode carbon blocks; in terms of refractory materials, there are mainly new anti-seepage and thermal insulation materials, new silicon carbide/carbon composites and so on. While continuously optimizing the production and operation process, domestic electrolytic aluminum production enterprises pay more and more attention to the application of new materials in energy-saving and efficiency-increasing technology. At the same time, it is pointed out that the application of new materials still needs systematic research.