Study on a New Reduction Technology for Energy Saving

摘要

This paper outlines a new aluminum reduction technology, recently developed in China, for energy reduction. It is found feasible to reduce anode-to-cathode-distance (ACD) and to save energy by changing the properties and structures of the cathodes and lining materials in the reduction cells in a manner that minimizes the impact of the cell magnetic field on molten metal fluctuation. The industrial tests for the cells with the new structure have been conducted recently in China. The test results show that by using the new type of cells the reduction operation can be kept steady at lower ACD, while the energy efficiency will be increased. The characteristics, existing problems and future development of various types of the new energy saving cells are reviewed in this paper.