China Nonferrous Metallurgy

With the increasing current intensity, the thermal field and flow field generated by the aluminum reduction cell are more complex. Based on the COMSOL Multiphysics 3D simulation software, the thermal field slice model and the flow field full cell model are established. The thermal field and flow field of a 400kA aluminum reduction cell of a manufacturer are studied. The accuracy of the simulation and the rationality of the manufacturers design are verified by comparing the test results and simulation results with the field test data. On the basis of numerical simulation, it is verified that nano materials are added to the side and bottom of the aluminum reduction cell, and the maximum temperature of the aluminum reduction cell is from 978℃ to 985℃, which shows that the aluminum reduction cell has a good thermal insulation effect. The flow field of the aluminum reduction cell with a height of 260~310mm aluminum liquid layer is studied, and it is found that the aluminum level is relatively stable within the range of 270~280mm.