Abstract:The aluminum horizontal height is an important indicator in the aluminum electrolysis process, and an appropriate aluminum level can maintain a good physical field inside the cell to ensure stable production. Therefore, finding the appropriate aluminum horizontal height is crucial for the good operation of the cell. The author used SOLIDWORKS modeling software to draw four sets of 350KA aluminum electrolysis cells with different aluminum levels. Through COMSOL simulation software, the electric and thermal fields of the four sets of different aluminum electrolysis cells were simulated and compared with the on-site test data of a certain factory"s 350KA electrolysis cell, verifying the accuracy of the simulation. It was found that with the continuous increase of aluminum level, the potential, current density, and overall temperature inside the electrolytic cell all showed a downward trend. By comparing the electric and thermal fields, it is believed that the optimal aluminum level for a 350KA electrolytic cell is in the range of 20cm~22cm, with a pressure drop of 3630mV~3810mV and a high temperature inside the cell of about 950 ℃.