Study on structure and simulation of"homogeneous flow"anode in aluminum reduction cells
In order to address the problems of high voltage drop and uneven current distribution in the anode assembly of the existing aluminum reduction cells,a"homogeneous flow"anode structure is proposed:A new type of anode steel rod is designed and embedded in the steel rod groove on the anode carbon block.At the same time,layered composite metal materials are used to replace the aluminum-steel explosive welding block.By using Solid Works and ANSYS software,a 400 kA aluminum reduction cell is numerically simulated and emulated,and the influence of this improved scheme on the voltage drop and current distribution uniformity of anode assembly is investigated.The calculation results show that compared with the current structure,the cur-rent distribution uniformity of the anode assembly is obviously improved,the anode assembly voltage drop is reduced by about 43 mV,in which the anode carbon block voltage drop is reduced by about 36.5 mV,the steel stub voltage drop is reduced by about 12.3 mV,and the DC power consumption per ton of aluminum is reduced by 136 kWh/t-Al.The new type of homogeneous flow anode has remarkable energy-saving effect.
aluminum reduction cellhomogeneous flow anodesimulation calculationenergy-saving and cost-reduction
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