CAJ | 학술논문

采用数值仿真的方法对应用一种可减小铝液中水平电流的新型阴极钢棒的420 kA级铝电解槽进行三维计算，分析这种新型阴极钢棒对铝液中水平电流、槽电压以及电解槽温度分布的影响。结果表明：新型阴极钢棒可有效地减小铝液中X方向的水平电流；新型阴极钢棒中绝缘材料的加入在一定程度上增大了槽电压；当钢棒和钢棒糊接触不是很好时，新型阴极钢棒电解槽比传统阴极钢棒电解槽更容易出现阴极炭块和钢棒连接区域温度过高的情况。该计算结果可为铝电解槽在应用此种新型阴极钢棒后所获得的节能效果以及个别槽在运行过程中出现的问题提供理论依据。
채용수치방진적방법대응용일충가감소려액중수평전류적신형음겁강봉적420 kA급려전해조진행삼유계산，분석저충신형음겁강봉대려액중수평전류、조전압이급전해조온도분포적영향。결과표명：신형음겁강봉가유효지감소려액중X방향적수평전류；신형음겁강봉중절연재료적가입재일정정도상증대료조전압；당강봉화강봉호접촉불시흔호시，신형음겁강봉전해조비전통음겁강봉전해조경용역출현음겁탄괴화강봉련접구역온도과고적정황。해계산결과가위려전해조재응용차충신형음겁강봉후소획득적절능효과이급개별조재운행과정중출현적문제제공이론의거。
3D thermal-electric field of 420 kA aluminum reduction cell with a kind of innovative cathode collector bar was calculated by using numerical simulation method. The effects of innovative cathode collector bars on horizontal current in aluminum liquid pool, cell voltage and temperature distribution were analyzed. The results show that the innovative cathode collector bar can effectively reduce the horizontal current density along X axis. The insulating materials in the innovative cathode collector bars increase the cell voltage to some extent. Under poor contact condition between the cathode collector bar and its paste, the cathode contact area of aluminum reduction cell with innovative cathode collector bars is easier to be overheated than that of aluminum reduction cell with conventional cathode collector bars. The research results can provide theoretical basis for the high energy efficiency achieved by most aluminum smelters and the problems in a few potlines during the application of the innovative cathode collector bar.