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首页> 外文期刊>Light Metals >STUDY OF ELECTROMAGNETIC FIELD IN 300KA ALUMINUM REDUCTION CELLS WITHrnINNOVATION CATHODE STRUCTURE
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STUDY OF ELECTROMAGNETIC FIELD IN 300KA ALUMINUM REDUCTION CELLS WITHrnINNOVATION CATHODE STRUCTURE

机译：具有创新阴极结构的300KA铝电解槽的电磁场研究

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摘要

Three dimensional steady finite element models have beenrndeveloped to study the effect of the novel structure cathode (NSC)rnon the electromagnetic field in aluminum reduction cells. Inrnaddition to reduction cells, the finite element system includes thernbusbar, ferromagnetic shell and air. Numerical results show therncurrent density, magnetic flux density, electric potential andrnelectromagnetic force is different between NSC and traditionalrncells. The NSC with the convex block can divide the aluminumrnmelt into a number of parts, where the electromagnetic forcerndecreases. There are different small circulations formed aroundrnthe convex blocks in aluminum melt, which not only reduce thernfluctuation and the anode effect caused by lower aluminarnconcentration, but also promote the dissolution of alumina.rnCompared to the traditional aluminum reduction cells, the NSCrncells have the advantage of reasonable current density distributionrnand relatively uniform electromagnetic force distribution, so thatrnthe aluminum melt has smaller fluctuations and higher efficiencyrnof current.
机译：已经开发了三维稳态有限元模型，以研究新型结构阴极（NSC）对铝还原电池中电磁场的影响。除还原单元外，有限元系统还包括母线，铁磁壳和空气。数值结果表明，NSC电池与传统电池的电流密度，磁通密度，电势和电磁力不同。具有凸块的NSC可以将铝熔体分成许多部分，电磁力会减小。 NSCrncells在铝熔体的凸块周围形成不同的小循环，不仅减少了铝浓度降低引起的波动和阳极效应，而且促进了氧化铝的溶解。与传统的铝还原电解槽相比，NSCrncell具有合理的优势。电流密度分布和相对均匀的电磁力分布，使铝熔体的波动较小，效率较高。

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