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首页> 外文期刊>Aluminium >The 124th TMS-Meeting in Las Vegas, February 12-16: Review of the reduction technology sessions, Part Ⅱ
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The 124th TMS-Meeting in Las Vegas, February 12-16: Review of the reduction technology sessions, Part Ⅱ

机译：2月12日至16日在拉斯维加斯举行的第124届TMS会议：还原技术会议回顾，第二部分

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Jim Gillis (Intalco Aluminum Company) was session chairman of the Reduction Technology V Session, which treated especially energy and current efficiency questions. Walker and coworkers [27] dem-onstrated that three Performance criteria are necessary to determine the number of point feeders re-quired in an aluminium reduction cell. These are: acceptable alumi-na dissolution, satisfactory mix-ing, and a satisfactory rate of alu-mina concentration increase after an anode effect. Slow dissolution of agglomerates and a risk of sludge formation is expected to re-sult if significantly larger quan-tities of alumina are added. Criteria proposed for avoiding alumina concentration gradients in the cell do not ensure good alumina dissolution. Laboratory investigations into continuous alumina feeding show that, for alumina to dissolve immediately, extremely low addi-tion rates are required. Based on these results, one continuous feed-er would be required for every 25 to 50 kA of current.
机译：Jim Gillis（Intalco铝公司）曾担任Reduction Technology V Session的会议主席，该会议特别处理了能源和电流效率问题。 Walker和同事[27]证实了三个性能标准对于确定铝电解槽中需要的点进料器的数量是必要的。它们是：可接受的铝-钠溶解，令人满意的混合以及在阳极效应后令人满意的铝-铝浓度增加速率。如果添加大量氧化铝，则预计将导致团聚体缓慢溶解和形成淤渣的风险。为避免电解池中氧化铝浓度梯度而提出的标准不能确保良好的氧化铝溶解。对连续进料氧化铝的实验室研究表明，要使氧化铝立即溶解，需要极低的添加速率。根据这些结果，每25至50 kA电流需要一个连续的馈线。

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