On Continuous PFC Emission Unrelated to Anode Effects
On Continuous PFC Emission Unrelated to Anode Effects
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DOI：
10.1007/978-3-319-48160-9_55
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发表时间：
2011-05
期刊：
影响因子：
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通讯作者：
Wangxing Li;Qingyun Zhao;Jian-hong Yang;Shi-lin Qiu;Xiping Chen;J. Marks;C. Bayliss
中科院分区：
文献类型：
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作者：
Wangxing Li;Qingyun Zhao;Jian-hong Yang;Shi-lin Qiu;Xiping Chen;J. Marks;C. Bayliss
对两个冶炼厂中可能导致与阳极效应无关的PFC连续排放的操作参数进行了调查。对QY冶炼厂阳极电流分布进行了测量。阳极电流的不均匀性与PFC的连续排放之间没有明显的相关性。在LX冶炼厂PFC连续监测过程中，对熔池温度和氧化铝浓度进行了同步测量。当电解槽在稳定的电解液温度和氧化铝浓度下运行时，没有观察到连续的PFC排放。这些因素之间没有明确的关系，需要在其他冶炼厂进行进一步的调查。并对加料机构的影响进行了研究。金属轻放和阳极交换会破坏电池的平衡，导致电池电压升高，从而导致PFC的持续发射。研究发现，PFC的连续发射只发生在某些特定的电池中，即使在相同的线电流下，电池之间的PFC发射也是不同的。持续性PFC排放量仅占PFC总排放量的一小部分。
An investigation was made into operating parameters that could result in continuous PFC emission unrelated to anode effects in two smelters. Anode current distribution was measured in QY smelter. No obvious correlation was observed between the non-homogenous anode current and continuous PFC emission. Bath temperature and alumina concentration were synchronously measured during continuous PFC monitoring in LX smelter. No continuous PFC emissions were observed when reduction cells are operated at stable bath temperature and alumina concentration. No clear relationship emerged among these factors and further surveys need to be made in other smelters. The effect of feeding mechanism was also investigated. Metal tapping and anode exchange can disturb cells’ balance, which result in cell voltage rising, and then may cause continuous PFC emission. It is found that the continuous PFC emission only occur in some particular cells and is different from cell to cell even with the same line current. The continuous PFC emission is only a small portion in total PFC emission.