200kA节能型铝电解槽热平衡诊断及工艺优化
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摘要
电解槽热平衡状态直接影响到电解槽的运行状态和能耗指标,良好的热平衡状态是电解槽获得理想指标的前提和保障。本文对某企业200kA系列节能型铝电解槽热平衡状态进行了详细的分析和诊断,指出了热平衡方面存在的问题,根据问题制定了针对性的改进措施,取得了吨铝直流电耗降低114kWh的良好效果。本研究可以为铝电解槽热平衡分析诊断和节能降耗提供借鉴和参考。
The thermal balance state of electrolyzer directly affects the operation state and energy consumption index of electrolyzer. A good thermal balance state is the premise and guarantee for the electrolyzer to obtain the ideal index. In this paper, the thermal balance state of 200 kA series energy-saving aluminium reduction cells in an enterprise is analyzed and diagnosed in detail. The existing problems in the thermal balance are pointed out. According to the problems, the corresponding improvement measures are formulated, and the good effect of reducing the direct current consumption per ton of aluminium by 114 kWh is achieved. This study can provide reference for the diagnosis of thermal balance of aluminium reduction cell and energy saving and consumption reduction.
The thermal balance state of electrolyzer directly affects the operation state and energy consumption index of electrolyzer. A good thermal balance state is the premise and guarantee for the electrolyzer to obtain the ideal index. In this paper, the thermal balance state of 200 kA series energy-saving aluminium reduction cells in an enterprise is analyzed and diagnosed in detail. The existing problems in the thermal balance are pointed out. According to the problems, the corresponding improvement measures are formulated, and the good effect of reducing the direct current consumption per ton of aluminium by 114 kWh is achieved. This study can provide reference for the diagnosis of thermal balance of aluminium reduction cell and energy saving and consumption reduction.
引文
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[2]冯乃祥.铝电解[M].北京:化学工业出版社,2006.
[3]邱竹贤.预焙槽炼铝(第三版)[M].北京:冶金工业出版社,2005.
[4]王富强,张钦菘,刘伟,等.数值模拟技术在电解槽热平衡诊断中的应用[J].轻金属,2019(1):25-28.
[5]沈冰,李贤.240kA铝电解槽电热场测试与分析[J].有色金属:冶炼部分,2015,(10):49-53.
[6]华桂林,曾凡炯,李俊,等.230kA铝电解槽物理场测试分析与技术条件优化[J].中国工程科学,2012,14(2):69-79.
[7]杨晓东,刘伟,周东方,等.大型铝电解槽节能技术的研究与实践[J].轻金属,2014(12):22-28.
[8]张钦菘,杨晓东,刘雅锋.预焙槽的三维电热场仿真[J].轻金属,2012(3):26-29.