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本文从力学角度对160KA 铝电解槽的早期破损机理进行了定量分析,并建立了一些相应的验算方法。发现在焙烧阶段,阴极炭块受拉断裂是导致该型电解槽早期破损的主要原因。本文还对阴极炭块的二次断裂、阴极钢棒的受压失稳、炭块的吸钠膨胀以及投料影响,做出了定量判断和估计。防止160KA 铝电解槽的早期破损,在目前是使我国铝工业迅速发展的一个技术关键。因而研究并搞清它的损坏原因,无疑具有重大的意义。
In this paper, the mechanics of the 160KA aluminum electrolytic cell early damage mechanism for quantitative analysis, and established a number of corresponding checking method. Found in the roasting stage, the cathode block tensile fracture is the leading cause of this type of electrolyzer early damage. This paper also made a quantitative judgment and estimate on the secondary fracture of the cathode carbon block, the pressure instability of the cathode rod, the sodium absorption expansion of the carbon block and the feeding. Preventing the early damage of the 160KA aluminum electrolytic cell is a key technology that has made China’s aluminum industry develop rapidly. Therefore, it is undoubtedly of great significance to study and find out the causes of its damage.