The invention relates to the aluminum electrolysis industry, in particular to a method for effectively removing the sticking phenomenon of a shell beating hammer of an aluminum electrolytic bath. The invention relates to a method for eliminating the shell head of an aluminum electrolytic cell, comprising the following steps: 1) adjusting technological technological conditions; two) adjusting steps of a computer control program. The invention has the advantages that: 1. the technology used to eliminate the electrolytic cell shell head phenomenon fundamentally, greatly reduces the labor intensity of workers. 2. the technology should avoid damage due to manual handling process play shell shell head bag hammer, extend the electrolytic tank crust blanking device lifetime. 3. the technology should greatly avoid burst effect and alumina electrobath discharging viscosity imbalance caused by uneven, to ensure efficient and smooth production of electrolytic cell. The present invention is applicable to shell hammer with shell head package in the process of aluminum electrolysis production. ?
【技术实现步骤摘要】
【技术保护点】
一种消除铝电解槽壳头包的方法,其特征是所述的方法包括如下步骤:一)工艺技术条件调整步骤:1)调整工作电压,调整幅度为5~10mv;2)适当降低分子比,降低电解质初晶温度;3)提高操作质量,减少人为干预,调整计算机控制程序,保证计算机对氧化铝添加量的合理控制,将氧化铝浓度降至3.0%以下;4)加强电解槽保温,减少热损失;以上调整综合起来可达到降低氧化铝粘度、降低电解质粘度、提高过热度的目的,能有效消除壳头包的形成;二)计算机控制程序的调整步骤:更改电解槽打壳下料系统程序,将打壳、下料间隔时间延长为原来的一倍,并将下料方式两由点打壳、两点下料更改为两点打壳、四点下料;所述的工艺技术条件的调整:当铝电解槽分子比为2.6,氧化铝粘度为4.0%,过热度为3.8℃时,对铝电解槽参数做以下调整:1)将工作电压提高5mv至4.050V;并加强电解槽保温,减少热损失,将槽温控制在925-935℃之间;2)加大氟化铝的添加量,将分子比降低至2.45;3)通过计算机控制氧化铝添加量,将氧化铝浓度降低至2.5%;调整过热度上升为10.0℃;所述的计算机控制程序的调整:对铝电解槽打壳下料系统程序进行调整,将打壳 ...
【技术特征摘要】
【专利技术属性】
技术研发人员:周虹,贾永皎,毛永庆,杨得生,王昌红,
申请(专利权)人:中国铝业股份有限公司,
类型:发明
国别省市:11
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