3.2m^(2)大极板锌电积提升电流效率生产实践

Production practice of improving current efficiency of 3.2 m^(2) large electrode plate in zinc electro winning process

丹霞冶炼厂引进3.2 m^(2)大极板锌电积生产工艺后,生产总体平稳,平均电流效率达90%,但偶尔还存在新液质量波动、系统液体TOC含量高及电解槽面管理不到位等问题。针对这些问题,冶炼厂采取了严格控制新液成分、改造配套生产设备、加强生产管控等措施,年平均电流效率由90%提升至91.97%,全年无“烧板”事故,0^(#)锌锭品级率100%,取得了良好经济效益。

Danxia Smelter has introduced a 3.2 m^(2) large electrode plate zinc electrowinning production process,and the production was generally stable,with an average current efficiency of 90%,but occasionally there were fluctuations in the quality of the new liquid,high TOC content in the system liquid,and inadequate management of the electrolytic cell surface,etc.In response to this problem,the smelter has adopted measures such as strict control of the composition of the new liquid,modification of supporting production equipment,and strengthening of production control.The annual average current efficiency has been increased from 90%to 91.97%,and there have been no "plate burning"accidents throughout the year,0^(#)zinc ingot grade rate is 100%,and good economic benefits have been achieved.