NOUFERROUS METALLURGICAL EQUIPMENT

This study conducted an in-depth analysis of the blue sulfate crystalline substances adhering to the bottom edges of ISA cathode copper after washing, investigating their causes of formation, and subsequently improved the existing washing process. By optimizing the washing facilities on the cathode stripping unit, the quality of cathode copper washing was significantly enhanced without affecting the units operational efficiency, and the generation of blue sulfate crystalline substances was substantially reduced. The improved process drastically reduced the amount of bottom blue impurities adhering from over 90% to below 5%, and the proportion of cathode copper blocks with exuded blue impurities after prolonged storage also decreased from over 60% to below 20%, with the degree of blue impurities adhering to each block noticeably alleviated. This achievement provides strong support for enhancing the quality of cathode copper products.