Method for renewing copper-electrolysis conducting rod at low cost

Abstract

The invention provides a method for renewing a copper-electrolysis conducting rod at a low cost. The method comprises the following steps: a. carrying out boiling-washing treatment on a waste conducting rod, and keeping the outer surface clean and free from impurities; b. repairing cracks existing in the surface of the waste conducting rod, flatly polishing small cracks, and smoothing deep cracks by virtue of copper powder; c. binding the waste conducting rod by virtue of copper wires, placing the waste conducting rod in an electrolysis bath as a cathode, sinking the conducting rod in an electrolyte, and electrolyzing the conducting rod for a period of time; and d. taking out the electrolyzed conducting rod from the electrolysis bath, and washing and trimming the conducting rod to obtain the renewed conducting rod. The method has the following advantages: the strength of the renewed conducting rod is increased, the conducting effect is enhanced, the thought is innovative, the method is scientific and reasonable, low in renewing method and high in efficiency, cyclic utilization for the conducting rod is realized, and great economic benefits are achieved.

Description

technical field [0001] The invention relates to the field of non-ferrous metals, in particular to a low-cost method for renewing copper electrolytic conductive rods. Background technique [0002] The conductive rod mainly plays a conductive role in the process of electrolytic refining of non-ferrous metal copper. For a long time, the conductive rods used in the copper electrolysis workshop of the non-ferrous metal industry will have cracks, pits and other defects on the surface after being used for a certain period of time. The conductive rods with cracks and pits are more likely to be corroded by the electrolyte, and the conductivity becomes worse Therefore, every year in the copper electrolysis industry, a large number of conductive rods are scrapped due to serious cracks and pits, which causes a waste of resources to a certain extent. [0003] The conductive rods used in the prior art are solid and made of copper-clad iron. The production cost is relatively high, but thi...

AI Technical Summary

Problems solved by technology

For a long time, the conductive rods used in the copper electrolysis workshop of the non-ferrous metal industry will have cracks, pits and other defects on the surface after being used for a certain period of time. The conductive rods with cracks and pits are more likely to be corroded by the electrolyte, and the conductivity becomes worse Therefore, every year in the copper electrolysis industry, a large number of conductive rods are scrapped due to serious cracks and pits, which causes a waste of resources to a certain extent.

[0003] The conductive rods used in the prior art are solid and made of copper-clad iron. The production cost is relatively high, but this kind of conductive rod has high strength and is not easy to deform, which can meet the strength requirements of the electrolytic production unit for the conductive rod.

The service life of this kind of conductive rod is about 6 years, and it needs to be remade after reaching the scrap standard, and the cost is expensive

[0004] The reason for the scrapping of copper electrolytic conductive rods is mainly corrosion during the production process, which mainly includes the following situations: (1) The overall corrosion of the conductive rods, the weight is significantly reduced, and the strength becomes weak and easy to deform; (2) The surface of the conductive rods is corroded and covered with small (3) There are deep cracks in the local corrosion of the conductive rod, which seriously exposes the internal iron rod, and the iron entering the electrolyte will cause electrolyte pollution

[0005] The copper electrolysis workshop needs to buy new conductive rods after the conductive rods are scrapped, which undoubtedly increases the production cost of the electrolytic workshop, and to a certain extent, the scrapped conductive rods have the disadvantage of waste of resources, which does not meet the current requirements of reducing costs and increasing efficiency in electrolytic workshops. Production requirements

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