Huludao Copper Industry optimized the liquid inlet method, reducing the operation of two acid pumps, and is expected to save over 96,000 kWh of electricity annually, achieving more significant results in overall cost reduction. Recently, the electrolysis production operation area of the copper cathode plant carried out a bold transformation of the liquid inlet method for the copper removal system in the liquid purification process. Focused on achieving the annual targets set by the branch plant, the operation area took bold responsibility and acted proactively, further enhancing production efficiency and resource utilization rate. Guided by the overall vision of the branch plant, the operation area carried out a bold transformation of the liquid inlet method for the copper removal system in the liquid purification process.