400kA系列电解槽节能降耗实践应用研究OA

Aiming at the common industry problems of high energy consumption and insufficient operational stability of 400KA large-scale prebaked electrolytic cells,combined with the full-life cycle operation characteristics of electrolytic cells,an energy-saving and consumption-reducing technology system was constructed from three dimensions:equipment upgrading and transformation,process optimization and regulation,and intelligent system application.By adopting practical measures such as new structural materials,optimized welding processes,and upgraded intelligent control systems,the dual goals of improving the operational efficiency and reducing energy consumption of electrolytic cells were achieved.Industrial application data from three typical production workshops shows that after transformation,the DC power consumption of aluminum liquid in electrolytic cells is reduced to below 12650 kWh/t·Al,the furnace bottom voltage drop is controlled within 200 mV,the sidewall temperature is stabilized below 340℃,and the number of anode adjustments is reduced by 30％.Various technical indicators have reached the advanced level in the industry.This research provides a replicable technical path and engineering experience for energy saving and consumption reduction of large-scale electrolytic cells,and is of great significance for promoting the green and low-carbon development of the electrolytic aluminum industry.