提出利用现有的 60kA自焙‘电解槽改建成 75kA预焙电解槽清洁生产工艺方案。将改建前后产品产量、排污、能耗进行对比 ,结果表明 ,改建方案可操作性强 ,原铝产量提高 2 9.4% ,主要污染物削减 78.6% ,厂界环境空气氟化物浓度由改建前的 3 6.4μg/m3 降至 2 .8μg/m3 ,年节电 1 870× 1 0 4kWh。因此 ,清洁生产工艺方案不仅适合我国国情 ,而且还具有提高产量、改善环境和作业环境质量、节能等显著的经济和社会效益。 Put forward the use of the existing 60kA self baking ’electrolysis tank into 75kA prebaked electrolytic cell cleaning production process. The results show that the rebuilding scheme is feasible, the production of primary aluminum is increased by 2 9.4%, the main pollutant is reduced by 78.6%, and the concentration of fluoride in ambient air of the factory boundary is reduced from 3 6.4μg / m3 dropped to 2.8μg / m3, the annual electricity saving 1870 × 104kWh. Therefore, the cleaner production process plan is not only suitable for China’s national conditions, but also has significant economic and social benefits such as improving output, improving the quality of the environment and operating environment, and saving energy.