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本文分析了氧化铝厂和电解铝厂的能耗情况。对氧化铝厂提出了提高溶出温度、取消脱硅工序、利用种分精液加热种分母液、采用二段闪蒸流程、实现窑外分解和回转窑焙烧改为流态焙烧等节能技术措施,预计的节能效果为3×10~6kcal/t氧化铝;对电解铝厂提出了降低铝电解槽电压降、改进阴极和阳极质量及其结构,应用电子计算机控制电解生产过程,以及对电解铝厂进行技术改造等节能措施。
This paper analyzes the energy consumption of alumina plants and electrolytic aluminum plants. The alumina plant proposed to improve the dissolution temperature, removal of desiliconization process, the use of seed semen to heat the seed mother liquor, the use of two flash process, to achieve kiln decomposition and rotary kiln roasting instead of fluidized roasting and other energy-saving technologies is expected The energy saving effect is 3 × 10 ~ 6kcal / t alumina; the aluminum smelter is proposed to reduce the voltage drop of the aluminum reduction cell, improve the quality of the cathode and the anode and the structure thereof, control the electrolytic production process by a computer, and conduct the aluminum smelter Technical transformation and other energy-saving measures.