(中國(guó)鋁業(yè)股份有限公司 鄭州研究院，鄭州，450041)
摘 要: 通過(guò)粒度衡算和質(zhì)量衡算對(duì)氧化鋁種分過(guò)程附聚段進(jìn)行種分過(guò)程粒度變化模型的構(gòu)建，選取合適的模型參數(shù)和動(dòng)力學(xué)方程，應(yīng)用模型計(jì)算某氧化鋁廠種分附聚段出口粒度分布，并與實(shí)測(cè)值進(jìn)行對(duì)比。結(jié)果表明：模型計(jì)算粒度分布與實(shí)測(cè)結(jié)果基本吻合，平均粒度的實(shí)驗(yàn)值與模型計(jì)算值誤差在10%以?xún)?nèi)。
關(guān)鍵字: 鋁酸鈉溶液；種分過(guò)程；粒度分布；模型
（Zhengzhou of Research Institute, Aluminum Corporation of China Limited, Zhengzhou 450041, China）
Abstract:A model of particle size distribution model on the agglomeration process of seeded precipitation during aluminaproduction was contructed according to the population balance and mass balance study on precipitation process. Proper parameters and kinetics equations were selected. The particle size of agglomeration process was calculated by the model and compared with the experimented data in a given alumina refinery. The results show that the calculated and detected data fit well, and the relative error of the average particle size data between model calculation and practical detection is less than 10%.
Key words: sodium aluminate solution; gibbsite precipitation process; particle size distribution; model
