水力旋流器在氧化铝分解分级中的应用及优化

Application and Optimization of Hydrocyclone in Alumina Decomposition and Classification

结合水力旋流器的原理,将其应用于分解分级中,对铝酸钠溶液进行粒度分级。并针对晶种分解的物料情况和所需要的产品不同,对水力旋流器进行研究改进,使水力旋流器的分级效率稳定在25%~35%,分解槽内氢氧化铝-45μm粒度含量与成品氢氧化铝-45μm粒度含量差值达到8%以上。分解槽内氢氧化铝粒度细化达到45%~50%时,成品底流氢氧化铝粒度控制在30%~35%以下。

The hydrocyclone is applied in decomposition and classification for size grading of sodium aluminate solution combining with the principle of hydrocyclone. The hydrocyclone is researched and improved according to the crystal seed decomposition of material situation and the required product types,the classification efficiency of hydrocyclone shall be stabled at 25% ~ 35%,and the difference value between-45μm particle size content of aluminum hydroxide inside the decomposer and-45μm particle size content of finished aluminum hydroxide product. When the granularity of the aluminum hydroxide inside the decomposer reach to 45% ~ 50%,the underflow particle size of the finished aluminum hydroxide product should be controlled under 30% ~ 35%.