Development and Test Study of a New Classification Equipment for Bauxite Desiliconization
In this paper, a new classification equipment for Bauxite desiliconization is introduced, which combines Centrifugal with gravity and it can separate diaspore and slime effectively in a composite force; The flow field in the equipment was simulated by Fluent software for explaining separation process and principle; the laboratory experiments and pilot tests had been finished on this kind of device, showing that a concentrate with Al2O3 recovery of 90.64% and Al-Si ratio of 6.34 was obtained from the feed with a Al/Si ratio of 4.7 based on one stage desiliconization separation; the pilot tests show that new classification equipment for Bauxite desiliconization can increase the concentration with Al2O3 recovery by 1.59 percent and Al-Si ratio by 0.19 and degrease the Al-Si ratio of tailing by 0.39. The separation index of the new separator is better than the general separator obviously.
Linli Xu, Wenya Tian and Elwin Mao
D. F. Lu et al., "Development and Test Study of a New Classification Equipment for Bauxite Desiliconization", Applied Mechanics and Materials, Vols. 80-81, pp. 1324-1329, 2011