新型旋流器在磨矿分级回路中的应用

新型旋流器依靠调控进料颗粒空间预排列和调整分级空间大小两项新技术,使颗粒在进料腔体内实现了从外到内、由粗至细的排列,增大了粗、细颗粒分别进入底流和溢流的几率,有效提高了分级效率,并在分级区内减小了紊流程度,降低了能量消耗。在江西铜业集团两个选矿厂的工业应用表明,同等工况条件下,相比进口旋流器,获得分级溢流产品-74μm含量提高2%～3%、分级质效率提高5%的生产指标。在湖北三鑫金铜选矿厂的工业应用中验证了其优良的分级性能。

Application of A New Hydrocyclone in Grinding and Classifying Circuit

By means of two new technologies of regulating and controlling the dimensional pre-alignment of the feeding grain and adjusting the classification space size,the grains in the feeding cavity of the new kind of hydrocyclone are put in sequence from the outside to inside and from the coarse to the fine grains.Probabilities of the coarse and fine grains in the underflow and overflow respectively are greatly improved and the classification efficiency are remarkably enhanced.In addition,the turbulent flow in the...