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金刚石选矿厂提升跳汰选别金刚石的技术方法

责任编辑:admin 发表时间:2016-05-10 10:57

  金刚石是我国稀缺而贵重的战略资源,跳汰选别金刚石是选矿的关键环节,其优点是分选效果好,回收率高,工艺过程简单,操作管理方便,是被金刚石选厂和实验室普遍使用的一种方法。影响跳汰选矿的因素很多,主要有跳汰机的结构、入选物料的性质和跳汰机的操作因素等三类。应该指出,影响跳汰过程的各种因素并非互相孤立的,必须进行具体分析,适宜的操作制度,最好由试验确定。

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  物料的粒度范围对跳汰过程有很大影响,跳汰前一般都进行筛分分级但当其它因素随之相应调整后,不论物料粒度范围宽窄,均能获得较好的分选效果。入选物料粒度范围窄时,由于减少了粒度按密度分选的干扰,因而分选条件较易控制。而粒度范围宽时,会出现细粒物料易穿透床层,精矿产率大而质量差,特别是精矿中含大颗粒重矿物少的现象,需要仔细地调整操作条件。适宜宽级别跳汰分选的主要条件是床石粒度范围要窄,水量要小,冲程要大,冲次要低。

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