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通过床石提升锯齿波跳汰机选矿回收率

责任编辑:金工机械 发表时间:2016-06-19 15:07

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  某矿业公司生产应用锯齿波跳汰机以来,生产使用的跳汰机床石,一直是采用外购的黄铁矿矿石经破碎、筛分制 成,床石的成品率较低,一般仅为50%左右,目前床石的制作成本高达3780元/t。由于购买的黄铁矿纯度不够、密度较低,在生产中不仅随矿浆流失的床石 较多、补充量较大,而且导致跳汰机常因人工床层厚度的频繁变化而影响正常的选别效果,作业指标波动较大;既不利于跳汰选别指标的稳定提高,也不利于稳定磨 矿的浓细度;人工床石的消耗量亦较大,达到87g/t原矿。另外,生产中摩擦变细的人工床石,也常堵塞筛孔或精矿排矿口,造成操作紊乱、筛下补加水耗量 大,尾矿品味较高、金属损失率大。