悬振选矿机在弓长岭选矿厂铁尾矿再选中的应用

    Application of suspension vibration concentrator in the iron tailings of Gongchangling dressing plant

    • 摘要: 弓长岭选矿厂铁浮选尾矿,品位高,粒度细,-0.074 mm含量约65%,铁矿物在细粒级-0.019 mm富集明显。根据弓长岭选矿厂铁浮选尾矿的矿石性质,利用微细粒级重选设备-悬振选矿机对该尾矿进行再选试验研究,通过分级分选,细粒级部分一次悬振选别可获得品位64.35%,回收率30.93%的铁精矿,粗粒级通过磨矿后(磨矿细度-0.074 mm 85%)再悬振分选,获得的精矿铁品位为59.93%,回收率9.80%,综合铁精矿品位63.22%,回收率40.73%,综合尾矿铁品位降至12.58%,有效的回收了该尾矿中的铁,为弓长岭选矿厂的铁浮选尾矿回收与再利用提供可选方案,其社会及经济效益显著。

       

      Abstract: Iron flotation tailings of Gongchangling ore dressing plant has the characteristics of high grade, fine grain size, -0.074mm content of about 65% and iron minerals in the fine level -0.019mm enrichment. According to the properties of the ore in Gongchangling concentrator iron flotation tailings, experimental studied was carried on the tailings by using fine particle gravity equipment - suspension vibration separator . Through grading separation, a suspension vibration separation for the finelevel can obtain the iron concentrate with the grade of 64.35% and recovery rate of of 30.93%, through grinding (grinding fineness -0.074mm) and cantilever vibration separation for the coarse level, the iron concentrate with the grade of 59.93% and recovery rate of 9.80% can be obtained.The grade of comprehensive iron concentrate is 63.22% and the rate of recovery is 40.73%. The iron grade of composite tailings fell to 12.58%. Iteffectively recoveres the iron in the tailings,and provides an optional scheme for Gongchangling iron flotation tailings recycling and reuse and it has significant social and economic benefit.

       

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