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磁浮选矿是一种最新开发的选矿方法,目的在于在选矿过程中同时利用矿物的磁性和可浮性。采用这种方法,在非磁性矿物被俘出时,可防止磁性矿物被送至泡沫产品。在分选适宜的矿石时,这种方法可减少或全部取消在其它场合中传统的浮选流程和磁选流程所需要的精选和扫选作业。本文描述了用加拿大磁铁矿石所做的磁浮选试验。试验中所采用的矿样含全铁32.89%,其中87.6%为磁性铁(呈磁铁矿形式).一段磁浮选可产出含铁69.1%的最终精矿,总回收率为84.84%;磁性铁的回收率为96.39%。本文把磁浮选方法与传统的磁选和浮选方法进行了综合比较,结果发现,要达到与一段磁浮选同样的结果,采用传统的磁选和浮选方法时至少需进行4段处理。
Maglev flotation is a newly developed beneficiation method that aims to exploit the magnetism and buoyancy of minerals simultaneously in the beneficiation process. With this method, the magnetic minerals are prevented from being sent to the foam product when the non-magnetic minerals are captured. When sorting suitable ores, this method reduces or completely eliminates the sorting and scanning operations required for traditional flotation and magnetic separation processes on other occasions. This article describes a magnetic flotation test using Canadian magnetite. The samples used in the experiment contained 32.89% of the total iron, of which 87.6% were magnetic iron (in the form of magnetite). A section of maglev flotation can produce 69.1% of the final concentrate containing iron, the total recovery was 84.84%; magnetic iron recovery was 96.39%. In this paper, the magnetic flotation method and the traditional magnetic separation and flotation method were compared and found that, in order to achieve the same results with a section of magnetic flotation, the use of traditional magnetic separation and flotation method at least 4-stage treatment.