Magnetic Separator was used

When materials go through the permanent magnetic drum, the magnetic particles are absorbed to the drum surface and discharged through the magnetic product area. Meanwhle, the non-magnetic particles are ejected from the drum surface under the influence of the centrifugal force and gravitation and discharged through the non-magnetic product area.Strong Induction Intensity .The equipment has high magnetic induction intensity to attract the ore with size up to 350mm, and can be applied with various model belts according to the customers' demands. It is mainly used at the preseparation stage to rejecting excess gangues. High performance magnet design to suit your application to provide the most effective and efficient method of metal recovery. Magnetic separation is a process in which magnetically susceptible material is extracted from a mixture using a magnetic force. This separation technique can be useful in mining iron as it is attracted to a magnet. In mines where wolframite was mixed with cassiterite, such as South Crofty and East Pool mine in Cornwall or with bismuth such as at the Shepherd and Murphy mine in Moina, Tasmania, magnetic separation was used to separate the ores. At these mines a device called a Wetherill's Magnetic Separator was used. In this machine the raw ore, after calcination was fed onto a moving belt which passed underneath two pairs of electromagnets under which further belts ran at right angles to the feed belt. The first pair of electromagnets was weakly magnetised and served to draw off any iron ore present. The second pair were strongly magnetised and attracted the wolframite, which is weakly magnetic. These machines were capable of treating 10 tons of ore a day.This process of separating magnetic substances from the non-magnetic substances in a mixture with the help of a magnet is called magnetic separation.