How to ensure the effect of dry magnetic separator? - Halbach array

Adjust the distance between the magnetic roller and the distribution plate

The distance between the material distribution plate and the magnetic drum is an important parameter in the pre-selection process. The smaller the distance between the material distribution partitions, the poorer magnetite nuggets cannot be recovered, which reduces the utilization rate of ore resources; the material distribution partitions The larger the distance, the gangue minerals will not be separated better, and the grade of the grinding will decrease, which is not conducive to the efficiency of grinding. According to the properties of the ore and the distance between the distribution plate and the drum is adjusted, so that the gangue can be fully thrown out, and at the same time ensure the full recovery of magnetic products and the recovery rate of dry beneficiation concentrate.

Adjust the height of the distribution plate of the dry magnetic separator

The separation plate of the magnetic separator directly affects the separation effect of the magnetic separator. If the separation plate is too low, the extremely poor magnetite blocks cannot be recovered well, which reduces the utilization rate of ore resources; the separation plate If it is too high, the gangue minerals will not be completely thrown out, which will affect the separation effect of the dry magnetic separator. Adjust the height of the dry separation separating plate according to the specific conditions, so that the dry separation can not only ensure a certain ratio of tailings, but also enable the non-magnetic minerals to be thrown out better.

Increase the flat feeder, try to make the dry material layer thin and uniform

Generally speaking, the farther the magnetic separator is from the surface of the cylinder, the stronger the magnetic attenuation will be. If the material flow is too thick, the magnetic particles and non-magnetic particles will be mixed with each other, which will affect the separation effect of the ore. best distribution. It is required to increase the material layer leveling device before dry selection, and try to use the effective width of the belt to make the dry selection material layer thin and uniform, so as to ensure the dry selection effect.