PTMS magnetic separator The magnetic field can be divided into uniform magnetic field and non-uniform magnetic field. The degree of non-uniformity of the magnetic field is expressed by the magnetic field gradient. The magnetic field gradient is the change rate of the magnetic field intensity along the space, that is, the change amount of the magnetic field intensity per unit length. The greater the magnetic field gradient, the greater the degree of non-uniformity of the magnetic field, that is, the greater the change rate of the magnetic field intensity along the space.
The size of the magnetic force received by the magnetic particle is proportional to the product of the magnetic field strength and the magnetic field gradient. If the magnetic field gradient is equal to zero (no matter how high the magnetic field strength is, the magnetic field gradient is equal to zero). The magnetic force received by the magnetic particles is zero, and magnetic separation can not be carried out. Therefore, PTMS magnetic separator mostly uses heterogeneous magnetic fields. The working gap is too large, the magnetic force near the bottom plate is small, the concentrate grade is higher, but the tailings grade is increased, and the recovery rate is reduced.
The working gap is small, the PTMS magnetic separator near the bottom plate is large, the tailings loss is small, the recovery rate is high, and the concentrate grade will not be reduced. magnetic separators working gap is too small, one is to affect the equipment processing capacity; Second, the flow rate of the pulp in the sorting space is greatly accelerated, and the magnetic ore particles will be taken to the tailings, increasing the metal loss in the tailings, and even producing a "full tank" phenomenon because the tailings cannot be discharged.
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