Description
The structures of magnetic separator
The magnetic separator is mainly composed of cylinder, magnetic
field and cell body. The cylinder is made of rolled stainless steel
plate, and there is a layer of wear-resisting material coated into
the cylinder’s surface, such as rubber belt, a layer of fine copper
line or wear-resisting rubber. The magnetic field is a place where
magnetic separator produces magnetism. Every polarity is composed
of strontium ferrite permanent magnetic pieces and fixed magnetic
guide plate with brass screw passing through the center holes of
magnetic patches. The magnetic guild plate is fixed on the
cylinder’s axle, and magnetic field is not rotary.
The operating principle of permanent magnetic drum separator
The ore pulp flows into the cell body of magnetic separator through
feeding box. In the function of feeding ore shower pipe, the ore
flows into the coarse separating field in a loose state. The
magnetic mineral grain is absorbed onto the cylinder’s surface in
the function of magnetic field force and moves upward along with
cylinder. In the process of movement, because the polarity in the
magnetic field replace along the radial direction, the chained
magnetic ore grain is stirred. In the process of stir, the gangue
contained into magnetic ore grain is separated, which helps to
improve the quality of magnetic products. The magnetic ore grain
leaves magnetic field along with cylinder, and magnetic force
greatly decreases. Then it is flowed into concentrate slot in the
function of wash water. The non-magnetic ore grain and weak
magnetic ore grain flows from tailings hole of base plate to
tailings pipe. Because the tailing ore flows through scavenging
field where there is high magnetic field, the magnetic particle
which can’t be separated magnetically by cylinder in the coarse
separating field can be recovered again, improving metal recovery
ratio. The mineral pulp flows into separator constantly, and
tailings ore and concentrating ore discharge, which forms
continuous separating process.
The features of semi-reflux permanent magnetic drum separator
The feeding ore pulp of magnetic separator flows into the
separating field in the above of cell body in a loose and
suspending state. The pulp’s moving direction is basically same
with the direction of magnetic field force. The ore grain can reach
to cylinder’s surface which has a high magnetic force. Moreover,
the tailings ore discharge from the tailings pipe of base plate, so
the height of spillway chute can keep the same level with pulp. the
above two features decides that semi-reflux permanent magnetic drum
separator can get higher concentrated ore quality and metal
recovery, thus it is widely applied to handle coarse separation and
concentrated separation in the strong magnetic mines.
