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Three Gists can Guide You Choosing Dry Magnetic Separator

 
02-Jul-2012

 

The dry type magnetic separator is commonly used iron ore and manganese ore beneficiation equipment. It is the mainstream strong magnet separator, which is specialized in processing dry magnetic minerals. The wet type magnetic separator use liquid diluents to improve separation efficiency. The dry type magnetic separator requires that the material must be dry, and can move freely between the particles. Or it will affect the separation result, and even cannot separate materials.

Dry magnetic separator is applied to the wet magnetic separation of magnetite, pyrrhotite, roasted ore, ilmenite and other materials with a particle size below 3mm, and it also can be used for the deironing work of coal, non-metallic minerals, building materials and other materials. hongxing mine machinery is specialized in manufacturing dry magnetic separation machine, and the dry magnetic separator of hongxing has the characteristics of the cylinder surface with deep magnetic field strength, large envelope angle of the magnetic system, stable magnetic field intensity, transmission system stable and reliable and significantly improving the ore feeding grade. We will share the three indicators influencing the selection of dry magnetic separator.

1) The thickness of the feeding layer: it refers to the grain size of the processing raw material and the content of magnetic particles. The feeding layer is thicker when processing general coarse ore, the thickness of which is about 1.5 times of the maximum particle.

2) The strength of the magnetic field and its working gap: it is closely related with the particle size of processed material, magnetic level and operational requirements, when the working gap is certain, the magnetic field strength between the magnetic poles depends on the coil turns which is not adjustable. The magnetic field strength can be adjusted only by changing the excitation current. When processing materials of strong magnetism or fine work, it should use weak magnetic field; and when processing materials of weak magnetism or coarse work, it should use strong magnetic field. To a service-oriented brand integrity,As the professional manufacturer of complete sets of mining machinery, like cement making plant, Henan Hongxing is always doing the best in products and service.bucket sand washer:http://www.china-mills.com/p9.html

3) The speed of feeding ore: the feeding speed determines by the speed of vibrating trough ( or belt ). Its speed determines by the mechanical force the mineral particles born staying in the magnetic field, the higher the velocity, the shorter the mineral particles staying in the magnetic field. The mechanical force on the mineral particles generally includes gravity and inertia force, among which the gravity is a constant, the inertial force is proportional to the square of speed. The magnetic force of weak magnetic mineral particles in a magnetic field is near to the gravity, therefore, the speed exceeding a certain limit dues to the increasing of inertia force, which will cause the insufficient adsorption of magnetic force and recovery decreasing. Therefore, when separating weak magnetic minerals, the feeding speed should lower.

The concentrate moves to the end of magnetic system where the magnetism is weakest along with the revolving cylinder, and is discharged into concentrate tank by the current ejected by the discharging-ore pipe. The non-magnetic or weak magnetic remained are discharged along with the mineral slurry, and they are gangue.

 
Category : Professional
 
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