2012年4月25日星期三

Two Major Points in Using Dry Magnetic Separator


The dry magnetic separator for dry magnetic separation of magnetic separation machinery, as opposed to wet magnetic separator sorting mineral liquid as diluents to improve the separation efficiency, dry magnetic separator is required to bedry mineral separation between the particles can move freely, into independent free state, otherwise it will affect the magnetic effect, and may even cause the consequences of not sorting.
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 classifiers, Henan Hongxing is always doing the best in products and service.
Magnetic system is consisted of several magnetic poles, and connected by saddle magnetic guide plate. Magnetic guide plate is made by low-carbon steel and pure iron, which not only plays the role of supporting magnetic system, but also provides excellent magnetic path. The magnetic flux that sends through every magnetic pole back face is mostly flowing in magnetic guide plate. Magnetic pole splices on magnetic guide pate, magnet center with a hole is fixed on magnetic guide plate by using copper bolts. The arrangement for magnetic pole is alternated along with circle polarity, the advantage of this arrangement is magnetic stirring function (magnetic flip) can be produced when magnetic ore grain passing through magnetic field in the process of screening, which is very good for improving fine ore grade. The whole magnetic system that composed of magnetic guide plate together with magnetic pole, two spoke iron reinforcements that connect with magnetic guide plate, all of which are fixed on the axis of magnetic separator.

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