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The Dressing Concept of Magnetic Separator

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Iron ore beneficiation plant is used to beneficiate a wide variety of industrial iron ores. In this application the relatively large volumes of nonmagnetics are usually the commercial products. The amount of magnetic material removed is quite small, and dry separation is the general rule.

This separating machine is surrounded in a uniform magnetic field produced by the iron-wrapped solenoid. By means of installing some magnetism gathering media such as steel gross and mild steel expanded sheets and magnetization, it will produce towards the surface of the radial direction some magnetic fields with different height which is what we often called High Gradient Magnetic field. This machine is able to produce strong magnetic field force on the condition that the background field intensity is not very strong. In such a field, the paramagnetism material will be influenced by a gravitational interaction in proportion with the product of the additional magnetic field and the magnetic field gradient. Making use of the unique characteristics of this field with different high gradient, we are able to separate some fine material with extremely weak twist magnetic property that is difficult for the general separators to split, and what is more, we are able to reduce significantly the lower limit of the separation granularity which can be decreased to 1μm and at the same time improve the separation index.

This high gradient magnetic cobber can be divided into electromagnetism and permanent magnet these two types and our country mainly manufactures separators with electromagnetism. This high gradient magnetic cobber can be used for separating fine mineral materials with extremely weak magnetic property. In recent years, this machine has outstanding performance in the industrial sewage deposal industry. When it is used for disposing the sewage, the sewage flow past the magnetic media like steel gross and those particles with magnetic property will be absorb on the steel gross, and in this way, the purpose of sewage cleansing will be reached and this machine can also be called high gradient magnetic filter. To a service-oriented brand integrity,As the professional manufacturer of complete sets of mining machinery, like spiral separator, Henan Hongxing is always doing the best in products and service.primary crushers:

The working principle of Magnetic Separator: The mineral slurry, which consists of loosened particles, is fed into the cell through a box feeder. The liquid flows through the system and the magnetic field will cause the magnetic particles to swarm together forming a magnetic cluster or chain. This magnetic cluster or chain is attracted to the cylinder due to the magnetic force. The revolution of the cylinder around the magnetic field causes the non-magnetic particles to fall off while the magnetic ones remain attached. The magnetic material moves along the cylinder to the end of the point where the magnetic force is weakest at the end of the magnetic system. At this end, the magnetic material is discharged into the concentrate tank by the current produced by the discharging-ore pipe. The rest of the non magnetic material as well as those with low levels of magnetism are discharged together with the slurry.


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  • Posted On August 17, 2012
  • Published articles 10

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