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magnetic separation eqipment

magnetic drum separator magnetic separation equipment

magnetic drum separator magnetic separation equipment

Magnetic Drum Separator: Dry drum separators have been developed mainly for dry separation of ferromagnetic ores with particle sizes finer than 20 mm. In addition to this conventional application, the dry drum separator has found a wide range of other applications such as:

The magnetic drum assembly is contained in a dustproof housing with an opening at the bottom for the discharge of both magnetic and non-magnetic products. These products are separated by means of a splitter placed under the drum inside of the housing. The whole unit can be dust vented by connecting the plant exhaust system to the outlet provided on the housing.

Parts of the housing exposed to wear are normally protected by replaceable rubber or steel wear plates. Inspection of the drum and housing is made through inspection hatches. The housing is easily dismantled for erection and maintenance.

The feed arrangement is dependant upon local conditions. For run-of-mine fines, a belt feeder is recommended. For other materials, a vibrating feeder, (or in the case of dusty material, completely covered drum feeders) can be used. The housing is equipped with a standard replaceable feed chute.

To meet the various requirements the separators are manufactured with two different drum diameters; i.e. 916 and 1200 mm and drum lengths from 300 mm to 3000 mm in. The separator design allows for an easy combination of drums into double- or triple- drum units.

Magnetic drum separators have a wide range of applications. They are used in free-fall chutes or after a vibratory chute for powders (even fine powders), granulates, fibers and coarser product streams (non-sticky). They continuously and fully automatically separate ferromagnetic (Fe) particles, such as iron and steel.

If the material is supplied via a vibratory chute, it is possible to separate weakly magnetic particles, such as particles from machined stainless steel, and even paramagnetic particles. Due to the continuous cleaning, the drum magnet is very suitable for product flows with heavy magnetic particle contamination.

Various classification schemes exist by which magnetic separators can be subdivided into categories. The most illustrative classification is according to the magnitude of the magnetic field and its gradient.

As has been shown above, there are numerous types of magnetic separators, each one being suitable for only a limited range of applications. The choice is influenced by a variety of factors, and the successful operation of a separator depends, to a great extent, on practical experience. The particle size and magnetic properties of the material to be treated are the most important variables that determine the selection of the magnetic separation technique and the general guidelines of the process selection based on these properties are shown in Figure.

Magnetic drum separators have a wide range of applications. They are used in free-fall chutes or after a vibratory chute for powders (even fine powders), granulates, fibers and coarser product streams (non-sticky). They continuously and fully automatically separate ferromagnetic (Fe) particles, such as iron and steel.

Magnetic separation is a process in which magnetically susceptible material is extracted from a mixture using a magnetic force. This separation technique can be useful in mining iron as it is attracted to a magnet.

Magnetic filtration is the most effective means of removing problem ferrous particles from industrial fluids such as coolants, lubricants and wash solutions. All the benefits of Magnetic filters are based on their ability to remove 100% of ferrous particles including sub-micron particles from the process.

This method of separation is used when either the ore particles or the gangue associated with it possess magnetic properties. For example, chromite Fe(CrO2)2 being magnetic can be separated from the non-magnetic silicious gangue by magnetic separation.

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