Difference between revisions of "Magnetic Separators"

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Machines used for '''Magnetic separation'''. This 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  separation is one of the most reliable ways to remove unwanted ferrous  metals during the processing of raw materials. From recycling plants to  food and pharmaceutical manufacturing, we have the perfect industrial  magnet to assist your operation.

==Industry==

*Aggregate & Mining

==Working Principle==

All materials possess magnetic properties. Substances that have a  greater permeability than air are classified as paramagnetic; those with  a lower permeability are called diamagnetic. Paramagnetic materials are  attracted to a magnet; diamagnetic substances are repelled. Very  strongly paramagnetic materials can be separated from weakly or  nonmagnetic materials by the use of low-intensity magnetic separators.  Minerals such as hematite, limonite, and garnet are weakly magnetic and  can be separated from nonmagnetics by the use of high-intensity  separators.

There is a magnetic field around the magnetic materials. Magnetic field  can be divided into uniform magnetic field and non-uniform magnetic  field. The strength and direction of various points in uniform magnetic  field are in the same size; and the strength and direction in  non-uniform magnetic field are always changing. Mineral particles in a  uniform magnetic field only by the role of the torque, its long axis  parallel to the direction of magnetic field; in the non-uniform magnetic  field, the mineral particles not only by the role of the torque, but  also by the magnetic force, resulting in mineral particles both rotation  and moving to the direction of magnetic field gradient increasing, and  being sucked in the magnet surface in the last. Such mineral particles  with different magnetic can be separation. Therefore, the magnetic  selection is a method based on the differences of permeability between  minerals to achieve separation in the non-uniform magnetic field.