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. At these mines a device called a Wetherill’s Magnetic Separator was used. In this machine the raw ore, after calcination was fed onto a moving belt which passed underneath two pairs of electromagnets under which further belts ran at right angles to the feed belt. The first pair of electromagnets was weakly magnetised and served to draw off any iron ore present. The second pair were strongly magnetised and attracted the wolframite, which is weakly magnetic. These mining machines like rotary kiln were capable of treating 10 tons of ore a day.
less than 2 - 3 mm and the re-cleaning of the rare metal ore. The magnetic separator include tree types: single disc, double disc and three disc three. And in the actual application, the double disc is used more, so we will take the double disc magnetic separator for example.
Technology personnel of Henan hongxing mining machinery Co.,Ltd. told us that the body of the magnetic separator is composed by a' mountain ' shape electromagnet and a rotatable hanging inductive disc. The diameter of the disc is about 1/2 bigger than the width of the feeding mine belt, it adopts the worm wheel as the underdrive, which can adjust the polar distance between the adjustable disc and the electromagnet through the hand wheel.
Factors effecting the operation of the disc magnetic separator include: feeding thickness, magnetic field intensity, working gap, feeding speed and so on. Magnetic separator is suitable for wet magnetic separation of materials such as the magnetite, pyrrhotite, roasted ore, ilmenite and other materials of a particle size below 3mm, but also for the de-ironing of the coal, non-metallic minerals, building materials and other materials. To a service-oriented brand integrity,As the professional manufacturer of complete sets of mining machinery, like mobile crushers, Henan Hongxing is always doing the best in products and service.cement rotary kiln:http://www.hx-crushers.com/p116.html
The magnetic series of magnetic separator generally adopts the composite of high-quality ferrite material or rare earth magnets, and the average magnetic induction intensity of the barrel is 100 ~ 600mT. According to users' needs, it can provide separation of different intensities. The magnetic separator has the advantages of simple structure, large processing quantity, convenient operation, easy maintenance, etc.
Wet permanent magnetic drum magnetic separator is one of the commonly used separator in the iron ore beneficiation plant, which is suitable for separating strongly magnetic minerals. Wet permanent magnetic drum separator can be classified into parallel flow, counter flow, semi counterflow in accordance with the tank structure of the separator. There are many ways to classify the magnetic separator, according to the work condition,it can be divided into wet and dry; according to the magnetic source there are electromagnetic and permanent magnet type; according to the equipment structure there are the disc, roller type, flat type, ring type, inductive roller, etc.
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