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What factors affect the iron removal effect of a magnetic separator

2025-08-28

Let me introduce to you what factors affect the iron removal effect of the Magnetic Separator. The factors that affect the iron removal effect include: raw material state (powder or slurry), particle size, temperature, average flow rate, instantaneous flow rate, fluidity, magnetic field, iron content, target iron content, chemical properties, installation space, iron unloading method, upstream and downstream equipment, etc. Next, we mainly discuss the influence of temperature and magnetic field on the iron removal of the magnetic separator.

The influence of the temperature of the magnetic separator on the iron removal effect

The magnetic field strength is directly proportional to the current, and the current is directly proportional to the resistance. The resistance of a current-carrying coil increases with the rise in temperature. Therefore, as the energizing time extends, the temperature of the current-carrying coil keeps rising, and its resistance increases accordingly. Correspondingly, the current will decrease, leading to a weakening of the magnetic field strength until a dynamic equilibrium is reached. Therefore, the cooling and heat dissipation effect of the electromagnet is an important factor in maintaining its field strength from weakening sharply. The selection of magnetic separators with good heat dissipation effect and the alternating use of dual dust collectors can achieve the purpose of timely cooling.

The influence of iron parts near the magnetic field of the magnetic separator on the iron removal effect

The iron removal process by a magnetic separator is a complex physical procedure. Once the iron parts around the magnetic separator are magnetized, the iron removal effect will be affected. Under and around the magnetic separator, there are idler groups and other steel components. The additional magnetic fields formed by magnetizing iron parts of different shapes are very complex, among which the magnetic field perpendicular to the idler direction has a greater impact on the iron parts. The value of the magnetic induction intensity is not large. As the distance from the idler increases, the magnetic induction intensity decreases rapidly within the range of 0 to 40mm. At this time, the suspension height of the Electromagnetic Iron Remover should be adjusted. In this way, the iron parts around the electromagnetic iron remover, due to their distance from the iron remover, will generate a weak magnetic field after being magnetized. At the same time, the additional magnetic field is also relatively far from the iron parts, so its negative impact on the iron remover is much smaller.

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