Feed particle size:0-3mm Processing capacity:10-280t/h

Applicable Materials:Magnetite, pyrrhotite, roasted ore, ilmenite, hematite, limonite, siderite, wolframite, tantalum-niobium ore, red mud, quartz, fluorite, feldspar, etc.

Application Scope:Iron Ore Beneficiation Plant

Introduction to Magnetic Separator

The magnetic separator is a wet magnetic separation device suitable for materials with a particle size below 3mm, such as magnetite, pyrrhotite, roasted ore, and ilmenite. It is also used for iron removal operations in coal, non-metallic ores, building materials, and other materials. The magnetic system of the separator is composed of high-quality ferrite materials or a combination of rare earth magnetic steel, with an average magnetic induction intensity of 100–600 mT on the drum surface. Depending on user requirements, various types of magnetic separators with different surface magnetic intensities, such as concurrent, semi-countercurrent, and countercurrent types, can be provided. This equipment features a simple structure, high processing capacity, convenient operation, and easy maintenance.

Working Principle of Magnetic Separator

After the slurry flows into the tank through the feed box, the ore particles are loosened by the water flow from the feed spray pipe and enter the feeding zone of the tank. Under the action of the magnetic field, magnetic ore particles undergo magnetic aggregation to form "magnetic clusters" or "magnetic chains." These "magnetic clusters" or "magnetic chains" are subjected to magnetic forces in the slurry, moving toward the magnetic poles and being adsorbed onto the drum. Since the polarity of the magnetic poles alternates along the rotation direction of the drum and remains fixed during operation, the "magnetic clusters" or "magnetic chains" experience magnetic stirring as the drum rotates due to the alternating poles. Non-magnetic minerals such as gangue, which are trapped within the "magnetic clusters" or "magnetic chains," are dislodged during this tumbling process. Ultimately, the "magnetic clusters" or "magnetic chains" adsorbed on the drum surface constitute the concentrate. As the concentrate rotates with the drum to the point where the magnetic force is weakest at the edge of the magnetic system, it is discharged into the concentrate tank under the flushing water flow from the discharge spray pipe. If a fully magnetic magnetic roller is used, the discharge is carried out by a brush roller. Non-magnetic or weakly magnetic minerals remain in the slurry and are discharged out of the tank along with the slurry, forming the tailings.

Performance Characteristics of Magnetic Separator

1. A dynamic magnetic system design is adopted, allowing the ore material to slide, shift, and tumble on the surface of the drum without sticking. This facilitates material sorting, with the initial grade capable of being increased by 1–4 times, and the grade after a single pass of concentration reaching over 60%.

2. Good purification and sorting effect, achieving high mineral grade after magnetic separation while minimizing tailings residue.

3. For concentrate discharge, either high-pressure water flushing or brush discharge can be used to achieve effective removal of strongly magnetic minerals.

4. The size of the equipment can be customized according to customer requirements, and the strength of the magnetic field of the magnetic roller in the magnetic separator can also be customized.

5. The movable trough body allows for convenient adjustment of the discharge gap between the magnetic drum and the trough body based on changes in the material, thereby adjusting the concentrate grade and equipment processing capacity.

6. The equipment is well-structured, with each component designed to be as good as possible, ensuring excellent quality for sustained operation, low energy consumption, and a low failure rate.

Henan Fuland Heavy Industry produces a wide range of magnetic separator models at affordable prices, with guaranteed equipment quality. These products meet the needs of all customers, helping them achieve higher efficiency. Supported by clients both domestically and internationally, they are well worth considering for purchase.