The CTS series magnetic separator, officially known as the CTS type wet permanent magnet drum magnetic separator, is a weak magnetic field wet magnetic separation device mainly used for the wet separation of strongly magnetic minerals such as magnetite, roasted ore, and ilmenite. Its most significant feature is its co-current trough design, where the slurry feed direction is consistent with the drum's rotation direction. The slurry directly enters the magnetic field zone, resulting in a smooth flow and reducing the risk of clogging. This makes it particularly suitable for the pre-selection and refining of coarse-grained minerals. This model features a simple structure, reliable operation, and convenient maintenance, and has been widely used in numerous iron mines both domestically and internationally.
Working Principle
CTS magnetic separator separate minerals based on their magnetic differences. The specific process is as follows:
1. Pulp Intake: The slurry enters the magnetic field zone below the cylinder directly from the top of the tank through the feed box.
2. Magnetic Adsorption: Under the influence of a strong magnetic field, magnetic minerals (such as magnetite) are adsorbed onto the surface of the rotating cylinder.
3. Cylinder Rotation: Magnetic minerals rotate with the cylinder, while non-magnetic minerals are discharged from the gap in the bottom plate below the cylinder, becoming tailings.
4. Concentrate Discharge: When magnetic minerals rotate to a weak magnetic field zone, they detach from the cylinder surface under the action of flushing water and enter the concentrate tank.
5. Continuous Operation: The entire process allows for continuous feeding and discharging, suitable for large-scale production.
Due to the co-current structure, the slurry flow direction is consistent with the magnetic mineral movement direction, resulting in smooth material flow and a large processing capacity. However, the concentrate grade is relatively lower than that of semi-countercurrent (CTB) magnetic separator.
Product Structure
The CTS series magnetic separator mainly consists of the following six parts:
- Cylinder: Constructed from 2–3mm thick stainless steel sheet, welded together, with a wear-resistant rubber layer (approximately 4mm thick) covering the surface, providing a service life of 2–3 years.
- Magnetic System: Utilizes a composite of ferrite or neodymium iron boron rare earth permanent magnet materials, installed in an open configuration inside the cylinder, with a magnetic field strength ranging from 100–600 mT (1000–6000 Gauss).
- Tank (Bottom Box): A co-current structure; the working area is made of stainless steel and equipped with a water spray pipe to regulate slurry concentration.
- Transmission Device: A motor drives the cylinder to rotate via a reducer, with a speed typically 10–40 r/min, adjustable.
- Support and Frame: Supports the entire machine structure, mostly welded from carbon steel, ensuring stability and durability.
- Magnetic System Adjustment Mechanism: The magnetic declination angle (generally 5°–25°) can be adjusted via cranks and pull rods to accommodate different ore properties.
Product Advantages
1. High Processing Capacity
The co-current flow design allows for high slurry throughput, suitable for efficient separation of coarse-grained minerals (≤6mm). Processing capacities can reach 1–100 t/h or more, making it suitable for large-scale beneficiation plants.
2. Compact Structure and Stable Operation
The tank design is simple, without complex flow guide structures, resulting in a relatively small equipment size and low installation space requirements. It is also less prone to material blockage and leakage during operation.
3. Energy-Saving and Power-Free Operation
Utilizing a permanent magnet system, no excitation current is required, resulting in zero operating energy consumption. A single unit can save over 100,000 kWh of electricity annually, significantly reducing operating costs.
4. Easy Maintenance and Long Service Life
The tank body is made of non-magnetic stainless steel and lined with ultra-wear-resistant rubber, offering corrosion resistance and wear resistance, significantly extending its service life. The modular design allows for quick component replacement.
5. Adaptable to Various Working Conditions
Different specifications (such as CTS7518, CTS1024, etc.) can be customized according to mineral type, particle size, and processing capacity. Multiple units can be connected in series to improve overall beneficiation efficiency.
