Achieving Over 95% Non-Ferrous Metal Recovery with Eddy Current Separation Technology

Description of Eddy Current Separation
Recovering non-ferrous metals such as copper and aluminum from mixed waste streams has historically been a complex and labor-intensive process. The eddy current separator addresses this challenge through a reliable, fully automated system based on high-frequency magnetic field technology, delivering exceptional recovery rates with minimal manual intervention.

Core Technology

As mixed materials travel over a rotating high-frequency magnetic rotor, eddy currents are induced within conductive non-ferrous metals. These currents immediately generate an opposing magnetic field, producing a repulsive Lorentz force. This force physically ejects the non-ferrous metals forward along the conveyor direction, while non-conductive materials like plastic, glass, and rubber drop unaffected into separate collection zones.

Typical Applications

The equipment’s versatility makes it suitable for numerous recycling scenarios:

• Ferrous Scrap Processing and Automotive Shredder Residue: Extracting valuable copper and aluminum from shredded steel and dismantled vehicle components.

• E-Waste Recycling and Circuit Board Recovery: Recovering precious metals from electronic scrap and household appliance parts.

• Waste Plastic Profile and Recycled Glass Cleaning: Removing metal impurities such as aluminum alloys and copper fragments from plastic window/door profiles and glass cullet.

• Municipal Solid Waste and Papermaking Residue Treatment: Sorting recyclable metals from incineration slag, paper residues, and solid recovered fuel (SRF).

Key Advantages

The eddy current separator consistently achieves sorting efficiencies exceeding 95% for non-ferrous metal particles typically sized 2 millimeters or larger. The system is designed for continuous, automated operation, seamlessly integrating with vibrating feeders and conveyor belts. A critical operational requirement is the upstream removal of ferrous metals using a strong magnetic separator. This essential step prevents iron debris from adhering to the high-speed magnetic rotor, thereby avoiding equipment damage, reducing maintenance costs, and ensuring long-term operational stability.

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