The eddy current non-ferrous metal separator is a machine used in recycling lines to separate non-ferrous metals (such as aluminum, copper, and brass) from the rest of the materials. It offers high performance with a working surface of 500 x 1950 mm and a power of 5.5 kW . It is designed to operate with non-ferrous metal particles ranging in size from 1 mm to 300 mm , making it very versatile in various recycling sectors.

Appearance and components

Visually, the separator appears to be a robust machine, typically equipped with a conveyor belt onto which the material to be treated is placed. The heart of the machine is the high-speed magnetic rotor mounted inside the belt roller. When the rotor rotates rapidly, it generates a variable magnetic field that induces eddy currents in the non-ferrous metals, repelling them from the material flow thanks to the resulting force.

Mechanical characteristics

The machine is built with a durable frame to withstand industrial wear and tear, and has low operating costs and limited maintenance requirements . One of its distinctive features is the ability to separate metals with different electrical conductivity and density characteristics, allowing it to handle metals of varying shapes, masses, and dimensions, such as aluminum and copper. The machine operates continuously thanks to the precision of the magnetic field , ensuring high efficiency.

Procedure for use

Using an eddy current separator is simple: the mixed material is conveyed by the belt, and as it passes over the magnetic rotor, the non-ferrous metals are diverted from the material flow and collected separately. The belt and rotor speed can be adjusted based on the type of material being processed and the conductivity of the metals being separated.

Sectors of use

This type of separator is widely used in the recycling of municipal solid waste (MSW) , in the treatment of electronic scrap (WEEE) , and in the management of incinerator ash (IBA) . Other fields of application include the refining of aluminum scrap and the separation of non-ferrous metals from glass or wood waste .

Maintenance and evaluation of used vehicles

Separators require minimal maintenance, including cleaning the magnets and periodically checking the moving parts. When evaluating a used model, it's important to check the condition of the permanent magnets and the rotor rotation speed. The conveyor belts must also be in good condition to ensure optimal efficiency. If properly maintained, this machine can be an excellent investment, offering reliability and lower costs compared to purchasing new machines.

Mathematical formulas and usage parameters

To optimize the separator's operation, the rotor rotation frequency and belt speed must be adapted to the size and mass of the non-ferrous metals to be separated. The basic formula for calculating the optimal separation speed is based on Faraday's law of electromagnetic induction : V=B⋅L⋅fV = B \cdot L \cdot f $V$ $=$ $B$ $\cdot$ $L$ $\cdot$ $f$ where:

• VV $V$ is the electromotive force,
• BB $B$ the magnetic field,
• LL $L$ the length of the ribbon,
• ff $f$ the rotation frequency.

Conclusion

Purchasing a used eddy current separator is an economical and practical choice for those seeking a reliable and well-established waste treatment solution. With low operating costs and a long lifespan, it's an excellent option for recycling companies