Magnetic systems for the recycling industry

Given the volatility of commodity prices, which in most cases tend to increase, it is in many cases necessary to detect the presence of metals and to separate them, whether for purposes of purification or recovery of waste, metals, minerals or plastics.

Since 1987, BLS Magnet designs and manufactures industrial magnetic systems. As a leader in metal detection and separation technologies, BLS Magnet has developed a wide range of systems to meet the various needs of waste management and recycling industries.

Eddy current separators

The Eddy current separator is a very efficient magnetic system for separating non ferrous metals (such as aluminum, copper, brass, etc.) from other inert materials (glass, stone, wood, etc.).

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Eddy current separators

This system is the preferred solution for many sectors such as waste management and recycling. Coupled with standard magnetic separator, ferrous metals, including that of small size, can also be separated, thus delivering optimal quality of separation.

How the separator works

This system has a conveyor belt with a magnetic rotor at one end. This rotor, rotating very rapidly, generates a strong magnetic field. When the non-ferrous metal reaches the vicinity of the magnetic field, it is propelled to the outside of the machine, while the inert materials fall by gravity along the normal path in another container. Ferrous metals are themselves attracted by the strong magnetic field and unloaded below the separator, so as to be recovered.

Upon request, BLS Magnet can design a tailor-made separator that meets the specific requirements of your installation.

Magnetic overbelts

Magnetic overbelts can perform accurate and efficient separation of ferrous metals found in waste (glass, plastic, paper, wood, stone, coal, compost, etc..). These types of magnetic separators are widely used by many recyclers to increase the material value by making it free of impurities and also to protect the equipment against any damage.

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How the separator works

Depending on your installation, overbelt separators can be installed transversely or longitudinally above the conveyor. The ferrous objects are attracted by the built-in magnetic system of the separator, then carried away by the rubber belt to a dropping zone where they can be retrieved. The high level of accuracy and efficiency of separation is made possible thanks to the power and depth of the magnetic field generated by our separators, designed specifically to meet your specific needs. Several models are available with ferrite or neodymium permanent magnets.

Overbelt made for tire recycling

Recently introduced overbelt for tire recycling that can effectively separate ferrous particles present in shredded tires of cars and trucks. This system was developed in collaboration with one of the largest tire recyclers in Northern Italy.

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Tire recycling

The metal particles consist essentially of twisted iron wires which are usually difficult to separate from the rubber. As the wires clog with the rubber, it is usually almost impossible to achieve the desired separation quality as it is likely to omit some residues. Initially, the only, yet costly, solution was to install two or more separators (overbelts and or magnetic drums).

Innovative solution

This separator, which is specifically designed for the recycling of tires offers a simple solution in one step. Thanks to its innovative concept, this separator delivers a separation efficiency higher than up to three conventional magnetic systems..

Main advantages
- Increased separation quality in less time
- Higher purity of recovered iron and rubber
- Reduced investment (single separator) compared with the use of several separators
- Compact size
This special overbelt must be positioned above a specific vibrating conveyor. The purity of the recovered product is above 99%.

Magnetic plates

vailable in two versions with ferrite or neodymium permanent magnets, magnetic plates are used primarily as protective systems for machines and other production processes.

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Magnetic plates

Depending on the model (ferrite or neodymium), magnetic plates can eliminate iron objects and dust of various sizes.

With their simple design, these systems are highly adaptable to any type of existing installation. These magnetic separators are recommended where only a small amount of iron must be separated. These magnetic plates are typically installed above the conveyor belts but may also be positioned in direct contact with the product flow.

These magnetic plates must be cleaned manually.

Magnetic drum separators

Unlike magnetic pulleys that have a 360° magnetic surface, magnetic drums are equipped with a fixed magnetic system covering approximately two thirds of the cylinder which has a rotating shell.

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Magnetic drum separators

Iron particles are dragged to an unloading zone for recovery while waste falls by gravity.

Magnetic pulleys

Permanent magnet magnetic pulleys can remove large amounts of iron slag, of small and medium size.

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Magnetic pulleys

These separators are equipped with a 360° magnetic surface, so that they can be installed as the drive rollers at the top of the conveyor belts. The iron particles are automatically dragged to an unloading zone for recovery.

The magnetic field generated by these magnetic pulleys is very strong and extends to about 50/100 mm from the surface, which eliminates even very small metal objects covered with a thick layer of inert material (waste or others).

Main advantages
- Increased degree of iron removal
- Fine material purification
- Compact systems ideals for installations where conventional separators cannot be installed due to space limitations.

Applications

Since the early 1950s, the volume of waste (household, etc.) continues to grow at a rate that seems out of control. BLS Magnet provides the recycling industry, which has now become one of the pillars of sustainable development, with a wide range of systems designed for a variety of applications across many industries.