Mining Tyres for Quality Recyclates

06 January 2012

Back in 2011 Danish recycling equipment manufacturer, Eldan Recycling was contacted by a new customer, who had been searching for a solution to process mining tyres, the solution the company found has proved popular.

According to the company, the solution it found to its customer's needs was to combine a heavy duty demolition shear, the Eldan Heavy Duty Super Chopper, a powerful overband magnet and a granulation and separation plant.

The company said that it performed a test run of its system in the Autumn of 2011, successfully demonstrating the plant's ability to process mining tyres of typically three to four metres in diameter and weighing some four to six tonnes.

The mining tyres are first handled and pre-cut by a heavy duty demolition shear into pieces which fit the in-feed of the Eldan Heavy Duty Super Chopper. This machine is specially designed to process voluminous and tough waste.

In the Heavy Duty Super Chopper, the big pieces of mining tyre are processed into tyre shreds, and free steel wire is liberated and removed from the shreds by a powerful Overband Magnet.The tyre shreds are further processed in its granulation and separation plant.

The company added that since the mining tyre recycling system is combined with its standard tyre recycling systems, the output can be decided according to the customer's specific needs of output granulate size and quality.

The typical rubber granulate purity in the standard systems is up to 99.9% free of liberated steel and textile. However, by adding a quality upgrading system the company claimed that it is possible to produce "black gold" - which is rubber powder up to 99,99% free of liberated steel and textile, and 100% free of metals, glass and stones.

In addition, the company said that it is possible for the liberated steel wire to be further cleaned into a steel fraction which is 99% free from foreign material, as textile and rubber, and has a heavy weight density of +700 kg/m3.

"Since this first test run, word has spread, and we have received many quote requests from interested customers," commented Bjorn Laursen, product manager for tyre recycling at Eldan Recycling.


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