Over time, however, we have noticed that the supply of granules of this size is much higher than the demand and sometimes the market value does not justify the investment in a plant of this type. For this reason, especially in some specific geographical areas, Forrec has activated projects aimed at obtaining a shredded rubber granule of reduced dimensions, usable as a high-efficiency fuel (given the high calorific value of rubber). Energy recovery from ELT-derived materials is mainly carried out in cement factories, whose high operating temperatures guarantee compliance with the emission limits and make it possible to make the most of the high calorific value of rubber, comparable to that of pet-coke.
The TX1600 Shredder
In the treatment of end-of-life tyres destined for the production of TDF (Tyre Derived Fuel), the most delicate phase is that of primary shredding. This treatment requires, in fact, that the output product has a well-defined dimensions and is not frayed. To meet the specific needs of this market segment, Forrec has developed the TX1600 shredder, which combines excellent performance, productivity and excellent ratio with production costs.
The TX1600 shredder was created with the aim of responding to the specific demands of the market, without neglecting productivity, which must never fall below 5 t/hour for the treatment to be economically sustainable.
The real innovation, however, is that the shredder is equipped with special "clean cut" blades to overcome the problem of fraying the steel wire contained in the rubber of the tyre. The product derived from shredding with this special double shaft shredder has such a quality that it is required in large quantities by cement factories as fuel, the so-called TDF "tyre derived fuel."
Forrec has already supplied a plant with the new technology to a customer in the United Arab Emirates who was looking for an effective solution for this specific need.
Although in many geographical areas the problem of tyre disposal still proves to be a difficult obstacle to overcome, Forrec has shown that solutions can be successfully found and applied.