The average lifetime of an artificial turf system is approximately 12 to 15 years (wikipedia). After that, it can be removed, and the recyclables it contains (rubber, sand, plastic) can be recovered.
A particular challenge in the treatment of old turf waste lies in the separation process, because the raw material has similar grain sizes. Moreover it tends to stick and forms composites.
Using a flip-flop screen makes it possible to loosen the shredded mixture of materials (rubber, sand, plastic) and to separate it from the plastic fibers in the initial step.
The second step involves the separation of the remaining components (rubber and sand). This is achieved by using an air sorting table. The function of the IFE-SORT is based on a combination of vibration and air technology. Vibration conveys the portion consisting of heavy sand particles upwards, while the portion consisting of lighter rubber particles is kept hovering and conveyed downwards by introducing air. The very fine sand particles passing through the air insert of the sorting table can also be extracted as a separate fraction.
Implementing a multi-stage separation process made it possible to successfully fractionate the shredded artificial turf material provided by the customer (blades of plastic grass, rubber granulate and sand of various grain sizes) into separate material classes.
Further information on the IFE machine solutions for the waste processing industry...