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FOCUS - Rubber Granulate

14-09-2018 10:50
by Rebaudet

 

From collection to granulation 

END OF LIFE TYRES MANAGEMENT SYSTEM

Tyres are one of the most difficult and abrasive waste to handle. With an average weight of 7,89 kg for cars and 53,99 kg for truck, Europe faced in 2016 more than 3.5 Million tons* of used tyres and End of Life Tyre - ELT (*ETMRA statistic). There are today within the EU three different models in order to manage ELT:

  1. Producer responsibility
  2. Liberal system (Free market)
  3. Tax system (under government responsibility with a tax financing)

In order to balance environmental duty and economic limitation, European member states, where Producer Responsibility was the chosen process, created Public Limited Companies to collect and recover the quantities of used tyres brought on each market.

These companies like Norsk Dekkretur, SDAB or Suomen Rengaskierrätys aim to :

- Collect used tyres from owners and distributors
- Sort and regroup the different tyres
- Send then to different processing.

 

These operations are financed by Tyres producers like :

Bridgestone
Continental
Dunlop
Good Year
Hankook
Kleber
Michelin
Nokian Tyres
Pirelli

They provide financial contribution proportional to their sales on each market. At European level, ETRma is the voice of tyre and rubber goods producers to various European institutions.

THE NORDIC COUNTRIES, PIONEERS OF PRODUCER RESPONSABILITY

Nordic countries were already recycling more than 90% of tyres in the early 2000 when the average rate in Europe was around 50%. Since then, and the EU landfill Directive (1999/31/EC) implementation, Europe raised above the rest of the world recovery reaching more than 95% including re-use and export.

If not reused, the tyres are either shred or transformed in granulates, chips or powder.

GRANULATION, A KEY PROCESS FOR ELT

In 2016, 1.785.250 t* of ELT were recycled in Europe. It represents 58,4% of all European ELT recovery.

Nearly 80%* of all European recycled ELT were sent to granulation in order to extract steel wires, textile and rubber.

" Our new granulation plant produces granulate for artificial turf and silent asphalt in Sweden and Norway. Previously, the material had to be imported from Central Europe." Anders Lindblom, Ragn-Sells AB

Tyre recycling is divided in three main steps:

  1. Volume reduction
  2. Steel extraction
  3. Granulation and sorting

Depending of its size, the rubber granulate can be re-used in multiple applications such as:

- Anti-vibration
- Shock-absorbing- mats
- Rail filler block system
- Sport surface
- Synthetic turf
- Urban playground
- Molded objects
- Equestrian floors
- Car parts
- Wheels
- Concrete
- Urban funiture
- Acoustic screens
- Water filtration

 

Tyre recycling futur

ROAD TO SUSTAINABILITY

MTB's tyre recycling system allows to produce clean crumb rubber. The volume reduction can be achieved with or without rotating shear to reach grain size of 0 to 4 mm. Grain refining bring the size below 1,5 mm.

MTB has developed a proven concept of mono rotor pre-shredder (BDD) with low maintenance cost. The shaft is optimal for shredding car, truck and civil engineering tyres. In the following step, MTB reinforced pre-shredder (BDR) is used to shred the tyres pieces. The rubber, foam and rest of steel are liberated thanks to strong Granulators (BAT) and Fine Granulator (BPC).

The final size of the crumb rubber is adjusted thanks to the tumbler screen (TSI) and provide rubber granulates with a purity exceeding 99,5%.

 

TYRE RECYCLING IN THE CIRCULAR ECONOMY

In order to keep innovating and stay a worldwide reference in tyre processing lines, MTB has been working hand in hand with Mr. Leo van Dongen for more than a decade. The mission of his company, CEYES, is to revolutionize tyre recycling in the circular economy making rubber Circular for at least 100 years.

MTB's BOX system including:

  • GATOR BOX
    a two-rotor grinder in a 20-foot container that can be used both as a rotary shear and a shredder.
  • TIRE BOX
    a turnkey tyre recycling line within containers.
  • IRON BOX
    a 20-foot container to clean the polluted steel wires to a final purity higher than 96%. Bring a whole new approach, small-scale industries in the Circular Economy.

 

Look at MTB customer's experience

MTB - Tyre line in Sueden

Read more about RAGN SELL's granulated rubber

Rubber Granulate - ragnsellstyrerecycling.com
Our rubber granulate is a high quality product made from recycled tyres.

 

Publication regarding development of systems and solutions that have improved tyre recycling in Nordic countries

Find out more about Norsk Dekkretur, a non profit ELT management company in Norway.

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Contact

Quartier de la Gare
38460 Trept - FRANCE
Tel. +33 474 928 768
Fax +33 474 929 346

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