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INTRODUCTION -
Tyres from motor vehicles are one of the largest sources of waste rubber. Tyres vary considerably in type of construction, materials employed & total weight. Table below shows the average composition of new tyres for cars & trucks, which comprise of 90% of the total tyre market.
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Average composition of new car and truck tyres
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Materials
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Car (%)
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Truck (%)
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Rubber hydrocarbon
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48
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45
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Carbon black
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22
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22
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Steel
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15
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25
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Textile
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5
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-
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Zinc oxide
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1
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�2
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Sulphur
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1
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1
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Other chemicals / oil
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8
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5
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(Source: Commission of the European Communities,
1991)
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These waste tyres can be recycled with the latest air turbine refrigeration technology, which is highly cost-effective when compared to cryo-grinding.
Scrap tyres are split into the following products in the process of manufacture- The technology is from China. Standard plant capacities are 10,000 tons, 20,000 tons and 30,000 tons per year.
1. Crumb rubber of 10 - 200 mesh, which is mainly used for mixing with Bitumen to the extent of 10 - 12% to make rubberized roads, which have better resistance to cracking and creeping. Other uses of crumb rubber includes tyre re-treading, sports tracks, carpet backing and rubber mats. They are sold @ Rs. 12-20 per kg.
2. Steel cords, which are used for making springs for mattresses or sold as scrap. The present market price is Rs. 10 -12 per kg.
3. Nylon cords, which are used in non-woven geo-textiles, mainly in TV and Computer areas. New applications are to make nylon filament
Cost of tyre recycling plants -
For more details, please contact -
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GoodRich MAGMA Industrial Technologies Limited | |
No. 704, 4th 'A' Cross, HRBR Layout 1st Block, | Kalyan Nagar, Bangalore - 560 043, | | Karnataka, India. | | Ph: 0091 - 80 - 41138200 | Email: [email protected] / | [email protected] | Website: www.goodrichmagma.com / | www.goodrichsugar.com | | |
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