Tire Recycling - Technology, Innovations, News
Tire Recycling - Technology, Innovations, News
Tire recycling involves various processes aimed at transforming waste tires into reusable products. Tires can be converted into rubber and steel wires, reused, or processed through tire pyrolysis to be used as fuel. Explore the details of these processes and more by checking out the waste tire recycling machine page.
Steel Wire Removal
Tires embedded with steel wires enhance resistance and longevity. Before recycling can commence, these steel wires must be extracted. The recovered steel can be repurposed for new steel products, while the rubber progresses to subsequent processing stages.
Whole Tire Processing
Following steel removal, the rubber tires must be size-reduced. This can be achieved through two main methods:
- Mechanical - Utilizing a shredder, the rubber is segmented into smaller pieces, and a granulator can regulate the fragment sizes.
- Cryogenic - The tires are frozen with liquid nitrogen and then smashed into granules using a hammer mill. Residual steel fragments are eliminated with powerful magnets, and other impurities are removed using an air classifier.
In this process, the rubber undergoes screening to remove any remaining steel and other materials affecting its quality. The rubber is also classified by particle size, and oversized pieces are discarded. For additional guidance, please consult 4 Tips for Choosing a Small Copper Granulator for more insights.
To delve deeper into the subject, visit tyre shredder for comprehensive information.
Cleaning
At this stage, the granulated rubber is cleaned using water or other cleaning agents. The clean rubber can then be utilized as raw material for products such as rubber footwear and playground surfaces.
Pyrolysis
Pyrolysis is an advanced recycling technique where entire or shredded tires are thermally decomposed in an oxygen-free reactor. This process liquifies the rubber and fractures polymers into smaller molecules, transforming into gas that exits the reactor. These gases can either be combusted directly to generate energy or condensed into a liquid form used as fuel. Although not all molecules can condense, the remaining smaller ones can serve as fuel. Approximately 40% of the tires' weight results as ash after pyrolysis.
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