Worldwide, it is estimated that one billion scrap tires are produced every year. Instead of burning the tires, the Metso system roasts them at a lower temperature in an atmosphere devoid of oxygen (so that no actual burning will occur). This method of roasting is called pyrolysis, and is used fo
r many different processes. By using pyrolysis, the tire shreds are broken down into their three basic components: carbon black char, steel radials and oil/gas.
From a single tire, approximately 1/3 of the weight is steel, 1/3 becomes pyro black (carbon black plus additives) and the final 1/3 is oil/gas. The products from the tire pyrolysis system are carbon black char, oil (similar to number 2 grade fuel oil), steel and non-condensable gases.
The tire pyrolysis system consists of an indirectly fired rotary kiln, steel recovery, char handling, grinding & pelletizing circuit, oil condensing system and gas cleaning system. The system is designed to operate 24 hours per day, 7 days per week.
This product line system offers a true recycling solution to the large amount of rubber used in tires and industrial products. Recycled materials can be used to make new rubber products.