Tires used in vehicles are made of rubber, and get worn out with the constant usage and wear and tear they are put through during the mileage that they cover. Worldwide, billions of scrap tires are added to refuse heaps and become a problem for the environment. Tire pyrolysis is a process that allows this scrap to be recycled.
In pyrolysis, tires are roasted at low temperatures in enclosures that are devoid of any oxygen, and this prevents the tires from getting burnt. During pyrolysis, the tires break down into steel radials, oil/gas and carbon black char in almost equal proportions. Any system that is used for tire pyrolysis (pirólisis de neumáticos) will have a rotary kiln that is indirectly fired, equipment to recover steel, handling devices for the char and its grinding and pelletizing, and a system to condense the oil and clean the gas. Most tire pyrolysis kilns are designed to operate without interruption on a 24/7 basis. Recycled materials from the pyrolysis can be used to make new rubber products.
Tires need to be shredded before they are introduced into kilns and this may require supplementary equipment. To ensure continuous operation of the system it is necessary to ensure a continuous feed of shredded tires. The shredding creates tire chips that are about two inches by two inches. A fair proportion of steel in tires is recovered during the shredding process and can be easily separated.
The kiln will have different temperature zones that enable each part of the pyrolysis(planta de pirolisis de lodo aceitoso) process. The chips are fed into the kiln where the rubber first becomes brittle and separates from the steel that was part of the tire. In the next stage, oil and gas get forced out of the rubber char which is swept from the kiln to undergo further processing. In the last stage, the rubber char converts to a carbon black substance that is completely separated from the steel wires that were part of the tire. The steel then needs to be cooled, compacted, and collected for sending to a facility for recycling steel. The rubber char is then sent onward to the grinding and pelletizing equipment where it is then bagged for further transport.
What happens to the oil and gas that have been swept out from the kiln? This goes through two-stage condenser equipment that helps to extract the oil. This oil that is recovered has a lot of similarity to diesel oil in its heating value and viscosity. It does have a higher sulfur content and a lower flashpoint. This byproduct is in demand by industries burn oil that has high sulfur content. It is also possible to refine this oil to remove the compounds of sulfur. The gas stream extracted during pyrolysis can be used as fuel gas in industries or burned in boilers that are used for generating steam.
A properly set up system for tire pyrolysis is a relatively clean operation that produces very little waste and emissions. It is only when the combustion remains incomplete that air can be polluted. If you want to buy a tire pyrolysis plant, this page will help you https://www.bestoneco.com/planta-de-reciclaje-de-neumaticos/. And if you are interested in more environmentally friendly recycling equipment, please visit(Bestongroup).