What are old tires used for?

At present, the old tires are mainly used for grinding into rubber powder, desulfurization after the production of renewable rubber, and pyrolysis, decomposition into heavy oil, carbon black and other important chemical raw materials.

Mountains of old tires

In recent years, with the development of the automotive industry, the global annual production of old tires with 6% - 8% of the speed increase. The replacement of old tires is piling up, polluting the environment and causing fires due to poor handling. In the face of such a large consumption of the world, the used tires is a large amount of resources. One way to deal with old tires is to crush them directly and make them into rubber powder. Rubber powder can be used to lay roads and save a lot of asphalt. However, tires contain hydrocarbons and have a high calorific value. Using rubber powder made from tires to pave the way does not give full play to tires value.

Rubber powder made from tires

The second is the old tire desulfurization treatment, to produce recycled rubber, used for the production of rubber hose, rubber pad, etc. Recycled rubber can also be added to the new system of tires in proportion to the need. This way can save a lot of natural rubber, synthetic rubber. However, due to the differences in the actual operating environment, this old tire desulfurization treatment has corrosion problems of different degrees. Therefore, some NOX and SOX (nitrogen oxides and sulfur oxides) will leak into the atmosphere, which will cause respiratory problems for people.

Moreover, it is easy to deposit dust in the process without desulfurization. Because of environmental temperature, equipment operation and other reasons, dust is easy to generate dust, especially fine particles can cause irreversible damage to people's respiratory system and lungs, and there may be an explosion risk after dust content increases. This on the desulfurization plant requirements are also very high.

Old tire pyrolysis plant installed

Third, the old tires are pyrolyzed into fuel oil, carbon black and other important chemical raw materials by means of pyrolysis. The pyrolysis technology used in DOING's old tire pyrlysis plant USES heat energy to break down large molecules into small ones. The old tires were treated to get 45%-55% fuel oil, 10%-15% steel wire, 30%-35% carbon black, 8%-10% combustible gas. This tire pyrlysis project can achieve 100% old tire recycling, not only can obtain economic benefits, but also can change the local environment, avoid garbage pollution. What's more, there will be no pollution to the environment in the whole pyrolysis process.

Of course, in some places, the old tires are still burning, landfill and using other original treatment methods, or even discarded at will, resulting in "black pollution". It is believed that with the widespread use of old tire pyrolysis plant, the disposal of old tires will not be a problem.