Why do flash explosions occur in the waste tire pyrolysis process?

Industry news / DATE:2023/6/1

The flash explosion phenomenon of waste tire pyrolysis process is mostly caused by two reasons: first, the waste tires in the pyrolysis reactor are not pyrolyzed into oil gas completely, which leads to friction and fire in the pyrolysis reactor, and the waste tire pyrolysis suddenly flashes. Second, the temperature of the pyrolysis reactor did not cool to an appropriate temperature, and the high-temperature oil gas remaining in the pyrolysis reactor would collide with oxygen, resulting in a flash explosion phenomenon.

waste tire pyrolysis plant

High quality waste tire pyrolysis plant

If your waste tire pyrolysis plant has a flash explosion during the pyrolysis process, you can first analyze and check whether it is caused by the above two reasons. So, how do we prevent the waste tire pyrolysis plant from flash explosions during the pyrolysis process?

First of all, the oil gas in the tire pyrolysis plant reactor should be extracted as completely as possible, which means that the waste tires should be pyrolyzed at certain temperature for enough time.

Secondly, after the waste tire pyrolysis process is completed, turn on the blower at the cold air outlet to cool down, so as to ensure that the temperature of the pyrolysis reactor body drops below 70°C, which is just below the flash point of oil gas.

Finally, the most important point is to configure a negative pressure safety device. When the temperature of the tire pyrolysis reactor body drops to about 70°C, turn on the negative pressure device to vacuum for 1.5 hours to extract the oil gas in the furnace and replace it with natural air, so there is no contact between high-temperature oil gas and oxygen, naturally there will be no flash explosion phenomenon of waste tire pyrolysis plant.

pyrolysis plant negative pressure device

Patented negative pressure device of pyrolysis plant designed by DOING

DOING waste tire pyrolysis plant is equipped with the negative pressure safety device, which solves the problem of small flash explosions in the process of waste tire pyrolysis, the safety factor is high. And at the same time can pump the oil gas in the pyrolysis reactor to the condensing system for cooling into liquid fuel, which further improves the oil yield. The negative pressure device developed and designed by DOING engineers has won the national patent certificate, which provides the greatest safety guarantee for waste tire pyrolysis plant.

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