What are the requirements of humidity and size of used car tires pyrolysis? Does it need tire shredders?

For used car tires pyrolysis, the humidity and size are two important factors affecting the final oil yield and quality. Generally, the processed used car tires need to be dry, and the size varies from the used car tire pyrolysis machine types. Then this passage will have a brief introduction about this:

1. Humidity Requirements

Generally, the processed used car tires should have low humidity content. Excess humidity can interfere with the pyrolysis process by requiring additional energy to evaporate the water, which can lead to lower efficiency and potential operational issues. Humidity can also cause uneven heating and the formation of undesirable by-products. If used car tires have significant humidity, they should be pre-treated to reduce their water content. This might involve drying or ensuring that the used car tires are stored in a dry environment before processing.

Used car tires pyrolysis and obtained final products

2. Size Requirements

Whether or not to shred used car tires before pyrolysis and the detailed size will depend on the types of used car tire pyrolysis machine you choose. Commonly, there are main types of used car tire pyrolysis machines in the market: batch type, semi-continuous and fully continuous type:

DOING used car tire pyrolysis machine for sale

For a normal capacity batch type used car tire pyrolysis machine, the diameter of reactor feeding door is usually bigger than 1200mm. Since the size of common used car tire never exceeds 900mm, it can be directly fed into the reactor for processing without doing any pretreatment such as cutting or shredding.

For our continuous used car tire pyrolysis machine, the key technology of this equipment lies in continuous production. In order to facilitate the continuous feeding, continuous pyrolysis and continuous oil output of used car tires, it is necessary to pre-treat the used car tires with the rubber powder production equipment to obtain the metal free rubber powder, which can avoid the block inside the slagging system.

Slagging system of DOING continuous used car tire pyrolysis machine

Since the feeding structure of our semi-continuous used car tire pyrolysis machine is similar to fully continuous one, the requirement on the feeding conditions of raw material is same. If raw material is the waste tire, it should be processed into metal free rubber powder first and the tire shredder will be needed.

The following is a brief work flow introduction about used car tires pretreatment:

(1) Shredding: used car tires are shredded into blocks of about 3.5 cm by the tire shredder machine (circle cutter, strip cutter, block cutter);

(2) Grounding: the tire fragments enter the grinder through a conveyor belt and are crushed and ground into rubber powder particles of about 17-18 mesh;

DOING rubber powder production equipment for sale

(3) Magnetic separating: the tire rubber powder will enter the vibrating screen and magnetic separator in turn, and the ground steel wire mixed rubber powder particles will pass through two sieve beds to separate the steel wire from the rubber powder, and finally a relatively pure rubber powder will be obtained.

To conclude, the requirements of humidity and size of used car tires pyrolysis will be decided by the types of used car tire pyrolysis machine. For more information, please feel free to send us your enquiry.