Waste tire handling technology

Abstract

The invention belongs to the technical field of tire handling, and specifically relates to a waste tire handling technology. The technology comprises the following steps: S1, preprocessing, namely, cleaning a tire to remove dirt; S2, cutting the preprocessed tire into rubber blocks; S3, processing the rubber blocks for the second time; and crushing to obtain rubber scraps; and S4, feeding the rubber scraps into a reaction kettle; catalytically heating; distilling to obtain oil steam; processing the oily gas through a light and heavy component separating device; feeding a light component into acondenser; synchronously discharging carbon black during combustion; condensing to obtain liquid oil; conveying non-liquefied part into a heating system through a gas purifying system; combusting; removing dust of the waste gas produced in combustion through a dust removing system; and then discharging. According to the technology, the impurities on the tire can be cleaned by preprocessing; afterthe tire is cut into the rubber blocks, the rubber blocks are cooled and crushed under low temperature so as to obtain small rubber scraps; the rubber scraps are subjected to thermally decomposed, the inside is heated fast, so that the thermal decomposing reaction is correspondingly improved, and as a result, the yield of thermal decomposing oil is increased.

Description

technical field [0001] The invention belongs to the technical field of tire treatment, and in particular relates to a waste tire treatment process. Background technique [0002] The recycling of waste tires in my country is not optimistic. At present, the annual production of waste tires exceeds 100 million. Most of these waste tires are scattered in the market without recycling. The annual processing volume only accounts for 14.2% of the total production, which is far from keeping up with my country. The status quo of the rapid growth of waste tires. [0003] There are more than 500 tire retreading enterprises and more than 1,000 repairing enterprises in my country. The retreading capacity of old tires has reached 10 million, the production capacity of reclaimed rubber is nearly one million tons, and the production capacity of rubber powder is about 50,000 tons. [0004] There are three major obstacles to the recycling of waste tires in my country. First, the production an...

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Problems solved by technology

Moreover, most retreaded tire enterprises have low level of equipment, weak technical force, lack of necessary testing equipment, and it is difficult to improve the quality of tire recycling and processing; The development of public welfare units is struggling; third, the increase in expenditures in various fields has also aggravated the survival difficulties of waste tire processing enterprises

[0005] Among the enterprises operating rubber powder in my country, there are only a dozen relatively large-scale ones, and the other hundreds are basically at the level of simple labor and small-scale single-item processing: some even adopt the grinding wheel type of processing rubber powder 50 years ago, both Pollution and extremely low utilization rate

Waste tires are usually processed by pyrolysis, in which tires are usually processed in large chunks or whole, but this production method leads to low product yield

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