Method and device for treating waste tires

Abstract

The invention provides a method for treating waste tires. The method includes the steps: placing recycled waste tires into closed space; heating liquid water to gaseous water molecules to obtain gaseous water molecule heat energy with a high heat enthalpy value; continuously leading the gaseous water molecules into the closed space filled with the waste tires through an air outlet pipeline, discharging the air in the closed space by the gaseous water molecules to form a closed space without oxygen environments, and heating and decomposing the waste tires under the high-temperature action of the gaseous water molecules to generate tar, alkane gas, water, carbon dioxide, carbonic oxide, foreign gas and solid substances such as carbon black and steel wires; recycling waste heat of gas-liquidmixture generated by pyrolysis by a heat exchanger, performing oil-liquid separation on the gas-liquid mixture, purifying tail gas by the aid of a gas purifier, and discharging the purified tail gas;collecting and recycling the cooled solid substances such as the carbon black and the steel wires in a classified manner.

Description

technical field [0001] The invention relates to a method and a device for treating waste tires. Background technique [0002] With the rapid development of my country's automobile industry, waste tires are also growing at a double-digit rate every year. The production of waste tires in my country ranks second in the world, second only to the United States. More and more waste tires form "black pollution", which is threatening people's daily life. Waste tires are insoluble or insoluble polymer elastic materials with high elasticity and toughness, and will not change in the range of -50°C to 150°C. Waste tires are difficult to biodegrade. Long-term storage in the open air not only takes up a lot of land, Moreover, it will produce toxic and harmful gases, which will seriously pollute the environment. [0003] The process of processing waste tires in the prior art is mainly to peel off the rubber part of waste tires from steel wire and fiber materials, and then process them in...

AI Technical Summary

Problems solved by technology

In these methods in the prior art, since the thermal cracking process requires a certain working pressure, this not only increases the cost of equipment and production costs, but also increases the difficulty of operation and unsafe hidden dangers. At the same time, the thermal cracking process technology needs to add certain Catalyst will cause secondary pollution and affect the quality of the product, and the dry gas recovery is not perfect, the recovered product oil and carbon black are of poor quality, and the added value of the product is low

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