Method and device for industrially recycling waste tire based on ultrahigh pressure water jet technology

Abstract

The invention discloses a method and a device for industrially recycling a waste tire based on an ultrahigh pressure water jet technology. The method is characterized by comprising the following steps of: dividing the waste tire from which a hub is removed into a tire tread arc rubber block and a tire bead arc rubber block; and performing jet cutting on the tire tread arc rubber block and the tire bead arc rubber block by using ultrahigh pressure water jet which is from an ultrahigh pressure water generating device and carries an abrasive, adjusting the pressure of the water jet to ensure that the cutting pressure of the water jet is not enough to cut metal wires in the tire tread arc rubber block and the tire bead arc rubber block, cutting rubber in the tire tread arc rubber block and the tire bead arc rubber block into rubber powder particles, and taking the metal wires out to obtain the rubber powder particles. The method and the device are used for recycling the waste tire simply,practically, industrially and efficiently at high quality.

Description

technical field [0001] The invention relates to a method and device for industrially recycling waste tires to prepare partially desulfurized rubber powder using ultra-high pressure water jet technology. The recovered products are pure rubber particles and metal wires. The method and device can be used for recycling waste tires and rubber recycling chemical and other fields. Background technique [0002] With the rapid development of the automobile industry, the high-efficiency and high-value recycling of waste tires has attracted widespread attention from domestic and foreign scientific research institutions and waste tire recycling companies. [0003] The tire is composed of steel wire, cord and rubber. The materials of the cord mainly include glass fiber, chemical fiber and steel wire. Due to the high elasticity of rubber and the great toughness of steel wire, the steel wire and rubber are very tightly combined, and it is very difficult to separate them. It is difficult t...

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Problems solved by technology

[0003] The tire is composed of steel wire, cord and rubber. The materials of the cord mainly include glass fiber, chemical fiber and steel wire. Due to the high elasticity of rubber and the great toughness of steel wire, the steel wire and rubber are very tightly combined, and it is very difficult to separate them. Difficult to break, resulting in high-efficiency and high-value recycling is very difficult

[0004] For the recycling of waste tires, the main methods currently adopted are pyrolysis, explosive explosion, low-temperature crushing, mechanical physics, etc. Due to the complex process and equipment of traditional recycling methods, and the recycled products are mainly metals and low-quality rubber , the regeneration of vulcanized rubber needs to go through a desulfurization process, and the current chemical desulfurization process is complicated, and the additional products and separation process cause secondary pollution to the environment, and the cost is high. As a result, the recovered rubber cannot be directly used to manufacture recycled rubber products, resulting in the existing The recycling of waste tires faces problems such as low recycling efficiency, low degree of rubber recycling, and poor economic efficiency.

[0005] A method for preparing rubber powder from waste tires based on water jet technology has been proposed, but for the recycling of waste tires, pure water jet technology is used to prepare rubber powder that cannot achieve partial desulfurization, and the jet pressure is high, and the preparation efficiency of rubber powder is relatively low. Low cost, complex equipment structure, waste tires need to be clamped individually, rubber and metal wire are not completely separated, it is impossible to use waste tires to prepare rubber powder in batches, and it is difficult to form an industrialized recycling chain

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