Automobile tire recovery processing method

An automobile tire and recycling technology, applied in the field of rubber recycling, can solve the problems of heavy pollution, high energy consumption, restricting the development of the enterprise industry, etc., and achieve the effect of high oil quality and oil yield, and simple process flow

Inactive Publication Date: 2013-09-18
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the scale of comprehensive utilization of waste tires is generally small, the production is not standardized, and there are common problems of high energy consumption and heavy pollution, which restricts the development of enterprises and the entire industry

Method used

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  • Automobile tire recovery processing method

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Effect test

Embodiment 1

[0011] This embodiment provides a method for recycling automobile tires, which is characterized in that: the method for recycling automobile tires mainly includes decontaminating the automobile tires and breaking them into strips with an end surface area of ​​less than 50 square millimeters. Rubber is thermally cracked in a special thermal cracking furnace at a temperature of 450°C and under a negative pressure of 0.05 MPa for 10 minutes. The gas and oil are recovered and separated through a condenser. The primary fuel used for cracking is coal After continuous operation of the cracking device, all the combustible gas produced can be returned to the bottom of the furnace as a secondary energy source for pyrolysis heating, replacing 30% of the primary energy. Electromagnets are used to remove the metal part, and the carbon black is 700 mesh.

[0012] The structure of the special pyrolysis furnace is a split barrel structure, the sealing and opening are controlled by electromagne...

Embodiment 2

[0014] This embodiment provides a method for recycling automobile tires, which is characterized in that: the method for recycling automobile tires mainly includes decontaminating the automobile tires and breaking them into strips with an end surface area of ​​less than 50 square millimeters. Rubber is thermally cracked in a special thermal cracking furnace at a temperature of 475°C and under a negative pressure of 0.06 MPa for 13 minutes. The gas and oil are recovered and separated through a condenser. The primary fuel used for cracking is coal After continuous operation of the cracking device, all the combustible gas produced can be returned to the bottom of the furnace as a secondary energy source for cracking heating, replacing 35% of the primary energy. Electromagnets are used to remove metal parts, and the carbon black is 800 mesh.

[0015] The structure of the special pyrolysis furnace is a split barrel structure, the sealing and opening are controlled by electromagnet po...

Embodiment 3

[0017] This embodiment provides a method for recycling automobile tires, which is characterized in that: the method for recycling automobile tires mainly includes decontaminating the automobile tires and breaking them into strips with an end surface area of ​​less than 50 square millimeters. Rubber is thermally cracked in a special thermal cracking furnace at a temperature of 500°C and under a negative pressure of 0.07 MPa for 15 minutes. The gas and oil are recovered and separated through a condenser. The primary fuel used for cracking is coal After continuous operation of the cracking device, all the combustible gas produced can be returned to the bottom of the furnace as a secondary energy source for cracking heating, replacing 40% of the primary energy. Electromagnets are used to remove metal parts, and the carbon black is 900 mesh.

[0018] The structure of the special pyrolysis furnace is a split barrel structure, the sealing and opening are controlled by electromagnet po...

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Abstract

An automobile tire recovery processing method mainly comprises the steps of: crushing a decontaminated automobile tire into strips with end surface area of less than 50mm<2>, carrying out thermal pyrolysis on the strip-shaped rubber in a special thermal pyrolyzer at the temperature of 450-500 DEG C under the state of negative pressure of 0.05-0.07MPa for 10-15 minutes, carrying out gas and oil recovery and separation through a condenser, wherein the primary fuel adopted for pyrolysis is coal, after combustible gas generated in continuous running of the pyrolyzer can entirely return back to the bottom of the pyrolyzer as a secondary energy resource for pyrolysis and heating so as to replace a part of primary energy resource; and removing metal parts by adopting an electromagnet to obtain carbon black of 700-900 meshes. The automobile tire recovery processing method has the advantages that the process flow is high, the effluent oil quality and oil extraction rate are high, the calorific value of the recovered industrial fuel oil is far higher than that of natural gas, liquefied gas and other fuels, so that the recovered industrial fuel oil is extremely good high-performance liquid fuel, and the automobile tire recovery processing method is the most environment-friendly processing mode with highest economic benefits.

Description

technical field [0001] The invention relates to the field of rubber recycling, in particular to a method for recycling automobile tires. Background technique [0002] As a polymer material, rubber has been widely used in various fields of the national economy. There are a large number of waste tires and it is difficult to deal with them. Improper storage or treatment will seriously pollute the environment. The disposal of waste tires has become a very urgent environmental and social problem. At present, the scale of comprehensive utilization of waste tires is generally small, the production is not standardized, and there are common problems of high energy consumption and heavy pollution, which restricts the development of enterprises and the entire industry. Contents of the invention [0003] The purpose of the present invention is to fully recover useful substances in waste tires, save energy and protect the environment, and especially provides a method for recycling and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G1/10C10B53/07
CPCY02P20/143
Inventor 王玲王庆国佟圣奎
Owner STATE GRID CORP OF CHINA
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