Method for recycling waste tires

A technology of waste tires and waste tire particles, which is applied in the field of resource recycling, can solve the problems of no large-scale production devices, and achieve the effect of promoting resource recycling, excellent performance, and good mechanical properties

Inactive Publication Date: 2018-02-23
青岛华诺金属制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

3. Chemical, high temperature or microwave cracking to recover carbon black and fuel oil, but so far no large-scale production device has appeared
Adding an appropriate amount of vulcanized rubber powder into the rubber compound, although the tensile strength is slightly affected, its dynamic mechanical properties will be greatly improved, and the processability, stiffness and fluidity will be improved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A method for recycling waste tires comprises:

[0020] (1) Use a large cutting machine to cut waste tires, and break large pieces of waste tires into small rubber blocks;

[0021] (2) Break the above-mentioned small rubber block into particles of about 2cm with a coarse crusher;

[0022] (3) the scrap tire particles obtained above are first sent into a magnetic separator to separate rubber and steel wires;

[0023] (4) the micelle obtained above is sent into the air separator to remove the fiber in the micelle;

[0024] (5) Wash the waste tire particles obtained by screening in a sodium hydroxide solution with pH=8, soak for 6 hours, and dry in an oven at 30°C;

[0025] (6) sending the dried waste tire particles into a fine crusher for further grinding to obtain finished rubber powder, which is screened and then classified into particle sizes, and those with a particle size of less than 0.06 mm are used as finished rubber powder;

[0026] (7) Finally, the rubber powd...

Embodiment 2

[0028] A method for recycling waste tires comprises:

[0029] (1) Cut the waste tires with a large cutting machine, and first break the large waste tires into small rubber blocks;

[0030] (2) The above-mentioned small rubber block is made into particles of about 2 cm with a coarse crusher;

[0031] (3) the scrap tire particles obtained above are first sent into a magnetic separator to separate rubber and steel wires;

[0032] (4) the micelle obtained above is sent into the air separator to remove the fiber in the micelle;

[0033] (5) Wash the waste tire particles obtained by screening in a potassium hydroxide solution with pH=8, soak for 7 hours, and dry in an oven at 35°C;

[0034] (6) sending the dried waste tire granules into a fine crusher for further grinding to obtain finished rubber powder, which is then screened and classified into particle sizes, and the finished rubber powder with a particle size of less than 0.06 mm is taken;

[0035] (7) Finally, the rubber po...

Embodiment 3

[0037] A method for recycling waste tires comprises:

[0038] (1) Cut the waste tires with a large cutting machine, and first break the large waste tires into small rubber blocks;

[0039] (2) The above-mentioned small rubber block is made into particles of about 2 cm with a coarse crusher;

[0040] (3) the scrap tire particles obtained above are first sent into a magnetic separator to separate rubber and steel wires;

[0041] (4) the micelle obtained above is sent into the air separator to remove the fiber in the micelle;

[0042] (5) Wash the waste tire particles obtained by screening in a potassium hydroxide solution with pH=8, soak for 8 hours, and dry in an oven at 40° C.;

[0043] (6) sending the dried waste tire granules into a fine crusher for further grinding to obtain finished rubber powder, which is then screened and classified into particle sizes, and the finished rubber powder with a particle size of less than 0.06 mm is taken;

[0044] (7) Finally, the rubber ...

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Abstract

The invention relates to a method for recycling waste tires, which specifically comprises the following steps: cutting and crushing waste tire rubber, separating and screening impurities such as steel wire and fiber components in waste tire rubber particles, and then separating and screening the obtained waste tire particles Washing, soaking and drying are carried out, and the dried waste tire particles are sent to a fine crusher for further grinding to obtain finished rubber powder. Finally, the rubber powder obtained above is used according to the waste tire rubber powder: butyl rubber: sulfur: vulcanizing agent DTDM: accelerator DM: zinc oxide: stearic acid: carbon black: paraffin oil: processing aid H501: tackifier TKO‑ 90: The quality of anti-aging agent is 50:20:0.7:0.45:0.4:3.0:0.6:30:13.5:1.6:2.2:0.35 for film production. The film prepared by using the above formula has good mechanical properties, durability Abrasion resistance, corrosion resistance and oil resistance, etc., can be applied to the production of various wheel inner tubes.

Description

technical field [0001] The invention relates to the technical field of resource recycling, in particular to a method for recycling waste tires. Background technique [0002] Waste rubber is the second largest waste polymer material in the world except waste plastics, and it mainly comes from waste tires. The accumulation of a large number of waste tires will not only cause a waste of resources and breed mosquitoes, but also easily cause fires, and the flames are difficult to extinguish. Since waste rubber is a thermosetting polymer material with high toughness and elasticity, it is difficult to degrade, and the recycling process is extremely complicated and the cost is high. Therefore, gradually promoting or improving the disposal of waste tires and maximizing the recycling of waste rubber resources can not only help solve the problem of domestic resource shortage, but also have great significance for the development of circular economy and the establishment of a conservati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L21/00C08L23/22C08L91/06C08K13/02C08K3/06C08K5/47C08K3/22C08K5/09C08K3/04
CPCC08L21/00C08L2205/03C08L2207/24C08L23/22C08L91/06C08K13/02C08K3/06C08K5/47C08K3/22C08K5/09C08K3/04
Inventor 石少臣
Owner 青岛华诺金属制品有限公司
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