Recycling method of waste mining machinery tire

A technology of tires and machinery, which is applied in the field of recycling waste mechanical tires, can solve the problems of affecting the normal use of tires, high impurity components, low tensile strength and service life, etc., to achieve outstanding economic and social benefits, good effect, The effect of increasing the plasticity of Weishi

Inactive Publication Date: 2019-04-26
甘肃兰煤机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The tensile strength and service life of the recycling of waste tires by this method are relatively low, and there are many impurities in the preparation process, which affects the normal use of tires.

Method used

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  • Recycling method of waste mining machinery tire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for reusing waste mine machinery tires, comprising the steps of:

[0024] 1) Pulverization: Use waste mechanical tires with a tensile strength of 30 MPa and an elongation at break of 300%, place them in an environment with a temperature of -4°C for 25 minutes, place them in a pulverizer, and pulverize them until the particle size is 60 mesh. Pulverize into powder, then mix and seal the tire rubber powder with desulfurizing agent and aromatic hydrocarbon oil, and then masticate in an open mill, then cut and pulverize to obtain desulfurized tire rubber powder.

[0025] 2) Powerful magnetic separation: the rubber powder processed in step 1) is separated in a wet electromagnetic strong magnetic separator, the magnetic field strength is 15000 gauss, and the pulp flow rate is 1.8cm / scm / s.

[0026] 3) Modification: Put the rubber powder treated above through the feeding device of the screw extruder and add the modifier p-tert-butylphenol formaldehyde resin, maleic anh...

Embodiment 2

[0031] A method for reusing waste mine machinery tires, comprising the steps of:

[0032] 1) Pulverization: Use waste mechanical tires with a tensile strength of 35 MPa and an elongation at break of 350%, place them in an environment with a temperature of -2°C for 27 minutes, place them in a pulverizer, and pulverize them until the particle size is 60 mesh. Pulverize into powder, then mix and seal the tire rubber powder with desulfurizing agent and aromatic hydrocarbon oil, and then masticate in an open mill, then cut and pulverize to obtain desulfurized tire rubber powder.

[0033] 2) Powerful magnetic separation: the rubber powder treated in step 1) is separated in a wet electromagnetic strong magnetic separator, the magnetic field strength is 15500 gauss, and the pulp flow rate is 1.9 cm / s.

[0034] 3) Modification: Put the rubber powder treated above through the feeding device of the screw extruder and add the modifier p-tert-butylphenol formaldehyde resin, maleic anhydrid...

Embodiment 3

[0039] A method for reusing waste mine machinery tires, comprising the steps of:

[0040] 1) Pulverization: Use waste mechanical tires with a tensile strength of 40 MPa and an elongation at break of 400%, place them in an environment with a temperature of -1°C for 30 minutes, place them in a pulverizer, and pulverize them until the particle size is 60 mesh. Pulverize into powder, then mix and seal the tire rubber powder with desulfurizing agent and aromatic hydrocarbon oil, and then masticate in an open mill, then cut and pulverize to obtain desulfurized tire rubber powder.

[0041] 2) Powerful magnetic separation: the rubber powder processed in step 1) is separated in a wet electromagnetic strong magnetic separator, the magnetic field strength is 16000 gauss, and the pulp flow rate is 2.0 cm / s.

[0042] 3) Modification: Put the rubber powder treated above through the feeding device of the screw extruder and add the modifier p-tert-butylphenol formaldehyde resin, maleic anhydr...

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Abstract

The invention discloses a recycling method of a waste mining machinery tire and belongs to the technical field of recover of waste tires. The recycling of the waste mining machinery tire is realized by the six steps of crushing, strong magnetic separation, modification, low-temperature grinding, extrusion and mold forming. The recycling method of the waste mining machinery tire, disclosed by the invention, has the beneficial effects that the waste mining machinery tire is recycled, is excellent in all physical performance indexes and has a shore hardness of 78-81, a tensile strength of 27.3-27.9 MPa, a tensile rate of 480-486 percent, a tear strength of 50.1-50.7 KN/M, a service life of five-five and a half years and an impurity constituent of less than 0.03 percent; through test, the mainperformance is excellent. The recycling method disclosed by the invention can bring along outstanding economic and social beneficial effects, thereby having a wide market application prospect.

Description

technical field [0001] The invention belongs to the technical field of waste machinery recycling, and in particular relates to a method for reusing waste machinery tires. Background technique [0002] The waste tires produced in China are increasing at a rate of 8% to 10% every year. Until 2010, the amount of waste tires produced in China reached about 250 million, and the recycling rate was only about 50%, which was less than 50% of that in western developed countries. Increased pollution affects people's physical and mental health. [0003] Scrap tires are mainly used in the following aspects: Fire repair: use machines to vulcanize tires that can be repaired by fire at high temperature, add steel wire and rubber and other components, and turn the tires into tires that can be used again. Retreading: Use machines to cover or fully retread tires that can be retreaded, turning the tires into reusable tires. Segmentation: Decompose the waste tires by machine or by hand with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L17/00C08L61/06C08K3/34C08J11/28C08J3/28
CPCC08J3/28C08J11/28C08J2319/00C08L17/00C08L61/06C08K3/34C08K3/346Y02W30/62
Inventor 龚成乐龚大存
Owner 甘肃兰煤机械制造有限公司
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