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Technique for producing tire tread regenerated rubber

A technology of reclaimed rubber and process method, applied in the field of producing tread reclaimed rubber, can solve the problems of long time, low production efficiency and high energy consumption

Inactive Publication Date: 2013-10-09
GERON RUBBER HAIMEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional process of producing tread regenerated rubber is to crush the rubber material into powder and then desulfurize it for about 6 hours, and then go through repeated refining in the subsequent process to restore the plasticity of the rubber and meet the corresponding use requirements. This method produces The power consumption per ton of tread recycled rubber reaches about 900 degrees, high energy consumption, long time and low production efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The process of producing tread reclaimed rubber is to first inspect the waste tread rubber, remove the non-tread rubber and the sediment impurities attached to the surface, and then crush and granulate the raw materials to achieve a rubber material with a fineness of 30 meshes; 100 parts by weight of the above-mentioned sizing material, 0.2 parts by weight of alkylphenol disulfide, 6 parts by weight of pine tar, and 1 part by weight of rosin are put into a high-temperature and high-pressure dynamic desulfurization device for desulfurization reaction, and the desulfurization temperature in the desulfurization device is controlled. Rapidly raise the temperature to 280°C, the pressure in the cylinder is 3.0Mpa, and the desulfurization time is 1.5 hours. After desulfurization, it is cooled rapidly in the desulfurization device. The whole process from feeding to discharging is completed within 2.5 hours; after desulfurization, the rubber is sent in batches The first kneader p...

Embodiment 2

[0016] The process of producing tread reclaimed rubber is to first inspect the waste tread rubber, remove the non-tread rubber and the sediment impurities attached to the surface, and then crush and granulate the raw materials to achieve a rubber material with a fineness of 30 meshes; 100 parts by weight of the above-mentioned sizing material, 0.3 parts by weight of alkylphenol disulfide, 8 parts by weight of pine tar, and 2 parts by weight of rosin are put into a high-temperature and high-pressure dynamic desulfurization device together for desulfurization reaction, and the desulfurization temperature in the desulfurization device is controlled. Rapidly raise the temperature to 290°C, the pressure in the cylinder is 3.1Mpa, and the desulfurization time is 1.8 hours. After desulfurization, it is cooled rapidly in the desulfurization device. The whole process from feeding to discharging is completed within 2.5 hours; after desulfurization, the rubber is sent in batches The first...

Embodiment 3

[0018] The process of producing tread reclaimed rubber is to first inspect the waste tread rubber, remove the non-tread rubber and the sediment impurities attached to the surface, and then crush and granulate the raw materials to achieve a rubber material with a fineness of 30 meshes; 100 parts by weight of the above-mentioned sizing material, 0.25 parts by weight of alkylphenol disulfide, 7 parts by weight of pine tar, and 1.6 parts by weight of rosin are put into a high-temperature and high-pressure dynamic desulfurization device for desulfurization reaction, and the desulfurization temperature in the desulfurization device is controlled. Rapidly raise the temperature to 300°C, the pressure in the cylinder is 3.2Mpa, and the desulfurization time is 2 hours. After desulfurization, it is cooled rapidly in the desulfurization device. The whole process from feeding to discharging is completed within 2.5 hours; after desulfurization, the rubber is sent in batches The first kneader...

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Abstract

The invention relates to a technique for producing tire tread regenerated rubber, which comprises the following steps: putting 100 parts by weight of 30-mesh rubber material, 0.2-0.3 part by weight of antioxidant, 6-8 parts by weight of softening agent and 1-2 parts by weight of plasticizer into a high-temperature high-pressure dynamic desulfurizing unit to perform desulfurization reaction, wherein the desulfurization temperature in the desulfurizing unit is quickly raised to 280-300 DEG C, the pressure in the cylinder is 3.0-3.2 Mpa, and the desulfurization time is 1.5-2.0 hours; after finishing the desulfurization, quickly cooling the desulfurizing unit, wherein the overall process from feeding to discharging is completed within 2.5 hours; sending the desulfurized rubber material to a first kneading machine and a second kneading machine in different batches to perform plastification, and sending to a first refiner to perform refinement, thereby obtaining a rubber thin sheet with the thickness of 0.3-0.4mm under the mechanical action of the refiner; and discharging the sheet through a molding roller to obtain the refined regenerated rubber finished product, metering, cooling and packaging. The invention has the advantages of energy saving, high efficiency, high economy and environmental protection.

Description

Technical field: [0001] The invention relates to a production process of reclaimed rubber, in particular to a process for producing tread regenerated rubber. Background technique: [0002] The traditional process of producing tread regenerated rubber is to crush the rubber material into powder and then desulfurize it for about 6 hours. After repeated refining in the subsequent process, the plasticity of the rubber can be restored to meet the corresponding use requirements. This method produces The power consumption per ton of tread regenerated rubber reaches about 900 degrees, which leads to high energy consumption, long time and low production efficiency. Invention content: [0003] In order to overcome the above-mentioned problems in traditional production, the present invention provides an energy-saving process for producing reclaimed tread rubber. The process is energy-saving, highly efficient, economical and environmentally friendly. [0004] The technical scheme ado...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B7/52B29B9/00
Inventor 严火标
Owner GERON RUBBER HAIMEN
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