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Device and method for regenerating waste rubber at normal pressure, medium temperature and low consumption

A technology for regenerating waste rubber and waste rubber, which is applied in the direction of climate sustainability, plastic recycling, sustainable manufacturing/processing, etc., can solve the problems of high energy consumption, low production efficiency, and high equipment cost, and achieve low energy consumption and high equipment cost. The effect of low manufacturing cost and short regeneration time

Inactive Publication Date: 2013-07-17
QINGWEI RUBBER SUQIAN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This has solved the problem of product quality stability to a certain extent, but the problems of high equipment cost, high energy consumption and low production efficiency have not been solved

Method used

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  • Device and method for regenerating waste rubber at normal pressure, medium temperature and low consumption
  • Device and method for regenerating waste rubber at normal pressure, medium temperature and low consumption
  • Device and method for regenerating waste rubber at normal pressure, medium temperature and low consumption

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1: Add 100 parts of 18-mesh tire tread waste rubber powder, 10 parts of pine tar and 0.1 part of 2,2'-disulfide (6-tert-butyl-p-phenol) to the heating reactor tank 1 (tank Body diameter=100cm, length-to-diameter ratio=6:1), close the first material inlet 6, start the paddle drive motor 5 to drive the stirring paddle 2 to stir the material, and heat the tank body by electric heating 3 to heat up the material according to the temperature The temperature in the tank measured by the sensor 4 rises to 200°C. After continuing to react for 20 minutes, open the connecting valve 14, so that the material in the tank enters the two-layer cooler cylinder 8 connected in series from the first material outlet 7 within 2 minutes, and at the same time Start the screw drive motor 11, and let the cooling medium pass through the cooling channel 10, and the screw transports the material for 10 minutes to cool the temperature to 60°C, and then the material can be taken from the second...

Embodiment 2

[0030]Example 2: Add 100 parts of waste ethylene-propylene rubber, 10 parts of naphthenic oil, 15 parts of paraffin oil and 3 parts of n-butylamine into the heating reactor tank 1 (tank diameter=100cm, aspect ratio=6:1 ), close the first material inlet 6, start the paddle drive motor 5 to drive the stirring paddle 2 to stir the material, heat the tank body by electric heating 3 to raise the temperature of the material, and the temperature inside the tank is measured by the temperature sensor 4 to rise to 250°C. After continuing to react for 40 minutes, open the connection valve 14, so that the material in the tank enters the single-layer cooler cylinder 8 within 2 minutes from the first material outlet 7, and at the same time starts the screw drive motor 11, and makes the inside of the cooling channel 10 The cooling medium is introduced, and the material is conveyed by the screw for 12 minutes to cool the temperature to 75°C, and then the material can be taken from the second m...

Embodiment 3

[0032] Example 3: Add 100 parts of waste butyl rubber, 5 parts of rosin and 2.0 parts of cetylamine into the heating reactor tank 1 (tank diameter=100cm, aspect ratio=6:1), close The first material inlet 6, start the paddle drive motor 5 to drive the stirring paddle 2 to stir the material, heat the tank body by electric heating 3 to heat up the material, and the temperature in the tank is measured by the temperature sensor 4. The temperature rises to 160°C, and the reaction continues for 15 minutes , open the connection valve 14, so that the material in the tank enters the two-layer cooler cylinder 8 in series from the first material outlet 7 within 2 minutes, and at the same time starts the screw drive motor 11, and makes the cooling channel 10 pass into the cooling medium, the screw transports the material for 8 minutes to cool it down to 50°C, and then the material can be taken from the second material outlet 13, thus completing a waste rubber regeneration process; in additi...

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Abstract

The invention relates to a device and a method for regenerating waste rubber at normal pressure, medium temperature and low consumption, and belongs to the field of reutilization of the waste rubber. The device comprises two parts, wherein the first part is a heating reaction kettle which comprises a tank body, a stirring paddle, a heater, a temperature sensor, a paddle driving motor, a first material inlet and a first material outlet; the second part is a cooler which comprises a cylinder body, a spiral, a cooling flow channel, a spiral driving motor, a second material inlet and a second material outlet; and the material outlet of the heating reaction kettle is connected with the material inlet of the cooler. The regeneration process flow which utilizes the device comprises the following steps of: simultaneously adding metered waste rubber, softening agents and activating agents to the heating reaction kettle; reacting at 160-250 DEG C for 15-40 minutes, and then opening a connecting valve to enter the cooler; conveying for 8-15 minutes through the spiral, and cooling materials to be lower than 80 DEG C. The device and method which are disclosed by the invention have the advantages of low manufacturing cost and environmental protection and energy saving in a production process, effectively solve the problem of wall adhesion of rubber powder in a regeneration process and are stable in product quality.

Description

Technical field: [0001] The invention relates to a new device and method for desulfurization and regeneration of waste rubber, in particular to a device and method for regenerating waste rubber at normal pressure, medium temperature and low consumption, and belongs to the field of waste rubber recycling. Background technique [0002] my country is the world's largest rubber consumer and the world's largest waste rubber producer. In 2011, my country produced 250 million waste tires with a weight of about 9 million tons. The comprehensive utilization of waste rubber is the core of the circular economy of the rubber industry. , Desulfurization and reclaimed waste rubber is currently the most important way of recycling waste rubber in my country. In 2010, my country's reclaimed rubber output reached about 3 million tons, which is of great significance for reducing my country's dependence on foreign rubber resources, saving petrochemical resources, and protecting the environment. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J11/18C08J11/20C08J11/26C08J11/28C08L17/00
CPCY02P20/10Y02W30/62
Inventor 张立群史金炜任冬云王士军费德立李光曙
Owner QINGWEI RUBBER SUQIAN
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