Production process of environment-friendly high-strength regenerated rubber

A technology of recycled rubber and production technology, which is applied in the field of rubber processing, and can solve the problems of large temperature difference between the inside and outside of the rubber material, excessive aging of rubber powder, poor agglomeration desulfurization effect, high pollution, and unstable product quality with high energy consumption. Stability, no need for grinding process, energy saving effect

Inactive Publication Date: 2018-05-18
江苏华兴橡胶科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Reclaimed rubber is the main way of comprehensive utilization of waste rubber in my country. There are many production methods, such as oil method, water-oil method, rapid stirring desulfurization method, dynamic desulfurization method, continuous plasticization method under normal pressure, etc. They have a common feature that they are all It belongs to chemical desulfurization and regeneration, which cannot fundamentally solve the shortcomings of high pollution, high energy consumption, and unstable product quality.
[0003] Although the use of microwave energy has high efficiency and low energy consumption, the heating method of microwave energy from the inside to the outside leads to a large temperature difference between the inside and outside of the rubber material, and the high internal temperature leads to excessive aging and agglomeration of the rubber powder. The desulfurization effect is not good.
As a physical desulfurization and regeneration process, ultrasonic has the advantages of high efficiency, environmental protection, and high product quality, but it has not been popularized and used, and it needs to be mixed and plasticized before production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A production process of environment-friendly high-strength recycled rubber, comprising the steps of:

[0047](1) Crush waste rubber into rubber powder with larger rubber particles, and the rubber powder with larger rubber particles is rubber powder with a particle size of 8mm;

[0048] (2) The crushed rubber powder in step (1) first enters the microwave desulfurization device for a regeneration treatment to control the microwave desulfurization

[0049] The microwave frequency of the sulfur plant is 1500MHz, the microwave power is 600W, the temperature is 170-230°C, and the reaction time is 6 minutes. Temperature 30-60°C, reaction time 4 minutes;

[0050] (3) After the fully desulfurized rubber powder is refined and shaped by a refiner, it is extruded and filtered to obtain usable recycled rubber raw materials.

Embodiment 2

[0052] A production process of environment-friendly high-strength recycled rubber, comprising the steps of:

[0053] (1) Crush waste rubber into rubber powder with larger rubber particles, and the rubber powder with larger rubber particles is rubber powder with a particle size of 8mm;

[0054] (2) The crushed rubber powder in step (1) first enters the microwave desulfurization device for a regeneration treatment to control the microwave desulfurization

[0055] The microwave frequency of the sulfur plant is 1500MHz, the microwave power is 600W, the temperature is 170-230°C, the screw speed is 300-600 rpm, and the reaction time is 8 minutes. The shell of the microwave desulfurization plant is equipped with two screws, which pass through the shell respectively. The two ends of the body are composed of a feed section, a discharge section and a mixing section in between, wherein the feed section and the discharge section are composed of intermeshing conveying screw parts rotating ...

Embodiment 3

[0058] A production process of environment-friendly high-strength recycled rubber, comprising the steps of:

[0059] (1) Crush waste rubber into rubber powder with larger rubber particles, and the rubber powder with larger rubber particles is rubber powder with a particle size of 8mm;

[0060] (2) The crushed rubber powder in step (1) first enters the microwave desulfurization device for a regeneration treatment to control the microwave desulfurization

[0061] The microwave frequency of the sulfur plant is 1500MHz, the microwave power is 600W, the temperature is 170-230°C, the screw speed is 300-600 rpm, and the reaction time is 6 minutes. The shell of the microwave desulfurization plant is equipped with two screws, which pass through the shell respectively. The two ends of the body are composed of a feed section, a discharge section and a mixing section in between, wherein the feed section and the discharge section are composed of intermeshing conveying screw parts rotating ...

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Abstract

The invention provides a production process of environment-friendly high-strength regenerated rubber. The production process comprises the following steps that (1) waste rubber is pulverized into rubber powder; (2) the pulverized rubber powder in the first step enters a microwave desulfurization device for primary regeneration treatment firstly and then enters an ultrasonic desulfurization devicefor secondary regeneration to achieve complete desulfurization; (3) the completely-desulfurized rubber powder is subjected to refining formation through a refiner, extruded and filtered to obtain an available recyclable rubber raw material. By means of the production process of the novel energy-saving environment-friendly regenerated rubber, the produced regenerated rubber has the advantages of being high in strength, stable in quality and the like.

Description

technical field [0001] The invention relates to the field of rubber processing, in particular to a production process of environment-friendly high-strength recycled rubber. Background technique [0002] With the rapid development of the automobile industry, the amount of waste tires is increasing, which constitutes a serious pollution to the surrounding environment. However, if waste rubber can be recycled reasonably, it will play a role in solving "black pollution" and alleviating the shortage of rubber resources in my country. Significance. Reclaimed rubber is the main way of comprehensive utilization of waste rubber in my country. There are many production methods, such as oil method, water-oil method, rapid stirring desulfurization method, dynamic desulfurization method, continuous plasticization method under normal pressure, etc. They have a common feature that they are all It belongs to chemical desulfurization and regeneration, which cannot fundamentally solve the shor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J11/10B29B7/48C08L17/00
CPCB29B7/007B29B7/488C08J11/10C08J2317/00Y02W30/62
Inventor 陈立奇
Owner 江苏华兴橡胶科技有限公司
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