Environment-friendly production process of reclaimed rubber from tire

Abstract

The invention provides an environment-friendly production process of reclaimed rubber from a tire. The process comprises the following steps: (1) waste rubber is smashed into waste rubber powder; (2)the waste rubber powder and reclaiming auxiliary materials are jointly conveyed to a microwave reclaimer, are subjected to microwave desulfurization and reclaiming treatment in a pipe of the microwavereclaimer and move from a feed port of the pipe to a discharge port under the conveying and mixing actions of a conveying screw in the pipe, wherein the reclaiming auxiliary materials comprise a reclaiming activator, a reclaiming softener and lemon essential oil, the reclaiming activator accounts for 0.2%-1.1% of the mass of the waste rubber powder, the reclaiming softener accounts for 2%-30% ofthe mass of the waste rubber powder, and the lemon essential oil accounts for 2%-3% of the mass of the waste rubber powder; (3) the rubber powder subjected to desulfurization treatment is refined andformed by a refiner, extrusion and filtration are performed, and the reclaimed rubber from the tire is obtained. The novel production process of the reclaimed rubber from the tire is energy-saving andenvironmentally friendly, and the produced reclaimed rubber has the advantages of high strength, stable 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 tire regenerated 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. The recycling method commonly used in the industry is mechanochemical method, that is, firstly mix waste rubber powder with recycled auxiliary materials, and then mix the mixed waste rubber under high temperature and high pressure conditions. Powder and recycled auxiliary materials are regenerated for several hours, and the recycled rubber powder is di...

AI Technical Summary

Problems solved by technology

Its disadvantages are: under high temperature conditions, waste rubber and processing aids such as regenerants and softeners added in the regeneration process volatilize a large amount of toxic substances, causing pollution to the environment; the process is long and consumes high energy

[0003] In the prior art, although microwave energy is used with 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 excessive internal temperature leads to excessive aging and agglomeration of the rubber powder. The desulfurization effect is not good.