Manufacturing technology of regenerated rubber

Abstract

The invention discloses a manufacturing technology of regenerated rubber. The manufacturing technology comprises the following technological steps: (1) crushing; (2) softening; (3) cooling; (4) pressing. According to the invention, the operation is simple and the technology is ingenious; in the high-temperature and high-pressure process and under production conditions, sulfide bonds can be pulled open more quickly, elastic reticular structures in rubber powder can be fully reduced, and the number of generated cyclical sulfides is reduced, so that the regenerated rubber can be recovered to achieve the original processing performance, has higher abrasion resistance and corrosion resistance, and is long in service life.

Description

technical field

[0001] The invention relates to the field of rubber production, in particular to a manufacturing process of regenerated rubber. Background technique

[0002] At present, the production process of recycled rubber is as follows: firstly, various waste steel wire tires are sorted and processed, and after coarse crushing, medium crushing and fine crushing are carried out by a crusher, the rubber powder is loaded into the desulfurization tank; and then added into the desulfurization tank A certain amount of activator, softener and other auxiliary materials, close the feeding port; use the heat source to keep the raw materials in the desulfurization tank for 6 hours, after desulfurization, open the pressure relief valve to discharge the gas in the desulfurization tank. Under normal circumstances, it takes about 6 and a half hours from loading the desulfurization tank to discharging the gas in the tank. After the regenerated rubber powder is out of the tank, it is p...

Examples

Embodiment

[0013] Preferred embodiments of the present invention will be described in detail below.

[0014] A manufacturing process of reclaimed rubber in the present invention comprises the following process steps: (1), crushing: crushing the rubber into fine rubber powder in a crusher; (2), softening: placing the fine rubber powder in a desulfurization tank and adding Rubber activator and rubber softener, and heated in the heater; (3), cooling: put the rubber in the vulcanization pool for 2 to 3 hours; (4), pressing: put the obtained rubber into the refiner and open Compression molding in the mill. The number of times of crushing in the step (1) is three times, namely coarse crushing, fine crushing and fine crushing. The inside of the vulcanization pool is a zinc-calcium vulcanization solution with a concentration of 6-9%.

[0015] After the above process steps, regenerated rubber with good performance can be obtained, which is safe and environmentally friendly during the process. ...

technical field

[0001] The invention relates to the field of rubber production, in particular to a manufacturing process of regenerated rubber. Background technique

[0002] At present, the production process of recycled rubber is as follows: firstly, various waste steel wire tires are sorted and processed, and after coarse crushing, medium crushing and fine crushing are carried out by a crusher, the rubber powder is loaded into the desulfurization tank; and then added into the desulfurization tank A certain amount of activator, softener and other auxiliary materials, close the feeding port; use the heat source to keep the raw materials in the desulfurization tank for 6 hours, after desulfurization, open the pressure relief valve to discharge the gas in the desulfurization tank. Under normal circumstances, it takes about 6 and a half hours from loading the desulfurization tank to discharging the gas in the tank. After the regenerated rubber powder is out of the tank, it is p...

Examples

Embodiment

[0013] Preferred embodiments of the present invention will be described in detail below.

[0014] A manufacturing process of reclaimed rubber in the present invention comprises the following process steps: (1), crushing: crushing the rubber into fine rubber powder in a crusher; (2), softening: placing the fine rubber powder in a desulfurization tank and adding Rubber activator and rubber softener, and heated in the heater; (3), cooling: put the rubber in the vulcanization pool for 2 to 3 hours; (4), pressing: put the obtained rubber into the refiner and open Compression molding in the mill. The number of times of crushing in the step (1) is three times, namely coarse crushing, fine crushing and fine crushing. The inside of the vulcanization pool is a zinc-calcium vulcanization solution with a concentration of 6-9%.

[0015] After the above process steps, regenerated rubber with good performance can be obtained, which is safe and environmentally friendly during the process. ...