Regeneration production method of scrap rubber

[0031] Embodiment one:

[0032] A waste rubber regeneration production method, comprising cleaning, crushing, impurity removal, screening, stirring, desulfurization, quenching, refining, and tablet forming, the tablet forming sequentially includes one plate pressing and two roll forming; the Plate pressing includes an upper plate and a lower plate, the outlet of the lower plate is connected to a roller press, the temperature of the lower plate is controlled at 95-115°C, the temperature of the upper plate is controlled at 105-125°C, and the upper plate is carried out every 10s at most Plate pressing, the moving speed of the lower plate is 10-30m/min, the length of the upper plate and the lower plate is 2-5m; the minimum distance between the upper plate and the lower plate is h during plate pressing, the first The distance h1 between the two rollers in the second rolling press satisfies the relationship: 0.5h <0.5h, the speed of the roller is 60~100m/min.

[0033] The desulfurization process includes heating and stirring, keeping the temperature between 107-113°C, slowly adding rubber powder, then adding regenerant and stearic acid, stirring for 6-10 minutes, adding rosin, white carbon black and softened oil, and stirring for 10-10 minutes Add filler in 13min, and then add water. The proportioning of described rubber powder, regeneration agent, stearic acid, rosin, white carbon black, softening oil, filler and water is as follows:

[0034] rubber powder

[0035] The regeneration agent is a mixture of thiophenol and cetyl dimethyl benzyl ammonium chloride, and the mixing ratio of the thiophenol and the cetyl dimethyl benzyl ammonium chloride is 2:8; The crushing includes coarse crushing and fine crushing. The coarse crushing process crushes the tires into blocks, and then removes some impurities and then performs fine crushing. The fine crushing is controlled between 15 and 25 meshes; the screen mesh of the filtration process is fine The degree is 10-20 mesh.

[0036] Embodiment two:

[0037] A waste rubber regeneration production method, comprising cleaning, crushing, impurity removal, screening, stirring, desulfurization, quenching, refining, and tablet forming, the tablet forming sequentially includes one plate pressing and two roll forming; the Plate pressing includes an upper plate and a lower plate, the outlet of the lower plate is connected to a roller press, the temperature of the lower plate is controlled at 95-115°C, the temperature of the upper plate is controlled at 105-125°C, and the upper plate is carried out every 10s at most Plate pressing, the moving speed of the lower plate is 10-30m/min, the length of the upper plate and the lower plate is 2-5m; the minimum distance between the upper plate and the lower plate is h during plate pressing, the first The distance h1 between the two rollers in the second rolling press satisfies the relationship: 0.5h <0.5h, the speed of the roller is 60~100m/min.

[0038] The desulfurization process includes heating and stirring, keeping the temperature between 107-113°C, slowly adding rubber powder, then adding regenerant and stearic acid, stirring for 6-10 minutes, adding rosin, white carbon black and softened oil, and stirring for 10-10 minutes Add filler in 13min, and then add water. The proportioning of described rubber powder, regeneration agent, stearic acid, rosin, white carbon black, softening oil, filler and water is as follows:

[0039] rubber powder

[0040]The regeneration agent is a mixture of thiophenol and cetyl dimethyl benzyl ammonium chloride, and the mixing ratio of the thiophenol and the cetyl dimethyl benzyl ammonium chloride is 3:7; The crushing includes coarse crushing and fine crushing. The coarse crushing process crushes the tires into blocks, and then removes some impurities and then performs fine crushing. The fine crushing is controlled between 15 and 25 meshes; the screen mesh of the filtration process is fine The degree is 10-20 mesh.

[0041] Embodiment three:

[0042] A waste rubber regeneration production method, comprising cleaning, crushing, impurity removal, screening, stirring, desulfurization, quenching, refining, and tablet forming, the tablet forming sequentially includes one plate pressing and two roll forming; the Plate pressing includes an upper plate and a lower plate, the outlet of the lower plate is connected to a roller press, the temperature of the lower plate is controlled at 95-115°C, the temperature of the upper plate is controlled at 105-125°C, and the upper plate is carried out every 10s at most Plate pressing, the moving speed of the lower plate is 10-30m/min, the length of the upper plate and the lower plate is 2-5m; the minimum distance between the upper plate and the lower plate is h during plate pressing, the first The distance h1 between the two rollers in the second rolling press satisfies the relationship: 0.5h <0.5h, the speed of the roller is 60~100m/min.

[0043] The desulfurization process includes heating and stirring, keeping the temperature between 107-113°C, slowly adding rubber powder, then adding regenerant and stearic acid, stirring for 6-10 minutes, adding rosin, white carbon black and softened oil, and stirring for 10-10 minutes Add filler in 13min, and then add water. The proportioning of described rubber powder, regeneration agent, stearic acid, rosin, white carbon black, softening oil, filler and water is as follows:

[0044] rubber powder

[0045] The regeneration agent includes thiophenol, magnesium oxide, calcium hydroxide and ferric chloride, and the ratio of each component is as follows: 4 parts of thiophenol, 3 parts of magnesium oxide, 3 parts of calcium hydroxide, 3 parts of ferric chloride; It includes two steps of coarse crushing and fine crushing. The coarse crushing process crushes the tires into blocks, and then removes some impurities and performs fine crushing. The fine crushing is controlled between 15 and 25 meshes; the fineness of the screen in the filtration process is It is 10-20 mesh.