Processing technology for special rubber for radial tire

Abstract

The invention discloses a processing technology of special rubber for radial tires. The process first divides the recovered rubber raw materials into two grades according to the evaluation results of the enterprise quality inspection standards, and breaks them into rubber blocks of 40cm×10cm×8cm~50cm×15cm×20cm respectively, and divides the graded rubber raw materials after removal of impurities by 1 ~3:1~3 weight ratio mixing. The mixed rubber material is crushed in the first stage, floated and stirred, and the secondary crushed, floated and stirred, the floating washing time must be ≥ 20min, and then the mixed rubber material is subjected to two-stage extrusion floating washing, and the floating washing time must be ≥ 12min, Make the rubber into a gelatinous mass. The rubber material is treated with one to four stages of creping to make the rubber material into a continuous sheet with a thickness of 6-12mm, and the creped rubber material is granulated to make rubber particles with a diameter of 6-12mm. The colloidal particles are pumped and vibrated, dried at 82-108°C according to the standard of 4-6t / h rubber material, and then cooled to room temperature. The process improves the impurity removal rate of the equipment, avoids damage to the rubber structure due to excessive processing, simplifies the equipment configuration of the production line, reduces the overall failure rate, reduces the amount of crushed rubber, and improves production efficiency.

Description

technical field [0001] The invention belongs to the technical field of natural rubber processing, and in particular relates to a processing technology of special rubber for radial tires. Background technique [0002] The existing production technology of radial tires has the following shortcomings and deficiencies: 1. The structure is complex, the production line is long, and the equipment failure rate is high. The existing rubber production line for radial tires includes two crushers, one extrusion machine, ten crepe machines, three granulators, two rubber pumps, five floating washing tanks, one drying system, Two hydraulic balers and a metal detector constitute a relatively complex production line. When all production equipment is turned on at the same time, the failure rate increases accordingly. 2. The production cost is high and the work efficiency is low. When the existing production line is started, a total of 8 people are required to be deployed from single-stage c...

AI Technical Summary

Problems solved by technology

[0002] The existing production process of radial tires has the following shortcomings and deficiencies: 1. Complex structure, long production line, high equipment failure rate

The existing rubber production line for radial tires includes two crushers, one extrusion machine, ten crepe machines, three granulators, two rubber pumps, five floating washing tanks, one drying system, Two hydraulic balers and a metal detector constitute a relatively complex production line. When all production equipment is turned on at the same time, the failure rate increases accordingly.

2. High production cost and low work efficiency

When the existing production line is started, a total of 8 people are required to be deployed from single-stage crushing to rubber loading. The labor cost is relatively high. Due to the large number of equipment and complex configuration, the maintenance and repair costs are high. If any equipment in the production line Failure will lead to production stoppage, and the overall failure rate of equipment will increase and work efficiency will be reduced

3. High energy consumption

The sum of the main equipment power of the existing production line is 1826KW, and at least 1826 kwh of electricity must be consumed per hour during production, and some crepe machines are in an idling state during equipment operation, which does not have the effect of removing impurities, and some crepe machines have little effect of removing impurities , most of them are in the state of doing useless work, which invisibly increases power consumption

In addition, equipment such as crushers, extruders, crepe machines, and granulators require sufficient spray water for normal operation, resulting in increased water consumption

4. Too much crushed rubber is produced, which increases the labor force and increases more energy consumption in a disguised form

In the existing production process, each process point will produce crushed rubber, and the long process line and complicated equipment will greatly increase the amount of crushed rubber produced. When recycling, it needs to be re-washed, crepe, etc., which makes labor and electricity consumption Increased costs

[0003] To sum up, the existing complex production technology is far from being able to adapt to the new demands of market development on energy saving and emission reduction, and promotion of circular economy. Based on this, the present invention aims to provide a processing technology for special rubber for radial tires, with Reduce the complexity of equipment configuration on the production line, improve equipment start-up rate and utilization rate, reduce direct labor costs and equipment maintenance costs, reduce power and water consumption, improve production efficiency, and reduce costs and increase efficiency for enterprises

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