A kind of processing method of radial tire special rubber

Abstract

The invention discloses a processing method of rubber special for radial tires. The method includes the steps that recycled raw rubber is divided into two grades according to assessment results of quality detection standards of enterprises and is crushed into rubber blocks with the sizes ranging from 40cm*10cm*8cm to 50cm*15cm*20cm, and the purified graded raw rubber is mixed according to the weight ratio of 1-3 to 1-3; the mixed rubber sequentially undergoes primary crushing, floatation stirring, secondary crushing and floatation stirring with the total floatation time greater than or equal to 20 minutes, then undergoes two-stage extrusion flotation with the floatation time greater than or equal to 12 minutes and finally forms micelles; the rubber undergoes crumpling treatment from the stage one to the stage three and undergoes primary granulating treatment, and manufactured rubber particles are made into rubber sheets with the thickness being 6-12 mm through crumpling treatment from the stage four to the stage six and then are made into rubber particles with the diameters being 6-12mm through secondary granulating treatment; and the rubber particles undergo rubber pumping and vibrating treatment, then are dried at 82-106 DEG C according to the 4-6 t / h standard of the rubber and finally are cooled to indoor temperature. According to the method, the purification rate of equipment is increased, the phenomenon that the structure of the rubber is damaged due to excessive processing is avoided, the equipment layout of a production line is simplified, the total failure rate is lowered, the amount of rubber scraps is reduced, and the production efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of natural rubber processing, and in particular relates to a processing method 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 crush...

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 for energy saving and emission reduction and promotion of circular economy. Based on this, the present invention aims to provide a processing method 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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