Machining process for rubber special for radial tire

Abstract

The invention discloses a machining process for rubber special for a radial tire. According to the machining process, firstly, recycled rubber raw materials are divided into two grades according to evaluation results of enterprise quality detection standards and smashed into 40 cm x 10 cm x 8 cm-50 cm x 15 cm x 20 cm rubber blocks correspondingly, and the cleaned graded rubber raw materials are mixed according to the weight ratio being 1-3:1-3. The mixed rubber materials are subjected to primary smashing, flotation and stirring, secondary smashing and flotation and stirring, flotation needs larger than or equal to 20 min of time, then the mixed rubber materials are subjected to two-stage extrusion flotation, flotation needs larger than or equal to 12 min of time, and the rubber materials are made into a rubber ball shape. The rubber materials are subjected to one to four stage crepe treatment to be made into a continuous sheet shape, the thickness is 6-12 mm, and the rubber materials obtained after crepe treatment are subjected to granulation treatment to be made into rubber particles being 6-12 mm in diameter. The rubber particles are subjected to rubber drawing vibration treatment, dried at the temperature being 82-108 DEG C according to the standard being 4-6 t / h of the rubber materials, and then cooled to the room temperature. Through the machining process, the equipment impurity removing ratio is increased, the condition that the rubber structure is damaged due to over-machining is avoided, equipment arrangement of a production line is simplified, the total failure rate is lowered, rubber smashing quantity 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 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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