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Mixer rotor significantly improve the cooling effect of the rotor

Hit:      Date:2012-02-09

Mixer rotor compared with the ordinary rectangular rotor structure, the two edges of the different rotors, respectively, starting on both sides of the rotor, the short edge with the long edge a start on the same side of the short edge can clean resistant grinding plate, the long edge and short edge of the spiral angle is between 35 ~ 45 °, this arrangement so that the axial force on the rotor to reach equilibrium, the formation of mean force shear force on the rotor thrust is very small, and ultimately rubber are consistent force the mixing effect.

 

The long edge of the mixer rotor does not extend to the ends of the rotor, another runner between the edge and side panels, this first-class Road further optimization of the mixing characteristics and flow distribution of the increase in mixing strengthened. Axial groove, and thus close to the mixing chamber at both ends to form a strong logistics, making the rubber can not be formed between the rotor cylinder and the extreme corner of the gathering, there was no such seals EHV On the contrary, the plastic material in the flow channel will also be the role of the shunt, it will be rubber shunt into two parts, the rotor edge top and subjected to shear between the mixing chamber, and partly by constantly pinch refining and turn pound, so that uniform mixing effect, greatly improving the uniformity of the plastic material.

 

Mixer rotor due to the long edge does not impose high pressure, the fill factor can be increased, and more rubber refining mixer. From the geometric structure of the ordinary rectangular rotor, it can produce more energy, but these energies are mainly used to rise the temperature of the rubber, while the rotor is able to maintain a lower mixing temperature, so in a fairly long period of time can produce a high shear force, and curing system were not distributed faster. Recently, in order to further improve the cooling effect of the rotor, we designed the new rotor a with a spiral groove forced circulation cooling structure, this structure is not only the inner surface of the rotor can be machined, and streamlines the casting mass and heat transfer coefficient, and casting parts in the rotor sudden edge along the direction of rotation of the cooling water, and significantly improve the cooling effect of the rotor.

 

The new mixer rotor generated enhancements to reduce the cooling effect, making the thermal characteristics of the rubber has been greatly optimized, and thus fully meet the requirements of the final refining of radial tire rubber. Mixer rotor of the above advantages, it can fully meet a variety of plastic materials mixing process, especially the radial tire rubber mixing process requirements, the performance of the mixer on a new grade. Meanwhile, the promotion of the use of objective existence, will also make the quality of our tires on a new level, to bring good economic and social benefits of China's rubber industry, especially the development of the radial tire.