working principle and advantages of twin-screw granulator

Time:2022-04-26

Twin screw granulators are commonly used because of their excellent charging characteristics and melting ability. Do you know the principle and advantages of twin screw granulator? Let’s take a look.

The principle of the function of the twin screw granulator.

First, the principle of construction.

For twin screw pelletizer extrusion process is the basic principle of an extruder screw in the cylinder rotation and forward to promote the principle of extruder screw construction is tightly around the central layer of the rotation of the coiled its purpose is to enhance the pressure, in the actual operation of the twin-screw pelletizer need to overcome a variety of problems, one is to get rid of the cylinder wall including solid particles, the second is the melt in the cylinder wall adhesion. The third is the frictional resistance of its internal structure logistics when the melt is pushed forward.

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Second, the principle of ambient temperature.

The principle of extrusion from the twin screw granulator is thermosetting, and thus the extrusion process needs to be heated to ensure that it can reach the appropriate ambient temperature, so where does the heat of melt come from? First of all, pounds into the material heating and barrel-shaped die heating equipment can function and be more critical in operation, in addition to the rotary extruder screw cylinder to get rid of heat is also a key heat source.

Third, the principle of speed reduction.

In most twin-screw pelletizer after adjusting the adjustment to complete the extruder screw efficiency shift, if the rate of reduction and product workpiece is not paired will consume too much kinetic energy, which is likely to require adjustment and replacement, the first speed reduction in efficiency between the link to enhance the pulley set, which enhances the extruder screw efficiency greater than the previous efficiency, which enhances the kinetic energy can be used to reduce the current and to avoid the occurrence of motor failure.

Product advantages of the twin screw granulator machine.

First, reduce cost.
Twin screw granulator scale completion can reduce a large number, which is more significant in the medium and large twin-screw granulator recycled plastic pellet equipment, blown film equipment, pipe fittings pipe extrusion equipment. Twin-screw granulator can be suitable for different customers’ special requirements to reduce the development progress of new products, developed countries’ twin-screw granulator has used contemporary electronic devices and electronic computer control system to automatically control the overall extrusion process of the melt pressure, ambient temperature and body temperature and other processing parameters.

Second, save energy.

In the twin-screw pelletizer in several links of the ambient temperature is also rotating in the process of carrying out heating, this type of method is also common, usually in the extruder screw ambient temperature to achieve the inevitable purpose after the ambient temperature of the die shell did not arrive, and thus, in this case, we are generally the extruder screw to carry out thermal insulation, followed by the ambient temperature of the die shell before carrying out operation gradually rise to set the ambient temperature, its characteristics Ineffective and environmental saving.

Third, it is not easy to deteriorate.

Because of the efficiency of the external thread groove and the orientation of the groove in the tooth combination area is reversed, the twin-screw granulator has a small gap at the tooth combination part, thus the tooth combination area has a relatively high division efficiency, and can scrape other piles of raw materials stuck to the screw, there is a good self-cleaning effect, the residence time of raw materials is relatively short is not prone to local dissolution and qualitative changes, and the mixing effect is much better than the single-screw extruder.

The related introduction is here first, I hope it will be helpful to you. To learn more about twin-screw pelletizer, please continue to follow us.

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