Overview of kettle melt discharge pump characteristics and applications

The reaction kettle melt pump is especially suitable for high temperature, high viscosity polymer melt reaction conveying which requires high output pressure, such as resin, chemical fiber and other industries. The following is a detailed description of its working principle and characteristics:

First, the reaction kettle melt discharge pump working principl

The working principle of reaction kettle melt discharge pump is based on the design of positive displacement pump, through the precision meshing of the master and slave gears, to realize the change of working volume, so as to complete the transport of melt. Specifically, when the gears rotate in the specified direction, the melt enters the grooves of the two gears in the feeding area. As the gears rotate, the melt is brought into the feeding zone from both sides. The re-engagement of the gears causes the melt in the grooves to be squeezed out of the discharge area and pressed into the outlet pipe. As long as the pump shaft rotates, the gears press the melt to the outlet side, so that high pressures can be achieved at the pump outlet.

Second, the kettle melt discharge pump features

High adaptability: kettle melt discharge pump can be used in high temperature (350℃), medium and high pressure (15MPa), high viscosity (20000Pa-s) conditions to meet specific process requirements.

Stable flow: small pressure and flow pulsation, can realize nearly linear output of flow, easy to control.

Good self-priming performance: it can be applied to the working condition where the inlet is vacuum (-0.05~-0.09MPa), and it can make the high viscosity medium sucked in smoothly under the vacuum condition, and it can complete the conveying and pressurizing of polymer materials.

Precise structure: the pump body is made of various materials, such as stainless steel, alloy steel, corrosion-resistant alloy, etc. The gear material also has a variety of options, such as nitrided steel, tool steel, etc., in order to adapt to different media and working environment. Meanwhile, its sealing structure includes melt dynamic seal + packing seal, high temperature resistant packing seal, etc., to ensure the safe and reliable operation of the pump. In addition, it is also characterized by high precision and long service life.

Wide range of parameters: the viscosity of conveying medium ranges from 1~20000Pa-s (1000~20000000cP), the inlet pressure ranges from vacuum (-0.05~-0.09MPa) to 5.0MPa, the outlet pressure ranges from 0~15MPa, and the operating temperature does not exceed 350℃.

With its unique working principle and excellent characteristics, the reactor kettle melt pump plays an important role in chemical, resin, chemical fiber and other industries.

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