How to choose the extruder melt pump for the waste plastic recycling production line?

The selection of extruder melt pump for waste plastic recycling production line is an important link related to production efficiency and quality. To ensure that the selected melt pump can meet the needs of the production line, we need to consider multiple aspects comprehensively.

Firstly, we need to pay attention to the melt characteristics of the melt pump. During the recycling process of waste plastics, the viscosity, temperature, corrosiveness, toxicity, and particle content of their melt will change. Therefore, when choosing a melt pump, it is necessary to ensure that the pump can withstand these conditions and choose the appropriate pump type and material to adapt to these characteristics.

Secondly, flow rate and pressure requirements are the basic parameters for selecting melt pumps. According to the requirements of the production process, we need to determine the required melt flow rate and pressure. The melt pump needs to provide sufficient flow and pressure to meet the needs of the production line and ensure a stable production process.

In addition, the type and structure of the pump are also key factors in the selection. Based on the characteristics of the waste plastic recycling production line, we can choose suitable pump types, such as extrusion melt pump, reaction kettle melt pump, pipeline melt pump, etc. At the same time, it is also necessary to consider the structure of the pump, such as inlet and outlet dimensions, sealing methods, bearing types, etc., to ensure compatibility between the pump and the entire production system.

In addition, accuracy and stability requirements are also factors to consider when selecting a melt pump. For processes that require precise control of melt flow rate and pressure, we need to choose a melt pump with high precision and stability to ensure the stability of the production process and the reliability of product quality.

When choosing a melt pump, we also need to consider its application scenarios. For example, in the recycling process, the melt pump can crush, clean, and classify waste plastics from different sources, and then convert plastic particles into a molten plastic fluid through the melt pump, which is transported to the extruder. During this process, the melt pump needs to provide stable melt flow and pressure to ensure the efficiency of the extruder.

Meanwhile, the melt pump also has other functions in the waste plastic recycling production line. For example, it can evenly mix different types of plastic particles, making the composition of extruded products more uniform. In addition, the melt pump can also reduce the temperature of the extruded product, avoiding problems such as deformation or production of bubbles caused by overheating of the product.

When choosing a melt pump, we also need to pay attention to its technical parameters. For example, the viscosity of the conveying medium, suction pressure, output pressure, allowable pressure difference, operating temperature, heating method, and flow range are all important considerations.

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