Melt pump is one of the key equipment in the transportation, pressurization, and metering system of polymer melt, widely used in fields such as petroleum, chemical industry, chemical fiber, papermaking, sugar production, and light industry. However, in practical use, sometimes there may be problems with poor discharge of the melt pump, which not only affects production efficiency but also has a certain impact on product quality. Therefore, this article will analyze and explore the reasons for poor discharge of the melt pump, in order to help users better use the melt pump.
The reasons for poor discharge of the melt pump are multifaceted, mainly due to the following points:
1、 Melt viscosity too high
The viscosity of the melt is one of the important factors affecting the conveying performance of the melt pump. If the viscosity of the melt is too high, the flow resistance increases, which can easily cause poor discharge of the melt pump. At this point, the conveying effect can be improved by reducing the melt temperature, increasing pressure, or replacing the melt with lower viscosity.
2、 Pipeline blockage
Pipeline blockage is one of the common reasons for poor discharge of the melt pump. If there are impurities, welding slag, or other blockages in the pipeline, it will cause the flow of the melt to be blocked and the discharge volume of the pump to decrease. At this point, it is necessary to clean or replace the pipeline, and strengthen the sealing of the pipeline to prevent impurities from entering.
3、 Wear of rotating parts
When the rotating components of the melt pump, such as gears and bearings, wear and tear, can affect the normal operation of the pump, leading to poor discharge. At this point, it is necessary to inspect and replace worn rotating parts, and regularly maintain and upkeep the pump to extend its service life.
4、 Installation issues
The installation angle, height and other parameters of the melt pump also have a significant impact on its discharge performance. If the installation angle is incorrect or the height is not appropriate, it will cause poor melt flow and affect the normal operation of the pump. Therefore, when installing the melt pump, it is necessary to adjust the installation parameters according to the actual situation to ensure the normal operation of the pump.
5、 Improper operation
Improper operation is also one of the reasons for poor discharge of the melt pump. For example, if the inlet and outlet valves are not opened first when starting the pump, or if the inlet and outlet valves are not closed first when stopping the pump, it will cause excessive pressure fluctuations inside the pump, resulting in poor discharge. Therefore, when operating the melt pump, it is necessary to strictly follow the operating procedures to avoid discharge problems caused by improper operation.
For the above reasons, we can take corresponding measures to solve the problem of poor discharge of the melt pump. For example:
For the problem of high melt viscosity, it is possible to lower the temperature or increase pressure of the melt appropriately to reduce its viscosity, thereby improving the fluidity of the melt. Meanwhile, it is also possible to consider replacing the melt material with a lower viscosity.
For the problem of pipeline blockage, it can be solved by cleaning or replacing the pipeline. At the same time, it is also necessary to strengthen pipeline sealing during the production process to prevent the entry of impurities.
For the issue of wear and tear on rotating parts, it is necessary to regularly inspect and replace the worn parts. At the same time, it is also necessary to strengthen the maintenance and upkeep of equipment to extend its service life.
When installing the melt pump, it is necessary to adjust the installation parameters according to the actual situation to ensure the normal operation of the pump. At the same time, it is also necessary to regularly check and adjust parameters such as installation angle and height based on actual production conditions.
For issues of improper operation, it is necessary to strengthen employee training and education, improve their operational skills and safety awareness. At the same time, strict operating procedures and safety management systems need to be established to ensure the standardization and safety of operations.
In summary, the reasons for poor discharge of the melt pump are multifaceted and require analysis and judgment based on actual conditions. Taking corresponding measures for different reasons can effectively solve the discharge problem, improve the effectiveness and production efficiency of the melt gear pump. At the same time, it is also necessary to strengthen the maintenance and upkeep of equipment.
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