Daily maintenance precautions for melt gear pump

As a key equipment in the long-term continuous production process, once the melt gear pump fails, it may cause the entire production line to stop production, causing huge economic losses to users. Therefore, the melt gear pump requires high reliability and long service life. In order to ensure the long-term continuous production needs of the melt gear pump, daily maintenance work is essential. So what should we pay attention to in daily maintenance?

1. The disassembly, cleaning, heating, cooling, start and stop of the pump should be strictly operated in accordance with the regulations to reduce unnecessary losses;
2. Attention should be paid to maintaining the stability of the inlet pressure of the booster pump so that it has a stable volumetric efficiency, which is conducive to the operation of the pump itself and the stability of downstream spinning or pelletizing;
3. For gear pumps with negative pressure inlet, the pressure at the stuffing box should be kept higher than the external atmospheric pressure to prevent external air from entering the gear pump and affecting product quality;
4. The temperature of the heat medium jacket and the pressure changes at the pump outlet and inlet should be checked frequently;
5. When the output increases, the current Record the output, speed, outlet pressure, inlet pressure, and current value, and compare the data before and after, and analyze them carefully to detect abnormalities as early as possible and deal with them in time;
6. There should be no abnormal vibration or abnormal sound during the operation of the melt gear pump, the motor current should be within the rated current, the output pressure should be stable, and the flow rate should meet the requirements;
7. A dedicated person is required to check the working condition of the melt gear pump in each shift and record the relevant operating parameters of the gear pump;
8. There should be an emergency stop button on site and in the main control room;

9. The gear pump should have an overload alarm and overload protection system.

Zhengzhou Gurnay melt gear pump and melt screen changer are widely used in large-scale chemical fiber, resin, rubber, biodegradable materials and other polymer polymerization and plastic extrusion production fields.