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Improving the operation life scheme of plastic extrusion melt pump

Zhengzhou Batte teaches you to improve the life of the melt pump - Zhengzhou Batte melt pump Co., Ltd. will provide you with ten measures:

1. The melt pump body is operated at high temperature because of the plastic extrusion. Therefore, a hinge support should be set on the pipe for cold installation in order to prevent the pipe displacement after heating up.

2, the coupling must be heated after the pump body is heated to avoid the additional torque.

3, the pressure measurement point of the plastic extrusion melt pump exit should be interlocked to stop the alarm, otherwise, once the discharge pipe is blocked, it is easy to cause the damage of the pump body.

4. When the plastic extrusion melt pump starts, it can not be speeded up blindly when there is no pressure to form at the exit to prevent the premature damage of the shaft or bearing.

5. When cleaning the fluid, do not pump the cleaning liquid with the pump. The inner parts should be removed and the fluid is reinstalled after the end of the fluid, so as to avoid mixing the foreign body in the pump.

6. The temperature of the heat medium jacket of the plastic extrusion melt pump body is slightly lower than the heat medium temperature of the front and rear casing. Because of the decreasing function relationship between melt viscosity and shear rate, gear extrusion and bearing shearing will make melt temperature rise 3~5 degrees after plastic extrusion melt pump, and reduce the temperature of heat medium, so as to prevent melt degradation. Data show that by reducing the temperature of the bearing area, the bearing capacity of the bearing can be greatly increased, and no need to replace the large capacity pump. The output capacity of the gear pump can be increased by 50% only by increasing the rotational speed.

7, speed up to slow, do not make a sharp rise in front and back pressure, so as not to damage the bearings or make the melt blockage of the lubrication channel.

8, the melt filter behind the outlet of the plastic pump pump should be replaced regularly, and do not run in high pressure or pressure upper limit for a long time.

9, regular replacement of bearings can save the cost of maintenance. When it is found that the wear volume of the shaft or bearing is close to the thickness of the hardened layer, the shaft can be used again after grinding, and only the bearing is replaced, which can prolong the life of the plastic extruding melt pump shaft for 8~10 years.

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