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Troubleshooting of twin screw extruder

Date:2020-04-03

The reason why the main motor of the twin screw extruder makes an abnormal sound is that the main motor bearings are damaged. One thyristor in the main motor thyristor rectifier circuit is damaged. Treatment method: replace the main motor bearing. Check the silicon controlled rectifier circuit and replace the silicon controlled element if necessary.
In the maintenance of equipment, ordinary twin-screw extruders often have to remove the heating and cooling system before pulling out the screw as a whole. The split twin screw is not needed, as long as a few bolts are loosened, the worm gear box handle device is lifted to lift the upper half of the barrel to open the entire barrel, and then maintenance is performed. This not only shortens the maintenance time, but also reduces the labor intensity. The development trend of twin-screw extruders in the world is to develop in the direction of high torque, high speed and low energy consumption. The effect of high speed is high productivity. Split-type twin-screw extruder belongs to this category, its speed can reach 500 rpm. Therefore, it has unique advantages in processing high viscosity and heat sensitive materials.

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