Lab Scale TPE Thermoplastic Elastomers

Troubleshooting method of twin screw granulator

by：TENGDA 2022-10-17

The screw of the twin-screw granulator rotates normally, but no material is produced. On the one hand, this situation is due to the fact that a hard material such as metal has fallen into the screw groove, making it impossible to feed normally; on the other hand, it may also be that the hopper is not continuously fed. , so that the feed port is blocked by foreign matter. The solution is to increase the feed rate so that the screw feed can be stably and continuously.

The screw of the twin-screw granulator does not rotate, but the main motor rotates. The reason for this is that the transmission belt becomes loose, causing wear and slipping; or the safety key is disconnected or loosely dropped. The solution is to adjust the center distance of the drive belt of the plastic granulator to tighten the belt or replace the drive belt; if there is a problem with the safety key, check the safety key to determine the cause of the breakage, and replace the safety key. . If it is determined that there is a hard metal blockage, stop the operation of the plastic granulator immediately, remove the screw, and then remove the metal blockage.

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