Fault Analysis Of Three-screw Extruder

• How to deeply analyze these faults?

  When using a three-screw extruder, it is inevitable to encounter some machine failures. If the machine fails, we need to know how to solve these problems. How to deeply analyze these faults? It is mainly through the three aspects of abnormal operation of the screw, material from the vent hole, and the host not rotating or suddenly stopping. In addition, in the article, Nanjing COLOWE Chemical Machinery Co., Ltd. also introduced to everyone the differences of the three-screw extruder in detail. Come and explore the truth in the article!
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  Three-screw extruder

• Common fault analysis of three-screw extruder:

  1. Abnormal operation of the screw of the extruder

  Reason: Unstable feeding into the hopper; Obstruction or bridging at the feeding port; A hard metal object has fallen into the screw groove, blocking the screw groove and unable to feed normally.

  Solution: Increase the feeding speed of the Common fault analysis of three-screw extruder: to maintain stable feeding; Remove the foreign objects at the feeding port and eliminate bridging; If it is determined that a metal foreign object has fallen into the screw groove, stop the machine immediately and disassemble the screw to remove the metal foreign object.

  2. Material at the exhaust port

  Reason: A large amount of impurities are mixed in the raw material; The feeding speed of the three-screw extruder is too fast; The screw of the extruder is not stable in extrusion because the plasticizing temperature is not enough due to unstable extrusion.

  Solution: Clean the raw material or replace the filter before feeding; Reduce the feeding speed to ensure stable extrusion of the screw; Increase the plasticizing temperature of the three-screw extruder.

  3. Difficulty in rotating the main motor or sudden stop

  Reason: The power supply of the main motor of the three-screw extruder is not connected; The heating time is not enough, or one of the heaters is not working, causing the motor torque to be too large and overloaded. Solution: Check if the main circuit of the triple screw extruder is working, check the temperature display for each section to determine the preheating time of the machine, and check if any heaters are damaged or poorly connected.

Next time, the editor will tell you about: the difference between three-screw extruders. If you need it, contact me. The contact number is +8613390770089.