Abstract:

 In view of the hidden danger of explosion caused by poor grounding, static accumulation and instantaneous discharge in aluminum dust extraction pipeline, a real-time electrostatic testing technology for deposited dust by voltage scanning electrostatic method in aluminum dust extraction pipeline was proposed, and its measurement principle and key influencing factors were analyzed and studied. The results showed that the electrostatic potential of dust extraction pipeline can be monitored in real time by using voltage scanning electrostatic detection technology, and the test error is less than 10%, which can serve as a safety warning for the static electricity carried by aluminum dust extraction pipeline.

Key words: electrostatic detection, voltage sweep, aluminum powder, pipeline static electricity；dust extraction pipe