The vacuum feeder is a dust-free conveying device essential in powder industry production, used for material transport across various stages. Due to high frequency and extended operation, faults may inevitably occur after prolonged use. As technical personnel, timely problem-solving is crucial to avoid delays in production. Today, let’s discuss how to troubleshoot conveying faults in vacuum feeders.

To diagnose faults in a vacuum feeder, it’s essential to first understand its working principle. As a type of pneumatic conveying equipment, the vacuum feeder utilizes negative pressure airflow to transport materials through sealed pipelines.

1. Check the Power Source
In the vacuum feeder’s touchscreen manual test interface, start the vacuum pump and observe whether the vacuum gauge and pressure sensor function normally. Verify whether the vacuum level and airflow meet the required standards.

If the vacuum level exceeds normal values, it indicates blockage in the conveying pipeline.

If the vacuum level is below normal values, it suggests air leakage in the system.

2. Check Pipeline Sealing
Start the vacuum feeder and first check whether there is suction at the feed inlet.

If there is no suction, inspect for blockages.

If suction is weak, check whether the filter element is clogged or if there is air leakage in the pipeline.

3. Inspect the Butterfly Valve Sealing Rings
As moving parts of the feeder, butterfly valves may wear over time. Air leakage can lead to low vacuum levels, slow material suction, or complete failure to suction.
Open the feeder cover and observe whether the sealing rings are worn. If wear is detected, replace them promptly.

4. Verify the Operation of the Hygienic-Grade Vacuum Feeder
Based on the working principle of the feeder, systematically check whether all butterfly valves are functioning correctly. Ensure the compressed air pressure is sufficient.
This scenario is rare, but do not rule out the possibility of impurities in the compressed air causing damage.