1. High Moisture Content in Dried Material
Check feed moisture: If the feed moisture content is higher than specified, adjust the extruder's dehydration effect.
Condensate drainage: Check if the steam trap is clear and if the working pressure is sufficient to prevent condensate backflow.
Sealing: Check for steam leakage at the seal between the internal tube bundle and the end caps.
2. Abnormal Equipment Operation
Abnormal Start-up: Check if the power supply, motor, and control circuit are functioning correctly.
Excessive Noise: This may be due to a loose fan or worn bearings; tighten or replace the parts.
Improper Material Inflow/Outflow: Clean debris from the feed inlet to ensure smooth material flow.
3. Temperature and Energy Consumption Issues
Abnormal Temperature: Check if the thermometer, heating element, and fan are functioning correctly.
High Energy Consumption: This may be due to damaged insulation or aging components; repair or replacement is required.
4. Shaft Diameter Wear
Visual Inspection: Check the shaft diameter for obvious wear or scratches; replace the part if necessary.
5. Sealing and Leakage
Leakage Inspection: Inspect the entire equipment line, checking for leaks at flange connections, valves, shaft seals, etc.
Pressure Testing: Use a pressure gauge to check the inlet and outlet pressures of the dryer; abnormal pressure differences may indicate a malfunction.
Daily Maintenance Recommendations
Regular Inspection: Monitor operating parameters (temperature, pressure, current), and check appearance and sealing.
Standardized Operation: Avoid overloading, clean the equipment promptly, and extend its service life.
