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The Problems and Solutions of core veneer dryer machine

17 March,2025
Problem

 

 Possible Causes

 

 How to Fix It

 

Temperature Drops Inside

1. Low steam pressure or too much moisture in steam
2. Poor insulation or too much fresh air coming in
3. Fan issues or damaged insulation4. Heater blockages or problems

1. Check steam pressure, clear any condensate, and check steam trap
2. Inspect insulation and seals, adjust airflow
3. Fix or replace the fan and insulation4. Clean and check heater blockages
Airflow Reduced

 

 1. Fan failure
2. Blocked heater
3. Spray box or nozzle blockages

 

 1. Repair or replace the fan
2. Clean debris from the heater
3. Clear out blockages in the spray box and nozzles

 
High Humidity Inside

 

 1. Drop in internal temperature
2. Insufficient dehumidification (especially at the inlet)
3. Steam leaks inside the system

 

 1. Check temperature and humidity inside
2. Open dehumidification valve more3. Inspect and repair steam leaks

 
Belt Misalignment

 

 1. Guide device failure
2. Belt wear or deformation
3. Misaligned rollers
4. Worn bearings or debris in the system

 

 1. Fix the belt guide device
2. Replace the worn belt
3. Check and adjust roller alignment
4. Replace worn bearings and remove debris

 
Panel Cooling is Insufficient

 

 1. Cooling fan airflow too low
2. High temperature of cooling air

 

 1. Repair the cooling fan
2. Lower the temperature of the incoming air

 
Roller Speed Fluctuates

 

 1. Transmission issues
2. Worn chain
3. Debris blocking roller or nozzle spaces4. Worn transmission gears

 

 1. Repair the transmission system
2. Replace or adjust the chain
3. Clear debris from rollers and nozzles4. Replace worn gears

 
Drying Efficiency Drops

 

 1. Hot air fan running the wrong way
2. Fan belt or bearing failure
3. Leaking steam system causing humidity buildup
4. Drainage issues with the steam trap5. Blocked heater filter

 

 1. Fix the fan direction
2. Adjust or replace the fan belt
3. Repair steam leaks
4. Inspect and fix the steam trap
5. Clean

 

Summary:

  • Temperature Problems: Usually caused by issues with steam pressure, the heater, the fan, or insulation. Check the steam system, fan, and insulation.
  • Airflow Problems: Often caused by blockages in the fan or heater. Clear any blockages and make sure the fan is working properly.
  • Humidity Problems: Related to dehumidification or steam leaks. Check the dehumidification system and steam seals.
  • Belt Problems: Caused by issues with the guide device, worn belts, misaligned rollers, or debris. Adjust or replace parts as needed.
  • Cooling Problems: Linked to cooling fan airflow or high inlet temperature. Inspect the fan and lower the air temperature if needed.
  • Transmission Problems: Caused by issues in the transmission system, worn chains, blocked rollers, or worn gears. Clear blockages and replace worn parts.
  • Efficiency Problems: Often related to fan direction, belt tension, steam leaks, or a blocked filter. Check the fan, adjust the belt, inspect the steam system, and clean the filter

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