Pasta Dryer Operation Procedures and Equipment Maintenance Guidelines
The pasta dryer (面食干燥机) is essential equipment for removing moisture from pasta products after steaming or cooking. Whether using heat pump drying technology or hot air circulation systems, proper operation and maintenance are critical for ensuring consistent product quality, reducing energy consumption, and extending equipment service life.
Equipment Working Principle
The pasta dryer operates by passing heated air (or refrigerant cycle heat) over the pasta products, removing moisture through evaporation. The dryer consists of a heating system, air circulation system, control panel, conveyor system, and exhaust system. Temperature, humidity, and airflow are carefully controlled to achieve optimal drying results without causing noodle breakage or quality degradation.
Pre-Operation Checks
- Check that the drying chamber is clean and free from residual noodles or debris from the previous batch.
- Verify that the heating system (heating tubes or heat pump) is functioning properly.
- Inspect the hot air circulation system and fans for proper operation.
- Check the conveyor belt for proper tension, alignment, and signs of wear or damage.
- Verify that the temperature and humidity sensors are calibrated and functioning correctly.
- Test the exhaust system to ensure moist air is properly removed from the drying chamber.
- Check all electrical connections for security and signs of overheating or corrosion.
Operation Procedures
- Start the dryer and set the temperature according to the production requirements (typically 60–80°C for the front section, 40–60°C for the rear section).
- Adjust the airflow/wind speed appropriately — excessive airflow can cause noodle breakage.
- Regulate the conveyor belt speed so that the drying time is controlled at 1–2 hours (adjust based on noodle thickness and moisture content).
- Regularly check the moisture content of the dried noodles (target value: 8%–12%). If the requirement is not met, adjust the temperature or belt speed accordingly.
- Monitor the drying process continuously, checking for any signs of uneven drying, discoloration, or product quality issues.
Safety Precautions
- The area around the dryer must be kept clear of combustible materials.
- Fire suppression equipment should be available and regularly inspected.
- Operators should wear appropriate protective equipment when working near high-temperature equipment.
- Never open the drying chamber doors while the equipment is in operation to avoid heat loss and safety hazards.
- If abnormal temperature readings or equipment malfunctions are detected, immediately stop the machine and notify maintenance personnel.
Daily Maintenance
- After each production run, clean the interior of the dryer thoroughly, removing all residual flour, noodle fragments, and debris.
- Check and clean the filters, removing accumulated dust and particles.
- Inspect the heating tubes or heat pump components for proper function.
- Check the fans and ventilation system for proper operation.
- Wipe down the exterior surfaces using mild cleaning agents and soft cloths.
Periodic Maintenance
- Weekly: Lubricate all bearing points and check the tension of drive belts. Inspect all electrical connections. Test safety interlocks and emergency stop mechanisms.
- Monthly: Perform a comprehensive inspection of all mechanical components. Check the accuracy of temperature and humidity sensors using calibrated reference instruments. Inspect the heating system thoroughly.
- Every 6 months: Replace lubricating oil in gearboxes and bearing housings. Check the condition of the thermal insulation in the drying chamber. Inspect and clean the heat exchanger surfaces.
Long-Term Storage
- Clean the entire machine thoroughly, including all interior surfaces and components.
- Drain any water from the system (for heat pump models).
- Apply anti-rust treatment to all exposed metal surfaces.
- Cover the machine with a protective cover to prevent dust accumulation.
