In the industrial processing of sand, the drying phase is crucial to ensure quality and efficiency. To maximize the performance of sand dryer machine, it is essential to follow a precise operational sequence. Below, we outline the step-by-step workflow for starting, running, and shutting down the equipment safely and effectively.

1. Preheating and Initial Operation

Before full-scale production begins, the drying machine must be properly preheated to ensure uniform heat distribution. Follow these steps:

• Start the main drum and ignite the furnace, allowing the system to warm up gradually.

• Wait 20–30 minutes until the drum becomes hot to the touch.

• Begin feeding a small amount of wet sand into the system, gradually increasing the input as the furnace temperature rises.

2. Correct Startup Sequence

To avoid equipment strain and ensure smooth operation, adhere to this startup order:

1. Ignite the furnace (activate the blower and induced draft fan).

2. Start the main drum and allow it to heat evenly.

3. Once the drum is sufficiently heated, turn on the vibrating screen.

4. Activate the dry sand conveyor belt.

5. Engage the wet sand conveyor belt.

6. Finally, start the disc feeder and begin feeding wet sand for drying.

3. Proper Shutdown Procedure

To prevent damage and maintain equipment longevity, follow this shutdown sequence:

1. Stop the disc feeder (halt the inflow of wet sand).

2. Turn off the wet sand conveyor belt.

3. Once all remaining sand has been processed, shut down the blower and main drum.

4. Deactivate the dry sand conveyor belt.

5. Power down the vibrating screen.

6. Finally, switch off the induced draft fan.

4. Troubleshooting During Operation

• If the dry sand conveyor belt discharges damp or insufficiently dried sand:

• Reduce the output of the disc feeder (adjust sand input).

• Check furnace temperature—if too low, increase heat output.

Safety Reminder

• Never touch moving parts (drying drum, conveyor belts, etc.) during operation to avoid injury.

• Always monitor temperature and sand flow to maintain optimal drying conditions.

By following this structured workflow, operators can enhance efficiency, prolong equipment life, and ensure workplace safety. Proper sequencing is key to achieving high-quality dried sand with minimal downtime.

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