Daily operating procedures for pressure spray dryers

Prolonged operation or improper handling can cause material buildup in parts of the pressure Spray Dryer, affecting normal operation. In such cases, operation must be stopped for cleaning. To clean the material buildup inside the drying tower, open the cleaning door and use a long-handled broom to sweep away the material at the bottom of the funnel. Open the discharge valve and rinse the tower with tap water. Similarly, to remove dust from the cyclone separator, open the separator, sweep away the material with a broom, and rinse with water if necessary. For cleaning the bag filter, turn on the control switch and tap continuously, then open the cleaning door and tap the bag filter. Finally, replace the filter bag. For cleaning the slurry pipeline system, open the drain valve of the bidirectional filter, clean the filter screen and pipeline, then turn on the feed pump, replacing the feed with water, and clean the pump pipe, pressure stabilizer, and pipelines.

After a period of operation, the spray granulation dryer needs necessary inspection and maintenance. For the feeding system, check the filters, pipelines, valves, nozzles, etc., for blockages, clean them regularly, and check nozzle wear for timely replacement. Check the feed pump for oil leaks, ensure proper pressure testing, and verify the oil level. For the blower, check for insufficient oil and overheating in the shaft and bearings, and observe for vibrations and noise. Clean the fan blades and perform balance adjustments if necessary. For the heater, check the heat pipes for proper functioning, and clean the filters at the oil pipes, oil pump, and oil nozzles if necessary. Additionally, pay attention to any overheating, vibrations, or abnormal noises in the motors, and ensure the instruments and electrical components in the control cabinet are functioning correctly.