Proper Operation and Maintenance of the Fertilizer Granulator in the NPK Fertilizer Production Line

The fertilizer granulator is the core equipment of the NPK fertilizer production line, directly determining the quality of fertilizer granules. Proper operation and standardized maintenance are crucial for ensuring the stable operation of the production line. Operation and maintenance must strictly follow the procedures to avoid equipment failure and product defects. Key Points for Proper Operation: Before starting the fertilizer granulator, check all components of the equipment to ensure the drum is free of jamming, the bearings are adequately lubricated, and the spray device is unobstructed. Calibrate the rotation speed (10-20 r/min) and hot air temperature (100-120℃). When feeding, the mixed raw materials should be added at a uniform speed, controlling the amount of binder sprayed to avoid excessive material causing drum blockage or insufficient material affecting granulation. During operation, observe the particle size and hardness in real time, and make timely fine adjustments to the rotation speed and feed rate. If any abnormality is found, stop the machine immediately for troubleshooting. Operating with a malfunction is strictly prohibited. Before stopping the machine, stop feeding first, continue running hot air for 5-10 minutes to clean the residual material inside the drum before shutting it down. Post-operation maintenance tips: After each shutdown of the fertilizer granulator, thoroughly clean the inner wall of the drum, spray nozzles, and feed inlet of any residual material to prevent clumping and corrosion. Check the bearing temperature daily, add lubricating oil regularly, and check the wear of the drum liner monthly; replace severely worn parts promptly. Conduct a comprehensive overhaul of the motor and reducer quarterly, tighten loose parts, and troubleshoot electrical faults. When the machine is to be shut down for an extended period, wipe it clean, apply anti-rust oil, turn off the power and air supply, and take measures to prevent dust and moisture.