The stable operation of compound fertilizer equipment is crucial for ensuring production efficiency, product quality, and operational safety. Daily maintenance requires a comprehensive and systematic approach to prevent component wear and tear, and avoid downtime due to malfunctions. The following are key considerations to lay a solid foundation for the long-term operation of the equipment.

Pre-operation checks should be thorough and meticulous to eliminate potential hazards. First, check all connecting parts of the equipment, such as bolts, nuts, and couplings, to ensure there are no loose or detached parts.  This is especially important for equipment with strong vibrations, such as NPK fertilizer granulators and crushers, where vulnerable connections should be tightened. Second, check the lubrication system, confirming that the oil level and quality meet standards and that there are no leaks.  Ensure sufficient lubrication for critical friction parts such as bearings and gears to reduce wear. Simultaneously, clean the equipment's feed and discharge ports and internal residual materials to prevent material clumping and blockage, which can affect equipment startup and operating efficiency.  Also, check electrical wiring, switches, and instruments to ensure secure connections and normal display.
During operation, continuous monitoring is essential to address abnormalities promptly. Strictly control equipment operating parameters, such as speed, load, and temperature, and strictly prohibit overloading to prevent motor overload and component deformation or damage. Closely observe the equipment's operating status, paying attention to any abnormal noise, vibration, odor, or leaks. If any problems are detected, stop the equipment immediately for inspection; do not operate with a malfunction. For parts susceptible to corrosion and wear, such as mixing paddles, screens, and conveyor belts, regularly observe their wear condition, and promptly clean any material residue adhering to the surface to prevent accelerated corrosion or component jamming.
Post-operation maintenance should be standardized and thorough to extend equipment lifespan. Thoroughly clean residual materials inside and outside the equipment, using specialized tools to clean accumulated material in hard-to-reach areas, preventing material from becoming damp, clumping, and corroding the equipment. Maintain the lubrication system, regularly changing the lubricating oil and cleaning the oil tank and filters to ensure a clean and unobstructed lubrication system. Check the wear degree of vulnerable parts, and replace severely worn parts that have reached their replacement standard to prevent minor wear from causing major malfunctions. At the same time, maintain detailed equipment maintenance records, documenting operating time, maintenance content, fault conditions, and treatment results to provide data support for future repairs.
Furthermore, a regular inspection system should be established.  Based on the frequency of equipment use and wear patterns, a customized maintenance plan should be developed, and the equipment should be completely disassembled and inspected regularly. Operators must be familiar with the equipment structure and maintenance essentials, follow standardized operating procedures, and avoid equipment damage due to improper operation, thus strengthening the protective measures for NPK compound fertilizer production equipment.