Proper Operation and Maintenance of the Fertilizer Crusher in the NPK Fertilizer Production Line
The fertilizer crusher is a key piece of equipment in the raw material pretreatment of the NPK fertilizer production line. It is mainly used to crush lumpy raw materials (urea, monoammonium phosphate, etc.). Its standardized operation directly affects the fineness of the crushed raw materials and the subsequent granulation effect. Routine maintenance can extend the service life of the equipment.
Key Points for Proper Operation: Before starting the machine, check whether the fertilizer crusher blades and hammers are intact, whether the screen is damaged, and confirm that the equipment is properly grounded and has no loose parts. Before feeding, remove stones, metal, and other impurities from the raw materials to avoid damaging the blades. Feed the raw materials at a uniform speed, controlling the feeding speed, and strictly prohibiting excessive feeding to avoid equipment blockage. Observe the operating sound of the equipment during operation. If abnormal noise or excessive vibration occurs, stop the machine immediately for inspection. Do not open the machine cover for operation. After stopping the machine, wait until the blades have completely stopped rotating before cleaning the residual material inside the machine and the screen.
Post-Operational Maintenance Tips: After each use, clean the residual powder inside the fertilizer crusher, wipe the surface of the equipment, check the wear of the blades, and grind or replace them in time. Check bearing lubrication weekly and add special lubricating oil to prevent dry friction from damaging the bearings. Check screen aperture monthly; if blockage or damage is found, clean or replace it promptly to ensure the grinding fineness meets the standard. Conduct a complete disassembly and overhaul of the equipment every six months, tighten all connecting parts, and check the motor’s operating status to ensure long-term stable operation of the equipment.