As a core piece of equipment in a fertilizer production line, the scientific use of a rotary drum granulator directly affects product quality, production efficiency, and equipment lifespan. Mastering standardized operating methods and maintenance techniques is key to achieving efficient and stable production.
Equipment selection is the prerequisite for scientific use. The appropriate drum diameter, length, and rotation speed parameters must be selected based on material characteristics (moisture content, viscosity, particle size) and production capacity requirements. For example, highly viscous materials should be processed using a model with a slightly lower rotation speed and a wear-resistant rubber lining to prevent material from sticking to the drum wall; while loose materials can have their rotation speed appropriately increased to enhance the granulation effect. Improper selection can easily lead to uneven particle size, excessive equipment load, and other problems, affecting production continuity.
Standardized operating procedures are crucial. Before starting the machine, a comprehensive inspection is necessary: confirm that the drum rotates flexibly, the lubrication system is normal, and the safety protection devices are intact, while also cleaning any residual material inside the drum. After startup, follow the principle of “no-load start-up and gradual feeding.” Once the equipment is running stably, feed the material and binder evenly according to the specified ratio, strictly controlling the material moisture content within a suitable range (usually 20%-35%). Monitor the pellet formation in real time during operation, adjusting the rotation speed, feed rate, or binder ratio to ensure the pellet size meets standards and avoid clumping or excessive breakage.
Daily maintenance is crucial. After each day’s operation, promptly clean the inner wall of the drum and the feed and discharge ports to prevent solidification that could affect subsequent operations. Regularly check bearing temperature and lubricating oil level, changing the lubricating oil every 500 hours of operation to extend the life of the transmission system. Quarterly inspect the drum wall thickness and liner wear; promptly repair or replace any abnormalities to prevent equipment failure and downtime.
Safety is paramount. Operators must wear protective equipment and are strictly prohibited from approaching the drum edge or reaching in to clean materials while the equipment is running. If abnormal noises or vibrations occur during operation, immediately stop the machine for inspection and troubleshooting before restarting. Simultaneously, establish equipment operation logs to record start-up times, malfunctions, and maintenance details, providing data support for scientific management.
The scientific use of rotary drum granulators requires integrating selection, operation, maintenance, and safety to ensure both production efficiency and product quality, while maximizing equipment lifespan and creating greater economic benefits for the enterprise.