Key factors for stable operation of a npk granualtor include the following:

1. Raw material characteristics: The composition and stability of the raw materials directly impact the granulation results. The physical and chemical properties of different raw materials vary significantly, necessitating strict control of the raw material ratio and quality. Raw material humidity is a key factor influencing granulation results. Excessively high humidity causes the material to adhere to the equipment, affecting granulation efficiency; excessively low humidity prevents material agglomeration, reducing granulation efficiency.

2. Equipment design and maintenance: Selecting high-quality fertilizer equipment materials and sophisticated processing techniques can improve equipment stability and durability. Regularly inspect key equipment components to ensure proper operation. Also, clean the equipment regularly to prevent material buildup that may affect granulation results.

3. Process parameter optimization: Adjust granulator parameters, such as temperature, pressure, and nozzle speed, based on product requirements to achieve the desired granule shape and size.

4. Operating environment and personnel skills: Ensure the stability of the operating environment to prevent environmental factors such as temperature and humidity from affecting equipment operation. Operators must possess sufficient skills and experience to adjust operating parameters promptly based on equipment performance.

5. Automation and Intelligent Control: Automated control systems can automatically adjust equipment operating parameters based on real-time data, improving production efficiency and product quality.

By comprehensively considering the above factors, the operational stability of the NPK granulator can be effectively improved, ensuring smooth production and consistent product quality.