Optimizing the process of organic fertilizer production line to ensure product quality can start from the following key aspects:

1. Optimize fermentation process: Fermentation is the core link of organic fertilizer production, which directly affects product quality. Optimization of fermentation process can significantly improve product quality and production efficiency.

2. The use of advanced fermentation technology: such as high temperature aerobic fermentation or anaerobic fermentation technology, these technologies can improve the fermentation effect and yield.

3. Improve the granulation process and choose the right organic fertilizer granulator: The granulation process is crucial to the appearance and application effect of organic fertilizer. Select the appropriate granulator according to the material characteristics and production requirements, such as disc granulator or churn granulator.

4. Optimize the granulation parameters: adjust the water content, binder dosage and granulation temperature and other parameters to improve the molding rate and strength of the particles and reduce the defective rate.

5. Strengthen quality control to establish a strict quality inspection system to ensure that the quality of each production link meets the standard.

6. Equipment upgrade and maintenance: The performance of organic fertilizer equipment directly affects production efficiency and product quality. Upgrade and retrofit existing equipment to improve its performance and yield.

7. Select high-performance equipment: Select high-performance and high-reliability equipment based on production requirements.

8. Regular maintenance: Regular maintenance and maintenance of the equipment to ensure that the equipment is in good running condition.

9. Environmental protection measures: organic fertilizer production process will produce certain pollutants, environmental protection measures can reduce the impact on the environment.

Through the above measures, we can effectively optimize the organic fertilizer production line process, ensure product quality, improve production efficiency, and reduce the impact on the environment.