The pig manure organic fertilizer production line is a systematic process that transforms raw pig waste into high-quality organic fertilizer.
- Raw Material Collection and Pre-treatment
The process starts with collecting fresh pig manure while avoiding contamination. Since the collected manure usually contains high moisture and large chunks, it undergoes initial processing. A solid-liquid separator first removes liquid components (which can be used for liquid fertilizers), while the remaining solids get crushed into smaller particles using a grinder for easier handling.
- Fermentation Stage
The pre-treated manure then enters fermentation facilities. Microbial agents like Bacillus subtilis are often added to speed up decomposition. Common composting methods involve controlled pile fermentation. Operators maintain temperatures between 50-65°C using regular turning with compost turning machines. This ensures proper aeration for efficient aerobic fermentation. The process typically takes 15-30 days until the manure fully decomposes – indicated by dark brown coloration and transformation from foul odor to earthy aroma.
- Post-fermentation Processing
The matured compost requires further refinement. A crusher machines it into fine powder. For granular fertilizers, the powder enters a granulator (using disc granulators or press mathods) to form uniform pellets. These pellets then go through drying equipment to reduce moisture, followed by cooling machines.
- Screening and Packing
Cooled pellets pass through vibrating screens to remove oversized particles and excess powder. The final product gets weighed and packed into bags of various sizes using automated packing machines, ready for distribution.
In short, the process flow of the pig manure organic fertilizer production line is rigorous and scientific, which can effectively turn pig manure into treasure and produce high-quality organic fertilizer.