In bio-organic fertilizer production lines, the quality of compost ventilation directly affects fermentation efficiency and the final product. A good ventilation system supplies enough oxygen for microbial activity, promotes organic matter breakdown, and effectively regulates compost pile temperature and moisture.
1.Key Points of Ventilation Systems
Pipeline Layout: Use cross-shaped or well-shaped pipe designs to ensure even airflow. Space pipes 1-1.5 meters apart. Pipe diameter should be 20-30 cm, chosen based on pile size.
Airflow Control: Recommended airflow is 0.05-0.2 cubic meters per minute per cubic meter of compost. Adjust based on raw material properties. For example, manure composting needs higher airflow.
2.Smart Ventilation Control
Temperature Feedback: Install multiple temperature sensors. Start forced ventilation automatically when compost temperature exceeds 65°C. Reduce airflow when it drops below 45°C.
Oxygen Monitoring: Use online oxygen sensors to maintain oxygen levels within the ideal range of 10-18%.
3.Ventilation Management Practices
Turnover-Assisted Ventilation: Turn the pile with a compost turning machine every 2-3 days. Increase turning frequency during the initial fermentation phase (first 7 days).
Pile Height Control: Maintain a height of 1.5-2 meters. Piles that are too high increase ventilation resistance; piles that are too low have poor heat retention.
Raw Material Prep: Crush raw materials to 3-5 cm particle size and adjust moisture content to 50-60% to ensure smooth ventilation.
In summary, scientific system design, smart control, and careful management in bio-organic fertilizer production lines can significantly boost composting efficiency and lower costs.