2025/06/17
|
Equipment |
Main Function |
Operating Temp |
Key Parameters |
|
Dryer |
Reduce moisture (from 30-40% to 10-15%) |
80-120°C |
Hot air temp, retention time |
|
Cooler |
Rapid cooling to ambient+5-10°C |
25-35°C |
Air volume, cooling efficiency |
Note: This is the basic process flow for organic fertilizer production.
Additional steps like screening, coating, and packaging may be included in full-scale production.
|
Process Stage |
Key Equipment |
Parameters |
Duration |
|
Mixing |
Horizontal mixer |
Moisture 40-50% |
10-15 min |
|
Granulation |
Disc granulator |
Particle size 2-4mm |
5-10 min |
|
Drying |
Rotary dryer |
80-120°C |
20-30 min |
|
Cooling |
Counter-flow cooler |
Final temp 25-35°C |
10-15 min |
Typical organic fertilizer production process flow (Mixing → Granulation → Drying → Cooling)
1. Process Connection: Materials must be cooled immediately after drying to prevent caking
2. Energy Utilization: Modern systems often recycle cooling air for dryer preheating
3. Quality Assurance: Inadequate drying reduces cooling efficiency, while delayed cooling affects packaging
4. System Balance: Capacity must match (typically 1:1 ratio)
· Dryer Selection: Rotary dryers for large-scale, belt dryers for heat-sensitive materials
· Cooler Selection: Counter-flow coolers offer 15-20% higher efficiency
· Integrated Control: Prefer systems with coordinated drying-cooling control
· Heat Recovery: Can reduce total energy consumption by 25-30%
References:
1. International Organic Fertilizer Association "Organic Fertilizer Equipment Guide" (2023)
2. Zhang et al. "Energy optimization in fertilizer drying and cooling systems" (2021)