Livestock manure, as a high-quality organic fertilizer source, can be converted into efficient organic fertilizers through scientific production processes, which not only reduces the environmental pressure of animal husbandry, but also provides green and healthy fertilizer options for agricultural production. The following is the processing technology flow of a general livestock manure organic fertilizer production line:
1. Collection and preprocessing
Raw material collection: Regularly clean the feces in the poultry and livestock house, and try to avoid mixing with other non organic substances as much as possible.
De clutter and screening: Use mechanical means to remove impurities such as plastics, stones, metal parts, etc. from feces, and preliminarily screen particles of different sizes.
Moisture regulation: Use a solid-liquid separator to adjust the moisture content of feces, generally maintained at 40% -60%, which is beneficial for subsequent fermentation.
2. Fermentation
Add auxiliary materials: According to the type of feces, add carbon based materials such as sawdust, straw, rice husk, etc. in appropriate amounts, adjust the C/N ratio to about 25:1, and accelerate microbial fermentation.
Inoculate fermentation agent: Add efficient fermentation bacteria such as EM bacteria, photosynthetic bacteria, etc., and start the fermentation process.
Temperature and flipping: Keep the stack temperature at 55 ℃~65 ℃, flip the stack every few days to ensure uniform fermentation and sufficient oxygen supply.
3. Post fermentation and aging
Maturity test: When the temperature of the heap begins to decrease, there is no odor, and the color becomes darker, it indicates that fermentation is basically completed.
Aging stage: further placed for several weeks to thoroughly decompose residual organic matter and improve fertilizer efficiency stability.
4. Crushing and mixing
Use a grinder to crush the fermented material for subsequent mixing and granulation.
Mix the crushed organic matter with mineral additives, trace elements, etc. to ensure nutritional balance.
5. Granulation
Choose a suitable organic fertilizer granulator, such as disc granulator, extrusion granulator, or drum granulator, and customize the particle size and shape according to your needs.
6. Drying and Cooling
Use a dryer or natural air drying to reduce the moisture content of the particles to below 10% for long-term storage.
The cooling process can be carried out by fan blowing or natural indoor cooling to ensure that particles are not damaged due to overheating.
7. Screening and packaging
Screen out oversized or undersized particles that do not meet the requirements to ensure uniform specifications of the finished product.
Use a professional packaging machine for quantitative packaging, label and store for sale.
Key Point Tips
The entire production process needs to pay attention to environmental hygiene and avoid secondary pollution.
Strictly follow national standards and local regulations to ensure the safety and compliance of organic fertilizers.
Consider installing waste gas and liquid treatment systems to achieve clean production and reduce the impact on the surrounding environment.
The construction of organic fertilizer production lines for poultry and livestock manure should be based on actual conditions and market demand, selecting appropriate technical routes and equipment configurations to achieve the goals of high efficiency, environmental protection, and economy. With the advancement of technology, continuous optimization of process flow and equipment updates can continuously improve the quality and production efficiency of organic fertilizers.
