The process of processing manure and organic fertilizer in a small-scale organic fertilizer production line mainly includes several key steps: raw material pretreatment, fermentation, post-treatment, and finished product packaging. Below is a detailed introduction to this series of operational procedures:

1. Raw material pretreatment

Collection and classification: Firstly, it is necessary to collect animal manure from the farm, such as chicken manure, pig manure, or cow manure. For feces containing a large amount of padding or feed residue, they should be classified and screened first to remove impurities.

Crushing and mixing: Using a grinder to break down feces into small particles can help speed up fermentation. Afterwards, the crushed feces are mixed with other auxiliary materials such as straw powder and sawdust, and the C/N ratio (carbon nitrogen ratio) is adjusted to promote microbial activity and improve fermentation efficiency.

2. Fermentation

Fermentation method: Small organic fertilizer production lines often use a stack fermentation method, which involves stacking pre treated raw materials into strips and regularly flipping them through a self-propelled turner to maintain sufficient oxygen supply and uniform temperature. Fermentation tanks can also be used for closed fermentation, making it easier to control temperature and humidity.

Inoculate fermentation bacteria: Add specialized fermentation agents, such as high-temperature cellulose bacteria and fungi, to the raw materials. They can quickly decompose organic matter, produce high temperatures, and kill pathogens and weed seeds.

Fermentation cycle: The fermentation cycle varies depending on the conditions and generally lasts from 7 days to several weeks. During the fermentation process, the internal temperature of the raw materials can rise to 50 ℃~70 ℃, which helps with sterilization and maturation.

3. Post processing

Stacking and cooling: After fermentation is complete, use a turner to pile up the fermented raw materials and gradually cool them to room temperature.

Granulation: The cooled organic fertilizer is processed into granules by a granulator for easy storage and transportation. Disk granulator, extrusion granulator and other types can be selected.

Drying and screening: Granular organic fertilizer also needs to be dried to remove excess moisture, and then screened by a screening machine to obtain fertilizer particles of qualified size.

4. Finished product packaging

Measurement packaging: Use an automatic measurement packaging machine to quantitatively package the screened organic fertilizer particles. Common packaging specifications include 25kg and 50kg bags.

Finished product inspection: Before packaging, quality inspection of the finished product is required to confirm that all indicators meet the standards, such as organic matter content, pH value, moisture content, etc.

Storage and sales: Organic fertilizers that have passed inspection are stored and waiting for distribution or direct sales to farmers and gardening enthusiasts.

matters needing attention

Throughout the entire production process, it is necessary to pay attention to environmental hygiene, avoid pollution, and make reasonable use of water resources, save electricity, and achieve green production. In addition, for large or continuously produced small organic fertilizer production lines, exhaust gas treatment and wastewater treatment systems should also be equipped to ensure that the production process meets environmental standards.

Through the above series of detailed operational processes, small-scale organic fertilizer production lines can convert manure that was originally considered waste into valuable organic fertilizers, which not only solves environmental pollution problems but also promotes sustainable agricultural development.