The production process of converting cow manure into organic granular fertilizer includes multiple key steps aimed at processing raw cow manure into high-quality organic fertilizer. The following is a typical process for processing granular fertilizers on a cow manure organic fertilizer production line:

1. Pre treatment - Fermentation and Pre treatment

Collecting cow manure: Fresh or stored cow manure needs to be collected first.

Mixing: If conditions permit, auxiliary materials such as straw, rice husk, sawdust, and microbial agents can be added for initial mixing.

Fermentation: placed on a fermentation tank or composting site, utilizing microorganisms to decompose organic matter, reducing the number of pathogens, and improving nutrient availability. The fermentation cycle generally ranges from several weeks to several months.

2. Processing - Crushing and Mixing

Crushing: Further refine the fermented solid material through a crusher.

Secondary mixing: Additional nutrients such as nitrogen, phosphorus, and potassium can be added as needed to ensure the overall balance of the fertilizer.

3. Granulation

Choose an organic fertilizer granulator: Depending on the material properties and production requirements, choose a disc granulator, drum granulator, or roller extrusion granulator, etc.

Granulation: Put the mixed materials into a selected granulator and process them into particles of a predetermined size.

4. Post treatment - drying and cooling

Drying: The particles are dried using a hot air dryer to remove excess moisture and prevent mold and decay.

Cooling: The dried particles need to be cooled to near ambient temperature in preparation for the next step of processing.

5. Screening and packaging

Screening: Remove particles that are too large or too small through a vibrating screen to ensure consistent specifications of the finished product.

Coating (optional): In some cases, to improve the storage capacity and aesthetics of fertilizers, a thin film can be wrapped around the particles.

Packaging: Quantitatively package the screened qualified particles for easy storage and transportation.

6. Final testing and sales

Testing: Conduct quality inspection to confirm whether all indicators meet the standards.

Storage and sales: Qualified organic granular fertilizers are packaged and stored in warehouses, ready to be sold to sales channels such as farms and gardening shops.

It is worth noting that the specific process flow may be adjusted according to the specific conditions and technical preferences of the factory. For example, details such as the type of biological agent used in the fermentation process, the choice of granulator, and whether coating is applied can all affect the characteristics and cost of the final product. In addition, for large-scale production, the level of automation can also affect efficiency and economy. When planning a production line, it is recommended to consider factors such as raw material supply, market demand, technical and financial feasibility comprehensively to make the optimal decision.