Steps to make organic fertilizer from pig manure:

1. Raw material fermentation: The C/N value of pig manure is low, and it can be mixed with straw powder, mushroom residue, etc. to adjust the C/N value of the raw material to a value suitable for microbial decomposition (C/N is about 25). Adding auxiliary materials can also adjust the moisture (about 55% moisture content). Appropriate moisture content is conducive to the growth and reproduction of microorganisms. The mixed raw materials are fermented and decomposed. The raw material decomposition is a heavy drug step. It can kill harmful substances such as pathogens and weed seeds through aerobic fermentation. In order to improve the fermentation efficiency, the organic fertilizer turning machine can be used to turn the pile during the fermentation period to increase the oxygen content of the material and speed up the fermentation process of the material.

2. Raw material crushing: Since the raw material particle size may be different, it is not conducive to the production of organic fertilizer. It needs to pass through the biomass crusher and crush and screen before entering the next process. The organic fertilizer crusher can adapt to materials with different moisture content and viscosity.

3. Granulation system: After the organic fertilizer is granulated, it is convenient for packaging and storage and farmers' mechanical sowing. As a commodity, organic fertilizer granulation is necessary. Organic fertilizer granulators can be divided into disc granulators, roller extrusion granulators, drum granulators, etc. You can choose the appropriate granulator according to your own working conditions.

4. Organic fertilizer drying: An important inspection indicator of the quality of organic fertilizer is moisture. Excessive moisture content can easily cause agglomeration. The moisture content of granulated organic fertilizer can be reduced by drying.

5. Inspection and packaging: After passing the inspection, the organic fertilizer can be packaged and shipped out of the factory and circulated in the market.