At present, there are two main production processes used in the organic fertilizer production line
, one is the plane strip stack composting process, the other is the trough type aerobic fermentation process. In addition, the laboratory small-scale trial production also uses sealed box / tank fermentation.
1. The composting technology of plane strip stack was studied.
Production flow chart: raw material treatment - adding bacteria - mixing - building - turning pile - secondary adding bacteria - mixing - Inspection - packaging - leaving factory
Advantages: small investment, relatively simple process, disadvantages: large area, incomplete maturity, serious secondary pollution.
2. Trough type aerobic fermentation process.
Production flow chart: raw material treatment - adding bacteria - mixing - trough - turning - Secondary adding bacteria - mixing - Inspection - packaging - leaving factory
Advantages: complete maturity, high product quality, small secondary pollution disadvantages: large investment in fertilizer production machine
, large investment
The fermentation process of organic fertilizer production line is as follows:
Fermentation raw materials -- pretreatment -- mixing -- fermentation -- reconstitution -- granulation -- packaging -- delivery
In the pretreatment process, it is necessary to crush the raw materials and adjust the particle size of the raw materials. The suitable particle size range is 12-60mm. Crushing and screening can increase the surface area of raw materials, facilitate microbial reproduction and improve the fermentation speed.