Steps of Making Organic Fertilizer Pellets

1. Raw material mixing: the main material is animal manure, the ingredients (straw, waste tobacco, planting and processing waste, etc.) are crushed, organic biological fertilizer is added, and the nutrient and carbon nitrogen ratio, carbon phosphorus ratio and pH value of the material are adjusted. After treatment, the moisture content of raw material is controlled at 60% - 65%, and the C / N ratio is 20-30.

2. Fermentation: aerobic fermentation process is adopted for organic fertilizer raw material fermentation, tank fermentation overturning machine and paddles (rotary tooth type, positive and reverse rotation) are used to cut and toss materials. The organic materials can be moved backward when overturning, about 2.2 meters are moved backward every time. The tipping machine has the mixing function and can be used as a mixer. The layered materials can be mixed evenly before entering the fermentation area (In this way, the investment of raw material premixing equipment and the workload of material loading and unloading, transportation and pre mixing can be greatly reduced).

3. Air drying and powder screening: the raw materials after fermentation are transported to the outdoor sun drying field, and the moisture content is below 20% after natural sun drying, that is, the air drying is finished. The air dried raw materials are crushed by the grinder, and then screened through the screen to remove impurities.

4. Inspection and packaging: the crushed and screened organic raw materials will be sent to the external inspection for qualified direct quantitative packaging, that is, powdered finished organic fertilizer. Granulation through the organic fertilizer granulator is the granular finished organic fertilizer.

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