1. High Moisture Content in Raw Materials
Some organic raw materials, such as biogas residues and straw, have high water content. If they are directly entered into the production process without pretreatment, it will easily cause the organic fertilizer granulator or the fertilizer mixer in the compound fertilizer production line to operate difficulties, eventually leading to the finished fertilizer having excessive humidity.
2. Excessive Spraying During Fertilizer Granulation
During the granulation process of the fertilizer granulator, to improve the rate of granule formation, a certain proportion of water or binders usually needs to be added. However, if the spray amount is improperly controlled, excessive liquid will make the internal moisture content of the fertilizer granules too high, making drying difficult and ultimately causing the finished product's humidity to exceed standards.
3. Insufficient Drying Process
The drying process plays a crucial role in the fertilizer production line. If the drying temperature is too low, the drying time is insufficient, or the equipment's operating efficiency is reduced, the water in the fertilizer cannot fully evaporate, easily leading to high-humidity finished products. Additionally, overloading or improper operation of equipment such as the fertilizer dryer or the fertilizer cooler may also affect the drying effect.
4. Ventilation Conditions
The ventilation conditions during composting are also very important for temperature and humidity control. Proper ventilation can regulate the oxygen supply during composting, promote the normal growth and metabolism of microorganisms, and help control temperature and humidity.
In summary, during the composting fermentation process of organic fertilizer, temperature and humidity are influenced by many factors such as raw material composition, moisture content, and ventilation conditions. Rational control of these factors can effectively regulate the temperature and humidity of composting, promote the decomposition and transformation of organic matter, and ultimately obtain high-quality organic fertilizer.
