2025/11/13
Improving the organic fertilizer granualtor process requires the collaboration of multiple technologies, focusing on raw material adaptation, stable pelleting, preservation of activity, and intelligent optimization:
In the raw material pretreatment stage, intelligent conditioning technology is relied upon—real-time detection of moisture and fiber content using near-infrared spectroscopy, combined with a PLC system to precisely control the amount of water added and the ratio of binder, reducing the moisture content error to ±1%. Simultaneously, a low-temperature ultrafine grinding device grinds coarse fiber raw materials to below 1mm, balancing grinding effect and functional bacteria activity.
In terms of pelleting technology, the breakthrough lies in adaptive pressure control: pressure sensors detect the shear strength of different raw materials (such as chicken manure and straw mixtures), automatically adjusting the roller gap or screw speed to stabilize the pressure at 5~15MPa, ensuring a pellet compressive strength ≥2N and a pass rate exceeding 95%. Simultaneously, jacket temperature control and inert gas protection are used to maintain the pelleting chamber temperature at 40~50℃, increasing the functional bacteria survival rate from 60% to over 85%.
In terms of intelligentization, machine vision and AI algorithms are introduced. High-speed cameras identify particle size and roundness, automatically optimizing parameters such as drum speed and tilt angle. Combined with frequency conversion technology, the power of the organic fertilizer equipment is dynamically adjusted, resulting in 20%–30% energy savings compared to traditional processes.
Environmental protection technologies are upgraded simultaneously. A pulse dust collector and activated carbon adsorption system are adopted, controlling dust concentration below 5 mg/m³, and recycling dust in a closed-loop manner for reuse. Natural binders such as straw ash and waste cooking oil are used to replace chemical raw materials, reducing pollution and costs.
These technologies work together to solve the pain points of organic fertilizer granulation—"difficult granulation, low activity, and high energy consumption"—and promote the upgrading of fertilizer granulation technology towards precision and low carbon emissions.
