As one of the mainstream processes in compound fertilizer production, the rotary drum granulation production line plays a vital role in agricultural modernization due to its continuous production capacity and high-quality product characteristics.

The core steps of the line include raw material pretreatment, mixing and granulation, drying, cooling, screening, and packaging. After crushing and screening, the raw materials are thoroughly mixed in a mixing equipment according to the formula ratio and then fed into a rotary drum granulator. Inside the granulator, the materials gradually agglomerate into granules under the combined effects of centrifugal force, friction, and gravity generated by the rotating drum. The granule strength can be adjusted by adding appropriate amounts of water or binders during this process. The resulting wet granules are then dehydrated in a dryer to a specified content, cooled in a cooler, and finally screened to a desired particle size. The fine particles that fall through the sieve are then returned to the granulation process for reuse, achieving efficient raw material recycling.
This line has significant advantages in many aspects. First, granular fertilizers offer uniform nutrient distribution, reducing localized nutrient excess or deficiency during application. Second, the granular form facilitates storage and transportation, minimizing dust loss and improving application convenience. Third, the production process allows for flexible formula adjustments to meet the individual needs of different crops and soils, aligning with the development of precision agriculture. Furthermore, the introduction of fully automated control throughout the entire process enables precise control of production parameters such as drum speed, material moisture, and drying temperature, ensuring consistent product quality while reducing labor costs. A single production line can achieve daily production capacity of hundreds of tons, meeting the needs of large-scale production.
In the context of green agricultural development, the rotary drum granulation production line is gradually transitioning to an environmentally friendly production model by optimizing energy utilization and reducing waste emissions. The granular fertilizers it produces also achieve a slow-release effect, improving nutrient utilization and reducing the environmental impact of excessive chemical fertilizer application. As agricultural technology advances, the stock-integrated granulation fertilizer production line will continue to leverage its technological advantages, providing strong support for sustainable agricultural development.