What are the material requirements for a rotary drum granulator?
As a core piece of equipment in the production of compound fertilizer s and organic fertilizers, the rotary drum granulator is widely used in large-scale production due to its simple structure and high capacity. Its granulation effect directly depends on whether the material characteristics meet the standards. To ensure efficient and stable operation of the equipment and produce granules with uniform particle size and qualified strength, the material must meet four core requirements: particle size, moisture content, adhesiveness, and component compatibility. None of these can be neglected. A reasonable particle size distribution is the foundation of granulation. Rotary drum granulation relies on a "snowball" granulation principle, requiring a scientific ratio of coarse and fine materials. Fine powder (particle size ≤ 0.15mm) should account for 60%-70% to quickly absorb binders and form particle nuclei; coarse powder (particle size 0.15-0.5mm) should account for 30%-40% to fi...