Granulation technology is a critical stage in tehnologija proizvodnje biofertilizatora. It transforms fine fermented materials into uniform, stable, and easy-to-apply granules. In a biofertilizer manufacturing plant, the choice of granulation system depends on raw material moisture, kapacitet, and the physical properties of the desired product.
Bio Fertilizer Pelleting Technology and Equipment Selection
1.1 Roller Compactor Granulation Method for Dry Biofertilizer Materials
A Kompaktni granulator is ideal for dry materials with low moisture content. It compresses fine biofertilizer powder into dense sheets and then crushes them into granules. You can control roller pressure and spacing to adjust particle size and compactness. This method requires no drying or binder, which saves energy and reduces cost. It is often used in bio NPK fertilizer production or other formulations that need high mechanical strength.
2.2 Disc Granulation Technology for Small-scale biofertilizer manufacturing (1-5TPH)
For plants focusing on medium to small-scale production, Disk granulator (peletizer) offers a cost-effective option. It works through rolling and layering, where powdered materials and liquid binders agglomerate into spherical granules on a rotating disc. Operators can easily regulate granule size by adjusting disc angle, rotation speed, and binder amount. This method is highly efficient for compost-based biofertilizers with moderate moisture content.
3.3 Rotary Drum Pelleting Process for Large-Scale Biofertilizer Production
A rotacijski granulator is suitable for continuous and large-scale bio fertilizer production lines. The rotating drum rolls and sprays materials, forming round and compact granules. It features uniform coating, stable operation, and long service life. Combined with automatic feeding, sušenje, and cooling units, this system ensures high capacity—up to 30 t/h in some plants. It is widely applied for NPK-based biofertilizers requiring large output and consistent quality.
