The organic fertilizer disk granualtor machine is a key piece of equipment for organic fertilizer forming. To ensure round, uniform, and dense pellets, it is necessary to coordinate and control four aspects: structural parameters, feeding process, pelleting control, and operational stability.

Equipment structure is fundamental. The disc inclination angle, rotation speed, and height must be matched, generally with an inclination angle of 45°–55° and a moderate rotation speed, ensuring that the material forms a reasonable material curtain and rolling trajectory within the disc. Wear-resistant liners are installed on the inner wall of the disc to maintain a smooth surface and prevent material from sticking to the wall and causing pellet deformation. Adjustable scrapers and cleaning devices are installed to promptly remove sticky material and prevent clumping and uneven particle size.

The feeding and spraying processes directly determine the roundness. A dry powder base layer and spray pelleting mode is adopted. First, a thin layer of material is laid in the disc, then the binding liquid is sprayed evenly, with small and uniform droplets to avoid localized over-wetting. The principle of small, multiple, continuous, and uniform feeding should be followed, avoiding large-scale feeding at once to prevent significant particle size variations. Raw materials are pre-crushed and sieved to control particle size, ensuring uniform fineness and reducing the impact of coarse particles on roundness.

The pelleting process for bio-organic fertilizer granualtion requires a stable rolling environment. The moisture content of the material must be controlled within a reasonable range; too wet, and it will easily clump together; too dry, and it will be difficult to form. By adjusting the rotation speed and inclination angle of the disc, the granules are continuously tumbled, scattered, and polished within the disc, gradually becoming dense and round. The granulation time must be reasonably controlled; too short a time results in loose granules, while too long a time leads to excessively large and deformed granules.

Stable operation and timely screening are crucial. A graded discharge port is set up to allow qualified granules to be discharged promptly, avoiding excessive rolling. A rotary screen is used to promptly remove large particles and fine powder, returning the material for re-granulation to ensure consistent particle size in the finished product.

By implementing these controls, the organic fertilizer granules will be round and smooth, with high strength and no pulverization, significantly improving their appearance and quality, making them easier to store, transport, and sell.