2026/07/06
Before processing composted manure in an organic fertilizer disc granulator machine, it is crucial to ensure the material is fully fermented and decomposed. Raw or semi-decomposed manure is excessively sticky and prone to adhering to the disc surface over large areas; furthermore, the finished product tends to heat up, clump, and emit odors during storage, severely compromising both the granulation quality and the final fertilizer product. Since composted manure often clumps, it must be thoroughly pulverized and screened to remove stones, grass roots, and hard debris, with the powder fineness controlled between 0.3 and 0.8 mm; coarse material fails to roll into uniform spheres, while hard impurities can abrade the disc surface and support rollers.
Strictly control the material's moisture content; composted manure retains inherent moisture, and the optimal range for granulation is 25%–35%. Excessive moisture leads to the formation of mud clumps that stick to the disc walls, while insufficient moisture prevents the powder from binding together; water spraying must be evenly distributed to avoid localized areas of excessive humidity. Chicken manure, which is high in fiber and lacks natural adhesiveness, can be blended with humic acid or bentonite to enhance binding, improve the granulation rate, and reduce the output of loose powder.
Maintain a steady, uniform feed rate during production; fluctuations disrupt the material's rolling rhythm, resulting in inconsistent particle sizes. Properly adjust the disc's tilt angle, rotation speed, and retaining ring height to ensure continuous agglomeration and granulation, and ensure the spray system does not drench the material with a concentrated stream of water. Due to the high adhesiveness of manure-based organic matter, material tends to accumulate and clump inside the disc during prolonged operation; clean the disc surface with a soft scraper after each shift, avoiding the use of hard objects that could damage the granulator, and apply rust-prevention measures after cleaning if the organic fertilizer granulator machine is to be shut down for an extended period.
Manure dust is corrosive; therefore, regularly inspect the lubrication status of rollers and gearboxes, apply grease on schedule, and tighten loose bolts to prevent equipment vibration from impairing granulation efficiency. Wet granules produced from manure have high moisture content and must be promptly transferred to a dryer; after cooling and screening, fine powder should be recycled for re-granulation to prevent the granules from softening or breaking and to avoid mold growth during storage.
