Disc granulators and organic fertilizer production process

In the commercial production of organic fertilizer, the granulation process directly determines the appearance, storage and transportation efficiency, and market value of the finished product. Disc granulators, with their wide adaptability, flexible operation, and stable forming effect, have become the core equipment in organic fertilizer production lines, especially suitable for small- and medium-scale standardized organic fertilizer production, and highly compatible with the overall organic fertilizer process. The complete organic fertilizer production process includes raw material pretreatment, high-temperature composting, material refinement, granulation, drying and screening, and finished product packaging. Disc granulators precisely connect the material refinement and finishing stages, making them key equipment for transforming semi-finished products into commercial granular fertilizer. Organic fertilizer powder that has undergone thorough fermentation, crushing, and screening has a fine texture, making it suitable for the wet agglomeration forming principle of disc granulation, effectively ensuring a stable and smooth granulation process. During production, the equipment relies on the centrifugal force of the disc to continuously rotate the material, combined with micro-atomized water replenishment, allowing the powder to gradually agglomerate and condense into uniform granules. The entire forming process is gentle and involves no strong crushing, preserving organic matter and the activity of beneficial bacteria, thus maximizing the original fertilizer efficacy and meeting the core production requirements for organic fertilizer nutrient maintenance. This equipment is adaptable to various organic fertilizer raw materials such as livestock and poultry manure, straw, and mushroom residue. Pellet sizes are adjustable to meet diverse market demands. The formed pellets are round, compact, and of moderate hardness. After drying and screening, they are not easily pulverized and produce no dust, effectively solving the problems of clumping and uneven application of powdered organic fertilizer, and significantly reducing storage and transportation losses. Overall, the disc granulator is well-suited to the characteristics of organic fertilizer production process, supports flexible production with multiple formulas, is simple to operate, and runs stably. It is currently a core granulation equipment with excellent cost-effectiveness for the refined and commercialized production of organic fertilizer.