Disc granulation relies on the agglomeration of powder into pellets for processing. It has strict requirements on feed particle size, uniformity, and material state. The crushing effect directly affects the granulation quality and production stability. This process is not suitable for large pieces or materials with uneven moisture content. Therefore, matching the fertilizer crusher to the type of raw material is crucial for ensuring the efficient operation of the disc granulation production line.
For disc granulation production lines processing organic wet materials such as livestock and poultry manure, straw, and mushroom residue, a half-wet material crusher is most suitable. Fermented organic fertilizer raw materials have high moisture content and contain coarse fibers, making them prone to clumping. This equipment uses a screenless structure, which effectively avoids the problems of wet material clogging and sticking, quickly breaking up clumps and refining the material. The produced powder is loose and uniform, ensuring stable material adhesion and regular granulation in disc granulation, significantly improving the yield of finished products.
For the production of dry powders, mineral raw materials, and compound fertilizers, a cage fertilizer crusher is more suitable. The equipment utilizes impact principles to crush materials, effectively processing dried, agglomerated powder to produce uniform particle size free of hard particles. High-quality dry powder entering the disc granulator results in better agglomeration, effectively reducing hollow and defective particles, making it suitable for standardized granulation production of various functional fertilizers.
Large-scale production lines can employ a combined crushing scheme, with a pre-processing semi-wet material crusher handling fermented wet raw materials, and a post-processing cage crusher refining returned agglomerated materials. This tiered processing mode perfectly complements the disc granulation process, reducing equipment operating load and effectively improving production line continuity and finished product quality.
In conclusion, selecting and matching crushing equipment based on the material’s wet/dry state fully leverages the technological advantages of the disc granulation production line, achieving efficient, stable, and high-quality large-scale fertilizer production.