Using Granular Fertilizer Binding Starch for granulation keeps dust generation extremely low and greatly suppresses dust emissions, resolving well‑known industry pain points such as heavy dust output, high material losses, and poor workshop environments associated with conventional fertilizer manufacturing. In the past, many fertilizer plants used bentonite and other clay‑based auxiliary binders with limited bonding power, which only enabled basic material agglomeration. The resulting particles had loose internal structures, with large quantities of free fine powder adhering to their surfaces. During granulation, screening, elevating, conveying, and packaging, constant collision and friction between particles dislodged surface fines and dispersed dust across the workshop. Abundant fine powder caused raw‑material losses and reduced finished‑product yield. At the same time, accumulated dust clogged pipelines and screens and created workplace safety hazards linked to airborne dust.
One core advantage of modified Granular Fertilizer Binding Starch lies in its exceptional powder‑locking and powder‑fixing performance. After gelatinizing upon contact with water, starch colloids infiltrate micro‑gaps within powder feedstock through powerful wetting and penetrating effects, firmly immobilizing large volumes of micron‑scale fine powder and minimizing free fines at the source. After granulation and drying‑induced curing, continuous, smooth starch protective films form on particle exteriors. These films isolate the internal fertilizer material, reduce material peeling under inter‑particle friction, and improve particle wear resistance. Following screening and polishing, finished particles show virtually no surface dust or fine debris and exhibit a clean, uniform appearance.
During subsequent storage, bulk transportation, handling, and mechanical spreading, minimal dust is released even under bumping, compression, and particle‑to‑particle collision. Its dust‑reduction performance exceeds that of conventional auxiliary binders. This binder is compatible with a broad range of fertilizer grades, including high‑concentration compound fertilizer, organic‑inorganic compound fertilizer, and bio‑organic fertilizer. Its dust‑suppression effect is especially pronounced for organic‑fertilizer feedstock with high fine‑powder content.
Dust reduction delivers multiple practical benefits: reduced raw‑material losses, higher finished‑product qualification rates, improved workshop operating conditions, and less manual labor spent on equipment cleaning. Even so, absolute zero‑dust output cannot be guaranteed under all operating conditions. Insufficient starch dosage, incomplete gelatinization, or inadequate drying leads to low particle strength and residual fine debris. Maximum dust suppression depends on properly controlled starch dosage, water addition rates, and drying parameters. Overall, modified Granular Fertilizer Binding Starch meets industrial requirements for low‑dust fertilizer production while balancing product quality, production efficiency, and workplace safety.
