After the packaging and storage of compound fertilizer production, product clumping not only affects the appearance quality of the product, but also hinders transportation and application to soil. There are many reasons for the clumping of compound fertilizers, and fertilizer production companies usually use coating machines to coat the products to prevent clumping. This process requires the use of coating oil or solid dry powder to wrap the surface of the particles, which can easily achieve isolation between particles and prevent them from sticking to each other. Here we will provide a detailed understanding of the causes of fertilizer clumping and related preventive measures.

Among the factors that cause clumping of compound fertilizers, we first think of the moisture content. The production of compound fertilizer relies on water to bond the materials together to form particles, which are then dried in a dryer to reduce the water content and packaged for storage. If the moisture content of the product is still high after this process, it is inevitable that it will adhere to each other in the subsequent stacking, forming lumps.

When filling compound fertilizer products into packaging bags, material temperature is also an important factor. Excessive temperature is not only detrimental to packaging operations, but also as a compound fertilizer, salts dissolved in residual moisture will crystallize and precipitate, forming salt bridges and causing clumping. Especially for compound fertilizer raw materials mainly composed of nitrogen, they are more severe, as they are easily melted and cause particle agglomeration in humid and high-temperature environments. Therefore, in a standard organic fertilizer production line, the material needs to be cooled after drying to restore it to room temperature.

The content of various elements in compound fertilizers is diverse, adapting to different crop and soil requirements. When customizing fertilizer formulas, it is also necessary to understand the physical and chemical properties of the raw materials, such as whether they will react with each other, at which stage and in which environment the reaction will occur, and whether it will also affect product clumping, etc.

Its about the appearance and storage method of compound fertilizer products. The surface of high-strength round granular fertilizers is relatively smooth, which has a positive effect on preventing clumping. Of course, we can use a coating system as a supplement to achieve better results. The storage of fertilizers is carried out by stacking, and setting the height of the stacking reasonably can reduce the pressure on the fertilizers and effectively prevent the occurrence of clumping.