The organic fertilizer production equipment agglomeration: Fertilizer agglomeration is formed by the contact points of particles (granules, pellets, granules, etc.). Fertilizer agglomeration caused by contact between fertilizer particles to form crystalline connections (called crystal bridges) is the most severe form of agglomeration, and can also be formed by gluing (capillary adhesion), which is generally physical and prone to agglomeration. recover. High water content in fertilizers can also cause a liquid film of saturated solution to form between fertilizer particles, making the fertilizer "sticky". This kind of stickiness is also difficult to handle, which directly affects the fluidity of fertilizer granules, which is especially unfavorable for the organic fertilizer production. Therefore, production must also be avoided.
(1) Control the particle size of fertilizers: Generally, the larger the fertilizer particles are, the smaller the contact area between the fertilizer particles, the smaller the ability to produce chemical reactions and absorb moisture in the air, and it is likely to aggregate.
(2) Control the water content of the base fertilizer. Excessive moisture in fertilizers is one of the main reasons for the formation of sticky fertilizers. Generally speaking, different base fertilizers and mixed fertilizers have different requirements for the minimum water content of each component.
Nitrogen and phosphorus formula fertilizer containing ammonium nitrate and urea, N: P20, ≥1.0%, and water content of 0.5% to 1.0%.
Nitrogen and phosphorus formula fertilizer containing ammonium nitrate and urea, N:P203<1.0, water content 1.0%～1.5%.
Does not contain ammonium nitrate and urea, N: P203<1.0 nitrogen and phosphorus formula fertilizer, water 1.5%~2.0%.
The formula fertilizer contains no nitrogen fertilizer or less nitrogen fertilizer, and the water content can be > 2.5%.
(3) Use a conditioner (anti-caking agent). Currently, diatomaceous earth, kaolin, clay and talc are commonly used conditioning agents. They adhere to the surface of fertilizer granules, preventing contact between granules to form crystal bonds.
