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Caking factors

Author: ComeFrom: Date:2015/4/28 19:49:58 Hits:1605
Internal water fertilizer
  The water fertilizer is the main factor to promote the caking of fertilizer, mainly has two parts: one is the free water, within the fertilizer composition of solid particles or capillary diffusion under the action of moisture adsorption; another is the crystal water, structure water molecules in natural fertilizer compound fertilizer, is due to internal components between chemical reactions formed the. In fact, the direct cause of the existence of water and fertilizer is not caking, but the presence of moisture is conducive to the formation of the fertilizer particle internal and surface liquid phase formation, promote the formation of crystal bridge, is conducive to the fertilizer particle inner and outer components of the reaction and fertilizer component decomposition and crystallization, and these factors are the main reason for the caking of fertilizer.

Fertilizer raw materials
  Another important factor is the caking of fertilizer fertilizer. Nitro and urea based high nitrogen compound fertilizer caking ratio and phosphorus sulfur based compound fertilizer is easier to agglomerate, iron ion containing compound fertilizer is not easy to agglomerate. The production of compound fertilizer raw materials mainly include urea, ammonium nitrate, ammonium chloride, ammonium bicarbonate, ammonium phosphate, triple superphosphate, potassium chloride, potassium sulfate, etc., these materials have different degrees of moisture absorption, after mixing the material more easily than the monomer material absorption into liquid, so that each fertilizer inside and the surface reactivity, mainly occurred in the storage process of fertilizer, crystal bridges formed on the crystal surface and recrystallization to caking of fertilizer.

The appearance of fertilizer
  Including the size, strength, fertilizer etc.. The fertilizer is small in size, large surface area, easy to absorb moisture, caking rate; particle strength, compressive resistance, particle should not be broken, less likely to agglomerate
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