METHOD OF CONDITIONING OF THE GRANULATED FERTILIZERS Russian patent published in 2007 - IPC C05G3/10 C05B7/00 B01J2/28 C05G5/00 

FIELD: agriculture; chemical industry; other industries; methods of conditioning of the granulated fertilizers.

SUBSTANCE: the invention is pertaining to the technology of production of the mineralfertilizers with the improved physical properties slowly variable at transportations and storing. For mitigation of the blocking property of the fertilizers the granules after cooling are coated with the conditioning additivess in the separate apparatus. The method includes granulation of the pulp of ammonium phosphates, drying of the granules, their cooling with introduction at this stage by the sprinkling method of the liquid conditioning additives in the section with the temperature of the layer exceeding by 5-10°С the temperature of the being cooled product. The fluid additive is injected several times distributing it across the section of sprinkling in the form of drips with the varying dimensions. The dimension of the drips change within the limits of d_dr/d_gr equal to (0.05-0.15): 1). At that the dimension of the drips is increasing with the increase of the difference of the temperatures of the additive and the layer of the granules in the place of the injection. The temperature of the liquid additive is kept within the limits of 70-90°С. The treated granules of the fertilizer have obtained the qualitative coating reducing the blocking property of the fertilizer.

EFFECT: theinvention ensures, that the treated granules of the fertilizer have obtained the qualitative coating reducing the blocking property of the fertilizer.

2 cl, 2 ex