METHOD AND APPARATUS FOR PRODUCING GRANULAR UREA PRODUCT

摘要

FIELD: technological processes.;SUBSTANCE: described is a method of producing granular carbamide as a product in a fluidised bed, in which small droplets (10) fresh molten urea in contact with cooling medium to form solid particles; said solid particles (11) are in contact with droplets (12) molten urea, which are larger than the above particles nuclei; note here that said solid particles and said drops together form a larger solid particles (13), and after contact with drops being molten urea said solid particles gradually still expand until solid particles reach the specified size, and then, said solid particles is subjected to further process of growing by contact with liquid droplets, smaller size than solid particles, until the required size of granulated product.;EFFECT: disclosed is a method of producing granular urea.;3 cl, 3 dwg