Abstract
Intensification of large-capacity carbamide (urea) production is a vital task now. One of the factors restraining the increase in the production of carbamide (urea) is the insufficient flow rate capacity of the granulation tower. In the tower, outside air is supplied from below to cool free falling droplets of carbamide( urea) melt. At high temperatures of the environment, during the summer period, there is a decrease in urea production in the tower. The influence of air drying and cooling on the increase in carbamide (urea) yield and its quality improvement has been studied. The system of cooling and drying of external air, supplied to the tower, in a hollow water jet nozzle has been developed.The calculations show that the proposed system can, firstly, ensure the stable operation of the tower whereby the annual production of carbamide (urea) increases by 40 thousand tons, and secondly, it will allow creating new high-performance granulation towers based on the same axial blow fan K-664 A.
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