Patent ID: 7344663
Filing Date: 2008-03-18
Classification: B01J

Abstract:
1. A multi-nozzle as a nozzle for spraying a raw material aqueous solution, being applied to a granulation method to manufacture granules from the raw material aqueous solution using a granulator of spout-fluid bed type, wherein: (1) two to six nozzle ends in a shape of triangular cone convexed upward are arranged radially on a body in a shape of triangular cone convexed upward at an equal spacing therebetween; (2) spraying angle of each nozzle end is in a range from 15° to 45°, and spraying angle of the whole multi-nozzle is in a range from 30° to 60°; and (3) throughput of the multi-nozzle is in a range from 0.6 to 2.0 t/hr, and throughput of each nozzle end is in a range from 0.1 to 0.4 t/hr.