SPRAY DEVICE, SPRAY DRY GRANULATOR, AND MANUFACTURING METHOD FOR GRANULATION POWDER

摘要

PROBLEM TO BE SOLVED: To provide a spray device capable of manufacturing granulation powder by drying sprayed slurry at a high production efficiency where the production speed is compatible with the recovery rate, a spray dry granulator capable of manufacturing granulation powder at a high production efficiency, and a manufacturing method for granulation powder.;SOLUTION: A spray device 2 comprises: a lower disc 231(base plate) provided to be rotatable on a rotation axis O; an upper disc 232; a plurality of pins 233 arranged, on the top face (one face) side of the lower disc 231, along the circumference of a circle the lower disc 231 depicts when rotating, with an axis line arranged in a direction crossing the top face of the lower disc 231; and a top plate 242 (first member) and a bottom plate 243 (second member) provided on the top face side of the lower disc 231 and on the rotation axis O side from the plurality of pins 233 and arranged with a gap 245; and has a discharge nozzle 24 capable of discharging slurry out of the gap 245 toward the pins 233.;SELECTED DRAWING: Figure 4;COPYRIGHT: (C)2017,JPO&INPIT