| 摘要 |
<p>A granulating apparatus for continuously producing granules from powdery particles. The granulation chamber (8) of the apparatus comprises a feeder (11) for supplying powdery particles to te granulation chamber (8) and a spray nozzle (28) for ejecting a binder solution on the powdery particles held in the granulation chamber (8). Powdery particles-drying hot gas is supplied from the bottom of the granulation chamber (8) so as to vortically flow upward through the granulation chamber. The centrifugal force of the vortically flowing hot gas causes fully grown granules having a larger diameter to be distributed toward the peripheral wall (9) of the granulation chamber (8). The granules fully grown to a prescribed size are selectively and continuously conveyed to a drying chamber through an outlet port formed in the peripheral wall (9) of the granulation chamber (8). The granules thus brought are thoroughly dried in the drying chamber (48). In this way, powdery particles fully grown to granules having a prescribed size in an granulation chamber (8) can be selectively and continuously discharged.</p> |
