FLUIDIZED BED DRYING EQUIPMENT AND A DRYING METHOD THEREOF CAPABLE OF PREVENTING THE FOULING OF A TARGET OBJECT TO BE DRIED

摘要

PURPOSE: Fluidized bed drying equipment and a drying method thereof are provided to prevent clogging due to particles in discharging by controlling the size of the particles with a small multi-screw.;CONSTITUTION: Fluidized bed drying equipment comprises a pretreatment apparatus. The pretreatment apparatus comprises a multi-screw feeding device(10), a surface treatment device, and a spiral current transfer device. A rotary blade(14) for granulating materials is mounted on the multi-screw feeding device. The surface treatment device is mounted on an ejecting part of the multi-screw feeding device, and sprays a surface treating agent and inert gas to treat the surface of a target object to be dried. The spiral current transfer device transfers the target object to be dried discharged from the surface treatment device to a drying device.;COPYRIGHT KIPO 2013