The discharge feature null in the fluid bed

摘要

PURPOSE:To efficiently discharge the product and large grains and to improve the flowability as a whole by forming an opening of specified length in a perforated plate in a fluidized-bed treating device, providing a guide casing below and along the opening and furnishing a screw conveyor in the guide casing. CONSTITUTION:An opening of specified length is formed in a perforated plate 10 provided in a fluidized-bed treating device 1, and a guide casing 13 is formed below and along the opening. A screw conveyor 15 is set in the casing 13. Consequently, the product and large grains are efficiently discharged, the large grain is not grown, and flowability is improved as a whole.