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Recently, our company conducted trial tests on sesame using a fluidized bed dryer. The key to drying sesame lies in controlling the drying temperature of the equipment; too high a temperature will cause the sesame to burn and lose its nutritional value, while too low a temperature will fail to meet the required moisture levels for drying ; Secondly, due to the shape and size of sesame seeds, our company has adopted a duckbill-hole design on the perforated plate, ensuring that the material does not pass through the holes in the plate to reach the next layer. The working principle of a fluidized bed dryer is that hot air is introduced at a certain velocity from the bottom of the porous distribution plate in the dryer, flowing evenly through the layer of sesame material. The sesame particles remain suspended in the air flow, moving up and down; this results in a large contact area between the gas and the solid, thereby increasing the rates of mass and heat transfer, and allowing the material to be dried quickly and evenly. The dryer has a rectangular shape, and its interior is divided into multiple chambers using partitions. Since hot air is directed to each chamber separately, it is possible to adjust the amount of hot air used based on the varying moisture levels in each chamber, thereby ensuring that the drying level remains consistent across all chambers. It is mainly used for processing granular materials. The requirements for the tests in this design are an hourly water evaporation rate of 150–200 Kg, with a processing capacity of 2000–2500 Kg/h for sesame. According to the final statistics, the sample experiment was highly successful. The company’s exhibition hall currently has prototypes of fluidized bed drying equipment; new and existing customers are welcome to come and visit as well as test the equipment.
What is a duckbill vent? Is there a picture? Please show it