Starch drying and screening device

The utility model discloses a starch drying and screening device, which belongs to the technical field of starch production equipment and comprises a conveyor used for conveying wet starch and a hot air pipe filled with hot air, a discharge port of the conveyor is communicated with the hot air pipe, and a tail end air outlet of the hot air pipe is connected with an exhaust fan. The discharging end of the hot air pipe is connected with a plurality of gas-solid separators, solid discharging ports of the gas-solid separators are connected with a screening machine, a large particle discharging port of the screening machine is connected with a crusher, and the discharging end of the crusher is communicated with the hot air pipe close to the discharging end of the conveyor. By adopting the closed-loop device, starch can be dried, separated, screened, crushed and separated in the closed-loop device, so that the starch is prevented from being contacted with the outside, and the product quality is improved; and meanwh