The utility model relates to a discharging dust
recovery device for a
modified starch feeding tank, which is characterized in that a sealing cover is sleeved at the upper end opening of a
recovery tank body, a partition plate is coaxially arranged at the upper end opening, a suction chamber is formed between the partition plate and the sealing cover, a ventilation hole is arranged in the middle of the partition plate, a
textile fabric filter sleeve is connected at the ventilation hole, and the
textile fabric filter sleeve is connected with a dust removal device. An air inducing
pipe is arranged at the upper part of the sealing cover and is connected with an induced draft fan; a suction
pipe is arranged at the upper part of the side wall of the
recovery tank body along the radial direction, a
discharge pipe is arranged at the conical bottom of the lower part of the recovery tank body, and the
discharge pipe is communicated into the closed material box through a recovery pipe; according to the device, air is exhausted into the recycling tank body through the air inducing pipe, the suction pipe on the recycling tank body generates
suction force,
starch dust generated in the feeding and packaging process of the feeding tank is sucked into the recycling tank body and blocked by the
textile fabric filtering sleeve, and the gathered
starch dust falls to the tank bottom of the recycling tank body to be recycled. Waste caused by direct
discharge of
starch dust is avoided, resources are saved, and cost is reduced.