Hopper device for preventing bag wadding from entering

The utility model relates to the technical field of flue gas denitration auxiliary facilities of power plants, in particular to a hopper device for preventing bag flocks from entering, which comprises a hopper body which is a big-end-up barrel enclosed by a plurality of inclined plates; a fence is arranged on the top surface of the inclined plate; the first filter screen is arranged in the hopper body and is suitable for screening impurities; the air duct is arranged at the junction of the inclined plate and the interior of the enclosure except for the side directly facing the detached bagged urea, and a first air outlet of the air duct is arranged obliquely upwards; the air duct is suitable for supplying air to the inclined upper part through the first air outlet and blowing bag wadding after the bagged urea is detached out of the hopper body; according to the device, the urea particles and the urea bag flocculus are different in weight, the urea bag flocculus is blown away through wind power, and the situat