Positive pressure conveying system for light materials

The utility model discloses a light material positive pressure conveying system which comprises a gas conveying branch, a material conveying branch and a feeding branch, and the tail end of the gas conveying branch is communicated with an air inlet of a feeding device. The tail end of the conveying branch is communicated with a feeding hole of the feeding device; a discharge port of the feeding device is communicated with an inlet of the feeding branch, and an outlet of the feeding branch is communicated with a boiler; the feeding device is a rotary feeder, an air inlet and a discharging port of the feeding device are formed in the two ends, close to the bottom, of the feeding device, and the connecting line of the air inlet and the discharging port of the feeding device is parallel to the axis of the rotary feeder. According to the positive pressure conveying system for the light materials, the phenomenon that the materials are unsmoothly discharged due to the fact that the materials are lifted by positive p