Working Principle: A fan installed at the starting point of the conveying system introduces positive pressure air, which is higher than atmospheric pressure, into the feeder device. Material is added from the hopper and, under the action of gravity, enters the feeder for quantitative feeding. The material and air are transported together through the conveying pipeline to the separator or storage silo at the endpoint. After the material and air are separated, the air is filtered and discharged into the atmosphere. Features: This system uses a Roots blower as the air source and a rotary feeder as the feeding device to continuously convey materials under pressure.