Pneumatic transport in raising, during that mix of material with transporting air is blown in the pipe, is used for transport of powder and fine-grained material for distances from several by hundreds meters and with outputs of tens to hundreds tons per hour.
Most often is used mid-pressure pneumatic transport (15 – 100 kPa) with flow feeders or rotary mixing feeders, that work continously. As sources of operating air are used work reliable blowers.
Opposite to that high-pressure pneumatic transport (0,1 – 1 MPa) uses either cycle-operating chamber feeders, or continous screw feeders. As sources of operating air are used compressors of higher cost.