Powdery material continuous conveyor - has material metering unit coaxial to mixing chamber on upstream side

摘要

The continuous powdery material pressure conveyor is particularly for pulverised coal, having a gaseous medium discharged through a nozzle under pressure at high speed into a mixing chamber into which the material is metered. The metering unit in the direction of flow is mounted axially before and coaxially to the mixing chamber, thus introducing the material into the latter along its centre line and in the axial direction. The medium can be discharged via a Laval nozzle and a diffuser attached to it. In the axial direction between the diffuser and the mixing chamber is a compression section.