LOOSE MATERIAL PNEUMATIC TRANSPORTATION METHOD Russian patent published in 2002 - IPC

FIELD: materials handling facilities. SUBSTANCE: invention can be used in continuous processes. According to proposed method, initial material with base product and admixtures is charged into pipeline and is moved under the action of gas pressure along pipeline. Main product is separated from admixtures being exposed to simultaneous action of gas flow under pressure and additional rarefied gas flow onto material. Differential pressure gas flow, thus formed, is sucked out and admixtures are separated from gas flow. Novelty is selection of flow rate of rarefied gas by setting ratio between indicated flow rate and flow rate of gas under pressure. In this case particles of main product and admixtures featuring aerodynamic properties are separated. EFFECT: improved efficiency of separation of main product. 1 dwg