MATERIAL CONVEYANCE DEVICE Russian patent published in 2011 - IPC B65G33/12 B65G33/24 

FIELD: transport, package.

SUBSTANCE: proposed device is intended for conveyance of granulated and loose materials. Proposed device comprises drive casing 1, loading branch pipe 3, discharge branch pipe 4, and pipeline 5. Drive casing consists of guide elements made up of trapezoidal strips with varying width over strip length from loading side to discharge side, said strips being coiled along spiral line. Spiral grooves and lines are made along drive casing perimetre that feature variable pitch, increasing from loading side to discharge side, and inner curved, convex or concave, surfaces with curvature centers located outside or inside drive casing.

EFFECT: expanded operating performances.

12 dwg