VORTEX MIXER Russian patent published in 2004 - IPC

FIELD: mixing dry materials. SUBSTANCE: proposed mixer has two concentric tubes with inlet and outlet holes. Outer tube is closed at both ends and inner tube has many holes for imparting vortex motion to air admitted to inner cavity of inner mixing tube. Holes are made at solid angles in inner tube. Dry powder-like particles of two different compositions are introduced into inlet holes of tubes for mixing and mixture thus obtained is directed to outlet hole. Air introduced into outer tube passes through many holes. Pressure of air may be regulated for control of transportation of mixed particles. EFFECT: enhanced efficiency due to possibility of simultaneous transportation and mixing of powder-like components. 5 cl, 6 dwg