ROD-TYPE CONCRETE MIXER Russian patent published in 2013 - IPC B28C5/20 

FIELD: process engineering.

SUBSTANCE: concrete mixer comprises rotary drive, drum and working member composed of independent rods-rolls made in the form of multistart helical surface with helical lines along perimetre and helical grooves inside said rods-rolls at acute angle to their rotational axis in the form of curved pockets with their centers of gravity located inside cross-section of said rods-rolls. Concrete mixer is composed of, at least, one perforated strip coiled in helical turns interconnected in strip lengthwise edges and bent at angle to flexure lines to make unidirectional helical lines and surfaces representing perforated polygonal pockets. Said pockets can vary in both shape and size along perimeter of rods-rolls. Note here that distance between flexure lines equal the sum of inner perforated surface pocket perimetres.

EFFECT: expanded performances.

7 dwg