SPIRAL CONCRETE MIXER Russian patent published in 2016 - IPC B28C5/48 B01F11/00 

FIELD: construction.

SUBSTANCE: invention relates to devices for preparation of mortar and concrete mixtures. In spiral concrete mixer, comprising a housing arranged on a foundation through, included in device, platform with platform with air cylinders, loading and unloading devices, housing is rigidly fixed on platform with vibrator, mounted horizontally under platform, and is made spiral from hollow tunnel with multi-turn crew surface along perimeter, coiled along spiral axis 0₁-0₁ around central rectilinear axis 0₂-0₂ of spiral housing, provided with helical grooves inside at an angle to its spiral axis in form of pockets of triangular shape, arranged alternately inside and outside cross section of hollow tunnel, and consists of sections in form of identical in shape and size rings coiled from identical rhomb-shaped strips, on which there are trapezia, lateral sides of which are located on lateral sides of rhomb-shaped strip, and upper and lower bases of trapezia are arranged at an acute angle to axis of symmetry of rhomb-shaped strip O₃-O₃ and are flexure lines, located at distances from each other equal to length of pockets of triangular shape on inner surface of hollow tunnel of spiral shape, wherein section in form of rings are interconnected by lateral sides of trapezia.

EFFECT: preparation of concrete mixtures.

1 cl, 7 dwg