CONTINUOUS CONCRETE MIXER Russian patent published in 2019 - IPC B28C5/22 

FIELD: technological processes.

SUBSTANCE: invention relates to devices for the preparation of concrete mixtures. Continuous concrete mixer contains a rotary driven drum assembled from sections assembled from two identical subsections made from an even number of at least three identical isosceles triangles, alternately connected around the perimeter of the subsection with at least three identical equilateral trapezoids with the formation of small and large end openings in the form of polygons. Number of sides of the small end opening is twice the number of sides of the large end opening and in the section two subsections are connected to each other with the sides of the end large openings. Sections are attached to each other along the length of the drum with their sides of small end holes with the formation around the perimeter of the drum at least six surfaces of a wave-like shape and at least three pairs directed toward each other, broken screw lines. Wave-shaped spring is mounted along the entire length of the drum, that is equipped with a device for changing the pitch of the turns by stretching or compressing it.

EFFECT: expansion of technological capabilities and increased productivity.

1 cl, 5 dwg