CONTINUOUS-ACTION CONCRETE MIXER Russian patent published in 2020 - IPC B28C5/22 

FIELD: chemistry.

SUBSTANCE: invention relates to devices for the preparation of concrete mixtures. To expand process capabilities and increase productivity in a continuous-action concrete mixer comprising a drum having a rotation drive, means for loading and unloading the drum is made in the form of a polyhedral pyramid installed at an acute angle and relative to the horizontal axis of rotation with flat facets along its perimeter and with flat end walls of polygonal shape, placed at different angles β and ψ to pyramid rotation axis and to each other at angle ϕ, wherein the longest axes of the end walls of the polygonal shape are turned along the axis of rotation of the drum relative to each other by an angle ω, and along the entire length of the drum along its axis of rotation a cylindrical spring with a round section of turns is mounted, which is equipped with a device for changing the pitch of turns, by means of its stretching or compression.

EFFECT: expansion of technological capabilities and increased productivity.

1 cl, 3 dwg