VIBRATION MIXER Russian patent published in 2014 - IPC B01F11/00 

FIELD: machine building.

SUBSTANCE: vibration mixer comprises a mixing chamber with the ports for loading and unloading of materials respectively, a rotor with blades and rotary drive. In the top and bottom parts of the mixing chamber, lower and upper vibrators made in casings are set in the centre and rigidly fixed. The vibrators' casings are made as metal corrugated shells being corrugated thin-walled bodies of rotation which in the vertical plane section provide for complex truncated geometric figures by corrugation peaks points, the figures are formed by mean intersection of four circles with the centres being the vertices of a square and with the radiuses being equal to the diagonal of the said square, the shells are able of generating three vibration fields identical in amplitude and different in frequency, two of the fields in the aggregate and one field separately correspond by shape to the corrugated contour of the said bodies of rotation, with differently directed oscillations. Inside the metal corrugated shell of the lower vibrator a disk is set in the centre in the horizontal plane and is rigidly fixed, the disk is fitted by a cylindrical protrusion able of being inserted and fastened along the inner diameter of a spring installed so that it can be freely compressed and released in a cup, a connecting rod driven by the central crank mechanism is rigidly attached to the centre of the cup's upper inner part, and a pusher is attached to the centre of the cup's upper outer part, the pusher is rigidly coupled by its other end with the inner upper part of the metal corrugated shell of the lower vibrator casing and is provided with the possibility of generating vibrations from the upper part of the lower vibrator casing via the connecting rod by the central crank mechanism. The lower vibrator disk provides for the possibility of generating vibrations of the central part of the lower vibrator casing with the help of four pushers which by their upper part are symmetrically attached to the lower part of the disk and by the lower part are coupled in a movable pivot unit of the connecting rod of the lower crank mechanism. A disk with a guide post is rigidly fixed inside the metal corrugated shell in the centre in the horizontal plane. Four protrusions are symmetrically set on the outer cylindrical part of the cup. A spring vibration generator made as a spring set is installed in the centre between the casings of the lower and the upper vibrators, the spring set consists of at least two springs of different diameter which are fixed along the diameters of recesses formed on the outer surface of the metal corrugated shells by the set of the smallest corrugations out of the corrugations of the lower and upper vibrators. It is provided for the generation of three vibration fields with different frequencies in the whole volume of the mixer's mixing chamber for concrete mix components being mixed, along with the simultaneous possibility of providing for the effect of the said vibration fields' overlapping in the centre of the mixing chamber, simultaneous generation of differently directed oscillations in the three-frequency range which prevent the formation of dead zones in the mixing chamber completely, provision of additional vibration action on the mixed components, homogeneous amplitude distribution of each vibration field in the mixing chamber and qualitative intensification of mixing process for these components on the whole.

EFFECT: provision for qualitative intensification of component mixing process on the whole.

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