DISINTEGRATOR Russian patent published in 2017 - IPC B02C13/24 

FIELD: machine engineering.

SUBSTANCE: disintegrator comprises a cylindrical housing (1) with axial loading (2) and tangential unloading (3) devices. The upper (4) and lower (7) horizontal disks are placed in the housing with the possibility of counter rotation. The series of impact elements (5, 6, 9) are rigidly secured on the disks along concentric circles. Each of the series (6) of impact elements is located between the series (9) of impact elements of the opposite disc. The inter-series axial gaps (11, 12, 13) in the cross-section change equally along the circumference and have a maximum and minimum value every 180°. The cross-section of the impact element at the minimum inter-series axial gap is a rectangle or close to a rectangle with sides b and h, where h = (1.1-1.2) b. At the maximum inter-series axial gap it is a square or close to a square with side b. The distances between the impact elements decrease from the center to the periphery of the disks. To the end of the disk with the penultimate series of impact elements of the grinding chamber, the cylinder (14) is fixed rigidly. On the inner surface of the cylinder, along the entire height, alternating sections (15) are rigidly fixed to classify the material with holes of the size (1-5) d_max and the variable cross-section of the armour plate (16) for additional material grinding, where d_max is maximum particle size of the final product. The gap between the largest diameter of the outer series of impact elements and the projections of the armour plates decreases from a value to value c= (1/2-1/3) a in the direction of material movement from the outer series of impact elements. The height of the cylinder exceeds the height of the impact elements.

EFFECT: increased efficiency of grinding by increasing the amount of particle collisions and classifying the material in the peripheral part of the grinding chamber.

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