ROD MILL Russian patent published in 2017 - IPC B02C17/02 B02C17/18 

FIELD: technological processes.

SUBSTANCE: invention relates to grinding of solid materials. The rod mill comprises a drum (1), boot (2) and a discharge spout (3) and a drive. The drum is formed by support rings. Between rings a cylindrical mesh surface with the waveform perimeter is fixed. The mesh surface is made of transverse and longitudinal rods. The transverse rods are made in the form of waveform rings with curved pockets. The longitudinal rods are twisted with the same pitch along a helical line of diameters of projections of curved pockets of transverse rods. The longitudinal rods are fixed to the rings of transverse rods from inner side of its curved pockets. Along the whole length of the cylindrical waveform mesh surface along the perimeter the coil spring (4) with a circular cross section is mounted. The spring is fitted with the device for changing of coil pitch by its extension or contraction.

EFFECT: invention increases productivity and improves the quality of finished products.

5 dwg