MILL FOR MILLING MATERIALS OF DIFFERENT HARDNESS AND PARTICLE SIZE Russian patent published in 2022 - IPC B02C4/02 B02C15/00 

FIELD: milling.

SUBSTANCE: invention relates to a mill for milling different materials. The mill contains drives 8 and case 4 equipped with loading hopper 5 and unloading hopper 6, in which main roller 1 is placed, installed with the possibility of rotation and driven by main drive 8. Main roller 1 is equipped with a replaceable wear-resistant rim. From both sides of main roller 1, along a circumference, there are guiding rings overlapping its diameter and located in such a way that to prevent loss of milled material from a milling slot. In case 4, at least three small millstones 2, 3, 3', axes of which are parallel to an axis of main roller 1, are installed with the possibility of rotation and sliding. They are located in a direction of its rotation along the circumference between loading hopper 5 and unloading hopper 6. All millstones 2, 3, 3' are equipped with compression devices 7 providing their movement to main roller 1. At the same time, first millstone 2 is equipped with its own drive by means of elongated ends of its shaft, protruding from bearing nodes, wherein the driven shaft is installed in rolling bearings. Bearing nodes of millstones 2, 3, 3' are equipped with guiding grooves located with the possibility of installation into guides in sidewalls of case 4 of the mill. Guiding grooves are equipped with channels for lubricant and are faced along their circumference with sliding plates with lubricating grooves. Bearing nodes of first millstone 2 are connected with a cross-beam, on which a rod of compression devices 7 is installed through axial ball bearings.

EFFECT: mill provides milling of materials of different hardness and particle size.

7 cl, 7 dwg