MILL FOR DEEP PROCESSING OF MINERAL SAND Russian patent published in 2025 - IPC B02C7/12 

FIELD: grinding of various materials.

SUBSTANCE: disclosed is a mill for processing mineral sand, comprising a cylinder for material, which is rotatably connected to a spindle, which is equipped with at least one set of alternately distributed first grinding discs and second grinding discs, which are equipped with at least one feed hole. One end of the spindle is connected to the sorting disc, which is connected to the first grinding disc through the connecting rod, and the second grinding disc is connected to the connecting rod and contains an external disc and an internal disc. First grinding wheel and inner disc are rigidly coupled with spindle. Outer disc is rotatable relative to inner disc to obtain phase difference ε. Sorting disc comprises a pressure plate and a sorting wheel, which is rigidly connected to the spindle, and the pressure plate is connected by a movable joint to the spindle. Connecting rod is equipped with a limiting unit and is made with possibility of simultaneous deviation of the phase difference of the outer disc relative to the inner disc by a value η at the same time.

EFFECT: invention provides higher fineness of grinding process and grinding efficiency.

10 cl, 12 dwg