FIELD: process engineering.
SUBSTANCE: invention relates to grinding and can be used for determination of ore grinding degree. Ore (120) is crushed in crusher (100) with drum (110) driven be magnetic drive (130) with at least one genetic segment (131/1). Proposed method consists in intermittent determination of voltage (Uind,I) induced in coil (133/1) of magnetic segment, to make the conclusion on crushing degree. System to this end comprises measuring device (134/1) for intermittent determination of voltage (Uind,I) induced in coil (133/1) of magnetic segment (133/1) and data processing unit (170), which allows to derive crushing degree from determined induced voltage (Uind, I).
EFFECT: stable output of data on ore grinding degree.
21 cl, 5 dwg
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