FIELD: process engineering.
SUBSTANCE: invention relates to grinding and sizing means to be applied in multiple branches of national economy. Proposed device comprises vacuum chamber accommodating two tapered grinding discs rotating in opposite directions and fitted on fixed spindle to form grinding zone and annular slot for discharge of finished product, initial material and air feed system communicated with grinding zone between grinding discs, and finished product discharge system. Initial material and air feed system is provided with pressure regulator and communicated via adjustable valve with aforesaid grinding zone while the device is furnished with synchroniser connected with pressure regulator and adjustable valve to equalise initial material feed rate and grinding rate.
EFFECT: synchronised feed and discharge.
4 cl, 1 dwg
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