FIELD: process engineering.
SUBSTANCE: invention relates to production of mortars. Proposed plant comprises driven drum made up of three and more variable-width concave strips, folded in vertical plane in transverse direction and bended along the notches, and having walls skewed in crosswise-lengthwise direction and arranged in pairs at angle to each other to make variable-pitch zigzag screw lines and surfaces.
EFFECT: expanded performances.
7 dwg
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