FIELD: food-processing, chemical, medicine, biochemical, constructional material industries. SUBSTANCE: hermetically sealed apparatus has rotary shell, cover, supporting units, elastic deformation supply and discharge pipelines rigidly connected with their opposite ends to rotary shell and to fixed outside device. Apparatus is provided with periodically operating reversible drive providing rotation of apparatus around its axis of rotation between two reverses for value ranging from 0.05 to 50 radians. EFFECT: increased efficiency, simplified construction and enhanced reliability in operation. 3 dwg
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