FIELD: process engineering.
SUBSTANCE: invention relates to introduction or extraction of gas from the mix solid phase/gas. Proposed device comprises protective structure to accommodate inverted cone and elements arranged thereunder and sized to magnitude that allows lengthwise displacement of solid phase between said element and said protective structure at approx permanent rate profile in cross-section. Said element comprises skirt extending outward and pipeline to feed gas to area under said skirt and/or extending inward and pipeline to feed gas to area above or under said skirt. Invention covers also the process of cleaning gas of the mix solid phase/gas.
EFFECT: lengthwise displacement of solid phase between said element and said protective structure at approx permanent rate profile in cross-section, uniform distribution of clearing gas in polymer.
16 cl, 5 dwg
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