FIELD: chemistry.
SUBSTANCE: invention relates to method and system for briquetting powder materials, for instance, moisture-containing, bituminous and semi-bituminous coals, without using binding agent. Method (versions) includes stages, at which powder material, probably, is partly dried, and supplied into briquetting device in conditions, when condensed gas is introduced into briquetting device at the time of supply or in conditions, when water vapour is released from powder material during supply. Briquettes are formed in briquetting section of briquetting device, where briquettes are formed from powder material in conditions that lead to condensation of gas component, reducing in that way, pressure growth during briquette formation. Invention also includes system (versions) for briquetting powder materials according to two methods stated above.
EFFECT: reduction of gas inrush during formation of coal dust into briquette.
52 cl, 1 tbl, 4 dwg
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