PREPARATION OF FREE-BURNING COAL

摘要

FIELD: process engineering.SUBSTANCE: invention relates to a method of preparation of free-burning coal with the content of volatile substances not exceeding 16% whereat the said coal is heated to 200-395°C to destruct heat-sensitive coal lumps to be cooled and classified thereafter. Anthracite and/or hard coal are used as the free-burning coal. Heated coal is cooled at an ambient temperature.EFFECT: stabilised grain size, simplified process, higher calorific value.5 cl, 1 dwg, 4 tbl, 4 ex