FUEL BRIQUETTE FABRICATION PROCESS Russian patent published in 2008 - IPC C10L5/20 C10F7/06 

FIELD: manufacture of building materials.

SUBSTANCE: invention relates to technology of agglomerated solid fuel and can be used in fabrication of solid fuel for use in public solid-fuel boiler assemblies and gas generators as well as use as domestic fire-place fuel. Invention is directed to reduce power demand of fuel briquette fabrication process, to increase density, strength, atmosphere resistance, moisture resistance, storage time of finished product, and to reduce hygroscopicity and crumbliness while simultaneously improving appearance of the product. Process in general consists in stirring raw mix of solid fuels and binder, briquetting, and drying briquettes, said binder being lignosulfonate in the form of 35-75% solution used in amount of 3 to 35% on the dry weight of solid fuel. Before briquetting, mix is dried to moisture content 5-23% and then compacted under specific pressure 05 to 35 MPa.

EFFECT: improved performance characteristics of product.

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