FUEL BRIQUETTE FABRICATION PROCESS Russian patent published in 2007 - IPC C10L5/10 C10L5/28 

FIELD: manufacture of building materials.

SUBSTANCE: invention relates to manufacture of molded fuel, in particular to fabrication of high-carbon fuel briquettes, which can be used when smelting cast iron in cupola-furnaces, when producing calcium carbide, silicon carbide, mineral fibers, and other materials. Process according to invention comprises mixing ground solid fuel with binder in amount 5-9% of the weight of ground solid fuel and briquetting mix followed by heat treatment of briquettes. Ground solid fuel is composed of coke fines with particle size 0.05-16.0 mm, 50-80%, and thermoantracite fines with particle size 0.05-6.0 mm, 20-50%. Binder is lignosulfonates modified with 3-5% of petroleum or petroleum products. Briquetting of mix is effected under pressure 25 MPa.

EFFECT: reduced power consumption, investment and operational expenses, increased briquette fabrication productivity, and increased strength, heat resistance, and calorific value of fuel briquettes.

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