METHOD OF BURNING CARBON DUST WITH AIR REQUIRED FOR COMBUSTION IN BURNERS AND BURNER FOR MIXING CARBON DUST WITH AIR REQUIRED FOR COMBUSTION Russian patent published in 2000 - IPC

FIELD: methods of burning carbon dust. SUBSTANCE: carbon dust is fed by means of primary air in form of mixture of carbon dust with primary air; as a result, primary gas with combustible gaseous components is formed in zone of ignition. To reduced forming of NO_x, average ratio of fractions of oxygen in primary gas and oxygen required for burning combustible volatile components is reduced through reduction of fraction of oxygen in primary gas and/or supply of foreign combustible gas to primary gas. EFFECT: enhanced efficiency. 6 cl, 6 dwg