BURNER AND INTERNAL COMBUSTION DEVICE WITH BURNER Russian patent published in 2000 - IPC

FIELD: mechanical engineering. SUBSTANCE: burner has mixing nozzle restricting passage for flowing mixture along which flowing mixture containing atomized coal and transporting gas flows in direction of furnace. Burner has passages for secondary and tertiary air enclosing mixing nozzle along which secondary air and tertiary air flow, respectively, for use in process of burning. It has also air injection nozzles arranged near outer periphery of mixing nozzle far end. Air is injected by these nozzles in direction of mixing nozzle axis so that high temperature gas near outer periphery of mixing nozzle far end is sucked into flowing mixture near outer periphery of this far end. EFFECT: reduced content of nitrogen oxides in combustion products. 47 cl, 45 dwg