NOZZLE TIP FOR FURNACE OPERATING ON POWDERED SOLID FUEL (VERSIONS) Russian patent published in 2014 - IPC F23D1/00 

FIELD: power engineering.

SUBSTANCE: nozzle tip (100) for a nozzle (200) of a pipe for powdered solid fuel in a furnace operating on a powdered solid fuel, which reduces NO_x emissions. Besides, the nozzle tip (100) comprises a jacket (120) for the primary air that contains an inlet end (102) and an outlet end (104). The inlet end (102) receives flow of fuel; the first separating plate (160), arranged in the jacket (120) for primary air, besides, the first separating plate (160) and the jacket (120) for primary air form the upper chamber (260) for PA-PSF (primary air - powdered solid fuel) for reception of the first part of the fuel flow; and a separator (180) of flow arranged in the jacket (120) for primary air. Besides, the separator (180) of the flow comprises a pair of opening surfaces, which divides the second part of the inlet jet (230) into the upper part (350) of the jet PA-PSF and the lower part (360) of the jet PA-PSF. The upper part (350) of the jet PA-PSF and the first part of the inlet jet (230) are combined in the outlet end (104) of the jacket (120) for the primary air, forming the upper output jet (320) PA-PSF, which exits the outlet end (104) of the jacket (120) for primary air separated from the lower part (360) of the jet PA-PSF.

EFFECT: invention makes it possible to reduce NO_x emissions.

21 cl, 26 dwg