SPRAYING NOZZLE, SPRAYING UNIT AND METHOD OF OPERATING SAID UNIT AND NOZZLE Russian patent published in 2012 - IPC B05B7/04 

FIELD: process engineering.

SUBSTANCE: invention relates to spraying equipment to be used, for example, in ash catching. Spraying nozzle has one of its flow channels is a self-cleaning one and/or incorporates cleaner for at least one flow channel. At least one of said flow channels has rounded tapered cross section of side opposite the discharge or mixing chamber. Fluid flows via flow channel to mixing chamber inlet without flow separation. In operation of spraying nozzle, fluid cleaners or cleaning particles are fed into fluid flow line. Besides, fluid flow line may incorporate the line to feed compressed gas to mixing chamber and into line to feed fluid to mixing chamber. Also, fluid flow direction is varied in cleaning conditions.

EFFECT: preventing sedimentation in flow channels, long-term operation with no preventive maintenance.

39 cl, 7 dwg