FIELD: engines and pumps, chemistry.
SUBSTANCE: in compliance with this invention, the nozzle is primarily used in heat engineering to feed fluidising gas in the boiler furnace with fluidised layer. In compliance with the most preferable version, the said nozzles are also used for removal of the furnace solid particles shifted down to the furnace bottom. The enclosure comprises nozzle chamber (6) and channel (8, 10) terminated in the nozzle blow-in hole. Note that the nozzle chamber and channel are limited, from above, by cover (12) and protective outer casing (22) attached from outside to cover (12).
EFFECT: reduced chemical corrosion.
11 cl, 6 dwg
