Patent ID: 8287803

Claim:
A method of installing a blaster nozzle in a refractory lined enclosure housing, the blaster nozzle being effective to assist in the pneumatic removal of cloggings and/or cakings during the transport of particulate matter through the enclosure housing, the method comprising: (a) providing, outside an outer shell of the enclosure housing, the blaster nozzle, the blaster nozzle comprising a nozzle head, a flange member and a connection tube, the flange member being connected to the nozzle head, the connection tube extending from the flange member for connecting the blaster nozzle to an air cannon, the nozzle head comprising a refractory concrete having about 4-20% by volume metal fibers therein, the nozzle head having an inner surface which defines a passageway extending from adjacent the flange member for conduction of, and contact with, high-pressure air, the nozzle head having an orifice at a distal end of the passageway where high-pressure air is expellable from the blaster nozzle, at least a majority of said inner surface being said refractory concrete, the nozzle head having an outer surface of said refractory concrete, the orifice, including the inner and outer surfaces thereof, being made entirely of said refractory concrete, the enclosure housing, including the outer shell thereof, having a hole sized to accommodate the blaster nozzle; (b) from outside the outer shell and through the hole in the outer shell, installing the blaster nozzle into the hole; and (c) attaching the flange member to the outer shell.