Heating – Tumbler-type rotary - drum furnace – Having combustion products generated in or fed to drum
Patent
1981-11-23
1983-02-15
Camby, John J.
Heating
Tumbler-type rotary - drum furnace
Having combustion products generated in or fed to drum
34241, 2395535, 266173, 432113, F27B 736, F27B 706, F02M 4500, C21B 1106
Patent
active
043739083
ABSTRACT:
A port assembly for delivering fluid through a shell of a horizontal rotating reactor, such as a rotary kiln, is disclosed for purging from the port particulate material which enters port piping when no fluid is passing through the port. The port assembly comprises a cylindrical nozzle disposed in a port pipe, or port sleeve. The nozzle defines a nozzle orifice for discharging fluid into the reactor. A base member having a sloping surface is provided adjacent the nozzle with the sloping surface and nozzle cooperating to define a fluid distribution cavity with a thickness constantly varying from its circumference toward its center. The base member is sized as to define a fluid supply passage with facing surfaces of the port sleeve. Rest tabs along the circumference of the base member separate the base member from the nozzle while permitting communication between the fluid supply passage and fluid distribution cavity. A sealing ring is provided between the nozzle and base member and engages the port sleeve in sealing contact. Particulate material within the sleeve accumulates within the fluid supply passage and rests against the sealing ring as the port rotates with the reactor. Fluid under pressure purges the port by flowing through the fluid supply passage and diverts into the fluid distribution cavity. The flow entrains the particulate matter and carries it into the cavity for discharge from the port.
REFERENCES:
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patent: 4214707 (1980-07-01), Flaherty
Hartwig Walter J.
Petit Peter J.
Allis-Chalmers Corporation
Camby John J.
Conrad Timothy R.
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