Air supply nozzle for a fluid bed furnace

Details Air supply nozzle for a fluid bed furnace Air supply nozzle for a fluid bed furnace

1988-02-04

1988-10-25

Favors, Edward G.

Furnaces

Including noncombustible fluid supply means

34 57A, 122 4D, 16510416, 2392883, 239567, 431170, F23L 1500

Patent

active

047795476

ABSTRACT:
An air supply nozzle for a fluid bed furnace comprises a tubular member attachable to a plate, forming the bottom of the furnace. The tubular member is upwardly closed by a lid and just below the same a number of air dispersing openings are provided. A wear-resisting ring of hard metal is attached to the upper end of the tubular member and has a thickness and a height noticeably exceeding the wall thickness of the tubular member. The void within the ring is filled with refractory concrete so a dome projecting above the ring is formed. The tubular member includes a un-perforated portion, which has such an extension that the tubular member, after a hard wear, may be cut, a lower stub of the tubular member remaining at the plate, while the top is substituted by a new portion. The two portions of the reconditioned tubular member are then connected by an internal supporting sleeve and tack welding.

REFERENCES:
patent: 1156845 (1915-10-01), James
patent: 2866413 (1958-12-01), Roquemore
patent: 3921913 (1975-11-01), Capy
patent: 4387667 (1983-06-01), Goodstine et al.
patent: 4628868 (1986-12-01), Eaton
patent: 4656971 (1987-04-01), Eaton et al.

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