Apparatus for tilting low load coal nozzle

Details Apparatus for tilting low load coal nozzle Apparatus for tilting low load coal nozzle

1979-10-17

1981-12-08

Yuen, Henry C.

Liquid heaters and vaporizers

Regulation

Fuel and water

110347, 110261, 110263, 122479B, F22B 3742, F23D 100

Patent

active

043041965

ABSTRACT:
In a pulverized coal-fired steam generator having a generally vertical furnace (1) and a plurality of fuel-air admission assemblies (10) arrayed in a vertical windbox (40) in one or more walls of the furnace (1), at least one of the fuel-air admission assemblies (10) being a low load fuel-air admission assembly having a split coal bucket (30) with vertically adjustable upper and lower coal nozzles (32,34), the remaining assemblies having vertically adjustable single nozzle buckets (28), a tilt apparatus (50,60) for vertically adjusting all nozzles in unison in response to steam temperature at high loads and for vertically adjusting the lower coal nozzles of the split coal bucket of the low load fuel-air admission assembly independent of all remaining nozzles at low loads.

REFERENCES:
patent: 2363875 (1944-11-01), Kreisinger et al.
patent: 2575885 (1951-11-01), Mittendorf
patent: 2608168 (1952-08-01), Jackson
patent: 2649079 (1953-08-01), VanBrunt
patent: 2663287 (1953-12-01), Armacost
patent: 2685279 (1954-08-01), Caracristi
patent: 2800888 (1957-07-01), Miller et al.
patent: 2895435 (1959-07-01), Bogot et al.
patent: 3221714 (1965-12-01), Dickey

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