Powdered coal air dispersion nozzle

Details Powdered coal air dispersion nozzle Powdered coal air dispersion nozzle

1980-02-28

1981-10-27

Reeves, Robert B.

Fluid sprinkling, spraying, and diffusing

Combining of separately supplied fluids

Including whirler device to induce fluid rotation

431182, B05B 710

Patent

active

042968887

ABSTRACT:
An improved coal/air dispersion nozzle introduces fuel into the combustion chamber of a gas turbine engine as a finely atomized, dispersed spray for a uniform combustion. The nozzle has an inlet that receives finely powdered coal from a coal transport or coal/air fluidizer system and a scroll swirl generator is included within the nozzle to swirl a fluidized coal/air mixture supplied to the inlet of the nozzle. The scroll is in the form of a thin, flat metal sheet insert, twisted along its length, and configured to prevent build-up of coal particles within the nozzle prior to ejection from its outlet. Airblast air jets are included along the length of the nozzle body to assist in the discharge of the fluidized coal from the nozzle outlet and an angular pintle tip overlies the outlet to redirect coal/air mixture through a desired fluidized coal spray angle.

REFERENCES:
patent: 1909660 (1933-05-01), Coberly
patent: 2601000 (1952-06-01), Nerad
patent: 3076607 (1963-02-01), Cordier
patent: 3271304 (1966-09-01), Valdespino et al.
patent: 3589314 (1971-06-01), Tratz
patent: 3591086 (1971-07-01), Levin
patent: 3659786 (1972-05-01), Winkeler
patent: 3691765 (1972-09-01), Carlisle
patent: 3840181 (1974-10-01), Vier et al.
patent: 4157889 (1979-06-01), Bonnel

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