Fuel-staging coal burner

Details Fuel-staging coal burner Fuel-staging coal burner

1978-06-29

1980-06-10

Favors, Edward G.

Furnaces

Utilizing powdered fuel

Having rotary flow means

110261, 431183, 431284, F23K 500

Patent

active

042067120

ABSTRACT:
A fuel-staging burner assembly and method in which a burner nozzle has separate, concentrically disposed elements to burn coarse and fine coal particles under different combustion conditions to reduce the production of nitrogen oxides from the combustion of coal as a fuel. The burner assembly further includes a control nozzle for maintaining a swirling motion in the combustion flame and a separate, axially-movable adjustable sleeve for regulating the quantity flow of turbulence-free combustion-supporting air.

REFERENCES:
patent: 1163650 (1915-12-01), Fogler
patent: 2118600 (1938-05-01), Frisch
patent: 2823628 (1958-02-01), Poole et al.
patent: 3049085 (1962-08-01), Musat et al.
patent: 3145670 (1964-08-01), Copian et al.
patent: 3256842 (1966-06-01), Vigneroh et al.
patent: 3393650 (1968-07-01), Daman et al.
patent: 3918834 (1975-11-01), Sigal et al.
patent: 4147116 (1979-04-01), Graybill

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