Furnaces – Process – Burning pulverized fuel
Patent
1987-03-16
1987-12-29
Yuen, Henry C.
Furnaces
Process
Burning pulverized fuel
110264, 122449, F23D 100
Patent
active
047153016
ABSTRACT:
A furnace (10) in which pulverized coal is burned in suspension. The coal is introduced along with primary air, tangent to an imaginary circle (42). The auxiliary air is introduced tangent to an imaginary circle (44) directly above the primary air, in a direction of rotation opposite that of the primary air. The auxiliary air is directed tangent to a circle of greater diameter than that of the primary air. There are a plurality of alternating levels within the furnace where primary air (38), and then auxiliary air (40), is introduced.
REFERENCES:
patent: 3224419 (1965-12-01), Lowenstein et al.
patent: 4294178 (1981-10-01), Borio et al.
patent: 4304196 (1981-12-01), Chadshay et al.
patent: 4434747 (1984-03-01), Chadshay
patent: 4438709 (1984-03-01), Borio et al.
patent: 4501204 (1985-02-01), McCartney et al.
Anderson David K.
Bianca Joseph D.
Combustion Engineering Inc.
Fournier, Jr. Arthur E.
Yuen Henry C.
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