Method and arrangement for supplying air to recovery boiler

Details Method and arrangement for supplying air to recovery boiler Method and arrangement for supplying air to recovery boiler

1998-02-03

1999-12-28

Lazarus, Ira S.

Furnaces

Process

Supplying fluid

110238, 110244, 110297, 110345, 110234, 431 2, F23G 704, F23B 700

Patent

active

060066830

ABSTRACT:
A method and an arrangement for supplying air to a recovery boiler. In the method, the air is supplied to the recovery boiler at at least one air supply level so that four vortices are formed therein, the vortices spinning, in pairs, in opposite directions to one another so that any two adjacent vortices always spin in opposite directions to one another. The arrangement comprises nozzles that are arranged to blow air so that four vortices are formed in the recovery boiler, any two adjacent vortices always spinning in opposite directions to one another.

REFERENCES:
patent: 3215099 (1965-11-01), Coulter, Jr.
patent: 3413936 (1968-12-01), Matthews
patent: 4014296 (1977-03-01), Astrom
patent: 4389979 (1983-06-01), Saxlund
patent: 5007354 (1991-04-01), Uppstu
patent: 5205227 (1993-04-01), Khinkis et al.
patent: 5341753 (1994-08-01), Russell
patent: 5450803 (1995-09-01), Svensk et al.
patent: 5771817 (1998-06-01), Olausson et al.
"The Chemical Recovery Boiler Optimized Air System", from Tappi Notes, Jan. 10-15, 1988.

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