Control of cyclone burner

Details Control of cyclone burner Control of cyclone burner

2007-08-28

2007-08-28

Rinehart, Kenneth (Department: 3749)

Furnaces

Process

Burning pulverized fuel

C110S342000, C110S266000

Reexamination Certificate

active

10515024

ABSTRACT:
A method of operating a combustion process in a cyclone burner, after start-up thereof, is provided. A fuel and a combustion gas is fed into a combustion chamber of the cyclone burner. The velocity of the combustion gas is kept between a lower and an upper limiting gas velocity. The stoichiometric condition (sub- or over-stoichiometric) is maintained by controlling the amount of fed oxygen to the amount of fed fuel. A shift is made to the other stoichiometric condition while preventing the combustion gas from obtaining a velocity outside the range defined by the lower and upper limiting gas velocity.

REFERENCES:
patent: 4033505 (1977-07-01), Lutes et al.
patent: 4585161 (1986-04-01), Kusama et al.
patent: 4765258 (1988-08-01), Zauderer
patent: 5029557 (1991-07-01), Korenberg
patent: 6027330 (2000-02-01), Lifshits
patent: 6202578 (2001-03-01), Ruottu et al.
patent: 36 03 788 (1987-08-01), None

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