Method and apparatus for operating a vortex bed furnace

Details Method and apparatus for operating a vortex bed furnace Method and apparatus for operating a vortex bed furnace

1982-07-26

1984-10-09

Favors, Edward G.

Furnaces

Process

Burning pulverized fuel

110211, 110214, 110232, 110264, 122 4D, F23D 100

Patent

active

044754728

ABSTRACT:
Known vortex bed furnaces have a relatively high structural volume in relation to the firing performance. In addition, special devices are necessary for supplying the vortex bed with fuel and with sulphur-absorbing additives. Without subdividing the bed, a partial load can only be achieved with a vortex bed furnace which differs from the full load by only a small percentage. In order to solve these problems, it is proposed according to the invention that the fuel for the vortex bed should be blown with air via at least one dust burner, unsifted, into the combustion chamber, whereby the fine portion of the fuel conducted in is burnt in the dust flame and the coarse portion drops from the dust flame into the vortex bed. The dust burner serves on the one hand to load the vortex bed and on the other hand to increase the relative firing performance, and can be used to improve the suitability for partial load.

REFERENCES:
patent: 519530 (1894-05-01), Fulton
patent: 4168670 (1979-09-01), Wall et al.
patent: 4184455 (1980-01-01), Talmud et al.
patent: 4240364 (1980-12-01), Bryers et al.
patent: 4241670 (1980-12-01), Blaskowski
patent: 4259911 (1981-04-01), Jones
patent: 4306854 (1981-12-01), Dawson
patent: 4332207 (1982-06-01), Blaskowski et al.
patent: 4333405 (1982-06-01), Michelfelder et al.

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