Coal firing device

Details Coal firing device Coal firing device

1995-07-21

1998-05-26

Lazarus, Ira S.

Furnaces

Utilizing powdered fuel

Having rotary flow means

110263, 110260, 110261, 431 9, 431 10, 431173, F23D 102

Patent

active

057551650

ABSTRACT:
An improvement of a coal firing device applied to coal gasifiers, boilers for power generation, etc. On the inner walls of a ceiling portion (4) of a firing furnace (3) and of a throat portion (2) thereabove, and of a diffuser portion (6) further thereabove, where necessary, plate-like vortex breaker(s) (1A, 1B) is/are provided. Vortex flow of gas in the vicinity of the inner wall surface around the throat portion (2) is thereby weakened and molten slag sticking on the wall surface is suppressed to be pushed up by the gas. There occurs neither staying of molten slag at the diffuser portion (6) nor scattering of slag, and blockade of furnace due to solid-phase slag does not occur.

REFERENCES:
patent: 4352675 (1982-10-01), Seipenbusch et al.
patent: 4428727 (1984-01-01), Deussner et al.
patent: 4654001 (1987-03-01), LaRue
patent: 4784600 (1988-11-01), Moreno
patent: 4841727 (1989-06-01), Wittchow et al.
patent: 4930430 (1990-06-01), Allen et al.
patent: 5295449 (1994-03-01), Maeda et al.

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