Burner

Details Burner Burner

1986-05-14

1987-10-13

Focarino, Margaret A.

Combustion

Mixer and flame holder

239427, 239433, F23D 1462

Patent

active

046995870

ABSTRACT:
A fuel supplied through a fuel feed bore of a burner plug and a spray medium supplied through spray medium feed holes thereof are mixed initially in primary mixing chambers in a burner plate and further mixed in a secondary mixing chamber in a burner tip and the fuel mixture thus obtained is sprayed through spray holes of the burner tip. Each of the primary mixing chambers is inclined at a predetermined angle relative to the axis of the burner plate so that the fuel mixture is caused to swirl in a secondary mixing chamber; or the burner plate and the burner tip are so interconnected to each other that the extension of the axis of each primary mixing chamber in the burner plate intersects substantially the midpoint between the adjacent spray holes of the burner tip and consequently the fuel mixture discharged from the primary mixing chambers impinges on the inner wall of the secondary mixing chamber in the burner tip, whereby the ability to atomize a slurry fuel is improved. Furthermore, thin ceramic layers are disposed at portions of the burner which are subjected excessive wear while the portions of the burner which are subjected to heavy thermal loads are made of a hard alloy so as to support the thin ceramic layers, whereby resistance to wear and safety of the burner are enhanced.

REFERENCES:
patent: 3446439 (1969-05-01), Campbell
patent: 4002297 (1977-01-01), Pillard
patent: 4160526 (1979-07-01), Flanagan
patent: 4337898 (1982-07-01), Cleall
patent: 4485968 (1984-12-01), Berthiaume
patent: 4516728 (1985-05-01), Whinfrey
patent: 4601428 (1986-07-01), Kurogo
patent: 4614490 (1986-09-01), Kiczek et al.

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