Burner

Details Burner Burner

1996-09-13

1999-07-27

Jones, Larry

Combustion

Means at chamber outlet establishing combustion pressure...

Chamber outlet forms jet nozzle

431 13, 431181, 431352, F23R 300

Patent

active

059279605

ABSTRACT:
A burner arrangement for ferrous scrap melting and the like includes a fuel outlet and a primary oxidant supply outlet communicating with a mixing chamber. The burner also has a main outlet and secondary oxidant supply outlets. In addition there is a convergent-divergent nozzle communicating with the mixing chamber. Valves control the flow of gaseous fuel to the fuel outlet, and the flow of primary and secondary oxidant to the primary and secondary oxidant supply outlets. In operation, oxidant is supplied to the primary and secondary outlets, hot flame or combustion gases are accelerated through the nozzle with the result that a sonic or supersonic velocity can be created. Such high velocities facilitate the penetration of the combustion gases through a slag layer into molten metal.

REFERENCES:
patent: Re33464 (1990-11-01), Gitman
patent: 3385381 (1968-05-01), Calaman
patent: 4622007 (1986-11-01), Gitman
patent: 4752330 (1988-06-01), Gitman
patent: 4865297 (1989-09-01), Gitman
patent: 5062789 (1991-11-01), Gitman
patent: 5635130 (1997-06-01), Leczo et al.
patent: 5714113 (1998-02-01), Gitman et al.

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