Plasma fired feed nozzle

Details Plasma fired feed nozzle Plasma fired feed nozzle

1987-05-08

1988-08-02

Envall, Jr., Roy N.

Industrial electric heating furnaces

Plasma furnace device

Direct furnace

21912148, 2191215, 21912151, 21912137, H05H 126

Patent

active

047617934

ABSTRACT:
A plasma feed nozzle 3 for a furnace 1 which has a tubular mixing chamber 7 open at one end to the furnace, a plasma torch 13 which provides superheated gases axially to the central portion of the mixing chamber 7, shroud gases which enter the end of the mixing chamber opposite the end open to the furnace in such a way as to swirl as it moves axially through the mixing chamber 7 to provide a temperature profile which is substantially hotter in the central portion of the mixing chamber 7 than adjacent the wall portion thereof and a particulate feed nozzle 25 disposed to direct particulate material to the central portion of the mixing chamber.

REFERENCES:
patent: 4530101 (1985-07-01), Fey et al.
patent: 4554435 (1985-11-01), Wolf et al.
patent: 4611332 (1986-09-01), Santen
"Test Results on a Pilot-Scale Plasma-Fired Cupola for Iron Chip Melting" Dighe, et al.

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