Industrial electric heating furnaces – Plasma furnace device – Direct furnace
Patent
1981-09-15
1983-11-08
Envall, Jr., Roy N.
Industrial electric heating furnaces
Plasma furnace device
Direct furnace
H05B 700, H05H 100
Patent
active
044146728
ABSTRACT:
A plasma-arc furnace comprises a casing with plasma torches, particularly ree torches, mounted therewithin in symmetrical relationship relative to the vertical axis thereof. Each of these torches comprises a body provided with a nozzle and an axial conduit for feeding a plasma-forming gas therethrough, and a cylindrical electrode disposed within said conduit. According to the invention, the distance between the centers of working ends of electrodes disposed within adjacent plasma torches is not more than 15 diameters of the electrode.
REFERENCES:
patent: 1983544 (1934-12-01), Ingelsrud
patent: 3147329 (1964-09-01), Gage
patent: 3366725 (1968-01-01), Watterson
patent: 3483300 (1969-12-01), McGee
Bakumenko Sergei P.
Bukalo Alfred I.
Goncharenko Vladimir V.
Ivanchenko Stanislav S.
Latash Jury V.
Envall Jr. Roy N.
Institut Elektrosvarki Imeni E. O. Patona Akademii Nauk Ukrainsk
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