Plasma melting furnace arrangement

Details Plasma melting furnace arrangement Plasma melting furnace arrangement

1983-09-27

1985-10-08

Andrews, Melvyn J.

Industrial electric heating furnaces

Plasma furnace device

Direct furnace

266200, 266900, 266901, 373 22, H05B 700

Patent

active

045464839

ABSTRACT:
There is disclosed a plasma melting furnace through the side wall of whose cylindrical furnace body a plurality of downwardly directed plasma burners are guided, whose mouths project into the furnace interior. In order to avoid several rechargings, which has been common so far, in particular with scrap of low apparent density, and to be able to charge continuously, without endangering the plasma burners by electric flashovers between parts of the charge material and the burner mouths or falling-down materials and by maintaining the inert gas atmosphere within the furnace, the cover of the furnace interior comprises a shoulder-likely re-entering part projecting upwardly. This part is closeable by a lid and delimits a central charging opening whose diameter is smaller than the diameter of the circle on which the mouths of the plasma burners are arranged.

REFERENCES:
patent: 3422206 (1969-01-01), Baker et al.
patent: 3536343 (1970-10-01), Casperson et al.
patent: 3756582 (1973-09-01), Overmyer et al.
patent: 4006284 (1977-02-01), Segsworth et al.
patent: 4018973 (1977-04-01), Paton et al.
patent: 4414673 (1983-11-01), Lugscheider et al.

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