Plasma heat treatment means and method

Details Plasma heat treatment means and method Plasma heat treatment means and method

1975-06-04

1976-11-02

Rosenberg, P. D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

13 9R, 75 10R, 219121P, 423335, 423539, 264 15, C21C 552, H05B 718

Patent

active

039895122

ABSTRACT:
A heater assembly comprising cathodic plasma generating means for generating a column of plasma, a plurality of anodic plasma torches the outlets of which are symmetrically disposed about the axis of the column and circuit means for energizing said generating means and said torches, the arrangement being such that in operation a current is passed simultaneously between the generating means and each of the torches by way of said column and jets of plasma from said outlets which merge with said column. A method for effecting the chemical or physical modification of a particulate material, in which the material is heated in a high enthalpy zone including a plasma column through which current passes from cathodic plasma generating means simultaneously to each of a plurality of anodic plasma torches the outlets of which are symmetrically disposed about the axis of the column, said zone also including the region of confluence of the column with jets of plasma from the torches.

REFERENCES:
patent: 3480426 (1969-11-01), Neuenschwander
patent: 3843351 (1974-10-01), Smith

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