Method for the melting, combustion or incineration of materials

Details Method for the melting, combustion or incineration of materials Method for the melting, combustion or incineration of materials

1994-05-05

1996-08-20

Hoang, Tu

Industrial electric heating furnaces

Plasma furnace device

373 20, 373 22, 432 13, H05B 700

Patent

active

055486118

ABSTRACT:
A plasma arc melter which is equipped with at least two transferred arc plasma torches of opposite polarities is used to melt normal batch materials for producing glass, ceramics, refractories and other such materials and for the recycling, combustion and/or vitrifying incineration of waste materials. To enhance the stability of the plasma jets, the anode torch is positioned farther above the surface of the materials being processed than the cathode torch and the materials being processed are introduced into the melter so that the materials first pass beneath the cathode torch. An oxidizing gas can be introduced into the zone between the torches in the region of the plasma jets to enhance the combustion process. For waste materials with a high organic content, a plasma arc afterburner can be used to further treat the exhaust gases from the melter.

REFERENCES:
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patent: 4545798 (1985-10-01), Matesa
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patent: 5028248 (1991-07-01), Williams et al.
patent: 5104432 (1992-04-01), Williams et al.
patent: 5256855 (1993-10-01), Heanley et al.
Michael J. Cusick; Remotely Coupled Transferred Arc Plasma For Materials Processing And Synthesis; pp. 64-69; Mar., 1992; Industrial Heating.

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