Apparatus for vitrification of fine particulate matter

Details Apparatus for vitrification of fine particulate matter Apparatus for vitrification of fine particulate matter

1994-12-13

1996-03-12

Bennett, Henry A.

Furnaces

Refuse incinerator

With electric heater

110255, F23G 500, F23G 510, F23G 512

Patent

active

054977100

ABSTRACT:
The present invention provides an apparatus for the melting and subsequent solidification of fine particulate material by means of a plasma torch. The fine particulate material is introduced into a furnace having a plasma torch to a depth sufficient to cover the plasma flame produced by the torch. When operative, the torch generates a heat at low gas flow, which both allows the fine particulate material to rest with little disturbance and to transfer large amounts of heat energy to the fine particulate, effectively preheating the fine particulate material for more efficient melting. The melt may, for example, be solidified into a block for building use, into fibers by means of pressurized air passed through a venturi nozzle or into other useful forms.

REFERENCES:
patent: 4725288 (1988-02-01), Bougard
patent: 4770109 (1988-09-01), Schlienger
patent: 4989522 (1991-02-01), Cline et al.
patent: 4998486 (1991-03-01), Dighe et al.
patent: 5143000 (1992-09-01), Camacho
patent: 5280757 (1994-01-01), Carter et al.
patent: 5319176 (1994-06-01), Alvi et al.

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