Process and device for disposal of filter materials

Details Process and device for disposal of filter materials Process and device for disposal of filter materials

1994-03-28

1996-10-15

Hoang, Tu

Industrial electric heating furnaces

Arc furnace device

Charging or discharging

373 9, 110345, F27D 300

Patent

active

055662005

ABSTRACT:
A process and low-shaft furnace for disposing of filter material. The material to be disposed of is charged via a charging device onto and/or into a slag bath in the furnace. Simultaneously, additives comprising fluxing agents, slag-making constituents and reducing agents are introduced into the slag via a separate immersion lance. Finally, during the introduction of the additives the variables forming the electrical resistance, essentially the electrodiameter, center distance between the electrodes, level of the slag bath, and the immersion depth of the electrodes in the bath are adjusted so that 70% of the electrical energy is introduced between the electrodes and 30% of the electrical energy is introduced between the electrodes and the metal bath on the hearth bottom.

REFERENCES:
patent: 3471626 (1969-10-01), Weese et al.
patent: 3585269 (1971-06-01), Krause
patent: 4816230 (1989-03-01), Bortnik et al.
patent: 5402439 (1995-03-01), Bullmann et al.
patent: 5410566 (1995-04-01), Steins et al.

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