Plasma reactor used to treat powder material at very high temper

Details Plasma reactor used to treat powder material at very high temper Plasma reactor used to treat powder material at very high temper

1989-08-29

1991-05-21

Paschall, M. H.

Electric heating

Metal heating

By arc

21912148, 21912152, 75 1019, 75 1022, 373 22, B23K 900

Patent

active

050177540

ABSTRACT:
Disclosed is a plasma reactor for use to treat ores or other material at a very high temperature in order to physically or chemically transform the same. The reactor comprises a vertical, electrically insulated sleeve disposed at the upper end with a hollow torch of a conventional structure, for use to generate a plasma column. A gas is tangentially injected into the torch to create a vortex inside the same. The material to be treated is dropped, in powder form, vertically downward inside the sleeve from the upper end thereof, beside the hollow torch, so as to form a substantially uniform cylindrical curtain of particles falling down into the sleeve. The particles that are centrifugally projected against the internal wall of the sleeve by the vortex escaping from the hollow torch, entirely cover the internal wall of the sleeve and shield, while simultaneously being treated by heat generated by the plasma arc column. The reactor further comprises a crucible positioned under the sleeve to collect the treated particles in molten form, which drip down from the sleeve at the lower end thereof. The plasma column may be generated by the hollow torch exclusively, when the reactor is intended to be used in a non-transferred arc mode. The reactor may also be used in a transferred arc mode. In such a case, the arc is transferred to a melt contained in the crucible. Another electrode is provided for this purpose at the bottom of this crucible, and is electrically connected to the power supply.

REFERENCES:
patent: 3743781 (1973-07-01), Holden
patent: 3856918 (1974-12-01), Skrivan et al.
patent: 3932171 (1976-01-01), Tylko
patent: 4002466 (1977-01-01), MacRae et al.
patent: 4154972 (1979-05-01), Tylko
patent: 4361441 (1982-11-01), Tylko
patent: 4466824 (1984-08-01), Gauvin et al.
patent: 4533385 (1985-08-01), Lugscheider et al.
patent: 4644557 (1987-02-01), Ebeling et al.
patent: 4864096 (1989-09-01), Wolf et al.

Affiliated with

Also associated with

Rating

Plasma reactor used to treat powder material at very high temper does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Plasma reactor used to treat powder material at very high temper, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plasma reactor used to treat powder material at very high temper will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-240042