Waste vitrification melter

Details Waste vitrification melter Waste vitrification melter

1994-11-08

1997-07-01

Czaja, Donald E.

Glass manufacturing

With signal, indicator, inspection means, register, or recorder

65327, 65347, 65356, 588201, 588900, C03B 544, C03B 5167

Patent

active

056433506

ABSTRACT:
A glass melter for vitrifying material including radioactive and hazardous materials. In one embodiment, the melter comprises an inner vessel or container having a solidified glass skull, at least one pair of vertically-oriented, retractable electrodes, a first wall spaced apart from said inner vessel to define a dry annulus therebetween for radiatively cooling the inner vessel, and a second wall spaced apart from said first wall to define a second annulus that serves as a water jacket when filled with water. Each electrode has a protective sleeve therearound with means formed therebetween for passing a purging gas therethrough. A central access nozzle allows waste material and glass formers to be fed into the inner vessel while simultaneously venting the off-gas generated in the inner vessel. Also, the dry annulus can have fluid circulating therethrough for regulated cooling or leak detection. An alternative embodiment contains a top entry glass tap, allowing the removal of vitrifiable material without penetrating the skull of the melter. Another embodiment provides a retractable oxygen lance which provides oxygen control to both the atmosphere above the batch and the batch itself, and a dual melt zone drain assembly which can provide enough energy from cold startup to activate the electrodes. The drain assembly also has a separately heated nozzle which, when deenergized, prevents material from exiting the melter. The melter includes, in the preferred embodiment, a bottom electrode that can provide direct heat input at the drain orifice.

REFERENCES:
patent: 469454 (1892-02-01), Rogers
patent: 1063483 (1913-06-01), Weintraub
patent: 1394677 (1921-10-01), Hutton
patent: 1438936 (1922-12-01), Eimer
patent: 1956171 (1934-04-01), Hitner
patent: 2141425 (1938-12-01), Wadsworth
patent: 2186718 (1940-01-01), Ferguson
patent: 2789152 (1957-04-01), Ham et al.
patent: 2958719 (1960-11-01), Beecher
patent: 3085408 (1963-04-01), Arbeit
patent: 3266881 (1966-08-01), Novack et al.
patent: 3580976 (1971-05-01), De Bussy
patent: 3669435 (1972-06-01), Silverberg
patent: 3735010 (1973-05-01), Turpin
patent: 4065634 (1977-12-01), Beizerov et al.
patent: 4460398 (1984-07-01), Sasaki
patent: 4471488 (1984-09-01), Reboux
patent: 4475206 (1984-10-01), Dietze et al.
patent: 4600425 (1986-07-01), Krumwiede et al.
patent: 4627069 (1986-12-01), Harvey et al.
patent: 4923508 (1990-05-01), Diehm et al.
patent: 4965812 (1990-10-01), Sorg et al.
patent: 4983198 (1991-01-01), Ogino
patent: 5028248 (1991-07-01), Williams et al.
patent: 5040773 (1991-08-01), Hackman
patent: 5060914 (1991-10-01), Wang et al.
patent: 5100453 (1992-03-01), Richards
patent: 5120342 (1992-06-01), Richards
patent: 5120352 (1992-06-01), Jackson et al.
patent: 5149488 (1992-09-01), Dickson
patent: 5188649 (1993-02-01), Macedo et al.
patent: 5188794 (1993-02-01), Daussan et al.
patent: 5304701 (1994-04-01), Igarashi

Affiliated with

Also associated with

Rating

Waste vitrification melter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Waste vitrification melter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Waste vitrification melter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-593330