Glass manufacturing – Processes – Operating under inert or reducing conditions
Patent
1982-09-07
1984-02-07
Kellogg, Arthur D.
Glass manufacturing
Processes
Operating under inert or reducing conditions
65134, 65135, 65136, C03B 500
Patent
active
044301090
ABSTRACT:
A method and apparatus for melting thermoplastic material is disclosed utilizing, in a preferred embodiment, a vessel having a bottom wall and upstanding sidewalls. A protective liner for the vessel is provided, being formed of corrosion resistant material. The furnace may include both through-the-batch and floor electrodes, and also hot spot fining to a conductive outlet channel.
A method is set forth for operating the furnace described herein utilizing symmetrical, below the batch heat dissipation for accelerated melting. In order to protect the liner, which in some instances may be fabricated from an oxidizable refractory metal, start-up burners are operated under a reduced oxygen supply.
REFERENCES:
patent: 1421211 (1922-06-01), Good
patent: 3325268 (1967-06-01), Penberthy
patent: 3656924 (1972-04-01), Chapman
Corning Glass Works
DeLuca J. P.
Kellogg Arthur D.
Turner B. R.
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