Glass manufacturing – Processes – Fining or homogenizing molten glass
Patent
1980-05-30
1981-08-25
Kellogg, Arthur D.
Glass manufacturing
Processes
Fining or homogenizing molten glass
65 27, 65335, 165 2, 165101, 165103, 16510418, C03B 300
Patent
active
042857180
ABSTRACT:
The present invention relates to a method for preheating of pulverous materials in a tube heat exchanger prior to their introduction into a melting furnace, with particular application to the delivery by gravity of the vitrifiable starting materials through the heat exchanger to eliminate moisture therefrom prior to introduction of the essentially moisture-free materials into a tank furnace for glass making. The preheating serves to raise the entry-level temperature of the glass batch material and improve furnace fuel efficiency. The preheating involves recirculating at least part of the pulverous glass batch material through the open-ended tubes of the tubular heat exchanger to heat the same and remove moisture therefrom prior to initiating delivery of the glass batch material in preheated condition to the glass melting furnace. The present method is specifically directed at maintaining continuous operation of the preheater upon interruption of material flow through the preheater tubes for any reason. The subject invention, as hereinafter described, is of particular utility to the glass industry, but it is to be understood that it is also applicable to other types of preheaters and furnaces.
REFERENCES:
patent: 3607190 (1971-09-01), Penberthy
patent: 3880639 (1975-04-01), Bodner et al.
patent: 4045197 (1977-08-01), Tsai et al.
patent: 4113459 (1978-09-01), Mattmuller
patent: 4184861 (1980-01-01), Erickson et al.
Mathias Richard G.
Novak John D.
Rough, Sr. Robert R.
Small Owen M.
Willinger Sigmund
Click M. E.
Holler E. J.
Kellogg Arthur D.
Owens--Illinois, Inc.
Wilson D. H.
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