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US 4,309,204 AGranted
Process and apparatus for remelting scrap glass
AssigneeOwens-Corning Fiberglas Corporation
InventorRobert Brooks
Life of this patent
Estimating the term…
Abstract
A process and apparatus for remelting scrap glass fibers is disclosed. The removal of binder and remelting of the scrap are carried out in one operation, and the resulting molten scrap fibers are fed directly into a conventional glass melting furnace. Granular raw glass batch also is fed into the glass melting furnace.
Claims7
A process for recycling scrap glass including the steps of:
- feeding scrap glass to a scrap glass melting furnace;
- maintaining oxidizing conditions within the scrap furnace so as to burn-off organic binders or sizes;
- converting the scrap glass to a molten glass;
- and
- feeding the molten glass to a glass melting furnace which is also being fed granular raw glass batch, including the step of maintaining a temperature gradient between the top and bottom of the scrap furnace wherein the top of the scrap melter is up to 600.degree. F. cooler than the bottom.
2 more elements
A process for recycling scrap glass including the steps of:
- feeding scrap glass to a scrap glass melting furnace;
- maintaining oxidizing conditions within the scrap furnace so as to burn-off organic binders or sizes;
- converting the scrap glass to a molten glass;
- and
- feeding the molten glass to a glass melting furnace which is also being fed granular raw glass batch, wherein the top of the scrap melter is maintained at 2200.degree. F. and the bottom at 2500.degree. F., thereby maintaining a temperature gradient therebetween.
2 more elements
Dependencies are inferred from the claim text.