| 摘要 |
<p>1480935 Homogenizing molten glass NIKO. LAUS SORG GmbH & CO 21 Oct 1974 [25 Jan 1974] 45520/74 Heading ClM In the homogenizing of molten glass, a stream from a melting furnace 15 passes upwardly through a passage 1 in which it is additionally heated by electrodes 8, 9; then to a horizontal passage 2 arranged so that there is free space 3 above the glass stream; then to a vertically descending glass passage 4 of circular crosssection in which the downward flowing glass stream is mechanically agitated by an agitator 5 with vanes 16 extending out to the passage walls 17, the glass then passing through a short horizontal passage 6 to a further rising passage 7. The molten glass stream then passes to a glass feeder 13 which may be heated as at 14 to maintain the desired temperature. The apparatus is particularly useful for the addition of material for colouring the glass, the colour frit, molten stream or dye being metered and fed by a device 10 to drop onto the free surface of the glass stream and preferably on the upward flow of the molten glass above the two electrodes 8, 9. The changing of colour is facilitated by providing a chain opening 11 either in passage 6 or at the bottom of passage 7. The space 3 is preferably insulated by layers 12 and a vacuum may be applied to assist in removal of escaping gases.</p> |
