| 摘要 |
<p>895,292. Glass-melting furnaces. PILKING- TON BROS. Ltd., JACK, H. R. S., JACQUEST, J. A. T., and ROTHWELL, G. Aug. 29, 1958 [Sept. 10, 1957], No. 28578/57. Class 51 (2). [Also in Group XXIII] In a vertical cylindrical furnace 1 for melting glass, the raw material is delivered tangentially suspended in an air/gas mixture through one or more burners 21 into a widened upper furnace section 4, and flung by the whirling, burning gases on to the furnace walls, from which the' molten glass flows out through an outlet 8 into a crucible 25. Each burner has a material supply hopper 17 with stirrer 18 feeding a Venturi mixing chamber supplied with air through pipe 20, the fuel gas being supplied through pipe 22. Additional inlets 30 arranged alternately with the burners supply raw material carried by streams of air. The furnace may be lined with sillimanite 6. In a modification, Fig. 3 (not shown), the outlet 8 is restricted forming a pool of glass which is heated additionally by electrodes extending through the furnace walls.</p> |
