| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a furnace bottom nozzle part structure of a glass melting furnace capable of heating efficiently glass into which a liquid to be treated is intermingled to raise a temperature in a short time without being influenced by the concentration of a platinum group element in the glass on a bottom part of the melting furnace body, thereby performing stably extraction thereof, and improving reliability. <P>SOLUTION: When a strainer 10 is set in a conical space 9c of a conical electrode part 9d of a bottom electrode 9, a circulation passage 13 having a uniform width and leading to a downflow nozzle 12 is formed between a strainer body 10a outer periphery and a curved surface part 9f and a conical inner surface 9e. Further, a high frequency induction heating coil 14 as a heating means is arranged on the outer periphery of the conical electrode part 9d, and a high frequency induction heating coil 15 for the nozzle as a heating means is arranged on the outer peripheral part of the downflow nozzle 12. <P>COPYRIGHT: (C)2013,JPO&INPIT |
