Device and method for melting a substance with the occurrence of a low level of contamination
    1.
    发明授权
    Device and method for melting a substance with the occurrence of a low level of contamination 有权
    发生低水平污染物质的熔化装置和方法

    公开(公告)号:US07296441B2

    公开(公告)日:2007-11-20

    申请号:US10490803

    申请日:2002-09-12

    摘要: The invention relates to an apparatus and a method for low-contamination melting of high-purity, aggressive and/or high-melting glass or glass-ceramic. According to the invention, for this purpose a melt is heated in a crucible or melting skull crucible by means of high-frequency radiation and is mixed or homogenized in the melting crucible. It is preferable for a gas nozzle, from which gas bubbles, e.g. oxygen bubbles (known as O2 bubbling), escape into the melt, to be provided at the base of the crucible. This alone makes it possible to achieve surprising multiple benefits in the melting skull crucible. Firstly, unmelted batch which drops into the melt in solid form, for example from above, is melted down more quickly as a result of more intensive mixing with the liquid fraction of the melt, secondly the temperature distribution in the melt is made more even, thirdly a uniform distribution or mixing of different glass constituents is achieved, and fourthly the redox state of the glass can be adjusted.

    摘要翻译: 本发明涉及一种用于低纯度,侵蚀性和/或高熔点玻璃或玻璃陶瓷的低污染熔化的装置和方法。 根据本发明,为此目的,通过高频辐射将熔体在坩埚或熔化的颅骨坩埚中加热,并在熔化的坩埚中混合或均化。 优选气体喷嘴,例如气泡。 氧气泡(称为O 2起泡),逸出到熔体中,以提供在坩埚的底部。 这可以在熔化的头骨坩埚中实现惊人的多重益处。 首先,由于与熔体的液体部分更密切地混合,熔融物中的例如从上方落入熔体中的未熔化的批料更快地熔化,其次熔体中的温度分布更均匀, 第三,实现不同玻璃成分的均匀分布或混合,第四,可以调节玻璃的氧化还原状态。