Apparatus for melting and refining silica-based glass

    公开(公告)号:US09637406B2

    公开(公告)日:2017-05-02

    申请号:US13832829

    申请日:2013-03-15

    IPC分类号: C03B5/225 C03B5/173 C03B5/187

    摘要: An apparatus for melting and refining a silica-based glass composition includes a vertical first reaction chamber having an input adjacent to a lower end for receiving glass-forming components. The glass-forming components are heated to elevated temperature during upward flow through the vertical first reaction chamber to form a glass precursor melt adjacent to an upper end of the vertical first reaction chamber. A vertical second reaction chamber has an input adjacent to an upper end and an output adjacent to a lower end for delivering glass melt. A cross passage connects the upper end of the vertical first reaction chamber to the upper end of the vertical second reaction chamber such that the precursor melt flows from the vertical first reaction chamber through the cross passage and then through the vertical second reaction chamber to homogenize the precursor melt. Vacuum preferably is applied to the cross passage both to assist upward flow through the vertical first reaction chamber, and to assist refining of the precursor melt during such upward flow and during flow through the cross passage.

    Apparatus For Melting And Refining Silica-Based Glass
    2.
    发明申请
    Apparatus For Melting And Refining Silica-Based Glass 有权
    熔融和精炼二氧化硅玻璃的设备

    公开(公告)号:US20140260433A1

    公开(公告)日:2014-09-18

    申请号:US13832829

    申请日:2013-03-15

    IPC分类号: C03B5/225

    摘要: An apparatus for melting and refining a silica-based glass composition includes a vertical first reaction chamber having an input adjacent to a lower end for receiving glass-forming components. The glass-forming components are heated to elevated temperature during upward flow through the vertical first reaction chamber to form a glass precursor melt adjacent to an upper end of the vertical first reaction chamber. A vertical second reaction chamber has an input adjacent to an upper end and an output adjacent to a lower end for delivering glass melt. A cross passage connects the upper end of the vertical first reaction chamber to the upper end of the vertical second reaction chamber such that the precursor melt flows from the vertical first reaction chamber through the cross passage and then through the vertical second reaction chamber to homogenize the precursor melt. Vacuum preferably is applied to the cross passage both to assist upward flow through the vertical first reaction chamber, and to assist refining of the precursor melt during such upward flow and during flow through the cross passage.

    摘要翻译: 用于熔化和精制二氧化硅基玻璃组合物的装置包括垂直的第一反应室,其具有与用于接收玻璃形成组分的下端相邻的输入。 在向上流动通过垂直的第一反应室的过程中将玻璃形成组分加热至升高的温度,以形成邻近垂直的第一反应室的上端的玻璃前体熔体。 垂直的第二反应室具有与上端相邻的输入和与下端相邻的输出,用于输送玻璃熔体。 横向通道将垂直第一反应室的上端连接到垂直第二反应室的上端,使得前体熔体从垂直的第一反应室通过交叉通道,然后通过垂直的第二反应室,使 前体熔体。 优选地将真空施加到十字通道,以帮助向上流动通过垂直的第一反应室,并且在这种向上流动期间和在流过十字通道期间辅助前体熔体的精炼。