Vacuum degassing method for molten glass
    1.
    发明授权
    Vacuum degassing method for molten glass 有权
    熔融玻璃真空脱气方法

    公开(公告)号:US06318126B1

    公开(公告)日:2001-11-20

    申请号:US09327680

    申请日:1999-06-08

    IPC分类号: C03B5225

    摘要: A vacuum degassing method for molten glass, which comprises introducing molten glass into a vacuum degassing apparatus, subjecting it to degassing treatment under a predetermined reduced pressure condition and then withdrawing it for a subsequent step, wherein during the degassing treatment, a metal compound which is at least one compound of metal selected from the group consisting of aluminum, titanium, silicon, zinc, magnesium, iron, chromium, cobalt, cerium and calcium, is supplied from outside of the vacuum degassing apparatus to the surface of a bubble layer formed in the molten glass to diminish or extinguish the bubble layer.

    摘要翻译: 一种用于熔融玻璃的真空脱气方法,其包括将熔融玻璃引入真空脱气装置中,在预定的减压条件下对其进行脱气处理,然后将其抽出用于随后的步骤,其中在脱气处理期间, 从真空脱气装置的外部将至少一种选自铝,钛,硅,锌,镁,铁,铬,钴,铈和钙的金属化合物供给到形成于 熔融玻璃减少或消除气泡层。

    Vacuum degassing apparatus for molten glass
    3.
    发明授权
    Vacuum degassing apparatus for molten glass 有权
    熔融玻璃真空脱气装置

    公开(公告)号:US07007514B2

    公开(公告)日:2006-03-07

    申请号:US10256014

    申请日:2002-09-27

    IPC分类号: C03B5/225

    CPC分类号: C03B5/2252 C03B5/205

    摘要: A vacuum degassing apparatus for molten glass includes a vacuum housing which is evacuated to be depressurized therein; a vacuum degassing vessel which is provided in the vacuum housing to vacuum-degas molten glass as the molten glass flows therein; an uprising pipe which connects to the vacuum degassing vessel, and sucks and draws up undegassed molten glass to introduce the undegassed molten glass into the vacuum degassing vessel; and a downfalling pipe which connects to the vacuum degassing vessel and draws down the degassed molten glass from the vacuum degassing vessel to discharge the degassed molten glass. The cross sectional area of the path at the upper end portion of the uprising pipe is larger than the cross sectional area of the path at the lower end portion of the uprising pipe.

    摘要翻译: 用于熔融玻璃的真空脱气装置包括抽真空以在其中减压的真空壳体; 真空脱气容器,其设置在所述真空壳体中以随着所述熔融玻璃流入其中而对熔融玻璃进行真空脱气; 连接到真空脱气容器的起立管,并且抽吸并抽取未脱气的熔融玻璃以将未脱气的熔融玻璃引入真空脱气容器中; 以及连接到真空脱气容器并且从真空脱气容器排出脱气的熔融玻璃以排出脱气的熔融玻璃的下降管。 上升管的上端部的路径的截面积大于上升管的下端部的路径的截面积。

    Vacuum degassing apparatus for molten glass
    5.
    发明申请
    Vacuum degassing apparatus for molten glass 有权
    熔融玻璃真空脱气装置

    公开(公告)号:US20050160769A1

    公开(公告)日:2005-07-28

    申请号:US11086233

    申请日:2005-03-23

    IPC分类号: C03B5/20 C03B5/225 C03B5/16

    CPC分类号: C03B5/2252 C03B5/205

    摘要: A vacuum degassing apparatus for molten glass, comprising: a vacuum housing which is evacuated to be depressurized therein; a vacuum degassing vessel which is provided in the vacuum housing to vacuum-degas molten glass as the molten glass flows therein; an uprising pipe which connects to the vacuum degassing vessel, and sucks and draws up undegassed molten glass to introduce the undegassed molten glass into the vacuum degassing vessel; and a downfalling pipe which connects to the vacuum degassing vessel and draws down the degassed molten glass from the vacuum degassing vessel to discharge the degassed molten glass; wherein the cross sectional area of the path at the upper end portion of said uprising pipe is larger than the cross sectional area of the path at the lower end portion of said uprising pipe.

    摘要翻译: 一种用于熔融玻璃的真空脱气装置,包括:抽真空以在其中减压的真空壳体; 真空脱气容器,其设置在所述真空壳体中以随着所述熔融玻璃流入其中而对熔融玻璃进行真空脱气; 连接到真空脱气容器的起立管,并且抽吸并抽取未脱气的熔融玻璃以将未脱气的熔融玻璃引入真空脱气容器中; 以及连接到真空脱气容器并且从真空脱气容器中抽出脱气的熔融玻璃以排出脱气的熔融玻璃的下降管; 其特征在于,所述上升管的上端部的通路的截面积大于所述上升管的下端部的路径的截面积。

    Vacuum degassing apparatus for molten glass
    7.
    发明授权
    Vacuum degassing apparatus for molten glass 有权
    熔融玻璃真空脱气装置

    公开(公告)号:US06405564B1

    公开(公告)日:2002-06-18

    申请号:US09473680

    申请日:1999-12-29

    IPC分类号: C03B5225

    摘要: A vacuum degassing apparatus for molten glass according to the present invention comprises a vacuum housing where a vacuum is created; a vacuum degassing vessel housed in the vacuum housing to degas the molten glass; an introduction device communicated to the vacuum degassing vessel so as to introduce untreated molten glass into the vacuum degassing vessel, or preferably an uprising pipe; and a discharge device to discharge treated molten glass from the vacuum degassing vessel, or preferably a downfalling pipe. In the apparatus, at least a portion of at least one of the vacuum degassing vessel, the uprising pipe and the downfalling pipe that directly contact with the molten glass is constituted by refractory material having a porosity of not greater than 5%. The apparatus can increase quantity of flow of the molten glass and consequently a degassing throughput of the molten glass in comparison with prior art, having the same size and the same pressure loss. The apparatus can further increase the quantity of flow and the degassing throughput without making the size of the apparatus excessively larger.

    摘要翻译: 根据本发明的用于熔融玻璃的真空脱气装置包括:真空室,其中产生真空; 容纳在真空壳体中以对熔融玻璃进行脱气的真空脱气容器; 将引入装置传送到真空脱气容器,以将未处理的熔融玻璃引入真空脱气容器,或优选上升管中; 以及排出装置,用于从真空脱气容器排出经处理的熔融玻璃,或优选地是下降管。 在该装置中,与熔融玻璃直接接触的真空脱气容器,上升管和下降管中的至少一个的至少一部分由孔隙率不大于5%的耐火材料构成。 与现有技术相比,具有相同尺寸和相同压力损失的装置可以增加熔融玻璃的流动量,并因此提高熔融玻璃的脱气生产能力。 该装置可以进一步增加流量和脱气生产量,而不会使装置的尺寸过大。

    Vacuum degassing apparatus for molten glass
    9.
    发明授权
    Vacuum degassing apparatus for molten glass 有权
    熔融玻璃真空脱气装置

    公开(公告)号:US07650764B2

    公开(公告)日:2010-01-26

    申请号:US11086233

    申请日:2005-03-23

    IPC分类号: C03B5/16

    CPC分类号: C03B5/2252 C03B5/205

    摘要: A vacuum degassing apparatus for molten glass includes a vacuum housing which is evacuated to be depressurized therein; a vacuum degassing vessel which is provided in the vacuum housing to vacuum-degas molten glass as the molten glass flows therein; an uprising pipe which connects to the vacuum degassing vessel, and sucks and draws up undegassed molten glass to introduce the undegassed molten glass into the vacuum degassing vessel; and a downfalling pipe which connects to the vacuum degassing vessel and draws down the degassed molten glass from the vacuum degassing vessel to discharge the degassed molten glass. The cross sectional area of the path at the upper end portion of the uprising pipe is larger than the cross sectional area of the path at the lower end portion of the uprising pipe.

    摘要翻译: 用于熔融玻璃的真空脱气装置包括抽真空以在其中减压的真空外壳; 真空脱气容器,其设置在所述真空壳体中以随着所述熔融玻璃流入其中而对熔融玻璃进行真空脱气; 连接到真空脱气容器的起立管,并且抽吸并抽取未脱气的熔融玻璃以将未脱气的熔融玻璃引入真空脱气容器中; 以及连接到真空脱气容器并且从真空脱气容器排出脱气的熔融玻璃以排出脱气的熔融玻璃的下降管。 上升管的上端部的路径的截面积大于上升管的下端部的路径的截面积。

    Vacuum degassing apparatus for molten glass
    10.
    发明授权
    Vacuum degassing apparatus for molten glass 有权
    熔融玻璃真空脱气装置

    公开(公告)号:US6119484A

    公开(公告)日:2000-09-19

    申请号:US164356

    申请日:1998-10-01

    摘要: A vacuum degassing apparatus for molten glass includes a vacuum housing where a vacuum is created; a vacuum degassing vessel housed in the vacuum housing to degas the molten glass; an introduction device communicated to the vacuum degassing vessel so as to introduce untreated molten glass into the vacuum degassing vessel, or preferably an uprising pipe; and a discharge device to discharge treated molten glass from the vacuum degassing vessel, or preferably a downfalling pipe. In the apparatus, at least a portion of at least one of the vacuum degassing vessel, the uprising pipe and the downfalling pipe that directly contact the molten glass is constituted by refractory material having a porosity of not greater than 5%. The apparatus can increase quantity of flow of the molten glass and consequently a degassing throughput of the molten glass, having the same size and the same pressure loss. The apparatus can further increase the quantity of flow and the degassing throughput without making the size of the apparatus excessively larger.

    摘要翻译: 用于熔融玻璃的真空脱气装置包括:真空室,其中产生真空; 容纳在真空壳体中以对熔融玻璃进行脱气的真空脱气容器; 将引入装置传送到真空脱气容器,以将未处理的熔融玻璃引入真空脱气容器,或优选上升管中; 以及排出装置,用于从真空脱气容器排出经处理的熔融玻璃,或优选地是下降管。 在该装置中,直接接触熔融玻璃的真空脱气容器,上升管和下降管中的至少一个的至少一部分由孔隙率不大于5%的耐火材料构成。 该装置可以增加熔融玻璃的流动量,并因此增加具有相同尺寸和相同压力损失的熔融玻璃的脱气生产量。 该装置可以进一步增加流量和脱气生产量,而不会使装置的尺寸过大。