Glass melting furnace and process for improving the quality of glass
    26.
    发明授权
    Glass melting furnace and process for improving the quality of glass 失效
    玻璃熔炼炉和提高玻璃质量的工艺

    公开(公告)号:US4046547A

    公开(公告)日:1977-09-06

    申请号:US694863

    申请日:1976-06-10

    申请人: Helmut Pieper

    发明人: Helmut Pieper

    IPC分类号: C03B5/027 C03B5/187 C03B5/26

    摘要: Glass is melted in a furnace having a melting zone and one or more processing zones adjacent to the melting zone. A volume of molten glass is caused to flow from the melting zone to the processing zone in a volume which exceeds the volume of glass withdrawn from the processing zone. The excess volume of glass is returned to the melting zone or to a separate refining zone. The furnace includes a melting section and at least one adjacent processing tank communicating with the melting section through a passage. A recirculating passage is provided between the processing tank and the melting section and additional means are provided to establish a circulating flow of molten glass via the recirculating passage.

    摘要翻译: 玻璃在具有熔化区和邻近熔化区的一个或多个处理槽的炉中熔化。 熔融玻璃通过通道从熔化区流到处理槽。 熔融玻璃的一部分从处理槽的顶部排出并再循环到处理槽或单独的精炼区。 熔炉包括熔化部分和至少一个相邻的处理罐,其通过通道与熔化部分连通。 再循环通道连接处理槽的顶部和连接熔化部分和处理槽的通道。 提供附加装置以建立经由再循环通道的熔融玻璃的再循环流。

    Method and apparatus for manufacturing high melting point glasses with
volatile components
    27.
    发明授权
    Method and apparatus for manufacturing high melting point glasses with volatile components 失效
    用于制造具有挥发性组分的高熔点玻璃的方法和设备

    公开(公告)号:US6085551A

    公开(公告)日:2000-07-11

    申请号:US54294

    申请日:1998-04-02

    摘要: In the manufacturing of high melting point glasses with volatile components, in particular of glasses from the group of boron glasses and borosilicate glasses, a furnace is provided that has a superstructure, fossil fuel burners, and a melting tank. In front of a conditioning zone and a throat leading to an extraction zone, a step-shaped raised area in the bottom is provided which is formed continuously over the complete width of the melting tank. In order to suppress segregation or, respectively, phase separation, to protect the furnace construction materials and to enable problem-free operation, a temperature of at least 1600.degree. C. is produced in the superstructure by means of oxygen-rich oxidation gas, a raised area is provided in the form of a refining bank with a step in front of it, the step being at least 150 mm high and from which at least one row of booster electrodes projects upwards, before the step, the melt flows over at least one row of bubblers located in the bottom, and behind the step, the glass flows in a highly heated state over the refining bank for a distance of 800 mm to 2000 mm, the upper side of said bank being at a maximum distance "T" of 300 mm from the glass bath surface.

    摘要翻译: 在具有挥发性成分的高熔点玻璃的制造中,特别是来自硼玻璃和硼硅酸盐玻璃的玻璃中,提供了具有上层结构,化石燃料燃烧器和熔化槽的炉。 在调节区域和通向提取区域的喉管前方,提供了在熔池的整个宽度上连续形成的底部的台阶形凸起区域。 为了抑制偏析或相分离,为了保护炉结构材料并使其无故障运行,通过富氧氧化气体在上层结构中产生至少1600℃的温度, 凸起区域以其前面的台阶形式提供为精制库,该步骤至少为150mm高,并且至少一排增压电极向上突出,在步骤之前,熔体至少流过至少 位于底部的一排起泡器,并且在台阶之后,玻璃在高度加热状态下在精炼库上流动800mm至2000mm的距离,所述堤的上侧处于最大距离“T” 距玻璃浴表面300毫米。