Directly cooled, side fired forehearth

    公开(公告)号:US5718741A

    公开(公告)日:1998-02-17

    申请号:US444498

    申请日:1995-05-19

    CPC分类号: C03B7/06

    摘要: A forehearth (20) for cooling glass from a melting furnace as it flows to a feeder bowl (28) from which it is discharged to a forming machine. The forehearth is in the form of an elongate, horizontally extending insulated trough (26) with a roof formed by a longitudinally extending series of roof block elements (30), each of which is of one-piece construction and extends completely across the width of the insulated trough. The downwardly facing surface of each roof block element is contoured to incorporate concave portions (30a, 30b) near the edges of the forehearth, a concave portion (30c) above the center of the forehearth and convex portions (30d, 30e) separating the center concave portion from the side concave portions to substantially impede heat transfer between the side concave portions and the center concave portion. Burners (32) are positioned along the opposed sides of the forehearth to fire transversely into the spaces underlying the side concave portions of the roof blocks, and cooling air passages (40) extend through the roof blocks to discharge cooling air transversely of the forehearth into the space underlying the center concave portion in direct contact with the glass in the forehearth. A plurality of exhaust openings (34, 42) for products of combustion from the burners and cooling air, respectively are positioned along the length of the forehearth to provide for longitudinal flow of products of combustion and cooling air at rates which are variable along the length of the forehearth.

    Process and apparatus for coloring glass
    102.
    发明授权
    Process and apparatus for coloring glass 失效
    玻璃着色的方法和设备

    公开(公告)号:US5588978A

    公开(公告)日:1996-12-31

    申请号:US246064

    申请日:1994-05-19

    摘要: A method and apparatus for the production of colored glass includes the steps of diverting a stream of clear molten glass from at least one glass melting furnace through one or more transport channels to a color treatment chamber. Recycled cullet and color additive are added to a charging end of the treatment chamber. The treatment chamber is heated to melt the cullet and further heat the remaining feedstock to form a molten bath of colored glass which is thermally and chemically homogenized in the treatment chamber. Refractory rotary paddle wheels positioned in the transport channels regulate the flow rate and level of the molten glass and provide for selective shut off of individual glass streams. A glass level sensor is located in an outlet channel of the treatment chamber and is electrically coupled to a programmable controller to selectively regulate the rotational speed of the paddle wheels responsive to glass level fluctuations to maintain a controlled gob weight of colored glass supplied to the glass forming machine.

    摘要翻译: 用于生产有色玻璃的方法和设备包括以下步骤:将来自至少一个玻璃熔化炉的透明熔融玻璃流通过一个或多个输送通道转移到颜色处理室。 将再循环的碎玻璃和颜色添加剂加入到处理室的充电端。 处理室被加热以熔化碎玻璃并进一步加热剩余的原料以形成在处理室中热和化学均化的着色玻璃的熔池。 定位在运输通道中的耐火旋转桨轮调节熔融玻璃的流速和水平,并提供选择性关闭单个玻璃流。 玻璃液位传感器位于处理室的出口通道中,并且电耦合到可编程控制器,以响应于玻璃水平波动选择性地调节桨轮的旋转速度,以保持供应到玻璃的有色玻璃的受控料滴重量 成型机。

    Method for conditioning and homogenizing a glass stream
    103.
    发明授权
    Method for conditioning and homogenizing a glass stream 失效
    用于调节和均化玻璃流的方法

    公开(公告)号:US5573569A

    公开(公告)日:1996-11-12

    申请号:US524165

    申请日:1995-08-31

    CPC分类号: C03B7/06 Y02P40/57

    摘要: A continuously flowing glass stream is conditioned and homogenized along a conditioning stretch, which extends from an entry side to at least one extraction point, and at the beginning of which there is a cooling zone, to which a homogenizing zone for the glass temperature is connected. This method is preferentially used for the manufacture of molded glass articles, such as containers and pressed articles. In order to achieve the necessary conditioning and homogenization, even at high throughputs, the glass stream in the cooling zone has a cross section with a depth/width ratio D/W of a maximum 0.6 or 0.5, or 0.4, or 0.3, or 0.2, whereby the maximum depth Dmax amounts toa) 300 or 250 or 200 mm when the cooling zone is situated in a working end or in a distribution channelb) 150 or 120 or 100 mm when the cooling zone is situated in a feeder or in a forehearthand, at least 30, or 40 or 50% of that amount of energy which corresponds to the necessary temperature reduction is removed from the glass bath per meter of flow path at the beginning of the cooling zone.

    摘要翻译: 将连续流动的玻璃流沿着从进入侧延伸至至少一个提取点的调理拉伸条件进行调理和均化,并且其开始处具有冷却区,玻璃温度的均质化区域连接到该冷却区 。 该方法优选用于制造模制玻璃制品,例如容器和压制制品。 为了实现必要的调节和均质化,即使在高通量下,冷却区中的玻璃流具有深度/宽度比D / W最大为0.6或0.5,或0.4,或0.3或0.2的横截面 ,其中当冷却区位于工作端或分布通道b)中时,最大深度Dmax等于a)300或250或200mm,当冷却区位于进料器或在 在冷却区开始处,从每米流路的玻璃浴中除去对应于必要的温度降低的能量的至少30或40或50%。

    Method and apparatus for conveying molten glass
    104.
    发明授权
    Method and apparatus for conveying molten glass 失效
    用于输送玻璃的方法和装置

    公开(公告)号:US5198010A

    公开(公告)日:1993-03-30

    申请号:US786079

    申请日:1991-10-31

    申请人: Clive Ward

    发明人: Clive Ward

    IPC分类号: C03B7/06

    CPC分类号: C03B7/06

    摘要: The present invention provides a molten glass conveying apparatus comprising a channel (4) along which molten glass may flow, a roof structure (6) over the channel (4) and extending between the two sides thereof and at least one nozzle (28) in the roof structure (6) through which a heating fluid may be passed, wherein in use the direction of the output of the heating fluid from the nozzle (28) is substantially along the channel (4) whereby at least one side portion of the molten glass is heated.

    Method and device for the thermal regulation of a moving fluid mass
    105.
    发明授权
    Method and device for the thermal regulation of a moving fluid mass 失效
    移动流体质量的热调节方法和装置

    公开(公告)号:US4738706A

    公开(公告)日:1988-04-19

    申请号:US896180

    申请日:1986-08-13

    IPC分类号: C03B7/06 C03B5/23

    CPC分类号: C03B7/06

    摘要: The device comprises a three-dimensional grid of thermocouples which are immersed in a fluid, which is moving in a covered channel and has a temperature above that of its environment. Apertures in the sheathing of the channel can be progressively closed by shutters so as to control the cooling of the fluid through an outgoing radiation through the apertures. Burners with a variable intensity are placed within the channel and allow to heat up the fluid in the vicinity of each burner. The position of each shutter and the fuel flow to each burner are commanded severally, based on the values emitted by the ensemable of the thermocouples in order to obtain a homogeneous repartition of the temperature of the fluid, transversally with respect to the channel.

    摘要翻译: 该装置包括浸入流体中的热电偶的三维网格,该流体在覆盖的通道中移动并具有高于其环境温度的温度。 通道的护套中的孔可以通过百叶窗逐渐闭合,以便通过穿过孔的出射辐射来控制流体的冷却。 具有可变强度的燃烧器放置在通道内,并允许加热每个燃烧器附近的流体。 基于由热电偶可发射的值,分别命令每个快门的位置和每个燃烧器的燃料流量,以便相对于通道横向地获得流体的温度的均匀重新分配。

    Forehearth for conditioning glass
    107.
    发明授权
    Forehearth for conditioning glass 失效
    前炉用于调理玻璃

    公开(公告)号:US4494974A

    公开(公告)日:1985-01-22

    申请号:US510449

    申请日:1983-06-16

    IPC分类号: C03B7/02 C03B7/06 C03B5/23

    CPC分类号: C03B7/06

    摘要: Forehearths for use in glass production comprise a refractory trough (52) for molten glass with an insulating roof thereover, means for heating glass in the trough and means for blowing cooling air across the inside of the roof surface; the forehearth being constructed of at least two sections (A, B and C) which have different insulating characteristics from each other. Preferably the forehearth roof is made up of prefabricated block members of refractory material lying side by side and each of which member spans across the trough. Different insulation is provided over the prefabricated block members to provide different insulating characteristics within sections of the forehearth. The invention also provides prefabricated members for use in the construction of the forehearth according to the present invention.

    摘要翻译: PCT No.PCT / GB82 / 00295 Sec。 371日期:1983年6月16日 102(e)日期1983年6月16日PCT提交1982年10月19日PCT公布。 第WO83 / 01440号公报 用于玻璃生产的前炉包括用于熔融玻璃的耐火槽(52),其上具有绝热屋顶,用于在槽中加热玻璃的装置和用于吹送冷却空气穿过屋顶表面内部的装置; 前炉由至少两个彼此具有不同绝缘特性的部分(A,B和C)构成。 优选地,前炉顶部由并排的耐火材料的预制块构件构成,并且每个构件跨越槽。 在预制块构件上提供不同的绝缘,以在前炉的部分内提供不同的绝缘特性。 本发明还提供了用于根据本发明的前炉的构造中的预制构件。

    Molten mass temperature conditioner
    108.
    发明授权
    Molten mass temperature conditioner 失效
    熔融质量温度调节剂

    公开(公告)号:US4424071A

    公开(公告)日:1984-01-03

    申请号:US424426

    申请日:1982-09-27

    摘要: A container between the output of a melting furnace wherein the molten mass is also refined, such as for glass, and the ducts to a plurality of forming machines comprising a larger first zone and a plurality of smaller second zones corresponding to each forming machine, in which container the molten mass is controlled in temperature above and below its liquid level as it flows through the first and second zone toward a forming machine so that the cross-sectional area of the molten mass at the outlet duct from each second zone has substantially a uniform temperature. Each zone is provided with temperature control means for both heating and cooling, such as burners and/or electrodes above and below the surface of the molten mass in the conditioner, and fluid jets and/or hollow ducts or panels engageable with the outside walls of the conditioner, so as to establish the desired uniform temperatures throughout the depth and width or cross-section of the molten mass flowing from each outlet duct of the conditioner and to minimize as much as possible convection currents in the conditioner.

    摘要翻译: 在熔融炉的输出之间的容器,其中熔融物质也被精炼,例如用于玻璃,并且管道到多个成形机器,其包括对应于每个成形机器的较大的第一区域和多个较小的第二区域, 当所述熔融物质在其液面高于和低于其液面的温度下被控制时,所述容器在成形机上流过所述第一和第二区域,使得来自每个第二区域的出口管道处的熔融物质的横截面面积基本上为 均匀的温度。 每个区域设置有用于加热和冷却的温度控制装置,例如在调节器中的熔融物质的表面上方和下方的燃烧器和/或电极,以及可与外部壁接合的流体射流和/或中空管道或面板 调节器,以便在从调节器的每个出口管道流出的熔融质量的整个深度和宽度或横截面上建立期望的均匀温度,并且尽可能减少调节器中尽可能多的对流电流。

    Method and apparatus for cooling glass furnace forehearth
    109.
    发明授权
    Method and apparatus for cooling glass furnace forehearth 失效
    玻璃炉前炉冷却方法及装置

    公开(公告)号:US4415349A

    公开(公告)日:1983-11-15

    申请号:US368605

    申请日:1982-04-15

    IPC分类号: C03B7/06 C03B5/23

    CPC分类号: C03B7/06

    摘要: An apparatus and method is disclosed for cooling a molten stream of glass flowing in a firebrick hearth from an entrance end to an exit end of a glass furnace forehearth, the method comprising the steps of: cooling the bottom of the hearth which cools the molten glass by forcing air through ducts in the hearth bottom insulation; cooling each side of the hearth which cools the molten glass by forcing air through ducts along the side of the hearth.

    摘要翻译: 公开了一种用于将在耐火砖炉床中流动的玻璃熔体流从玻璃炉前炉的入口端到出口端冷却的装置和方法,所述方法包括以下步骤:冷却将熔融玻璃冷却的炉床底部 通过迫使空气通过炉底底部的管道绝缘; 通过迫使空气沿着炉床侧面的管道冷却来冷却熔融玻璃的炉床的每一侧。

    Method and apparatus for controlling temperatures within a stream of
molten material
    110.
    发明授权
    Method and apparatus for controlling temperatures within a stream of molten material 失效
    用于控制熔融材料流内的温度的方法和装置

    公开(公告)号:US4375369A

    公开(公告)日:1983-03-01

    申请号:US264926

    申请日:1981-05-18

    IPC分类号: C03B7/06 C03B5/24

    CPC分类号: C03B7/06 Y10S65/13

    摘要: A forehearth through which molten glass flows is divided into a plurality of zones. Means are provided in each zone for measuring the temperature of the molten glass and the atmospheric temperature. Means are provided for accumulating and storing data. When the temperature of the molten glass in a selected zone is not within an acceptable range a control signal is generated. The control signal is in response to the current molten glass and atmospheric temperatures in the zone, the current molten glass temperature in the immediately preceding zone and the accumulated and stored data comprising the history of the molten glass and atmospheric temperatures for the selected zone.

    摘要翻译: 熔融玻璃流过的前炉被分成多个区域。 在每个区域中提供用于测量熔融玻璃的温度和大气温度的装置。 提供用于累积和存储数据的装置。 当所选区域中的熔融玻璃的温度不在可接受的范围内时,产生控制信号。 控制信号是响应于当前的熔融玻璃和区域中的大气温度,紧邻在前区域中的当前熔融玻璃温度以及包括熔融玻璃的历史和所选择的区域的大气温度的累积和存储的数据。