公开(公告)号：US5055123A

公开(公告)日：1991-10-08

申请号：US538388

申请日：1990-06-14

申请人： Thomas Meacle

发明人： Thomas Meacle

IPC分类号： C03B5/23 ,  C03B7/06

CPC分类号： C03B7/06

摘要： The invention provides a method and apparatus for equalizing the temperature of molten glass (2) over the cross-section of a stream thereof advancing through a refractory forehearth from a glass furnace to a glass working machine. To this end, cooling air is blown downwardly to strike the mid-line of the stream, and is then evacuated upwardly from locations on either side of the mid-line, in such manner that substantial side regions of the stream surface are preserved from cooling contact with the cooling air. Apparatus for this purpose comprises refractory blocks (4a, 4b) which can be assembled to form a forehearth superstructure or roof, the blocks having hollow formations which unite on assembly thereof to form feed (11) and return (12, 13) channels for the cooling air, as well as inlet (8) and exhaust (9, 10) ducts for directing it at the molten glass and recovering it thereafter.

公开(公告)号：US4708728A

公开(公告)日：1987-11-24

申请号：US908351

申请日：1986-09-16

申请人： Marc Desprez ,  Michel Roux

发明人： Marc Desprez ,  Michel Roux

IPC分类号： C03B5/235 ,  C03B7/06 ,  F23D14/02 ,  F23D14/12 ,  F23D14/32 ,  C03B5/04

CPC分类号： C03B7/065 ,  Y02P40/55 ,  Y02P40/57

摘要： Device for improving the heating of a channel (2) for distribution of glass (1), said device including a cylindrical duct (6) connected at its upstream end to means (7) for feeding a premixture of air and fuel gas and whose downstream end (8) opens inside a cylindrical bore (9) in a refractory block (10) inserted in a wall (11) of the channel, said cylindrical bore (9) extending by means of a coaxial cylindrical duct (12), of smaller diameter than that of said bore, the cylindrical channel (6) being surrounded by a sealing ring (13) which covers the face of the cylindrical bore (9) in which said channel (6) is inserted. According to the invention, the device comprises a capillary tube (20) coaxially disposed with respect to said duct (6) and whose diameter is smaller than the diameter of said duct (6), said capillary tube (20) being connected at its upstream end to oxygen feeding means (21) opening at the downstream end (8) of said duct (6) between the end (22) of the coaxial cylindrical duct located toward said channel and the downstream end (8) of said duct (6).

摘要翻译： 用于改善用于分配玻璃（1）的通道（2）的加热的装置，所述装置包括在其上游端连接的圆柱形导管（6），用于供给空气和燃料气体的预混合物的装置（7） 端部（8）在插入通道的壁（11）的耐火块（10）中的圆柱形孔（9）内开口，所述圆柱形孔（9）借助于同轴圆柱形管道（12）延伸，更小 圆柱形通道（6）由覆盖所述通道（6）插入的圆柱形孔（9）的表面的密封环（13）包围。 根据本发明，该装置包括相对于所述管道（6）同轴设置并且其直径小于所述管道（6）的直径的毛细管（20），所述毛细管（20）在其上游 在位于所述通道的同轴圆柱形管道的端部（22）和所述管道（6）的下游端（8）之间的所述管道（6）的下游端（8）处开口的氧气供给装置（21） 。

公开(公告)号：US4655812A

公开(公告)日：1987-04-07

申请号：US776630

申请日：1985-09-16

申请人： John F. Blumenfeld

发明人： John F. Blumenfeld

IPC分类号： C03B7/06 ,  C03B7/07 ,  C03B5/235

CPC分类号： C03B7/06 ,  C03B7/07

摘要： A forehearth for a glass furnace includes a roof formed of a plurality of roof blocks designed to provide below the roof blocks a central longitudinal channel and side channels on each side of the central channel. An electric heating element is positioned in a bore in the roof blocks substantially directly above the side channels to permit radiation of heat to the glass surface above the side channels. The temperature of the molten glass utilizing the construction can be effectively uniformly controlled across its cross-section.

摘要翻译： 用于玻璃炉的前炉包括由多个屋顶块形成的屋顶，其被设计成在屋顶下方提供中央纵向通道和在中央通道的每一侧上的侧通道。 电加热元件位于大致直接在侧通道上方的屋顶块的孔中，以允许将热量辐射到侧通道上方的玻璃表面。 利用该结构的熔融玻璃的温度可以跨过其横截面有效地均匀地控制。

公开(公告)号：US4604123A

公开(公告)日：1986-08-05

申请号：US752157

申请日：1985-07-03

申请人： Marc Desprez ,  Serge Laurenceau

发明人： Marc Desprez ,  Serge Laurenceau

IPC分类号： C03B7/06 ,  C03B5/225

CPC分类号： C03B7/065 ,  Y02P40/55

摘要： A process and installation for heating a channel in which flows a mass of molten glass toward one or more forming machines. The channel includes a vault which carries at least one group of oxyfuel burners connected to a source of oxygen and to a source of fuel gas, these burners being so oriented as to produce curtains of flames directed towards the longitudinal marginal zones of the surface of the stream of molten glass.

摘要翻译： 一种用于加热通道的方法和装置，其中熔融玻璃体向一个或多个成形机流动。 该通道包括一个拱顶，其具有连接到氧气源和燃料气体源的至少一组氧燃料燃烧器，这些燃烧器被定向成产生指向所述燃烧器的表面的纵向边缘区域的火焰窗口 熔融玻璃流。

公开(公告)号：US4511385A

公开(公告)日：1985-04-16

申请号：US542319

申请日：1983-10-17

申请人： Marvin L. Barkhau ,  Joseph J. Kujawa

发明人： Marvin L. Barkhau ,  Joseph J. Kujawa

IPC分类号： C03B7/06 ,  C03B5/04

CPC分类号： C03B7/06

摘要： A centerline cooled forehearth for conditioning molten glass, wherein the sides of the flow channel of the forehearth are provided with external sheets of insulation. The channel is covered by a roof having vertical vents therethrough along the centerline with the usual burner blocks and burners spaced along the sides of the upper edge of the channel. Flue blocks are positioned immediately above the burner blocks, and their lower surfaces extend toward the centerline of the channel a greater extent than the burners, thereby serving as reflectors for the heat from the burners along the side walls of the channel.

摘要翻译： 用于调理熔融玻璃的中心线冷却前炉，其中前炉的流动通道的侧面设置有外部绝缘片。 该通道被具有沿中心线的垂直通风口的屋顶覆盖，通常的燃烧器块和燃烧器沿着通道的上边缘的侧面间隔开。 烟道块位于燃烧器块的正上方，并且其下表面比燃烧器更大程度地延伸到通道的中心线，从而用作来自燃烧器沿通道侧壁的热量的反射器。

公开(公告)号：US4029488A

公开(公告)日：1977-06-14

申请号：US711068

申请日：1976-08-02

申请人： Chester K. Rhett

发明人： Chester K. Rhett

IPC分类号： C03B7/06 ,  C03B5/02

CPC分类号： C03B7/06

摘要： The temperature of molten glass conveyed by means of a forehearth between a melting furnace and a discharge orifice in a bowl remote from the furnace is controlled and adjusted thermally by a method that includes an abrupt bottom-zone temperature reduction step in the immediate proximity of the entry of the glass from the furnace to the forehearth cooling zone to a temperature approximately equal to but above a predetermined gob temperature; next the step of blending and homogenizing the cooling glass as it enters the conditioning zone in its downstream movement; and while avoiding above-surface heating during conditioning, subjecting the glass stream only to mild Joule-effect, below-surface heating applied in a controlled manner to accomplish temperature normalization and homogeneity throughout the stream whereupon the glass is delivered to the discharge orifice at a specified temperature.

摘要翻译： 通过在远离炉子的碗中的熔炉和排出孔之间的前炉输送的熔融玻璃的温度通过包括突然的底部区域温度降低步骤的方法进行热控制和调节，所述方法包括： 将玻璃从炉子进入前炉冷却区至大约等于但高于预定的料滴温度的温度; 接下来是冷却玻璃在其下游运动中进入调节区时混合和均化的步骤; 并且在调节期间避免上表面加热的同时，对玻璃流进行温和的焦耳效应，以受控的方式施加低于表面的加热，以实现整个流的温度归一化和均匀性，从而将玻璃流以一 指定温度。

公开(公告)号：US3999972A

公开(公告)日：1976-12-28

申请号：US607707

申请日：1975-08-25

申请人： Jean Albert Brax

发明人： Jean Albert Brax

IPC分类号： C03B7/06 ,  C03B5/16

CPC分类号： C03B7/06

摘要： A forehearth for a glass furnace includes a roof having a plurality of longitudinal ridges depending therefrom. These define a central longitudinal channel lengthwise of which a current of cooling air flows between inlet and outlet ports to cool the central, hottest portion of the current of glass in the forehearth, and side channels which, optionally with burners or heaters, serve to reheat the portions of the glass current at the longitudinal edges of that current.

摘要翻译： 用于玻璃熔炉的前炉包括具有从其悬垂的多个纵向脊的屋顶。 这些定义了长度方向的中心纵向通道，冷却空气的电流在入口和出口之间流动，以冷却前炉中玻璃的中心，最热的部分，以及任选地具有燃烧器或加热器的侧通道用于再热 在该电流的纵向边缘处的玻璃电流的部分。

公开(公告)号：US3506427A

公开(公告)日：1970-04-14

申请号：US3506427D

申请日：1967-03-31

申请人： OWENS CORNING FIBERGLASS CORP

发明人： GRIEM PAUL D JR

IPC分类号： G05D23/00 ,  C03B5/24 ,  C03B7/06 ,  C03B7/07 ,  G05D23/22 ,  C03B25/02 ,  G12B1/00

CPC分类号： C03B7/06 ,  C03B5/24 ,  G05D23/1904 ,  G05D23/1934 ,  G05D23/22 ,  Y10S65/13

公开(公告)号：US2735229A

公开(公告)日：1956-02-21

申请号：US2735229D

IPC分类号： C03B7/06 ,  F23M5/00

CPC分类号： C03B7/06 ,  F23M5/00 ,  F23M2700/005 ,  Y02P40/57

公开(公告)号：US2649903A

公开(公告)日：1953-08-25

申请号：US9372749

申请日：1949-05-17

申请人： EMHART MFG CO

发明人： RUSSELL ALAN W

IPC分类号： C03B7/06

CPC分类号： C03B7/06