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11. 发明公开

EP2303787A1 VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG EINES QUARZGLASZYLINDERS 有权
标题翻译：方法和设备用于生产石英玻璃圆柱体
公开(公告)号：EP2303787A1
公开(公告)日：2011-04-06
申请号：EP09769315.4
申请日：2009-06-25
申请人： Heraeus Quarzglas GmbH & Co. KG
发明人： LEBER, Helmut , BERG, Rainer , WHIPPEY, Nigel
IPC分类号： C03B17/04 , C03B5/182
CPC分类号： C03B17/04 , C03B5/0336 , C03B5/182
摘要： In a known method for drawing a tubular quartz glass strand, SiO
2 -containing starting material is fed to a melting crucible, softened therein into a viscous quartz glass mass (27), and said mass is pulled vertically downward as a cylindrical quartz glass strand (5; 33) through a die (4; 34) provided in the bottom region of the melting crucible (1), said die having a gap-shaped outlet (25; 36), which is defined by a bottom opening and a die inside part, and thereafter the quartz glass cylinder is cut to length. In order to provide a method starting from this which facilitates the production of homogeneous quartz glass cylinders, even if the lateral dimensions thereof are in the range of the inside diameters of conventional melting crucibles (1), according to the invention the viscous quartz glass mass is drawn over a flow constriction (12; 32) provided in an upper region of the die (4; 34) and leading downward into the outlet (25; 36) via a flow channel, said region facing the crucible interior, wherein the outlet has an opening width that is larger than the width of the flow constriction (12; 32), and wherein a first minimum circumscribed circle around the flow constriction (12; 32) has a diameter that is a maximum of 30% of the diameter of a second minimum circumscribed circle around the quartz glass strand (5; 33) to be drawn. The invention further relates to a corresponding apparatus.

12. 发明公开

EP1993959A1 METHOD AND DEVICE FOR DRAWING A TUBULAR STRAND OF QUARTZ GLASS 审中-公开
标题翻译：方法和装置拉管子火车从石英玻璃
公开(公告)号：EP1993959A1
公开(公告)日：2008-11-26
申请号：EP07726677.3
申请日：2007-03-07
申请人： Heraeus Quarzglas GmbH & Co. KG
发明人： HORN, Roland , LEBER, Helmut , TROMMER, Martin , WHIPPEY, Nigel , BERG, Rainer , BECKER, Joerg , GERHARDT, Rolf
IPC分类号： C03B17/04
CPC分类号： C03B17/04 , C03B5/0336
摘要： In a known method for drawing a tubular quartz glass strand, a crucible is fed with SiO2-containing start material, the start material is softened in the crucible and, as a softened quartz glass mass, is drawn vertically downwards as a tubular quartz glass strand along a drawing axis through an annular gap between an outer member and an inner member, which is arranged in a through hole of the outer member, of a drawing nozzle provided in the bottom area of the crucible. To improve the known method with respect to less inhomogeneity in the drawn-off tubular strand and thereby to permit the manufacture of homogeneous, defect-free hollow cylinders of quartz glass by drawing from the melt, it is suggested according to the invention that the inner member of the drawing nozzle, viewed in the direction of the drawing axis, is held suspended and radially movable inside the through hole of the outer member, and that the annular gap of the drawing nozzle has a longitudinal section 'L' in which its cross-sectional nozzle area is reduced in size from the top to the bottom.

13. 发明公开

EP0568280A1 Treatment of radioactive wastes 失效
标题翻译： Behandlung放音机Abfälle。
公开(公告)号：EP0568280A1
公开(公告)日：1993-11-03
申请号：EP93303178.3
申请日：1993-04-23
申请人： WESTINGHOUSE ELECTRIC CORPORATION
发明人： Sachse, John David , Drosjack, Walter Paul , Eisenstatt, Larry Ricyard , Weigle, David Harry , Keegan, C. Patrick
IPC分类号： G21F9/16 , C03B5/027 , C03B5/033
CPC分类号： C03B5/0275 , C03B5/005 , C03B5/0336 , C03B5/26 , G21F9/305 , Y02P40/52
摘要： Method and apparatus for the incineration and vitrification of radioactive waste materials. Waste materials are fed into a melter (10) containing molten glass (26) wherein the waste is incinerated and vitrified into the glass matrix. Gases produced are combusted in an extended plenum area (28) preferably designed to provide a residence time of at least 3 seconds. A portion of the sulfur compounds in the combustion gases are incorporated into a solid matrix of gypsum (50) by contacting the sulfur compounds with an aqueous solution (47) and calcium hydroxide (48).
摘要翻译：放射性废物焚烧和玻璃化的方法和装置。废料被送入包含熔融玻璃（26）的熔化器（10）中，其中废物被焚烧并玻璃化成玻璃基质。产生的气体在延伸的通风区域（28）中燃烧，优选地设计为提供至少3秒的停留时间。通过使硫化合物与水溶液（47）和氢氧化钙（48）接触，燃烧气体中的一部分硫化合物被并入石膏（50）的固体基质中。

14. 发明授权

EP0394640B1 Verfahren zur Herstellung von Rohren aus Quarzglas oder hochkieselsäurehaltigen Gläsern mit geringen Durchmesserschwankungen 失效
标题翻译：用于制造具有低直径变化的高含量硅酸的硅胶管或管的方法
公开(公告)号：EP0394640B1
公开(公告)日：1993-05-19
申请号：EP90103631.9
申请日：1990-02-24
申请人： Heraeus Quarzglas GmbH
发明人： Leber, Helmut, Dr. , Whippey, Nigel R.
IPC分类号： C03B17/04 , C03B23/047 , C03B5/12 , C03B5/02
CPC分类号： C03B5/0336 , C03B17/04 , C03B23/047 , C03B33/06

15. 发明公开

EP0344360A2 Verfahren zur kontinuierlichen Herstellung eines Rohres oder Stabes aus Quarzglas 失效转让
标题翻译：过程用于连续生产的石英玻璃的管或杆的。
公开(公告)号：EP0344360A2
公开(公告)日：1989-12-06
申请号：EP88119192.8
申请日：1988-11-18
申请人： Heraeus Quarzglas GmbH
发明人： Leber, Helmut, Dr. , Whippey, Nigel R.
IPC分类号： C03B17/04 , C03B5/12
CPC分类号： C03B5/0336 , C03B3/00 , C03B5/02 , C03B5/021 , C03B17/04 , C03B20/00 , Y10S65/04 , Y10S65/09
摘要： Die Erfindung betrifft ein Verfahren zur kontinuierlichen Herstellung eines Rohres oder Stabes aus Quarzglas. Teilchenförmiges Siliziumdioxid wird in einem Tiegel auf Erweichungstemperatur erhitzt und aus einer bodenausflußöffnung, in der ein Formwerkzeug angeordnet ist, kontinuierlich nach unten abgezogen. In dem Ringraum zwischen dem Formwerkzeug und der Bodenausflußöffnung wird das erweichte Siliziumdioxid einem elektrischen Feld unterworfen. In nach außen abgeschlossenen Tiegel wird oberhalb des Siliziumdioxids und im Raum, der sich an dem Formgebungsbereich unterhalb des Tiegels anschließt, eine wasserstoffhaltige Atmosphäre aufrechterhalten mit einem Wasserstoff-Gehalt von wenigstens 80 %.
摘要翻译：在这个过程中，二氧化硅微粒被加热到在一个坩埚中的软化点和来自在其中模具被布置在基座出口孔连续向下抽出。在模具和基座出口孔之间的环形的设计空间，软化的二氧化硅在电场进行。在密封于外部坩埚，具有至少80％的氢含量含氢气氛中保持在高于二氧化硅和在该空间中继坩埚下面的模制区。

16. 发明公开

EP0325055A2 Glass melting furnace 失效
标题翻译： Glasschmelzofen。
公开(公告)号：EP0325055A2
公开(公告)日：1989-07-26
申请号：EP88312192.3
申请日：1988-12-22
申请人： NIPPON SHEET GLASS CO., LTD.
发明人： Manabe, Seiichiro , Nagashima, Yukihito
IPC分类号： C03B5/033
CPC分类号： C03B5/033 , C03B5/0336 , Y10S65/04
摘要： A vertical glass melting furnace (10) is provided with a material entrance (1) at the uppermost portion and a molten glass exit (2) is provided at the lowermost portion. A resistance heating element 6 is provided over the substantially entire part of the horizontal section of the furnace at at least one level which is immersed in the molten glass.
摘要翻译：立式玻璃熔炉（10）在最上部设有材料入口（1），在最下部设有熔融玻璃出口（2）。电阻加热元件6设置在炉的水平部分的基本上整个部分上，浸入熔融玻璃中的至少一个水平面。

17. 发明授权

EP2834200B1 VERFAHREN ZUR HERSTELLUNG EINES FORMKÖRPERS AUS ELEKTROGESCHMOLZENEM SYNTHETISCHEM QUARZGLAS 有权
标题翻译：方法制备成型身体合成石英玻璃电熔
公开(公告)号：EP2834200B1
公开(公告)日：2017-01-18
申请号：EP13712545.6
申请日：2013-03-26
申请人： Heraeus Quarzglas GmbH & Co. KG
发明人： LEHMANN, Walter , KAYSER, Thomas , ARNDT, Martin , HOFMANN, Achim
IPC分类号： C03B20/00 , C03B5/033 , C03B19/10
CPC分类号： C03B20/00 , C03B5/033 , C03B5/0336 , C03B19/108 , C03B19/1095 , Y02P40/57

18. 发明公开

EP2834200A1 VERFAHREN ZUR HERSTELLUNG EINES FORMKÖRPERS AUS ELEKTROGESCHMOLZENEM SYNTHETISCHEM QUARZGLAS 有权
标题翻译： VERFAHREN ZUR HERSTELLUNG EINESFORMKÖRPERSAUS ELEKTROGESCHMOLZENEM SYNTHETISCHEM QUARZGLAS
公开(公告)号：EP2834200A1
公开(公告)日：2015-02-11
申请号：EP13712545.6
申请日：2013-03-26
申请人： Heraeus Quarzglas GmbH & Co. KG
发明人： LEHMANN, Walter , KAYSER, Thomas , ARNDT, Martin , HOFMANN, Achim
IPC分类号： C03B20/00 , C03B5/033 , C03B19/10
CPC分类号： C03B20/00 , C03B5/033 , C03B5/0336 , C03B19/108 , C03B19/1095 , Y02P40/57
摘要： In a known method for producing a mold body from synthetic quartz glass, quartz glass granules (15) are heated in an electrically heated melt container (31) to form a softened quartz glass mass (57), and the softened quartz glass mass (57) is formed to the mold body. In order to achieve an advantageous melting behavior also in continuous melting processes, it is proposed according to the invention that synthetically produced quartz glass granules (15) of granular particles are used in which helium is enclosed, wherein said quartz glass granules (15) are produced by granulating pyrogenically produced silicic acid with the formation of a SiO
2 granulate (9) and subsequent vitrification of the SiO
2 granulate in a rotary kiln (1), which has a rotary tube (6) which is at least partially made of a ceramic material, and under a treatment gas that contains at least 30% by volume of helium.
摘要翻译：在从合成石英玻璃制造模具体的已知方法中，将石英玻璃颗粒（15）在电加热熔融容器（31）中加热以形成软化石英玻璃块（57），并将软化的石英玻璃块（57 ）形成在模具体上。为了在连续熔融过程中也实现有利的熔融行为，根据本发明提出，使用合成生产的颗粒颗粒的石英玻璃颗粒（15），其中包封氦气，其中所述石英玻璃颗粒（15）为通过在形成SiO 2颗粒（9）中造粒热解产生的硅酸并随后在回转窑（1）中玻璃化SiO 2颗粒而制备，旋转窑（1）具有至少部分由陶瓷材料制成的旋转管（6）并且在含有至少30体积％的氦的处理气体下。

19. 发明授权

EP2303787B1 VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG EINES QUARZGLASZYLINDERS 有权
标题翻译：方法和设备用于生产石英玻璃圆柱体
公开(公告)号：EP2303787B1
公开(公告)日：2012-02-01
申请号：EP09769315.4
申请日：2009-06-25
申请人： Heraeus Quarzglas GmbH & Co. KG
发明人： LEBER, Helmut , BERG, Rainer , WHIPPEY, Nigel
IPC分类号： C03B17/04 , C03B5/182
CPC分类号： C03B17/04 , C03B5/0336 , C03B5/182
摘要： In a known method for drawing a tubular quartz glass strand, SiO
2 -containing starting material is fed to a melting crucible, softened therein into a viscous quartz glass mass (27), and said mass is pulled vertically downward as a cylindrical quartz glass strand (5; 33) through a die (4; 34) provided in the bottom region of the melting crucible (1), said die having a gap-shaped outlet (25; 36), which is defined by a bottom opening and a die inside part, and thereafter the quartz glass cylinder is cut to length. In order to provide a method starting from this which facilitates the production of homogeneous quartz glass cylinders, even if the lateral dimensions thereof are in the range of the inside diameters of conventional melting crucibles (1), according to the invention the viscous quartz glass mass is drawn over a flow constriction (12; 32) provided in an upper region of the die (4; 34) and leading downward into the outlet (25; 36) via a flow channel, said region facing the crucible interior, wherein the outlet has an opening width that is larger than the width of the flow constriction (12; 32), and wherein a first minimum circumscribed circle around the flow constriction (12; 32) has a diameter that is a maximum of 30% of the diameter of a second minimum circumscribed circle around the quartz glass strand (5; 33) to be drawn. The invention further relates to a corresponding apparatus.

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