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    • 84. 发明专利
    • Synthetic quartz glass production device
    • 合成石墨玻璃生产设备
    • JP2009132549A
    • 2009-06-18
    • JP2007309142
    • 2007-11-29
    • Covalent Materials Tokuyama Corpコバレントマテリアル徳山株式会社
    • YAMAKADO MAMORUCHIJIMATSU TAKASHIHAYAKAWA AKIADACHI SADAHIRO
    • C03B8/04C03B20/00
    • C03B19/1446
    • PROBLEM TO BE SOLVED: To provide a synthetic quartz glass production device which performs stable exhaust, then, stabilize the atmosphere in a synthesis furnace (in an ingot synthesis part), also suppresses the sticking of quartz glass powder to an exhaust pipe and further, performs the exhaust of a plurality of synthesis furnaces (ingot synthesis parts) by a single exhaust device.
      SOLUTION: The synthetic quartz glass production device comprises: the ingot synthesis part 3 with a burner and a target disposed therein; the exhaust part 5 provided below the ingot synthesis part 3 and exhausting gas to the outside; a differential pressure sensor 14 provided at the exhaust part 5 and measuring the pressure in the furnace and the pressure at the outside of the furnace; an exhaust pipe 10 connected to an exhaust port formed at the exhaust part; an open air introduction pipe 11 connected to the exhaust pipe; and a turning valve 12 controlling the opening degree of the open air introduction pipe, wherein the opening degree of the turning valve 12 is controlled in such a manner that the differential pressure in the differential pressure sensor 14 is made constant, and the distribution to the exhaust amount from the exhaust part 5 and to the introduction amount of the open air from the open air introduction pipe 11 is made variable without changing the total exhaust amount.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题为了提供一种稳定排气的合成石英玻璃制造装置,在合成炉(锭合成部)中使气氛稳定化的同时,还抑制石英玻璃粉末向排气管的粘附 并且还通过单个排气装置进行多个合成炉(锭合成部)的排气。 合成石英玻璃生产装置包括:铸锭合成部分3,其中放置有燃烧器和靶; 设置在锭合成部3的下方的排气部5向外部排出气体; 设置在排气部5并测量炉内的压力和炉外的压力的差压传感器14; 连接到形成在排气部的排气口的排气管10; 连接到排气管的露天导入管11; 以及控制开放空气引入管的开度的转向阀12,其中转向阀12的开度被控制成使得差压传感器14中的压差恒定,并且分配给 使来自排气部5的排气量和从露天导入管11的开放空气的引入量变化而不改变总排气量。 版权所有(C)2009,JPO&INPIT
    • 87. 发明专利
    • Method and apparatus for producing high purity silica powder and high purity silica powder
    • 生产高纯度二氧化硅粉末和高纯度二氧化硅粉末的方法和装置
    • JP2006199525A
    • 2006-08-03
    • JP2005011723
    • 2005-01-19
    • Shin Etsu Chem Co Ltd信越化学工業株式会社
    • KAMIO TAKESHITAKANO TORUMIYOSHI KAZUMITERAJIMA MASAMI
    • C03B20/00B09B5/00
    • C03B19/1446C01B33/126C03B19/106
    • PROBLEM TO BE SOLVED: To provide a method and an apparatus for producing high purity silica powder capable of easily producing high purity and easily handleable silica powder by producing a porous quartz glass body and, at the same time, disposing of exhaust gas generated, and to provide high purity silica powder.
      SOLUTION: This production method is one for producing the porous quartz glass body by depositing glass particulates produced by vapor phase hydrolysis reaction of quartz-based glass raw materials, and simultaneously producing the high purity silica powder, where the exhaust gas containing silica powder is led to a separator equipped with a ceramic filter, and treating the separated/recovered silica powder by a deaeration apparatus to make its bulk density to 0.1-0.7 g/cm
      3 .
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 解决的问题:提供一种生产高纯度二氧化硅粉末的方法和设备,其能够通过制造多孔石英玻璃体容易地生产高纯度和容易处理的二氧化硅粉末,并且同时处理废气 产生,并提供高纯度二氧化硅粉末。 解决方案:该制造方法是通过沉积由石英基玻璃原料的气相水解反应生成的玻璃微粒并同时制备含有二氧化硅的废气的高纯度二氧化硅粉末来制造多孔石英玻璃体的方法 将粉末导入配备有陶瓷过滤器的分离器,并通过脱气装置处理分离/回收的二氧化硅粉末,使其堆积密度为0.1-0.7g / cm 3。 版权所有(C)2006,JPO&NCIPI