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    • 77. 发明授权
    • Flat-face valve for pulp rotary drum vacuum washer filter and method
    • 用于纸浆旋转鼓真空吸尘器过滤器的平面阀和方法
    • US09551430B2
    • 2017-01-24
    • US14428042
    • 2013-10-01
    • Andritz Inc.
    • Todd Grace
    • F16K24/04B01D33/74B01D33/48B01D33/06B01D36/00B01D33/09B01D33/00D21C9/06
    • B01D36/001B01D33/0009B01D33/06B01D33/09B01D33/48B01D33/74D21C9/06F16K24/04
    • A rotary drum for thickening pulp from a slurry, the drum including drainage channels delivering filtrate from a pulp mat on an outer surface of the rotary drum to at least one filtrate chamber at an end of the rotary drum, a flat face valve and plenum chamber assembly in the filtrate chamber. The flat face valve juxtaposed against drainage outlets of the drainage channels, wherein the flat face valve does not block the drainage outlets during a majority of the rotation of the rotary drum. At least one opening on the flat face valve extending through the front surface and aligned with the drainage outlets to provide a fluid passage through the flat face valve and to a plenum chamber behind the flat face valve such that air in the filtrate is collected in the upper portion of the plenum chamber and removed from the rotary drum.
    • 一种用于从浆料中增稠纸浆的旋转鼓,所述滚筒包括排出通道,其将滤液从所述旋转鼓的外表面上的纸浆垫输送到所述旋转鼓的端部处的至少一个滤液室,平面阀和增压室 装在滤液室中。 平面阀与排水通道的排水口并置,其中平面阀在旋转滚筒的大部分旋转期间不阻塞排出口。 平面阀上的至少一个开口延伸穿过前表面并与排水口对准,以提供通过平面阀的流体通道和平面阀后面的增压室,使得滤液中的空气被收集在 增压室的上部并从旋转鼓中取出。
    • 80. 发明申请
    • METHOD AND DEVICE FOR OPERATING A SCREEN WHEEL FILTER
    • 用于操作筛网轮过滤器的方法和装置
    • US20160051915A1
    • 2016-02-25
    • US14774180
    • 2014-05-08
    • GNEUSS GMBH
    • Detlef GNEUSSStephan GNEUSSDaniel GNEUSS
    • B01D33/80B01D33/48B01D33/15B29C37/00
    • B01D33/804B01D33/15B01D33/48B29C37/00B29C47/0886B29C47/683B29C47/92B29C2037/96B29C2947/9259B29C2947/92695B29C2947/92961B29C2947/9299
    • The invention relates to a method and a device for operating a screen wheel filter for highly viscous melts having pressures >10 bar and temperatures >90° C. which shall be further developed in such a way that less of the highly viscous melt is wasted and that the operation of the screen wheel filter can be made more economical. For this purpose the screen wheel (3) according to the invention is rotationally driven at least one complete revolution, with respect to one of the screen inserts (12) located in the melt channel (10), before the particular screen insert (12) is replaced and/or backflushed, and wherein the drive speed and drive cycling for the screen wheel (3) are set in dependence on the thermal or oxidative decomposition behavior of the particular melt in such a way that, when the particular screen insert (12) reenters the melt channel (10) of the screen wheel filter (1), the melt remaining in the particular screen insert (12) has experienced thermal decomposition or oxidative decomposition of
    • 本发明涉及一种用于操作具有压力> 10巴和温度> 90℃的高粘度熔体的筛轮过滤器的方法和装置,其将进一步开发,使得较少的高粘度熔体被浪费, 可以使筛轮过滤器的操作更经济。 为此,根据本发明的筛轮(3)在特定筛网插入件(12)之前相对于位于熔体通道(10)中的一个筛网插入件(12)旋转驱动至少一整圈, 被替换和/或反冲洗,并且其中根据特定熔体的热或氧化分解行为来设定筛轮(3)的驱动速度和驱动循环,使得当特定筛网插入件(12) )重新进入筛网过滤器(1)的熔体通道(10),残留在特定筛网插入物(12)中的熔体经历了<3%裂解的分子链的热分解或氧化分解,优选<1%裂解的分子链 。