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1. 发明授权

US09551430B2 Flat-face valve for pulp rotary drum vacuum washer filter and method 有权
标题翻译：用于纸浆旋转鼓真空吸尘器过滤器的平面阀和方法
公开(公告)号：US09551430B2
公开(公告)日：2017-01-24
申请号：US14428042
申请日：2013-10-01
申请人： Andritz Inc.
发明人： Todd Grace
IPC分类号： F16K24/04 , B01D33/74 , B01D33/48 , B01D33/06 , B01D36/00 , B01D33/09 , B01D33/00 , D21C9/06
CPC分类号： B01D36/001 , B01D33/0009 , B01D33/06 , B01D33/09 , B01D33/48 , B01D33/74 , D21C9/06 , F16K24/04
摘要： 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.
摘要翻译：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。

2. 发明授权

US11633681B2 Replaceable filter plate assembly for a rotary drum filter 有权
公开(公告)号：US11633681B2
公开(公告)日：2023-04-25
申请号：US16775744
申请日：2020-01-29
申请人： Andritz Inc.
发明人： Todd Grace , Kent Stubblefield
IPC分类号： B01D35/02
摘要： A removable filter plate for a rotary drum filter that reduces instances of welding to secure the filter plate to the drum and obviates the need for cap strips. An exemplary filter plate assembly in accordance with this disclosure comprises a filter plate and an engagement assembly, wherein the engager of the engagement assembly is configured to extend in a lateral direction toward the leading end or the trailing end of the filter plate, wherein an extended engager having an engagement end disposed under a shelf of the adjacent top hat mounting assembly defines a closed position, and wherein a retracted engager defines an open position.

3. 发明授权

US10328368B2 Flat-face valve for pulp rotary drum vacuum washer filter 有权
公开(公告)号：US10328368B2
公开(公告)日：2019-06-25
申请号：US15372728
申请日：2016-12-08
申请人： Andritz Inc.
发明人： Todd Grace
IPC分类号： B01D36/00 , B01D33/06 , B01D33/48 , B01D33/74 , D21C9/06 , F16K24/04 , B01D33/09 , B01D33/00
摘要： In a rotary drum for thickening pulp, the rotary drum may include drainage channels for delivering filtrate from a pulp mat on the rotary drum to a filtrate chamber at an end of the rotary drum, and includes a flat face valve and plenum chamber assembly in the filtrate chamber. The flat face valve can be 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. An opening on the flat face valve may extend through the front surface and be 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.

4. 发明申请

US20170087493A1 FLAT-FACE VALVE FOR PULP ROTARY DRUM VACUUM WASHER FILTER 审中-公开
公开(公告)号：US20170087493A1
公开(公告)日：2017-03-30
申请号：US15372728
申请日：2016-12-08
申请人： Andritz Inc.
发明人： Todd Grace
IPC分类号： B01D36/00 , D21C9/06 , B01D33/48 , B01D33/74 , F16K24/04 , B01D33/06
CPC分类号： B01D36/001 , B01D33/0009 , B01D33/06 , B01D33/09 , B01D33/48 , B01D33/74 , D21C9/06 , F16K24/04
摘要： In a rotary drum for thickening pulp, the rotary drum may include drainage channels for delivering filtrate from a pulp mat on the rotary drum to a filtrate chamber at an end of the rotary drum, and includes a flat face valve and plenum chamber assembly in the filtrate chamber. The flat face valve can be 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. An opening on the flat face valve may extend through the front surface and be 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.

5. 发明申请

US20210268410A1 ROTARY DRUM FILTER DECK ASSEMBLY COMPRISING A CLIP 有权
公开(公告)号：US20210268410A1
公开(公告)日：2021-09-02
申请号：US17186507
申请日：2021-02-26
申请人： ANDRITZ INC.
发明人： Jacob Townson , Kent Stubblefield , Anthony Harrington , Todd Grace
IPC分类号： B01D33/067 , B01D33/00
摘要： An engagement assembly for a rotary drum filter, the engagement assembly includes a retaining clip having a body, a first shelf extending outwardly from the body in a first direction and a second shelf extending outwardly from the body in a direction opposite the first direction; and an S-clip having a major concave area configured to receive a leading end or a trailing end of a filter plate, and a minor concave area, and configured to receive the first shelf or the second shelf of the retaining clip.

6. 发明申请

US20150292639A1 FLAT-FACE VALVE FOR PULP ROTARY DRUM VACUUM WASHER FILTER AND METHOD 有权
标题翻译：平面旋转泵真空过滤器和方法的平面阀
公开(公告)号：US20150292639A1
公开(公告)日：2015-10-15
申请号：US14428042
申请日：2013-10-01
申请人： ANDRITZ INC.
发明人： Todd Grace
IPC分类号： F16K24/04 , B01D33/48 , B01D33/74 , B01D33/06
CPC分类号： B01D36/001 , B01D33/0009 , B01D33/06 , B01D33/09 , B01D33/48 , B01D33/74 , D21C9/06 , F16K24/04
摘要： 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.
摘要翻译：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。

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