公开(公告)号：US4243533A

公开(公告)日：1981-01-06

申请号：US19622

申请日：1979-03-12

申请人： Jaakko Savolainen ,  Holger Engdahl ,  Yrjo Luukkainen ,  Martti Tolvanen ,  Jorma Surakka

发明人： Jaakko Savolainen ,  Holger Engdahl ,  Yrjo Luukkainen ,  Martti Tolvanen ,  Jorma Surakka

IPC分类号： B01D29/46 ,  B01D27/00 ,  B01D29/00 ,  B01D29/50 ,  B01D29/62 ,  B01D29/66 ,  B01D29/38

CPC分类号： B01D29/11 ,  B01D29/54

摘要： Periodically operating pressure filter for the concentration of a solid matter suspension, comprising a filtering tank with an input conduit for introducing the suspension to be filtered under pressure, and a drain conduit for removal of the concentrated sludge, and a number of filtering elements suspended from the ceiling, through which the filtrate flows and which are internally in communication with a filtrate collecting tank located above and which thereby collect sludge on their outer surface. The sludge has been arranged to be periodically detached by making the pressure inside the filtering element higher than on its outside. The filtrate is under atmospheric pressure in the collecting tank. For detaching the sludge periodically from the outer surfaces on the filtering elements the pressure has been arranged to be removable from the filtering tank by opening for the suspension residing there, an exit flow, whereby the filtrate in the collecting tank will pass under hydrostatic pressure effect in counter-current fashion through the filtering elements.

摘要翻译： 用于浓缩固体物质悬浮液的定期操作的压力过滤器，包括具有用于在压力下引入待过滤的悬浮液的输入管道的过滤槽和用于除去浓缩污泥的排出管道以及从 滤液流过的天花板，内部与位于上方的滤液收集罐连通，从而在其外表面收集污泥。 通过使过滤元件内部的压力高于其外部，污泥被布置成周期性地分离。 滤液在收集罐内处于大气压下。 为了从过滤元件的外表面周期性地分离污泥，压力被布置成通过打开驻留在那里的悬浮液而从过滤罐移除压力，出口流动，由此收集罐中的滤液将在静水压力作用下通过 通过过滤元件以逆流的方式。

公开(公告)号：US4264445A

公开(公告)日：1981-04-28

申请号：US97691

申请日：1979-11-26

申请人： Juha Lumikko ,  Matti Lankinen ,  Jaakko Savolainen ,  Martti Tolvanen ,  Yrjo Luukkainen ,  Holger Engdahl

发明人： Juha Lumikko ,  Matti Lankinen ,  Jaakko Savolainen ,  Martti Tolvanen ,  Yrjo Luukkainen ,  Holger Engdahl

IPC分类号： B01D29/50 ,  B01D29/00 ,  B01D29/46 ,  B01D29/62 ,  B01D29/66 ,  D21C11/04 ,  B01D29/38 ,  B01D29/30

CPC分类号： B01D29/54 ,  B01D29/66 ,  B01D35/147

摘要： An intermittently operating pressurized filter for concentrating a solid matter suspension, comprising a filtering tank with an inlet conduit provided with a feed pump for introducing under pressure the suspension to be filtered, and a draining conduit provided with valve for removal of the concentrated sludge, and a plurality of filtering elements suspended from the roof, through which the filtrate flows and of which the interior communicates with a filtrate collecting tank located above and which thereby collect on their external surface sludge, which has been arranged to be periodically removed by voiding the pressure within the filtering tank by opening for the suspension therein an exit flow path through a draining conduit. The filtrate in the collecting tank will pass in countercurrent fashion through the filtering elements. In the pressurized filter the filtrate has been arranged to be removed during the filtering step by a filtrate draining conduit departing from the collecting tank, by effect of the pressure produced by the feed pump in the suspension inlet conduit. The collecting tank is of enclosed construction. The sludge has been arranged to be removed from the surface of the filtering elements by the aid of the hydrostatic pressure of the filtrate in the collecting tank, by placing th draining conduit of the collecting tank under atmospheric pressure.

摘要翻译： 一种用于浓缩固体物质悬浮液的间歇操作的加压过滤器，其包括具有进料管的过滤罐，所述进料管设置有用于在压力下引入要过滤的悬浮液的进料泵，以及设置有用于除去浓缩污泥的阀的排水管道，以及 从顶部悬挂的多个过滤元件，滤液通过该过滤元件流过，并且其内部与位于上方的滤液收集罐连通，并且由此在其外表面上收集污泥，其被布置为通过排除压力而周期性地去除 在过滤罐内通过打开其中的悬浮液通过排水管道的出口流动路径。 收集罐中的滤液将以逆流方式通过过滤元件。 在加压过滤器中，通过由进料泵在悬浮液入口导管中产生的压力，滤液已经布置成在过滤步骤期间通过从收集罐离开的滤液排液管道去除。 收集罐采用封闭结构。 通过将收集罐的排水导管放置在大气压力下，通过借助于收集罐中的滤液的静水压力，将污泥排列成从过滤元件的表面移除。