公开(公告)号：US5876612A

公开(公告)日：1999-03-02

申请号：US808016

申请日：1997-03-03

申请人： Gordon Astrom

发明人： Gordon Astrom

IPC分类号： B01D29/41 ,  B01D37/00 ,  B01D33/48 ,  B01D33/50

CPC分类号： B01D29/41 ,  B01D2201/082 ,  B01D2201/085

摘要： The present invention is directed to a filter apparatus for filtering out suspended solids from liquid that is passed through filter material supported within a tank. The invention is also directed to a method of cleaning the filter material while the filter material remains inside the tank. The disclosed apparatus and method facilitates the removal of solids which are deposited on the filter material during the filtering operation, as well as biogrowth and other foreign matter. The cleaning method utilizes a suction generating device, such as a pump and associated suction heads, for backwashing the filter material. The cleaning method also utilizes a device for directing a liquid stream of a chemical cleaning solution at high velocity to the filter material thereby chemically washing the filter material and dislodging filtered solids and other foreign matter therefrom. The suction heads and the nozzle heads are positioned relative to the filter material such that substantially all of the runoff which results from operation of the liquid directing device is removed from the filter material by the suction heads.

摘要翻译： 本发明涉及一种用于过滤来自液体的悬浮固体的过滤装置，其通过支撑在罐内的过滤材料。 本发明还涉及一种当过滤材料保留在罐内时清洁过滤材料的方法。 所公开的装置和方法有助于去除在过滤操作过程中沉积在过滤材料上的固体，以及生长生长和其它异物。 清洁方法利用诸如泵和相关联的抽吸头的抽吸产生装置来反洗过滤材料。 清洁方法还利用一种用于将化学清洗溶液的液体流高速引导到过滤材料的装置，从而化学洗涤过滤材料并从其中除去过滤的固体和其它异物。 抽吸头和喷嘴头相对于过滤材料定位，使得由液体引导装置的操作产生的基本上所有的径流通过抽吸头从过滤材料中移出。

公开(公告)号：US5951878A

公开(公告)日：1999-09-14

申请号：US45319

申请日：1998-03-20

申请人： Gordon Astrom

发明人： Gordon Astrom

IPC分类号： B01D33/21 ,  B01D33/50 ,  B01D37/00

CPC分类号： B01D33/21 ,  B01D33/50 ,  B01D2201/082 ,  B01D2201/204

摘要： A filter cleaning apparatus includes a suction generating assembly having a suction generating nozzle, such as an eductor nozzle. The suction generating nozzle has a nozzle inlet, a nozzle outlet, and a suction port in fluid communication with the filter material. The suction generating assembly also includes a suction member positioned in fluid communication with the suction port and positioned adjacent the influent surface of the filter material. A pump is positioned upstream of the nozzle inlet and in fluid communication, on a suction side, with the filter tank or other liquid source. The pump may be operated to deliver operating fluid from the filter tank so as to pass the operating fluid through the suction generating nozzle in a direction from the nozzle inlet to the nozzle outlet. As a result, liquid in the filter tank is drawn through the filter material in a reverse direction and into the suction member. The liquid stream that results acts to remove filtered solids and biogrowth from the filter material. The liquid stream, filtered solids and biogrowth, are discharged along with the operating fluid through the nozzle outlet.

摘要翻译： 过滤器清洁装置包括具有诸如喷射喷嘴的抽吸产生喷嘴的抽吸发生组件。 抽吸发生喷嘴具有喷嘴入口，喷嘴出口和与过滤材料流体连通的吸入口。 抽吸发生组件还包括定位成与吸入口流体连通并且邻近过滤材料的流入表面定位的抽吸构件。 泵位于喷嘴入口的上游，并且在吸入侧与过滤罐或其它液体源流体连通。 泵可以被操作以从过滤罐输送工作流体，以使得工作流体在从喷嘴入口到喷嘴出口的方向上通过抽吸发生喷嘴。 结果，过滤罐中的液体沿相反方向被吸入过滤材料并进入抽吸构件。 所产生的液体物流用于从过滤材料中除去过滤的固体和生长生长。 液体流，过滤的固体和生物增长物与工作流体一起通过喷嘴出口排出。