公开(公告)号：US4642195A

公开(公告)日：1987-02-10

申请号：US874400

申请日：1986-06-16

Applicant: Walter Nill

Inventor： Walter Nill

IPC: B01D29/01 ,  B01D35/28 ,  E02B8/02 ,  B01D23/02

CPC classification number: E02B8/026 ,  B01D29/01 ,  B01D35/28 ,  B01D2201/48

Abstract: In order to clean a screen in a waste water purification plant a surge of a body of water is generated by the agency of a dump flushing apparatus, which surge drops in a free fall towards the screen to be cleaned. This surge of cleaning water is given a dimensional extent which ensures for a substantially simultaneous impinging of the body of water onto the total extent of the screen. A framing which surrounds the screen encompasses this surge of water such as to guide the water and to force the water to flow through the screen. During the cleaning or flushing action the contaminants adhering to the screen, which contaminants are substantially of a thixotropic nature, will be removed from the screen and flushed through a sump towards the water purification section of the water purification plant.

Abstract translation: 为了清洗废水净化设备中的屏幕，由倾倒式冲洗装置的机构产生一股水的浪涌，该冲击装置的自动下落朝向待清洁的屏幕自由落下。 这种浪涌的清洁水被给予尺寸范围，其确保水体基本上同时撞击到屏幕的总面积上。 围绕屏幕的框架包括这种浪涌的水，例如引导水并迫使水流过屏幕。 在清洁或冲洗过程中，污染物基本上具有触变特性的粘附在筛网上的污染物将从筛网中除去，并通过污水池向水净化设备的水净化部分冲洗。