電動格柵清污機主要由載有特殊耙齒所組成的回轉柵鏈、減速機驅動傳動裝置、反轉清洗刷及電氣控制箱等部分組成一個整體的機械裝置。各個特殊形的耙齒，在橫軸上連接成耙齒鏈，耙齒間按要求形成一定間隙的柵縫。耙齒鏈隨機體下部沉浸于水原進水口的溝渠中，水流流經耙齒鏈柵隙時，對水體中的污物進行截留，耙齒鏈在機體上部的減速驅動、傳動機構的作用下，繞一定方向（截留污物面向上）緩慢恒速移動將所截留物提出水面，液體從耙齒柵隙中順利通過，進入下道處理工序。 提出液面的污物，由于失去浮力產生下落，由耙齒承托，不致二次混入水體，耙齒鏈運行到機體上部，通過鏈輪及轉彎導軌，耙齒鏈運行方向隨之改變為由上向下，附著于耙齒鏈柵面及承托在耙齒中的大部分污物因自重而脫落，一些粘附在柵縫中的纖維物或質地柔軟的片狀物也同時由設置在鏈輪相應部位的橡膠板轉刷，反向旋轉將其刷下，污物均落入集污槽中排除。由于耙齒鏈是一個封閉式結構，當運行到機體下端時，同樣由轉彎導軌向上轉向，形成回旋運動，自動連續地工作，對水源（或液體）中的飄浮及夾雜物進行清除。The mechanical grille machine mainly consists of a rotary grille chain with special rake teeth, a reducer drive, a reverse cleaning brush and an electric control box. The rake teeth of various special shapes are connected to a rake gear chain on the horizontal axis, and a certain gap between the rake teeth is formed as required. The lower part of the rake tooth chain is immersed in the ditch of the water inlet. When the water flows through the gap of the rake tooth chain, the dirt in the water body is intercepted. The rake tooth chain moves slowly and steadily around a certain direction (the dirt is intercepted facing up) under the action of the deceleration drive and the transmission mechanism of the upper part of the body. Smoothly pass through the rake gap and enter the next way. It is pointed out that the dirt on the liquid surface falls due to loss of buoyancy and is supported by the rake teeth so as not to be secondary mixed into the water body. The rake tooth chain runs to the upper part of the body. Through the sprocket and the turning guide rail, the running direction of the rake tooth chain changes from top to bottom, and most of the dirt attached to the rake tooth chain grid and supported in the rake teeth falls off because of the self-weight. At the same time, some fibers or soft sheets adhering to the gap are brushed by the rubber plate which is arranged at the corresponding part of the sprocket, and the dirt is removed by falling into the dirt collecting trough. Because the rake gear chain is a closed structure, when running to the lower end of the body, the same from the turning rail upward turn, forming a gyration movement, automatic continuous work, the water (or liquid) in the floating and inclusion removal.