Automatic backwash filter unique centrifugal plate design, equipment maintenance cost is lower, more water. Groove type filter laminated at the core of the filter element, achieve more thorough and accurate three-dimensional filter. Hydraulic drive of filter backwash of laminated, start automatically according to different demand, at any time. Filtration and reverse wash process at the same time, the system of automatic maintenance will not affect the filtered water. According to different types of suspended impurities are effective, whether inorganic impurities (sand, sediment, etc.), or organic impurities (seeds, seaweed, etc.). Fold type automatic backwash filter realization of surface filtration and deep filtration at the same time, achieve accurate security filtering effect. Ming source cade design of spiral plate unique centrifugal effect, make the large particles in the water before getting into filter laminated in depth by screw on the inner wall of the filter from laminated plate. The disc filter built-in centrifugal effect greatly reduces the frequency of cleaning the laminated, reach the purpose of filter lower maintenance cost and water saving. Laminated automatic backwash filter stage inlet into the operation principle of water flow through the filter.

　　Filter element plane piston will be laminated pressure. Centrifugal plate primary filter characteristic of the centrifugal plate located at the bottom of the filter element. When the water flow into the filter and centrifugal plate plastic knife tangent contact, the centrifugal effect to carry a large particle impurity of water thrown on the inner wall of the filter, and focus on top of a filter. Carry less impurity water contact filtration laminated again, that was needed to significantly reduce the laminated cleaning frequency, achieved the effect of water saving and maintenance easier. Automatic backwash filter laminated deep filtration after primary filtering centrifugal plate, big particle filtering impurities in laminated, to continue through the gaps between the laminated flow into the three-dimensional space of the deep filter, filter the clean water from laminated flow lumen outlet and the impurities in the strainer to clean back flush stage.

　　Laminated automatic backwash filter cleaning stage piston lift operation principle of the filter core, laminated to loosen. Backwash water (filtered with pressure water) from the filter element cylinder holes of, press the green arrow direction injection to the scatter of laminated, make the lamination produces horizontal rotation and movement of vertical vibration. Under the action of rapidly rotating in the laminated flow (orange arrow) to a thorough cleaning, laminated and then press the red arrow direction from the outlet of eduction. Coming to an end when a filtering unit cleaning stage, filter core piston back in first position, pressure laminated, start a new round of filtering. At the same time, the next entered the stage of backwash filtration unit. Laminated automatic backwash filter has the unique function of backwash, filtered water cleaner, thoroughly clean the dirt.