Laminated strainer filter laminates for the impurity processing carrier, which consists of a set of double-sided with different directions of the groove of the plastic plates stacked together, the adjacent surface of the groove edge will form a lot of intersection , These intersections constitute a large number of cavities and irregular paths, which are continuously reduced from outside to inside. When filtered, these pathways cause turbulence in the water, eventually causing impurities in the water to be intercepted at the intersections. If the disc stack installed in the filter skeleton, in the spring and the water pressure to form a loose outside the loose filter unit. Each filter unit is pressed by spring and hydraulic lamination will form numerous filter particles can not pass through the filter, the lamination width of 12-14 mm, laminating material for high-quality engineering plastics, high wear resistance . Auxiliary stainless steel spring support, solid structure. Backwash water flows along the tangential direction of the inner wall of the laminate from the inside to the outside and adheres to various impurities adhering to the surface of the laminate. The laminate rotates under the action of backwash water to ensure that all the dirt is effectively washed and discharged. The time interval and pressure difference can be used to control all steps of backwashing. Once set, you can long-term use. The automatic backwash filter completes the entire automatic backwash process in seconds without disrupting work. The filter with this filter principle can dynamically change the lamination gap when filtering and backwashing. It is very beneficial to improve the filtration performance and filter water quality, and can greatly reduce the amount of backwash water, which is usually 0.25% of water consumption. The different depths and numbers of grooves on the disk determine the filtering accuracy of the filter unit.

Filter stage of the working principle
Flow through the filter into the filter into the filter, the filter stack through the filter stack under the spring force and hydraulic pressure is tightly pressed together, the impurity particles are trapped in the lamination intersection, the filtered water from the filter The main channel outflow, when the one-way diaphragm valve is open.

 Backwash stage of the working principle
When the pressure reaches a certain pressure, or the top of society time to automatically enter the backwash state, the controller controls the valve to change the flow direction, the filter at the bottom of the one-way diaphragm to close the main channel, backwash into the four nozzle channels, and nozzle channels The hydraulic pressure in the connected piston chamber rises, the piston moves upwards to overcome the spring pressure on the laminations and the piston space is released at the top of the laminations, while the backwash water is fed from 35 * 4 nozzles on top of the four sets of nozzle passages The tangential direction of high-speed jet, so that the laminates rotate and evenly separated, spray water jet lamination surface, the interception of impurities in the lamination spray washed thrown. When the backwashing is finished, the direction of the water flow changes again, the laminates are pressed again and the system re-enters the filtering state.

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