Centrifugal filter filtration uses centrifugal force as the driving force to add suspended liquid to the perforated drum with filter media (such as filter mesh, filter cloth), solid particles are trapped on the filter media, and the liquid flows out through the filter cake layer, and the filtrate and filter cake are separated after the completion of the filtration operation. According to the strict definition, centrifugal filtration only refers to the stage when the surface of the filter cake layer is left with a free liquid layer, i.e. the cake layer formed by filtration is always filled with liquid. Centrifugal filtration, as applied in industry, includes the removal of liquid from the free liquid surface penetrating inside the cake layer and sometimes the removal of water from the washing filter cake. Centrifugal filtration and centrifugal dewatering operations seem to be similar, but they are different in terms of flow rate mechanics and calculation methods.

Centrifugal filter is based on the working principle of gravity and centrifugal force to sweep away solid particles heavier than water. The water enters the centrifugal filter body tangentially from the inlet pipe of the centrifugal filter and rotates to produce centrifugal force, which pushes the sediment and higher density solid particles to move along the wall of the pipe, forming a cyclonic flow, so that the sand and stones enter the sand collection tank and the net water flows out along the outlet, that is, the separation of water and sand is completed. The centrifugal filter needs regular sand discharge and cleaning, and the time depends on the local water quality.

Centrifugal filter is suitable for irrigation of vegetables, fruit trees, greenhouses, flowers, tea gardens, green fields and all kinds of crops in large fields, saving water, energy, improving plant quality, improving product quality, maintaining ecological balance, benefiting the country and the people, and is a necessary irrigation product for the transformation from traditional agriculture to modern agriculture.

The centrifugal filter and sand collection tank are usually installed in the first part of the irrigation system, and the ground should be hardened before installation; a gasket should be added at the flange connection, a pressure gauge should be installed at the inlet and outlet of the filter, the filter body should be placed smoothly, and a pressure test should be done after installation. The whole first part should be installed indoors.

Centrifugal filter maintenance instructions.

1、Check the condition of the pressure gauge, whether it works normally.

2、Timely clean up the sand accumulation tank sandy soil.

3、When winter comes, drain the water inside the filter to prevent rust and corrosion.

4, loading and unloading transport should avoid collision and throwing.

5、Regularly anti-rust treatment of the filter exterior.

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