The widespread application of gravel filters

In recent years, new water-savingagricultural irrigationlays the foundation for a new leap in agricultural economyIt has promoted the transformation of traditional agriculture to modern agriculture and made great contributions to accelerating the construction of modern agriculture.Gravel filterapplied tomicro-irrigation projectsinIt is conducive to improvingmicro-irrigation projectsefficiencyand ensures stable and increased agricultural production.

 Gravel filterInmicro-irrigation projectsApplication in:Gravel filterIt is a device that uses gravel as a medium for filtration. It mainly consists of a tank body inlet, outlet, drain port, and sand bed. Auxiliary components include an inlet pressure regulating valve, drain valve, flushing valve, and pressure gauge. According to the design flow requirements of the micro-irrigation headworksMultiple tanks can also be used in parallel combinations. The tank is a steel cylindrical shape. The graded particle size of the sand bed is 1.5～4.0 mm, which is composed of multiple layers of gravel with different particle sizes, with smaller particle sizes in the upper layer and larger particle sizes in the bottom layer. Its filtration principle is that water containing impurities such as mud and sand Enter the tank and then Enter the sand bed. The filtration process is completed when passing through the tortuous pores between the filter media. Mud and sand are retained in the sand bed filter unit, and the filtered water enters the secondary screen filter unit through the sand bed filter unit. During operation, when the pressure difference exceeds the allowable maximum pressure drop, manual cleaning or backwashing should be performed.

 Gravel filterInmicro-irrigation projectsIt has played an immeasurable role in, in the headworks, combined with a multi-layer filter or mesh filter for thorough filtration of irrigation water, thus ensuring the smooth operation of the entire irrigation system, foragricultural irrigationCrop completion of normal irrigation.