Introduction to Agricultural Irrigation Filtration Systems

The agricultural irrigation filtration system is a device used for the pretreatment of water sources for farmland irrigation. Its main function is to remove impurities, sediment and suspended matter from the irrigation water, ensuring the cleanliness and stability of the irrigation water quality, thereby improving the irrigation effect and the yield of crops. Irrigation filters are important equipment used in agricultural irrigation systems. According to different filtration principles and media, irrigation filters can be classified into various types:

Screen filter: Screen filters use grids or mesh to filter out large particles of impurities in water. Common types include Y-type filters and T-type filters, etc. They are usually easy to clean and maintain, and are suitable for relatively clean water sources such as tap water or river water.

Particle filter: A particle filter uses particle media (such as sand, quartz sand) to filter water, removing larger particles of impurities and suspended matter. Particle filters are suitable for particle impurities of different sizes and usually require regular cleaning or replacement of the filter medium.

Magnetic filter: The magnetic filter utilizes the effect of a magnetic field to remove iron impurities such as rust and iron filings from water. They are suitable for water sources with a high iron content and can effectively protect irrigation equipment from rust erosion.

Centrifugal filter: A centrifugal filter uses centrifugal force to separate particulate impurities from water and is suitable for removing smaller suspended particles and impurities. Centrifugal filters are usually highly efficient, but the equipment cost is relatively high.

Fiber filter: A fiber filter uses fiber materials to filter water, removing smaller particles of impurities and suspended matter. They usually have a high filtration accuracy and are suitable for occasions with high requirements for water quality.

Sand and gravel filter: The sand and gravel filter uses a layer of sand and gravel to filter water, removing large particles of impurities and suspended matter from the water. They are usually suitable for occasions where water quality requirements are not high, such as farmland irrigation.

Reverse osmosis filter: A reverse osmosis filter uses reverse osmosis membranes to efficiently filter water, removing tiny particles, dissolved salts and organic matter from it. They are suitable for occasions with high requirements for water quality, such as greenhouse cultivation, etc.

The main components of agricultural irrigation filters:

Inlet pipe: It is used to introduce the irrigation water source into the filtration system.

Filtering devices: including particle filters, screen filters, sieve filters, etc., are used to remove large particle impurities and suspended solids from irrigation water.

Sedimentation tank: It is used to settle the sand and gravity sediment in water, reducing the load on the filter.

Filtering media: such as sand filtering media, activated carbon, ceramic filter elements, etc., are used to further remove fine particles and organic matter from water.

Control valves: including inlet valves, drain valves, pressure control valves, etc., are used to control the flow rate, pressure of irrigation water and the operating status of the filtration system.

Outlet pipe: It conveys the clean water that has undergone filtration treatment to the irrigation system.

The working principle of agricultural filters

Filtration treatment: Irrigation water enters the filtration system through the inlet pipe and first passes through primary filtration devices such as particle filters to remove large particle impurities and suspended solids in the water.

Sedimentation: After the water undergoes primary filtration, it enters the sedimentation tank. Through gravity sedimentation, the sand and sediment in the water settle to the bottom of the tank, reducing the load on the subsequent filtration devices.

Refined filtration: After sedimentation, water passes through filtration media such as sand filtration media and activated carbon to further remove fine particles and organic matter from the water, thereby enhancing the cleanliness of the water quality.

Control of discharge: The filtration system controls the flow and pressure of water through control valves. According to the system pressure and water quality conditions, sewage is discharged in a timely manner and the filtration device is cleaned to maintain the normal operation of the filtration system.

Water supply and transportation: Clean water that has undergone filtration treatment is ultimately transported through the outlet pipeline to the irrigation system, providing irrigation for farmland and enhancing the irrigation effect and crop yield.

Through the pretreatment of agricultural irrigation filtration systems, impurities and pollutants in irrigation water can be effectively removed, ensuring the cleanliness and stability of irrigation water quality, improving the irrigation effect of farmland, reducing the failure rate of irrigation equipment, and thus promoting the sustainable development of agricultural production.