The mechanical filtration process of irrigation filter
Mechanical filters are a common filtering mechanism in irrigation systems. They remove particulate matter from irrigation water by using pressure difference and filter elements. The main purpose is to reduce blockage and damage to the irrigation system, improve the quality of irrigation water and protect the normal operation of sprinkler irrigation equipment.
The filter element is the core component of the mechanical filter and is usually made of a variety of materials, such as polypropylene, stainless steel and ceramic. According to the characteristics and requirements of irrigation water quality, it is necessary to reasonably select the filter element material. Polypropylene filter elements are suitable for general irrigation water treatment, stainless steel filter elements are suitable for high temperature and acid-base environments, and ceramic filter elements are suitable for high-precision filtration requirements. The accuracy of the filter element determines the size of the particles that can be removed, and the selectable accuracy ranges from a few microns to tens of microns.
The working principle of the mechanical filter is to use pressure difference and filter elements to remove particles. When irrigation water passes through the filter, the pressure difference pushes the water through the filter element, and the filter element is able to intercept the particles. The structure of the filter element is usually stacked or spirally arranged to increase the filtration area and extend the service life of the filter element. When the particles on the filter element accumulate to a certain extent, it needs to be cleaned or replaced. The cleaning process can be carried out by backwashing or chemical cleaning, and the specific method can be selected according to the material and degree of blockage of the filter element.
Mechanical filters have a wide range of applications and are suitable for various agricultural irrigation scenarios. Usually, mechanical filters are installed at the water inlet to prevent particulate matter from entering the irrigation pipes and sprinkler equipment. The main function of the mechanical filter is to reduce the blockage of pipes and sprinkler equipment and protect the normal operation of the irrigation system. In addition, mechanical filters can also be used for the pretreatment of water sources to remove suspended matter and silt in the water to protect subsequent water treatment equipment and irrigation systems.
Mechanical filters have the advantages of good filtering effect and wide application range. By selecting the appropriate filter element material and precision, particulate matter of different sizes and types can be removed, thereby improving the quality of irrigation water. The filter element can be cleaned or replaced as needed to extend its service life. In addition, the structure and operation of the mechanical filter are relatively simple, and maintenance and repair are also relatively easy.