Silt screens are typically installed at the intake of the power unit, primarily to prevent debris such as branches, weeds, floating objects, and aquatic plants from entering gates, valves, turbines, etc., thus protecting the equipment from damage and ensuring the normal operation of the power generation facilities. In hydropower stations, there are usually two silt screens: one is a floating silt screen, usually positioned upstream near the intake, which can float up and down with the water level; the other is a fixed silt screen (removable), usually located at the intake. During operation, debris on the silt screens should be cleared promptly to minimize water energy loss and prevent the screens from being collapsed by debris. Additionally, during major maintenance shutdowns, the silt screens should be inspected and repaired, including checking for any loose, deformed, or welded grid sections, and for any peeling or rusting of the zinc coating or paint on the metal surfaces. Anti-corrosion treatments should be carried out as needed, usually requiring maintenance every 3 to 5 years.