The Xinxiang Lifilter shallow sand filter is designed to provide exceptional filtration performance. It uses a bed of fine sand as the filtering medium. The sand bed has a large surface area and numerous pores, which can effectively trap suspended solids, sediment, and other impurities in the water. Whether it is for large - scale industrial water treatment or small - scale domestic applications, it can achieve high - precision filtration, removing particles down to a few micrometers in size. This high - efficiency filtration ensures that the treated water meets the required quality standards for various processes.
One of the most prominent features of this filter is its automatic backwashing function. As the filter operates, impurities accumulate in the sand bed, gradually increasing the pressure drop across the filter. When the pressure drop reaches a pre - set value or after a certain period of operation, the automatic backwashing system is triggered. During backwashing, the flow of water is reversed, and a high - velocity backwash flow is used to dislodge and flush out the trapped impurities from the sand bed. This process restores the filter's filtration capacity without the need for manual intervention, ensuring continuous and stable operation.
The filter is constructed with high - quality materials, such as corrosion - resistant steel or reinforced plastics. The housing is designed to withstand high pressure and harsh environmental conditions. This robust construction not only ensures the long - term durability of the filter but also reduces the need for frequent maintenance and replacement. The internal components, such as the distribution system and the underdrain, are also engineered to be reliable and efficient, further enhancing the overall performance and lifespan of the filter.
Xinxiang Lifilter offers a customizable design for the shallow sand filter. It can be tailored to meet the specific requirements of different applications, including flow rate, filtration precision, and installation space. Customers can choose from different sizes, configurations, and additional features according to their needs. For example, in some industrial applications where a large flow rate is required, a multi - vessel shallow sand filter system can be designed. In contrast, for small - scale water treatment in residential areas, a compact and simple - structured filter can be provided.
The operation of the shallow sand filter is relatively energy - efficient. The automatic backwashing process consumes a relatively small amount of water and energy compared to some other filtration methods. Additionally, the long service life of the filter and its components reduces the replacement cost. The low maintenance requirements also contribute to the overall low operating cost, making it an economical choice for both industrial and domestic users.
Location Selection: Choose a suitable installation location for the filter. It should be installed on a flat and stable foundation to prevent vibration and ensure the normal operation of the filter. The location should also be easily accessible for maintenance and inspection. Additionally, consider the proximity to the water source and the equipment that will use the filtered water to minimize pipeline length and pressure loss.
Component Inspection: Before installation, carefully inspect all components of the filter, including the housing, sand bed, valves, pipes, and electrical components. Check for any damage or defects during transportation. Ensure that all components are complete and in good condition.
Tool and Material Preparation: Prepare the necessary installation tools, such as wrenches, screwdrivers, and hoisting equipment. Also, gather the required installation materials, such as gaskets, sealing tapes, and bolts.
Housing Installation: Use hoisting equipment to lift the filter housing to the pre - determined installation location and fix it firmly on the foundation using bolts. Ensure that the housing is level and vertical to avoid any stress concentration on the components.
Sand Bed Filling: Fill the filter housing with the appropriate amount and type of sand according to the design requirements. The sand should be evenly distributed to ensure uniform filtration. After filling, gently compact the sand to prevent excessive movement during operation.
Pipe and Valve Connection: Connect the inlet and outlet pipes to the corresponding ports on the filter housing. Use gaskets and sealing tapes to ensure a tight seal and prevent leakage. Install the control valves, such as the inlet valve, outlet valve, and backwash valve, in the correct positions and connect them to the pipes. Make sure the valves are easy to operate and maintain.
Electrical Connection (if applicable): If the filter is equipped with electrical components, such as a control panel or a backwash pump, connect the electrical wires according to the wiring diagram. Ensure that the electrical connections are secure and properly grounded to prevent electrical hazards.
Initial Inspection: After installation, conduct a comprehensive inspection of the entire installation. Check all connections, valves, and electrical components again to ensure they are properly installed and functioning.
Water Filling and Leakage Check: Slowly fill the filter with water through the inlet valve. Observe the system for any signs of leakage at the pipe connections, valve seals, and other joints. If any leaks are found, tighten the connections or replace the gaskets as necessary.
Backwashing Test: Once the filter is filled with water, perform a backwashing test. Trigger the backwashing system according to the operating instructions. Observe the flow of water during backwashing, the operation of the valves, and the discharge of impurities. Ensure that the backwashing process is normal and effective.
Filtration Performance Test: After the backwashing test, start the normal filtration process. Monitor the inlet and outlet water quality parameters, such as turbidity, suspended solids content, and pressure drop. Compare the test results with the design requirements to evaluate the filtration performance of the filter. If the performance does not meet the requirements, further adjustments or inspections may be required.
