Henan Xinxiang Lifelte Filter Co., Ltd. was founded in 2008, is a focus on industrial water treatment equipment research and development, manufacturing and service of national high-tech enterprises. The company is committed to providing efficient and intelligent water filtration solutions for power, petrochemical, pharmaceutical, food and beverage, microelectronics and other industries. Its core product - shallow sand filter, with a unique advection filtration technology and automatic backwashing system, in the domestic and foreign markets set a technical benchmark, products are exported to Southeast Asia, the Middle East and Europe and the United States. With the concept of "technological innovation, quality excellence", Lifelt has passed ISO9001 quality management system certification and has a number of national patents, becoming a technology leader in the industry. As a key equipment in the water quality treatment system, the regular maintenance of the shallow sand filter is an important link to ensure its long-term stable operation and extend the life of the equipment.
The following is the standard maintenance procedure of Lifeldt shallow sand filters for industry users' reference: Shutdown and safety check: The system stops, the inlet and outlet valves are closed, the power is cut off, and the equipment is completely stopped. To release the pressure, open the exhaust valve and release the residual pressure inside the filter to avoid accidents during maintenance. Prepare all maintenance tools (such as wrenches, pressure gauges, and cleaning tools), and wear protective equipment (such as gloves and goggles). Backwash system inspection: backwash valve function test, manually trigger the backwash program, observe whether the automatic flush valve is smoothly opened and closed, and confirm that the backwash drain port is not blocked. Collector condition assessment, check the bottom collector (such as mushroom structure) for damage or blockage, to ensure that the internal circulation is formed properly during backwashing. The packing layer is detected, the access port is opened, and the quartz sand filter layer is evenly distributed, and there is no hardening or loss phenomenon. If the filter material is significantly reduced, it is necessary to add quartz sand of the same specification. Filter layer cleaning and replacement: backwash efficiency verification, start the backwash procedure, record the backwash time (usually 1-3 minutes) and water consumption, evaluate whether the design standard is met. Impurities removal, if there are still stubborn impurities in the filter layer after backwashing, you can use high-pressure water gun to assist cleaning, or use special detergent to soak. Filter layer replacement cycle, according to the water quality and the amount of treatment, it is recommended to replace the filter material every 1-2 years to avoid the aging of the filter material affecting the filtration accuracy. Maintenance of structural parts: carbon steel shell inspection, corrosion detection of carbon steel shell, such as corrosion, should be repaired or re-painted in time.
Calibrate the water distributor, confirm whether the water distributor evenly distributes the water flow, adjust the nozzle Angle or replace the damaged parts to ensure the laminar flow filtering effect. Calibrate the pressure instrument and check the inlet and outlet water pressure gauge regularly to ensure the accuracy of the monitoring data of the head loss. Control system debugging: automatic program test to verify that the PLC control system can perform the filter/backwash switch according to the preset logic, check whether the time setting and pressure threshold are correct. Alarm function check, simulate pressure head loss exceeded or backwash failure, confirm whether the system can alarm in time and switch the standby unit. Record and analyze data, take historical operation data, analyze backwash frequency and pressure head change trend, optimize maintenance cycle. Resume operation and acceptance: Seal inspection, close the access port, and ensure that all ports are sealed without water leakage. Test run, restart the system, observe whether the filtration and backwash process is normal, record the initial head loss data. Archiving documents, updating equipment maintenance records, marking maintenance dates, replacement parts, and anomalies for follow-up tracking. With its modular design, low maintenance requirements and intelligent control, Lifelter shallow sand filters are widely used in reverse osmosis pretreatment, industrial circulating water purification and other fields. Its unique advection filtration technology enables the equipment to maintain excellent filtration results at high flow rates, while the automatic backwash function significantly reduces labor costs. Through the standardized maintenance process, users can effectively prevent the efficiency of the filter clogging or aging caused by parts, ensure the stability of the water quality of the production line, and help enterprises to achieve sustainable production goals. In the increasingly stringent industrial water treatment, scientific maintenance and technological innovation are equally important. Henan Xinxiang Lifelte Filter Co., Ltd. will continue to be customer-oriented, optimize product design, and provide professional operation and maintenance support for the safety of water quality in various industries.
