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SCF-QSL Mechanical Manganese Sand Filter
Generally used in the pretreatment process of water treatment projects, mainly to remove mechanical impurities, colloids, microorganisms, organic matter, and active chlorine. The shell materials typically include PE, rubber-lined steel, steel with plastic spray coating, steel with epoxy anti-corrosion, stainless steel, and fiberglass. Depending on different process requirements, the filter media generally include quartz sand, activated carbon, manganese sand, and anthracite. According to the water inlet method, filters can be divided into single-flow filters and double-flow filters. They can also be classified as vertical or horizontal based on site requirements. Depending on the actual situation, they can be used in combination or individually.
Dirty water enters from the filter inlet, first passing through the coarse filter screen to remove larger particles, then reaching the fine filter screen. During filtration, the fine filter screen gradually accumulates dirt and impurities from the water, forming a filter impurity layer. Because the impurity layer accumulates on the inside of the fine filter screen, a pressure difference forms on the inside and outside of the fine filter screen. When the pressure difference of the self-cleaning filter reaches the preset value, a switch signal is sent to the control box PLC system to start a cleaning cycle. Cleaning process: The cleaning mechanism of the fully automatic negative pressure suction filter is a stainless steel spiral up-and-down moving suction scanner. It is hollow in structure, with several suction nozzles vertically distributed at certain distances along its axis. The inside of the suction scanner communicates with the 3” drain valve. When the drain valve opens, the pressure difference between the internal water pressure of the filter and the external atmospheric pressure generates strong suction at each suction nozzle. At each suction nozzle, water flows rapidly from outside to inside in reverse, washing impurities attached to the inner wall of the filter screen into the suction nozzle, through the hollow shaft of the suction scanner, then discharged through the drain valve, completing the cleaning process which takes about 30-60 seconds. At this time, the pressure difference returns to normal, the cleaning process ends, and filtration resumes. During cleaning, the system continues to flow.
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Category:
Manganese Sand Filter
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SCF-QSL Mechanical Manganese Sand Filter
Working Principle:
The manganese sand filter, also known as a pressure filter, refers to the process where raw water, under a certain pressure, passes through a filter medium to remove suspended solids, insoluble particles, eliminate color and odor, and dechlorinate to achieve purification. After purifying a certain amount of raw water, the filter medium is cleaned and restored to its filtering function through backwashing.
Quartz sand filters are one of the earliest and most commonly used methods in the environmental protection field for deep treatment of clean and wastewater. Quartz sand filtration is an effective means to remove suspended solids from water and is an important unit in deep wastewater treatment, wastewater reuse, and water supply treatment. Its function is to further remove pollutants that have already been flocculated in the water by interception, sedimentation, and adsorption through the filter media to achieve water purification.
Quartz sand filters use quartz sand as the filter medium. This filter material has significant advantages such as high strength, long service life, large water treatment capacity, and stable and reliable water quality output. The main function of quartz sand is to remove suspended solids, colloids, silt, and rust from water. Using a water pump to pressurize, raw water passes through the filter medium to remove suspended solids, thereby achieving filtration.
Scope of Application:
Generally used in the pretreatment process of water treatment projects, mainly to remove mechanical impurities, colloids, microorganisms, organic matter, and active chlorine. The shell materials generally include PE, rubber-lined steel, steel with plastic spray coating, steel with epoxy anti-corrosion, stainless steel, and fiberglass. According to different process requirements, the filter media generally include quartz sand, activated carbon, manganese sand, and anthracite. According to the water inlet method, filters can be divided into single-flow filters and double-flow filters, and according to site requirements, they can be vertical or horizontal. They can be used alone or in combination depending on the actual situation.
Dirty water enters from the filter inlet, first passing through the coarse filter screen to remove larger particles, then reaching the fine filter screen. During filtration, the fine filter screen gradually accumulates dirt and impurities from the water, forming a filter impurity layer. Because the impurity layer accumulates on the inside of the fine filter screen, a pressure difference forms on the inside and outside of the fine filter screen. When the pressure difference of the self-cleaning filter reaches the preset value, a switch signal is sent to the control box PLC system to start a cleaning cycle. Cleaning process: The cleaning mechanism of the fully automatic negative pressure suction filter is a stainless steel spiral up-and-down moving suction scanner. It is hollow in structure, with several suction nozzles vertically distributed at certain distances along its axis. The inside of the suction scanner communicates with the 3” drain valve. When the drain valve opens, the pressure difference between the internal water pressure of the filter and the external atmospheric pressure generates strong suction at each suction nozzle. At each suction nozzle, water flows rapidly from outside to inside in reverse, washing impurities attached to the inner wall of the filter screen into the suction nozzle, through the hollow shaft of the suction scanner, then discharged through the drain valve, completing the cleaning process which takes about 30-60 seconds. At this time, the pressure difference returns to normal, the cleaning process ends, and filtration resumes. During cleaning, the system continues to flow.
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