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Activated carbon filter
Mechanical activated carbon filters are 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 usually 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 independently.
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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Activated carbon filter
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Mechanical activated carbon filters are 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 usually include quartz sand, activated carbon, manganese sand, and anthracite. According to the water inlet method, they 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 based on actual conditions.
Working principle: Activated carbon filters, also known as pressure filters, refer to the process where raw water, under a certain pressure, passes through the filter media 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 media is cleaned and restored to its filtering function through backwashing.
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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