FA Water Filter

Product Overview:

The FA series high-efficiency fully automatic water purification equipment is elevated by the original pump and mixed after dosing through a static pipeline mixer. The internal spiral blades of the mixer guide the water flow for automatic hydraulic mixing. It then passes through the water distribution, reaction, and flocculation zones, continuously increasing the size of the tiny alumina flower particles. Afterward, it passes through a two-layer directional inclined tube packed sedimentation zone, where the sludge flows into the sediment collection basin, and the clear liquid on the upper layer of the packing flows into the filtration zone for filtration, resulting in filtered water turbidity ≤5 NTU.

Application Scope:

The equipment is suitable for water sources with raw water turbidity ranging from 20 to 3000 mg/l, such as rivers, lakes, reservoirs, and more. It can serve as a public water supply plant for rural areas, industrial and mining enterprises, etc. Additionally, it can be used as a pretreatment facility for various desalination systems.

Operating Principle:

The water purifier is equipped with a high-level storage tank (clean water chamber) that also serves as a backwashing water tank. As the surface of the filter material accumulates more impurities (floc particles), the water flow rate continuously decreases. This causes the water level in the clean water chamber to rise, and once it reaches a certain level, it automatically forms an siphon. At this point, the water flow direction changes, passing through a conduit from the bottom of the filter material upwards, and exiting through the backwashing drain port. The water in the tank, combined with the water from the original pump, is simultaneously reversed to achieve the predetermined backwashing strength. When the water in the tank drops to a low point, the air intake pipe and the destruction trough are exposed to the water surface. The air intake pipe then introduces air, breaking the siphon, and immediately stops the backwashing, changing the water intake direction back to the original normal operating state.

The filter room is further divided into several workstations, with each station's backwashing duration set at 4 to 6 minutes. The backwashing principle here is entirely automated using siphon and anti-siphon principles, ensuring no malfunctions or operational loss of control. Only sludge removal is achieved through an electric valve, whose operation is timed, typically opening every 4 hours. The specific timing can be temporarily adjusted based on the original water turbidity.

Basic Parameters Table: