Fully Automatic Backwash Filter

Backwash filter is a precision equipment that uses a filter to directly intercept impurities in the water, remove suspended solids and particulate matter in the water, reduce turbidity, purify water quality, reduce system dirt, algae, rust, etc., to purify water quality and protect the normal operation of other equipment in the system. Water enters the self-cleaning filter body from the water inlet. Due to the intelligent (PLC, PAC) design, the system can automatically identify the degree of impurity deposition and give the drain valve signal to automatically drain.

Scope of application: The backwash filter can be installed vertically, horizontally, or inverted in any direction and position. It can be used for water filtration in various industries such as industry, agriculture, municipal power, electronics, medicine, food, printing and dyeing, construction, steel, metallurgy, and papermaking.

 

1. High-precision pressure difference control design, time control, and manual control cleaning;

2. The control display interface is humanized and the operation is very simple;

3. There is no exposed wiring on the outer surface, which is safe and reliable.

4. Control interface: digital display, knob, switch

5. Filter type: metal wedge-shaped mesh;

6. Control mode: pressure difference, time, manual control design;

7. Control mode: time, manual control design;

8. Special filter unit structure design, sturdy and durable;

9. Unique cleaning design achieves low load, low head, and uniform sewage discharge;

10. The direction of the electric control box panel can be adjusted at will to meet user requirements.

Water enters from the inlet, first passes through the coarse filter to filter out larger particles of impurities, and then reaches the fine filter. During the filtration process, the fine filter gradually accumulates dirt and impurities in the water to form a filter impurity layer, which is accumulated on the inner side of the fine filter, so a pressure difference is formed on the inner and outer sides of the fine filter. When the pressure difference of the filter reaches the preset value, the automatic cleaning process will begin. During this period, the clean water supply is continuously flowing, the cleaning valve is opened, and the water pressure in the cleaning chamber and the sewage suction device drops significantly. Through the pressure difference between the filter cartridge and the sewage suction pipe, a suction force is generated between the sewage suction pipe and the cleaning chamber through the suction nozzle, forming a sewage suction process. At the same time, the electric motor drives the sewage suction pipe to make a spiral motion along the axial direction. The combination of the axial motion and the rotational motion of the sewage suction device completely cleans the entire inner surface of the filter. The entire flushing process only takes tens of seconds. The sewage valve is closed at the end of the cleaning. The filter begins to prepare for the next flushing cycle.