Bag filters are important equipment in the filtration industry, and we should pay attention to their cleaning. Different bag filters have different cleaning methods. Today, the Red Flag editor will share with you:

The multi connected backwash bag filter cartridge is equipped with a cylindrical filter screen for filtration. When the pressure difference between the outlet and the population reaches a certain value, backwashing is carried out, and the special three-way valves at the upper and lower positions are activated to close the inflow of population and connect the sewage pipe; Close the outlet flow and connect the backwash flow. The backwash water flows through the filter screen from the outside to the inside, washing away the filter residue and discharging it through the sewage pipe.

The suction bag filter uses the suction nozzle inside the filter screen to remove the dirt on the surface of the filter screen. When self-cleaning, the drain valve is opened, and the suction nozzle is connected to the drain pipe. The pressure difference between the drain pipe and the outside causes the suction nozzle to generate strong suction force. The suction bag filter has the following characteristics: compact volume; Reliable mechanical structure; The requirement for flushing flow rate is to ensure the cleaning effect even when the filter pressure is low; The self-cleaning process requires less water and does not cause interruption of downstream fluid supply. It connects two filters, coarse filter and fine filter, with a circular mouth suction nozzle. The suction device is driven by a bidirectional motor with a screw device, and moves in a spiral motion at a fixed speed.

The rotating arm bag filter is a type of multi unit backwash bag filter with a compact structure. Wastewater is filtered when it passes through a filter from the inside out. When the pressure difference between the inlet and outlet reaches the set value, backwashing is carried out. The gear motor rotates the arm to the bottom of the filter cartridge to be cleaned, cuts off the inflow, and opens the drain valve. At this time, a pressure drop is generated on the outer and inner sides of the filter screen, and the filtrate moves in reverse for backwashing. Once the backwashing set time value is exceeded, the drain valve closes and the next filter screen backwashing is carried out.