The filter consists of a housing, a multi-element filter, a backwashing mechanism, and a differential pressure controller. The diaphragm in the shell divides the inner cavity into two chambers, the upper chamber and the lower chamber. The upper chamber is equipped with multiple filter cores, which fully utilizes the filter space, significantly reduces the volume of the filter, and the inverse of the filter is installed. Rinse the suction cup. When working, the turbid liquid enters the lower chamber of the filter through the inlet and enters the inner cavity of the filter via the baffle hole. Impurities larger than the gap in the filter cartridge are trapped, the net fluid passes through the gap to the upper chamber, and finally exits the outlet.
The filter adopts a high-strength wedge filter and automatically cleans the filter element through differential pressure control and timing control. When the impurities in the filter accumulate on the surface of the filter element causing the differential pressure between the inlet and outlet to increase to a set value, or the timer reaches a preset time, the electric control box sends a signal to drive the backwash mechanism. When the back flushing suction cup port and the filter inlet are facing right, the blowdown valve opens. At this time, the system drains pressure and drains. A negative pressure area with a relative pressure lower than the outside pressure of the filter core appears inside the suction cup and the filter core, forcing part of the net circulating water from the filter core outside. Inside the filter element, foreign particles adsorbed on the inner wall of the filter element flow into the tray with water and are discharged from the drain valve. The special design of the filter makes the filter element produce a spray effect, any impurities will be washed away from the smooth inner wall. When the differential pressure at the inlet and outlet of the filter returns to normal or the timer set-up time is over, the material will continue to flow during the entire process, and the backwash will consume less water, achieving continuous and automated production.