| 摘要 |
The present invention relates to a filtering device which receives raw water, filters the raw water, and discharges the raw water to the outside. The filtering device of the present invention includes: a storage tank provided with a filtration and discharge pipe filtering and discharging the raw water to the outside; a plurality of filtering units connected to the storage tank through the filtration and discharge pipe, filtering the raw water stored in the storage tank, and discharging the raw water to the filtration and discharge pipe; a suction pump suctioning the water filtered by the filtering unit and discharging the water to the outside in a state of being connected to the filtration and discharge pipe; a discharge valve disposed in a lower portion of the storage tank and discharging the treated water discharged after being filtered by the filtering unit to the outside from the storage tank; a backwash unit disposed in the filtering unit and washing a floating material adhering to the filtering unit by using air pressure; and a controller connected to the storage tank, the filtering unit, the suction pump, the discharge valve, and the backwash unit and controlling operations of the storage tank, the filtering unit, the suction pump, the discharge valve, and the backwash unit. The backwash unit sequentially washes the filtering units by being sequentially operated at regular time intervals by control of the controller. |
