The utility model discloses a filter device of circulating backwash, including filter casing, install a set of bearing seat in the inner chamber of filter casing upper end, bearing seat is sealed with a set of filter core rotation connection, and the
rotation action can be realized to filter core through drive
assembly, and cooperate transmission
assembly and drive cleaning
brush rotation, the utility model
centrifugal force throws out high -speed
water flow, and the
impact force of
impurity is greatly promoted, and the mechanical cleaning of cooperation cleaning
brush, under double effect, can more efficiently remove strong
viscosity, firmly attached contaminant and deep pore small
impurity, and backwash efficiency improves obviously, and high -efficient backwash reduces backwash frequency and time, and
water flow energy consumption is reduced, simultaneously, the filter core is because clean thoroughly, and the service life is extended, and the frequency of replacement is reduced, and the overall operation cost is reduced.