2results about How to "Guaranteed backwash effect" patented technology

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.

The invention discloses gravity type ultrafiltration membrane multistage water purification equipment, and relates to the technical field of water purification equipment, the gravity type ultrafiltration membrane multistage water purification equipment comprises a raw water tank, a mixing pool, a filtering tank and a water purification tank, the water outlet end of the raw water tank is sequentially communicated with the mixing pool, the filtering tank and the water purification tank through pipelines, one end of the mixing pool is provided with a feeding box, and a flocculating agent is arranged in the feeding box; a coarse filtering layer is arranged between the inner wall of the filtering box and the outer wall of the inner cylinder; a partition plate is arranged between the filtering box above the coarse filtering layer and the inner cylinder; a plurality of one-way valves are arranged on the partition plate; an ultrafiltration cylinder is arranged below the interior of the inner cylinder; an upper cover and a lower cover are arranged at the upper end and the lower end of the ultrafiltration cylinder respectively, a drainage pipe communicated with the water purification tank is arranged at the center of the lower cover, and an inner drain outlet communicated with the outside is formed in the lower end of the inner cylinder. The air pump blows air to the ultra-filtration cylinder and the coarse filtration layer, and the effect of cleaning the filtration structure is achieved through gas backwashing.