2results about How to "Short backwash time" patented technology

This invention provides an ultrafiltration membrane module resistant to high suspended solids impact, relating to the field of wastewater filtration technology. It includes a hollow cylinder and an ultrafiltration mechanism within it. The ultrafiltration mechanism includes a membrane filtration unit and an anti-shock component at its lower end. The anti-shock component includes a rotating lower sleeve with lower blades evenly distributed around its outer circumference, and a sludge removal component above it for scraping sludge from the cylinder wall. Below the fixed plate, there is also an mounting sleeve and a rotating upper sleeve, with upper blades evenly distributed around its outer circumference and connected to an upper scraper. During filtration, raw water impacts the lower blades at the inlet and enters the membrane filtration unit, driving the lower scraper to rotate and scrape sludge. Simultaneously, the rising water flow drives the upper scraper to clean the upper section of the cylinder wall. During backwashing, high-pressure purified water impacts the lower blades in the opposite direction, causing them to rotate and scrape sludge, which is then discharged from the sludge removal hole. This invention utilizes hydraulic self-drive to achieve online cleaning of the cylinder wall, effectively buffering the impact of high suspended solids, protecting the membrane surface, and extending its service life.

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.