FILTER Russian patent published in 2015 - IPC B01D29/66 

FIELD: technological processes.

SUBSTANCE: invention is designed for filtration. A filter (10) regenerated by means of backwashing for filtration of domestic potable water comprises connection valves (12) with an inlet connection (20) and an outlet connection (22), a sleeve (14), which is located between connections, a closed drain hole (56) at the lower end of the sleeve, a filtering element located in the sleeve coaxially to it (16), the inner part of which communicates with the outlet connection. Between the sleeve and the filtering element there is a circular cavity, which communicates with the inlet connection. In the specified cavity there is at least one channel (68) open at the side of the filtering element, which communicates with the drain hole. The filtering element is installed as capable of rotation around its longitudinal axis and thus with the possibility of its surface movement relative to the channel (68). The filtering element has an inner space and is formed by a support or bearing element with a cylindrical net, filtering ribs passing in circumferential direction or other filtering material regenerated by means of backwashing.

EFFECT: profitability, simplicity of design.

9 cl, 12 dwg