| 摘要 |
A filter element ( 8 ), especially for use in backwash filtering systems, includes a filtering element through which a contaminated fluid flows in at least one direction ( 24 ). An intercepting device ( 62 ) has at least one rod-shaped permanent magnet or electromagnet ( 64 ) that at least partially removes magnetizable, especially ferritic portions from the fluid, before the fluid flows through the filtering element. A detaching device ( 68 ) removes the magnetizable portions from the intercepting device ( 62 ). The detaching device ( 68 ) is configured by a stripper ring ( 70 ) that travels along the rod-shaped magnet ( 64 ) and removes the portions retained by the intercepting device ( 62 ). When the filtering element is backwashed, the stripper ring ( 70 ), moved by the fluid flow, detaches the portions retained by the intercepting device ( 62 ). This filter element requires little construction space and allows for the automatic and energetically favorable removal of magnetizable, especially ferritic portions, when the filtering element is backwashed.
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