| 摘要 |
A filter apparatus for filtering out impurities from a fluid material, which comprises a body of revolution ( 1 ) rotatable by a drive means ( 7, 8 ), at least one filter element ( 32, 42 ) being arranged in said body of revolution, said apparatus additionally comprising a cleaning arrangement for cleaning the filter. In the apparatus, the body of revolution is provided with at least one filter channel system ( 3, 4 ), which comprises an inlet passage ( 31, 41 )and an outlet passage ( 33, 43 ), which in one position of the body of revolution are respectively connectable to an inlet passage and an outlet passage for the material to be purified, and a filter unit ( 32, 42 ) between these, and the body of revolution can be turned into a second position, where the filter channel system is connectable to a second fluid flow passage ( 6 ), which comprises inlet and outlet channels and through which the filter channel system can be cleaned.
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