Filter comprising open-ended filter cartridges and rotating staggered backflush manifolds comprises flow-concentrating inserts that force backflush streams to flow along filter wall and also transversely

摘要

A filter comprising multiple open-ended filter cartridges (10) arranged about a central axis and staggered backflush manifolds (8A, 8B) that can be rotated about the central axis to flush alternate cartridges in opposite directions comprises flow-concentrating inserts (20) that force backflush streams to flow along the filter wall (14) and also transversely. An independent claim is also included for a filter cartridge with a flow-concentrating insert as above.