| 摘要 |
A tank filter having a drag conveyor circulating through the tank interior, the conveyor having flights frictionally engaging a disposable filter media belt to advance the same through the tank during indexing cycles, the belt unconnected to the conveyor to readily separate from the conveyor after passing out of the tank. A distributed bias force generating arrangement is employed to establish a sufficient frictional engagement of the conveyor flights to reliably drive the filter media belt, the arrangement comprised of a pair of spring loaded bars acting on the conveyor to urge the conveyor flights into frictional engagement with the filter media belt, allowing the use of a more steeply inclined exit end wall for a more compact tank structure.
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