| 摘要 |
A device for filtering a liquid substance comprises a container (1) having an inlet (2) for the substance. In the container there is arranged a rotor (6) having an inner rotor part (7) and at least one disc-like outer filter element (8) orientated at an angle to the axis of the inner rotor part (7). The filter element comprises an outer filtrating covering (10) and inner conduits for conveying filtrate passing through the covering to one or more filtrate conduits (11) in the inner rotor part (7). Means (15) are provided for releasing material filtered away from the substance and deposited on the filtrating covering (10). Furthermore, there are means (17) for removing the material released. These removal means are arranged beside the filter element (8) for receiving the material released therefrom. The removal means (17) comprise at least one moveable transport member (35), which is driveable by means of a driving member (36) for displacing the material released substantially parallel to the extent of the filter element at an angle to the axis of the inner rotor part (7). In addition, the invention comprises a method for converting a drum filter into a disc filter, the drum of the drum filter being replaced by a disc filter rotor having transport members of the nature discussed hereinabove.
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