| 摘要 |
A cylindrical filter for filtering contaminants from a contaminated liquid includes a filter chamber having an outer housing (104) and a perforated filter basket (106) disposed within the housing. An open annular region (108) is defined between the housing and the filter basket. An elongated cylindrical bore is within the filter basket. Contaminated liquid passes into the filter basket with liquid passing through the perforations of the filter basket into the open annular region while contaminants are captured and form a filter cake on the inner surface of the filter basket. A first cylinder (30) including a first piston (92) and a first piston head (94) seals with one end of the cylindrical bore and a second piston head (80) seals with other end of the cylindrical bore. The piston heads are movable relative to one another to remove the filter cake from the filter basket, compress the contaminants into a briquette, and eject the briquette from the filter chamber.
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