| 摘要 |
A vacuum filter having a filter tank provided with a lower vacuum chamber covered with a filter medium and connected to the intake of a pump. The filter medium, either a paper web or a fibrous filter aid, is removed when contaminated by a chain and flight conveyor after the vacuum is relieved. The vacuum is relieved by a single power actuated valve operable to supply clean liquid to the pump from a clean liquid tank and to supply a limited amount of liquid to the vacuum chamber.
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