| 摘要 |
A pressure filter for suspensions comprises a boiler-shaped outer shell (1) the front side of which is closed by a detachable lid (11), a tubular filter element (15) which projects from the lid, a membrane (5) which can be turned up arranged coaxially between the outer shell and the filter element, and a suction and pressure joint (6) arranged on the outer shell. A device for operating the filter comprises a container (25) for a hydraulic fluid (26) which fills the lower part of the container, a gas space (27) being located above the level of the hydraulic fluid. A first line (21) with a force pump (24) conveys the hydraulic fluid from the lower part of the container to the space between the outer shell and the membrane of the outer filter. A second line (28) connects the space between the outer shell and the membrane with the gas space in the container and contains a suction pump (33) which produces a partial vacuum in the gas space in the container. |
