Abstract: A plate filter comprises a plurality of shiftable filter plates and first and second deflecting rolls carried on opposite sides of each filter plate. The axes of consecutive first deflecting rolls lie alternatingly in a first plane and in a second plane spaced from one another. A filter cloth is guided in a zigzag course between consecutive filter plates by the first and second deflecting rolls. A first sprocket is affixed to each first deflecting roll and a second sprocket is mounted on each first deflecting roll for free idling rotation. First and second spaced, elongated, oppositely driven chains are respectively trained in a zigzag course in an alternating sequence about first and second sprockets of first deflecting rolls belonging to consecutive filter plates. The first and second chains are in meshing relationship with the first and second sprockets about which the chains are consecutively trained.

Abstract: A plate filter press has a horizontal guide carrier extending in the length dimension of the plate filter press; a plurality of vertically oriented filter plates shiftably supported on the guide carrier; and a filter plate shifting apparatus for individually displacing the filter plates from a closed side towards an open side of the press. The filter plate shifting apparatus has a motor driving a traveling carrier element and filter plate engaging elements mounted on the traveling carrier element. There is further provided a displacement sensor for emitting signals in response to the motion of the filter plate engaging elements and a monitoring and control device connected to the displacement sensor for receiving its signals for determining the position of the successive traveling paths of the filter plate engaging elements with respect to the guide carrier to determine the required displacement characteristics for each filter plate.

Abstract: A filter press includes a plurality of filter elements (filter plates and filter frames) supported in the press stand for displacement along the length of the press. A guide roller is supported on each filter element alternatingly at opposite sides thereof. A continuous filter cloth is trained about each guide roller for guiding the filter cloth in a zigzag course between all adjoining filter elements. At least some of the guide rollers are directly driven by a driving mechanism. The driving mechanism has a sprocket drivingly connected with each driven guide roller and having a rotary axis in alignment with the rotary axis of the associated driven guide roller and a guide wheel mounted on each filter element which supports a driven guide roller. Each guide wheel has a rotary axis spaced parallel from the rotary axis of the respective sprocket.

Abstract: A filter press includes a plurality of filter plates displaceable parallel to the filter press length towards the open side and in an opposite direction towards the closed side of the filter press and a filter plate shifting apparatus for individually moving the momentarily outermost filter plate from the closed side towards the open side.

Abstract: A plate filter press has a plurality of filter plates forming a filter plate stack having opposite ends; an overhead guide carrier supporting the filter plates for individual displacement thereof in a direction parallel to the longitudinal axis of the plate filter press; a longitudinally displaceable head plate arranged at one end of the filter plate stack and having a support face arranged for engaging face-to-face the filter plate stack; an end plate arranged at the other end of the filter plate stack and unshiftably supported on the guide carrier; a power device attached to the head plate; and pull rods attached to the end plate and to the power device for urging, by the power device, the end plate and the head plate towards one another for pressing the filter plates to one another in the closed state of the plate filter press.

Abstract: A filter press has a plurality of filter plates which are individually shiftable by a gripper of a moving mechanism. The filter plates can be releasably locked to one another by a locking hook pivotally supported on each filter plate and engageable behind a detent pin carried by a respective adjoining filter plate. Each filter plate further has a pivotal detent lever operatively connected with the locking hook of the same filter plate and the detent levers of the respective two adjoining filter plates. When the filter plates are close together, the detent levers, by mutual interaction, are pivoted out of the traveling path of the gripper of the moving mechanism.

Abstract: A plate filter press has a horizontal guide carrier; a plurality of filter plates shiftably supported on the guide carrier; a projection affixed to each filter plate; and a filter plate shifting device which includes a carrier element supported for displacement parallel to the guide carrier; a drive for moving the carrier element back and forth; as well as a shifting element and a reversing element mounted on the carrier element and arranged for engaging the projection of the filter plate to be shifted. The shifting element and the reversing element each are single-armed levers pivotally secured to the carrier element. The levers have respective free ends oriented towards one another. A bell crank lever is pivotally mounted on the free end of the reversing lever.

Abstract: A plate filter press has a plurality of filter plates; an overhead guide carrier extending in the length dimension of the press and a suspension displaceably supporting each filter plate on the guide carrier. The filter plates are oriented, with their flat sides, perpendicularly to the length dimension. The suspension comprises first, second and third guide tracks affixed to the guide carrier and extending parallel to one another in the length dimension. The first and second guide tracks define a first guide plane, while the third guide track lies in a second guide plane extending parallel-spaced from the first guide plane. Each filter plate has spaced first, second and third guide elements (such as rollers) engaging the first, second and third guide tracks, respectively. The first and second guide elements are spaced transversely to the length dimension; the third guide element is spaced from the first and second guide elements in the direction of the length dimension.

Abstract: A plate filter press has a plurality of filter plates arranged in a face-to-face series and mounted to be movable towards and away from one another in the longitudinal direction of the filter press. The latter further has a closing device carried by a closing yoke mounted to be movable in the longitudinal direction; a pressure plate disposed at one end of the filter plate series and connected to the closing yoke and mounted to be movable in the longitudinal direction; and an end plate disposed at the other end of the filter plate series. The closing device, when energized, presses the filter plates by the closing yoke and the pressure plate to one another and against the end plate. The end plate is pivotally and linearly displaceably supported to allow its angular displacement with respect to the longitudinal direction and to further allow its shifting in the longitudinal direction.

Abstract: A filter press has a support frame; a plurality of face-to-face oriented filter plates movable towards and away from one another and forming a filter plate stack; a closing device connected to the filter plates for exerting thereon a pressure with which the filter plates are urged to one another; a closing pressure regulator coupled to the closing device; a stationarily supported path-sensing signal transmitter connected to the closing device; and a sensor arm connected at least indirectly to one of the filter plates for displacing the sensor arm by, and as a function of the motion of, that filter plate. The sensor arm is coupled to the path-sensing signal transmitter for controlling the closing pressure of the closing device by the signal transmitter as a function of the position of the sensor arm.

Abstract: In a filter plate-and-diaphragm assembly, the marginal sealing zone of the diaphragm has a sealing rib received in a groove of the filter plate frame. During operation, the diaphragm, with the exception of the sealing zone, is lifted off the filter plate by a pressure medium introduced in a pressure chamber bounded by the diaphragm. The rib is situated in the vicinity of that edge of the sealing zone that is remote from the pressure chamber, so that an intermediate sealing zone of considerable width is disposed between the rib and the pressure chamber.