Abstract: The invention relates to a filter device comprising an inlet chamber, an outlet chamber, a filter system which separates the inlet chamber and the outlet chamber. The filter device is characterised in that the inlet chamber comprises at least one liquid supply line and at least one liquid discharge line and the outlet chamber does not comprise a liquid supply and comprises at least one liquid discharge line. The invention also relates to a corresponding filter method.

Abstract: A vibratory apparatus includes a trough assembly comprising first and second plates, the first and second plates joined together in close proximity so as to define a space through which a fluid may pass at a high velocity, a vibration generator coupled to the trough assembly, and a frame resiliently coupled to the trough assembly. Also included is a system including the vibratory apparatus and other equipment, and a method of using the vibratory apparatus.

Abstract: A conveyor device has a sequence of two vibrating screens vertically separated (d) from each other and supplying an alignment bowl, to eliminate chips and residue from nuclear fuel pellets stored in bulk in a boat and to align them in order to fill fuel rods. Due to these two screens, pellets are set aside and turned over, and chips are efficiently separated in a pot, without any congestion of the system.

Abstract: A compact mobile variable angle vibrating screen with an overhead conveyor with an inclined bottom feed support section, an independently positionable intermediate support section, and an overhead head support section where the independently positionable intermediate support section can be relocated to a new position in response to a translation of the bottom feed support structure while maintaining an angular orientation which is half of the angle of inclination of the bottom feed structure.

Abstract: Powder (b) cut and attached to tablet pieces (T1, T2) can be removed smoothly. A tablet dividing feeder (A1) cuts and divides a tablet (T) in a receiving pocket into two halves with a fixed blade as a rotor rotates. Powder removing plates (64a, 64b, 66) are installed in a tablet supplying passage (14) of the feeder. The powder removing plate (64b) is vibrated by a vibration motor (71) to peel the powder (b) attached to the tablet on the powder removing plate and drop the powder (b) from a slit (a). The peeling operation is performed by temporarily leaving the tablet pieces (T1, T2) between the powder removing plates (64a, 64b). The powder removing plate (64b) is fluctuated by a plunger, and the tablet pieces may be left and dropped due to the fluctuation. The tablet piece drops along the powder removing plate (66), and the attached powder is peeled to be guided to a packaging process through a supply opening (90).

Abstract: An apparatus and a method of screening a material containing a solid and fluid where the material is placed on an upper side of a screen element and the material is at least being acted on by vibrations produced by at least one acoustic sound source. The at least one acoustic sound source is arranged to transmit pressure waves to at least a portion of an underside of the screen element.

Abstract: A separator system may include a first trough having an inlet end, a downstream, outlet end and a trough floor, a first screen section supported in the trough spaced from the trough floor, the first screen section having a first end and a second downstream end, a material-retaining surface disposed at the downstream end of the first screen section, the material-retaining surface disposed at an angle relative to the first screen section to limit the movement of material across the first screen section, and a vibratory generator coupled to the trough. The separator system may alternatively or in addition include a gate disposed at the end of the screen section, the gate having a first position and a second position.

Abstract: A cone lip assembly for use in directing particulate material from a vibrating screen unit to a cone crusher includes separate mounting brackets to facilitate the attachment and detachment of the cone lip assembly from the vibrating screen unit. The cone lip assembly includes a main body defined by a pair of side plates that transition from an infeed end to a discharge end. The cone lip assembly includes a pair of mounting brackets that allow secure attachment and detachment of the entire cone lip assembly from the vibrating screen unit. The mounting brackets are formed separate from the main body of the cone lip assembly.

Abstract: A screen frame assembly is provided for use with a screening machine. The screen frame assembly includes first and second generally planar screen frames and a coupling between the first and second screen frames that includes a tab in the first screen frame and a receiving slot in the second screen frame. The receiving slot is configured to receive the tab and includes a centering feature for laterally aligning the first and second screen frames relative to one another. The centering feature may include a pair of opposed inwardly angled edges of the receiving slot. The coupling may include an overlap region between the first and second screen frames that is engageable to thereby permit lifting of the second screen frame by a lifting force exerted upon the first screen frame.

Abstract: A separator system may include a first trough having an inlet end, a downstream, outlet end and a trough floor, a first screen section supported in the trough spaced from the trough floor, the first screen section having a first end and a second downstream end, a material-retaining surface disposed at the downstream end of the first screen section, the material-retaining surface disposed at an angle relative to the first screen section to limit the movement of material across the first screen section, and a vibratory generator coupled to the trough. The separator system may alternatively or in addition include a gate disposed at the end of the screen section, the gate having a first position and a second position.

Abstract: An apparatus includes a separation deck free of stepwise changes in elevation between a first end and a second end, the separation deck comprising a plurality of spaces through which a constituent material may pass, a plurality of scrubbers disposed on the deck, the plurality of scrubbers having a first end disposed at a higher elevation than the deck in at least a first state, and a vibratory generator coupled to the deck. The mixed material moves over the deck and the scrubbers from the first end to the second end by the motion imparted by the vibratory generator. Components of the mixed material move relative to each other as the components move over the scrubbers, thereby causing the constituents material attached to the components of the mixed material to separate and pass through the spaces in the separation deck.

Abstract: An apparatus for the removal of objects and other debris from cement that is pumped via a concrete pump includes a secondary screen that is pivotally attached at one end thereof to a concrete pump a predetermined distance above a grate that is disposed over a hopper, the screen having a smaller opening size than that of the grate. An opposite end of the screen is urged toward an opposite end of the hopper by a pair of elastomeric straps. A pair of upraised sides are included at a top and bottom of the screen, the screen having a planar member that is disposed at a steeper angle than is the grate. When cement is poured it first contacts and passes through the secondary screen which automatically descends and rises, thereby maximizing the flow rate of cement through the screen as the objects are removed from the mixture.

Abstract: A screening machine of the type used to separate or classify mixtures of solid particles of different sizes includes a fixed base and a perforate screen deck mounted for movement relative to the base during a screening operation. Leaf springs connect the tail end of the screen deck to the fixed base so that the leaf springs support the tail end of screen deck for movement relative to the base. The leaf springs are oriented horizontally to avoid introducing vertical movement to the screen deck as it moves to and from the head and tail ends. The leaf springs are offset or deflected when the machine is at rest or in the neutral mid-point of its stroke. This arrangement advantageously utilizes the bias of the leaf springs to accelerate, assist or enhance movement of the screen deck during portions of its stroke and likewise to decelerate, hinder or retard the movement during other portions of its stroke. With an appropriate offset, an increase in the effectiveness of the screening process (i.e.

Abstract: A sieving device and the operation of a sieving device are proposed. The sieving device has a supporting frame which can be made to vibrate and a vibration frame which is held so as to be able to vibrate freely in relation to said supporting frame. A simple, compact design which provides good sieving and conveying performance is achieved in that the vibration frame is spring-elastically coupled to the supporting frame by helical springs, with the main spring axes of the spring elements extending in the direction of vibration of the tension waves. Furthermore, guiding elements for movable bearing arrangement of the vibration frame on the supporting frame are provided. The sieving device is operated in particular at a vibration frequency of at least 850 vibrations per minute at an average speed of approx. 11 m/s and at an average acceleration of the vibration frame relative to the supporting frame of approx. 2.2 m/s2.

Abstract: A sieving device and the operation of a sieving device are proposed. The sieving device has a supporting frame which can be made to vibrate and a vibration frame which is held so as to be able to vibrate freely in relation to said supporting frame. A simple, compact design which provides good sieving and conveying performance is achieved in that the vibration frame is spring-elastically coupled to the supporting frame by helical springs, with the main spring axes of the spring elements extending in the direction of vibration of the tension waves. Furthermore, guiding elements for movable bearing arrangement of the vibration frame on the supporting frame are provided. The sieving device is operated in particular at a vibration frequency of at least 850 vibrations per minute at an average speed of approx. 11 m/s and at an average acceleration of the vibration frame relative to the supporting frame of approx. 2.2 m/s2.

Abstract: A modular screening apparatus has four parallel shafts arranged in a single plane mounted to each module. The shafts extend between the sides of the machine frame and are driven by a motor and timing belts which connect the shafts directly or indirectly to the drive motor. Each shaft supports three beater bars which are equally spaced about the axis of the shaft. A screen bed defined by a perforated polyurethane plastic sheet overlies the plane containing the driven shafts. The sheet serves as a screen which is clamped at its upstream edge, the downstream end extending over a fixed bar and vertically downwardly, to suspend a weight. The sides of the screen abut adjustable side plates which are mounted to the machine frame and define the boundaries of the screen bed. The beater bars rotate on the shafts to strike the underside of the screen.

Abstract: Milling/sizing apparatus which includes individual and/or nested sieves each of which may also include a quantity of beads, disks and/or other geometric or non-geometric shapes. The sieves can be rotated, vibrated or agitated in any and all combinations by various methods to achieve independently horizontal rotation and vertical reciprocation (similar to a merry-go-round) to efficiently segregate, size or mill cohesive and polydisperse powder particles to specific size ranges. The invention also contemplates a method for using the apparatus in the sizing and quantification of aggregated particles of cohesive disperse powders.

Abstract: A vibratory drive for use with a screening machine for draining and/or sizing of grain solids, the drive having two eccentric shafts which are driven synchronously and in counterrotation and which have different unbalanced masses 7, 8. The eccentric shafts are arranged as near as possible to the mass center 16 of the screening machine. The angle of the mass forces of the unbalanced masses 7, 8 of the eccentric shafts includes an angle of 60.degree. to 90.degree., preferably 90.degree., between the main direction of oscillation 18, i.e., the long axis 19 of the ellipse oscillation as a resultant of the centrifugal forces, and the zero line 17, i.e., the tie line of the eccentric shafts.

Abstract: A vibratory screen apparatus (10) for the separation of solids has a cleaning system to clean the screen bed (15) of adhering solids, such as matted fibrous materials. A water discharge assembly (52) includes a water dispensing tubular member (60) in which elongate slots (76, 78) are provided to discharge pressurized water in a continuous stream or curtain across the entire width of the screen bed (15). The water dispensing tubular member (60) is mounted on a movable slide (54) for back and forth movement along the length of the screen bed (15) by a sprocket chain (72). An endless belt conveyor (104) has an upper run (108) on which the solid materials are deposited enclosed within a tubular conduit (114) for protection of the solid materials being transported by the conveyer (104).

Abstract: A powered screening apparatus having a pair of spaced elongated side members, a screen surface supported between the side members, a frame member supported between the side members and beneath the screen surface, a first hammer mounted to the side members beneath the screen surface, a second hammer mounted to the frame member, a first vibrator attached to one of the side members and the second hammer and a second vibrator attached to the other side member and the second hammer. The apparatus is equipped to permit the side members to vibrate independently of each other.

Abstract: A sifter having a resiliently mounted housing with horizontal vibrated screens. Airborne material to be sifted is introduced between the screens where it is deflected by a deflector and a breaker ring to distribute material both upwardly and downwardly to the screens. An external passage from above the upper screen conveys air and material to a discharge pipe below the lower screen and below a bottom pan which feeds into the distribution pipe. An extended passage for discharging oversize material from between the screens is open along its length to the lower screen. A weir at the inlet of the extended passage has a thin slit below and a larger hole above to allow material under certain conditions to flow into the outlet passage.

Abstract: An apparatus is disclosed for screening and separating wood chips or the like according to thickness. In the illustrated embodiment, the apparatus comprises two generally horizontal decks mounted one beneath the other, and with each deck having three screening sections disposed in a serial arrangement along its longitudinal length. Each screening section comprises an opening in the associated deck, a stationary grid composed of parallel rod elements disposed in the opening, and a movable grid which is also composed of a plurality of rod elements and which are disposed in alternating relation with the rod elements of the stationary grid. Further, the grids are arranged so that the gaps between the rod elements are parallel and of predetermined uniform separation throughout.

Abstract: An apparatus for delivering a stream of green pellets has a wide belt conveyor and a vibrating conveyor having a deck for supporting the green pellets and conveying the green pellets to the wide belt conveyor in a direction of conveyance over a discharge edge. The discharge edge has an adjustable configuration and extends at an acute angle to the conveyance direction across the conveyance surface of the wide belt conveyor whereby the green pellets discharged over the edge form a layer on the conveyance surface. A plurality of parallel deck bars are axially slidably connected to the vibrating conveyor deck and have end portions protruding therefrom in the conveyance direction, the protruding deck bar ends defining the discharge edge. The deck bars are connected to drives for axially sliding the deck bars for adjusting the discharge edge configuration.