Abstract: A screen panel for mining and quarrying industries adapted to be mounted on a screen deck including a wear section (2) and a reinforcement section (1), said wear section (2) comprising a screening surface made up of materials such as herein described formed on said reinforcement section (1) such as herein described, said wear section being the top portion of said panel and said reinforcement section being the bottom portion of said panel, said wear section and said reinforcement section being separate units and said wear section being adapted (4) to be replaceable from time to time, for ensuring smooth functioning of screening operation.

Abstract: A vibratory separator including a skid having a skid magnet and a basket having a basket magnet disposed on the basket, wherein the skid magnet and the basket magnets are arranged to magnetically interact. Also, a method for operating a vibratory separator that includes supplying a current to a skid electromagnet disposed on a skid of the vibratory separator, and interacting the skid electromagnet with a basket magnet disposed on a basket of the vibratory separator.

Abstract: The invention relates to a screen frame adapted for use in a shaker to separate solids from a liquid/solid mixture and to which woven wire mesh is to be attached, comprising an outer perimeter and a plurality of plastics ribs extending between opposing regions of the perimeter, the plastics ribs together forming an upper face and a lower face, wherein the frame further comprises at least one metal rib extending between opposing regions of the perimeter and extending from the upper face to the lower face, and to a shaker comprising at least one such screen frame.

Abstract: A screen has a plurality of flattened wires. The wires are arranged longitudinally in a first direction, and of those wires there are first and second flattened wires are spaced a predetermined distance from each other or contact or appear to contact each other at spaced intervals to form a polygonic spacing to form a desired screen spacing. The deviation from the desired screen spacing is equal to or less than the standard industry tolerance as established by ASTM E2016-11, table 8. A first and second polymeric support member homogenously encase, respectively, a first and second limited selected portions of the plurality of flattened wires spaced apart. There is no additional metal material in, within, or on the first or second polymeric support members, and the desired screen spacing is maintained even when the first and second polymeric support members are applied and cured.

Abstract: A T shaped screen panel seal strip for use in spanning between screen support rails in a vibrating screen is disclosed, which has a plurality of notches therein in registration with the screen support rails so that the strip can be placed over either new or existing screen support rails (after having been cleaned of any cushioning cap material). The strip can be metallic or a plastic material. The method includes retrofitting existing screens with a new sealing strip by first removing any cushion cap material and then placing the T shaped seal strip over the support rails.

Abstract: A screen including a plurality of decks vertically stacked above one another, at least one of the decks bearing at least one sieve, the screen including means for vertically separating the decks from one another, suitable for selectively adjusting a vertical distance between each deck of the plurality of decks and at least one other deck of the plurality of decks.

Abstract: There is provided a screen frame adapted for use in a shaker to separate solids from liquid/solid mixture and to which woven wire mesh is to be attached, comprising a plurality of intersecting elongate members (12) defining a plurality of openings (10), or cells, wherein at least one protrusion (26) in the form of an elongate rib extends partway across each opening (10).

Abstract: Mechanical separators and screening machines, and methods for flexible sieve mat screening are disclosed. In an example configuration, a flip-flow type flexible mat screening apparatus is provided with optimized relative elevation positions for adjacent pairs of first and second mat supports. In one configuration, a portion of the first mat supports is arranged at a lowered or offset position relative to adjacent second mat supports.

Abstract: An ore screening deck frame system which consists of a machine frame having a machine attachment portion and a panel attachment portion having holes spaced along the length there of and a cover which is adapted to extend parallel to the panel attachment support portion has dependent edge skirts that depend below the surface of the panel attachment support portion and also has dependent tubular bosses spaced to fit in the holes of said panel attachment support portion. The frame is made from an inverted L section steel frame member with the upper flange providing the panel attachment support portion. The cover is molded from polyurethane or rubber and encloses the upper flange. The tubular bosses extend from recesses in the surface of the cover and the recesses incorporate an annular shoulder that corresponds to the top of the tubular bosses. The tubular bosses are adapted to receive fastening pins that extend into the bosses and end below the lower surface of the upper flange.

Abstract: A screen has a plurality of flattened wires. The wires are arranged longitudinally in a first direction, and of those wires there are first and second flattened wires are spaced a predetermined distance from each other or contact or appear to contact each other at spaced intervals to form a polygonic spacing to form a desired screen spacing. The deviation from the desired screen spacing is equal to or less than the standard industry tolerance as established by ASTM E2016-11, table 8. A first and second polymeric support member homogenously encase, respectively, a first and second limited selected portions of the plurality of flattened wires spaced apart. There is no additional metal material in, within, or on the first or second polymeric support members, and the desired screen spacing is maintained even when the first and second polymeric support members are applied and cured.

Abstract: A vibrating screen device includes a support structure, which supports apertured screening elements. The support structure includes a plurality of support carriers, each having a straight portion and a spacer part fixed to at least one end of the straight portion. The spacer part of each support carrier engages a spacer part of an adjacent support carrier to space the straight portions apart by a predetermined distance.

Abstract: A screen element (2) of a screen (1) has longitudinal sides adapted to be arranged in a longitudinal direction of a screen frame (4) and transverse sides adapted to be arranged in a transverse direction of the screen frame (4). The transverse sides of the screen element (2) are provided with at least one projection (6) and/or at least one recess (7) for locking engagement, in a direction transversely to the plane of the screen element (2), with a corresponding projection (6) and/or recess (7) on neighboring screen elements arranged in the screen frame (4). A screen (1) with a screen element (2) arranged in a screen frame (4) is also disclosed.

Abstract: A clip rail comprises an elongated body having a first end and a second end. The elongated body defines an upper recess configured to engage with one or more screen panels, the elongated body further defines a lower recess configured to engage a support member of a screening apparatus. Each of the first end and second end includes a two-platform structure, the two-platform structure configured to engage with another two-platform structure, wherein the first platform is offset from the second platform. Further, the first platform is adjacent to the second platform, and the second platform is laterally and vertically offset from the first platform, and the first platform is in a first plane and the second platform is in a second plane.

Abstract: A vibrating screen device for fractionizing stones and gravel includes a support structure, a plurality of carriers mounted on the support structure, and a plurality of screening mats removably mounted on the carriers in side-by-side relationship. Each carrier includes two upright beams forming a slot therebetween. Each screening mat has opposite end parts, wherein respective end parts of two adjacent screening mats are received in each slot. The beams and end parts include protrusions and grooves which are interconnected, and maintained in connection, by a wedge inserted into the slot between the end parts.

Abstract: The invention relates to a method and a device (01) for dewatering and drying a mixture made of plastic granulate and water, having at least one mixture intake (02), through which the mixture is supplied to the device (01), having at least one water outlet (08), through which the precipitated water is removed from the device (01), having at least one granulate outlet (13), through which the dried granulate is removed from the device (01), the device (01) having a dewatering line (06), along which the mixture is dewatered, and the device (01) having a drying line (12), along which the dewatered granulate is dried.

Abstract: A rider bar (5) is essentially made of elastomeric material. The rider bar (5) is intended for a surface of a screen cloth (1) or a wear-resistant lining over which pieces or particles of material are intended to move. The rider bar (5) comprises a wear-resistant element (6).

Abstract: A screen panel retainer assembly, that is utilizable with a vibrating separatory machine, is configured with a plurality of discrete, mushroom-shaped screen panel retainers. Each such retainer has a retainer head that is generally in the shape of a portion of a cylinder, such as a right cylinder. A shank connects each such retainer head to a suitable retainer bar. The retainer bar can be adapted to be attached either to screen stringer tubes of the vibrating separatory machine, or to underlying cross tubes and end cross tubes. The screen panels, which are to be secured to the vibrating separatory machine, have complementary shaped mushroom-shaped screen panel retainer head receiving chambers in their side surfaces. Two such panel edges define a whole chamber. The retainer heads are metal whereas the screen panel edges are resilient. The mushroom-shaped heads securely snap into their complementary chambers yet can be removed from those chambers when the screen panels have to be replaced.

Abstract: Apparatus is provided, in or for a screen separator for sieving materials, for clamping one or more sieve screen frames 78 within the confines of a chassis 40 of the separator to prevent egress of material from the separator. The apparatus comprises a sheath 50 extending around and embracing the chassis 40 and one or more expandable elements 66 for urging the sheath 50 against the chassis 40 and the screen frame(s) 78 to impart uniform clamping pressure to the clamped elements. The sheath 50 is designed to provide ease of mounting and release.

Abstract: A magnetic clamping system for a shale shaker including at least one screen having at least two side ends extending between a first side and a second side and at least one attachment surface. The system further includes at least one mating surface of the shale shaker configured to receive the at least one screen, and at least one magnet disposed between the at least one screen and the shale shaker, wherein the at least one magnet is configured to magnetically couple the at least one screen directly to the shale shaker. Additionally, the system includes at least one decoupling apparatus, the decoupling apparatus having a handle disposed proximate a perimeter of a shale shaker, and at least one shaft that extends horizontally between the handle and one of the at least one magnet, wherein the handle is rotatable to reverse the polarity of the magnet.

Abstract: A T shaped screen panel seal strip for use in spanning between screen support rails in a vibrating screen is disclosed, which has a plurality of notches therein in registration with the screen support rails so that the strip can be placed over either new or existing screen support rails (after having been cleaned of any cushioning cap material). The strip can be metallic or a plastic material. The method includes retrofitting existing screens with a new sealing strip by first removing any cushion cap material and then placing the T shaped seal strip over the support rails.

Abstract: The invention provides a screen module for use on vibratory screening apparatus.

Abstract: A screen for a gyratory sifter including a frame having a plurality of cross-members and a rigid external extension. Additionally, the screen including a filtering element securably attached to the frame. Also, a method for installing a pre-tensioned screen in a gyratory sifter including inserting the pre-tensioned screen into the gyratory sifter. The pre-tensioned screen including a frame having a plurality of cross-members and a rigid external extension and a filtering element securably attached to the frame. Additionally, the method including mating the pre-tensioned screen to a ball box, wherein the mating includes placing the pre-tensioned screen against a contoured section of the ball box, and securing the pre-tensioned screen with a screen plate.

Abstract: An extra-large vibrating screen with duplex statically indeterminate mesh beam excitation body and plate type combined bearing beam comprises plate type flat and rigid statically indeterminate combined bearing beam (12) arranged in a screen box (1), a plurality of Y-shaped statically indeterminate combined reinforcing beams (5) arranged on the side plates (3) of the screen box alternately, duplex statically indeterminate supporting plates (22) linking a plurality of mesh beams (21) to the statically indeterminate connecting plate (4) and the side plate (3) so as to form a container made of a beam system, the vibration exciters (10) in the statically indeterminate mesh beam unit comprising eight sets of vibration exciters, which are aligned in pair horizontally and linked together through universal couplings (9), and connected to the duplex statically indeterminate mesh beam excitation body (11) to form a highly rigid integral vibrating assembly.

Abstract: The invention provides a fastener (10) for a screen panel (20), the fastener including a base section (12) at least two outer engagement means (14) extending from opposite side zones of the base section, the two outer engagement means at least partially opposing one another; and at least one inner engagement means (16) located between the outer engagement means; the inner and outer engagement means including retaining formations (14.2, 16.2) adapted to engage a complementary receiving formation in a screen panel (20) in a snap fit configuration.

Abstract: A hookstrip screen assembly for use in a shaker is disclosed. The hookstrip screen assembly includes a filtering element and a composite frame further including a top surface, a bottom surface, and a plurality of filtering element attachment points. Also, the filtering element is attached to the plurality of filtering element attachment points. In another aspect, a method of forming a hookstrip screen assembly for use in a shaker. The method of forming a hookstrip screen assembly includes forming a wire structure, molding a composite frame incorporating the wire structure and forming a plurality of filtering element attachment points on the composite frame. The method also includes attaching a filtering element to the plurality of filtering element attachment points on the composite frame.

Abstract: A vibrating screening machine for grading bulk materials and the like, with a housing and two sidewalls on which at least one screen deck is mounted on which a screen lining is retained, and a drive means to cause the screen deck to vibrate. Via a material feed, bulk material to be screened is fed and via at least one fine-grain discharge, fine-grain bulk material, and via at least one coarse-grain discharge, coarse-grain bulk material is discharged. The mounting points provided on the sidewalls for mounting at least one screen deck are aligned with a defined grid.

Abstract: A magnetic claiming system for a shale shaker including at least one screen having at least two side ends extending between a first side and a second side and at least one attachment surface, at least one mating surface of a shale shaker configured to receive at least one screen, wherein the shale shaker has a first end and a second end, and at least on magnet disposed between the at least one screen and the shale shaker, wherein the at least one magnet is configured to magnetically couple the at least one screen to the shale shaker is disclosed. A method for replacing a screen in a shale shaker including activating at least one decoupling apparatus, wherein a magnetic clamping system includes the at least one decoupling apparatus, removing at least one screen from the shale shaker, deactivating the at least one coupling apparatus, and installing at least one screen into the shale shaker is also disclosed.

Abstract: The device for delivering bulk material consisting of individual products has a supply container for storing the individual products. A perforated plate is arranged downstream of the product outlet of the supply container on a base stand and serves to receive the individual products from the product outlet and to move them further in a transport direction while removing broken products and dust. A clamping strip is supported and removably fixed in a motion guideway of a motion guideway carrier mounted on the base stand. The motion guideway extends at an angle to a vertical direction. The clamping strip thus removably fixes the perforated plate to the base stand.

Abstract: A clip rail comprises an elongated body having a first end and a second end. The elongated body defines an upper recess configured to engage with one or more screen panels, the elongated body further defines a lower recess configured to engage a support member of a screening apparatus. Each of the first end and second end includes a two-platform structure, the two-platform structure configured to engage with another two-platform structure, wherein the first platform is offset from the second platform. Further, the first platform is adjacent to the second platform, and the second platform is laterally and vertically offset from the first platform, and the first platform is in a first plane and the second platform is in a second plane.

Abstract: A screening assembly 10 includes at least one rail 14 to be secured to a support member of a screening machine to lie parallel to, and intermediate, side members of the screening machine. At least one retaining formation 18 stands proud of an operatively upper surface of each rail 14. The assembly includes a plurality of screening modules 12. Each screening module 12 comprises a supporting structure 64 and a removable screening element 66. The supporting structure 64 has an end supported on the rail 14 so that a pair of supporting structures 64 lie in end-to-end abutting relationship with the abutting ends, in use, overlying the rail 12 and defining a receiving formation through which the retaining formation 18 protrudes to project beyond the receiving formation into a recessed region defined by the abutting ends of the pair of supporting structures 64.

Abstract: A conversion kit for interconnecting particulate screening panels to a support frame includes a plurality of panels, an interface and a connecting pin. A method of using the conversion kit includes the steps of providing at least two of the screening panels each defining at least one locating recess; providing an interface having at least one skirt depending therefrom and a bore therethrough; providing at least one pin defining a head and an opposing extension; attaching the head in the locating recesses to connect the screening panels together; inserting the skirt in an aperture of a support frame; and inserting the opposing extension in the bore of the skirt to attach the screening panels to the support frame for screening particulates.

Abstract: The present invention relates to a screen basket for securing inlets or outlets of tanks, which screen basket can be easily mounted and in particular comprises a high resistance against corrosive surroundings.

Abstract: There is provided an improved screening device (A) comprising a screen panel with projections/rider bars (4) along the longitudinal direction of the top surface, (4B) said projections/rider bars being continuous or discreet and held to the base by bonding sliding or push fitting and provided between the adjacent screen openings apertures FIG. 2).

Abstract: A vehicle for separating a mixed debris stream is disclosed. The vehicle may include an elongate vehicle frame; a separating structure mounted on the vehicle frame and configured to contact the mixed debris stream with a fluid stream to separate the mixed debris stream into at least a first debris stream and a second debris stream; a first conveyor; a second conveyor; and a fluid collection structure configured to receive fluid from at least one of the separating structure, the first conveyor, and the second conveyor, the fluid collection structure including an upper tank, a lower tank, and one or more conduits fluidly connecting the upper and lower tanks, wherein the one or more conduits are free from a valve configured to regulate flow from the upper tank toward the lower tank.

Abstract: A screen system 8 suitable for use in a vibratory screen apparatus 1, comprising: a screen element 11 consisting essentially of a mesh panel 19 provided with first and second elongate support members 22, 23 extending along opposite end portions 20, 21; and a support frame 12 therefore. The support frame 12 has spaced apart first and second elongate frame elements 13, 14 for engagement with said screen element support members 22, 23 and further elongate frame elements 17, 18 extending between the first and second frame elements 13, 14 for supporting the mesh panel 19. The support frame 12 is provided with at least one mesh panel support 27 provided with an elevating support surface, which tensions the screen element 11 across the support surface 27 and between the screen element support members 22, 23. The latter 22, 23 and the first and second frame elements 13, 14 are being formed and arranged for secure interengagement.

Abstract: A method and apparatus for separating material, particularly excavated material is presented. The method and apparatus utilize a releasable and interchangeable screen assembly which is positioned on top of a frame having a slanted grate. The screen assembly includes bar members which traverse the top of the screen and inverted hook members attached to a top surface of the bar members to enable an equipment bucket to engage the inverted hook members in order to lift and move the screen assembly.

Abstract: A screen assembly, holding apparatus for it, and a vibratory separator with it, the vibratory separator, in one aspect, for separating components of material introduced thereto, the vibratory separator including a basket, a collection receptacle beneath the basket, a deck on the basket for mounting a screen assembly thereon, the deck having a plurality of deck pins projecting upwardly therefrom, a screen assembly on the deck, the screen assembly including screening material, the screening material having a plurality of openings therethrough suitable for the flow of fluid therethrough, the fluid from the material introduced into the basket, the screening material having a plurality of spaced-apart screen holes therethrough, each screen hole having therein part of one of the deck pins, vibratory apparatus connected to the vibratory separator for vibrating the screen assembly, and holding apparatus for holding the screen assembly on the deck with a part of a deck pin in each screen hole.

Abstract: A screen assembly which includes a frame, a plurality of openings in the frame, a screen overlying the openings, a plurality of spaced tapered ribs on the opposite side of the frame from the screen, a first end on the frame with a lip, and a second end on the frame with a clip thereon. Another embodiment has a first end with a ledge and a second end with an overhanging portion, and a seal on the ledge.

Abstract: A module is provided for screening or diverting particulate material. A method for producing a module for screening or diverting particulate material is also provided. Each module comprises either a screening member having an array of sieve apertures of a predetermined size defined therein for allowing particulate material up to the predetermined size to pass through the module or a diverting member or redirecting the flow path of the particulate material. A plurality of posts removably and interlockingly supports at least one reinforcing support frame and at least one module. Each reinforcing support frame is interlockably mounted onto the posts, and is readily detachable therefrom. Each module is disposed on the interlocking posts and is mounted onto, and readily detachable from, the reinforcing support frame. Each module is further positioned on the frame such that any particulate material passing through the module passes through the frame.

Abstract: Interconnectible screen assemblies for vibratory separators or shale shakers and methods for manipulating such screen assemblies which, in certain aspects, include a first screen assembly and a second screen assembly positioning at least a portion of the first screen assembly with respect to screen assembly holding apparatus, connecting a second screen assembly to the first screen assembly, and moving the first screen assembly and the second screen assembly together with respect to the screen assembly holding apparatus.

Abstract: A screen assembly which includes a frame, a plurality of openings in the frame, a screen overlying the openings, a plurality of spaced tapered ribs on the opposite side of the frame from the screen, a first end on the frame with a depending lip, and a second end on the frame with a clip thereon. Another embodiment has a first end with a ledge and a second end with an overhanging portion, and a seal on the ledge.

Abstract: Device for separating fine fractions and coarse fractions from bulk goods, comprising a frame and a screen plane supported by it for supporting the coarse fraction and allowing the fine fraction to pass through, the screen plane being formed by a number of screen disks, that have been arranged in groups and detachably on rotating driven shafts, the shafts on both sides being bearing mounted with bearing ends in first and second bearings on the frame and at at least one end being in driven engagement with driving means, the bearing ends being divided into a shaft member permanent to the shaft and a bearing member bearing mounted in the first and second bearings on the frame, which bearing member inter-engages with the permanent shaft member for co-rotation therewith, wherein in both bearing ends the permanent shaft member and the bearing member can be coupled to each other and can be uncoupled from each other by a movement of the shaft transverse to the main direction of the shaft.

Abstract: The vibrating screen has a frame, a screen box, two pairs of springs supporting the screen box over the frame and a driven eccentric shaft mounted under the screen box. The vibrating screen is characterized by a loading pan affixed to the upper end of the screen box. The loading pan has a central region over the upper springs such that a flexion of the structural members under the loading pan is minimum. The loading pan is wider than the screen box and has sloped sides forming a funnel on the upper end of the screen box to retain the side portions of a load until most of the central portion has been moved to the screen box. In another aspect, each spring has torsion bushings therein, with a pair of arms joining the torsion bushings and forming an angle pointing toward the lower end of the screen box.

Abstract: A machine for the processing of minerals using a gravitational method, which can be used in ore and coal mining as well as in other industries. The machine has a unit for loading material to be processed, a unit for unloading the products processed, a drive, a unit for delivering working medium, elastic elements, a box with jigging sieve and tub with working medium connected between each other by rigid mobile elements and supports. The design of the machine provides stability and intensification of jigging process. Besides, there is a considerable decrease of energy consumption and simplicity in the design. A pilot sample of the machine has been made, and testing showed good technological results of processing and proved its high reliability productivity.

Abstract: A vibratory screening machine having a single vibratory motor mounted on its inner resiliently mounted frame by motor mounting structures at its ends, each motor mounting structure consisting of a combination of a fist bracket carrying a directionally stiff bushing with the fist bracket being mounted in a motor mount bracket with the fist bracket having a first cutaway portion positioned within a second cutaway portion in a rib on the base of the motor mount bracket. The directional stiffness of each bushing is aligned with the center of rotation of the vibratory motor, and this will produce linear motion when the unbalance of the vibratory motor is in line with the center of rotation of the motor and the direction of the directional stiffness of the bushings.

Abstract: A fastening device (1) for fastening polyurethane screening panels (6,7) to a screen (8) is made up of a composite fastener and a disc stringer support. The composite fastener is a steel bolt (2) and nut (3) with a polyurethan holding component (4) and a polyurethane cover (9) for the bolt head. The disc and stringer support is a stringer (31) serving as a joist spanning between girders of the screen frame, the stringer (31) having no flange and being narrow and deep, with discs (35) set in the top surface of the stringer at spaced apart positions, having a hole (36) in each disc for the bolt and nut and a recess (38) in the stringer underneath each disc for the nut. The bolt and nut have a toggle (14) which allows insertion into the hole in the disc and tightening the bolt and nut entirely from above the screen.

Abstract: In the rotationally symmetrical screen for fiber suspensions with a series of straight profiled bars which extend the direction of the screen axis and form slot-shaped screen openings between them, and with several ring-shaped profiled bar supports lying in planes extending perpendicularly to the screen axis, each of the profiled bar supports having in its edge region adjacent to the inlet side of the screen a series of cutouts opening towards the inlet side of the screen for insertion of the profiled bars, with the shape of these cutouts corresponding to the configuration of the cross-sectional regions of the profiled bars held positively in these cutouts, in order to simplify insertion of the profiled bars into the cutouts of the profiled bar supports each profiled bar has for each profiled bar support a recess which decreases the width of this cross-sectional region of the profiled bar, and the recesses lie outside the profiled bar supports in the finished screen.

Abstract: A waste recovery station for a beach cleaner for recovering waste raked up by a beach cleaner. A waste recovery station for a beach cleaner includes a pair of station members arranged in parallel with each other through a required spacing. Each station member is provided with a pair of support posts with a foot such as, for example, a circular or square flat plate fixed to a lower end of each support post and is also provided with a guide member fixed to upper ends of the support posts. In the guide member, a longitudinally intermediate portion is formed as a horizontal portion and front and rear end sides are formed as slant portions and are bent downwardly at an obtuse angle. The beach cleaner A is lifted by the guide members while passing between the station members, whereby waste caught on rakes is allowed to drop onto the sand.

Abstract: The invention concerns the field of mineral processing by gravitational method and can be used in ore and coal mining as well as other industries.

Abstract: A panel for screening material, comprising: a frame defining a screening area; a tensioned fiber reinforcement attached to the frame and spanning across the screening area; and a non-tensioned resilient coating surrounding the fiber reinforcement so as to form a plurality of openings to screen the material. A method of making a screen for screening material and a vibratory screening machine apparatus incorporating such a screen panel are also disclosed.