EP4059622B1 - Appareil d'écran avec multi-décharge - Google Patents

Appareil d'écran avec multi-décharge Download PDF

Info

Publication number
EP4059622B1
EP4059622B1 EP21162486.1A EP21162486A EP4059622B1 EP 4059622 B1 EP4059622 B1 EP 4059622B1 EP 21162486 A EP21162486 A EP 21162486A EP 4059622 B1 EP4059622 B1 EP 4059622B1
Authority
EP
European Patent Office
Prior art keywords
discharge
conveyor
discharge conveyor
stream
graded
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP21162486.1A
Other languages
German (de)
English (en)
Other versions
EP4059622A1 (fr
Inventor
Malachy James Rafferty
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Portafill International Ltd
Original Assignee
Portafill International Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Portafill International Ltd filed Critical Portafill International Ltd
Priority to EP21162486.1A priority Critical patent/EP4059622B1/fr
Publication of EP4059622A1 publication Critical patent/EP4059622A1/fr
Application granted granted Critical
Publication of EP4059622B1 publication Critical patent/EP4059622B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
    • B07B13/14—Details or accessories
    • B07B13/16—Feed or discharge arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/005—Transportable screening plants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/12—Apparatus having only parallel elements
    • B07B1/14—Roller screens
    • B07B1/15—Roller screens using corrugated, grooved or ribbed rollers
    • B07B1/155—Roller screens using corrugated, grooved or ribbed rollers the rollers having a star shaped cross section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/18—Drum screens
    • B07B1/22—Revolving drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B2201/00—Details applicable to machines for screening using sieves or gratings
    • B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens

Definitions

  • the present invention relates to a mobile multi-deck screening apparatus for separating unconsolidated feed materials that contain a mixture of particle sizes into three graded streams of particle sizes, also referred to as fraction size, which can then be provided from the apparatus as two or three final discharge streams.
  • Quarries, building sites, waste processing facilities and composting facilities utilise various types of screening technologies.
  • the chosen technology will depend on the application, feed material and the desired separation.
  • screening machines start with a feed hopper or the like, a mechanical screen, and one or more conveyors to transfer the processed materials to a nearby location or to a secondary processing plant.
  • a mechanical screen separates material via liner, vibratory or rotary movement. This movement agitates and moves the feed material along a screening deck.
  • Mechanical screens typically comprise of one or more decks.
  • a deck is a frame or apparatus that holds the screen media.
  • a multiple deck screen contains a series of screen decks, each containing a different media; and where one deck is placed above another.
  • the media is the material or apparatus that defines the screen's apertures size.
  • Screen media can be made from woven wire cloth, steel mesh, perforated steel plate, perforated synthetic mats, finger tines or rotating discs.
  • a multi deck screen can separate feed material into two or more fractions.
  • a screening machine capable of producing two fraction sizes is commonly referred to as a two-way-split; these fractions are generally classified as 'oversized' and 'undersized'.
  • a screening machine capable of producing three fractions is commonly referred to as a three-way-split; these fractions are classified as 'oversized', 'midsized', and 'undersized'.
  • An integral and mobile apparatus capable of operating either as a two-way-split or as a three-way-split is advantageous in several circumstances, for example where the applications or the composition of feed material is variable, or where space is limited, or where the noise of two fixed machines is environmentally too much. This is particularly when processing waste material such as, construction and industrial waste (C&I), and Municipal solid waste (MSW).
  • waste material such as, construction and industrial waste (C&I), and Municipal solid waste (MSW).
  • the present invention details apparatus able to be configured to operate either as a two-way-split or as a three-way split.
  • a mobile multi-deck screening apparatus for screening a mixed material into three graded streams, the apparatus comprising two or more overlapping screening decks and at least three discharge conveyors, wherein one discharge conveyor is a switchable conveyor selectively switchable between an active state such that each discharge conveyor discharges one graded stream, to an inactive state such that one discharge conveyor discharges two graded streams, and wherein the switchable discharge conveyor has a stream-collecting station for the switchable discharge conveyor, located in its active state above another discharge conveyor, wherein the stream-collecting station and the switchable discharge conveyor are moveable together between an active stream-collecting position to an inactive non-collecting position.
  • one discharge conveyor is a switchable conveyor selectively switchable between an active state such that each discharge conveyor discharges one graded stream, to an inactive state such that one discharge conveyor discharges two graded streams
  • the switchable discharge conveyor has a stream-collecting station for the switchable discharge conveyor, located in its active state above another discharge conveyor, wherein the stream-collecting station and the switchable discharge conveyor are moveable together
  • a method of switching the discharge of a mixed material graded into three graded streams comprising at least the steps of:
  • the present invention comprises; a discharge conveyor for collecting and discharging the oversized fraction, referred to as the oversize conveyor; a discharge conveyor for collecting and discharging the midsized fraction, referred to as the midsize conveyor; an internal conveyor for collecting the undersized fraction, referred to as the collection conveyor; and a discharge conveyor for discharging the undersized fractions, referred to as the undersize conveyor.
  • the present invention describes how an oversize conveyor can be switched to divert the flow of oversized material to a midsize conveyor, allowing the midsize conveyor to function as a 'two in one' discharge conveyor.
  • the midsize conveyor can be repurposed and used to collect and transfer the oversized and midsized material together as one fraction, thus making the oversize conveyor unrequired.
  • the invention can produce oversized and undersized fractions only.
  • the invention also describes how an oversize conveyor can moved back into position to re-collect and transfer the oversized material, therefore allowing the screening machine to revert to providing oversized, midsized, and undersized fractions.
  • the present invention provides a mobile multi-deck screening apparatus for screening a mixed material into three graded streams, the apparatus comprising two or more overlapping screening decks and at least three discharge conveyors, wherein one discharge conveyor is a switchable conveyor selectively switchable between an active state such that each discharge conveyor discharges one graded stream, to an inactive state such that one discharge conveyor discharges two graded streams.
  • the apparatus has a main chassis to support the two or more overlapping screening decks and the at least three discharge conveyors, and a tracked mobile chassis.
  • the apparatus may further comprise one or more sub-frames, and provides an integral apparatus in operation.
  • the apparatus may be mobile using wheels, tracks, and other such means, or combinations of same.
  • the apparatus further comprises one or more internal conveyors to convey a graded stream to a discharge conveyor.
  • the internal conveyors may be suited to collect a particular graded stream, such as the finest-graded stream, thereby acting as a collection station for such stream, which can then be conveyed to one end of the relevant discharge conveyor for discharge beyond the apparatus for further processing or stockpiling or the like.
  • the apparatus comprises;
  • the switchable discharge conveyor is a first discharge conveyor for collecting and discharging a relative oversized fraction of the mixed material.
  • oversized, midsized, and undersized are used herein in a relative sense to each other, and in a manner known in the art.
  • the apparatus further comprises a stream-collecting station for the switchable discharge conveyor, optionally all of the discharge conveyors.
  • Each discharge conveyor may have the same or a different form, type, design or shape of stream-colleting station.
  • a stream-collecting station may comprise any suitable form of collection chute, vessel, tray, bay, hopper or conveyor, able to collect the relevant graded stream discharged at the end of a screen, and to guide or transfer such material to one end of a discharge conveyor.
  • a stream-collecting station may only be the feed end of a discharge conveyor, or take the form of one or more walls, plates or baffles, designed at or near or around the feed end of a discharge conveyor.
  • a stream-collection station at or near the feed end of the switchable discharge conveyor, optionally formed as a tray.
  • a stream-collection station is for collecting a relative oversized fraction of the mixed material.
  • a stream-collecting station for the switchable discharge conveyor is located in its active state above another discharge conveyor.
  • the stream-collecting station for the switchable discharge conveyor is not located in its inactive state above another discharge conveyor.
  • the relevant graded stream provided at one end of a screen, and previously collected and transferred to the switchable discharge conveyor is now provided to a feed end of another discharge conveyor.
  • this can be carried out with the aid of gravity, i.e. allowing such the discharged graded stream to fall by gravity directly towards the feed end of another discharge conveyor.
  • This re-combines two graded streams from the apparatus, for subsequent discharge by one discharge conveyor.
  • the stream-collecting station for the switchable discharge conveyor and the switchable discharge conveyor are moveable together between an active stream-collecting position to an inactive non-collecting position.
  • the stream collection station and switchable discharge conveyor may be secured together, or secured to a single frame or sub-frame to form an integral unit.
  • the stream-collecting station for the switchable discharge conveyor and the switchable discharge conveyor are moveable relative to a ground surface in a direction relative to the apparatus comprising one or more of the group comprising: horizontal, vertical, lateral, or a combination of same.
  • the stream collecting station and switchable discharge conveyor could be moveable vertically relative to the remainder of the apparatus, such that the stream collecting station is no longer located at the same height relative to the discharge end of a screen, and is therefore no longer able to collect such discharge stream.
  • the stream collecting station and switchable discharge conveyor could be translated horizontally away from a screen, to achieve the same non-collecting effect.
  • the stream collecting station and switchable discharge conveyor are moveable diagonally away from the apparatus. All such movement of the stream collecting station and switchable discharge conveyor could be based on a frame or sub-frame, which frame or sub-frame is moveable relative to the apparatus by one or more actuators, motors or other drives known in the art.
  • the stream-collecting station for the switchable discharge conveyor is selectively switchable between discharging to the switchable discharge conveyor, and discharging to another discharge conveyor.
  • the stream collecting station for the switchable discharge conveyor may have one or more chutes, baffles, floors, walls or sides, able to collapse or move, thus changing the direction of the collection of the graded stream from the end of the relevant screen in a different direction than towards the feed end of the switchable discharge conveyor.
  • the stream collecting station thus switches the direction of the graded stream to another discharge conveyor, typically including a vertical translation using gravity, for such graded stream to be re-combined with another graded stream, before co-discharge by another discharge conveyor.
  • the switchable discharge conveyor is supported on a frame moveable relative to a frame supporting the two or more overlapping screening decks
  • the switchable discharge conveyor is supported on a frame moveable relative to a frame supporting another discharge conveyor.
  • each screen in the apparatus has a feed end and a discharge end.
  • the two or more overlapping screening decks have the same or different material flow directions from an infeed hopper end to each relevant screen-discharge end.
  • a collection conveyor for the smallest discharge stream such as the 'undersize' fraction, could be used to convey material back towards an infeed end.
  • An undersized discharge conveyor could be positioned at the back of the screening apparatus, or underneath the feeder to the screening apparatus.
  • the two or more overlapping screening decks have the same material flow direction from an infeed hopper end to the same or similar screen-discharge ends, and one end of each of the three graded discharge conveyors is located at or near such screening-discharge end or ends.
  • Each screen of the multi-deck may be the same or different, to achieve a vertical partial, substantial or full overlapping arrangement.
  • Each screen can be either vibrating, oscillating or rotating, (i.e. having a rotating drum or rotating disks).
  • Each deck can be made of any of these type of screens.
  • a two-deck arrangement generally has a 'top' deck and a 'bottom' screen. Non-limiting examples include: (1) a top deck vibrating screen and a bottom deck star screen; (2) a top deck disc screen and a bottom deck vibrating screen; (3) a top deck vibrating screen and a bottom deck rotating drum screen; (4) a top deck disc screen and a bottom deck rotating drum screen; and. (5) a top deck disc screen and a bottom deck disc screen.
  • the two or more overlapping screening decks comprise a rotary drum screen and a disc screen.
  • the disc screen is wholly, substantially or partly located within the rotary drum screen.
  • ⁇ disc screen' is used herein to include screens comprising a series of spaced rotating drums or rollers or shafts, arranged in a generally linear direction, with defined openings thereinbetween to provide the screening.
  • a disc screen may be arranged to angle or incline (relative to a ground surface), or to have one or more differently angled or inclined portions.
  • One disc screen comprises a series of shafts, optionally with a rough or roughened surface, with defined openings or spacings thereinbetween.
  • Various other disc or star screens are known in the art, typically having a series of shafts on which rotating star or disc type wheels or other shapes are mounted. The spacing between the shafts and the wheels determines the respective openings in the screen. Separation is achieved by rotating the shafts simultaneously in the same direction to agitate and move material across the top of the shafts, discs or wheels, and so along the screen's surface. Those items, parts or particles of the material that are smaller than the openings fall through the openings, while those parts, etc. greater than the apertures continue to move along the screening surface until it exits the screen.
  • Disc screens are particularly suited for screening damp and bulk materials, and are particularly useful for screening biomass as they provide good agitation, which is necessary for separating the particles that tend to knit together.
  • a disc screen comprises a series of discs mounted on driven shafts.
  • the disc could have a shape selected from the group comprising: a polygon, circular, egg, ovoid or a star shape.
  • the disc screen comprises two or more disc screens in series, extending at least partially along the length of the rotary drum screen.
  • a disc screen is mounted on a disc frame, and the disc frame securable to another screen.
  • Rotary drum screens are known in the art, and generally comprise a rotating mechanical screen able to separate a variety of materials into different particle sizes.
  • the screen has a perforated cylindrical drum with various aperture sizes, rotated on or by a frame, and with a feed or input end, and a discharge or output end. Separation is achieved by rotating the drum to agitate and move the material along the drum's screening surface.
  • a rotary drum screen comprises a cylindrical drum, rotated on or by a frame, optionally at least partly in an outer housing.
  • a disc frame may be secured to each end of the frame or housing, and extend through the drum.
  • a disc frame includes a disc drive mechanism to drive the shafts and discs.
  • the mechanism is typically a series of drive chains and cogs, able to transfer power from a motor or the like on the apparatus to the relevant shafts to drive all the discs.
  • Such mechanisms are known in the art, and can be protected by the disc frame in use.
  • the disc screen may extend beyond one or both ends of the rotary drum screen, or start within one or both ends of the rotary drum screen, or a combination of same.
  • a disc screen has a feed end located within the feed end of a rotary drum screen.
  • the disc screen has a discharge end beyond the discharge end of a rotary drum screen.
  • the a frame provides side walls to the disc screen, to retain material on the disc screen that is not sized to pass through its apertures until reaching the discharge end of the disc screen.
  • a disc screen may have any suitable configuration relative to the rotary drum screen.
  • a rotary drum screen has a longitudinal centre line along its drum length
  • a disc screen may wholly or substantially be positioned in line with such longitudinal centre line, optionally above or below the longitudinal centre line, and optionally being wholly, substantially or partly inclined relative to the longitudinal centre line.
  • the material that passes through the openings in the first screen falls by gravity into a second screen below or surrounding the first screen.
  • Those items or parts or particles of the mixed material smaller than the apertures of the second screen pass through the screen to provide a second graded stream, which can be termed an ⁇ undersized stream'.
  • Those particles, etc. of the mixed material bigger than the apertures in the second stream (but smaller than the apertures in the first screen), which can be termed a ⁇ midsized stream' continue to move along the second screening surface until they exit the screen at the discharge end as a third graded stream.
  • the apertures in the second screen can vary in sizes and shape.
  • Apparatus containing drum screens commonly referred to as 'trommels', are known in the art in the pre-treatment of mixed commercial and municipal wastes; as well as for screening materials such as soil, biomass, ores, rock, sand, and aggregates.
  • the multi-deck screening part of the present invention can be provided as an integrated rotary or trommel screen or unit, and a disc screen unit or assembly.
  • the present invention also provides a method of switching the discharge of a mixed material graded into three graded streams, comprising at least the steps of:
  • the invention can also be described as having an infeed and a discharge; with the infeed describing the input of material to be processed; with the infeed describing the screen end adjacent to the feeder; with the discharge describing the material exiting the screen for collection and transfer away from the apparatus by the discharge conveyors.
  • the mixed material to be screened by the present invention may comprise any mixture, including materials from quarries, building sites, waste processing facilities and composting facilities, including but not limited to feed materials that contain high volumes of damp, bulky and/or non-uniform constituents such as biomass, plastic, textiles, newspaper, and cardboard.
  • This includes waste materials such as, construction and industrial waste (C&I), constructions and demolition waste (C&D), biomass, and Municipal solid waste (MSW).
  • the apparatus is for screening a mixed material into more three graded streams, by additional processing or screening or separation, prior to conveyance away from the apparatus.
  • the apparatus further comprises a feed hopper for the mixed material, further optionally an integral feeder hopper, next to or otherwise near the feed end of one screen of the multi-decks.
  • discharge' is used herein to describe the material provided by the apparatus as a graded stream, typically for subsequent collection and stockpiling for further use or processing.
  • FIG. 1 is a perspective view of an example of a mobile multi-deck screening apparatus 30 for screening a mixed material into three graded streams, the apparatus comprising two or more overlapping screening decks 2 and at least three discharge conveyors,6, 7, 8, wherein one discharge conveyor is a switchable conveyor 8 selectively switchable between an active state to an inactive state.
  • FIG. 2 is a sectional view of the apparatus 30 of FIG. 1 .
  • the apparatus 30 comprises of a feeder 1; overlapping screening decks 2 comprising two decks, an upper deck 3 being a disc screen, and lower deck 4 formed by a trommel or drum that extends wholly or substantially around the upper deck 3, and which rotates in a manner known in the art; a collection conveyor 16, positioned directly underneath the bottom of the lower deck 4; an undersize discharge conveyor 6; a midsize discharge conveyor 7 (or two-in-one discharge conveyor 17 as discussed hereinafter); and an oversize conveyor 8 as a switchable discharge conveyor.
  • FIG. 3 illustrates a material flow direction 9 in a three-way-split configuration.
  • feed material 10 enters the overlapping screening decks 2 to an upper deck 3 via the feeder 1, typically having a feed conveyor 1a.
  • the feeder 1a typically having a feed conveyor 1a.
  • the oversized particles 13 exit the upper screen deck 3 at a discharge end 12 towards a first collection station 32, optionally being a tray or bay or even a hopper, from which the oversize conveyor 8 collects and discharges the oversized particles 13 for further processing or stockpiling.
  • the lower screening deck 4 separates the undersized particles 14 from the midsized particles 15; here, the undersized particles 14 pass through the lower screen deck 4 apertures and onto the internal collection conveyor 16 below as a second collection station.
  • the collection conveyor 16 transfers the undersized particles 14 to the undersize conveyor 6, for subsequent discharge.
  • the midsize particles 15 exit the screens 2 at a discharge end to a third collection station 34, where the midsize conveyor 7 collects and discharges the midsized particles 15.
  • FIG. 4 illustrates the material flow 9 in a two-way-split configuration, i.e without the involvement or use of the oversize conveyor 8.
  • the feed material 10 enters the screen decks 2 via the feeder 1 in the same way as FIG 3 .
  • midsized and undersized particles 11 pass through the screen's apertures and onto the screening deck below 4.
  • the lower screening deck 4 separates the undersize 14 particles from the midsized particles 15; here, the undersize particles 14 pass through the lower screen deck 4 apertures and onto the collection conveyor 16 below.
  • the collection conveyor 16 transfers the undersized particles 14 to the undersize discharge conveyor 6, which is subsequently discharged.
  • the midsized particles 15 exit the screen at the discharge end.
  • the oversize particles 13 exit the upper screen 3 at the same discharge end 12. But the apparatus 30 diverts the flow 19 of oversized particles 13 towards the stream-collection station 34 of the midsize conveyor 7 for re-combining with the midsized particles 15. This can be achieved by repositioning the oversized conveyor 8 (not shown in FIG 4 ), as illustrated in FIG.s 5-7 , allowing the apparatus 30 to change between a two or three-way split configuration, as illustrated in FIGS. 3 and 4 .
  • the oversized conveyor 8 is thus a switchable discharge conveyor 8.
  • the midsize conveyor 7 becomes a two-in-one discharge conveyor 17 able to collect and discharge both the oversized 13 and midsized 15 particles as one single fraction 18.
  • FIGS. 5, 6 and 7 illustrate three different types of movement that will allow the oversize conveyor 8 and stream-collection station 32 to be repositioned away from the stream of oversize particles 19.
  • FIG. 5 illustrates the movement in a diagonal direction 21.
  • FIG. 6 illustrates the movement in a vertical direction 22.
  • FIG. 8 illustrates the movement in a horizontal 23 direction.
  • the oversize conveyor 8 and stream-collection station 32 are positioned directly next to the discharge end 12 of the upper screen 3, allowing the oversize conveyor 8 to collect and discharge the oversize particles 13 as a separate fraction, as illustrated in FIG. 3 .
  • the oversize conveyor 8 and stream-collection station 32 are positioned away from the discharge end 12 of the upper screen 3, and away from the flow of material 19, as illustrated in FIGS. 5, 6 and 7 .
  • the oversized particles 13 divert towards 19 the midsize conveyor 7, effectively making the oversize conveyor 8 inactive.
  • the midsize conveyor 7 is thus repurposed, as in, the purpose of the midsize conveyor 7 is now to collect and discharges the oversize 13 and midsize 15 particles together as one distinct fraction 18.
  • the midsize conveyor 7 is re-designated, and is referred to as the two-in-one conveyor 17.
  • the present invention provides an integral and mobile apparatus capable of operating either as a two-way-split or as a three-way-split for three different grade streams of a mixed feed material.

Landscapes

  • Combined Means For Separation Of Solids (AREA)

Claims (12)

  1. Un appareil de tamisage mobile à planchers multiples (30) pour tamiser un matériau mélangé en trois flux calibrés, l'appareil comprenant deux planchers de tamisage en chevauchement (2) ou plus et au moins trois transporteurs d'évacuation (6, 7, 8), un transporteur d'évacuation (8) étant un transporteur pouvant commuter pouvant sélectivement commuter entre un état actif, de telle sorte que chaque transporteur d'évacuation évacue un flux calibré, et un état inactif, de telle sorte qu'un transporteur d'évacuation évacue deux flux calibrés, et le transporteur d'évacuation pouvant commuter (8) ayant une station de collecte de flux (32) pour le transporteur d'évacuation pouvant commuter, caractérisé en ce que la station de collecte de flux (32) est placé, dans son état actif, au-dessus d'un autre transporteur d'évacuation (7), et en ce que la station de collecte de flux (32) et le transporteur d'évacuation pouvant commuter (8) peuvent se déplacer ensemble entre une position active de collecte de flux et une position inactive sans collecte.
  2. Appareil tel que revendiqué dans la revendication 1 ayant un châssis principal pour soutenir les deux planchers de tamisage en chevauchement (2) ou plus et les au moins trois transporteurs d'évacuation (6, 7, 8), et un châssis mobile à chenilles.
  3. Appareil tel que revendiqué dans n'importe laquelle des revendications précédentes comprenant en outre un ou plusieurs transporteurs internes pour transporter un flux calibré jusqu'à un transporteur d'évacuation.
  4. Appareil tel que revendiqué dans n'importe laquelle des revendications précédentes comprenant
    - un premier transporteur d'évacuation (8) pour collecter et évacuer une fraction de taille relativement très grande du matériau mélangé,
    - un deuxième transporteur d'évacuation (7) pour collecter et évacuer une fraction de taille relativement moyenne du matériau mélangé,
    - un premier transporteur interne (16) pour collecter une fraction de taille relativement réduite du matériau mélangé, et
    - un troisième transporteur d'évacuation (6) pour évacuer la fraction de petite taille collectée par le transporteur interne.
  5. Appareil tel que revendiqué dans la revendication 1 dans lequel la station de collecte de flux (32) n'est pas placée dans son état inactif au-dessus d'un autre transporteur d'évacuation (7).
  6. Appareil tel que revendiqué dans la revendication 1 dans lequel la station de collecte de flux (32) et le transporteur d'évacuation pouvant commuter (8) peuvent être déplacés par rapport à une surface de sol dans un sens par rapport à l'appareil (30) comprenant un ou plusieurs sens du groupe comprenant : horizontal, vertical, latéral, ou une combinaison de ceux-ci
  7. Appareil tel que revendiqué dans n'importe laquelle des revendications précédentes dans lequel le transporteur d'évacuation pouvant commuter (8) est soutenu sur un cadre pouvant se déplacer par rapport à un cadre soutenant les deux planchers de tamisage en chevauchement (2) ou plus.
  8. Appareil tel que revendiqué dans n'importe laquelle des revendications précédentes dans lequel le transporteur d'évacuation pouvant commuter (8) est soutenu sur un cadre pouvant se déplacer par rapport à un cadre soutenant un autre transporteur d'évacuation.
  9. Appareil tel que revendiqué dans n'importe laquelle des revendications précédentes dans lequel les deux planchers de tamisage en chevauchement (2) ou plus ont le même sens d'écoulement de matériau d'une extrémité de trémie d'alimentation à une extrémité d'évacuation par tamisage, et dans lequel une extrémité de chacun des trois transporteurs d'évacuation calibrés (6, 7, 8) est placée au niveau ou à proximité de l'extrémité d'évacuation par tamisage.
  10. Appareil tel que revendiqué dans n'importe laquelle des revendications précédentes dans lequel les deux planchers de tamisage en chevauchement (2) ou plus comprennent un tamis à tambour rotatif et un tamis à disques.
  11. Appareil tel que revendiqué dans la revendication 10 dans lequel le tamis à disques est placé entièrement, substantiellement ou partiellement au sein du tamis à tambour rotatif.
  12. Un procédé de commutation de l'évacuation d'un matériau mélangé calibré en trois flux calibrés, comprenant au moins les étapes consistant à :
    fournir un appareil de tamisage mobile à planchers multiples (30) tel que revendiqué dans n'importe laquelle des revendications précédentes ;
    commuter sélectivement le transporteur pouvant commuter entre l'état actif, de telle sorte que chaque transporteur d'évacuation peut évacuer un flux calibré, et un état inactif, de telle sorte qu'un transporteur d'évacuation peut évacuer deux flux calibrés.
EP21162486.1A 2021-03-15 2021-03-15 Appareil d'écran avec multi-décharge Active EP4059622B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21162486.1A EP4059622B1 (fr) 2021-03-15 2021-03-15 Appareil d'écran avec multi-décharge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21162486.1A EP4059622B1 (fr) 2021-03-15 2021-03-15 Appareil d'écran avec multi-décharge

Publications (2)

Publication Number Publication Date
EP4059622A1 EP4059622A1 (fr) 2022-09-21
EP4059622B1 true EP4059622B1 (fr) 2023-07-19

Family

ID=74874660

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21162486.1A Active EP4059622B1 (fr) 2021-03-15 2021-03-15 Appareil d'écran avec multi-décharge

Country Status (1)

Country Link
EP (1) EP4059622B1 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5361909A (en) * 1993-03-31 1994-11-08 Gemmer Bradley K Waste aggregate mass density separator
GB2309923B (en) * 1996-02-07 2000-05-10 Erin Intellectual Property Lim A mobile screen
AT4116U1 (de) * 2000-03-16 2001-02-26 Othmar Ing Hajek Mobile anlage zur zerkleinerung von gestein
US8162245B2 (en) * 2006-06-22 2012-04-24 Terex Usa, Llc Mobile aggregate crushing system and method
EP2822707B1 (fr) * 2012-03-09 2022-06-22 AAA Screens Pty Ltd Appareil de criblage mobile
EP3482836B1 (fr) * 2017-11-13 2020-06-17 Sandvik Intellectual Property AB Ensemble de criblage et machine de traitement de matériau mobile
DE102019126778A1 (de) * 2019-10-04 2021-04-08 Kleemann Gmbh Gesteinsverarbeitungsanlage
FI129449B (en) * 2019-12-18 2022-02-28 Metso Minerals Inc Stack control for a multilayer screening device

Also Published As

Publication number Publication date
EP4059622A1 (fr) 2022-09-21

Similar Documents

Publication Publication Date Title
EP3061533B1 (fr) Ensemble de criblage à plusieurs étages
US6360894B1 (en) Double skin trommel
US6889846B2 (en) Hybrid screen
US5398815A (en) Landfill waste material separating method
JP2014155928A (ja) 揺動選別機
EP3251759B1 (fr) Ensemble de criblage à plusieurs étages
JPS61501687A (ja) ふるい装置
US9205459B2 (en) Vibrating screen deck deflector systems and methods
AU2018382236B2 (en) A vibrating screen
WO2016064850A1 (fr) Unité de traitement de charbon autonome
EP4059622B1 (fr) Appareil d'écran avec multi-décharge
GB2528257A (en) Apparatus for grading and blending aggregates
JPH1028938A (ja) 揺動選別機
US20220288640A1 (en) Screen apparatus with multi-discharge
KR100636654B1 (ko) 재생골재 선별장치
USRE35331E (en) Material separating apparatus
EP4059623B1 (fr) Appareil de criblage de combinaison
US11865582B2 (en) Combination screening apparatus
KR20040027828A (ko) 선별기
JP3606935B2 (ja) グリズリ型振動篩
KR100756341B1 (ko) 트롬멜장치
EP4272879A1 (fr) Appareil de criblage pour traitement de matériau
RU2379126C1 (ru) Револьверно-ротационный сортировочный узел
JP2003300019A (ja) 振動篩機とそれを備えた篩設備
JP3614494B2 (ja) 振動篩

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20221017

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20230102

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602021003523

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20230719

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1588921

Country of ref document: AT

Kind code of ref document: T

Effective date: 20230719

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230719

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231020

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231119

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230719

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230719

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231120

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231019

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230719

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230719

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231119

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230719

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231020

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230719

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230719

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230719

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230719

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230719

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230719

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230719

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230719

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230719

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230719

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230719

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240326

Year of fee payment: 4