WO2009004278A2 - Appareil pour trier des déchets - Google Patents

Appareil pour trier des déchets Download PDF

Info

Publication number
WO2009004278A2
WO2009004278A2 PCT/GB2008/001862 GB2008001862W WO2009004278A2 WO 2009004278 A2 WO2009004278 A2 WO 2009004278A2 GB 2008001862 W GB2008001862 W GB 2008001862W WO 2009004278 A2 WO2009004278 A2 WO 2009004278A2
Authority
WO
WIPO (PCT)
Prior art keywords
screen
housing
inlet end
support means
tines
Prior art date
Application number
PCT/GB2008/001862
Other languages
English (en)
Other versions
WO2009004278A3 (fr
Inventor
Roger White
Original Assignee
Rcw Investments 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 Rcw Investments Ltd filed Critical Rcw Investments Ltd
Publication of WO2009004278A2 publication Critical patent/WO2009004278A2/fr
Publication of WO2009004278A3 publication Critical patent/WO2009004278A3/fr

Links

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
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/12—Apparatus having only parallel elements
    • 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
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens

Definitions

  • the present invention relates to the sorting of waste materials, and more particularly to apparatus for classifying such materials.
  • the invention relates to the sorting of waste materials of the kind normally encountered in skips hired for domestic use.
  • waste materials often comprise a mixture of earth from gardens, brick and concrete rubble from small building works, wood, scrap metal and general household refuse including paper, cardboard, light plastics packaging and broken glass.
  • the nature of such skip waste is usually very different from that of household garbage which can be expected to be lighter in weight and to contain more wet vegetable and the like matter.
  • WO98/42455 describes a method and apparatus for classifying waste materials, using two sieve screens, means for vibrating the screens and air blower means for blowing air in the space between the screens .
  • the present applicant has devised an improved apparatus for sorting waste materials.
  • the improved apparatus may be used in isolation as a stand-alone device for preliminary classification purposes, or may be incorporated into the apparatus described in WO98/42455 as an additional waste sorting component or even as a first section of one of the screens.
  • apparatus for sorting mixed waste materials comprising: a housing configured to be vibrated to assist sorting; a screen having an inlet end for receiving waste materials and an outlet end for discharging at least some waste received at the inlet end, the screen being pivotally coupled adjacent the inlet end to a substantially horizontal axle mounted in the housing; and means for resiliently supporting the screen relative to the housing to encourage pivotal movement of the screen about the axle when the housing is vibrated, wherein the screen comprises a plurality of tines mounted at the inlet end and extending to the outlet end.
  • the tines are configured to allow waste materials below a predetermined size to pass through spaces between the tines. The remaining (larger) waste material is encouraged to travel along the tines from the inlet end to the outlet by agitating the housing.
  • the tines offer little or no resistance to such movement therealong.
  • the tines may be configured to slope downwardly from the inlet end to the outlet end (at least when the housing is at rest) to encourage movement of waste materials along the screen.
  • the resilient support means may be located away from the tines, for example to one lateral side of the screen.
  • the screen may comprise an arm which pivots in sympathy with the tines and which is configured to engage the resilient support means, the arm being positioned to avoid interference with movement of waste material along the tines.
  • the resilient support means may be located in between the inlet and outlet ends of the screen, perhaps half-way to three-quarters of the way along the screen from the inlet end. In this way, the free-ends of the tines may project beyond the resilient support means, helping to amplify physical movements of waste material at or near the outlet end when the housing is vibrated.
  • the tines may even be constructed from a tough, resilient material such as spring steel to further amplify such movements .
  • the resilient support means may comprise a resilient component ⁇ e.g. a gas spring) or a resilient member ⁇ e.g. a coil spring or an elastomeric spring) and a mount fixed to the housing for engaging the resilient component/member .
  • the resilient component/member may be coupled to the mount or to the screen.
  • the screen may be configured to separate from at least part of the resilient support means during periods of use. As heavy material approaches the outlet end, the free ends of the tines will increasingly deflect under the weight. Such deflection will increase the energy stored in the resilient support means. When the heavy material is discharged from the outlet end of the screen, the stored energy may be released suddenly, thrusting the free ends of the tines upwards with enough force to temporarily disengage at least part of the resilient support means. Such an action may be beneficial to waste material sorting as it will help to turn over waste material on the screen, bringing lighter material to the top and heavy materials to the bottom.
  • the apparatus may further comprise means for limiting or arresting upward movement of the tines.
  • Such means may comprise a stop fixed to the housing, or even a tether.
  • Such means may be configured to limit or arrest upward movement of the tines abruptly, further enhancing waste material sorting by helping to mix materials of different weights/densities.
  • the present invention may speed up the sorting of waste materials, particularly when the waste materials include the likes of cardboard which have a tendency to stick to or become entangled with the tines and occlude the spacings therebetween.
  • Figure 1 is a schematic side view of apparatus for sorting waste materials according to an embodiment of the invention.
  • Figure 3 is a partial, schematic perspective view of the apparatus of Figure 1.
  • an apparatus 10 for classifying waste materials for classifying waste materials, more particularly of the kind typically found in waste collection skips hired for domestic use, such waste materials typically comprising a mixture of garden earth, brick and concrete rubble, timber scrap metal and general household refuse including paper, light plastics packaging and broken glass.
  • the apparatus 10 comprises a housing 12 configured to be vibrated to assist sorting by means (not shown) known in the art.
  • the apparatus 10 also comprises at least one screen 14 having an inlet end 16 for receiving waste material (e.g. from hopper 18) and an outlet end 20 for discharging at least some waste originally receive at the inlet end 16 and conveyed along screen 14 in direction- A. The remaining waste passes through screen 14 in direction B and onto a conveyor.
  • the screen 14 is pivotally coupled adjacent inlet end 14 to a substantially horizontal axle 30 mounted in housing 12.
  • the apparatus 10 further comprises support means 40 including a coil spring 42 and mount 44 for resiliently supporting the screen 14 relative to the housing 12.
  • the screen 14 comprises a plurality of tines 50 mounted at the inlet end 16 and extending so that their free-ends 52 form the outlet end 20.
  • the resilient support means 40 is positioned to one lateral side of tines 50 so as not to interfere with waste movements.
  • the screen 14 includes an arm 60 which moves in sympathy with tines 50. At rest, the arm 60 is configured to rest on resilient support means 40. However, the screen 14 is free to pivot about axle axis XX, and arm 60 is able to separate from resilient support means 40 if there is sufficient upward force on tines 50. Such an upward force may be generated by a sudden release of stored energy in the resilient support means, created, for example by the removal or discharge of a large mass from outlet end 20. A tether (not shown) may be provided to suddenly arrest upward movement of the tines 50.
  • a second apparatus 14' may be positioned downstream of apparatus 14 to receive waste material discharged from outlet end 20. The second apparatus 14' operates in the same way as apparatus 14, but will have tines 50' with a closer spacing than tines 50.

Landscapes

  • Combined Means For Separation Of Solids (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

L'invention concerne un appareil (10) pour trier des déchets mélangés, l'appareil comprenant: un boîtier (12) configuré pour être vibré afin d'aider au tri, un tamis (14) ayant une extrémité d'entrée (16) pour recevoir des déchets et une extrémité de sortie (20) pour décharger au moins une partie des déchets reçus à l'extrémité d'entrée, le tamis (14) étant couplé de manière pivotante, à proximité immédiate de l'extrémité d'entrée, à un axe sensiblement horizontal (30) monté dans le boîtier (12); et des moyens (40) pour supporter de façon élastique le tamis (14) par rapport au boîtier (12) afin d'aider le mouvement de pivotement du tamis (14) autour de l'axe (30) lorsque le boîtier est amené à vibrer. Le tamis (14) comprend plusieurs dents (50) montées au niveau de l'extrémité d'entrée (10) et s'étendant vers l'extrémité de sortie (20).
PCT/GB2008/001862 2007-07-04 2008-05-30 Appareil pour trier des déchets WO2009004278A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0712933A GB0712933D0 (en) 2007-07-04 2007-07-04 Apparatus for sorting waste materials
GB0712933.1 2007-07-04

Publications (2)

Publication Number Publication Date
WO2009004278A2 true WO2009004278A2 (fr) 2009-01-08
WO2009004278A3 WO2009004278A3 (fr) 2009-02-26

Family

ID=38440351

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2008/001862 WO2009004278A2 (fr) 2007-07-04 2008-05-30 Appareil pour trier des déchets

Country Status (2)

Country Link
GB (1) GB0712933D0 (fr)
WO (1) WO2009004278A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017198980A1 (fr) 2016-05-17 2017-11-23 Rcw Investments Limited Tri de déchets
CN110656775A (zh) * 2019-09-15 2020-01-07 陈飞 一种cl专用现浇混凝土分离器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990004466A1 (fr) * 1988-10-25 1990-05-03 Extec Screens & Crushers Limited Appareil a tamiser des matieres particulaires
GB2247850A (en) * 1990-08-24 1992-03-18 Shattock Ltd A screen
US5322170A (en) * 1990-12-11 1994-06-21 The Read Corporation Waste material separating apparatus and method
FR2714315A1 (fr) * 1993-12-27 1995-06-30 Gen Dechets Recyclabl Centre Dispositif de tri dimensionnel de déchets.
EP1400288A2 (fr) * 2002-09-19 2004-03-24 HMH Engineering-Consulting Trading GmbH Dispositif pour séparer des particules fines et grosses

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990004466A1 (fr) * 1988-10-25 1990-05-03 Extec Screens & Crushers Limited Appareil a tamiser des matieres particulaires
GB2247850A (en) * 1990-08-24 1992-03-18 Shattock Ltd A screen
US5322170A (en) * 1990-12-11 1994-06-21 The Read Corporation Waste material separating apparatus and method
FR2714315A1 (fr) * 1993-12-27 1995-06-30 Gen Dechets Recyclabl Centre Dispositif de tri dimensionnel de déchets.
EP1400288A2 (fr) * 2002-09-19 2004-03-24 HMH Engineering-Consulting Trading GmbH Dispositif pour séparer des particules fines et grosses

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017198980A1 (fr) 2016-05-17 2017-11-23 Rcw Investments Limited Tri de déchets
US11000881B2 (en) 2016-05-17 2021-05-11 Rcw Investments Limited Sorting waste materials
EP3854489A1 (fr) 2016-05-17 2021-07-28 Turbo Screen International Limited Tri de déchets
AU2016407023B2 (en) * 2016-05-17 2023-03-16 Turbo Screen International Limited Sorting waste materials
CN110656775A (zh) * 2019-09-15 2020-01-07 陈飞 一种cl专用现浇混凝土分离器

Also Published As

Publication number Publication date
WO2009004278A3 (fr) 2009-02-26
GB0712933D0 (en) 2007-08-15

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