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EP0168495B1 - Dispositif de tamisage - Google Patents

Dispositif de tamisage Download PDF

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Publication number
EP0168495B1
EP0168495B1 EP85901408A EP85901408A EP0168495B1 EP 0168495 B1 EP0168495 B1 EP 0168495B1 EP 85901408 A EP85901408 A EP 85901408A EP 85901408 A EP85901408 A EP 85901408A EP 0168495 B1 EP0168495 B1 EP 0168495B1
Authority
EP
European Patent Office
Prior art keywords
sieve
bars
bar
section
zone
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.)
Expired
Application number
EP85901408A
Other languages
German (de)
English (en)
Other versions
EP0168495A1 (fr
Inventor
Wolfgang Stehle
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.)
Maschinenfabrik Bezner GmbH and Co KG
Original Assignee
Maschinenfabrik Bezner GmbH and Co KG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=37808031&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0168495(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Maschinenfabrik Bezner GmbH and Co KG filed Critical Maschinenfabrik Bezner GmbH and Co KG
Priority to AT85901408T priority Critical patent/ATE30217T1/de
Publication of EP0168495A1 publication Critical patent/EP0168495A1/fr
Application granted granted Critical
Publication of EP0168495B1 publication Critical patent/EP0168495B1/fr
Expired legal-status Critical Current

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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
    • B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • B07B1/38—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens oscillating in a circular arc in their own plane; Plansifters
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S209/00—Classifying, separating, and assorting solids
    • Y10S209/93—Municipal solid waste sorting

Definitions

  • the invention relates to a feed device and screening device for the treatment of valuable materials, domestic waste, commercial waste, bulky waste, dry waste, wet waste, compost and / or problematic and hazardous substances as a ballast to a sorting system, with floating in the direction of transport and open to the end, inclined and rods which can be set into an oscillating movement and which form at least two rod grate sieves arranged one behind the other in steps.
  • EPC relates to a sorting system for sorting valuable materials, in particular dry waste such as glass, cardboard, paper, plastics or the like.
  • the sorting system consists of several manual and mechanical ones Sorting workstations or stations in which the valuable materials are separated depending on their nature and separated into components.
  • the dry waste which is heavily clumped and entangled with one another, cannot be thrown directly onto a conveyor belt and thus onto a sorting system. Rather, it appears to be indispensable to supply the dry waste to the system via a feed device which loosens the clumped and devoured waste.
  • a feed device which loosens the clumped and devoured waste.
  • the non-uniformly generated dry waste cannot be distributed or loosened to the required extent, since the screen surfaces tend to clog.
  • the known devices have the disadvantage that an effective pretreatment of a heavily clumped and intrinsically entangled dry waste for the task on a sorting device can not be accomplished or only insufficiently.
  • the invention has for its object to provide a device which is used in particular as a feed device with a distributor function and a screening device for the treatment of valuable materials from domestic waste, commercial waste, bulky waste, dry waste and / or problematic and hazardous substances.
  • the object of the invention is in particular to loosen or distribute the heavily clumped and entangled dry waste coming from refuse collection vehicles in such a way that it can be used in subsequent treatment stages. Small parts are to be screened out.
  • the oscillating movement is carried out as a circular oscillating movement with a large amplitude, caused by an eccentric drive, since by this, as well as the natural oscillating movement of the rods, the distribution or loosening effect of the invention solidified dry waste takes place.
  • This oscillating movement is promoted by the rubber oscillating elements according to the invention in cooperation with the eccentric drive. It is important that both the bar grate screen and the pre-distributor section are set into a circular oscillating motion with a large amplitude.
  • the device according to the invention creates a feeding and screening device for treating valuable materials, as can be used, for example, in connection with the subject matter of patent application EP-A-0 123 825.
  • the dry garbage delivered in the container vehicles with a wide variety of compositions, can first be placed on the device according to the invention.
  • the combination of the features according to the invention results in a sieving effect of small parts and a cleaning effect of the bar grate sieve, which is better than in the case of known drum sieves, in which there is a permanent shifting of the sieved material.
  • Drum sieves are unsuitable for the task at hand because there is an increased risk of clogging due to the constant layering of the material to be sieved, and because the high drop height, for example, shatters glass.
  • the advantage of the flat screen with a large receiving area, ie a large screen area is maintained. Due to the inventive design of the device By means of a vibrating pre-distribution section, the parts come to rest flat before they reach the bar grate. As a result, the parts do not fall directly onto the first bar grate, so that they cannot clog or the parts cannot fall through the screen openings with their narrow sides. Accordingly, only essentially small parts fall through the grate.
  • Optimal self-cleaning of the device is achieved by the bars tapering in the transport direction and clamped on one side. This applies in particular to materials without internal strength, such as stockings, cords, fabrics, foils, etc., which normally clog the screens slightly. Such materials cannot easily slide through the bar grate screens according to the invention, but are simply pushed off at the free end of the screen bars.
  • the discharge step and the associated turning process from an upper bar grate screen to a further pre-distributor surface of a further bar grate screen underneath are also decisive, whereby an effect similar to that of the drum screen can be achieved without the disadvantages mentioned above.
  • several such discharge stations can be provided to circulate the material to be processed, i. H. the screening device is constructed in a step-like manner.
  • the impact process is carried out in a dampened manner so that no damage to the valuable materials occurs.
  • rods with a prismatic, in particular trapezoidal cross-section which have a free-extending grate cross-section which widens downwards, the narrow prism side of the trapezoid being arranged at the bottom.
  • This allows the pieces to be screened to slide more easily through the grate d. H. the tendency to constipation is reduced.
  • an extraordinarily good screening effect is achieved. This is supported by the additional oscillating movement of the device and the resulting natural vibrations of the rods.
  • a pre-distributor section is connected upstream of the lower bar grate sieve, which is also set into an oscillating movement.
  • the material to be screened can be distributed evenly in order to reach the subsequent bar grate screen.
  • the distribution function of the feed device is improved.
  • the bars are formed with a profile cross section, whereby the free grate cross section also widens downward. This also allows the pieces to be screened to slide more easily through the grate, i.e. H. the tendency to constipation is reduced.
  • the bars in their lower region have projections which protrude into the free grate cross-section, on which flat material is supported and does not fall through the sieve (claim 8).
  • the device 10 shown in the figures consists of a screen box 11 in which an upper bar grate screen 12 and a lower bar grate screen 13 are arranged.
  • the complete sieve box with bar grate screens has an inclination angle of ⁇ ⁇ 3 to 4 °, so that the bar grate screens are slightly inclined downwards in the transport direction.
  • the inlet area 14 of the device is followed by a pre-distributor section 15 on which the material to be screened can be distributed over the entire width of the device 10 and laid flat.
  • the inlet area 14 and the pre-distribution section 15 take up about 1/3 of the total length of the device 10.
  • the pre-distribution section 15 follows the upper one Rod grate sieve 12.
  • the rod grate sieve 12 is formed by individual rods 16 arranged parallel to one another, which are firmly clamped in their area 17 facing the pre-distributor section 15.
  • the other end 18 lying in the transport direction, on the other hand, is free-floating, that is to say open, without attachment.
  • the individual rods 16 are prismatic and taper towards the front end 18, the tapering taking place both in a top view and in a side view.
  • the prismatic cross-section of the rods 16 is designed such that the free grate cross-section widens downward, ie the narrow prism side of the rods is arranged at the bottom (shape of a trapezoid upside down).
  • the material to be screened can pass through the grate more easily and cannot become jammed.
  • the cleaning effect is therefore significantly increased.
  • the natural vibration behavior of the rods is positively influenced by the decreasing cross section, so that the cleaning effect is increased.
  • a T-shaped profile is also suitable.
  • projections 28 in the form of, for example, a continuous strip 28 are provided in the lower region 26 of the rods 16, which protrude into the free grate cross section 27.
  • a sheet 29 sliding into the screen gap 27 is blocked from slipping so that it remains on the screen again due to the shaking movement and does not slip (see FIG. 3).
  • the shrinking cross-section has a positive influence on the natural vibration behavior of the rods, so that the cleaning effect is further increased.
  • the last quarter of the upper rod grate sieve 12 overlaps with the first quarter of the lower rod grate sieve 13.
  • Decisive for the good distribution effect and an optimal cleaning effect or sieve effect is u. a. the damped falling process from the end region of the upper bar grate screen 12 onto the distributor section in front of the lower bar grate screen 13.
  • the material to be screened is circulated like a drum screen.
  • the lower bar grate sieve 13 is basically constructed in the same way as the upper bar grate sieve 12.
  • the conical design and the free-floating end of the rods, at the ends of which the coarse material falls into a coarse material outlet 20, are decisive.
  • the coarse material remaining on the grate bars 12, 13 is fed to a coarse material outlet 20 at the end of the device 10, from where it is used for further processing, e.g. B. can be fed in the sorting system.
  • the fine material sifted out through the rod grate sieves 12, 13 is discharged via the outlet 25 and treated separately or is sent to a landfill.
  • Fig. 1 the drive mechanism of the device is also shown.
  • the entire screen frame 11 is arranged on maintenance-free rubber vibrating elements 21.
  • Such elements are advantageous for the principle according to the invention, since the most varied vibrations can be carried out by means of an eccentric drive 22 via a motor 23.
  • the optimal size of the oscillating movement and the oscillating frequency is selected in a manner known per se, depending on the material to be screened.
  • a baffle plate 24 is provided in the region of the discharge section from the upper bar grate sieve 12 to the lower bar grate sieve 13, which prevents the falling material from getting stuck in the bar grate sieve underneath or falling through with the narrow side.
  • the bars in a zigzag shape improves the undesired slipping behavior of paper-like material or the like.
  • the bars are each zigzag-shaped at an angle of, for example, 5 to 10 ° to the transport direction angled, for example to a length of 20 cm.

Landscapes

  • Combined Means For Separation Of Solids (AREA)
  • Processing Of Solid Wastes (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Abstract

Le dispositif de tamisage sert d'alimentateur et de séparateur de matériaux difficilement séparables, tels que les ordures ménagères, les déchets industriels, les déchets encombrants ou secs. Dans le but d'avoir un effet de nettoyage et de répartition optimal, on prévoit deux tamis de grillage (12, 13) superposés, constitués de barres se chevauchant, ayant une section conique et qui sont libres à leurs extrémités. L'effet de nettoyage du dispositif est amélioré par le décalage à gradins des tamis (12, 13) et par l'effet de circulation qui s'ensuit. Le mouvement d'oscillation est obtenu par des éléments oscillants en caoutchouc et par un entraînement excentrique.

Claims (10)

1. Dispositif de déchargement et dispositif de criblage pour le traitement de produits valorisables, ordures ménagères, ordures industrielles, ordures de barrage, ordures sèches, ordures humides, compost et/ou produits à problèmes et à risques, pour servir de dispositif de présélection à une installation de tri, comportant des barreaux qui flottent librement dans le sens du transport, sont ouverts à l'extrémité, sont inclinés, peuvent prendre un mouvement de vibration et forment au moins deux cribles à barreaux disposés, en étages, l'un au-dessus de l'autre, caractérisé en ce qu'un cadre de crible (11) porté, avec un angle d'inclinaison a de 3 à 4°, sur des éléments de caoutchouc pour vibrations (21), présente une zone de prérépartition (15) avec une zone de chargement (14), avec un crible à barreaux (12, 13) qui s'y raccorde à la suite, étant précisé que la zone de prérépartition (15) avec la zone de chargement (14) prend environ un tiers de la longueur totale du dispositif de criblage (10); en ce que les cribles à barreaux (12, 13) présentent des barreaux (16) qui vont en rétrécissant dans le sens du transport; et en ce qu'il est prévu pour le cadre (11) du crible un mécanisme à excentrique (22, 23) présentant un grand diamètre de vibration circulaire d'environ 100 mm.
2. Dispositif selon la revendication 1, caractérisé en ce que les barreaux (16) présentent une section prismatique, avec une section libre de la grille qui va en s'élargissant vers le bas, en particulier une section trapézoïdale avec une base inférieure courte.
3. Dispositif selon la revendication 1, caractérisé en ce qu'une zone de prérépartition (19) pour le crible à barreaux inférieur (13) est disposée en dessous du crible à barreaux supérieur (12).
4. Dispositif selon la revendication 1, 2 ou 3, caractérisé en ce que le rapport entre la largeur d'appui du barreau (16) du crible et la longueur en porte-à-faux se situe sur la plage 1 : 50 à 1 : 100.
5. Dispositif selon la revendication 1 ou 3, caractérisé en ce qu'il est prévu une plaque de choc (24) dans la zone de chute depuis le crible à barreaux supérieur (12) pour venir sur le crible à barreaux inférieur (13).
6. Dispositif selon la revendication 2, caractérisé en ce que le rétrécissement des barreaux (16) se fait aussi bien en vue de dessus qu'en vue de côté.
7. Dispositif selon la revendication 3, caractérisé en ce que la zone de prérépartition (19) pour le crible à barreaux inférieur (13) s'étend le long de la zone d'extrémité (18) du crible à barreaux supérieur (12).
8. Dispositif selon la revendication 2, caractérisé en ce qu'il est prévu des barreaux (16) à section (25) trapézoïdale, rectangulaire, ou avec profil en T, qui présentent dans leur zone inférieure (26) des saillies (28) qui pénètrent dans la section libre de la grille (27).
9. Dispositif selon la revendication 1, caractérisé en ce que les barreaux (16) présentent la section d'un profil en T.
10. Dispositif selon la revendication 1, caractérisé en ce que les barreaux (16) vont en zigzag dans le sens du transport.
EP85901408A 1984-02-29 1985-02-23 Dispositif de tamisage Expired EP0168495B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85901408T ATE30217T1 (de) 1984-02-29 1985-02-23 Siebvorrichtung.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3407460A DE3407460C2 (de) 1984-02-29 1984-02-29 Aufgabevorrichtung und Siebvorrichtung zur Behandlung von Wertstoffen
DE3407460 1984-02-29
DE8406281U DE8406281U1 (de) 1984-02-29 1984-02-29 Siebvorrichtung

Publications (2)

Publication Number Publication Date
EP0168495A1 EP0168495A1 (fr) 1986-01-22
EP0168495B1 true EP0168495B1 (fr) 1987-10-14

Family

ID=37808031

Family Applications (2)

Application Number Title Priority Date Filing Date
EP85102037A Pending EP0154876A1 (fr) 1984-02-29 1985-02-23 Dispositif de tamisage
EP85901408A Expired EP0168495B1 (fr) 1984-02-29 1985-02-23 Dispositif de tamisage

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP85102037A Pending EP0154876A1 (fr) 1984-02-29 1985-02-23 Dispositif de tamisage

Country Status (7)

Country Link
US (1) US4693379A (fr)
EP (2) EP0154876A1 (fr)
JP (1) JPS61501687A (fr)
CA (1) CA1275071A (fr)
DE (2) DE8406281U1 (fr)
NO (1) NO854172L (fr)
WO (1) WO1985003889A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4416457A1 (de) * 1993-05-11 1994-11-17 Bezner Maschf Sortieranlage

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AT385503B (de) * 1986-10-14 1988-04-11 Wageneder Sbm Gmbh Fahrrbare einrichtung zur sortierung von kompostbestandteilen
DE3903325A1 (de) * 1989-02-04 1990-08-09 Bezner Maschf Verfahren zum rueckgewinnen von wertstoffen, insbesondere aus baustellenabfaellen und anlage zum durchfuehren des verfahrens
CA2007825C (fr) * 1989-03-01 1999-04-20 Raymond W. Sherman Crible
US5150307A (en) * 1990-10-15 1992-09-22 Automation Industrial Control, Inc. Computer-controlled system and method for sorting plastic items
US5322170A (en) * 1990-12-11 1994-06-21 The Read Corporation Waste material separating apparatus and method
US5219078A (en) * 1990-12-11 1993-06-15 The Read Corporation Material separating and sizing apparatus with vibrating rods and method
WO1992010312A1 (fr) * 1990-12-11 1992-06-25 The Read Corporation Appareil de triage de matieres a surfaces vibrantes a tiges
US5234109A (en) * 1991-02-01 1993-08-10 Pederson Dennis A Apparatus and method for separating recyclable waste
US5116486A (en) * 1991-02-01 1992-05-26 Pederson Dennis A Apparatus and method for separating recyclable waste
US5115987A (en) * 1991-02-19 1992-05-26 Mithal Ashish K Method for separation of beverage bottle components
DE4334714C2 (de) * 1993-10-12 1998-02-19 Trienekens Entsorgung Gmbh Trockenbatteriesortieranlage und Sortierverfahren unter Verwendung der Sortieranlage
BE1007656A5 (nl) * 1993-10-13 1995-09-05 Bruynooghe Constructie Nv Inrichting voor het behandelen van gewassen.
JPH07265795A (ja) * 1994-03-30 1995-10-17 Shigeharu Endo 採取した砂利・砂類に混入している玉石の分離装置
US5829597A (en) * 1994-09-28 1998-11-03 Beloit Technologies, Inc. Air density system with air recirculation and gyrating bar feeder
AUPN550295A0 (en) * 1995-09-15 1995-10-12 Act Electricity & Water Filter
US6283300B1 (en) 1998-08-21 2001-09-04 Joseph B. Bielagus Feed distribution for low velocity air density separation
US7794783B2 (en) * 2005-02-07 2010-09-14 Kennametal Inc. Articles having wear-resistant coatings and process for making the same
US20080273955A1 (en) * 2007-05-02 2008-11-06 International Truck Intellectual Property Company, Llc. Refuse collection device and disposal method for public transportation vehicles
US20110198269A1 (en) * 2010-02-16 2011-08-18 Grant Young Vibratory screen device
US8708154B1 (en) 2011-12-23 2014-04-29 Tim Holmberg Adjustable spring grizzly bar material separator
CN104209270B (zh) * 2013-05-31 2016-08-10 泰科电子(上海)有限公司 零件分选机构及分选方法、零件供应系统
JP6569660B2 (ja) * 2016-12-27 2019-09-04 Ｊｆｅスチール株式会社 グリズリー装置
CN106623372A (zh) * 2017-01-22 2017-05-10 扬州大学 一种生活垃圾自动化多级分选装置
CN108636753A (zh) * 2018-04-04 2018-10-12 江苏天晟环境科技有限公司 一种陈腐生活垃圾预筛分装置及方法
CN109809104B (zh) * 2019-03-27 2021-02-26 郑州煤电股份有限公司超化煤矿 一种运输机转载承接胶带防护装置
CN120228244B (zh) * 2025-05-29 2025-09-23 常州萨伟利铸造技术有限公司 一种水玻璃砂再生干燥设备

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JPS5630468A (en) * 1979-08-19 1981-03-27 Kazuo Komata Coloring liquid for "tatami"(straw matting)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4416457A1 (de) * 1993-05-11 1994-11-17 Bezner Maschf Sortieranlage

Also Published As

Publication number Publication date
US4693379A (en) 1987-09-15
CA1275071A (fr) 1990-10-09
DE3407460C2 (de) 1986-10-30
WO1985003889A1 (fr) 1985-09-12
NO854172L (no) 1985-10-21
EP0168495A1 (fr) 1986-01-22
DE3407460A1 (de) 1985-08-29
EP0154876A1 (fr) 1985-09-18
JPS61501687A (ja) 1986-08-14
DE8406281U1 (de) 1985-07-25

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