EP1400288B1 - Dispositif pour séparer des particules fines et grosses - Google Patents

Dispositif pour séparer des particules fines et grosses Download PDF

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Publication number
EP1400288B1
EP1400288B1 EP03450192A EP03450192A EP1400288B1 EP 1400288 B1 EP1400288 B1 EP 1400288B1 EP 03450192 A EP03450192 A EP 03450192A EP 03450192 A EP03450192 A EP 03450192A EP 1400288 B1 EP1400288 B1 EP 1400288B1
Authority
EP
European Patent Office
Prior art keywords
screen bars
frame
support
carrier
bars
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 - Lifetime
Application number
EP03450192A
Other languages
German (de)
English (en)
Other versions
EP1400288A3 (fr
EP1400288A2 (fr
Inventor
Gerald Ing. Hanisch
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.)
HMH Engineering Consulting Trading GmbH
Original Assignee
HMH Engineering Consulting Trading GmbH
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 HMH Engineering Consulting Trading GmbH filed Critical HMH Engineering Consulting Trading GmbH
Publication of EP1400288A2 publication Critical patent/EP1400288A2/fr
Publication of EP1400288A3 publication Critical patent/EP1400288A3/fr
Application granted granted Critical
Publication of EP1400288B1 publication Critical patent/EP1400288B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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

Definitions

  • the invention relates to a device for separating coarse grain and fine grain with a sieve of spaced juxtaposed, sloping in the conveying direction of the coarse grain screen bars and with a support for the attached at one end to the carrier through the screenings vibrating excitable screen bars, wherein the Carrier is arranged in a frame and the screen bars are arranged in at least two successive rows in the conveying direction of the coarse grain ( DE 1 161 823 B ).
  • the coarse grain is guided during the screening process in the direction of Siebstabl Kunststoffsachsen on the screen and the fine grain trickles transversely through the sieve.
  • the sieve bars are displaced from the sieve material into the vibrations required for a good sieving process only in those areas of the sieve in which a sufficient amount of sieve material is passed over the sieve, whereas the sieve bars of the other regions are hardly excited to vibrate and thus with such a device only a poor screening effect can be achieved.
  • the maximum screening effect is achieved only in the region of the carrier opposite ends of the screen bars due to the prevailing vibration amplitudes, but which can not be prevented because of the proximity to the coarse grain ejection that a not inconsiderable amount of fine grain is screened out with the coarse grain.
  • the invention is therefore an object of the invention to provide a device of the type described above, which is characterized by its good screening effect with low maintenance and manufacturing costs and by their small footprint.
  • the invention solves this problem by the fact that the rod-shaped support is mounted in a torsion spring around its transversely extending to the screen bars longitudinal axis in the frame.
  • the carrier is mounted together with the attached to the carrier at one end screen bars vibratory in the frame, the screen is vibrated when exposed to the screen with screenings over its entire width, so that always a good screening effect is achieved with the device according to the invention, because all straps attached to a carrier are excited to vibrate to almost the same extent.
  • the screening effect is further improved because the areas of greatest vibration amplitudes of the first screening row are far enough away from the coarse grain ejection.
  • either more or fewer sieve rows are to be provided.
  • the carrier may be mounted, for example via a torsion spring, torsion bar spring, plastic bearings od. Like. With respect to the frame.
  • the angle at which the individual screen bars are arranged in the frame, are to be optimized with respect to the flow rate, and it should always be sought after that with optimum screening effect as little fine grain as possible remains in the screened coarse grain.
  • the individual screen bars can be curved in the direction of their longitudinal axis and each act more or less vibratory on the carrier, whereby it is also possible to allow and adjust vibrations transverse to the conveying direction of the screenings.
  • the screen bars can either be welded directly to the carrier od. Like., But in the case of wear always brings the replacement of the entire carrier with it. Therefore, it is particularly advantageous if the screen bars embrace the carrier at least by 90 ° and the screen bars are held on the carrier by means of a profile which receives the screen bars between itself and the carrier.
  • the profile is screwed, for example, with the carrier and fixed due to its clamping effect the screen bars relative to the carrier, the screen bars then clearly in their position relative to the Determined carrier and if necessary also against the carrier can be kept vibratory.
  • the profile preferably has recesses into which the screen bars are inserted.
  • the device according to the invention can be mounted as an additional module in each treatment plant, wherein it is attached in particular to the discharge conveyor of this system.
  • the device may be arranged on its own on the discharge belt or else be arranged with its frame in the transfer region of two conveyor belts and be releasably connected to at least one of the conveyor belts.
  • the device according to the invention is characterized by its low weight and cost-effective design. Due to the low weight and the small size of the mobility of the base system is hardly limited and forms the device, for example with a conveyor belt a single transport unit. It is particularly advantageous if the carrier with the screen bars and the frame form a mountable on a tape head of a conveyor assembly, since a particularly compact and lightweight screening device is created.
  • the frame can be a transport frame listen.
  • a device for separating coarse grain and fine grain consists of three sieve rows 1 of spaced apart juxtaposed, sloping in the conveying direction 2 of the coarse grain sieve bars 3, which are fixed with one end to a support 4.
  • the rod-shaped carrier 4 are about their transverse to the screen bars 3 extending longitudinal axis 5 torsionally resilient in a frame 6 by means of torsion springs 7 stored.
  • the screen bars 3 are arranged in the conveying direction 2 of the coarse grain in three successive rows, so there are three hornfedernd mounted units of carrier 4 and sieve bars 3 are provided, wherein the three units are arranged in the conveying direction 2 of the coarse grain stepwise one behind the other.
  • a screened material to be separated into coarse grain and fine grain is fed to the device by means of a first conveyor belt 81, the screenings being guided one after the other over the three successive rows of screens 1, with the fine grain portion being screened out.
  • the coarse grain is thereby fed from the screen bars 3 in its conveying direction 2 a second conveyor belt 82, whereas the fine grain trickles transversely to the conveying direction 2 of the coarse grain between the screen bars 3 in the direction of arrows 9 on a third conveyor belt 10, with the aid of which third conveyor belt 10th the fine grain can be removed.
  • the frame 6 is arranged in the transfer area from the first conveyor belt 7 to the third conveyor belt 10.
  • the screen bars 3 embrace the carrier 4 each by 90 ° and are held by means of a profile 11 on the support 4, wherein the screen bars 3 are clamped by means of Torbandschrauben 12 between the support 4 and the profile 11.
  • Torbandschrauben 12 between the support 4 and the profile 11.
  • recesses for the screen bars 3 are provided, which recesses are at least partially penetrated by the screen bars 3, which allows the best possible positional fixation of the screen bars 3 relative to the carrier 4.
  • Fig. 4 engages the carrier 4 by means of an integrally formed thereon axis 13 via a spring 14 secured against rotation in a hub 15 of the torsion spring 7, which torsion spring 7 in turn rotatably screwed via a housing 16 on the frame 6.
  • only one torsion spring 7 may be provided per carrier 4, or else the carrier 4 is supported on both sides by torsion springs 7 in the frame 6 in a torsion-springing manner.

Landscapes

  • Combined Means For Separation Of Solids (AREA)

Claims (6)

  1. Dispositif pour séparer des particules fines et grosses, avec un tamis (1), composé de barres de tamis (3) alignées en rangées les unes à côté des autres, descendant dans la direction de transport (2) des grosses particules, et avec un support (4) pour les barres de tamis (3) fixées à une extrémité au support (4), susceptibles d'être excitées en vibration par le produit à tamiser, le support (4) étant disposé dans un bâti (6) et les barres de tamis (3) étant disposées en au moins deux rangées se suivant, en observant dans la direction de transport (2) des grosses particules, caractérisé en ce que le support (4) en forme de barre est monté en palier dans le bâti (6), de façon à pouvoir tourner, avec un effet élastique, autour de son axe longitudinal (5) s'étendant transversalement par rapport aux barres de tamis (3).
  2. Dispositif selon la revendication 1, caractérisé en ce qu'au moins deux supports (4), montés de façon à pouvoir osciller, munis chacun de barres de tamis (3), disposés les uns derrière les autres en forme d'échelons dans la direction de transport (2) des grosses particules, sont prévus dans le bâti.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que les barres de tamis (3) entourent le support (4) chaque fois d'au moins 90°, et en ce que les barres de tamis (3) sont maintenues sur le support (4) au moyen d'un profilé (11), recevant les barres de tamis (3) entre lui et le support (4).
  4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que le bâti (6) est disposé dans la zone de transition de deux bandes transporteuses (81, 10) et est relié de façon désolidarisable à au moins l'une des bandes transporteuses (81).
  5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que les supports (4) forment, avec les barres de tamis (3) et le bâti (6), un ensemble de construction susceptible d'être fixé sur une tête de bande d'une bande transporteuse (81).
  6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce qu'un cadre de transport (18) appartient au bâti (6).
EP03450192A 2002-09-19 2003-08-29 Dispositif pour séparer des particules fines et grosses Expired - Lifetime EP1400288B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT14082002 2002-09-19
AT0140802A AT411577B (de) 2002-09-19 2002-09-19 Vorrichtung zum trennen von grobkorn und feinkorn

Publications (3)

Publication Number Publication Date
EP1400288A2 EP1400288A2 (fr) 2004-03-24
EP1400288A3 EP1400288A3 (fr) 2006-11-02
EP1400288B1 true EP1400288B1 (fr) 2009-07-22

Family

ID=27625640

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03450192A Expired - Lifetime EP1400288B1 (fr) 2002-09-19 2003-08-29 Dispositif pour séparer des particules fines et grosses

Country Status (5)

Country Link
US (1) US7011217B2 (fr)
EP (1) EP1400288B1 (fr)
JP (1) JP2004105965A (fr)
AT (1) AT411577B (fr)
DE (1) DE50311724D1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050239744A1 (en) * 2004-04-22 2005-10-27 Michael Ioelovich Method of producing microcrystalline cellulose-containing compositions
GB0712933D0 (en) * 2007-07-04 2007-08-15 White Roger Apparatus for sorting waste materials
EP2303730B1 (fr) * 2008-06-25 2015-06-03 Brunes, Per Convoyeur vibrant
US8708154B1 (en) 2011-12-23 2014-04-29 Tim Holmberg Adjustable spring grizzly bar material separator
AT516406B1 (de) * 2015-05-06 2016-05-15 Rubble Master Hmh Gmbh Vorrichtung zum Trennen von Grobkorn von kleineren Korngrößen
US10974280B2 (en) * 2017-09-27 2021-04-13 Theodore Leonard Kasper Rock separator
GB2573013B (en) * 2018-04-20 2021-06-16 Terex Gb Ltd Screening apparatus with improved screen media
CN110813756B (zh) * 2019-11-21 2022-04-15 中卫市金城种业有限责任公司 一种可以自动挑选优质种子的装置
CN111660476A (zh) * 2020-05-25 2020-09-15 安徽方园塑胶有限责任公司 一种内置加强筋筛网的制作模具
CN112191491A (zh) * 2020-10-31 2021-01-08 湖北京山群健米业有限公司 一种大米加工用分级筛
CN113207447B (zh) * 2021-05-13 2021-11-16 农业农村部南京农业机械化研究所 一种用于食用豆联合收割机的清选机构及其工作方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US155702A (en) * 1874-10-06 Improvement in grain-separators
US327050A (en) * 1885-09-29 Grain screen or separator
US2443176A (en) * 1945-02-21 1948-06-15 Us Interior V-opening screen
US2775347A (en) * 1953-07-28 1956-12-25 Weston David Method and apparatus for screening materials
GB958739A (en) * 1961-11-28 1964-05-27 Stamicarbon Improvements in or relating to bar screens
DE1161823B (de) * 1961-11-28 1964-01-30 Stamicarbon Sieb mit einseitig am Eintrittsende verklemmten Siebstaeben
US3241671A (en) * 1964-02-12 1966-03-22 Herbert C Brauchla Vibratory comb sizer
DE3339605A1 (de) * 1983-11-02 1985-05-09 Mogensen Gmbh & Co Kg, 2000 Wedel Siebvorrichtung, insbesondere fuer siebschwierige materialien
DE3834381A1 (de) * 1988-10-10 1990-04-12 Gronholz Claus Vorrichtung zum zerkleinern und aufbereiten von grosskoernigem material
GB8824930D0 (en) * 1988-10-25 1988-11-30 Extec Screens & Crushers Ltd Screening device for particulate material
US5310065A (en) * 1990-07-30 1994-05-10 Sure Alloy Steel Corporation Self-cleaning coal bypass and debris separation grid assembly with rotary clearing mechanism
IE64987B1 (en) * 1990-08-24 1995-09-20 Shattock Ltd A screen
US5322170A (en) * 1990-12-11 1994-06-21 The Read Corporation Waste material separating apparatus and method
DE4418175C5 (de) * 1993-05-26 2006-02-16 Telsonic Ag Vorrichtung und Verfahren zum Sieben, Klassieren, Sichten, Filtern oder Sortieren von Stoffen
EP0983803B1 (fr) * 1998-08-31 2000-12-20 Ventilatorenfabrik Oelde Gmbh Procédé et dispositif pour séparer des matières à faculté d' écoulement

Also Published As

Publication number Publication date
EP1400288A3 (fr) 2006-11-02
AT411577B (de) 2004-03-25
JP2004105965A (ja) 2004-04-08
US20040074815A1 (en) 2004-04-22
EP1400288A2 (fr) 2004-03-24
US7011217B2 (en) 2006-03-14
DE50311724D1 (de) 2009-09-03
ATA14082002A (de) 2003-08-15

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