EP3248695B1 - Dispositif de tamisage - Google Patents

Dispositif de tamisage Download PDF

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Publication number
EP3248695B1
EP3248695B1 EP17000866.8A EP17000866A EP3248695B1 EP 3248695 B1 EP3248695 B1 EP 3248695B1 EP 17000866 A EP17000866 A EP 17000866A EP 3248695 B1 EP3248695 B1 EP 3248695B1
Authority
EP
European Patent Office
Prior art keywords
screened
screening device
bars
drum
screening
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
EP17000866.8A
Other languages
German (de)
English (en)
Other versions
EP3248695A1 (fr
Inventor
Schlüter Friedrich-Wilhelm
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.)
Individual
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Individual
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Publication date
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Publication of EP3248695A1 publication Critical patent/EP3248695A1/fr
Application granted granted Critical
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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
    • B07B1/04—Stationary flat 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
    • 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
    • B07B1/18—Drum 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
    • 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
    • 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 screening device for separating the fine-grained fractions of a material to be screened.
  • the material to be screened is conveyed over a plurality of longitudinally arranged rods which form a plane with a slight gradient.
  • the material to be screened is moved over the rods by a vibration drive, whereby long and flat components of the material to be screened can stand up and like the fine-grained portions can fall through the free space between the rods.
  • US1054120 discloses a screening device for separating the fine-grained fractions of a material to be screened according to the preamble of claim 1.
  • the invention makes it an object to provide a screening device available in which long and planar portions of the Material to be screened safely leaves the screening device as oversized grain.
  • This technical problem is solved in a screening device for separating the fine-grained portions of a screened item according to claim 1 by the measure that a plurality of spaced rods are arranged transversely to a running direction of the screened item.
  • the rods are preferably arranged running parallel and equally spaced, whereby a well-defined granularity of the material to be screened is given.
  • the rods are arranged on a circular path and form a drum rotating about their longitudinal axis.
  • the rotating movement of the drum causes the material to be screened to flow downwards across the screen bars.
  • the rods are connected to a receiving ring at least on one side.
  • a receiving ring can be provided with openings that are matched to the cross section of the rods and into which the rods are fitted. A secure hold and an exact alignment of the rods is guaranteed.
  • such rings can be provided at both ends of these rods, which can also be used for mounting and driving the drum.
  • a receiving ring and a drive are provided on the inlet side of the material to be screened.
  • a throughput of the material to be screened from the inlet side through the drum to the outlet side can be achieved in a simple manner by the measure that the longitudinal axis of the drum has an inclination with respect to a horizontal. It is preferred that the angle of inclination is adjustable, for example between 0 ° and 5 °.
  • the cross section of the rods is triangular and that flat sides form the screen surface facing the material to be screened.
  • the rods with a triangular cross-section have the advantage that the fine-grained portion safely passes through the gap between the rods, since this gap widens.
  • roller brush is provided on the side facing away from the screen surface.
  • the length of this roller brush corresponds at least to the effective length of the rods over which the screening process takes place. If the bristles of the brush are in constant contact with the rods, the space between the rods is simultaneously cleaned by the rotation of the drum.
  • a conveyor belt for applying the material to be screened onto the screen surface provided, a first funnel-like collecting device for the fine-grained portions of the material to be screened and a second funnel-like collecting device for the oversized grain on the outlet side.
  • the drum can be closed at one end and the drum is loaded with material to be sieved from the same side on which the oversized grain emerges.
  • a simple storage and a simple drive via a central bolt on the closed side of the drum is then possible.
  • the entire screening device according to the invention can be arranged in a frame.
  • the screening device according to the invention is also ideally suited for mobile use.
  • the weight and dimensions can be considerably larger according to the specified specification.
  • the sieving device 1 is arranged in a stable frame 2 and, with dimensions of approximately 2 m ⁇ 2 m ⁇ 1.20 m and a weight of less than 1 t, is also ideally suited for mobile use.
  • a drum 5 rotating about its longitudinal axis 4 is formed by a multiplicity of spaced rods 3, arranged on a circular path.
  • the rods 3 run parallel and are equally spaced.
  • a receiving ring 7 for the rods 3 and an electric motor as a drive 8 are provided on the inlet side 6 of a material to be screened (not shown).
  • the drum 5 is loaded with material to be screened via a conveyor belt 9.
  • the throughput through the drum 5 is achieved by the fact that the longitudinal axis 4 of the drum 5 is positioned relative to the horizontal.
  • the angle of inclination is preferably adjustable between 0 ° and approx. 5 °.
  • the drum 5 with drive 8 is held within the frame 2 in a further frame 10 which can be pivoted with respect to this.
  • a first funnel-like collecting device 11 is provided below the drum 5, for collecting the fine-grained portion of the screened material which has been screened out.
  • a second funnel-like collecting device 13 On the outlet side 12 there is a second funnel-like collecting device 13 for the oversized grain that emerges intended.
  • the height of the two collecting devices 11, 13 extends approximately to the middle of the drum 5.
  • the rods 3 of triangular cross-section are held in openings in the receiving ring 7 and, with one flat side, form the sieve surface on the inside of the drum. So that a tip of a rod 3 is directed radially outward.
  • the length of the roller brush 15 corresponds to the effective length of the rods 3 over which the screening process takes place.
  • the roller brush 15 is in constant use in the spaces between the rods 3. The cleaning effect can be further increased if the axis of the roller brush 15 is positioned relative to the longitudinal axis 4 of the drum 5.

Landscapes

  • Combined Means For Separation Of Solids (AREA)

Claims (10)

  1. Dispositif de tamisage (1) pour la séparation des parties à grains fins d'un produit à tamiser, dans lequel une multitude de barres espacées (3) sont disposées transversalement à un sens de circulation du produit à tamiser et caractérisé en ce que les barres constituent un tambour (5), que la section transversale des barres (3) est de forme triangulaire et que les côtés plats constituent la surface de tamisage tournée vers le produit à tamiser, les pointes des barres étant orientées radialement vers l'extérieur.
  2. Dispositif de tamisage selon la revendication 1, caractérisé en ce que les barres (3) sont raccordées au moins d'un côté à un anneau récepteur (7).
  3. Dispositif de tamisage selon une ou plusieurs des revendications précédentes, caractérisé en ce qu'un anneau récepteur (7) est prévu du côté arrivée (6) du produit à tamiser.
  4. Dispositif de tamisage selon une ou plusieurs des revendications précédentes 2 et 3, caractérisé en ce que l'anneau récepteur est pourvu de percées adaptées à la section transversale des barres (3) et dans lesquelles les barres (3) sont ajustées.
  5. Dispositif de tamisage selon une ou plusieurs des revendications précédentes, caractérisé en ce que l'angle d'inclinaison des tambours (5) est réglable.
  6. Dispositif de tamisage selon une ou plusieurs des revendications précédentes, caractérisé en ce que le dispositif de tamisage (1) est disposé dans un premier cadre (2) et que le tambour (5) est maintenu avec un organe de commande (8) dans un autre cadre (10) qui est pivotable par rapport au premier cadre (2).
  7. Dispositif de tamisage selon une ou plusieurs des revendications précédentes, caractérisé en ce qu'une brosse à rouleaux (15) est prévue sur la face détournée de la surface de tamisage.
  8. Dispositif de tamisage selon la revendication 7, caractérisé en ce que la brosse à rouleaux (15) s'étend sur la longueur active des barres (3).
  9. Dispositif de tamisage selon la revendication 7 ou 8, caractérisé en ce que l'axe de la brosse à rouleaux est réglé par rapport à l'axe longitudinal du tambour.
  10. Dispositif de tamisage selon une ou plusieurs des revendications précédentes, caractérisé par une bande transporteuse (9), une trémie et/ou un toboggan pour l'application du produit à tamiser sur la surface de tamisage, un premier dispositif récupérateur en forme de trémie (11) pour les parties à grains fins du produit à tamiser et un second dispositif récupérateur en forme de trémie (13) pour les grains de taille excessive du côté sortie (12).
EP17000866.8A 2016-05-27 2017-05-22 Dispositif de tamisage Active EP3248695B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202016003265.9U DE202016003265U1 (de) 2016-05-27 2016-05-27 Siebvorrichtung

Publications (2)

Publication Number Publication Date
EP3248695A1 EP3248695A1 (fr) 2017-11-29
EP3248695B1 true EP3248695B1 (fr) 2021-08-04

Family

ID=56410200

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17000866.8A Active EP3248695B1 (fr) 2016-05-27 2017-05-22 Dispositif de tamisage

Country Status (2)

Country Link
EP (1) EP3248695B1 (fr)
DE (2) DE202016003265U1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019114041A1 (de) * 2019-05-26 2020-11-26 Dieffenbacher GmbH Maschinen- und Anlagenbau Siebvorrichtung, insbesondere zur Verwendung in einer Anlage zur Herstellung von Werkstoffplatten

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1054120A (en) * 1912-06-25 1913-02-25 Clemens Horst Company E Hop-separating cylinder.
US2241977A (en) * 1938-11-30 1941-05-13 Benjamin I Buck Bean grader
US4078995A (en) * 1976-06-01 1978-03-14 Utt Daniel W Earthworm harvesting apparatus
BE881831A (fr) * 1980-02-21 1980-08-21 Promotion Ind Off De Procede et appareil pour le classement d'objets
AT386764B (de) * 1986-10-24 1988-10-10 Voest Alpine Ag Stangensieb
DE3644146C2 (de) * 1986-12-23 1994-09-01 Werner Doppstadt Siebvorrichtung zum Aussieben von Komposterde aus verrottetem, organischen Material
GB2239824A (en) * 1990-01-13 1991-07-17 F W Screens Limited Screening machine for rock
FI98276C (fi) * 1995-02-06 1997-05-26 Sunds Defibrator Loviisa Oy Laitteisto pitkänomaisten partikkeleiden pituusseulontaa varten

Also Published As

Publication number Publication date
DE202016003265U1 (de) 2016-06-27
EP3248695A1 (fr) 2017-11-29
DE102017003143A1 (de) 2017-11-30

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