EP3305424B1 - Machine de criblage comprenant plusieurs étages de criblage installés les uns sur les autres - Google Patents

Machine de criblage comprenant plusieurs étages de criblage installés les uns sur les autres Download PDF

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Publication number
EP3305424B1
EP3305424B1 EP16002174.7A EP16002174A EP3305424B1 EP 3305424 B1 EP3305424 B1 EP 3305424B1 EP 16002174 A EP16002174 A EP 16002174A EP 3305424 B1 EP3305424 B1 EP 3305424B1
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EP
European Patent Office
Prior art keywords
screen
screening machine
deck
conveyor belt
decks
Prior art date
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Application number
EP16002174.7A
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German (de)
English (en)
Other versions
EP3305424A1 (fr
Inventor
Ernst Wilhelm König
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Individual
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Individual
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Priority to EP16002174.7A priority Critical patent/EP3305424B1/fr
Publication of EP3305424A1 publication Critical patent/EP3305424A1/fr
Application granted granted Critical
Publication of EP3305424B1 publication Critical patent/EP3305424B1/fr
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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
    • 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
    • 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 screening machine according to the preamble of claim 1.
  • the WO 2004/011159A1 discloses a screening machine having the features of the preamble of claim 1.
  • the screening machine comprises a plurality of screen decks arranged one above the other, which are movable in order to divide the material to be separated into fractions with different grain sizes.
  • a conveyor belt is arranged under the bottom screen deck to convey the fraction that has fallen through the bottom screen deck.
  • the fractions with a larger grain size are disposed of at the end of the respective screen deck.
  • DE 4216427 A1 discloses an apparatus for separating soil from valuable crops. For this purpose, the entire field crops are separated from the overall feed material mixture in a first separation zone, while relatively large usable fragments are then first separated from the partial mixture containing at least fragments and soil, and then the smaller usable fragments are separated from the soil from the remaining mixture.
  • GB 1909 10802A discloses a cleaning device in which a brush can be moved along screens.
  • GB 2 282 828 A discloses a conveyor system for peat, in which several conveyor belts are arranged one behind the other.
  • DE 2 140 371 discloses a sorting device for agricultural and garden crops with rotatable pairs of rollers, between which a passage gap for the sorted material that has fallen through is formed.
  • GB 139 865 A discloses a screening device in which the supplied material to be screened is moved by conveyor belts with brushes along screen surfaces which are aligned inclined upwards in the conveying direction. The material that has been screened through a screen surface falls onto the top of a conveyor belt arranged underneath and is then moved back along a screen surface after being diverted.
  • the invention is based on the task of developing a screening machine which always ensures 100% utilization of the screening decks 6 in a multi-deck screening machine. For example, one can assume that with a 4-deck screening machine of conventional type, when screening 5 grain sizes with feed material from above in the last 4th screen deck, only about 50% of the screen surface is available for screening, this is natural the thing. Because the feed material runs from approx. 0 to 40 mm at the feed in a 4-deck screen to the outlet with an incline of approx. 30 degrees. This evil is eliminated by the invention.
  • a screening machine is installed with several screen decks one below the other. Conveyor belts are installed under these screen decks to transport the screened material back to the start of the next screen deck below.
  • figure 1 shows a material feed 1, an inlet hopper 2, unbalance motors 3, a screen box 4, an outlet hopper 5 for the end product, several screen decks 6, three conveyor belts 7 for transporting the screened material back to the start of the following screen deck 6, three drum drives 8 of the three conveyor drives of the conveyor belts 7, three deflection rollers 9 for the conveyor belts 7, inlet chutes 10 for the screen decks 6 and outlet chutes 11 for the screen decks 6.
  • figure 2 shows the filled material supply 1 and feeding of the material for screening, a feed bunker or inlet hopper 2, unbalance drives 3, a screen box 4 of the screening machine, an outlet hopper 5 of the end product, screen decks 6, conveyor belts 7 for returning the screened material for transport to the beginning of the screen decks 6 underneath, drive drums 8 for conveyor belts 7, idler drums 9 of the conveyor belts 7, inlet chutes 10 for the screen decks 6 and outlet chutes 11 for the screen decks 6.
  • the feed material reaches the screening machine by means of a feed bunker 1 or a conveyor belt, conveyed here to the first screen deck 6.
  • the so-called oversize is screened out via the discharge chute 11.
  • the screened material falls onto the conveyor belt by gravity, 7 this conveyor belt 7 transports the material to the beginning of the screen deck 6 below.
  • This screen deck 6 receives 100% material of the previously screened material .
  • the second screening takes place.
  • the oversized grain is separated out via the outlet chute 11 via the second screen deck 6 .
  • the screened material reaches 100% by gravity on the conveyor belt 7 for return and on the beginning of the third screen deck 6 .
  • the oversized grain is discharged again via the discharge chute 11.
  • the conveyor belts Belts on the conveyor belts 7 have a round curvature from the center of the conveyor belt outwards of at least 30 degrees, and an elevation of 30 mm and 20 to 15 mm wide is vulcanized on the outer edges of the conveyor belt so that no material falls off the side of the conveyor belt 7 escapes.

Landscapes

  • Combined Means For Separation Of Solids (AREA)

Claims (1)

  1. Machine à tamiser avec deux moteurs à balourds et un caisson de tamisage (4) pouvant être entraîné par les moteurs à balourds (3), et plusieurs étages de tamisage (6) installés les uns au-dessous des autres dans le caisson de tamisage (4) et comportant des goulottes d'entrée (10) et des goulottes de sortie (11), le matériau surdimensionné pouvant être séparé au niveau des étages de tamisage (6) à chaque fois par une des goulottes de sortie (11), caractérisé en ce qu'une bande transporteuse (7) avec un tambour d'entraînement (8) et un tambour pour changer de direction (9) est déplacée entre des étages de tamisage (6) pour renvoyer le matériau criblé à un début de l'étage de tamisage suivant (6) situé en dessous, la machine à tamiser étant conçue de telle sorte que le matériau criblé d'un étage de tamisage (6) tombe par gravité sur la bande transporteuse (7) disposée en dessous, et le matériau criblé peut être transporté par cette bande transporteuse (7) jusqu'au début de l'étage de tamisage (6) situé en dessous, de sorte que cet étage de tamisage (6) situé en dessous reçoit 100 % du matériau criblé précédemment.
EP16002174.7A 2016-10-08 2016-10-08 Machine de criblage comprenant plusieurs étages de criblage installés les uns sur les autres Active EP3305424B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16002174.7A EP3305424B1 (fr) 2016-10-08 2016-10-08 Machine de criblage comprenant plusieurs étages de criblage installés les uns sur les autres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16002174.7A EP3305424B1 (fr) 2016-10-08 2016-10-08 Machine de criblage comprenant plusieurs étages de criblage installés les uns sur les autres

Publications (2)

Publication Number Publication Date
EP3305424A1 EP3305424A1 (fr) 2018-04-11
EP3305424B1 true EP3305424B1 (fr) 2022-11-30

Family

ID=57178184

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16002174.7A Active EP3305424B1 (fr) 2016-10-08 2016-10-08 Machine de criblage comprenant plusieurs étages de criblage installés les uns sur les autres

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EP (1) EP3305424B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111515112A (zh) * 2020-05-19 2020-08-11 莱芜亿达新材料科技有限公司 一种活性氧化铝球加工用筛选装置
CN112705450A (zh) * 2020-11-24 2021-04-27 安徽建筑大学 一种高效率土木施工用筛沙装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB139865A (en) * 1919-02-13 1920-03-18 William Thomas Powling Improvements in or relating to screening apparatus
DE2140371A1 (de) * 1971-08-12 1973-02-15 Komen & Kuin N V Maschf Sortiervorrichtung
GB1363584A (en) * 1972-01-26 1974-08-14 Coal Industry Patents Ltd Decks for vibrating screens
US3848744A (en) * 1972-12-04 1974-11-19 J Flaherty Green pellet sizing screen
DE19500022A1 (de) * 1994-05-05 1996-07-04 Gerhard Dipl Ing Mock Siebvorrichtung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US356165A (en) * 1887-01-18 Combined coal elevator
GB190910802A (en) * 1909-05-07 1910-03-17 Charles Gilson Staniforth Improvements in or relating to Purifiers for Treating Flour Products.
AT385503B (de) * 1986-10-14 1988-04-11 Wageneder Sbm Gmbh Fahrrbare einrichtung zur sortierung von kompostbestandteilen
DE4216427A1 (de) * 1992-05-18 1993-11-25 Buetfering Maschinenfabrik Gmb Verfahren und Vorrichtung zum Abtrennen von Erden aus Feldfrüchten
GB2282828B (en) * 1993-10-18 1997-02-26 Bord Na Mona Improvements in and relating to biofiltration
DE19715889C2 (de) * 1997-04-16 2001-02-22 Willibald Gmbh Maschinenfabrik Absiebgerät zum Anbau an vornehmlich mobile Zerkleinerungsvorrichtungen für organische Abfallmaterialien
FI20021428A (fi) * 2002-07-31 2004-02-01 Metso Minerals Tampere Oy Menetelmä seulontakoneen ohjaamiseksi ja seulontakone
CN204892336U (zh) * 2015-08-17 2015-12-23 济南正新畜牧饲料设备有限公司 黄粉虫分级设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB139865A (en) * 1919-02-13 1920-03-18 William Thomas Powling Improvements in or relating to screening apparatus
DE2140371A1 (de) * 1971-08-12 1973-02-15 Komen & Kuin N V Maschf Sortiervorrichtung
GB1363584A (en) * 1972-01-26 1974-08-14 Coal Industry Patents Ltd Decks for vibrating screens
US3848744A (en) * 1972-12-04 1974-11-19 J Flaherty Green pellet sizing screen
DE19500022A1 (de) * 1994-05-05 1996-07-04 Gerhard Dipl Ing Mock Siebvorrichtung

Also Published As

Publication number Publication date
EP3305424A1 (fr) 2018-04-11

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