EP1615727B1 - Verfahren zum sieben von erdreich und siebvorrichtung - Google Patents

Verfahren zum sieben von erdreich und siebvorrichtung Download PDF

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Publication number
EP1615727B1
EP1615727B1 EP04726528A EP04726528A EP1615727B1 EP 1615727 B1 EP1615727 B1 EP 1615727B1 EP 04726528 A EP04726528 A EP 04726528A EP 04726528 A EP04726528 A EP 04726528A EP 1615727 B1 EP1615727 B1 EP 1615727B1
Authority
EP
European Patent Office
Prior art keywords
soil
screening device
scoop
screening
shafts
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
EP04726528A
Other languages
English (en)
French (fr)
Other versions
EP1615727A1 (de
Inventor
Paavo Vasara
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.)
Yhteisviejat Tamex Oy
Original Assignee
Yhteisviejat Tamex Oy
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 Yhteisviejat Tamex Oy filed Critical Yhteisviejat Tamex Oy
Publication of EP1615727A1 publication Critical patent/EP1615727A1/de
Application granted granted Critical
Publication of EP1615727B1 publication Critical patent/EP1615727B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/92—Digging elements, e.g. suction heads
    • E02F3/9256—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head
    • E02F3/9268—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head with rotating cutting elements
    • E02F3/9281—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head with rotating cutting elements with axis of rotation in horizontal and transverse direction of the suction pipe
    • 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
    • B07B1/14—Roller screens
    • B07B1/15—Roller screens using corrugated, grooved or ribbed rollers
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/407—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with ejecting or other unloading device
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F7/00—Equipment for conveying or separating excavated material
    • E02F7/06—Delivery chutes or screening plants or mixing plants mounted on dredgers or excavators

Definitions

  • the invention relates to a screening device and a method for screening of soil removed from the ground and transporting it off the site by means of a scoop or a similar soil-processing device and in which method screening is carried out by means of a screening device connected to the scoop and soil removed with the scoop under the water surface by means of the scoop motion, whereby soil and water are moved towards the screening device, essentially deviating from the horizontal and most suitably located in an essentially tilted or vertical direction, and through it into the scoop and the soil gained into the scoop is sucked by means of a pump and removed into an outlet tube.
  • a horizontal screening device comprises several shafts rotatable side by side and furnished with discs. The distance between shafts and the size of discs are so chosen that the discs are partly overlapping each other. The soil to be screened is lifted onto to the screening table and the soil material that has penetrated the screen is transported away from the screen underside.
  • a screen coop in the bottom plate of which there is in the rear part an opening, into which shafts rotatable side by side are placed and shafts are furnished with discs. Soil is taken into the scoop, the scoop is lifted up and rotation of shafts started. The soil that has penetrated the screen falls from scoop, while not penetrated soil remains in it. On screening the scoop is kept for instance over the platform of a lorry. The soil that has not penetrated the screen is emptied elsewhere tilting the scoop.
  • the screening method and device according publication 94729 is intended for screening of soil transported in different ways to the screening device and lifted onto the screen table, whereby screening takes place by means of gravitation through the horizontal screen table. Soil that has not penetrated the screen must be removed from the screen table every now and then.
  • a screening method and screening device according to utility model 1803 connected to a working machine can itself take soil, the working machine must then be driven to the screening site, where screening takes place in the working machine scoop by means of gravitation a scoopful at a time.
  • the method according to the invention is characterized in that screening is carried out by rotating the shafts of the screening device, which is formed of several shafts side by side and of discs fixed to them at a distance from each other, while at the same time by means of the said pump soil and water is sucked through said screening device.
  • the screening device in accordance with the invention is characterized in that the screening device is formed of several rotatable shafts side by side and of discs fixed to them overlapping each other and at a distance from and in respect to each other.
  • the advantage of the invention is that especially by removing soil on dredging the watercourses it is possible to keep the scoop connected to the working machine all the time or at least mainly in the bottom, to move it in bottom direction during working and at the same time to screen bottom soil and remove screened soil from the bottom without lifting up the scoop.
  • the layers are often of a sediment one wants to get mixed in the water as little as possible during dredging. In some cases the sediments even contain poisons.
  • the important advantage is that the dredging scoop can be in slow motion during working in the bottom, and also when sucking water by pump into the scoop, the removed soil and water moves through the screen to the pump and to the outlet tube without the bottom soil getting hardly mixed at all in the water of the watercourse.
  • the screen separates soil, which cannot be let to the pump and the outlet tube. Separation takes place during working without lifting up the scoop apparatus from bottom.
  • the screening device When the screening device is in a position deviating from the horizontal, it can while working with the scoop, carry out screening.
  • the screen device can clean itself and the construction is so made that the screening device rejects pieces, which cannot penetrate the screen.
  • suction dredging blocks often are formed in the grating in front of the screen by plastic bags, ends of boards, scrap metal etc. and clearing the screen of them means interruptions in work. Blocks appear especially on dredging of rivers, city canals and harbours. In the invention the screening device clears itself and thus interruptions due to blocks are minimized.
  • Figure 1 shows bottom dredging of a watercourse by scoop equipment 1 connected, for instance, to arm 2 of a dredge floating on the surface. Further, the scoop equipment can be turned with respect to arm 2 by means of cylinder 6.
  • the scoop apparatus comprises a pump 4 and for it a motor 5 and also an outlet tube 3.
  • Scoop equipment 1 is open only from its front edge, whereby soil gets into the scoop, when the scoop is moved on the bottom at a certain depth. Pump 4 sucks through the same open portion water and soil into the scoop. Working causes very little mixing of the soil in the surrounding water. Scoop apparatus 1 needs not to be lifted up in between. Its transfers to new motion are also done under water close to the bottom. Greater objects do not remain in the scoop, but the more or less vertical assembly of the screening device rejects greater pieces and moves them away either sidewards or upwards.
  • FIG. 2 shows the location of screening device in the scoop.
  • the screening device has shafts 9 and discs 12 fitted to them. Furthermore, discs 12 are partly overlapping. Shafts 9 are rotated in the same direction by means of a rotating means inside box 7 and a driving motor 15. There are in the upper and lower part additional ribs 10. Shafts 9 can be fitted horizontally or vertically. Vertically assembled screening device rejects bigger pieces better sidewards.
  • discs 12 of the screening device are visible as a section view, in this case the vertical assembly.
  • the screening device can even be tilted, especially backward, with other words, the upper part backward towards pump 4.
  • high pressure water jets can be fitted for screening device cleaning and also if there is hard clay in the bottom.
  • hard clods of clay in front of the screening device can be crushed, which otherwise would not penetrate the screen. Also between the discs clay may get stuck and rotate so that the penetration power of the screen deteriorates.
  • the water jet scan also be directed to clean the screen.
  • the water jet nozzle parts are protected by projecting parts 8.
  • Nozzle tubes 13 run from distributor pipe 16 and are turn towards the screening device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Crushing And Grinding (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Disintegrating Or Milling (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Claims (7)

  1. Method zum Separieren vom Boden, der aus dem Erdreich abgemacht ist und zum Transportieren weg von einem Separierungsplatz mit Hilfe von einem Becher (1) oder ein ähnliches Gerät, das den Boden bearbeitet, in welchem Method die Sortierung mit Hilfe von einem Sortierergerät (9, 12), das bei dem Becher angegliedert ist, durchgeführt wird, und mit dem Becher mit einer Führungsbewegung des Bechers der Boden unter dem Wasser abgemacht wird, wobei der Boden und das Wasser auf das Sortierergerät (9, 12) zu, das wesentlich aus der horizontale Richtung abweicht und günstig wesentlich geneigt oder in eine vertikale Richtung lokalisiert ist, versetzt werden und der Boden und das Wasser durch das Sortierergerät in den Becher (1) versetzt werden und der Stoff im Becher mit Hilfe von einer Pumpe (4) gesaugt wird und ins Abzugrohr (3) ausgemacht wird, dadurch gekennzeichnet, dass das die Sortierung durch Drehen von mehreren, nebeneinanderliegenden Achsen (9) durchgeführt wird und die Achsen des Sortierergerätes geformt von Scheiben (12), die so festgesetzt sind, dass sie eine Abstand zwischen ihnen haben, gedreht werden und mit Hilfe von der obengenannten (4) Pumpe werden der Boden und das Wasser durch das obengenannte Sortierergerät gleichzeitig gesaugt.
  2. Method nach Anspruch 1, dadurch gekennzeichnet, dass die Achsen (9) in die gleiche Richtung gedreht werden.
  3. Method nach Anspruch 1, dadurch gekennzeichnet, dass für die Intensivierung der Degradation des Bodens ein Wasserstrahl, der zum Sortierergerät zugeführt ist, in den Boden, der im Sortierergerät (9, 12) oder vor dem Sortierergerät lokalisiert ist, ausgerichtet wird um die Degradation des Bodens zu intensivieren.
  4. Sortierergerät (9, 12) das am Becher (1) oder an einem ähnlichen Gerät, das Boden abmachen kann und das bewegt werden kann, angegliedert werden kann, welches Sortierergerät so montiert ist, dass es in einer Position funktioniert, die wesentlich aus der horizontalen Richtung abweicht, und günstig wesentlich eine schief gestellte oder vertikale Position hat und um den Boden unter dem Wasser durch das Sortierergerät zu transportieren, gibt es eine Pumpe (4) am Becher um den Boden und das Wasser durch das Sortierergerät (9, 12) zu saugen und um den Boden und Wasser ins Ablaufrohr (3) auszumachen, dadurch gekennzeichnet, dass das Sortierergerät aus mehrere, nebeneinanderliegende, drehbare Achsen (9) und Scheiben (12), die einen Abstand voneinander haben und ineinandergefügt betreffend die beide an der Achsen befestigt sind, geformt ist.
  5. Sortierergerät nach Anspruch 4, dadurch gekennzeichnet, dass die Achsen (9) lateral sind.
  6. Sortierergerät nach Anspruch 4, dadurch gekennzeichnet, dass die Achsen (9) vertikal oder vertikal und schief gestellt nach hinten hin an ihrem Oberteil sind.
  7. Sortierergerät nach Anspruch 4, dadurch gekennzeichnet, dass die Scheibe (12), die an der Achse (9) lokalisiert ist, eine wellenförmige Peripherie hat.
EP04726528A 2003-04-09 2004-04-08 Verfahren zum sieben von erdreich und siebvorrichtung Expired - Lifetime EP1615727B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20030530A FI113846B (fi) 2003-04-09 2003-04-09 Menetelmä maa-aineksen seulomiseksi ja seulaväline
PCT/FI2004/000218 WO2004089557A1 (en) 2003-04-09 2004-04-08 Method for screening soil and a screening device

Publications (2)

Publication Number Publication Date
EP1615727A1 EP1615727A1 (de) 2006-01-18
EP1615727B1 true EP1615727B1 (de) 2010-03-24

Family

ID=8565938

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04726528A Expired - Lifetime EP1615727B1 (de) 2003-04-09 2004-04-08 Verfahren zum sieben von erdreich und siebvorrichtung

Country Status (5)

Country Link
EP (1) EP1615727B1 (de)
AT (1) ATE461757T1 (de)
DE (1) DE602004026168D1 (de)
FI (1) FI113846B (de)
WO (1) WO2004089557A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI121820B (fi) * 2006-05-15 2011-04-29 Ramtec Oy Seulakauha ja seulakauhan voimansiirtomoduli
NL2005081C2 (nl) * 2010-07-14 2012-01-17 Damen Dredging Equipment B V Snijkop.
JP5181110B1 (ja) * 2011-08-17 2013-04-10 独立行政法人農業・食品産業技術総合研究機構 汚染土壌表層の除去工法
ITTO20120162A1 (it) * 2012-02-24 2013-08-25 Cangini Benne Srl Benna vagliatrice
CN104487634B (zh) 2012-07-27 2019-07-05 诺蒂勒斯矿物太平洋有限公司 一种自清洁收集装置及方法
CN102995686B (zh) * 2012-12-06 2014-08-20 哈尔滨工程大学 水池清淤系统
JP6423825B2 (ja) * 2016-07-07 2018-11-14 株式会社伊藤商会 ふるい構造
CN109899069A (zh) * 2019-03-11 2019-06-18 李成份 一种煤矿采煤设备

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI81864C (fi) * 1986-03-17 1993-01-13 Laennen Tehtaat Oy Sugmuddringsanordning
DE4104950A1 (de) * 1991-02-18 1992-08-20 Helmut Wack Schaufel fuer erdbewegungsgeraete
FI94729C (fi) * 1993-10-22 1995-10-25 Humuspehtoori Oy Menetelmä ja laite maamassan seulomiseksi
JP2660664B2 (ja) * 1994-07-11 1997-10-08 新キャタピラー三菱株式会社 作業用自走車の掘削篩い選別装置
JP2003045579A (ja) * 2001-07-30 2003-02-14 Sumitomo Wiring Syst Ltd モジュラプラグ

Also Published As

Publication number Publication date
ATE461757T1 (de) 2010-04-15
WO2004089557A1 (en) 2004-10-21
EP1615727A1 (de) 2006-01-18
FI20030530A0 (fi) 2003-04-09
DE602004026168D1 (de) 2010-05-06
FI113846B (fi) 2004-06-30

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