EP2113612A2 - Procédé de nettoyage d'une structure hydrotechnique - Google Patents

Procédé de nettoyage d'une structure hydrotechnique Download PDF

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Publication number
EP2113612A2
EP2113612A2 EP09005898A EP09005898A EP2113612A2 EP 2113612 A2 EP2113612 A2 EP 2113612A2 EP 09005898 A EP09005898 A EP 09005898A EP 09005898 A EP09005898 A EP 09005898A EP 2113612 A2 EP2113612 A2 EP 2113612A2
Authority
EP
European Patent Office
Prior art keywords
impurities
floating body
water
trough
barrier
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.)
Withdrawn
Application number
EP09005898A
Other languages
German (de)
English (en)
Other versions
EP2113612A3 (fr
Inventor
Fritz Schleith
Claus Schleith
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.)
Schleith GmbH
Original Assignee
Schleith 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 Schleith GmbH filed Critical Schleith GmbH
Publication of EP2113612A2 publication Critical patent/EP2113612A2/fr
Publication of EP2113612A3 publication Critical patent/EP2113612A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/28—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/02—Stream regulation, e.g. breaking up subaqueous rock, cleaning the beds of waterways, directing the water flow
    • E02B3/023—Removing sediments
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
    • E02B8/02—Sediment base gates; Sand sluices; Structures for retaining arresting waterborne material
    • 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
    • E02F7/065—Delivery chutes or screening plants or mixing plants mounted on dredgers or excavators mounted on a floating dredger

Definitions

  • the invention relates to a method for cleaning a hydrotechnical structure, in particular a reservoir upstream of a dam in the region of a bottom outlet, and a device therefor.
  • Hydrotechnical structures are available in a variety of forms. These include above all dams, dams, hydropower structures, earth embankments, retaining walls, manual drainage systems, spring sumps or temporary excavation pits that can fill with water.
  • the present invention relates in particular, but not limited, to dams. These dams or dams serve the damming of water, which then, for example, turbines for generating electrical power supplied becomes.
  • dam floor drains as they are, for example, in the DE-OS 1 634 140 or the DE 31 22 493 A1 are described. These bottom outlets must be kept open as they serve not only to supply water to turbines, but also altogether to regulate the water retained by the dam.
  • Object of the present invention is to eliminate these disadvantages and to improve a cleaning of the hydrotechnical structure.
  • the lifting element is designed so that it can bring even larger impurities, such as.
  • the further treatment of the impurities happens on the one hand on Siebtechnischem way and on the other hand by adding water, which is present at the hydrotechnical structures in sufficient quantity.
  • the coarsest constituents are to be separated from the impurities. These include above all the tree trunks and roots mentioned above, which are separated from a coarse grate by the other impurities, such as in particular the sludge. They can be removed manually from the coarse grate.
  • a concept of the invention is directed primarily to the design of this Grobrostes. He is tuned in its shape and flexibility on an arranged underneath tub. According to the invention it consists of at least two parts which are connected to each other via a hinge. By raising or lowering this joint, an inclination of the grate can be changed, whereby at the same time, however, the width of the grate is changed. In a normal horizontal position, the grate has a width which corresponds approximately to the width of the tub. If the joint is raised, the width of the grate is reduced so that a larger gap is created between the edge of the grate and a side wall of the tub.
  • the so blended impurities then pass from the tub in an outlet, between the tub and outlet preferably a barrier is provided which limits the mass flow as desired.
  • the barrier also forms a plurality of passages, for example, the outlet bottom or, if the barrier consists of several shut-off elements, by changing the distance between the shut-off elements.
  • a plurality of flow dividers are provided in the outlet, which can for example be configured angularly and directed against the stream. They split the stream and also split existing sludge lump od. Like. Impurities. Their activity is still supported by appropriate water jets, which are directed against the stream and also against the passage formed by the barrier.
  • the sieve drum On the spout then follows a sieve drum.
  • the sieve drum is preferably formed in two layers.
  • a first outer layer, d. h., The screen coat, is provided with the usual openings.
  • an inner sheath is provided, which consists of a mesh grid. As a result, the openings in the screen jacket are reduced in diameter. This positively influences the screenings.
  • the screenings emerging from the screen jacket then pass into a settling tank, where it can form a pumpable sludge sump. This sump is passed through a corresponding pump in the water of the turbines.
  • the sieve material emerging from the sieve drum can also be collected by a corresponding bucket wheel or removed from the sedimentation tank and transported further.
  • a corresponding bucket wheel or removed from the sedimentation tank and transported further.
  • the device according to the invention for cleaning a hydrotechnical structure has a floating body 1 which can float on a water surface 2.
  • a grate 8 which preferably, as in FIG. 2 shown, is formed in two parts.
  • the two parts 8.1 and 8.2 are connected to each other via a hinge 9.
  • the rust can be configured roof-shaped.
  • a trough 10 Under the grate 8 is a trough 10, in which a plurality of nozzles 11 and outlet openings 12 are provided, which are connected via a line 13 with a water supply source not shown in detail.
  • a bottom 14 of the tub 10 is inclined and funnel-shaped to an outlet 26 and to a screen drum 15, which is arranged inclined on the float 1.
  • Corresponding height adjustments are marked with 16 and 17 and only indicated schematically.
  • the area of the spout 26 is important to the present invention and therefore separate in FIG FIG. 3 shown. As mentioned above, it is funnel-shaped.
  • a shut-off 27 is provided, which consists of individual shut-off elements 28.1 to 28.5.
  • the individual shut-off elements 28.1 to 28.5 are held between four strips 29, but only two strips 29.1 and 29.2 are shown. The other two strips are behind these strips 29.1 and 29.2, so that the shut-off elements 28.1 to 28.5 clamped between the strips and are feasible.
  • a distance of the shut-off 27 or of a single shut-off element 28.1 to 28.5 can be set to a funnel bottom 30.
  • the individual shut-off elements 28.1 to 28.5 each form a passage 31 between them, which is likewise variable.
  • a plurality of flow dividers 32 are provided on the hopper floor 30. These are designed approximately angular.
  • the sieve drum 15 can by means of a drive, not shown in detail, but which is commercially available to be rotated about its longitudinal axis A, wherein it is mounted on respective races 18.1 and 18.2.
  • the screen drum 15 is constructed in two layers, wherein a layer is formed by the outer screen shell.
  • This screen jacket is provided with a plurality of holes not shown in detail, these holes along the longitudinal axis A may have a different diameter.
  • the interior of the screen shell 20 is with a Mesh grid occupied by the holes in the screen jacket 20 are reduced.
  • the screen drum 15 is otherwise open to the front, wherein the corresponding opening 21, a conveyor element 22, such as, for example, a conveyor belt or a pontoon can be assigned.
  • At least under one part of the sieve drum 15 is a further collecting trough 23 for receiving the material to be sieved from the sieve drum 15.
  • This collecting trough 23 is associated with a pump not shown in detail for discharging the material to be screened. Instead of the pump and a bucket wheel in the settling tank 23 or the opening 21 of the screen drum 15 may be provided downstream.
  • This scoop wheel has a back wall as a screen covering and a metal ring as a jacket. In the interior of this jacket, a plurality of pockets are provided distributed over the circumference, with which screenings can either be collected by the screen drum 15 or exhausted from the settling trough. If the bags then cross the upper crest when the scoop wheel is turned, the screenings fall out of the pockets onto a discharge chute.
  • a reservoir in particular from the area of a bottom outlet near a concrete dam impurities are brought by the gripper 5 to the surface.
  • impurities consist mainly of organic materials such as wood, leaves, etc., but especially from soil and mud, especially the latter has been very solidified by the high water pressure at the bottom of the reservoir so that it is very dense, relatively dry and strongly solidified.
  • the gripper 5 transfers the first brought to the surface impurities on the grate 8.
  • This consists, for example. From the longitudinal direction extending rods, which are arranged with a certain distance from each other. This distance is chosen so that especially larger pieces of wood are discarded and, for example, can be removed manually.
  • the remaining impurities can run to the outside. Smaller impurities fall through the grate, larger impurities are removed from the grate. Determining the roof slope can increase or decrease the area on which the sludge spreads. As a result, the nature and form of contamination can be taken into account.
  • the impurities are intensively treated with water. This means, above all, that the compacted sludge is dissolved and thoroughly mixed.
  • a ratio of solid to water of 1 to 4 or more is achieved.
  • the outlet openings 12 and also the nozzles 11 are designed and aligned such that they not only contribute to an intensive mixing of water with solids, but also slow or accelerate the flow of contamination in the direction of the sieve drum 15.
  • the barrier 27 is provided on the trough 10 as desired, which can be done by the corresponding distances of the shut-off 27 to the hopper floor 30 and the shut-off elements 28.1 to 28.5 to each other.
  • the current in the outlet 26 is again torn apart by the flow divider 32. Since the mud is already very liquid here, it is also possible to split any remaining mud.
  • water nozzles direct corresponding water jets against the stream, ie also against the flow dividers 32.
  • the mixed impurity enters the sieve drum 15 and is there in particular sieved over the sedimentation tank 23.
  • Sieve material exits the screening jacket 20 and falls into the sedimentation tank 23, at the bottom of which a pumpable sump is formed.
  • this sump now only contains turbinable solids, so that it can be readily introduced into the water, which is fed to the turbines for power generation. From there, the water then enters the corresponding laxative rivers.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
EP09005898A 2008-04-28 2009-04-28 Procédé de nettoyage d'une structure hydrotechnique Withdrawn EP2113612A3 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102008021145 2008-04-28
DE102008053564 2008-10-28
DE102008062990A DE102008062990A1 (de) 2008-04-28 2008-12-23 Verfahren zum Reinigen eines hydrotechnischen Bauwerks

Publications (2)

Publication Number Publication Date
EP2113612A2 true EP2113612A2 (fr) 2009-11-04
EP2113612A3 EP2113612A3 (fr) 2011-02-23

Family

ID=40886154

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09005898A Withdrawn EP2113612A3 (fr) 2008-04-28 2009-04-28 Procédé de nettoyage d'une structure hydrotechnique

Country Status (2)

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EP (1) EP2113612A3 (fr)
DE (1) DE102008062990A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102174827A (zh) * 2011-03-25 2011-09-07 江苏铭科软件有限公司 一种疏浚集成监控系统
EP2520726A1 (fr) * 2011-05-06 2012-11-07 BRA turbo Ing AG Dispositif et procédé de prélèvement de dépôts de matériaux du réservoir d'une construction hydrotechnique
CN110952609A (zh) * 2019-12-12 2020-04-03 河南大有能源股份有限公司新安煤矿 一种沉淀水池清淤方法及清淤装置
CN111677041A (zh) * 2020-04-30 2020-09-18 向慧昌 一种水利工程用河道生态修复清淤装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014014009A1 (de) * 2014-09-25 2016-03-31 Dietrich Bartelt Verfahren zur künstlichen Erosion von Staugewässern
CN112127336B (zh) * 2020-07-28 2022-03-04 北京航天控制仪器研究所 一种清污型环保无人船采集处理装置
CN112343014B (zh) * 2020-10-14 2022-04-22 浙江大学 一种挡潮闸防淤装置及其方法
CN112604808B (zh) * 2020-12-02 2022-07-12 阜阳市国峰伟业粮油有限责任公司 一种水循环式面粉生产用糠皮过滤设备
CN117868072B (zh) * 2024-03-12 2024-05-07 济南市园林和林业科学研究院(济南市森林保护服务中心、济南市林木种质资源中心) 一种景观水面清理设备及其清理方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1634140A1 (de) 1967-02-24 1971-04-15 Polensky & Zoellner Staumauer und Verfahren zu ihrer Abdichtung
DE3122493A1 (de) 1981-06-05 1983-02-03 Evgenij Prokof'evič Moskva Gladkov Wasserablauf einer staumauer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8609272U1 (de) * 1986-04-05 1986-08-07 PS Förder- und Lagertechnik GmbH, 6800 Mannheim Schwimmgreiferbaggervorrichtung für Sand- und Kiesgewinnung
US5042178A (en) * 1990-04-13 1991-08-27 Dutra Bill T Apparatus and process for solid dredge material disposal
DE4110722A1 (de) * 1991-04-03 1992-12-10 Savilica Bulgaru System zur reinigung von see- und flussgruenden
DE9108952U1 (de) * 1991-07-20 1991-09-12 Rohr GmbH, 67166 Otterstadt Schwimmgreiferanlage für die Gewinnung von Sand und Kies
JP3467363B2 (ja) * 1996-02-09 2003-11-17 株式会社日立製作所 湖沼の浄化装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1634140A1 (de) 1967-02-24 1971-04-15 Polensky & Zoellner Staumauer und Verfahren zu ihrer Abdichtung
DE3122493A1 (de) 1981-06-05 1983-02-03 Evgenij Prokof'evič Moskva Gladkov Wasserablauf einer staumauer

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102174827A (zh) * 2011-03-25 2011-09-07 江苏铭科软件有限公司 一种疏浚集成监控系统
EP2520726A1 (fr) * 2011-05-06 2012-11-07 BRA turbo Ing AG Dispositif et procédé de prélèvement de dépôts de matériaux du réservoir d'une construction hydrotechnique
CH704904A1 (de) * 2011-05-06 2012-11-15 Bra Turbo Ing Ag Vorrichtung und Verfahren zur Entnahme von Material-Ablagerungen aus Gewässern.
CN110952609A (zh) * 2019-12-12 2020-04-03 河南大有能源股份有限公司新安煤矿 一种沉淀水池清淤方法及清淤装置
CN110952609B (zh) * 2019-12-12 2021-09-28 河南大有能源股份有限公司新安煤矿 一种沉淀水池清淤方法及清淤装置
CN111677041A (zh) * 2020-04-30 2020-09-18 向慧昌 一种水利工程用河道生态修复清淤装置

Also Published As

Publication number Publication date
EP2113612A3 (fr) 2011-02-23
DE102008062990A1 (de) 2009-11-05

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