EP0367085A2 - Procédé et dispositif pour enlever des déchets d'une grille - Google Patents

Procédé et dispositif pour enlever des déchets d'une grille Download PDF

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Publication number
EP0367085A2
EP0367085A2 EP19890119798 EP89119798A EP0367085A2 EP 0367085 A2 EP0367085 A2 EP 0367085A2 EP 19890119798 EP19890119798 EP 19890119798 EP 89119798 A EP89119798 A EP 89119798A EP 0367085 A2 EP0367085 A2 EP 0367085A2
Authority
EP
European Patent Office
Prior art keywords
rake
screen
screenings
grate
apron
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Withdrawn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
EP19890119798
Other languages
German (de)
English (en)
Other versions
EP0367085A3 (fr
Inventor
Bertram Dipl.-Ing. Botsch
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.)
Botsch Bertram Dipl-Ing
Original Assignee
Maschinenfabrik Hellmut Geiger GmbH and Co KG
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 Maschinenfabrik Hellmut Geiger GmbH and Co KG filed Critical Maschinenfabrik Hellmut Geiger GmbH and Co KG
Publication of EP0367085A2 publication Critical patent/EP0367085A2/fr
Publication of EP0367085A3 publication Critical patent/EP0367085A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • E02B8/023—Arresting devices for waterborne materials
    • E02B8/026—Cleaning devices

Definitions

  • the invention relates to a method and a device for conveying screenings on a screen grate partially submerged in a wastewater flow, inclined in the direction of flow, optionally with a subsequent screen apron, to a discharge point located at the upper edge of the screen grate or screen apron with the aid of a periodic engagement movement rake device engaging between the bars of the screen grate, by means of which the screenings are periodically piled up along a conveyor line.
  • Such a device is used for the removal and removal of screenings from the waste water.
  • the screenings held on the screen grate are periodically guided from bottom to top by a rake device along a conveyor line.
  • the entire length of the conveyor line is given by the length of the rack and by the length of the subsequent apron.
  • the drive period is determined by the length of the conveying path and the conveying speed. Since the conveying speed cannot be increased beyond a given amount, the drive period becomes very long, especially in the case of long conveying distances, and this also results in an increase in the amount of screenings to be conveyed, which has accumulated on the screen grate within this drive period.
  • the invention is based on the task, when using a rake device of the type described at the outset, to significantly shorten the drive period of the engagement movement.
  • a corresponding device is constructed according to the invention in such a way that at least two rake parts which are arranged at a distance in the conveying direction and are connected to one another by a common movement drive are provided, which simultaneously perform translatory movements in the same direction.
  • the screenings are transported in a drive period only over relatively short conveyor sections of the screen grate or the apron, with rake parts coupled to one another taking over the screenings from the preceding conveyor section and transporting them within a drive period.
  • the entire deflection movement of the rake device is significantly less, so that loose cables are possible as energy supply to the drive elements. This is particularly advantageous for rough operation in sewage treatment plants.
  • an extension or shortening of the conveyor line is possible through multiple use of standardized components that correspond to a single conveyor section length. Components of this type can then be assembled to form a longer or shorter carrying element, which is connected to a common drive unit, in accordance with the total conveying length in each case.
  • the rake parts are advantageously arranged at the same distance in the conveying direction.
  • the distance between the rake parts can expediently be smaller than the length of the inclined parts Screen grate projected water depth.
  • a further advantage can possibly be achieved in that the screen grate and / or the screen apron are step-shaped and have at least one settling step in such a way that the screenings are piled up from one rake section to this settling step and are picked up from there by the next rake section for further conveyance .
  • reversing guide parts for the transition from the linear road section to the other road section are arranged on the end sections of the closed roadway.
  • the inclination of the screen grate with respect to the vertical direction, viewed in the direction of flow, is expediently 10-50 °, preferably 15-30 °.
  • the invention is of particular importance for the clearing of steeply standing gratings.
  • An additional advantage may be achieved in that additional grating bars are also attached to the surface of the flat apron. This can increase the adhesion of the screenings.
  • the screen grate bars and / or the subsequent screen apron can expediently be designed to overlap. This results in settling steps in the area of the slightly overlapping sections of the conveyor lines.
  • These support elements that can be driven over can be designed in various ways, depending on whether they are located in the area of the grating or in the adjacent area of the computing apron.
  • the support elements which can be driven over can advantageously be pivotable holding flaps which extend at least over part of the conveying path and which are urged into the pivoting-out position under spring preload.
  • the width of the holding flaps can advantageously be the entire conveying width. This training is particularly useful in the area of the apron.
  • the holding flaps can expediently have an arc-shaped extension part and thus form a support surface.
  • Another configuration which may be expedient for the area of the grate can provide swiveling fingers which engage between the bars of the grate and which are urged into the swiveled-out position under spring preload. These support elements which can be driven over form an essential safeguard against the already conveyed screenings from slipping back.
  • the rake parts on the common support element are usually arranged inclined in the conveying direction, it has been shown by investigations that an improvement can possibly be achieved at certain angular positions of the rake grate by arranging the rake parts on the common support element inclined against the conveying direction.
  • the shapes of the rake parts that are connected to one another and have a common movement drive can also be designed differently according to the requirements of the conveyor section you are serving.
  • the rake parts engaging between the bars of the screen grate can be formed in a finger-like manner next to one another, it appears expedient to move the rakes above the screen grate on the apron form parts in the form of squeegees or the like.
  • FIG. 1 shows the typical structure of a computer system using the device for conveying screenings according to the invention.
  • a sewage flow 5 flows in a channel 1. Between the channel zone 2 and the operating corridor 3 there is a grate 6 which projects beyond the operating corridor 3 and whose upper edge forms the discharge point.
  • the screenings 10 contained in the wastewater flow are deposited on the screen grate 6 and are conveyed to the discharge point by the transport device. The screenings then arrive at the discharge point in discarded portions 12 in a container 14 and form an intermediate screenings storage 13 which can be removed.
  • the transport device consists of a support element 20 connected to a movement drive, not shown in the drawing, to which two rake parts 21, 22 are attached.
  • the support element 20, which is composed of spars in a frame-like manner, carries out a play of movement along the grate 6 upwards and away from it, the support element 20 and the bottom rake part 21 shown here taking up positions a, b and c one after the other.
  • the bottom rake part 21 conveys the screenings 10 deposited on the screen grate 6 up to the uppermost position 21a of the rake part 21 and brings the screenings conveyed into the intermediate position 11.
  • the carrying element 20 with the rake parts 21, 22 swings down again in its movement play and conveys the next portion of screenings to the same place in the same way.
  • the lowest rake part 21 carries out the described sequence of movements
  • the second lowest rake part 22 simultaneously grips the screenings deposited by the lowest rake part 21 from the positions 11 and leads it up to the drop position.
  • This second lowermost rake part 22 also performs a similar play to movement as the lowermost rake part 21, since both are rigidly fastened to the carrying element 20 and are guided through its movement sequence.
  • the entire conveyor section 24 is divided into two sections. The distance 23 of the rake parts 21, 22 must be smaller than the movement to achieve the desired takeover.
  • the movement play of the bottom rake part 21 in its upper end position extends beyond the water level 4, so that the position 11 of the screenings is also above the water level 4. In other installation conditions, position 11 can also be below water level 4. Depending on the type of screenings and grate bars, the screenings can remain in position 11 until they are gripped by the second lowest rake part 22.
  • the immersion length of the rack is indicated at position 25.
  • FIG. 2 a step-like design of three grating parts 7, 8, 9, which overlap in their end sections, is shown, to which a flat computing apron 26 is connected.
  • the design of the support element and the rake parts correspond analogously to the design according to FIG. 1.
  • the entire length of the conveyor is divided into four sections, and therefore four are equivalent to provide trained rake parts on a common support element.
  • the screenings conveyed are deposited by these rake parts at the end of their travel routes on one level, picked up by the following rake parts and conveyed to the next level.
  • FIG. 3 shows a screen grate composed of two screen grate parts 31, 32, which is followed by a flat screen apron 33.
  • finger-shaped rake parts 30, 35, 36 are provided on support bars 34 for engaging in the rake grate parts 31, 32, while strip-shaped rake parts 37, 38 are used for transporting the rake on the flat rake apron 33.
  • strip-shaped rake parts 37, 38 are also rigidly fastened to the support bars 34.
  • the movement of the support bars 34 and the rake parts 30, 35-38 connected to them is effected by a drive unit 39, which moves in a closed loop-shaped guideway 40.
  • the drive unit 39 is driven by an electric motor 46 and thereby moves on the closed guideway 40.
  • This guideway 40 has two linear road sections and semicircular road sections running parallel to the grating or apron apron to reverse guidance.
  • the carrying spars 34 with the rake parts 30, 35-38 are guided in a linear upward movement until the end sections of the individual conveying sections are reached, are lifted off the surface of the grating or the apron when entering the upper reversing guide part and in a linear downward movement into the Starting position returned where, when the lower reversing guide part is reached, the support bars 34 and the rake parts 30, 35-38 are lowered again for engaging in the rack or for transport within the individual conveyor lines.
  • support elements 41, 42 that can be driven over are provided. As can be seen in the detailed view in FIG. 4, these consist of a strip part 43 with an attached arc-shaped extension part 44 and are pushed into the pivoted-out position shown by tension springs 45, which apply the spring preload. In the swiveled-out position, the outer surface of the arcuate extension 44 forms a support against the sliding back of screenings which have already been conveyed.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chain Conveyers (AREA)
  • Sewage (AREA)
EP89119798A 1988-10-31 1989-10-25 Procédé et dispositif pour enlever des déchets d'une grille Withdrawn EP0367085A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3836983 1988-10-31
DE3836983 1988-10-31
DE3933462 1989-10-06
DE3933462A DE3933462A1 (de) 1988-10-31 1989-10-06 Verfahren und vorrichtung zum foerdern von rechengut

Publications (2)

Publication Number Publication Date
EP0367085A2 true EP0367085A2 (fr) 1990-05-09
EP0367085A3 EP0367085A3 (fr) 1990-08-22

Family

ID=25873770

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89119798A Withdrawn EP0367085A3 (fr) 1988-10-31 1989-10-25 Procédé et dispositif pour enlever des déchets d'une grille

Country Status (4)

Country Link
US (1) US5171436A (fr)
EP (1) EP0367085A3 (fr)
JP (1) JPH02186006A (fr)
DE (1) DE3933462A1 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5552044A (en) * 1991-07-15 1996-09-03 Abel; Gunther Apparatus for separating solid material and liquid
US5268100A (en) * 1992-02-06 1993-12-07 Kirk Hartzell Manure separator
US5534140A (en) * 1994-03-17 1996-07-09 Envirex, Inc. Bar screen having compound fine screen bar rack
US5573659A (en) * 1994-05-04 1996-11-12 Johnson, Jr.; Ronald L. Filter apparatus
US5571406A (en) * 1995-05-17 1996-11-05 Mensching; Herman E. Roving bar screen
DE19535901C1 (de) * 1995-09-27 1997-01-23 Passavant Werke Verfahren zum störungsfreien Reinigen von Stabrechen
US6016920A (en) * 1997-02-03 2000-01-25 Meurer Industries, Inc. Programmed method of and apparatus for screening debris
US6010013A (en) * 1997-02-03 2000-01-04 Meurer Industries, Inc. Universal method of and apparatus for screening debris
US6614584B1 (en) 2000-02-25 2003-09-02 Lambda Physik Ag Laser frequency converter with automatic phase matching adjustment
US6608852B2 (en) 2000-08-25 2003-08-19 Lameda Physik Ag Gain module for diode-pumped solid state laser and amplifier
NZ513378A (en) * 2001-08-07 2004-03-26 Power Glides Screens Ltd Suspension screen raking system with spaced longitudinal rakes reciprocating for reduced ltravel
US20040108263A1 (en) * 2002-08-19 2004-06-10 Tangeman Andrew F. Liquid - solids separator
WO2007124297A1 (fr) * 2006-04-21 2007-11-01 Contech Stormwater Solutions Inc. Système de traitement des eaux de pluie avec détection automatique de l'accumulation de polluants
CA2761922C (fr) * 2011-12-13 2015-09-01 Trecan Combustion Limited Appareil et methode de retrait de sediments continu
US9637880B2 (en) 2015-05-12 2017-05-02 Trecan Combustion Limited Continuous sediment removal apparatus and method
CN110642466A (zh) * 2019-09-29 2020-01-03 吴远光 一种农村生活污水治理方法
CN111686523A (zh) * 2020-06-24 2020-09-22 吴剑荣 一种仿贝类鳞片式三通过滤管
US11633680B2 (en) * 2020-07-23 2023-04-25 Parkson Corporation Bar screen filter apparatus and method

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NL60079C (fr) *
NL106380C (fr) *
US710804A (en) * 1902-03-26 1902-10-07 Joseph G Riel Device for clearing flume-gratings.
US1180798A (en) * 1915-04-17 1916-04-25 William L Spoon Screen for flowing water.
US2684157A (en) * 1949-02-15 1954-07-20 Jeffrey Mfg Co Bar screening apparatus for flowing streams of water and the like
US2668614A (en) * 1950-03-30 1954-02-09 American Can Co Adjusting mechanism for feed dogs on conveyers
US2696308A (en) * 1951-07-05 1954-12-07 Warren S Martin Screening apparatus
US3144406A (en) * 1960-02-16 1964-08-11 Galion Jeffrey Mfg Co Wiper mechanism for screning apparatus
US3018893A (en) * 1960-04-25 1962-01-30 Robert M Collie Mechanical trash rake
DE1239633B (de) * 1964-05-20 1967-04-27 Waggonfabrik Jos Rathgeber A G Greiferrechen
DE1658096B2 (de) * 1967-10-06 1976-12-09 Maschinenfabrik Hellmut Geiger, 7500 Karlsruhe Rechenreiniger
FR2233855A5 (en) * 1973-06-14 1975-01-10 Dumont Et Cie C Rake for removing debris from water - reciprocates over grille under control of an eccentric chain driven arm
DE2554274A1 (de) * 1975-12-03 1977-06-16 Gewerk Eisenhuette Westfalia Foerderer, insbesondere zur haufwerksfoerderung in bergbaubetrieben
US4329230A (en) * 1980-05-12 1982-05-11 Quin Michael J Conveyor system
DE3032986A1 (de) * 1980-09-02 1982-03-11 Dambach-Industrieanlagen Gmbh, 7560 Gaggenau Rechenreiniger fuer einen rechen in einem gerinne o.dgl.
US4709804A (en) * 1985-10-07 1987-12-01 Duperon Corporation Self-cleaning trash rack

Also Published As

Publication number Publication date
JPH02186006A (ja) 1990-07-20
EP0367085A3 (fr) 1990-08-22
DE3933462A1 (de) 1990-05-03
US5171436A (en) 1992-12-15

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