EP0331012A1 - Dispositif pour l'aspiration et l'évacuation de sédiments fins d'un conteneur d'eau industrielle vers un collecteur de boues - Google Patents

Dispositif pour l'aspiration et l'évacuation de sédiments fins d'un conteneur d'eau industrielle vers un collecteur de boues Download PDF

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Publication number
EP0331012A1
EP0331012A1 EP89103183A EP89103183A EP0331012A1 EP 0331012 A1 EP0331012 A1 EP 0331012A1 EP 89103183 A EP89103183 A EP 89103183A EP 89103183 A EP89103183 A EP 89103183A EP 0331012 A1 EP0331012 A1 EP 0331012A1
Authority
EP
European Patent Office
Prior art keywords
piston
guide ring
working water
piston guide
stop
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.)
Granted
Application number
EP89103183A
Other languages
German (de)
English (en)
Other versions
EP0331012B1 (fr
Inventor
Werner Rutz
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.)
Herm J Hellmers GmbH
Original Assignee
Herm J Hellmers 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 Herm J Hellmers GmbH filed Critical Herm J Hellmers GmbH
Publication of EP0331012A1 publication Critical patent/EP0331012A1/fr
Application granted granted Critical
Publication of EP0331012B1 publication Critical patent/EP0331012B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
    • E03F7/10—Wheeled apparatus for emptying sewers or cesspools
    • E03F7/103—Wheeled apparatus for emptying sewers or cesspools with a tank featuring one or more partition walls
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
    • E03F7/10—Wheeled apparatus for emptying sewers or cesspools

Definitions

  • the invention relates to a device for extracting and removing fine deposits and also those with abrasive grain character from a working water space into a sludge receiving space of a cylindrical container according to the preamble of claim 1, in particular a sewer cleaning device in a sludge suction vehicle working according to the press water method (high pressure flushing).
  • a device for example from DE-OS 31 40 200.
  • Channels are generally high pressure flushed with significant amounts of water.
  • the water is taken from the working water space of a cylindrical container, which is usually designed as a horizontal axis boiler.
  • the working water space is protected by a piston in the cylinder drischer container is axially displaceable, separated from a sludge receiving space.
  • the piston can be non-positively and positively fixed in the cylindrical container, for example via mechanical stops or continuously by means of a pneumatically remotely controllable excess pressure in an inflatable seal against the inner container wall. Constructions of such pistons are known per se (for example DE-PS 27 46 199, DE-GM 87 03 019 and CH-PS 446 211).
  • the high-pressure flushing creates sludge or dirty water, which is mostly treated after being extracted from the sewer and fed into the sludge holding area and used again as working water.
  • the high-pressure flushing device In order for the high-pressure flushing device to operate properly, it must be ensured that the working water has the greatest possible degree of cleaning.
  • a pipeline runs along the outside of the boiler, from the lower area of the working water area to the upper area of the sludge receiving area. If a slide valve in the pipeline is opened, the negative pressure prevailing in the sludge receiving space sucks off working water with contaminants deposited on the floor.
  • Laying a line outside of the tank entails relatively high flow losses in the line and always sucks at a given point in the working water space. Deposits pushed together during the advancement of the piston may not be able to be detected. The fine deposit material is therefore not removed from the working water space with sufficient completeness.
  • the invention is therefore based on the object, the working water space of small deposits and also Keep deposits with abrasive grain character free so that the working water is as grain-free as possible and that the high-pressure flushing device functions properly.
  • the pipeline does not run along the outside of the container, but inside through the piston, preferably in the position according to claim 2.
  • the flow through the pipeline leads to entrainment of the deposits, which then get into the sludge-receiving space.
  • the stop is advantageously realized by locking bolts which are sufficient or sufficient and which can extend radially, through corresponding openings in the cylindrical container, or axially into the container, as a result of which a gradual axial fixing of the piston is made possible.
  • the cams are advantageously designed in a wedge shape to reliably generate the gap when the piston is displaced on one side in the direction of the working water space.
  • a valve which is remotely controlled by compressed air via a flexible line is advantageously used as a shutoff for the pipeline.
  • a small chamber can be formed near the container wall in the lower container part within the piston frame through the connecting parts, which are penetrated by the pipeline, which chamber is completed in the normal shifting operation and only when the cams engage the stop due to the gap formation has an inflow / outflow opening. This has a very positive influence on the flow conditions that influence the suction.
  • the variation in the axial distance of the suction opening of the pipeline from the disk can also increase the suction effect.
  • the piston can also be used to empty the cylindrical container and the volume can be divided in an individual and continuous manner by the piston acting as a partition.
  • the drawing shows a vertical longitudinal section and a partial section through the cylindrical container (1) of a mud suction vehicle of a sewer cleaning system.
  • the cylindrical container (1) contains a working water chamber (3) and a sludge receiving chamber (4), which are separated from each other by a longitudinally displaceable and locally lockable piston (2) which consists of a piston frame (5) with a curved disc (6) and a piston guide ring (7) and axial connecting parts (8) between them.
  • the working water chamber (3) is connected to the sludge receiving chamber (4) via a pipe (12), in which a shut-off valve (13) is located and which opens between the curved disc (6) and the piston guide ring (7) in the area of the lowest surface line of the cylinder inner wall , in connection.
  • the pipe (12) sits firmly on the piston, is moved together with it and is passed through the disc (6) so that it creates the aforementioned connection between the rooms (3) and (4) when the shut-off valve (13) is open.
  • the cylindrical container (1) is opened on the corresponding side. If there is a pressure gradient between the two working surfaces of the piston (2), which can be generated in particular by a pump, for example a vacuum pump, but also by opening one side, the pressure is shifted Piston (2) in the direction of the lower pressure, if this allows the frictional relationships between the circumference of an outer ring (9) of the piston (2) and the cylinder inner wall and the piston does not touch a stop (10) in the form of two radial or disengageable locking bolt.
  • a pressure gradient between the two working surfaces of the piston (2) which can be generated in particular by a pump, for example a vacuum pump, but also by opening one side, the pressure is shifted Piston (2) in the direction of the lower pressure, if this allows the frictional relationships between the circumference of an outer ring (9) of the piston (2) and the cylinder inner wall and the piston does not touch a stop (10) in the form of two radial or disengageable locking bolt.
  • an overpressure is generated in a ring-shaped hollow chamber (14) in the outer ring (9), which is remotely controlled from the control room, via a flexible line (15) that corresponds to the circumferential geometry of the outer ring (9) greatly changed that at the same time a secure sealing of the working water space (3), which also includes the space between the curved disc (6) and the piston guide ring (7), against the sludge receiving space (4) and on the other hand an axial displacement of the piston (2) is possible.
  • the hollow chamber (14) can also be pressurized so that the piston (2) is thereby fixed to the inner wall of the cylinder.
  • the cylindrical container (1) can be divided into different partial volumes continuously and individually with the axially displaceable piston (2) with appropriate adjustment of the outer ring (9). However, it is also possible to do this division discontinuously.
  • the piston (2) is then initially fixed with the help of the outer ring (9) and is only released after a certain limit pressure difference between the working water chamber (3) and the sludge receiving chamber (4) is exceeded, in order to then shift in the direction of the lower pressure. After a certain axial displacement, a selected position can be non-positively fixed by pressurizing the hollow chambers (14) of the outer ring (9) via the flexible line (15).
  • the cleaning of the working water space (3) is initiated in that the entire piston (2) is axially displaced as a result of a pressure gradient generated by a pump, for example a vacuum pump, thereby reducing the volume of the working water space (3) until a selected point further rectified displacement of the piston (2) is prevented by the bolt-shaped stop (10).
  • a pump for example a vacuum pump
  • On the piston guide ring (7) of the piston (2) are seated wedge-shaped cams (11) with a transverse cam surface that slants axially away from the piston guide ring (7) Raising the piston guide ring (7) leads such that it touches the upper part of the container wall and at the deepest point of the container (1) there is a small gap x between the inner wall of the container and the piston guide ring (7).
  • An opposite axial displacement of the piston (2) is prevented by pressurizing the hollow chamber (14) of the outer ring (9) via the flexible line (15).
  • the suction can be repeated at several other axial positions within the cylindrical container (1).
  • the working water space (3) is cleaned of the smallest deposits and also of deposits with the character of abrasive grain in accordance with the task.
  • the great advantage of the device is that it does not hinder the high-pressure flushing of the sewer cleaning device. Only simple and low-wear machine elements are used.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Cleaning In General (AREA)
  • Sewage (AREA)
  • Treatment Of Sludge (AREA)
EP89103183A 1988-03-01 1989-02-23 Dispositif pour l'aspiration et l'évacuation de sédiments fins d'un conteneur d'eau industrielle vers un collecteur de boues Expired - Lifetime EP0331012B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3806545A DE3806545A1 (de) 1988-03-01 1988-03-01 Vorrichtung zur absaugung und abfuhr feiner ablagerungen aus einem arbeitswasserraum in einen schlammaufnahmeraum
DE3806545 1988-03-01

Publications (2)

Publication Number Publication Date
EP0331012A1 true EP0331012A1 (fr) 1989-09-06
EP0331012B1 EP0331012B1 (fr) 1991-12-11

Family

ID=6348521

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89103183A Expired - Lifetime EP0331012B1 (fr) 1988-03-01 1989-02-23 Dispositif pour l'aspiration et l'évacuation de sédiments fins d'un conteneur d'eau industrielle vers un collecteur de boues

Country Status (3)

Country Link
EP (1) EP0331012B1 (fr)
DE (2) DE3806545A1 (fr)
DK (1) DK171749B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10025645C2 (de) * 2000-05-24 2002-04-04 Kutschke Fahrzeugbau Gmbh Behälter für ein Reinigungsfahrzeug

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB484716A (en) * 1936-11-13 1938-05-10 Dennis Brothers Ltd Sludge containers, particularly for use with mechanical gulley-emptying apparatus
EP0075603A1 (fr) * 1981-09-21 1983-04-06 GABLER GmbH & Co., KG. Dispositif pour le nettoyage de canalisations d'égouts et pour l'aspiration de boues
DE3140200A1 (de) * 1981-10-09 1983-04-28 Herm. J. Hellmers Gmbh, 2000 Hamburg "kanalreinigungsfahrzeug"
DE8703019U1 (de) * 1987-02-27 1987-05-27 Wiedemann, Karl, 86465 Welden Vorrichtung zur Aufnahme von Schüttgut

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT257481B (de) * 1966-02-02 1967-10-10 Josef Kaiser Fahrzeugwerk Behältnis zur Aufnahme von unter Druck stehenden Flüssigkeiten und/oder Gasen
DE2746199C2 (de) * 1977-10-14 1986-09-04 Fa. Friedrich Küller, 5600 Wuppertal Behälter zur Aufnahme von Schlamm o.dgl.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB484716A (en) * 1936-11-13 1938-05-10 Dennis Brothers Ltd Sludge containers, particularly for use with mechanical gulley-emptying apparatus
EP0075603A1 (fr) * 1981-09-21 1983-04-06 GABLER GmbH & Co., KG. Dispositif pour le nettoyage de canalisations d'égouts et pour l'aspiration de boues
DE3140200A1 (de) * 1981-10-09 1983-04-28 Herm. J. Hellmers Gmbh, 2000 Hamburg "kanalreinigungsfahrzeug"
DE8703019U1 (de) * 1987-02-27 1987-05-27 Wiedemann, Karl, 86465 Welden Vorrichtung zur Aufnahme von Schüttgut

Also Published As

Publication number Publication date
DK92489A (da) 1989-09-02
DK92489D0 (da) 1989-02-27
DE3806545C2 (fr) 1991-02-07
DK171749B1 (da) 1997-05-05
DE58900544D1 (de) 1992-01-23
DE3806545A1 (de) 1989-09-14
EP0331012B1 (fr) 1991-12-11

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