EP2151529A2 - Method for cleaning sewers - Google Patents

Method for cleaning sewers Download PDF

Info

Publication number
EP2151529A2
EP2151529A2 EP09009197A EP09009197A EP2151529A2 EP 2151529 A2 EP2151529 A2 EP 2151529A2 EP 09009197 A EP09009197 A EP 09009197A EP 09009197 A EP09009197 A EP 09009197A EP 2151529 A2 EP2151529 A2 EP 2151529A2
Authority
EP
European Patent Office
Prior art keywords
water
channel section
cleaned
sewer cleaning
cleaning device
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
EP09009197A
Other languages
German (de)
French (fr)
Other versions
EP2151529B1 (en
EP2151529A3 (en
Inventor
Kurt Hörger
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.)
KEG Kanalreinigungstechnik GmbH
Original Assignee
KEG Kanalreinigungstechnik 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 KEG Kanalreinigungstechnik GmbH filed Critical KEG Kanalreinigungstechnik GmbH
Publication of EP2151529A2 publication Critical patent/EP2151529A2/en
Publication of EP2151529A3 publication Critical patent/EP2151529A3/en
Application granted granted Critical
Publication of EP2151529B1 publication Critical patent/EP2151529B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F9/00—Arrangements or fixed installations methods or devices for cleaning or clearing sewer pipes, e.g. by flushing

Definitions

  • the present invention relates to a method for channel cleaning with a hydrodynamic sewer cleaning device, wherein in a channel section to be cleaned, the sewer cleaning device pressurized with hot water and is moved forward by the repulsive force of the resulting water jet and thereby dissolves impurities, and then the sewer cleaning device is retracted and the impurities are flushed back with the water jet and removed in the form of dirty water from the channel section.
  • the generic method is, for example, from the DE 196 07 913 A1 known. It is used to clean pipes and channels, especially sewers. For this purpose, sewer cleaning vehicles are used, as they are, for example, in the WO 2004/111355 A1 are described.
  • sewer cleaning vehicles are in many cases equipped with a water treatment device. This is an attempt to clean the collected dirty water so far that it can be used again as process water.
  • sewer cleaning vehicles are very expensive to construct and therefore very expensive.
  • the cleaning result of dirty water to service water is often unsatisfactory. Therefore, fresh water is often used, so that the water consumption increases sharply.
  • the object of the present invention is to develop a generic method so that the water consumption is limited with the least possible effort.
  • the solution consists in a method having the features of claim 1. According to the invention it is provided that the service water is removed from an already cleaned or still to be cleaned channel section.
  • a hydrodynamic sewer cleaning device is understood to mean a throughflow part which has a water connection as a pressure water inlet opening and associated recoil openings arranged at its rear end. Due to the repulsive force of the water, the sewer cleaning device experiences an advancing movement in the pipe or channel. Examples of such sewer cleaning devices are so-called sole cleaners and sewer cleaning nozzles (cf. DE 196 07 913 A1 ).
  • no water treatment device for the collected dirty water is more needed, so that the equipment and the cost of the sewer cleaning are significantly reduced. Nevertheless, no fresh water supply to operate the sewer cleaning device is necessary.
  • the required service water can, even in the immediate vicinity of the channel section to be cleaned, an already cleaned or still to be cleaned channel section of the same channel or another already cleaned channel can be removed.
  • the absorbed water is relatively clean and therefore suitable as process water.
  • any remaining dirt and suspended matter have settled at the bottom of the channel.
  • impurities or flowing water is clean enough to serve as service water can. Only in the course of cleaning the relevant section of the channel with a sewer cleaning device that is standing over the impurities or flowing water so strongly swirled with mud and dirt that it is no longer suitable for use as process water.
  • the known water treatment facilities in the relatively short time available are not able to process the mechanically practically inseparable mixture of mud and water.
  • the process according to the invention is surprisingly simple for a person skilled in the art to realize without problems and cost-effective. That for the operation
  • the service water required by the sewer cleaning device can be accommodated in the immediate vicinity of the channel section to be cleaned so that long journeys to reservoirs, wells or other tapping points interrupting the cleaning process are eliminated.
  • the inventive method is advantageously realized with a common sewer cleaning vehicle, which is equipped with a hot water tank.
  • the barrier may, for example, be designed as an overflow barrier ("bypass") in order to be able to control the amount of dammed up water.
  • the transferred into the hot water tank, taken from a suitable channel section water is used as process water for operating the sewer cleaning device. It is expedient to pass this water through a sand and / or sludge and / or through a sieve to the high-pressure pump and from there to the sewer cleaning device. This will easily remove any dirt or sludge particles that could disturb the operation of the high-pressure pump.
  • FIG. 1 schematically shows a sewer cleaning vehicle 10.
  • the sewer cleaning vehicle 10 is in the exemplary embodiment next to a manhole 22, which leads to a cleanable channel portion 21 of a channel 20, in the embodiment of an underground sewer.
  • the sewer cleaning vehicle 10 is equipped in a conventional manner with a fresh water tank 11 and a dirty water tank 12, which are received in the embodiment in a common container.
  • the fresh water tank 11 is equipped with a service water pipe 16 for receiving service water or fresh water. From the fresh water tank 11, the hot water by means of a high-pressure pump (not shown) through a pressurized water hose 13 to a connected thereto sewer cleaning device 14 (in FIG. 1 shown as sole cleaner).
  • the sewer cleaning device 14 is moved forward by being exposed to the pressurized water and the resulting repulsive force of the water jet emerging at the rear end of the sewer cleaning device 14 in the direction of the arrow A in the channel section 21 to be cleaned.
  • impurities 30 present in the channel section 21 are loosened.
  • the sewer cleaning device 14 is retracted in the direction of the manhole 22.
  • the settled impurities 30 are also flushed back through the emerging from the sewer cleaning device 14 water jet in the direction of the manhole 22, thereby fluidized and mixed with the water of the water jet.
  • the mixture is drawn in the form of dirty water, ie mixed with dirt and sludge water, possibly with coarser impurities 30 'via a suction line 15 into the dirty water tank 12.
  • the inventive method is schematically in FIG. 2 shown.
  • the direction of flow of the water in the channel 20 in the direction of a sewage treatment plant is indicated by an arrow B.
  • a channel section 21 is freed from contaminants 30, using as a channel cleaning device 14 now a sewer cleaning nozzle is shown.
  • the service water supply which serves to operate the sewer cleaning device 14
  • the sewer cleaning device 14 and the suction line 15 are pulled out of the channel section 21 to be cleaned.
  • the sewer cleaning vehicle 10 is moved to another manhole 22 '.
  • the manhole 22 ' leads to an already cleaned channel section 23 of that channel 20, to which the channel section 21 to be cleaned also belongs.
  • a manhole can be selected, which leads to a channel section of another channel.
  • the service water can also be taken from a channel section still to be cleaned, since the water standing above the impurities or flowing but not yet entangled with dirt and sludge is suitable for use as process water.
  • the already flowing in the channel section 23 flowing water is relatively clean after cleaning.
  • enough time has elapsed since the cleaning of this channel section 23 that residual dirt particles could sediment at the bottom of the channel section 23.
  • the supernatant, relatively clean water is received by means of the hot water line 16 and passed into the fresh water tank 11. This can be done, for example, in a manner known per se with the aid of the high-pressure pump or a vacuum pump or an injector system (for example a jet pump generating an overpressure). Possibly. can be preceded by a suitable sufficiently large sieve to retain coarse dirt.
  • the channel sections 21 and 23 are expediently separated by means of a barrier 17, in the exemplary embodiment of an overflow barrier, so that the water flowing in the channel section 23 in the direction of arrow B accumulates and the uptake of service water is facilitated.
  • This process can be associated with the progressive cleaning of the channel 20 at any manholes connected to already cleaned or still to be cleaned channel sections are, as often repeated, usually until the capacity of the sewer cleaning vehicle 10 is exhausted for dirty water.
  • FIG. 3 shows an embodiment in which the fresh water tank 11 and the waste water tank 12 are received in a common container and separated by a sliding partition 18.
  • the partition wall 18 serves to keep the volumes of the tanks variable and to adapt to the needs of the individual case.
  • the process water obtained by the method according to the invention can flow out of the fresh water tank 11 through a discharge funnel 19 for operating a sewer cleaning device 14. Since the process water in the fresh water tank 11 residues 30 "may contain dirt and suspended particles, the process water is conveniently passed into a known sand and / or sludge 24 in which these residues of dirt and suspended particles as sediments 30"' drop. Subsequently, the process water can still be passed through a sufficiently sized screen 25 to remove the last interfering particles. The process water thus treated is supplied via a high pressure pump 26 to the sewer cleaning device 14. This final, mechanically simple and inexpensive treatment of the process water obtained from the waste water ensures the undisturbed operation of the high-pressure pump.

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)

Abstract

The method involves supplying a hydrodynamic sewer cleaning device (14) with industrial water under pressure in a sewer section (21) to be cleaned, where the sewer cleaning device is moved forwards by a repulsive force of the resulting water jet for dissolving impurities (30). The impurities are flushed with the water jet and removed from the sewer section in the form of industrial waste water after the sewer cleaning device is pulled-out. The water is taken-out from a cleaned sewer section or the sewer section to be cleaned.

Description

Die vorliegende Erfindung betrifft ein Verfahren zur Kanalreinigung mit einem hydrodynamischen Kanalreinigungsgerät, wobei in einem zu reinigenden Kanalabschnitt das Kanalreinigungsgerät mit Brauchwasser unter Druck beaufschlagt und durch die Rückstoßkraft des resultierenden Wasserstrahls vorwärts bewegt wird und dabei Verunreinigungen löst, und wobei anschließend das Kanalreinigungsgerät zurückgezogen wird und dabei die Verunreinigungen mit dem Wasserstrahl zurück gespült und in Form von Schmutzwasser aus dem Kanalabschnitt entfernt werden.The present invention relates to a method for channel cleaning with a hydrodynamic sewer cleaning device, wherein in a channel section to be cleaned, the sewer cleaning device pressurized with hot water and is moved forward by the repulsive force of the resulting water jet and thereby dissolves impurities, and then the sewer cleaning device is retracted and the impurities are flushed back with the water jet and removed in the form of dirty water from the channel section.

Das gattungsgemäße Verfahren ist bspw. aus der DE 196 07 913 A1 bekannt. Es dient zum Reinigen von Rohren und Kanälen, insbesondere Abwasserkanälen. Hierfür werden Kanalreinigungsfahrzeuge verwendet, wie sie bspw. in der WO 2004/111355 A1 beschrieben sind.The generic method is, for example, from the DE 196 07 913 A1 known. It is used to clean pipes and channels, especially sewers. For this purpose, sewer cleaning vehicles are used, as they are, for example, in the WO 2004/111355 A1 are described.

Die Kanalreinigungsfahrzeuge sind in vielen Fällen mit einer Wasseraufbereitungseinrichtung ausgestattet. Damit wird versucht, das aufgenommene Schmutzwasser so weit zu reinigen, dass es wieder als Brauchwasser eingesetzt werden kann. Derartige Kanalreinigungsfahrzeuge sind jedoch sehr aufwändig konstruiert und daher sehr kostspielig. Darüber hinaus ist das Reinigungsergebnis von Schmutzwasser zu Brauchwasser oft unbefriedigend. Daher wird häufig auf Frischwasser zurückgegriffen, so dass der Wasserverbrauch stark ansteigt.The sewer cleaning vehicles are in many cases equipped with a water treatment device. This is an attempt to clean the collected dirty water so far that it can be used again as process water. However, such sewer cleaning vehicles are very expensive to construct and therefore very expensive. In addition, the cleaning result of dirty water to service water is often unsatisfactory. Therefore, fresh water is often used, so that the water consumption increases sharply.

Die Aufgabe der vorliegenden Erfindung besteht darin, ein gattungsgemäßes Verfahren so weiterzuentwickeln, dass der Wasserverbrauch mit möglichst wenig Aufwand begrenzt wird.The object of the present invention is to develop a generic method so that the water consumption is limited with the least possible effort.

Die Lösung besteht in einem Verfahren mit den Merkmalen des Patentanspruchs 1. Erfindungsgemäß ist vorgesehen, dass das Brauchwasser aus einem bereits gereinigten oder noch zu reinigenden Kanalabschnitt entnommen wird.The solution consists in a method having the features of claim 1. According to the invention it is provided that the service water is removed from an already cleaned or still to be cleaned channel section.

Unter einem hydrodynamischen Kanalreinigungsgerät wird im Zusammenhang mit der vorliegenden Erfindung ein Durchströmteil verstanden, das einen Wasseranschluss als Druckwassereintrittsöffnung und damit verbundene, an seinem hinteren Ende angeordnete Rückstoßöffnungen aufweist. Durch die Rückstoßkraft des Wassers erfährt das Kanalreinigungsgerät im Rohr oder Kanal eine Vorschubbewegung. Beispiele für derartige Kanalreinigungsgeräte sind so genannte Sohlenreiniger sowie Kanalreinigungsdüsen (vgl. DE 196 07 913 A1 ).In the context of the present invention, a hydrodynamic sewer cleaning device is understood to mean a throughflow part which has a water connection as a pressure water inlet opening and associated recoil openings arranged at its rear end. Due to the repulsive force of the water, the sewer cleaning device experiences an advancing movement in the pipe or channel. Examples of such sewer cleaning devices are so-called sole cleaners and sewer cleaning nozzles (cf. DE 196 07 913 A1 ).

Mit dem erfindungsgemäßen Verfahren wird keine Wasseraufbereitungseinrichtung für das aufgenommene Schmutzwasser mehr benötigt, so dass der apparative Aufwand und die Kosten für die Kanalreinigung deutlich reduziert werden. Dennoch ist keine Frischwasserzufuhr zum Betrieb des Kanalreinigungsgeräts notwendig. Das benötigte Brauchwasser kann, auch in unmittelbarer Nachbarschaft des zu reinigenden Kanalabschnitts, einem bereits gereinigten oder noch zu reinigenden Kanalabschnitt desselben Kanals oder auch einem anderen bereits gereinigten Kanal entnommen werden.With the method according to the invention no water treatment device for the collected dirty water is more needed, so that the equipment and the cost of the sewer cleaning are significantly reduced. Nevertheless, no fresh water supply to operate the sewer cleaning device is necessary. The required service water can, even in the immediate vicinity of the channel section to be cleaned, an already cleaned or still to be cleaned channel section of the same channel or another already cleaned channel can be removed.

In beiden Fällen ist das aufgenommene Wasser vergleichsweise sauber und somit als Brauchwasser geeignet. In einem bereits gereinigten Kanalabschnitt haben sich, aufgrund des zeitlichen Abstands zum bereits erfolgten Reinigungsvorgang, die ggf. verbleibenden Schmutz- und Schwebstoffe am Boden des Kanals abgesetzt. Bei einem noch zu reinigenden Kanalabschnitt hat sich für den Fachmann überraschend herausgestellt, dass das über den im Kanalabschnitt abgesetzten Verunreinigungen stehende bzw. fließende Wasser sauber genug ist, um als Brauchwasser dienen zu können. Erst im Zuge der Reinigung des betreffenden Kanalabschnitts mit einem Kanalreinigungsgerät wird das über den Verunreinigungen stehende bzw. fließende Wasser so stark mit Schlamm und Schmutz verwirbelt, dass es zur Verwendung als Brauchwasser nicht mehr geeignet ist.In both cases, the absorbed water is relatively clean and therefore suitable as process water. In an already cleaned channel section, due to the time interval to the already performed cleaning process, any remaining dirt and suspended matter have settled at the bottom of the channel. In a still to be cleaned channel section has surprisingly been found by those skilled in the art that standing over the sedimented in the channel section impurities or flowing water is clean enough to serve as service water can. Only in the course of cleaning the relevant section of the channel with a sewer cleaning device that is standing over the impurities or flowing water so strongly swirled with mud and dirt that it is no longer suitable for use as process water.

Im Gegensatz hierzu sind die bekannten Wasseraufbereitungseinrichtungen in der relativ kurzen zur Verfügung stehenden Zeit nicht in der Lage, die mechanisch praktisch untrennbare Mischung aus Schlamm und Wasser aufzubereiten. Das erfindungsgemäße Verfahren ist für den Fachmann überraschend einfach, problemlos zu realisieren und kostengünstig. Das für den Betrieb des Kanalreinigungsgeräts benötigte Brauchwasser kann in unmittelbarer Nachbarschaft zum zu reinigenden Kanalabschnitt aufgenommen werden, so dass den Reinigungsprozess unterbrechende lange Fahrten zu Vorratsbehältern, Brunnen oder anderen Entnahmestellen entfallen.In contrast, the known water treatment facilities in the relatively short time available are not able to process the mechanically practically inseparable mixture of mud and water. The process according to the invention is surprisingly simple for a person skilled in the art to realize without problems and cost-effective. That for the operation The service water required by the sewer cleaning device can be accommodated in the immediate vicinity of the channel section to be cleaned so that long journeys to reservoirs, wells or other tapping points interrupting the cleaning process are eliminated.

Vorteilhafte Weiterbildungen ergeben sich aus den Unteransprüchen.Advantageous developments emerge from the subclaims.

Das erfindungsgemäße Verfahren wird zweckmäßigerweise mit einem gängigen Kanalreinigungsfahrzeug, das mit einem Brauchwassertank ausgerüstet ist, realisiert.The inventive method is advantageously realized with a common sewer cleaning vehicle, which is equipped with a hot water tank.

Es kann von Vorteil sein, zwischen zwei Kanalabschnitten eine Sperre einzurichten. Mit Hilfe einer solchen Sperre kann das im gesperrten Kanalabschnitt fließende Wasser aufgestaut werden, um die Entnahme von Brauchwasser zu erleichtern. Die Sperre kann bspw. als Überlaufsperre ("Bypass") ausgebildet sein, um die Menge des aufgestauten Wassers kontrollieren zu können.It may be advantageous to set up a lock between two channel sections. With the help of such a barrier, the water flowing in the blocked channel section can be dammed up to facilitate the removal of service water. The barrier may, for example, be designed as an overflow barrier ("bypass") in order to be able to control the amount of dammed up water.

Das in den Brauchwassertank überführte, aus einem geeigneten Kanalabschnitt entnommene Wasser wird als Brauchwasser zum Betreiben der Kanalreinigungseinrichtung verwendet. Dabei ist es zweckmäßig, dieses Wasser durch einen Sand- und/oder Schlammabscheider und/oder durch ein Sieb zur Hochdruckpumpe und von dort zum Kanalreinigungsgerät zu leiten. Damit werden verbliebene Schmutz- bzw. Schlammpartikel, die den Betrieb der Hochdruckpumpe stören könnten, auf einfache Weise entfernt.The transferred into the hot water tank, taken from a suitable channel section water is used as process water for operating the sewer cleaning device. It is expedient to pass this water through a sand and / or sludge and / or through a sieve to the high-pressure pump and from there to the sewer cleaning device. This will easily remove any dirt or sludge particles that could disturb the operation of the high-pressure pump.

Ein Ausführungsbeispiel der vorliegenden Erfindung wird im Folgenden anhand der beigefügten Zeichnungen näher beschrieben. Es zeigen in schematischer, nicht maßstabsgetreuer Darstellung:

Figur 1
ein Kanalreinigungsfahrzeug zur Durchführung des erfindungsgemäßen Verfahrens;
Figur 2
zwei Verfahrensschritte des erfindungsgemäßen Verfahrens;
Figur 3
ein Ausführungsbeispiel eines kombinierten Schmutzwasser-/Brauchwassertanks.
An embodiment of the present invention will be described below with reference to the accompanying drawings. Shown schematically, not to scale:
FIG. 1
a sewer cleaning vehicle for carrying out the method according to the invention;
FIG. 2
two process steps of the method according to the invention;
FIG. 3
an embodiment of a combined wastewater / service water tank.

Figur 1 zeigt schematisch ein Kanalreinigungsfahrzeug 10. Das Kanalreinigungsfahrzeug 10 steht im Ausführungsbeispiel neben einem Kanalschacht 22, der in einen zu reinigenden Kanalabschnitt 21 eines Kanals 20, im Ausführungsbeispiel eines unterirdischen Abwasserkanals, führt. Das Kanalreinigungsfahrzeug 10 ist in an sich bekannter Weise mit einem Frischwassertank 11 und einem Schmutzwassertank 12 ausgerüstet, die im Ausführungsbeispiel in einem gemeinsamen Behälter aufgenommen sind. Der Frischwassertank 11 ist mit einer Brauchwasserleitung 16 zur Aufnahme von Brauchwasser bzw. Frischwasser ausgerüstet. Aus dem Frischwassertank 11 wird das Brauchwasser mittels einer Hochdruckpumpe (nicht dargestellt) durch einen Druckwasserschlauch 13 zu einem daran angeschlossenen Kanalreinigungsgerät 14 geleitet (in Figur 1 als Sohlenreiniger dargestellt). Das Kanalreinigungsgerät 14 wird durch Beaufschlagung mit dem Druckwasser und die resultierende Rückstoßkraft des am hinteren Ende des Kanalreinigungsgeräts 14 austretenden Wasserstrahls in Richtung des Pfeils A im zu reinigenden Kanalabschnitt 21 vorwärts bewegt. Dadurch werden im Kanalabschnitt 21 vorhandene Verunreinigungen 30 gelockert. Im Anschluss wird das Kanalreinigungsgerät 14 in Richtung des Kanalschachts 22 zurückgezogen. Dabei werden die abgesetzten Verunreinigungen 30 durch den aus dem Kanalreinigungsgerät 14 austretenden Wasserstrahl ebenfalls in Richtung des Kanalschachts 22 zurück gespült, dabei aufgewirbelt und mit dem Wasser des Wasserstrahls vermischt. Die Mischung wird in Form von Schmutzwasser, d.h. mit Schmutz und Schlamm vermischtem Wasser, ggf. mit gröberen Verunreinigungen 30' über eine Saugleitung 15 in den Schmutzwassertank 12 gesaugt. FIG. 1 schematically shows a sewer cleaning vehicle 10. The sewer cleaning vehicle 10 is in the exemplary embodiment next to a manhole 22, which leads to a cleanable channel portion 21 of a channel 20, in the embodiment of an underground sewer. The sewer cleaning vehicle 10 is equipped in a conventional manner with a fresh water tank 11 and a dirty water tank 12, which are received in the embodiment in a common container. The fresh water tank 11 is equipped with a service water pipe 16 for receiving service water or fresh water. From the fresh water tank 11, the hot water by means of a high-pressure pump (not shown) through a pressurized water hose 13 to a connected thereto sewer cleaning device 14 (in FIG. 1 shown as sole cleaner). The sewer cleaning device 14 is moved forward by being exposed to the pressurized water and the resulting repulsive force of the water jet emerging at the rear end of the sewer cleaning device 14 in the direction of the arrow A in the channel section 21 to be cleaned. As a result, impurities 30 present in the channel section 21 are loosened. Subsequently, the sewer cleaning device 14 is retracted in the direction of the manhole 22. The settled impurities 30 are also flushed back through the emerging from the sewer cleaning device 14 water jet in the direction of the manhole 22, thereby fluidized and mixed with the water of the water jet. The mixture is drawn in the form of dirty water, ie mixed with dirt and sludge water, possibly with coarser impurities 30 'via a suction line 15 into the dirty water tank 12.

Das erfindungsgemäße Verfahren ist schematisch in Figur 2 dargestellt. Die Fließrichtung des Wassers im Kanal 20 in Richtung zu einer Kläranlage ist mit einem Pfeil B bezeichnet. Mittels des auf der linken Zeichnungsseite dargestellten Kanalreinigungsfahrzeugs10 wird, wie soeben beschrieben, ein Kanalabschnitt 21 von Verunreinigungen 30 befreit, wobei als Kanalreinigungsgerät 14 nun eine Kanalreinigungsdüse dargestellt ist. Wenn der Brauchwasservorrat, der zum Betrieb des Kanalreinigungsgeräts 14 dient, im Frischwassertank 11 aufgebraucht ist, werden das Kanalreinigungsgerät 14 und die Saugleitung 15 aus dem zu reinigenden Kanalabschnitt 21 herausgezogen. Das Kanalreinigungsfahrzeug 10 wird zu einem anderen Kanalschacht 22' bewegt. Der Kanalschacht 22' führt im Ausführungsbeispiel zu einem bereits gereinigten Kanalabschnitt 23 desjenigen Kanals 20, zu dem auch der zu reinigende Kanalabschnitt 21 gehört. Selbstverständlich kann auch ein Kanalschacht gewählt werden, der zu einem Kanalabschnitt eines anderen Kanals führt. Es ist jedoch praktikabler, lange Fahrtwege zu vermeiden und das Brauchwasser aus einem Kanalschacht in der Nachbarschaft des zu reinigenden Kanalabschnitts zu entnehmen. Ferner kann das Brauchwasser erfindungsgemäß auch einem noch zu reinigenden Kanalabschnitt entnommen werden, da das über den Verunreinigungen stehende bzw. fließende, aber noch nicht mit Schmutz und Schlamm verwirbelte Wasser zur Verwendung als Brauchwasser geeignet ist.The inventive method is schematically in FIG. 2 shown. The direction of flow of the water in the channel 20 in the direction of a sewage treatment plant is indicated by an arrow B. By means of the sewer cleaning vehicle 10 shown on the left side of the drawing, as just described, a channel section 21 is freed from contaminants 30, using as a channel cleaning device 14 now a sewer cleaning nozzle is shown. When the service water supply, which serves to operate the sewer cleaning device 14, is used up in the fresh water tank 11, the sewer cleaning device 14 and the suction line 15 are pulled out of the channel section 21 to be cleaned. The sewer cleaning vehicle 10 is moved to another manhole 22 '. In the exemplary embodiment, the manhole 22 'leads to an already cleaned channel section 23 of that channel 20, to which the channel section 21 to be cleaned also belongs. Of course, a manhole can be selected, which leads to a channel section of another channel. However, it is practicable to avoid long journeys and to take the service water from a manhole in the vicinity of the channel section to be cleaned. Furthermore, according to the invention, the service water can also be taken from a channel section still to be cleaned, since the water standing above the impurities or flowing but not yet entangled with dirt and sludge is suitable for use as process water.

Das im bereits gereinigten Kanalabschnitt 23 fließende Wasser ist nach der erfolgten Reinigung vergleichsweise sauber. Darüber hinaus ist in der Regel seit der Reinigung dieses Kanalabschnitts 23 genug Zeit vergangen, dass verbleibende Schmutzpartikel am Boden des Kanalabschnitts 23 sedimentieren konnten. Nun wird mittels der Brauchwasserleitung 16 das überstehende, vergleichsweise saubere Wasser aufgenommen und in den Frischwassertank 11 geleitet. Dies kann bspw. in an sich bekannter Weise mit Hilfe der Hochdruckpumpe oder einer Vakuumpumpe oder eines Injektorsystems (bspw. eine einen Überdruck erzeugende Strahlpumpe) erfolgen. Ggf. kann ein geeignetes, ausreichend großflächiges Sieb vorgeschaltet sein, um grobe Schmutzteile zurückzuhalten.The already flowing in the channel section 23 flowing water is relatively clean after cleaning. In addition, enough time has elapsed since the cleaning of this channel section 23 that residual dirt particles could sediment at the bottom of the channel section 23. Now, the supernatant, relatively clean water is received by means of the hot water line 16 and passed into the fresh water tank 11. This can be done, for example, in a manner known per se with the aid of the high-pressure pump or a vacuum pump or an injector system (for example a jet pump generating an overpressure). Possibly. can be preceded by a suitable sufficiently large sieve to retain coarse dirt.

Die Kanalabschnitte 21 und 23 werden zweckmäßigerweise mittels einer Sperre 17, im Ausführungsbeispiel einer Überlaufsperre, getrennt, so dass sich das im Kanalabschnitt 23 in Richtung des Pfeils B fließende Wasser staut und die Aufnahme von Brauchwasser erleichtert wird.The channel sections 21 and 23 are expediently separated by means of a barrier 17, in the exemplary embodiment of an overflow barrier, so that the water flowing in the channel section 23 in the direction of arrow B accumulates and the uptake of service water is facilitated.

Dieser Vorgang kann mit der fortschreitenden Reinigung des Kanals 20 an beliebigen Kanalschächten, die mit bereits gereinigten oder noch zu reinigenden Kanalabschnitten verbunden sind, beliebig oft wiederholt werden, in der Regel, bis die Aufnahmekapazität des Kanalreinigungsfahrzeugs 10 für Schmutzwasser erschöpft ist.This process can be associated with the progressive cleaning of the channel 20 at any manholes connected to already cleaned or still to be cleaned channel sections are, as often repeated, usually until the capacity of the sewer cleaning vehicle 10 is exhausted for dirty water.

Figur 3 zeigt ein Ausführungsbeispiel, bei dem der Frischwassertank 11 und der Schmutzwassertank 12 in einem gemeinsamen Behälter aufgenommen und von einer verschiebbaren Trennwand 18 getrennt sind. Den Trennwand 18 dient dazu, die Volumina der Tanks variabel zu halten und den Bedürfnissen des Einzelfalls anzupassen. Das mit dem erfindungsgemäßen Verfahren gewonnene Brauchwasser kann zum Betrieb eines Kanalreinigungsgeräts 14 aus dem Frischwassertank 11 durch einen Auslauftrichter 19 abfließen. Da das Brauchwasser im Frischwassertank 11 Reste 30" von Schmutz- und Schwebteilchen enthalten kann, wird das Brauchwasser zweckmäßigerweise in einen an sich bekannten Sand- und/oder Schlammabscheider 24 geleitet, in dem sich diese Reste von Schmutz- und Schwebteilchen als Sedimente 30"' absetzen. Anschließend kann das Brauchwasser noch durch ein ausreichend dimensioniertes Sieb 25 geführt werden, um letzte störende Partikel zu entfernen. Das so behandelte Brauchwasser wird über eine Hochdruckpumpe 26 dem Kanalreinigungsgerät 14 zugeführt. Diese abschließende, mechanisch einfache und nicht aufwändige Behandlung des aus dem Schmutzwasser gewonnenen Brauchwassers stellt den ungestörten Betrieb der Hochdruckpumpe sicher. FIG. 3 shows an embodiment in which the fresh water tank 11 and the waste water tank 12 are received in a common container and separated by a sliding partition 18. The partition wall 18 serves to keep the volumes of the tanks variable and to adapt to the needs of the individual case. The process water obtained by the method according to the invention can flow out of the fresh water tank 11 through a discharge funnel 19 for operating a sewer cleaning device 14. Since the process water in the fresh water tank 11 residues 30 "may contain dirt and suspended particles, the process water is conveniently passed into a known sand and / or sludge 24 in which these residues of dirt and suspended particles as sediments 30"' drop. Subsequently, the process water can still be passed through a sufficiently sized screen 25 to remove the last interfering particles. The process water thus treated is supplied via a high pressure pump 26 to the sewer cleaning device 14. This final, mechanically simple and inexpensive treatment of the process water obtained from the waste water ensures the undisturbed operation of the high-pressure pump.

Claims (7)

Verfahren zur Kanalreinigung mit einem hydrodynamischen Kanalreinigungsgerät (14), wobei in einem zu reinigenden Kanalabschnitt (21) das Kanalreinigungsgerät (14) mit Brauchwasser unter Druck beaufschlagt und durch die Rückstoßkraft des resultierenden Wasserstrahls vorwärts bewegt wird und dabei Verunreinigungen (30) löst, und wobei anschließend das Kanalreinigungsgerät (14) zurückgezogen wird und dabei die Verunreinigungen (30') mit dem Wasserstrahl zurück gespült und in Form von Schmutzwasser aus dem Kanalabschnitt (21) entfernt werden, dadurch gekennzeichnet, dass das Brauchwasser aus einem bereits gereinigten Kanalabschnitt (23) oder einem noch zu reinigenden Kanalabschnitt entnommen wird.Method for sewer cleaning with a hydrodynamic sewer cleaning device (14), wherein in a channel section (21) to be cleaned, the sewer cleaning device (14) is pressurized with hot water and advanced by the repulsive force of the resulting water jet, thereby dissolving contaminants (30), and wherein then the sewer cleaning device (14) is withdrawn and thereby the contaminants (30 ') back flushed with the water jet and in the form of waste water from the channel section (21), characterized in that the hot water from an already cleaned channel section (23) or a still to be cleaned channel section is removed. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das aus dem bereits gereinigten Kanalabschnitt (23) bzw. aus dem noch zu reinigenden Kanalabschnitt entnommene Brauchwasser einem Frischwassertank (11) zugeführt wird.A method according to claim 1, characterized in that the fresh water tank (11) is removed from the already cleaned channel section (23) or from the still to be cleaned channel section taken hot water. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass zwischen dem zu reinigenden Kanalabschnitt (21) und dem das Brauchwasser liefernden Kanalabschnitt eine Sperre (17) angeordnet wird.Method according to claim 1 or 2, characterized in that a barrier (17) is arranged between the channel section (21) to be cleaned and the channel section supplying the service water. Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass eine Überlaufsperre angeordnet wird.A method according to claim 3, characterized in that an overflow barrier is arranged. Verfahren nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass die Sperre (17) als Stausperre zum Aufstauen des im das Brauchwasser liefernden Kanalabschnitt fließenden Wassers verwendet wird.A method according to claim 3 or 4, characterized in that the barrier (17) is used as a dam barrier for damming the water flowing in the service water supplying channel section. Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass das Brauchwasser in einen Frischwassertank (11) befördert wird.A method according to claim 5, characterized in that the service water is conveyed into a fresh water tank (11). Verfahren nach Anspruch 6, dadurch gekennzeichnet, dass das Brauchwasser aus dem Frischwassertank (11) durch einen Sand- und/oder Schlammabscheider (24) und/oder durch ein Sieb (25) zum Kanalreinigungsgerät (14) geleitet wird.A method according to claim 6, characterized in that the process water from the fresh water tank (11) through a sand and / or sludge separator (24) and / or through a sieve (25) to the sewer cleaning device (14) is passed.
EP20090009197 2008-08-04 2009-07-15 Method for cleaning sewers Not-in-force EP2151529B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200810036080 DE102008036080A1 (en) 2008-08-04 2008-08-04 Method for sewer cleaning

Publications (3)

Publication Number Publication Date
EP2151529A2 true EP2151529A2 (en) 2010-02-10
EP2151529A3 EP2151529A3 (en) 2012-03-14
EP2151529B1 EP2151529B1 (en) 2014-12-24

Family

ID=41259361

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20090009197 Not-in-force EP2151529B1 (en) 2008-08-04 2009-07-15 Method for cleaning sewers

Country Status (2)

Country Link
EP (1) EP2151529B1 (en)
DE (1) DE102008036080A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5068940A (en) 1990-11-01 1991-12-03 Ray Harvey Company, Inc. Apparatus for cleaning sewers
DE19607913A1 (en) 1996-03-01 1997-09-11 Kurt Hoerger Cleaning device for buried drain-pipe
WO2004111355A1 (en) 2003-06-12 2004-12-23 Dietmar Kaiser Ag Water preparation device, in particular for a drain cleaning vehicle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4218808C2 (en) * 1992-06-06 1995-08-24 Uwe Klein Device for sewer cleaning
DE19620783A1 (en) * 1996-05-23 1997-05-28 Uraca Pumpen Spray device for internal cleaning of pipes and channels
DE19847141A1 (en) * 1998-02-03 1999-08-05 Maus K & I Service Gmbh Method for cleaning channels containing deposited material

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5068940A (en) 1990-11-01 1991-12-03 Ray Harvey Company, Inc. Apparatus for cleaning sewers
DE19607913A1 (en) 1996-03-01 1997-09-11 Kurt Hoerger Cleaning device for buried drain-pipe
WO2004111355A1 (en) 2003-06-12 2004-12-23 Dietmar Kaiser Ag Water preparation device, in particular for a drain cleaning vehicle

Also Published As

Publication number Publication date
EP2151529B1 (en) 2014-12-24
EP2151529A3 (en) 2012-03-14
DE102008036080A1 (en) 2010-02-11

Similar Documents

Publication Publication Date Title
DE3412217C2 (en)
EP0413129A2 (en) Removal method and apparatus for fluids containing production residues
EP2660208A1 (en) Sewage treatment plant with siphon overflow
DE10310486B4 (en) Top-guided return line system
EP3515784A1 (en) Grey-water processing device for rail vehicles
DE202010018297U1 (en) Device for the hydrodynamic removal of impurities in the interior of pipelines, in particular for the rehabilitation and cleaning of water-bearing pipelines in domestic and industrial areas
DE2535636A1 (en) PLANT FOR REMOVING SEDIMENTED SOLIDS FROM A SEPARATION BASIN
DE2719599C2 (en) Vehicle for sewer cleaning and mud transport
EP2151529B1 (en) Method for cleaning sewers
DE102005008603A1 (en) Cleaner for drinking water pipelines has water reservoir to feed pressurized water into isolated pipe sections and cyclone separator to remove debris
DE102005017948A1 (en) Mobile water effluent treatment assembly is located as reactors within stacked transport containers
DE1043228B (en) Method and device for sucking in sludge, in particular with sludge suction vehicles
DE2818729C3 (en) Backwashable quick filter system
DE102012110773B4 (en) Pumping station and process for pumping wastewater
DE19701010A1 (en) Pipeline interior cleaning by pressurised medium
DE102005034540B4 (en) Small wastewater treatment plant and method for operating the same
DE4425927C2 (en) Process for cleaning a liquid-carrying pipe
EP2865652B1 (en) Method and device for optimizing a small sewage treatment plant by avoiding or reducing the output of sludge particles from the compressed air lifting system for clear water extraction
EP0387759B1 (en) Sewer cleaning vehicle
DE2444241A1 (en) Removal of inorganic solids from sewage - particularly sand, gravel etc. by sedimentation of the sewage slurry and washing out of organic matter
DE102005044166A1 (en) Purification of rainwater (especially on the streets) involves separation into streams with dirt content separated off by a process more intense than purely gravitational separation
DE102008036737A1 (en) Cleaning device for sewer systems, pipelines and the like
DE102004022749B4 (en) Device for cleaning dirty water
DE102016125482A1 (en) Method and device for filtering a contaminant containing raw fluid by means of at least one membrane filter unit and a use thereof
DE102007033739A1 (en) Removing dental amalgam deposits from drains, blocks line downstream, then inserts flexible tubing for high-pressure water-jetting and vacuum extraction

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

AX Request for extension of the european patent

Extension state: AL BA RS

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

AX Request for extension of the european patent

Extension state: AL BA RS

RIC1 Information provided on ipc code assigned before grant

Ipc: E03F 9/00 20060101AFI20120206BHEP

17P Request for examination filed

Effective date: 20120914

17Q First examination report despatched

Effective date: 20130604

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20140716

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 703224

Country of ref document: AT

Kind code of ref document: T

Effective date: 20150115

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502009010383

Country of ref document: DE

Effective date: 20150212

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20141224

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141224

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150324

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141224

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141224

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141224

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141224

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150325

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141224

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141224

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141224

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141224

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141224

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141224

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150424

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141224

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502009010383

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141224

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20150928

Year of fee payment: 7

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20150925

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141224

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141224

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141224

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20150715

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150715

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150731

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150715

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150731

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20160331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150715

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 703224

Country of ref document: AT

Kind code of ref document: T

Effective date: 20150715

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150715

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502009010383

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141224

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141224

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20090715

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141224

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141224

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141224

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141224

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141224